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Process method for high-precision mechanical accessory part polishing

A technology of mechanical parts and process methods, applied in the field of parts processing, can solve problems such as unfavorable polishing quality, deep damage to the polished surface, and deep damage layer, so as to improve corrosion resistance and rust resistance, reduce surface roughness, and make raw materials environmentally friendly. The effect of pollution

Inactive Publication Date: 2020-08-21
宏明金属科技(无锡)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] High-precision mechanical supporting parts are mostly used in aerospace and automobile ships. The precision of the parts will affect the entire operation of the device. However, the surface roughness of the high-precision mechanical supporting parts obtained by the existing polishing process method is too large to meet the requirements of use. Among them, due to the unreasonable formulation of the polishing liquid used for high-precision mechanical parts, the surface of the polished part is uneven and smooth, and the damage layer is deep, resulting in large errors. Unreasonable particle size design can easily lead to embedded polishing particles on the surface, which will adversely affect the polishing quality. Therefore, we propose a polishing process for high-precision mechanical parts

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] S1. Surface treatment: Place the high-precision mechanical parts that need to be polished on the workbench, first clean up the metal debris and sundries stuck on the surface of the high-precision mechanical parts, and rinse them with clean water after cleaning ,dry;

[0020] S2. Chemical treatment: Spray acidic solution on the surface of high-precision mechanical parts, let it stand for 5 to 10 minutes, rinse with acidic solution, rinse with clean water, and dry;

[0021] S3. Mechanical polishing: Spray polishing liquid on the surface of high-precision mechanical parts, rotate the mechanical grinding wheel at a speed of 200r / min, and polish the surface of high-precision mechanical parts until the surface roughness of high-precision mechanical parts is Ra0. 1-0.2mm to stop the polishing process, clean up the metal debris and sundries produced on the surface of the high-precision mechanical parts every 15 minutes during the polishing process, and spray the polishing liqui...

Embodiment 2

[0024] Except that the composition of the raw materials of the polishing liquid is different, the others are the same as in Example 1.

[0025] The polishing liquid, according to the total weight of 100%, includes the following raw materials in parts by weight: sodium tetraborate 6%, benzisothiazolinone 1.0%, sodium dodecylsulfonate 5%, diamond composite abrasive 6%, Perfluoroalkyl polyoxyethylene ether 1.8%, modified cubic boron nitride 1.5%, polyether modified silicone oil 1.0%, and the balance is water.

Embodiment 3

[0027] Except that the composition of the raw materials of the polishing liquid is different, the others are the same as in Example 1.

[0028] The polishing liquid comprises the following raw materials according to the total weight of 100%: sodium tetraborate 5%, benzisothiazolinone 0.4%, sodium dodecylsulfonate 3%, diamond composite abrasive 4%, all 1.2% of fluoroalkyl polyoxyethylene ether, 1% of modified cubic boron nitride, 0.2% of polyether modified silicone oil, and the balance is water.

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PUM

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Abstract

The invention discloses a process method for high-precision mechanical accessory part polishing. The process method comprises the following steps of S1, surface treating; S2, chemical treating; and S3, mechanical polishing, specifically, polishing liquid is sprayed on the surface of a high-precision mechanical accessory part, a mechanical grinding wheel rotates to perform polishing treatment on the surface of the high-precision mechanical accessory part until the surface roughness of the high-precision mechanical accessory part is Ra 0.1-0.2 mm to stop the polishing treatment, wherein with thetotal weight part being 100%, the polishing liquid comprises the following raw materials of, by weight, 2-8% of sodium tetraborate, 0.4-1.5% of benzisothiazolinone, 3-10% of sodium lauryl sulfonate,1.5-6% of diamond compound abrasive, 1.0-1.8% of perfluoroalkyl polyoxyethylene ether, 1-3% of modified cubic boron nitride, 0.2-1.0% of polyether modified silicone oil and the balance water. By meansof the process method for the high-precision mechanical accessory part polishing, the dimensional precision and the appearance of the high-precision mechanical accessory part will not be changed after the polishing is performed, the gloss is significantly improved, and meanwhile, the part surface roughness is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of parts processing, in particular to a polishing process for high-precision mechanical supporting parts. Background technique [0002] Polishing is currently the main method to increase the surface finish of parts and reduce roughness. At present, the commonly used polishing methods for metal parts are roughly as follows: (1) the more important parts are manually polished with abrasive materials and electric tools; (2) when there are fewer burrs, use current The microscopic protrusions on the surface of the material are corroded in the electrolyte; (3) Vibration polishing is used for parts that are not strictly required to be easily deformed. [0003] High-precision mechanical supporting parts are mostly used in aerospace and automobile ships. The precision of the parts will affect the entire operation of the device. However, the surface roughness of the high-precision mechanical supporting parts obtained b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B1/00C23G1/02C09G1/02
CPCB24B1/00C09G1/02C23G1/02
Inventor 王根义宋雨生
Owner 宏明金属科技(无锡)有限公司
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