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Preparation method of composite binding agent diamond grinding wheel

A composite bond and diamond grinding wheel technology, which is applied in metal processing equipment, manufacturing tools, grinding/polishing equipment, etc., can solve the problems of poor surface retention, non-use of CNC grinding machines, and low grinding efficiency. Achieve the effect of good self-sharpening, good self-sharpening and high grinding efficiency

Active Publication Date: 2014-02-26
CHANGSHU JULI GRINDING WHEEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The resin bonded diamond grinding wheel has high grinding efficiency and good self-sharpening, but its rigidity is insufficient, heat resistance is low, and the shape retention is not good, which inhibits the performance of the CNC grinding machine
Metal-bonded diamond grinding wheels have good rigidity, heat resistance and surface retention, but they are not easy to dress and have relatively low grinding efficiency, so they are not used in CNC grinding machines

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A preparation method of a composite bond diamond grinding wheel, comprising the steps of:

[0016] 1) Take 1 mass part of phosphorus powder, 10 mass parts of polyimide resin powder, 8 mass parts of tin powder, 35 mass parts of copper powder, 9 mass parts of lead powder, and 2 mass parts of zinc powder, and mix them in a mixer for 25 Pass through a 325-mesh standard sieve after 1 hour to obtain a composite binder;

[0017] 2) Put 10 parts by mass of diamond abrasive and 25 parts by mass of composite binder into the mixer and mix for 3 hours, then slowly add 1.5 parts by mass of acrylic emulsion and continue mixing for 4 hours, and then pass through a 70-mesh standard sieve to obtain the grinding wheel mixture ;

[0018] 3) Put the processed steel matrix into the mold first, then put the grinding wheel mixture into the mold gently and evenly and scrape it flat, put it into the fixed mold of the hydraulic press for hot pressing, the temperature is 240°C, the pressure is 1...

Embodiment 2

[0022] A preparation method of a composite bond diamond grinding wheel, comprising the steps of:

[0023] 1) Take 2 parts by mass of phosphorus powder, 15 parts by mass of polyimide resin powder, 10 parts by mass of tin powder, 40 parts by mass of copper powder, 11 parts by mass of lead powder, and 4 parts by mass of zinc powder, and mix them in a mixer for 30 Pass through a 325-mesh standard sieve after 1 hour to obtain a composite binder;

[0024] 2) Put 14 parts by mass of diamond abrasive and 45 parts by mass of composite binder into the mixer and mix for 5 hours, then slowly add 2 parts by mass of acrylic emulsion and continue mixing for 6 hours, and then pass through a 70-mesh standard sieve to obtain the grinding wheel mixture ;

[0025] 3) Put the processed steel matrix into the mold first, then put the grinding wheel mixture into the mold evenly and flatten it, put it into the fixed mold of the hydraulic press and press it at a temperature of 245°C and a pressure of ...

Embodiment 3

[0029] A preparation method of a composite bond diamond grinding wheel, comprising the steps of:

[0030] 1) Take 1.5 parts by mass of phosphorus powder, 13 parts by mass of polyimide resin powder, 9 parts by mass of tin powder, 37 parts by mass of copper powder, 10 parts by mass of lead powder, and 3 parts by mass of zinc powder, and mix them in a mixer for 27 Pass through a 325-mesh standard sieve after 1 hour to obtain a composite binder;

[0031] 2) Put 13 parts by mass of diamond abrasive and 35 parts by mass of composite binder into the mixer and mix for 4 hours, then slowly add 1.7 parts by mass of acrylic emulsion and continue mixing for 5 hours, and pass through a 70-mesh standard sieve to obtain the grinding wheel mixture ;

[0032] 3) Put the processed steel matrix into the mold first, then put the grinding wheel mixture into the mold evenly and flatten it, put it into the fixed mold of the hydraulic press for hot pressing, the temperature is 243°C, the pressure is...

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PUM

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Abstract

The invention discloses a preparation method of a composite binding agent diamond grinding wheel. The method includes the steps of firstly, mixing, by weight, 1-2 parts of phosphorus powder, 10-15 parts of polyimide resin powder, 8-10 parts of tin powder, 35-40 parts of copper powder, 9-11 parts of lead powder and 2-4 parts of zinc powder, and then sieving with a 325-mesh standard sieve to obtain composite binding agent; secondly, mixing, by weight, 10-14 parts of diamond grinding material and 25-45 parts of composite binding agent in a mixing machine, adding, by weight, 1.5-2 parts of acrylic emulsion to continue mixing, and sieving with a 70-mesh standard sieve to obtain grinding wheel mixture; thirdly, placing a steel substrate in a die, filing the grinding wheel mixture in the die, and hot pressing in a hydraulic machine to obtain grinding wheel blank; fourthly, sintering the grinding wheel blank in a sintering furnace; fifthly, machining the sintered grinding wheel blank on a lathe and a grinding machine to obtain the fished composite binding agent diamond grinding wheel. The diamond grinding wheel prepared by the method is high in grinding efficiency, good in self-sharpness, high in rigidity, high in heat resistance, and good in profile maintaining.

Description

technical field [0001] The invention relates to a preparation method of a composite bond diamond grinding wheel. Background technique [0002] The grinding wheels traditionally used in CNC grinding machines are usually resin bonded diamond grinding wheels, while CNC grinding machines require diamond grinding wheels with high speed, high efficiency, heat resistance, high precision and good shape and surface retention. The resin bonded diamond grinding wheel has high grinding efficiency and good self-sharpening, but its rigidity is insufficient, heat resistance is low, and the shape retention is not good, which inhibits the performance of the CNC grinding machine. Metal-bonded diamond grinding wheels have good rigidity, heat resistance and surface retention, but they are not easy to dress and have relatively low grinding efficiency, so they are not used in CNC grinding machines. Contents of the invention [0003] The object of the present invention is to provide a method fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D3/02B24D18/00
Inventor 邵国良
Owner CHANGSHU JULI GRINDING WHEEL
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