砼泵的金属橡胶零件一般使用于对密封要求高、耐磨性好和承受一定冲击的砼输送活塞和输送阀的端面密封件。它主要由起承载作用的钢架或连接体用高强度粘结剂与外部橡胶在定型钢模中通过热压制作而成。该零件的工作表面为橡胶材料，在运动中起密封作用，并承受较大的冲击。在解 The metal-rubber parts of the helium pump are generally used for the end seals of the helium conveying piston and the delivery valve which require high sealing, good wear resistance, and withstand a certain impact. It is mainly made of a steel frame or connecting body that acts as a load and is made of a high-strength adhesive and external rubber by hot pressing in a shaped steel mold. The working surface of the part is a rubber material, which plays a sealing role in the movement and withstands a large impact. In solution