Multiple Composite Rare Earth Tungsten Electrodes Swaging String Playing Equipment and Technology Invention Production Process

Multiple composite rare earth tungsten electrodes swaging string playing equipment and technology invention uses string playing devices relative position of each device is as follows : The first furnace 1 is the tube length of 1m molybdenum wire furnace, the first furnace and the first rotary swaging machine 2 the distance between 15cm ( 15cm i.e. the gap between the two ) , the first guide roller 3 and the first rotary forging machine 2 and the distance between the second heating furnace 4 are 10cm, the second furnace is tube length of 0.7m molybdenum wire tube furnace , and the second rotary forging machine 5 and the second distance between the heating furnace 4 15cm, and the second guide roller and the distance between 10cm.

B203 selected will pass the billet forging Φ6.5 boron oxide into two-string playing machine for processing, billet composition: percentage by weight , of rare earth oxide content of 0.44% lanthanum oxide , yttrium oxide, 1.32% , 0.44% cerium oxide , the balance being tungsten, the first of the first heating furnace 1, the second heating furnace 4 heated to 1450 ℃, the billet feed speed is controlled 3m/min, the first step of setting a first rotary hammer machine 2 and the second rotary hammer machine 5 with mold system as the Φ6.0, Φ5.6, the first guide roller 3 speed 2.9m/min, the second guide roller 6 speed is set to 3.4m/min, after the first processing procedures , will be placed with billet molding system as the Φ5.2, Φ4.8 string play equipment for the second processing procedures , the first and second heating furnace 4 furnace a temperature set at : 1400 ℃ the first guide roller 3 speed 2.9m/min, the second guide roller 6 speed is set to : 3.4m/min; billet into the match after molding system as : Φ4.4, Φ4.1 third said processing step , the first 1 and the second heating furnace 4 furnace temperature was set at 1400 ℃, the first guide roller 3 speed of 3.0m/min, the second guide roller 6 is set to speed : 3.4m/min ; three step is completed , began to enter the B201 stage in the B201 stage tungsten processed through two processes , the first process with mold system as : Φ3.9, Φ3.6, first and second heating furnace 1 furnace temperature to 4 : 1350 ℃ first guide roller 3 speed of 2.8m/min, the second guide roller 6 temperature to 3.2m/min. Second step with mold system as the Φ3.3, Φ3.0, first and second furnace furnace a temperature set at 4 : 1350 ℃ first guide roller 3 speed 3.0m/min, the second conductive material roller 6 speed is set to : 3.6m/min, a variety of specifications available Φ6-Φ3 rare earth tungsten electrode material .


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