机械英语-锅炉焊接和维修-中英对照.docx

锅炉焊接和维修1. Butt welding must be used for tube sheets whenever possible.在可能的情况下，管板须采用对接焊。butt ?[b?t]n对接，屁股whenever possible 只要可能butt welding 对接焊2. They did not require any radiographic testing.他们不要求射线检测。radiographic?[,reid?ogr?f?k] a射线照相术的3. The weld metal shall be deposited by the manual shielded metal arc process using low hydrogen electrodes.熔敷金属需用手工电弧焊的方法使用低氢焊条。weld metal 熔敷金属，焊缝金属manual shielded metal arc welding自动保护金属极电弧焊shield [?i?ld]v防御，起保护作用shielded [?i:ld?d]a防护的，屏蔽的electrode [?lektr??d]n电极4. The initial layer of weld metal shall be deposited over the entire area with a 1/8 in. maximum diameter electrode.第一层熔敷金属须用最大直径为1/8英寸的焊条焊满。initial [?n???l]a最初的deposit [d?p?z?t]v使沉积，存放5. Subsequent layer shall be deposited with a 5/32in. maximum diameter electrode in a manner to ensure tempering of the prior beads and their heat affected zones.后续焊层须用最大直径为5/32英寸的焊条焊接。焊接时须保证先焊的焊道及其热影响区得到回火。subsequent ?[s?bs?kw(?)nt]a后来的，随后的prior [pra??]a先前的，在先的bead [bi?d]熔敷焊道，焊道，珠子6. Prior to welding, the rivets or staybolts from which the cracks extend and the adjacent rivets should be removed.在进行焊接前，应拆除有裂缝处及邻近的铆钉和接撑。prior to 在……之前staybolt [steib?ult] n支撑螺栓adjacent [?d?e?s(?)nt]a邻近的，毗连的rivet [r?v?t]n铆钉7. The cracks should be prepared for welding by chipping, grinding or gouging.裂缝处应用凿子凿去或磨平，以备焊接。be prepared for 为……做准备chipping 剥落，修整表面gouge[ga?d?; gu?d?]v圆凿gouging 刨削凿8. In riveted joints, cracks which extend past the inner edge of the plate lap should be welded from both side.在铆接中，若裂缝延伸超过搭接钢板的内边时，应进行双面的焊补。9. Rivet holes should be reamed before new rivets are driven.铆孔在铆接新铆钉前，应先进行铰孔。ream[ri?m]v铰孔10. Threaded staybolt holes should be re-tapped after welding.焊接后，带螺纹的拉撑孔应重新攻丝。11. Tubes may be seal welded provided the ends of the tubes have sufficient wall thickness to prevent burn-through.倘若在管端有足够的百度能防止烧穿时，管子可进行封焊。seal weld密封焊接provided 假如，倘若sufficient[s?f??(?)nt]a足够的，充分的burn-through 烧穿12. Prior to welding, the area should be examined by an appropriate method of NDE to assure that there are no cr