In home appliances, electronics, industrial equipment, and precision components, extension spring products, as key elastic components, are widely used in scenarios such as door lock reset, battery contacts, lighting switches, and sensor triggering.
Nanoindentation technology measures the elastic recovery and plastic deformation behavior of the coating under small loads, and calculates local stress by combining stress-strain curves.
Welders need to be proficient in short-arc welding and uniform electrode manipulation to avoid defects such as undercut and lack of fusion caused by improper operation.
In terms of coating composition, zinc-aluminum alloy coatings exhibit excellent corrosion resistance due to their unique element ratios.
In industrial manufacturing and everyday products, threaded fasteners, though small, often occupy a crucial but easily overlooked position.
In police equipment training, safety education demonstrations, or film and television props, simulated handcuffs, while lacking realistic restraint functions, are frequently subjected to opening and closing, wearing, disassembly, and even simulated combat