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J 1113A型卧式冷室压铸机的贮压罐是由两只罐体组成,每只容积100 1,用以贮存高压液体。它上部充氮气,下部为油液,工作压力为100kgf/cm~2。当主机工作时,将高压液体供主机使用,压力在90～100kgf/cm~2之间脉动。贮压罐结构如图1所示。罐体采用20 g无缝钢管,二端焊以20 g碳钢板压成的半球形封头。在制造过程中要求进行严格的材质分析,机械性能测定及裂纹的检查。制成后,根据国标“气瓶安全监察规程”的有关规定进行水压试验、残余变形的测定,并进行爆破试验。爆破试验的真实强度要大于或等于按强度理论公式计算的强度值。 20 g无缝钢管的强度计算数据是: 屈服极限:σ_s>22kgf/mm~2;
J 1113A horizontal cold chamber die casting machine pressure tank is composed of two tanks, each volume of 100 1, used to store high-pressure liquid. It is filled with nitrogen, the lower part of the oil, working pressure of 100kgf / cm ~ 2. When the host work, the high-pressure liquid for the host to use, the pressure pulsation between 90 ~ 100kgf / cm ~ 2. Pressure tank structure shown in Figure 1. The tank is made of 20 g seamless steel tubes welded at both ends with a hemispherical head molded from 20 g carbon steel. In the manufacturing process requires rigorous material analysis, mechanical properties and crack inspection. After made, according to the national standard “cylinder safety supervision regulations ” the relevant provisions of hydrostatic test, determination of residual deformation and blasting test. The true strength of the blasting test is greater than or equal to the strength value calculated by the strength theory formula. 20 g seamless steel pipe strength calculation data is: yield limit: σ_s> 22kgf / mm ~ 2;