What are the requirements for selecting hydraulic cylinder material for hydraulic press

The hydraulic cylinder is an important executive component of the hydraulic system of the hydraulic press, and the selection of materials and pressure resistance requirements are relatively high, and must meet the relevant technical specifications. The specific cylinder material follows the following aspects:

Under normal circumstances, there must be sufficient strength and impact toughness, and there must be good welding ability for the welded cylinder. The following materials can be selected according to the parameters, uses and blank sources of the hydraulic cylinder: 25 steel, 35 steel, 45 steel, etc.

Second, cylinder blank generally adopts faded cold drawn or hot rolled seamless steel pipe. At present, the internal hole has been honed or finished in the domestic market, and only need to cut the seamless steel pipe according to the required length, the material is 20 steel, 35 steel, 45 steel.

Third, for the working temperature of the hydraulic cylinder cylinder below -50 ° C, 35 steel, 45 steel must be used, and to be modulated.

Fourth, the cylinder welded with the cylinder head, the use of 35 steel, after machining in the conditioning; Cylinder not welded with other parts, use jump 45 steel.

Fifth, the blank of the back wall is still made of cast iron or forging, or rolled into a barrel with a steel plate, and the fire is faded after welding, and the weld needs to be inspected with X-ray or magnetic inspection.