Patent Application
20240359231
The present application claims priority of the Taiwan Patent Application No. 112115636, filed on Apr. 26, 2023 with the Taiwan Intellectual Property Office, titled “Low-carbon casting and mold thereof, and equipment comprising the low-carbon casting”, which is incorporated by reference in the present application in its entirety.
The present disclosure relates to a casting, a mold thereof, and equipment comprising the casting, and more particularly, to a low-carbon emission casting, a mold thereof, and equipment comprising the low-carbon emission casting.
Generally, the casting technology for industrial parts mostly involves heating of metal. However, nowadays, under the pursuit of environmental protection, such manufacturing methods emit a large amount of carbon dioxide, causing products made thereby to have a large amount of carbon footprints.
In addition, traditional metal casting methods often require pouring molten metal into a mold, and then waiting for the metal to cool and solidify before forming a casting. However, those of ordinary skill in the art will understand that heating metals to a molten state requires a large amount of energy and thus increases carbon emissions.
To further explain, the manufacturing of metal materials, such as smelting, produces a large amount of carbon emissions. Therefore, every step in the manufacturing process of casting products produces a large amount of carbon emissions, which is not in line with the environmental protection trends nowadays. In addition, due to limitations in the manufacturing process of metal materials, maintaining casting strength at high temperatures for casting materials produced in the past were often difficult. As a result, having a break-through on the mechanical characteristics of precision machinery which is required to operate in high-temperature and high-pressure environments is difficult.
Therefore, there is a need for a low-carbon emission casting, a mold thereof, and equipment comprising the low-carbon emission casting to solve the above-mentioned conventional problems.
Based on the above objectives, the present application provides a low-carbon emission casting, which includes a casting main body formed by casting and solidification at room temperature; a plurality of embedded parts embedded in the casting main body of the casting; and a connecting portion disposed on at least one surface of the casting main body.
Preferably, at least one groove is defined on at least one surface of the casting main body.
Preferably, the plurality of embedded parts include a plurality of fixing parts, which are provided on a bottom surface of the casting main body, at least one first keyhole is defined in each of the plurality of fixing parts, and the at least one first keyhole is provided for at least one first locking element to lock the fixing part on the ground.
Preferably, the connecting portion is made of metal and includes a first connecting member, a second connecting member, and a third connecting member; the first connecting member is disposed at a center of a top surface of the casting main body, the second connecting member is disposed adjacent to the first connecting member, and the third connecting member is disposed on a side surface of the casting main body.
Preferably, the plurality of embedded parts include at least one pipeline, and two openings of each of the at least one pipeline are located on at least one surface of the casting main body.
Preferably, the plurality of embedded parts include a plurality of second locking elements, and each of the second locking elements includes a locking unit, a connecting unit, and an embedded unit; the locking unit is located on a surface of the casting main body, and a screw hole is defined in the locking unit; the connecting unit is connected to the locking unit, the embedded unit is connected to the connecting unit, and an effective diameter of the connecting unit is less than an effective diameter of the locking unit and an effective diameter of the embedded unit.
Preferably, the low-carbon emission casting has a wall thickness greater than 50 mm.
Based on the above object, the present application further provides a mold for manufacturing the above-mentioned low-carbon emission casting, including a mold bottom portion; a plurality of mold side portions disposed on the mold bottom portion; at least one supporting member, two ends of the at least one supporting member are abutted against on upper edges of at least two of the plurality of mold side portions.
Preferably, the low-carbon emission casting mold of the present application further includes at least one groove forming member connected to the at least one supporting member and suspended on the mold bottom portion.
Based on the above objectives, the present application further provides an equipment including low-carbon emission castings, including the above-mentioned low-carbon emission casting and a machining device. The machining device is connected to the low-carbon emission casting.
The present application provides the low-carbon emission casting, the mold thereof, and the equipment including the low-carbon emission casting. Since the manufacturing of the casting main body does not require high-temperature melting, the low-carbon emission casting, the mold thereof, and the equipment including the low-carbon emission casting of the present application can be energy saving and carbon footprint reducing. Also, since the manufacturing of the casting main body does not require high-temperature melting, the embedded parts can be placed in the mold in advance to reduce subsequent processing steps, thereby making the manufacturing more efficient. In addition to having low-carbon emission during the production process, low-carbon emission casting, the mold thereof, and the equipment including the low-carbon emission casting provided by the present application have better heat resistance, lower thermal conductivity, lower expansion coefficient, and better shock-absorbing performance.
The following describes specific embodiments of the present application in detail with reference to the accompanying drawings, which will make technical solutions and other beneficial effects of the present application obvious.
Before describing at least one embodiment of the present disclosure in detail, it should be understood that the present disclosure is not necessarily limited to its application in the details illustrated in the following examples, for example, the number of embodiments, specific mixing ratio used thereof, etc. The present disclosure can be implemented or realized in other embodiments or in various ways.
The following will describe embodiments according to the present application with reference to relevant drawings. For ease of understanding, the same components in the following embodiments are labeled with the same symbols.
Referring to
The casting main body 101 of the present application is made of low-carbon ore casting material. It can be solidified to form a casting without undergoing the high temperature of metal melting. It can be used for a base, a bed, a beam, a machine column, a spindle head, fuselage, workbench, etc. of machine tools or other instruments. In other words, in one embodiment, the low-carbon ore casting material does not include metallic materials.
To further explain, as shown in
In other embodiments, when manufacturing the low-carbon ore casting material of the present application, the second aggregate 53 can be unused, and can only use the first aggregate 52 mainly composed of ore as a main aggregate of the casting.
In one embodiment, the binder 51 can include silicate, aluminate, or ferric aluminate. The silicate can be tricalcium silicate and dicalcium silicate, the aluminate can be tricalcium aluminate, ferric aluminate can be tetracalcium aluminoferrite, but is not limited thereto.
In one embodiment, the binder 51 can include tricalcium silicate, dicalcium silicate, tricalcium aluminate, tetracalcium aluminoferrite, micro-silica powder (quartz powder) and other materials that can enhance strength and durability. In a preferred embodiment, tricalcium silicate, dicalcium silicate, tricalcium aluminate, and tetracalcium aluminoferrite can account for about 50% by weight of the binder 51.
In addition, in a preferred embodiment, tricalcium silicate, dicalcium silicate, tricalcium aluminate, tetracalcium aluminoferrite, and micro-silica powder (quartz powder) are all nanoscale powders, thus forming dense structure. In a preferred embodiment, the micro-silica powder is silicon dioxide powder, having a particle size between 7 nanometers (nm) and 40 nm, such as between 10 nm and 20 nm, to facilitate the formation of the dense structure. In other embodiments, the silica powder can also have other particle sizes, such as less than 300 nm.
In one embodiment, the binder 51 further includes calcium oxide. The particle size of fine calcium oxide in the calcium oxide can be between 0.7 microns and 100 microns, preferably between 20 microns and 80 microns. The weight percentage of fine calcium oxide is 90% to 99% of the calcium oxide.
In one embodiment, the binder 51 includes cement, silicon dioxide, and calcium oxide. The cement includes general cement and ultrafine cement. The particle size of the ultrafine cement is 2 microns to 20 microns, and the weight percentage ratio of the general cement and the ultrafine cement is 3:1 to 5:1.
In one embodiment, silica can have two forms, namely fumed silica and precipitated silica, and the weight percentage ratio between the two can range from 1:1 to 1:50.
In one embodiment, the cement can include one or more of blast furnace slag, fly ash, silica powder, pozzolana, calcium carbonate, silica, aluminum oxide (such as dialuminium trioxide), iron oxide (such as diiron trioxide), or plaster.
It is further explained that the low-carbon ore casting material of the present application has good impermeability and water-absorbing properties, and the water-absorbing properties depend on factors such as aggregate mix ratio, water-binder ratio, and material composition. A water absorption rate of the low-carbon ore casting material of the present application is very low, less than about 0.1%, because the above-mentioned fine aggregates and powders make a microstructure of the casting denser. In addition, the low-carbon ore casting material of the present application usually contains high-efficiency water reducing agent and other additives to improve fluidity and working performance, thereby facilitates to reduce the water absorption of a final casting. The casting formed from the low-carbon ore casting material of the present application also has excellent impermeability properties and can maintain high impermeability capabilities under water pressure.
In one embodiment, as shown in
In addition, in a preferred embodiment, tricalcium silicate, dicalcium silicate, tricalcium aluminate, tetracalcium aluminoferrite, and micro-silica powder (quartz powder) are all nanoscale powders. That is to say, particle sizes of these powders are about 100 nm to 300 nm, thus forming the dense structure.
It is further explained that when forming the micro-silica powder, due to a surface tension during the phase change of a formation process, the micro-silica powder has an amorphous phase under an action of surface tension, and the surface is smooth. A portion of the micro-silica powder is an aggregate of multiple spherical particles adhered together. The micro-silica powder is a material with a very high surface area and high activity. A fineness of micro-silica powder is less than 1000 nm, an average particle size can be 100 nm to 300 nm, and a specific surface area is 20 to 28 m2/g. The fineness and the specific surface area thereof are about 80 to 100 times that of the cement and 50 to 70 times that of the fly ash. Therefore, it is very suitable for binding other base materials.
In a preferred embodiment, most of the micro-silica powder is silicon dioxide powder, and having the particle size between 7 nm and 40 nm, such as 10 nm and 20 nm, such as between 10 nm and 20 nm, to facilitate the formation of the dense structure. In other embodiments, the silica powder can also have other particle sizes, such as less than 300 nm.
In addition, in a preferred embodiment, in terms of weight percentage, the micro-silica powder can be composed of one or more of 75% to 98% of silicon dioxide, 1.0±0.2% of alumina, 0.9±0.3% of ferric oxide, 0.7±0.1% of magnesium oxide, calcium oxide 0.3±0.1%, and Na2O 1.3±0.2%. In addition, a bulk density thereof is approximately 320 to 700 kg/m3.
In one embodiment, when the micro-silica powder reacts with the silicate, a hydration reaction occurs to produce hydrated calcium silicate and calcium hydroxide. Hydrated calcium silicate can have an effect of binding other substances. Micro-silica powder, calcium hydroxide, and water can react to regenerate more calcium silicate gel polymer. At this time, the calcium hydroxide content decreases, as shown in the following chemical reaction:
calcium hydroxide+micro-silica powder+water→calcium silicate hydrate
Ca(OH)2+SiO2+H2O→CSH
Calcium silicate gel polymer can increase adhesion of various base materials within the casting and help reduce permeability. At the same time, since the calcium hydroxide is reduced during this reaction, a durability of the overall structure can also be improved.
In summary, since the particle sizes of the micro-silica powder are very small, the micro-silica powder can act as fillers and gelling materials. The micro-silica powder can be filled between the particles of each of the base materials, especially the gaps between aggregates, and the micro-silica powder can also be combined with calcium hydroxide, thus making the structure of the casting denser, stronger and with low permeability.
It is further explained that the low-carbon ore material of the present application has good impermeability and water-absorbing properties, and the water-absorbing properties depend on factors such as aggregate mix ratio, water-binder ratio, and material composition. A water absorption rate of the low-carbon ore material of the present application is very low, less than about 0.1%, because the above-mentioned fine aggregates and powders make a microstructure of the casting denser. In addition, the low-carbon ore material of the present application usually contains high-efficiency water reducing agent and other additives to improve fluidity and working performance, thereby facilitates to reduce the water absorption of a final casting. The casting formed from the low-carbon ore material of the present application also has excellent impermeability properties and can maintain high impermeability capabilities under water pressure.
In one embodiment, the particle size of the first aggregate 52 is less than or equal to 15 mm, and a second particle size of the second aggregate is less than a first particle size of the first aggregate. Preferably, in one embodiment, the particle size of the first aggregate 52 is between 5 mm and 12 mm, for example, it can be 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm or 12 mm, or any particle size within the range, but not limited thereto. In one embodiment, preferably, the particle size of the first aggregate 52 is between 5 mm and 10 mm.
To further explain, in one embodiment, the first aggregate 52 can be a hard stone material in an air-dry state, and the first aggregate 52 can be one or more of gabbro, granite, basalt, andesite, conglomerate, sandstone, shale, diabase, pyroxenite, or quartz. In other words, the first aggregate 52 can be composed of one or more hard stone(s).
In one embodiment, the first aggregate 52 can be in the air-dried state through naturally air-dried or other manner. In other embodiments, the first aggregate 52 is a dust-free hard stone with edges and corners. That is to say, in the present application, the ore raw material is only required to undergo processes such as drying, crushing, dust removal, cleaning, and particle size screening (the order can be adjusted according to actual needs and is not limited) to obtain the first aggregate 52. The shape of the first aggregate 52 is not limited, so the aggregate shape processing process can be eliminated.
In one embodiment, the second particle size of the second aggregate 53 is less than 3 mm, for example, 1 mm, 2 mm, 3 mm, or any particle size between 0 mm and 3 mm. Preferably, the second aggregate 53 can be in an air-dry state, and a dust-free and angular sandy material. To further explain, in one embodiment, the second aggregate 53 can be natural sand or artificial sand, and having silica as a main material.
In other embodiments, the second aggregate 53 can also include other substances. For example, the second aggregate 53 can also include one or more of slag, sea sand, and coral sand. In other words, one or more of slag, sea sand, and coral sand can partially or completely replace the sandy material mainly composed of silica.
In one embodiment, the weight percentage of the first aggregate 52 and the second aggregate 53 in the low-carbon ore casting material can range from 0% to 80%. Preferably, in terms of weight percentage, the binder can range from 35% to 45%, the first aggregate 52 and the second aggregate 53 can range from 35% to 45%, the water can range from 5% to 12%, and the additives can range from 2% to 8%. To further explain, in a preferred embodiment, the weight percentage of the first aggregate 52 and the second aggregate 53 can be about 50%.
In one embodiment, the additive can include one or more of a cement modifier and a concrete shrinkage modifier. For example, the cement modifier can be a high-performance water reducing agent, etc., and the concrete shrinkage modifier can be a magnesium oxide expansion agent, a high-performance concrete expansion agent, etc.
A plurality of embedded parts can be embedded in the casting main body 101. In one embodiment, the plurality of embedded parts can include a plurality of fixing parts 102. In addition, in one embodiment, a melting temperature or a withstanding temperature of the plurality of embedded parts is lower than a melting temperature of the metal, for example, lower than 800° C.; and in another embodiment, the melting temperature or the withstanding temperature of the plurality of embedded parts is lower than 250° C.
The plurality of fixing parts 102 can be disposed on a bottom surface of the casting main body 101, and at least one first keyhole 1021 can be defined on each of the plurality of fixing parts 102, and the first keyhole 1021 can be provided for at least one first locking element 1022 to lock a fixing part 102 on the ground, so that the casting main body 101 can be firmly fixed on the ground.
In other embodiments, lock holes, fixing holes, fixing units, etc. can also be provided on the fixing part 102 to firmly connect the fixing parts 102 to the casting main body 101. In addition, since the fixing parts 102 are pre-embedded in the casting main body 101 before the casting main body 101 is solidified, subsequent processing steps can be reduced.
In addition, the plurality of embedded parts can also include at least one pipeline, and two openings of each of the at least one pipeline are located on at least one surface of the casting main body 101. That is to say, an inlet and an outlet of the pipeline can be located on same or different surfaces on the casting main body 101. In addition, in one embodiment, a melting temperature of the pipeline is lower than the melting temperature of the metal, for example, lower than 800° C.; and in another embodiment, the melting temperature of the pipeline is lower than 250° C.
In one embodiment, as shown in
The second pipeline 107 can be a metal pipe or a pipe made of other strong materials with excellent thermal conductivity. The second pipeline 107 is provided for various fluids such as water, oil, cooling solution, etc., to pass through and serves as a cooling pipeline or other supply pipeline.
Preferably, in one embodiment, when the second pipeline 107 is used as a cooling pipeline, it can also be arranged in a spiral manner in the casting main body 101 as shown in
In one embodiment, the plurality of embedded parts can further include a plurality of second locking elements 108. As shown in
In one embodiment, the plurality of embedded parts can also include at least one sensor 110, such as a temperature sensor, a pressure sensor, a vibration sensor, a speed sensor, etc. Since the casting material of the present application can be cast without applying additional energy (at least without applying heat or mechanical stress), the sensor 110 can be placed in the mold in advance, and then the casting material is added. Therefore, subsequent processing steps can be reduced, and the sensor 110 is not damaged due to heat.
To further explain, the connecting portion can be disposed on at least one surface of the casting main body 101. In one embodiment, the connecting portion can be made of metal for a better processing accuracy, such as numerical control (e.g., computer numerical control or CNC) processing, but not limited thereto. The advantage of being made of metal is that the connecting portion can have sufficient processing accuracy to facilitate defining of structural features such as screw holes, tenons, grooves, etc.
In one embodiment, the connecting portion can include at least one connecting member, for example, a first connecting member 103, a second connecting member 104, and a third connecting member 105. The first connecting member 103 can be disposed at a center of a top surface of the casting main body 101, the second connecting member 104 can be disposed adjacent to the first connecting member 103, and the third connecting member 105 can be disposed on a side surface of the casting main body 101.
In one embodiment, the first connecting member 103 can be connected to a slide rail; the second connecting member 104 can be connected to a machining device, such as a cutting tool, a three-axis processing platform, a multi-axis processing platform, etc.; and the third connecting member 105 can be locked with a sheet metal element and the sheet metal element can be used as a shell.
In one embodiment, in order to reduce a weight of the low-carbon emission casting 10 of the present application, at least one groove 1011 can be defined on the at least one surface of the casting main body 101 through a design of the mold. Therefore, while ensuring an overall mechanical strength of the low-carbon emission casting 10, the weight of the overall structure can be further reduced.
Correspondingly, in one embodiment, the present application also provides a mold for producing the low-carbon emission casting 10 as described above. The mold of the low-carbon emission casting 10 includes a mold bottom portion 21, a plurality of mold side portions 22 and at least one supporting member 23. The plurality of mold side portions 22 can be disposed on the mold bottom portion 21, and both ends of the at least one supporting member 23 are abutted against upper edges of at least two of the plurality of mold side portions 22.
In one embodiment, since the casting main body 101 is pre-embedded with the embedded parts, the connecting portions, and other components, and the casting main body 101 is also defined with spaces such as keyholes and grooves, the casting main body 101 can have wall thicknesses that differ, for example, an interval between components filled by the casting main body 101, an interval between a component and a space filled by the casting main body 101, an interval between spaces filled by the casting main body 101, an interval between a space or a component and an edge of the casting main body 101, etc. In order to maintain a strength of an overall casting main body 101, a minimum wall thickness is 50 mm.
Since the low-carbon emission casting 10 of the present application does not require heating, a selection of materials is not required to be limited like conventional molds. Taking conventional iron castings as an example, sand molds are usually required to manufacture cast iron parts. Taking large castings as an example, only one casting is usually made in a sand mold, which is not efficient enough. In addition, in general sand molds, although the sand can be recycled, recycling the sand requires considerable electricity, and chemicals mixed with the sand cannot be reused. Since the mold of the low-carbon emission casting 10 of the present application can be made of wood, plastic steel, metal, and other materials that are easy to modularize the mold bottom portion 21 and the plurality of mold side portions 22, the mold can be easily reused, and in cooperation with the low-carbon emission casting 10 and material thereof of the present application, excellent energy saving and carbon reduction effects can also be achieved.
In one embodiment, as shown in
In one embodiment, the mold of the low-carbon emission casting 10 can further include at least one groove forming member 24 to form the above-mentioned groove 1011. The groove forming member 24 can be connected to at least one supporting member 23 and suspended above the mold bottom portion 21.
In one embodiment, the groove forming member 24 can be made of soft material, such as rubber, but is not limited thereto. In addition, in another embodiment, at least one protrusion 25 can be disposed on the upper edges of the plurality of mold side portions 22 to provide space for the first locking elements 1022 to lock, and can also reduce the weight of the overall structure to a certain extent. In addition, the groove forming member 24, the protrusion 25 and the above-mentioned embedded parts can be made of materials that do not require high temperature resistance.
It is worth mentioning that the mold bottom portion 21 in the present application corresponds to the top surface of the casting main body 101 in the present application. In other words, during manufacturing, the embedded parts and connecting portions can be placed in the mold in advance, and then the low-carbon ore casting material is added from above the mold. In another embodiment, if necessary, a mold top can be added, and the mold top can cover the bottom surface of the casting main body 101.
In one embodiment, as shown in
In addition, the structural strengthening member 109 is not particularly limited in the present application. For example, if the structural strengthening member 109 is a square steel pipe, at least one steel pipe penetrating through the casting main body 101 can be disposed. In addition, strengthening the structure in all directions is necessary, the steel pipes can be arranged in a staggered arrangement through connecting manners, such as welding. Therefore, after the casting main body 101 is solidified and formed, the staggered steel pipes can enhance the resistance in all directions. The arrangement of the staggered structural strengthening members 109 is not particularly limited, but generally speaking, it can have at least the following forms: arranged parallel to each other along a same direction on a plane, staggered along two directions perpendicular to each other on a plane, or staggered in three directions perpendicular to one another in the casting main body 101.
In another embodiment, as shown in
In addition, in other embodiments, the embodiments of
In one embodiment, the low-carbon emission casting 10 can be manufactured through the following manufacturing method:
In the above-mentioned manufacturing process, the second aggregate 53 can also be omitted. In addition, the embedded parts and the connecting portions are all disposed in the mold in advance. That is to say, the embedded parts, the connecting portions, and the connecting portions are all pre-embedded in the casting main body 101.
To further explain, in one embodiment, the first connecting member 103, the second connecting member 104, the third connecting member 105, the second locking element 108, the first pipeline 106, and the second pipeline 107 can be disposed in the mold in advance, and then the low-carbon ore casting material is added, and the fixing parts 102 and the groove 1011 are provided. Then, after the low-carbon ore casting material solidifies, the mold and excess material 40 are removed, and necessary processing is performed to obtain the low-carbon emission casting 10.
In one embodiment, the low-carbon ore casting material does not include resin material. To further explain, since the low-carbon ore casting material of the present application does not add resin materials, such as epoxy resin, the low-carbon ore casting material can have better fluidity, at least higher than that of casting materials added with resin materials. The low-carbon ore casting material of the present application has excellent fluidity and a performance sufficient to fill all corners of the mold before solidification. That is to say, the low-carbon ore casting material of the present application can be cast at room temperature (for example, 20° C. to 35° C.), filled in the mold under natural flow, and then solidified to form the low-carbon ore casting. Therefore, no vibration device or other external force is required, the material can be filled in the mold smoothly and reliably.
In one embodiment, since the mold is pre-embedded with the embedded parts, the connecting portions, and other components, and the mold is also defined with spaces such as keyholes and grooves, the casting main body 101 can have wall thicknesses that differ, for example, an interval between components filled by the casting main body 101, an interval between a component and a space filled by the casting main body 101, an interval between spaces filled by the casting main body 101, an interval between a space or a component and an edge of the casting main body 101, etc. In order to maintain a strength of an overall casting main body 101, a minimum interval between components of the mold and a minimum interval between a component of the mold and the mold itself is 50 mm.
In addition, in one embodiment, the minimum interval between components of the mold and the minimum interval between a component of the mold and the mold itself can be 0, so that the components are connected; or that the component (e.g., the connecting portion) is closely connected to the mold, thereby exposing the component (e.g., the connecting portion) from the casting main body 101 after the casting material is poured.
Specifically, in order to make the casting main body 101 have sufficient strength, and in order to allow the casting material to flow smoothly in the mold during casting, the minimum spacing in the mold is 50 mm. In other words, the minimum wall thickness of the casting main body 101 is about 50 mm.
To further explain, the low-carbon emission casting 10 formed by the low-carbon ore casting material of the present application that contains the above materials or is composed of the above materials has a thermal conductivity coefficient ranging from 2 to 7 W·m−1K−1; a specific heat capacity ranging from 0.7 to 1.5 Kj·kg−1K−1; a linear thermal expansion coefficient ranging from 5 to 15 10−6/K; a compressive strength greater than 125 MPa; a bending strength greater than 15 MPa; a Yang's modulus at 40000 MPa; and a density ranging from 2 to 3 g·cm−3.
In addition, the low-carbon emission casting 10 formed of the low-carbon ore casting material is also high-temperature resistant and can withstand a high temperature of at least 450° C. while maintaining excellent mechanical and physical properties. Compared with castings containing resin materials, such as materials containing epoxy resin, the low-carbon emission casting 10 of the present application can withstand temperature that is at least 200° C. or higher (generally, the epoxy resin can only withstand a maximum temperature that is about 150° C.).
In one embodiment, for the low-carbon emission casting 10 formed by the first embodiment of the low-carbon ore casting material, the thermal conductivity coefficient ranges from 2 to 5 W·m−1K−1, for example, 3.0 W·m−1K−1; the specific heat capacity of the casting ranges from 0.8 to 2.0 Kj·kg−1K−1, for example, 1.2 Kj·kg−1K−1; the linear thermal expansion coefficient of the casting ranges from 8 to 15 10−6/K, for example, 12 10−6/K; the compressive strength of the casting is greater than 125 MPa; the bending strength of the casting is greater than 15 MPa; the Young's modulus of the casting is 45000 MPa; the density of the casting is between 1.8-3.3 g·cm−3, for example, 2.5 g·cm−3; a damping logarithmic attenuation rate ranges from 0.02 to 0.04, for example, 0.03; and a damping ratio ranges from 0.4 to 0.6, for example, 0.5.
In another embodiment, for the low-carbon emission casting 10 formed by the second embodiment of the low-carbon ore casting material, the thermal conductivity coefficient ranges from 3 to 9 W·m−1K−1, for example, 6.0 W·m−1K−1; the specific heat capacity of the casting ranges from 0.5 to 1.6 Kj·kg−1K−1, for example, 0.85 Kj·kg−1K−1; the linear thermal expansion coefficient of the casting ranges from 5 to 15 10−6/K, for example, 7 10−6/K; the compressive strength of the casting is greater than 150 MPa; the bending strength of the casting is greater than 20 MPa; the Young's modulus of the casting is 80000 MPa; the density of the casting is between 1.8-3.3 g·cm−3, for example, 2.8 g·cm−3; the damping logarithmic attenuation rate ranges from 0.01 to 0.03, for example, 0.021; and the damping ratio ranges from 0.2 to 0.5, for example, 0.33.
To further explain, the thermal conductivity coefficient of an epoxy resin ore casting ranges from 2.9 to 3.0 W·m−1K−1; the specific heat capacity of the epoxy resin ore casting ranges from 0.7 to 0.9 Kj·kg−1K−1; the linear thermal expansion coefficient of the epoxy resin ore casting is 15 10−6/K; the compressive strength of the epoxy resin ore casting ranges from 110 to 150 MPa; the bending strength of the epoxy resin ore casting ranges from 30 to 35 MPa; the Young's modulus of the epoxy resin ore casting ranges from 38 to 45000 MPa; the density of the epoxy resin ore casting ranges from 2.3 2.4 g·cm−3.
To further explain, the thermal conductivity coefficient of ordinary concrete is 2 W·m−1K−1; the specific heat capacity of the ordinary concrete is 1 Kj·kg−1K−1; the linear thermal expansion coefficient of the ordinary concrete ranges from 10 to 11 10−6/K; the compressive strength of the ordinary concrete ranges from 5 to 55 MPa; the bending strength of the ordinary concrete ranges from 0 to 5 MPa; the Young's modulus of the ordinary concrete ranges from 22000 to 35000 MPa; and the density of the ordinary concrete is 2.3 g·cm−3.
To further explain, the thermal conductivity coefficient of a natural hard stone is 1.7 W·m−1K−1; the specific heat capacity of the natural hard stone is 0.85 Kj·kg−1K−1; the linear thermal expansion coefficient of the natural hard stone ranges from 5.5 to 7.5 10−6/K; the compressive strength of the natural hard stone ranges from 280 to 360 MPa; the bending strength of the natural hard stone ranges from 13 to 35 MPa; the Young's modulus of the natural hard stone ranges from 90000 to 120000 MPa; the density of the natural hard stone ranges from 2.9 to 3.0 g·cm−3.
To further explain, the thermal conductivity coefficient of cast iron ranges from 29 to 54 W·m−1K−1; the specific heat capacity of the cast iron ranges from 0.46 to 0.63 Kj·kg−1K−1; the linear thermal expansion coefficient of the cast iron ranges from 9.5 to 10.5 10−6/K; the bending strength ranges from 100 to 800 MPa; the Young's modulus of the cast iron ranges from 80 to 185000 MPa; the density of cast iron ranges from 7.2 to 7.4 g·cm−3; the logarithmic damping attenuation rate is 0.003; and the damping ratio is 0.05.
To further explain, the thermal conductivity coefficient of S235 steel is 50 W·m−1K−1; the specific heat capacity of S235 steel is 0.45 Kj·kg−1K−1; the linear thermal expansion coefficient of S235 steel is 12 10−6/K; the bending strength of S235 steel ranges from 340 to 470 MPa; the Young's modulus of S235 steel is 210000 MPa; the density of S235 steel is 7.8 g·cm−3; the logarithmic damping attenuation rate is 0.001; and the damping ratio is 0.02.
To further explain, the thermal conductivity coefficient of aluminum is 130-220 W·m−1K−1; the specific heat capacity of aluminum is 0.9 Kj·kg−1K−1; the linear thermal expansion coefficient of aluminum ranges from 23 to 24 10−6/K; the bending strength of aluminum strength ranges from 120 to 500 MPa; the Young's modulus of aluminum is 70000 MPa; the density of aluminum is 2.7 g·cm−3.
To further explain, the thermal conductivity coefficient of stainless steel is 15 W·m−1K−1; the specific heat capacity of stainless steel is 0.5 Kj·kg−1K−1; the linear thermal expansion coefficient of stainless steel ranges from 10 to 16 10−6/K.
To further explain, the damping logarithmic attenuation rate of aluminum alloy ranges from 0.01 to 0.15 and the damping ratio ranges from 0.01 to 0.05.
From the above, it can be seen that the vibration-absorbing performance of the casting formed by the low-carbon ore casting material of the present application is about 10 times that of cast iron (gray cast iron), and has a lower thermal conductivity coefficient than that of cast iron, and has a lower thermal conductivity than that of epoxy resin ore. The casting has better heat resistance and Young's modulus, and has a lower thermal expansion coefficient. In other words, the casting formed by the low-carbon ore casting material of the present application has functions of heat resistance, low heat conduction, low expansion coefficient, and high vibration-absorbing performance.
In other words, the low-carbon emission casting 10 formed from the low-carbon ore casting material of the present application has a lower thermal conductivity coefficient and sufficient compressive strength, bending strength, and Young's modulus compared with other materials, especially commonly used materials such as cast iron and concrete. Therefore, the low-carbon emission casting 10 is suitable for an equipment requiring excellent thermal insulation and vibration resistance, such as machine tools.
In addition, in one embodiment, the casting formed from the low-carbon ore casting material of the present application can have a width of approximately 3 meters, a height of approximately 2 to 4 meters, and a length of approximately 4 meters. At least the casting of this embodiment can have various effects of the above embodiments.
In addition to the above advantages, the low-carbon emission casting 10 formed from the low-carbon ore casting material of the present application has a lower density than cast iron and most metal materials, so that the overall weight of the finished product can be greatly reduced. That is to say, the low-carbon emission casting 10 of the present application not only has excellent mechanical properties, but also has the effect of lightweighting.
As shown in
The machining device 31 can include one or more of a three-axis machining device, a five-axis machining device, a cutting tool, a linear slide rail, a lifting platform, a heating device, a cooling device, and a conveying device. The casting main body 101 can be the base, the bed, the beam, the machine column, the spindle head, the fuselage, the workbench, etc. of machine tools or other instruments.
In summary, the present application provides the low-carbon emission casting, the mold thereof, and the equipment including the low-carbon emission casting. Since the manufacturing of the casting main body does not require high-temperature melting, the low-carbon emission casting, the mold thereof, and the equipment including the low-carbon emission casting of the present application can be energy saving and carbon footprint reducing. Also, since the manufacturing of the casting main body does not require high-temperature melting, the embedded parts can be placed in the mold in advance to reduce subsequent processing steps, thereby making the manufacturing more efficient.
The above is only illustrative and not restrictive. Any equivalent modifications or changes that do not depart from the spirit and scope of the present application shall be included in the appended patent scope.
Although the present disclosure has been disclosed in a number of preferred embodiments, it is not intended to limit the present disclosure, but only to enable those with ordinary knowledge to clearly understand the implementation content of the present disclosure. For a person of ordinary skill in the art, various changes and modifications can be made without departing from the spirit and scope of the present disclosure that is intended to be limited only by the appended claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 112115636 | Apr 2023 | TW | national |
