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High-precision cold headed wire product treatment process and equipment

A technology for processing technology and upsetting finished products, which is applied in the field of processing technology and equipment for cold heading finished wire, which can solve problems such as cracking and impact on the service life of molds, and achieve the effects of uniform temperature, high spheroidization rate and sufficient protective atmosphere

Inactive Publication Date: 2013-05-22
浙江瑞利紧固件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the quality of the cold heading finished wire itself is the primary key. Only high-quality cold heading finished wire (such as fine metallographic structure and smooth surface) can produce cold heading products with high difficulty and complex structure, and the quality of the product can be guaranteed. Otherwise, Cracks are prone to occur during the cold heading process of the product, and products with complex structures cannot be formed, and the service life of the mold will also be greatly affected

Method used

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  • High-precision cold headed wire product treatment process and equipment
  • High-precision cold headed wire product treatment process and equipment

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Embodiment Construction

[0012] figure 1 , 2 As shown, the equipment for implementing high-precision cold heading finished wire processing technology includes a spheroidizing annealing furnace 1 and a treatment pool 2. The spheroidizing annealing furnace has an outer furnace 4, an inner furnace 5, a furnace cover 3 and a centrifugal fan 6, and the inner furnace 5 Located in the outer furnace 4, the bottom of the furnace cover 3 facing the top of the inner furnace 5 is a spherical arc, the outer furnace 4 is equipped with an electric heating device 7, and the centrifugal fan 6 is installed on the bottom of the inner furnace 5 Between the furnace and the bottom of the outer furnace, when the centrifugal fan is working, a forced convection circuit is formed between the inner furnace, the gap between the inner furnace roof and the furnace cover, the inner furnace and the outer furnace wall, and the inner furnace and the outer furnace bottom gap , the annealing furnace is provided with nitrogen inlet 10, ...

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Abstract

The invention discloses a high-precision cold headed wire product treatment process, comprising the processing steps of: (1) putting wire products into a spheroidizing annealing furnace for spheroidizing annealing; (2) detecting the wire products after spheroidizing annealing, and performing aging treatment on the qualified wire products; (3) putting the qualified wire products which are subjected to aging treatment into a treatment pond to perform surface treatment, wherein the surface treatment comprises the processing steps of: a, pickling for three times in a pickling pool, b, washing by water in a rinsing pool, c, washing by oxalic acid in an oxalic acid pool, d, phosphating in a phosphating pool, and e, saponifying in a saponification pool; and (4) drying. The cold headed wire products treated by the high-precision cold headed wire product treatment process has the advantages of high rate of spheroidization, low rate of decarburization, and being lubricant and easy to use. According to the high-precision cold headed wire product treatment process, the cold headed products with large difficulty and complex structure can be produced, the products are good in quality and can be prevented from cracking in the cold heading process, and the service life of a mold can be greatly prolonged. And meanwhile, the invention further discloses equipment for implementing the high-precision cold headed wire product treatment process.

Description

technical field [0001] The invention relates to a process and equipment for processing cold heading finished silk. Background technique [0002] The cold heading finished wire can be directly used to make various rod parts on the cold heading equipment. The parts have high precision and strong interchangeability, especially high production efficiency and low cost, which can greatly reduce the labor intensity of workers. It is widely used in production and production of automobile and motorcycle parts. Among them, the quality of the cold heading finished wire itself is the primary key. Only high-quality cold heading finished wire (such as fine metallographic structure and smooth surface) can produce cold heading products with high difficulty and complex structure, and the quality of the product can be guaranteed. Otherwise, Cracks are prone to occur during the cold heading process of the product, and products with complex structures cannot be formed. In addition, the service...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D1/32C21D9/52C21D1/74
Inventor 陈利荣徐小红徐顺庆
Owner 浙江瑞利紧固件有限公司
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