Manufacturing process of nubuck used for polishing precision instruments and electrical products

A technology for electrical products and precision instruments, applied in the field of leather for grinding, which can solve the problems of low accuracy, easily damaged instruments by sandpaper, and high scrap rate of finished products

Active Publication Date: 2014-02-05
FUJIAN TOPSUN MICROFIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, sandpaper is still the main method of polishing precision instruments and electronic products, but sandpaper is easy to damage the instrument, the scrap rate of finished products is high, and the accuracy is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A manufacturing process of a nib for polishing precision instruments and electrical products, comprising the following steps:

[0015] (1) Infiltrate the non-woven fabric with a grammage of 220g / ㎡ and a thickness of 0.95 at a linear speed of 8m / min, then squeeze it dry with a pressure of 4kg, and iron it flat; the impregnated material is made of PU resin, two Composition of methyl formamide and pigment, the weight ratio is 100:400:2;

[0016] (2) Pass the non-woven fabric treated in step (1) through a coating head to coat a layer of coating material with a viscosity of 10000cps on the substrate; the coating material is made of PU resin, dimethylformamide, Composition of colorants, the weight ratio is 100:45:1;

[0017] (3) The non-woven fabric substrate treated in step (2) is sequentially solidified and washed through a coagulation tank and a washing tank, and the coagulation tank and the washing tank are respectively equipped with dimethylformamide solution and fresh ...

Embodiment 2

[0021] As described in embodiment 1, a kind of manufacturing process of precision instrument and electric product polishing with nibbar,

[0022] The grammage and thickness of the non-woven fabric described in step (1) are prepared using the following two sets of data respectively:

[0023] Gram weight: 230 g / ㎡, 240 g / ㎡, 250 g / ㎡;

[0024] Thickness: 0.96mm, 0.98mm, 1.0mm.

[0025] Tests show that the gram weight and thickness of the microfiber non-woven fabric are between 220-250g / ㎡ and 0.95-1.0mm, and the made nubs can all achieve the purpose of the present invention.

Embodiment 3

[0027] As described in embodiment 1, a kind of manufacturing process of precision instrument and electric product polishing with nibbar,

[0028] In step (1), the linear speed of the impregnated non-woven fabric is controlled at 8.1 m / min, 8.2 m / min, 8.3 m / min, 8.4 m / min, 8.5 m / min, 8.6 m / min, 8.7 m / min, 8.8 m / min, 8.9 m / min, 9 m / min.

[0029] The test shows that when the linear speed of the microfiber non-woven fabric is controlled at 8.2-8.8 m / min, the effect is the best; Reach the object of the present invention.

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PUM

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Abstract

The invention discloses a manufacturing process of nubuck used for polishing precision instruments and electrical products. The method comprises the steps of: firstly, passing a non-woven fabric substrate through an impregnation material and a coating head at a linear speed of 8-9m/min, impregnating the impregnation material and coating a layer of coating material, and then passing the non-woven fabric substrate through a coagulation tank and a washing tank to undergo curing and washing treatment, then performing drying and shaping so as to obtain a wet nubuck semi-finished product; and then subjecting the prepared wet nubuck semi-finished product into a No.1 grinding head to undergo grinding, thus obtaining the finished product. Special resin is employed in the invention to adjust the formula, so that the obtained nubuck has a foam structure with fixed fineness and length, and has stable grinding force and wear resistance.

Description

technical field [0001] The invention relates to a production method of leather for polishing, in particular to a leather for polishing used in precision instruments and electronic products. Background technique [0002] At present, sandpaper is still the main method for polishing precision instruments and electronic products, but sandpaper is easy to damage the instrument, and the scrap rate of finished products is high, and the accuracy is low. Contents of the invention [0003] In order to overcome the above problems, the present invention provides a new application of a nipple, which can not only reduce the scrap rate of finished products, but also make the surface of the instrument more detailed and improve the accuracy. [0004] To achieve the above object, the technical solution of the present invention is: [0005] (1) Infiltrate the non-woven fabric with a weight of 220-250g / ㎡ and a thickness of 0.95-1.0mm with the impregnated material at a linear speed of 8-9m / mi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/14B32B27/18B32B27/40B32B37/00B32B38/00C09D175/04C09D7/12
Inventor 丁惠阳张哲黄冬梅黄建军
Owner FUJIAN TOPSUN MICROFIBER
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