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Preparation method of resin binder diamond abrasive product used for accurate grinding

A precision grinding and diamond technology, used in grinding/polishing equipment, grinding devices, metal processing equipment, etc., can solve the problems of complicated purchasing procedures, long delivery time, high price, uniform structure and less internal defects , the effect of high reliability

Active Publication Date: 2014-06-11
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, domestic abrasive tools for precision and ultra-precision machining mainly rely on imports, with high prices, long delivery times, and complicated purchase procedures

Method used

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  • Preparation method of resin binder diamond abrasive product used for accurate grinding
  • Preparation method of resin binder diamond abrasive product used for accurate grinding
  • Preparation method of resin binder diamond abrasive product used for accurate grinding

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Formed grinding wheel features: 5306-30×50×6-RVDM10 / 20B100

[0055] raw material

diamond

liquid polyimide

Nano

Cu powder

Cr 2 o 3

ZnO

[0056]

(10-20μm)

Amine resin

SiO 2

(15μm)

wt%

31

30

2

18

10

9

[0057] Carry out surface treatment to diamond abrasive with oleic acid, dosage is 3ml / kg diamond abrasive, carry out weighing and measuring according to the proportion, then add ball mill in the ball mill tank (15r / min) 0.5h, can obtain the diamond abrasive of surface treatment .

[0058] Calculate and weigh the raw materials according to the formula in the above table, and pre-mix them, then add them to a temperature-controlled mixing device, and heat-mix at a temperature of 80±5°C to form a uniform and plastic molding material.

[0059] Put the above molding material into the hot injection molding device, control the temperature of the molding material at...

Embodiment 2

[0062] Formed grinding wheel features: 6-10×6.5×4-2, 2-RVDM5 / 10B100

[0063]

[0064] Carry out surface treatment to diamond abrasive with oleic acid, consumption is 4ml / kg diamond abrasive, carry out weighing and measuring according to the proportion, then add ball mill in the ball mill tank (15r / min) 0.5h, can obtain the diamond abrasive of surface treatment .

[0065] Calculate and weigh the raw materials according to the formula in the above table, and pre-mix them, then add them to a temperature-controlled mixing device, and heat-mix at a temperature of 80±5°C to form a uniform and plastic molding material.

[0066] Place the above-mentioned molding material in a hot injection molding device, control the temperature of the material at 80±5°C and the mold temperature at 70±5°C, inject the molding material into the mold under a pressure of 0.5MPa, keep the temperature and pressure for 2 minutes, and finally take the mold Carry out the curing of the grinding wheel, the c...

Embodiment 3

[0068] Formed grinding wheel features: 6-10×6.5×4-2, 2-RVDM5 / 10B100

[0069]

[0070] Use a silane coupling agent to carry out surface treatment on the diamond abrasive, the amount of coupling agent is 2ml / kg abrasive, weigh and measure according to the proportion, add it to a beaker filled with an appropriate amount of toluene, and then carry out ultrasonic dispersion, and mix it after ultrasonic 20min The solution was transferred to a three-necked flask, passed through cooling water, heated to the reflux temperature of toluene for 3 hours, then cooled to room temperature, filtered, and dried at 80°C for 10 hours to obtain the treated diamond abrasive.

[0071] Calculate and weigh the raw materials according to the formula in the above table, and pre-mix them, then add them to a temperature-controlled mixing device, and heat-mix at a temperature of 70±5°C to form a uniform and plastic molding material.

[0072] Place the above-mentioned molding material in a hot injection ...

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Abstract

The invention discloses a preparation method of a resin binder diamond abrasive product used for accurate grinding. The preparation method comprises the following steps: firstly, surface treatment is carried out on diamond abrasive material by a surfactant, the diamond abrasive material is pre-mixed with liquid resin, filler and the like, then the mixture is added into a material mixing device with accurate temperature control, and thermal mixing is carried out on the mixture at a certain temperature, so that uniform forming material with better plasticity is formed, finally, the forming material is poured into a grinding wheel forming die at a certain temperature and under a certain pressure and then is solidified under a certain condition, so that the resin binder diamond abrasive product is prepared. The resin binder diamond abrasive product prepared in the invention has the advantages that the tissues are uniform, the internal defects are less, the reliability is high, and the like, and therefore, the preparation method is particularly suitable for preparing diamond grinding wheels with fine granularity and super fine granularity in complex shapes.

Description

technical field [0001] The invention relates to a method for preparing a resin bonded diamond grinding tool for precision grinding. 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 grinding wheel and ensure the uniformity of the grinding wheel structure is a key issue. [0003] At present, domestic abrasive tools for precision and ultra-precision machining mainly rely on imports, with high prices, long delivery times, and complicated purchase procedures. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24D3/28B24D18/00
Inventor 万隆王俊沙宋冬冬时丹
Owner HUNAN UNIV