Diamond resin grinding tool and preparation method thereof

A diamond and resin technology, which is applied in the field of diamond resin abrasive tools and its preparation, can solve the problems of high moisture content, need for post-curing, difficult demoulding, etc., and achieve the effect of less internal defects, high yield, and not easy to crack

Active Publication Date: 2014-07-16
泉州金山石材工具科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method uses liquid resin, which has a high moisture content and is not easy to demould. At the same time, post-curing is required after molding, which takes a long time.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0032] The present invention also relates to one of the preparation method of above-mentioned a kind of diamond resin abrasive tool, described method step is as follows:

[0033] Step 1, mixing solid phenolic resin powder and filler at high speed to form a powdery mixture;

[0034] Step 2, putting the powdery mixture into a heated open double-roll plastic refining machine for plastic refining to form a sheet;

[0035] Step 3, pulverizing the sheet and passing through a 120-mesh sieve to form sheet powder;

[0036] Step 4. After adding diamonds with a particle size of more than 10 microns to the sheet powder, put it into a ball mill and grind for 15 to 24 hours;

[0037] Step 5. Finally, put it into the mold and mold it for molding. After demoulding, it will be the finished diamond resin abrasive tool.

[0038] In one of the above-mentioned methods, the mixing speed in step one is 800 rpm, and the mixing time is 5 to 10 minutes; The temperature is 120°C~140°C, and the thickn...

Embodiment 1

[0047] Step 1, put 300g of solid phenolic resin powder, 400g of copper powder, 70g of zinc oxide, 38g of graphite, and 36g of cryolite into a mixer for high-speed mixing at a speed of 800 rpm for 5 minutes to form a powdery mixture;

[0048] Step 2. Then put it into a heated open double-roller plastic refiner for plastic refining. The temperature of the front roller of the open-type double-roller plastic refiner is 100°C, the temperature of the rear roll is 120°C, and the thickness of the rolled sheet is 1mm ;

[0049] Step 3, crushing the sheet, passing through a 120-mesh sieve to form a sheet powder, and continuing to crush the particles exceeding 120 mesh until passing through a 120-mesh sieve;

[0050] Step 4, after adding 120 g of diamonds with a particle size greater than 10 microns to the above sheet powder, put it into a ball mill for grinding;

[0051] Step 5. Finally, put it into the mold for compression molding. The mold temperature is 180±10°C and the pressure is ...

Embodiment 2

[0053] Step 1, 540g of solid phenolic resin powder, 600g of iron powder, 90g of zinc oxide, 50g of graphite, and 50g of cryolite are put into a mixer and mixed at a high speed of 800 rpm for 10 minutes to form a powdery mixture;

[0054] Step 2. Then put it into a heated open double-roller plastic refiner for plastic refining. The temperature of the front roller of the open-type double-roller plastic refiner is 110°C, the temperature of the rear roll is 140°C, and the thickness of the rolled sheet is 2mm ;

[0055] Step 3, crushing the sheet, passing through a 120-mesh sieve to form a sheet powder, and continuing to crush the particles exceeding 120 mesh until passing through a 120-mesh sieve;

[0056] Step 4, after adding 160g of diamonds with a particle size of 10 microns to the above sheet powder, put it into a ball mill for grinding;

[0057] Step 5. Finally, put it into the mold for compression molding. The mold temperature is 180±10°C and the pressure is 10kg / m 2 , the...

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Abstract

The invention provides a diamond resin grinding tool and a preparation method thereof. The grinding tool comprises the following components by weight percent: 25%-45% of solid phenolic resin powder, 30-50% of copper powder or iron powder, 5-10% of zinc oxide, chromium oxide or iron trioxide, 3-5% of graphite, 3-5% of kryocide and 5-15% of diamond. The diamond resin grinding tool comprises the following steps of mixing the solid phenolic resin powder with filer at high speed so as to form a powdered mixture; then putting the mixture on a heated opening type double-roller plastic refining machine for plastic refining to form a sheet; grinding and screening with a 120-mesh sieves to form sheet powder; further adding diamond, putting the sheet powder and the diamond into a ball mill for grinding; finally, putting into a die for compression molding, and demolding to obtain a finished product. The grinding tool prepared by using the method is easy to demold, does not need post curing, and is short in production time and high in yield.

Description

【Technical field】 [0001] The invention relates to a diamond resin abrasive tool and a preparation method thereof. 【Background technique】 [0002] With the development and research of precision grinding machines in the field of mechanical processing, grinding tools with very fine abrasive grains, very uniform structures, and relatively complex shapes are required to match them. Due to the high quality requirements of precision machining, the surface roughness of the processed object is Ra≤10μm. The processing surface precision p-v150μm or less, no burns, no vibration lines, no scratches, no micro-cracks. Therefore, how to reduce the internal defects of the abrasive tool and ensure the uniformity of the abrasive tool structure is a key issue. [0003] For example, the Chinese patent application number 201210078255.0 discloses a method for preparing a resin-bonded diamond abrasive tool for precision grinding. First, surface-treat the diamond abrasive with a surfactant, and th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/14B24D18/00B29C43/58B29B7/72
Inventor 池守松陈永红
Owner 泉州金山石材工具科技有限公司
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