Elbow manufacturers to make the product
Standard: It can be divided into national standard, electrical standard, water standard, American standard, German standard, Japanese standard, Russian standard and so on.
The production process of the elbow: select the main push pump according to the push elbow, select the speed of feeding, gate gate, the mandrel is heated to the working temperature and starts to push, the push speed can be adjusted, push to the midpoint of the push machine automatically stops, the hydraulic gate gate is dead, the core bar is fed, release the gate and back to the end, gate gate to the outside diameter of the rod to start to push. Note: The main push pump can be used at the same time, generally only one can be used. It can also be used to back up without stopping. The backward pump cannot be used at the same time. Only one pump can be started and the other one can be used for backup. Feeding pump can only be used when feeding. The safe pressure adjustment of the hydraulic system of the main oil pump is set, and the stable and safe adjustment of the hydraulic system of the attached cylinder is set. The two ends of the push machine travel is equipped with a travel switch, the actual travel should be less than the large travel, that is, the two ends of the movable push plate before and after the actual endpoint are left some margin, so as to avoid the cylinder piston running to.
Characteristics of push elbow: push elbow needs normalizing + tempering heat treatment, machining port, wall thickness needs to leave burning loss and processing allowance, general allowance is 10%-20% of the theoretical wall thickness of elbow. The smaller the ratio of the wall thickness of the elbow to the section diameter D, the better the fitting performance with the mold, the push elbow, pressing elbow, hot pressing elbow, but the inner arc of the elbow is more prone to instability and wrinkle. According to the metal in plastic deformation when the volume does not change, push into shape when the wall thickness does not change the actual position thinning, push elbow. With the characteristics that the length of the outer arc of the elbow is equal to the length of the tube blank, the formula of the outer diameter of the tube blank can be deduced.