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Fastener surface treatment method

A surface treatment and fastener technology, applied in the field of fastener surface treatment, can solve the problems of not very good treatment effect, too simple surface treatment method, etc. Effect

Inactive Publication Date: 2018-06-22
GEM YEAR IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Fasteners are the most widely used mechanical basic parts and are in great demand. Fasteners have the value of recycling, but the recycled fasteners need to be treated on the surface before they can be used, and the newly produced fasteners Parts also need to be treated on the surface before they can be put into use, but the traditional surface treatment method for fasteners is too simple, and the treatment effect is not very good. Therefore, we propose a surface treatment method for fasteners

Method used

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Embodiment

[0025] A method for surface treatment of fasteners, comprising the steps of:

[0026] S1. Shot blasting: Shot blasting the fasteners in the shot blasting machine to remove rust;

[0027] S2. Dip coating: dip the fastener after shot blasting in a coating solution containing zinc chromate, the viscosity of the coating solution: 100±10 seconds;

[0028] S3. Centrifugation: In order to make the coating liquid on the fastener more uniform and remove excess coating liquid at the same time, the centrifuge uses a special motor with a power of 35-40HZ and a time of 50±10s;

[0029] S4. Baking: Mesh belt gas furnace is used for baking and curing. The baking furnace is heated by a natural gas burner. The length of the mesh belt furnace is widely distributed. The temperature is divided into three sections: the first section is 180±20°C, and the second section is 330±30°C , three sections 175±20℃;

[0030] S5, discharging: take out the baked fastener and place it;

[0031] S6, the secon...

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PUM

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Abstract

The invention discloses a fastener surface treatment method. The method comprises the following steps of S1, shot blasting, wherein shot blasting is carried out on a fastener in a shot blasting machine, and rusting is removed; S2, dip-coating, wherein the fastener subjected to shot blasting is put into a coating solution containing zinc chromate for immersion coating; S3, centrifuging, wherein thepower is 35-40 Hz, the time is 50 + / - 10 seconds; S4, baking, wherein baking and curing are carried out by adopting a mesh belt type gas stove; S5, discharging, wherein the baked fastener is taken out and placed well; S6, secondary immersion coating, wherein the fastener which is baked and discharged is put into the coating solution containing zinc chromate for immersion coating; S7, secondary centrifuging, wherein power is 35-40 Hz, and the time is 50 + / -10 seconds; S8, secondary baking, wherein the baking and curing are carried out by adopting the mesh belt type gas stove; and S9, discharging, wherein the fastener after secondary baking is taken out, and then baking and curing are carried out after the surface of the fastener is coated with the organic resin (repeated twice). Accordingto the fastener surface treatment method, the product can be bright in appearance, uniform in color and luster, high in collision resistance and good in anti-corrosion performance.

Description

technical field [0001] The invention belongs to the field of treatment and processing, and more specifically relates to a surface treatment method for fasteners. Background technique [0002] Fasteners, also known as standard parts in the market, are a general term for a class of mechanical parts used when two or more parts (or components) are fastened and connected into a whole. It is characterized by a wide variety of specifications, different performances and uses, and a high degree of standardization, serialization, and generalization. Fasteners are the most widely used mechanical basic parts and are in great demand. Fasteners have the value of recycling, but the recycled fasteners need to be treated on the surface before they can be used, and the newly produced fasteners The fasteners also need to be treated on the surface before they can be put into use, but the traditional fastener surface treatment method is too simple, and the treatment effect is not very good. The...

Claims

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Application Information

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IPC IPC(8): B05D7/00B05D3/12B05D7/24B05D3/02
CPCB05D3/0272B05D3/12B05D7/24B05D7/584
Inventor 汪慧君车勇陈明发崔玉照
Owner GEM YEAR IND
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