Patent Application
20190120314
The present invention relates to the field of friction material production for automobile brake pads, and more particularly to a construction waste production Technology of Friction Material for Brake Pad.
The current technology to produce automotive brake pads friction material after continuous use, due to the temperature rise, brake performance deterioration, the brake effect is not good.
Therefore, how to design a brake pad friction material production process makes the production of brake pads friction material is good thermal stability and good braking performance is the industry's urgent need to solve the problem.
In order to solve the above-mentioned conventional technical problems, the present invention provides a construction waste filler brake friction material production process used in the production process by adding construction waste filler to produce heat stability good and good braking performance of automotive brake pads friction material.
The invention provides a construction waste filler brake pad friction material production process comprising the steps of:
The building material sorting to remove fiber impurities after the calcination, removal of white garbage and metal miscellaneous quality;
Sieving and removing the dust to form a filler, and the filler is calcined and cooled to soak, dehydrate and bake dry ingredients to be mixed;
The mixture to be mixed is made up of 5 kg of graphite per 100 kg, 0.5 kg of molybdenum disulfide, other media materials 4.5 kg evenly after mixing to enhance the treatment and grinding to produce building fillers;
According to composite fiber 25%, phenolic modified resin 6%, building filler 40%, friction material 20%, pyrite 0.5%, carbon black 0.5%, alumina 1%, 40 mesh brass powder 7% mass fraction ratio mix and stir in a high speed mixer for 20 to 40 minutes until all materials are fully fused and put the bucket is used to generate the friction material of the brake pad.
Preferably, the building material is sorted to remove fiber impurities and then calcined to remove white
The steps of the waste and metal impurities include:
Removal of fiber impurities in building materials;
Calcining the building material in a calciner controlled at a temperature of 550 to 650 degrees Celsius to remove white color rubbish and the use of magnetic absorption to remove metal impurities;
The building material was calcined in a calciner controlled at a temperature of 950 to 1050° C.
Melted and sorted to remove copper and aluminum impurities.
Preferably, the step of producing the mixture to be treated in the dehydration and drying comprises, in particular,
The building material was calcined in a calciner and the calcination temperature was controlled at 1200° C., calcined burning time 3 hours after the natural cooling to room temperature;
Transferring said building material on a sieve to remove dust to form said filler;
The filler is calcined in a calciner, the temperature is controlled at 1500-1700 degrees Celsius, and when calcined between 12 hours after the baked and sent to the cold pool soak 1.5-2.5 hours;
The filler after soaking is dehydrated and dried to form the mixture to be mixed.
Preferably, at the time of the generation of the friction material for the building filler filler brake pad, mixing in a mixing machine for 30 minutes until all materials are fully fused and released to produce the construction of rubbish filler brakes friction material.
Preferably, the filler is calcined in a calciner, the temperature is controlled at 1600 degrees Celsius, calcined burning time for 12 hours after the baked and sent to the cold pool soak for 2 hours.
Compared with the prior art, the construction waste filler of the embodiment of the present invention is a friction material production process, to produce the construction of waste filler brakes friction material with a soft belt just, just in the belt soft properties, can be sieved into a variety of particle size, the texture of dense, high hardness, particles into a ball.
Mo effect is obvious, the crystal size is small, impact resistance, easy to brake pads friction material other friction material stick combined, high temperature performance and stability. It is possible to keep the brake pad material at very high temperatures coefficient of friction.
The invention will now be further described with reference to the accompanying drawings and specific embodiments.
Please refer to
The production process comprises the steps of:
S1: the building material sorting to remove fiber impurities after calcination, remove white garbage and metal Impurity
This step specifically includes:
Removal of fiber impurities in building materials;
Calcining the building material in a calciner at a temperature of 550 to 650 degrees Celsius to remove white color rubbish and the use of magnetic absorption to remove metal impurities; preferably temperature control at 600 degrees Celsius.
The building material was placed in a calcination furnace controlled at a temperature of 950 to 1050° C. and calcined and sorting to remove copper and aluminum impurities, preferably the temperature control at 1000 degrees Celsius.
In this step, the fiber impurities such as wood chips, paper chips, and fabric sorting are first removed and then calcined to remove white garbage, and finally, the use of magnetic absorption of iron and other impurities, and then removed by high temperature melting Copper and aluminum and other metal impurities.
S2: sifting and removing the dust to form a filler, and the filler is calcined and cooled to soak, dehydrate and drying to produce the mixture to be mixed;
S3: The mixture to be mixed according to every 100 kg plus 5 kg of graphite, 0.5 kg of molybdenum disulfide, other media materials 4.5 kg evenly after mixing to enhance the treatment and grinding to produce building fillers;
The building fillings produced in this step are:
1, Mohs hardness 5-6
2, less than 3% moisture
3, the number of 40-500
4, bulk density of 2.9 g/cm3
5, the proportion of 2.2-2.4 20
6, pH: neutral acid.
S4: 25% of composite fiber, 6% of phenolic resin, 40% of building filler, 20% of pyrite, 0.5% of pyrite, 0.5% of carbon black, 1% of alumina, 40% of brass powder
Mix and stir in a high speed mixer for 20 to 40 minutes until all materials are fully fused.
Releasing the bucket to generate the friction material of the brake pad into the building filler.
Further, the step of producing the mixture to be mixed in the dehydration and drying comprises, in particular,
The building material was calcined in a calciner, the calcination temperature was controlled at 1200° C., and the calcination time 3 hours after the natural cooling to room temperature;
Transferring said building material on a sieve to remove dust to form said filler;
The filler is calcined in a calciner, the temperature is controlled at 1500-1700 degrees Celsius, and calcined between 12 hours after the baked and sent to the cold pool soak 1.5-2.5 hours;
The filler after soaking is dehydrated and dried to form the mixture to be mixed.
Further, in the case where the above-mentioned friction material for the construction of the building filler brake pad is high stirring in a speed mixing machine for 30 minutes until all the materials are fully fused and released into the drum to produce the construction waste filler brake pads friction material.
Further, the filler was calcined in a calciner and the temperature was controlled at 1600° C., calcined burning time for 12 hours after the baked and sent to the cold pool soak for 2 hours.
After the completion of construction waste filler brakes friction material production, and then use the construction waste fill brake Pad Friction Material The process of producing brake pads is as follows:
First of all, to provide steel back, and with a good steel back special glue evenly coated on the steel back for the suppression of friction the surface of the material. In this step, mainly in accordance with the ratio of accessories to add, including:
Steel back oil: steel back with a shot blasting machine to remove oil and rust;
With plastic: with alcohol or acetone diluted steel back to the work of special adhesive concentration;
Steel back glue: the use of a good steel back with a special rubber coated on the steel back to suppress the friction material surface.
Material: The mixture is weighed according to the number of the brake pads and the quantity required.
Then, the friction material is loaded on a steel back press for hot pressing to produce a semi-finished brake pad,
Hot pressing temperature of 150° C.-160° C., press the pressure of 18 MPa, exhaust 3 times, each 30 seconds, insulation 300 seconds;
Finally, the semi-finished brake pads after hot pressing are subjected to a heat treatment, and the heat treatment temperature is a step heating 150° C.-180° C., the time is 4 to 12 hours, and then cooled to 50° C., the machinery and accessories installation of construction waste filler brakes. Specifically including mechanical treatment: press the brake sheet drawing process.
Require grinding, chamfering and other mechanical processing; installation of silencer: in the processing of a good brake pads installed silhouette; riveting: the attachment riveting on the back of the brake shoe; spray: the mechanical wear on the brake pads or spray on the brake pad on the model and the date of production;
Further, the construction waste filler brake pad is packaged.
Compared with the prior art, the construction waste filler of the embodiment of the present invention is a friction material production process, to produce the construction of waste filler brakes friction material with a soft in the hard, hard in the soft properties, you can sieve into a variety of particle size, the texture of dense, high hardness, particles into a ball. Increased friction effect is obvious, the crystal size is small, impact resistance, easy to brake pads Friction material Other friction material bonding, high temperature performance and stability. Able to maintain construction waste filler brakes at higher temperatures friction material is very good friction coefficient.
The foregoing is a further elaboration of the present invention in connection with specific preferred embodiments. It will not be understood that the specific implementation of the invention is limited to these illustrations. For the technology of the present invention
It will be apparent to those skilled in the art that, without departing from the teachings of the present invention, a simple deduction or replacement should be considered as belonging to the scope of protection of the present invention.
| Number | Date | Country | Kind |
|---|---|---|---|
| 201610383033.8 | Jun 2016 | CN | national |
This is a U.S. National Stage under 35 U.S.C. 371 of the International Application PCT/CN2016/094932, filed Aug. 12, 2016, which claims priority under 35 U.S.C. 119(a-d) to CN 201610383033.8, filed Jun. 1, 2016.
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/CN2016/094932 | 8/12/2016 | WO | 00 |
