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Diamond strong slotted grinding wheel specially used for copper-powder-based numerical control grinder

A CNC grinding machine and diamond technology, applied in abrasives, metal processing equipment, manufacturing tools, etc., can solve the problems of affecting the retention of the grinding wheel profile, reducing the machining accuracy of the grinding wheel, poor heat dissipation performance, etc., reducing the number of grinding wheel corrections, grinding wheel The effect of prolonging the life and increasing the depth of the groove

Inactive Publication Date: 2009-10-07
苏州赛尔科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of these two substrates are: when the CNC grinding machine, especially the multi-axis linkage CNC grinding machine, performs high-speed slotting processing, the grinding temperature is too high due to poor heat dissipation, which affects the surface retention of the grinding wheel and reduces the wear resistance of the grinding wheel. Processing accuracy, grinding efficiency and service life

Method used

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  • Diamond strong slotted grinding wheel specially used for copper-powder-based numerical control grinder
  • Diamond strong slotted grinding wheel specially used for copper-powder-based numerical control grinder
  • Diamond strong slotted grinding wheel specially used for copper-powder-based numerical control grinder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A substrate for a diamond grooved grinding wheel dedicated to a CNC grinding machine, the components and contents of which are:

[0034] Polyimide resin powder 20%

[0035] Copper (Cu) powder 60%

[0036] Tin (Sn) powder 18%

[0037] Phenolic resin solution 2%

[0038] The above percentages are percentages by weight;

[0039] Described polyimide resin powder technical condition is:

[0040] Appearance: yellow superfine powder

Density: 1.3g / cm 3

Content: ≥99%

Melting point: 135~145℃

Purity: 99%

Martin heat resistance temperature: 260°C

Tensile strength: 113.4MPa

Average particle size: 30~40μm

Softening point: 110~120℃

Curing temperature: 230°C

Water absorption: 0.2~0.3%

Bending strength: >1000MPa

[0041] Described copper (Cu) powder technical condition is:

[0042]

[0043]

[0044] The technical conditions of the tin (Sn) powder are: the Sn content is greater than or equal to 99%, and the pa...

Embodiment 2

[0047] A substrate for a diamond grooved grinding wheel dedicated to a CNC grinding machine, the components and contents of which are:

[0048] Polyimide resin powder 20%

[0049] Copper (Cu) powder 57%

[0050] Tin (Sn) powder 20%

[0051] Phenolic resin solution 3%

[0052] The above percentages are percentages by weight;

[0053] Described polyimide resin powder technical condition is:

[0054] Appearance: yellow superfine powder

Density: 1.3g / cm 3

Content: ≥99%

Melting point: 135~145℃

Purity: 99%

Martin heat resistance temperature: 260°C

Tensile strength: 113.4MPa

Average particle size: 30~40μm

Softening point: 110~120℃

Curing temperature: 230°C

Water absorption: 0.2~0.3%

Bending strength: >1000MPa

[0055] Described copper (Cu) powder technical condition is:

[0056]

[0057] The technical conditions of the tin (Sn) powder are: the Sn content is greater than or equal to 99%, and the particle size ...

Embodiment 3

[0065] Embodiment three: the method for preparing copper powder-based grinding wheel by using the substrate of embodiment one or embodiment two is prior art, and its process flow chart is as attached image 3 As shown, the specific steps are:

[0066] (1) Mixing: Put the abrasive (diamond or cubic boron nitride) and auxiliary materials (green or black silicon carbide) weighed in proportion into the mixer, add a wetting agent and mix evenly, and then mix the binder and resin The solution is slowly put in separately until it is fully mixed, and after passing the inspection, put it into the container for later use;

[0067] (2) Forming: Put the prefabricated copper powder matrix in the mold, then slowly put the mixed molding material into the mold, scrape it flat, and place it on the operating table of the hydraulic press, at a maximum temperature of 230°C, Hot pressing to the set height or flattening (during fixed mold molding).

[0068] (3) Sintering: Put the pressed grinding...

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Abstract

The invention discloses a copper powder substrate of a diamond strong slotted grinding wheel specially used for a numerical control grinder, comprising the following compositions and contents by weight percentage: 15-20% of polyimide resin powder, 50-60% of copper (Cu) powder, 10-20% of tin (Sn) powder and 2-3% of phenol formaldehyde resin liquid; the copper powder substrate obtained by the above formula has excellent heat dissipation performance and excellent strength and rigidity, and can be perfectly combined with the novel grinding wheel formula; when the diamond grinding wheel adopting the substrate is used for a five-axis linked numerical control grinder, the strong slotting is realized, the slotting depth of the grinding wheel is obviously improved, the correcting times of the grinding wheel is reduced, the working efficiency is improved by 25% and the service life of the grinding wheel is prolonged by more than 15%.

Description

technical field [0001] The invention relates to a special diamond grooved grinding wheel for a numerical control grinding machine, in particular to a copper powder matrix formula of the diamond grooved grinding wheel. Background technique [0002] Traditional slotted grinding wheels for CNC grinding machines are all aluminum substrates or bakelite substrates. The disadvantages of these two substrates are: when CNC grinding machines, especially multi-axis linkage CNC grinding machines, perform high-speed slotting processing, the grinding temperature is too high due to poor heat dissipation performance, which affects the surface retention of the grinding wheel and reduces the wear resistance of the grinding wheel. Excellent machining accuracy, grinding efficiency and service life. Contents of the invention [0003] The object of the present invention is to provide a kind of base body of diamond grooved emery wheel special for numerical control grinding machine, guarantee go...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D3/00
Inventor 王凯平王照
Owner 苏州赛尔科技有限公司
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