Patent Application
20100307066
1. Field of the Invention
The present invention relates to an abrasive material; more particularly, relates to fabricating an abrasive material having abrasive particles uniformly distributed within for grinding and lubricating with self-sharpening, where the abrasive material is obtained through easy fabricating process with low cost and high quality.
2. Description of the Related Art
Needs are increased in technologies for precise molds and super-precise surface, like mold polishing and wafer polishing. Concerning surface polishing, free abrasives polishing, electro polishing and chemical mechanical polishing are used most often.
A prior art of abrasive pad has micropores each smaller than 50 μm, where more than 75% of the micropores are smaller than 20 μm. The abrasive pad is made with a single-phase solution which is obtained with a polymer resin and a supercritical gas combined together. Another prior art of abrasive pad processes lens, mirror, silicon wafer, glass-ceramic based rigid disk, alumina substrate and metal to obtain flat surface with stable and high efficiency. Another prior art of abrasive pad uses a technology similar to LIGA to form a photoresist master mold on a metal substrate; and then particles of metal and ceramics are simultaneously deposited in the photoresist master mold. The particles of metal can be particles of nickel (Ni), alloy of Ni, copper (Cu), alloy of Cu, diamond, cubic boron nitride (CBN), aluminum oxide (Al2O3), zinc oxide (ZnO2), silicon carbide (SiC), etc. The abrasive pad can be a tool for making mini diamond grinding rod or spindle.
In the other hand, bamboo charcoal is a material made of bamboo. It has various applications, like soil improvement agent, odor absorber, water purifier, etc. Yet, products related to bamboo charcoal are still developed in an early stage.
However, most polish technologies use polishing cloths, which are not fit for curve of irregular surface; and, bamboo charcoal used in abrasive material is not found. Hence, the prior arts do not fulfill all users' requests on actual use.
The main purpose of the present invention is to provide an abrasive material having abrasive particles uniformly distributed for grinding and lubricating with self-sharpening, where the abrasive material is obtained through easy fabricating process with low cost and high quality.
To achieve the above purpose, the present invention is a bamboo charcoal composite abrasive material and a method of fabricating the same, where the bamboo charcoal composite abrasive material comprises a carrier, a coating layer and a plurality of abrasive particles; the carrier has a plurality of vascular bundles as pores; the coating layer is coated with a metal coating on inner surface of the vascular bundle in the bamboo charcoal carrier; the abrasive particles are uniformly distributed in the metal coating; and the bamboo charcoal composite abrasive material has a method of fabricating the same, comprising steps of: (a) obtaining a carrier having a plurality of vascular bundles as pores; (b) processing the carrier into a certain length and grinding a sectional end surface of the carrier to obtain a flow entry plane; (c) sinking the carrier into a solution and releasing air in the vascular bundles of the carrier through ultrasonic vibration; (d) obtaining a tank, the tank containing a solution of a metal coating with abrasive particles uniformly distributed in the solution; (e) transferring the abrasive particles into the vascular bundles of the carrier by fluid pressure; and (f) obtaining a coating layer of the metal coating on an inner surface of each of the vascular bundles of the carrier to fix the abrasive particles on the vascular bundles. Accordingly, a novel bamboo charcoal composite abrasive material and a method of fabricating the same are obtained.
The present invention will be better understood from the following detailed description of the preferred embodiment according to the present invention, taken in conjunction with the accompanying drawings, in which
The following description of the preferred embodiment is provided to understand the features and the structures of the present invention.
Please refer to
The carrier 11 is made of bamboo charcoal or coconut charcoal, which has a plurality of vascular bundles 111. The coating layer 12 is coated with a metal coating on an inner surface of each vascular bundle, where the metal coating is made of metal or an alloy of metal; and the metal is nickel (Ni), chromium (Cr), copper (Cu), aluminum (Al) or zinc (Zn). The abrasive particles 13 are uniformly distributed in the metal coating. Since the vascular bundles 111 are well arranged in the carrier 11, the sectional surface of bamboo charcoal composite abrasive material 1 has well-arranged abrasive particles 13. Therein, each abrasive particle 13 has a size ranged from 0.1 micro-meter (μm) to 10 μm; and is made of diamond, silicon carbide (SiC), cubic boron nitride (CBN) and aluminum oxide (Al2O3).
In
(a) Providing carrier 21: A bamboo charcoal carrier 11 having vascular bundles 111 is provided.
(b) Forming carrier 22: The carrier 11 is processed into a certain length and a sectional end surface of the carrier 11 is grinded to obtain a flow entry plane.
(c) Releasing air 23: The carrier 11 is sunk into a solution; and air in the vascular bundles of the carrier 11 is released through ultrasonic vibration for infiltration to greatly reduce clogging in the vascular bundles.
(d) Providing solution 24: A tank is provided, where the tank contains a solution of a metal coating which is uniformly distributed with abrasive particles 13.
(e) Transferring abrasive particles 25: The abrasive particles 13 are transferred into the vascular bundles of the carrier 11 by fluid pressure.
(f) Fixing abrasive particles 26: A coating layer of the metal coating is deposited on inner surface of each vascular bundle of the carrier 11 to fix the abrasive particles on the vascular bundles. Thus, a bamboo charcoal composite abrasive material 1 is fabricated.
Therein, a cleansing process to the vascular bundles is further comprised in each step of step (c) to step (f).
The bamboo charcoal carrier 11 having vascular bundles 111 may obtain its shape and size through turning, milling, clamping, shaving, sawing, grinding, etc. The bamboo charcoal carrier 11 is shaped through cutting and grinding according to the present invention. Therein, the bamboo charcoal carrier 11 is roughly processed to a certain size at first; and then is finished to obtain a flow entry plane 112 of a sectional end surface.
Please further refer to
Or, for a conductive or non-conductive bamboo charcoal carrier 11, an electroless deposition system (not shown in the figures) is used to obtain a bamboo charcoal composite abrasive material 1. On using the system, a plastic tube is covered at outside of the carrier 11 to pass a solution for coating with the abrasive particles 13 through electroless plating, where the abrasive particle has a size of 2˜4 μm. After the abrasive particles 13 are deposited and fixed on inner surfaces of the vascular bundles 111 of the carrier 11, the carrier 11 is washed to clean out the solution left on surface. Thus, the bamboo charcoal composite abrasive material 1 is obtained.
Or, for a conductive or non-conductive bamboo charcoal carrier 11, a resin-mixed abrasive packing system (not shown in the figures) may be used to obtain a bamboo charcoal composite abrasive material 1. On using the system, a plastic tube is covered at outside of the carrier 11 to pass a solution of resin-mixed abrasive for coating with the abrasive particles 13 having a size of 2˜4 μm. After the abrasive particles 13 are deposited and fixed on inner surfaces of the vascular bundles 111 of the carrier 11 through heating up, the carrier 11 is washed to clean out the solution left on surface. Thus, the bamboo charcoal composite abrasive material 1 is obtained.
With the vascular bundles of the bamboo charcoal carrier 11, the abrasive particles 13 are transferred to form a coating layer through depositing, where the abrasive particles 13 are uniformly distributed for grinding and lubricating with self-sharpening. Thus, a bamboo charcoal composite abrasive material is obtained through easy fabricating process with low cost and high quality.
On using, the bamboo charcoal composite abrasive material 1 is pressed on a surface of an object to process with the abrasive particles. At the moment, powders may be fallen off for polishing with self-lubricating. Then, new abrasive particles are revealed for self-sharpening. Thus, the novel material according to the present invention is used for polishing and deburring.
Please refer to
To sum up, the present invention is a bamboo charcoal composite abrasive material and a method of fabricating the same, where a composite abrasive material has abrasive particles uniformly distributed for grinding and lubricating with self-sharpening; and the bamboo charcoal composite abrasive material is obtained through easy fabricating process with low cost and high quality.
The preferred embodiment herein disclosed is not intended to unnecessarily limit the scope of the invention. Therefore, simple modifications or variations belonging to the equivalent of the scope of the claims and the instructions disclosed herein for a patent are all within the scope of the present invention.
| Number | Date | Country | Kind |
|---|---|---|---|
| 098118529 | Jun 2009 | TW | national |
