Vulcanized cracks, which may occur in flat areas at low strength joints, cannot be detected by conventional methods and may therefore lack reliability in some demanding car applications. With a threaded retractable rubber flexible connection or welders chisel to sort out the shortcomings, such as shortcomings eradicated after the weld appearance molding can not meet the requirements of the specification, it is necessary to fill the weld from scratch. It is necessary to take into account the orientation of the arc initiation and arc extinguishing when welding; the weld should be polished from the beginning after the completion of welding, so that the transition is smooth.
In the case of the threaded retractable rubber joint, the flat threaded retractable rubber joint is formed first, and then the outer structure is made into a round tube. Once formed, it is necessary to vulcanize the seam of the tube together. This weld largely affects the formability of the part. Therefore, it is important to select the appropriate vulcanization technique to obtain a vulcanization profile that meets the stringent testing requirements of the manufacturing industry. Typical of most solid phase forgings is that high frequency vulcanized joints are not easily and reliably tested using traditional non-destructive techniques.
