Stainless steel passivating technique

Abstract

The invention discloses a stainless steel passivating technique. The stainless steel passivating technique comprises the following steps that deoiling is conducted, and deoiling and rust removal are conducted before processing; rinsing is conducted, and a deoiling agent is cleaned away; activating is conducted, KM0206 serves as activating liquid, and parts subjected to machining such as welding or rolling or heat treatment are subjected to acid pickling before passivating so that oxide skin can be completely removed and metallic matrices can be exposed; rinsing is conducted, and the activating liquid on the surfaces of the parts is cleaned away; passivating is conducted, the parts are soaked in stainless steel passivating liquid for over 30 minutes at the normal temperature, and preferably, soaking is conducted for 60 minutes; rinsing is conducted, the passivating liquid left on the surfaces of the workpieces is cleaned away; neutralizing is conducted, and caustic soda flakes with the concentration being 5% are used for neutralizing; rinsing is conducted, and neutralizing liquid left on the surfaces of the workpieces is cleaned away; pure water is put into use, and due to the fact that impurities are contained in ordinary tap water, impurities and water stains can be removed through the pure water; and drying is conducted, and the workpieces are dried through a drying oven at the temperature being lower than 180 DEG C or aired.

Description

technical field [0001] The present invention relates to one, especially relates to one. Background technique [0002] At present, the stainless steel passivation process is relatively complicated, and there is no unified specification and standard, resulting in uneven quality of passivated stainless steel, and many repeated processes also make the production efficiency low, increase the labor burden of workers, and make the product quality The market is not very competitive. For some operators who have just entered the industry, there is no clear method and process, resulting in frequent mistakes and omissions during operation, and may even cause serious consequences. Contents of the invention [0003] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a stainless steel passivation process, which has simple steps, eliminates many repetitive processes, and improves work efficiency. [0004] In...

AI Technical Summary

Problems solved by technology

[0002] At present, the stainless steel passivation process is relatively complicated, and there is no unified specification and standard, resulting in uneven quality of passivated stainless steel, and many repeated processes also make the production efficiency low, increase the labor burden of workers, and make the quality of the product The market is not competitive

For some operators who have just entered the industry, there is no clear method and process, resulting in frequent mistakes and omissions during operation, and may even cause serious consequences