[Introduction]The control requirements for hydrogen relief treatment during the repair of electroplated high-strength steel parts should be analyzed and clarified to resolve corresponding doubts that arise during the implementation of hydrogen relief treatment standards,ensuring the quality and safety of electroplated products.[Method]The actual implementation requirements within the scope of the standard HB/Z 318-1998 were summarized based on years of practice,and a variety of hydrogen relief treatment conditions combined with deplating and electroplating were primarily analyzed. The control measures of hydrogen relief treatment for special materials and under special conditions were also discussed.[Result]For the parts with a tensile strength not lower than 1300 MPa,8-hour hydrogen relief treatment should be conducted after acid deplating prior to replating. For the parts with a tensile strength lower than 1300 MPa,hydrogen relief treatment could be carried out after acid deplating and replating,while the deplating process must not be conducted over two times.[Conclusion]Stress relieving,hydrogen relief treatment after deplating and plating,and heat treatment are all important heat treatment processes. The production can be simplified by combining some of these processes,but it is essential to follow the relevant standards and risk control principles. In addition,it is recommended to conduct the hydrogen relief treatment in oil furnace with 20# aviation lubricating oil,as well as to configure an information system and early warning equipment to deal with the risks such as power outage and disconnection that may occur during hydrogen relief treatment.
high-strength steel partelectroplatingrepairhydrogen relief treatmentstandardprevention and control
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