Cold-drawing forming technology of stainless steel wire material for ball-point pen point ball seat body

Abstract

The invention discloses a cold-drawing forming technology of stainless steel wire material for a ball-point pen point ball seat body, belongs to the technical field of stainless steel wire material cold-drawing technology, and solves the technical problem about the scheme of the complete set of production testing technological process of the stainless steel wire material for a pen point ball seatbody produced in China. The solution is that the cold-drawing forming technology sequentially comprises the following steps: selecting raw material wire material, peeling, carrying out first-time annealing, rough polishing, first-time drawing, second-time annealing, second-time rough polishing, second-time drawing, third-time annealing, finishing polishing and third-time drawing to obtain the finished stainless steel wire material with the diameter being 2.3 mm for preparing the ball-point pen point ball seat body; then, carrying out 100% surface defect detection, and cutting off a surface defect part from the finished wire material; and finally, packaging the finished wire material in different discs. With adoption of the cold-drawing forming technology, the stainless steel wire materialhas stable and uniform mechanical property, and the surface defects of a finished product is ensured to be equal to or less than 0.05 mm through the wire material peeling and multiple polishing technology to enable the product to meet the manufacturing requirement of the pen point ball seat body.

Description

technical field [0001] The invention belongs to the technical field of stainless steel wire cold drawing technology, and in particular relates to a stainless steel wire cold drawing forming process for a ball seat body of a ballpoint pen point. Background technique [0002] The neutral nib includes a ball and a ball seat on the nib. At present, my country can not only meet the domestic production needs of tungsten carbide balls, but also export them in large quantities; however, the ball seat body with a diameter of only 2.3mm, whether it is production equipment or raw materials, has long been in the hands of Switzerland, Japan and other countries. In terms of materials, it has long relied on Japan to provide raw materials, and what is directly imported from Japan is 2.3mm finished stainless steel wire, so the production of steel and wire is blank in China. [0003] In December 2014, the first batch of domestic nib steel with good machinability was finally released. The suc...

AI Technical Summary

Problems solved by technology

[0006] 1. The existing technology is not suitable for the production process requirements of domestic materials in my country, and it is impossible to obtain qualified stainless steel wire for nib ball seat body according to this technology;

[0007] 2. There is a lack of surface treatment process for the wire material in the whole technology, so that the surface requirements of the finished wire material cannot be guaranteed;

[0008] 3. In the prior art, there is a lack of surface inspection process for wire materials, and it is impossible to confirm whether the product meets the requirements for use in the end.

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