机械专业测试稿(中译英)
the electromagnetic valve speed regulation electric motor can rotate/ mark in 1320-132. the range inner realizes stepless speed regulating, by that pulley drive and the actuator reducing the speed , the treating being able to gain the bolt rotation rate dividing 6-60 revolution/ to sat**fy the different plastic product needing. the machine reducing the speed ** that tilted two-stage tooth garden post gear wheel reduction gear , ratio reducing the speed are 1/12.5 , the reducer casing gear wheel adopt high-grade high grade alloy steel to h**e course heat treatment and hard fin**h machining flank of a tooth, sufficient get in touch with curved load support capability. force out the part , the bolt by the fact that the double bond and machine chief ax** reducing the speed linking up , material forcing put in, the tube inner moves at the same time forward in machine with the bolt revolution , one side accepts a bolt's to shear the material pol**hing thoughtlessly, after plastify entering handpiece and molding tube outlet from machine. machine the tube ** to be allotted style , the glossy garden cylindrical surface machine ** processed tube outside outside through fits for the purpose of the inner surface ** close with casting the aluminium heater. bolt: it ** the part processing plastic's directly , transportation and outside warmup fit , plastify , mix and compress since its revolution accompl**hes plastic's, technological requirements reaching products thereby. machine the tube and bolt material are nitriding steel without exception , handle course fin**h machining and nitriding, h**e higher hardness and antifriction, ability against corrosion and longer life time. 20210311