Quality control of the surface condition of parts

Before the electroplating enterprise accepts the parts manufacturing commission to process the parts, it should seriously implement the technical coordination procedure for the surface condition of the parts before plating:

1. Digest the design drawings of the parts carefully, and discover in advance the various defects that may exist on the parts that hinder the acquisition of high-quality coatings;

In order to ensure the quality of the parts after plating, the design drawings of the parts must be carefully digested, and if necessary, the manufacturing process of the parts should be understood in order to discover in advance the various defects that may exist on the parts that hinder the acquisition of high-quality coatings. . The design drawings and manufacturing process of the parts should be carefully analyzed from the following aspects:

①The influence of the shape of the part on the quality of the coating;

②The influence of the thickness of the plating layer on the size and fitting accuracy of the parts;

③The influence of surface defects that may occur in the manufacturing process of parts on the quality of the coating;

④The requirements of the design drawings on the surface roughness of the parts, and the evaluation of the impact on the quality of the coating;

⑤The influence of part structure on the quality of coating;

⑥The influence of various metallurgical factors on the parts on the quality of the coating.

2. Carry out technical coordination with the design and manufacturing process departments of the parts, and implement the negotiated results on the drawings and technical agreements;

In order to ensure the quality of the coating on the surface of the part, the above analysis must be technically coordinated with the design and process department of the part. The main basis for technical coordination is that in addition to the GB/T12611-90 “Technical Requirements for Quality Control of Metal Parts Before Plating”, the practical experience in line with scientific laws obtained in the electroplating industry in long-term practice is also an important basis for technical coordination.

3. The electroplating company checks and accepts the surface quality of the parts before plating according to the technical requirements specified in the part drawings and technical agreements

In order to do a good job in the quality control of the surface condition of the parts before plating, the electroplating company should carefully check and accept the parts sent from the parts manufacturer in accordance with the provisions of the technical agreement, one is to implement the results of the technical coordination between the two parties, and the other is to maintain itself Quality reputation.