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Hanging method during hard chromium electroplating of bolt product

A technology of electroplating hard chrome and bolts, applied in jewelry and other directions, can solve the problems of waste of insulating materials, low production efficiency, low qualification rate, etc., and achieve the effect of saving tooling, improving production efficiency, and improving the qualification rate of one-time inspection

Inactive Publication Date: 2015-12-16
GUIZHOU AEROSPACE PRECISION PRODS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This installation method will cause a lot of waste of tooling and insulating materials, and at the same time, the production efficiency is low, and the pass rate of one-time inspection is low.

Method used

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  • Hanging method during hard chromium electroplating of bolt product
  • Hanging method during hard chromium electroplating of bolt product
  • Hanging method during hard chromium electroplating of bolt product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Such as figure 1 , 2 As shown, if the head of the bolt product itself has a lightening hole, the lightening hole on the head should be improved, and the ordinary lightening hole should be designed as a threaded hole with an internal thread;

Embodiment 2

[0026] Such as image 3 , 4 As shown, if the bolt head does not have a relief hole, add a process section, and design the process section as a threaded hole with an internal thread, such as Figure 5 . The key of this technical solution lies in the cooperation of the precision grades of the threaded holes.

[0027] The present invention can also be used for electroplating hard chrome treatment of pins and shafts.

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PUM

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Abstract

The invention discloses a hanging method during hard chromium electroplating of a bolt product. The hanging method comprises the following steps: adding process sections at the head parts of bolts; processing the process sections into threaded holes with internal threads; mounting the tail part of a bolt into the head part of another bolt with the treaded hole containing the internal thread; connecting the head parts and tail parts of five or more parts in series, and suspending on a cooper hook tooling; then, hanging a plurality of bunches of parts on the tooling. According to the hanging method, large amounts of toolings, jigs and insulating adhesive tapes are saved used during the surface treatment and electroplating procedures of hard chrome, the one-time delivery-check qualified rate is increased, and the production efficiency is improved.

Description

technical field [0001] The invention relates to a method for installing and hanging bolt products with electroplated hard chrome, belonging to the technical field of electroplated hard chrome. Background technique [0002] At present, standard bolts and screws used in the aviation and aerospace fields, such as the national standard, the national military standard and the navigation mark, are electroplated with a single type of packaging insulation and a single type of hanging on the tooling when electroplating hard chrome. This installation and hanging method will cause a large amount of waste of tooling and insulating materials, while the production efficiency is low, and the passing rate of one-time inspection is low. Contents of the invention [0003] The technical problem to be solved by the present invention is that, by improving the structure of the head and tail of ordinary bolt products, the mounting method of surface treatment and electroplating is changed, thereb...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D7/00C25D3/04
Inventor 安能李爱萍代文彪雷世斌
Owner GUIZHOU AEROSPACE PRECISION PRODS
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