Super-hard grinding tool of inorganic and organic composite binder and preparation method of super-hard grinding tool

A composite binder and superhard abrasive technology, which is applied in the direction of grinding/polishing equipment, abrasives, grinding devices, etc., to achieve good mechanical properties, improved wear resistance, and improved bending strength

Active Publication Date: 2015-06-03
珠海泰达砂轮有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are very few studies on organic polymer resins and phosphates at home and abroad, especially the research on a composite adhesive that has both the good a

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0015] Example 1

[0016] Taken by volume: 30% phenolic resin powder, 11% aluminum phosphate solution, 17% copper oxide curing agent, filler α-Al 2 O 3 17%, synthetic diamond (particle size 230 / 270) 25%.

[0017] Fully wet the synthetic diamond abrasive and aluminum phosphate, then mix the curing agent, filler and the wetted synthetic diamond abrasive uniformly, and finally add the phenolic resin to mix evenly; put the uniformly mixed material into the mold and place it on the hot press at 180 Carry out hot press molding at ℃ for 40min, and the pressing pressure is 10MPa. After unloading the mold, place the abrasive tool in a blast drying oven and cure at 60℃ for 2h, 90℃ for 2h, 110℃ for 1.5h, 120℃ for 2.5h, 140 Curing at 1h at ℃, 1h at 160℃, and 4h at 180℃ for curing.

Example Embodiment

[0018] Example 2

[0019] Take volume ratio: 40% polyimide resin powder, 10% aluminum phosphate solution, 10% copper oxide curing agent, 15% silicon carbide filler, 25% cubic boron nitride (particle size 140 / 170).

[0020] Fully wet the cubic boron nitride abrasive and aluminum phosphate, then mix the curing agent, filler and the wet abrasive uniformly, and finally add the polyimide resin powder to mix evenly; put the uniformly mixed material into the mold and heat it Hot press molding is performed on the press at 230℃ for 40min, and the pressing pressure is 15MPa. After unmolding, put the abrasive tool into a blast drying oven and cure at 60℃ for 2h, 120℃ for 2h, 180℃ for 2h, 200℃ for 1h , Curing at 210°C for 1h and curing at 230°C for 4h.

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PUM

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Abstract

The invention discloses a super-hard grinding tool of an inorganic and organic composite binder and a preparation method of the super-hard grinding tool. The super-hard grinding tool is characterized by being prepared by the following materials in percentage by volume: 10%-30% of super-hard grinding material, 30%-50% of thermosetting resin powder, 8%-12% of phosphate binder, 10%-29% of curing agent and 10%-29% of filler. The preparation method comprises the following steps of carrying out hot press molding after the composite binder and the grinding material are uniformly mixed, and then curing to obtain the super-hard grinding tool of the composite binder. Compared with a super-hard grinding tool of a resin binder, the super-hard grinding tool prepared by the preparation method has higher strength and higher heat resistance, and meanwhile, the super-hard grinding machine has good grinding performance.

Description

technical field [0001] The invention relates to a superhard abrasive tool with an inorganic and organic composite binder and a preparation method thereof. Background technique [0002] Compared with vitrified bonded abrasives and metal bonded abrasives, superhard material resin bonded abrasives do not have high requirements on abrasives, so diamonds with poorer crystal grades can be used as abrasives, and they have Good self-sharpening, with the advantages of simple manufacturing process and low cost, and suitable for processing various materials such as hard alloy, glass, ceramics, and stone. [0003] Phosphate is an important inorganic polymer material, which has the characteristics of both metal and ceramic materials, and has good high temperature chemical stability. At present, there are very few studies on organic polymer resins and phosphates at home and abroad, especially the research on a composite adhesive that has both the good adhesion of organic resins and the e...

Claims

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Application Information

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IPC IPC(8): B24D3/02B24D3/34B24D18/00
CPCB24D3/02B24D3/342B24D18/0009
Inventor 张琳琪董会娟彭进赵芬芬候永改
Owner 珠海泰达砂轮有限公司
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