How does the low profile head machine screws reduce hydrogen embrittlement?
Hydrogen embrittlement generally occurs on low profile head machine screws made of carbon steel. Especially when the screw is high-strength, hydrogen embrittlement occurs, which makes people particularly troublesome. So how does the flat head screw reduce hydrogen embrittlement? ★Measures to reduce stress Fasteners with a cold work hardness greater than or equal to 320 HV and electroplated can increase the stress relief process. If the process is carried out in accordance with the requirements of GB/T 5267.1-2002 electroplating, the temperature and duration of the process shall vary according to the design of the part, the process and the heat treatment conditions of the part, and the electroplater shall be notified in a timely manner. Machining, grinding, cold forming, or cold-rolling heat treatment of parts with a hardness exceeding 320 HV shall comply with ISO 9587. In the case of intentional introduction of residual stress, the stress release is not satis...