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(一) 概述根据国民经济发展需要,我国锻压机械有了很大发展,大型液压设备日益增多,液压工作主缸是液压设备的重要组成部分。天锻目前试制之新产品Y78—1600磨料制品液压机,其主缸承受之总压力即为1600吨,缸体工作压力250kg/cm~2,试验压力320kg/cm~2,主缸体外径为1220mm,缸壁厚度为160mm,材质为35~#钢,工作过程中缸壁承受压力(三向应力合成)为1000kg/mm~2,缸体净重8吨,是
(A) Overview According to the needs of national economic development, great progress has been made in China forging machinery, large-scale hydraulic equipment is increasing, hydraulic master cylinder is an important part of the hydraulic equipment. Days forging the current trial of new products Y78-1600 abrasive hydraulic products, the master cylinder to withstand the total pressure is 1600 tons, the cylinder pressure 250kg / cm ~ 2, the test pressure of 320kg / cm ~ 2, the outer diameter of the main cylinder is 1220mm, cylinder wall thickness of 160mm, made of 35 ~ # steel, the cylinder wall during the work under pressure (three-dimensional stress synthesis) of 1000kg / mm ~ 2, the cylinder weight of 8 tons, is