SUPERHARD MATERIAL ABRASIVE BELT FOR GRINDING AND POLISHING AND PREPARATION METHOD AND USE THEREOF

Abstract

A superhard material abrasive belt for grinding and polishing and a preparation method and use thereof are disclosed. The superhard material abrasive belt includes a lining cloth layer, an electroplating substrate, which is above the lining cloth layer, a grinding unit, which is on the electroplating substrate, a binder layer, which is between the electroplating substrate and the lining cloth layer, and a modified resin layer, which is arranged in the gap between the grinding units on the electroplating substrate.

Claims

1. A superhard material abrasive belt for grinding and polishing, comprising: a lining cloth layer; an electroplating substrate, which is above the lining cloth layer; a grinding unit, which is on the electroplating substrate; a binder layer, which is between the electroplating substrate and the lining cloth layer; and a modified resin layer, which is arranged in the gap between grinding units on the electroplating substrate.

2. The superhard material abrasive belt for grinding and polishing as claimed in claim 1, wherein the modified resin layer is a polyurethane binder layer.

3. The superhard material abrasive belt for grinding and polishing as claimed in claim 2, wherein the grinding unit comprises a diamond abrasive unit and a CBN abrasive unit, and the grinding units are arranged in an orderly manner.

4. The superhard material abrasive belt for grinding and polishing as claimed in claim 3, wherein both of the diamond abrasive unit and the CBN abrasive unit have a particle size of 400-5000 mesh.

5. A process for preparing the superhard material abrasive belt for grinding and polishing as claimed in claim 1, comprising: (1) preparing a polyurethane binder: adding polyurethane to cerium oxide at ambient temperature, mixing with a electric stirrer to be uniform, adding a curing agent and stirring to be uniform, to obtain the polyurethane binder, wherein the dosage ratio of polyurethane, the curing agent, and cerium oxide is 100:15:30; (2) feeding the polyurethane binder obtained in step (1) into a spreader, blade coating the polyurethane binder into the gap between the grinding units arranged in an orderly manner on a first electroplating abrasive belt, wherein the first electroplating abrasive belt comprises: a lining cloth layer; an electroplating substrate, which is above the lining cloth layer; a grinding unit, which is on the electroplating substrate; and a binder layer, which is between the electroplating substrate and the lining cloth layer; and (3) covering the polyurethane binder coated in step (2) with a layer of anti-sticking cloth, putting into a platen press and heating to 80° C., maintaining at 80° C. for 1 hour, and taking out, to obtain the superhard material abrasive belt for grinding and polishing.

6. A method for fine and ultra-fine grinding and polishing a difficult-to-grind material, comprising: using the superhard material abrasive belt for grinding and polishing as claimed in claim 1.

Description

BRIEF DESCRIPTION OF THE FIGURES

[0024] FIGS. 1A and 1B show structure schematic diagrams of superhard material abrasive belts with and without a polyurethane binder layer, respectively.

[0025] In FIGS. 1A and 1B, 1 represents a lining cloth layer, 2 represents an electroplating substrate, 3 represents a grinding unit, and 4 represents a modified resin layer.

[0026] In the FIGURE, 1 represents a lining cloth layer, 2 represents an electroplating substrate, 3 represents a grinding unit, and 4 represents a modified resin layer.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] As shown in FIGS. 1A and 1B, a superhard material abrasive belt for grinding and polishing comprises a lining cloth layer; an electroplating substrate, which is above the lining cloth layer; a grinding unit, which is arranged on the electroplating substrate, and consists of a diamond abrasive grinding unit and a CBN abrasive grinding unit, wherein the diamond abrasive grinding unit and the CBN abrasive grinding unit are arranged in an orderly way, and have a size of 400-5000 mesh; a binder layer, which is between the electroplating substrate and the lining cloth layer; and a modified resin layer, which is provide in the gap between the grinding units on the electroplating substrate, wherein the modified resin layer is a polyurethane binder layer.

[0028] A process for preparing the superhard material abrasive belt for grinding and polishing is provided. In some embodiments, the process was performed according to the following procedure:

[0029] (1) Preparation of a polyurethane binder: polyurethane was added to cerium oxide at ambient temperature, and they were mixed with a electric stirrer to be uniform; a curing agent was added and the resulting mixture was stirred to be uniform, obtaining the polyurethane binder, wherein the dosage ratio of polyurethane, the curing agent, and cerium oxide was 100:15:30.

[0030] (2) The polyurethane binder obtained in step (1) was added into a spreader, and the polyurethane binder was blade coated into the gap between the grinding units arranged in an orderly manner on a first electroplating abrasive belt, wherein the first electroplating abrasive belt comprises a lining cloth layer; an electroplating substrate, which is above the lining cloth layer, a grinding unit, which is on the electroplating substrate, and a binder layer, which is between the electroplating substrate and the lining cloth layer; because the heights of the grinding units were the same, and the gaps were uniform, the fillings of polyurethane were also uniform.

[0031] (3) The polyurethane binder coated in step (2) was covered with a layer of anti-sticking cloth, put into a platen press and heated to 80° C., maintained at 80° C. for 1 hour, and then it was taken out of the platen press, obtaining the superhard material abrasive belt for grinding and polishing.

[0032] Use of the superhard material abrasive belt for grinding and polishing, for fine and ultra-fine grinding and polishing a difficult-to-grind material such as stone, titanium alloy and superalloy is provided.