Simulation method for improving thickness uniformity of roll coating film of bolt fastener

Abstract

The invention discloses a simulation method for improving the thickness uniformity of a roller coating film of a bolt fastener, and the method comprises the following steps: (1) modeling: building a three-dimensional space model of a part and an electroplating production line through three-dimensional cartographic software, and building a digital model database of the electroplating production line; (2) calculating the spatial position state of the part: solving vector coordinates of the part in different time steps by utilizing barrel plating motion simulation software; (3) solving the film thickness of the part: inputting the vector coordinate data into roll coating film thickness simulation software, inputting a part model at the same time, obtaining the stacking and placing state of the part in the roller at the time point when each time step is ended, and solving the film thickness distribution accumulated in each time step; and (4) performing data processing. The method is simple and easy to implement, can accurately and reliably predict the roll coating film thickness distribution and the film thickness risk area of the fastener, can find problems in advance in the design stage, reduces the verification period and cost, and reduces the complex workload of technicians.

Description

technical field [0001] The invention belongs to the technical field of cadmium barrel plating on fasteners, and in particular relates to a simulation method for improving the thickness uniformity of the barrel plating film on bolt fasteners. Background technique [0002] Cadmium is a cathodic protection coating on steel substrates, but it is a sacrificial anodic protection coating in high temperature or marine climates. It does not change color in the air at room temperature, and will oxidize to form a protective film in humid air, which can prevent further oxidation and corrosion. Cadmium oxide is insoluble in water and has strong corrosion resistance. The cadmium plating layer has good weldability and lubricity, low hydrogen embrittlement, good gloss and strong adhesion. It is the first choice for corrosion protection of steel fasteners used in aerospace and navigation fields, and be widely used. [0003] Cadmium plating on bolts and fasteners is mostly processed by barr...

AI Technical Summary

Problems solved by technology

However, in the barrel plating process, the position and state of the parts are randomly distributed. It is difficult to fully investigate and study the process of barrel plating with the current method. Therefore, it is urgent to study a simulation method to improve the uniformity of the barrel plating film thickness of bolt fasteners.

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