Plier 钳子介绍幻灯片.pptVIP

Plier 钳子 A small instrument with two handles and two grasping jaws, usually long and roughened, working on a pivot; used for holding small objects and cutting, bending, and shaping wire，there are Combination pliers, Slip-joint pliers, Locking pliers, Water-pumper pliers, Diagonal pliers, Long nose pliers, and so on. 钳子常用于夹持小物件、切割金属丝、弯折金属材料等，种类有钢丝钳、鲤鱼钳、大力钳、断线钳、水泵钳、斜嘴钳、尖嘴钳等。  1. Plier forms 钳子式样: A. Combination plier（钢丝钳）; B. Side cutter plier （斜口钳）; C. Long nose plier （尖咀钳）; D. Bent nose plier （弯咀钳）; E. Flat nose plier （扁咀钳）; F. Round nose plier （圆咀钳）; G. Stripper plier （ 剥线钳）; H. Water pump plier （水泵钳）; I. Pincer plier （胡桃钳）； J. ESD pliers （防静电钳）； K. VDE pliers （绝缘钳）； Combination plier（钢丝钳）; Side cutter plier （斜口钳）; Long nose plier （尖咀钳） Bent nose plier （弯咀钳） Flat nose plier （扁咀钳） Round nose plier （圆咀钳） Stripper plier （ 剥线钳） Water pump plier （水泵钳） Pincer plier （胡桃钳） VDE pliers （绝缘钳）； ESD pliers （防静电钳） 2. The procedure of a plier （钳的主要生产工序） Step 1. Cutter- cut raw material into pieces, by a cutter machine（下料 – 用切割机把圆钢切成小段）; Step 2. Forging- heat it to about 1000°C, several forging procedures （锻打 – 先加热到1000摄氏度左右，经过几次锻打成型）; Step 3. Milling （表面车加工）; Step 4. Rough polish- polish by 40# or 60# abrasive （粗抛）; Step 5. Combine two half together （两半部分装配在一起）； Step 6. Body heat treatment, the hardness reach to HRC40-48; Step 7. Cutter edge heat treatment- a. Heat by high frequency heater to 900°C; b. Cool down suddenly in oil, the hardness reach to HRC 55-59（热处理 – 用高频加热到900摄氏度左右，再用油淬火); Step 8. Fine polish- polish by 80# or 100# abrasive（精抛光）; Step 9. Plated （电镀）； Step 10. Assemble with a grip （把套子和钳子装配在一起）; Step 11. Package （包装）. 3. Material 材料 Normal plier’s material is mid-carbon steel (45#-55# carbon steel), some high quality plier made by CrV Stell, or even CrMo Steel（普通的钳子用中碳钢，例如45# 或50# 钢，而好一点的钳子用铬钒钢，或更好的铬钼钢）. The material of grip is plastic （胶套材料为塑料）； 4. Technique requirement Hardness of body is Min HRC40, the hardness of cutting edge is Min HR