Processing technology for needle plate

A processing technology and needle board technology, applied in the field of needle board processing technology, to achieve the effect of high success rate, high hardness, and small material deformation resistance

Inactive Publication Date: 2012-07-04
常熟市宏达印染机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The hardness of the material is low, the hardness is about HV300 or less, and it is easy to be scratched by abrasion during use, which will cause the needle plate to deform and cause failure, which seriously affects the service life of the needle plate
In addition, in the manufacturing process of the stainless steel needle plate, due to the high deformation resistance of the material, when punching the conical dimple of the conical reaming section, the tip of the punch often breaks in the dimple, and it needs to be removed from the dimple. Dig out the tip of the broken punch, and grind the raised part on the back of the plate, which is costly, time-consuming and laborious, and has a high scrap rate

Method used

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  • Processing technology for needle plate
  • Processing technology for needle plate

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1), material selection: select a beryllium bronze thin strip with a beryllium (Be) content of 1.8% by weight as the base material;

[0030] (2) Stamping: stamping the base material;

[0031] (3), the surface is polished into semi-finished products;

[0032] (4) Aging heat treatment: the treatment temperature is 350 ℃, the treatment time is 2.5 hours, and the hardness reaches HV380;

[0033] (5) Coating: The surface is coated with a layer of chromium coating, and the surface hardness of the coating is HV800.

Embodiment 2

[0035] (1) Material selection: a titanium bronze thin strip with a titanium (Ti) content of 5% by weight is selected as the base material;

[0036] (2) Stamping: stamping the base material;

[0037] (3), the surface is polished into semi-finished products;

[0038] (4) Aging heat treatment: the treatment temperature is 450 ℃, the treatment time is 4 hours, and the hardness reaches HV400;

[0039] (5) Coating: The surface is coated with a nickel-based alloy coating, and the surface hardness of the coating is 1000.

Embodiment 3

[0041] (1), material selection: choose aluminum (Al) content of 8-12% by weight aluminum bronze thin strip plate as the base material;

[0042] (2) Stamping: stamping the base material;

[0043] (3), the surface is polished into semi-finished products;

[0044] (4) Aging heat treatment: the treatment temperature is 410℃, the treatment time is 2.5 hours, and the hardness reaches HV420;

[0045] (5) Coating: The surface is coated with a nickel-based alloy coating, and the surface hardness of the coating is HV850.

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Abstract

The invention discloses a processing technology for a needle plate, which comprises the following steps: (1) selecting materials: selecting a thin bronze band plate as a substrate; (2) punching and forming: punching and forming the substrate; (3) polishing the surface, thereby obtaining a semi-finished product; (4) aging heat treatment: treating at 350-450 DEG C for 2.5-4 hours until the hardness reaches HV380-420; and (5) plating: plating a chrome plated layer or nickel-based alloy plated layer on the surface, wherein the hardness of the surface of the plated layer is HV800-1000. The processing technology for the needle plate disclosed by the invention is simple and feasible, is high in success rate and is low in processing cost. The finished product is high in hardness and long in service life.

Description

technical field [0001] The invention discloses a needle plate processing technology, in particular to a needle plate processing technology suitable for textile dyeing and finishing machinery with a corrosive environment or high hardness requirements. Background technique [0002] The plate material of the existing needle plate for textile dyeing and finishing machinery is usually processed from stainless steel. The hardness of the material is low, the hardness is below HV300, and it is easy to be scratched by abrasion during use, which will cause the needle plate to deform and lead to failure, which seriously affects the service life of the needle plate. In addition, in the manufacturing process of the stainless steel needle plate, due to the high deformation resistance of the material, when punching the conical dimple of the conical reaming section, the tip of the punch often breaks in the dimple, and it needs to be removed from the dimple. Dig out the broken tip of the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00C22F1/08
Inventor 周国东
Owner 常熟市宏达印染机械有限公司
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