自动化焊接的发展趋势

图像处理技术在焊接领域的应用已引起国内外学者的广泛重视，采用该技术，对动态焊接熔池位置及其熔池动态形貌的监控。可以实现对自动焊接过程及其焊接质量的自动控制；也可以实现焊接缺陷无损检测自动化。本文对上述有关文献进行了综合论述，以期推动焊接自动化的发展。     

爆炸焊接和金属复合材料

简述了金属爆炸焊接的过程和它的金属物理学本质，总结它的特点和应用，介绍了爆炸焊接法的生产的８０种金属复合材料和分类，展望了爆炸焊接和金属复合材料的发展前景，指出了它们在重要的技术和经济价值，应当在我国有一个大的发展。     

测压法配制混合气的方法及误差分析

主要介绍了测压法配制混合气的原理、方法，并分析了配制过程中各项误差的控制。     

高炉煤气在φ51m环形加热炉中的应用

阐述了混合气在无缝钢管环形加热炉中的应用方法、过程及意义,调试初期已取得了显著地经济效益,对在轧管行业中,环形炉加热钢坯使用高炉煤气有很大的推广价值。     

一号高炉炉壳的自保护焊接

对一号高炉炉壳应用半自动药世焊丝自保护焊，经焊前试验和对炉壳焊后质量采用超声波探伤抽检，结果表明，自保护焊的焊接质量较好，焊接速度比手工焊快两倍。     

爆炸焊接和其他爆炸加工工艺在核工程中的应用

综述爆炸焊接技术在核工程的异种金属焊接和金属复合材料生产方面的应用，还介绍了其他爆炸加工新技术在核工程中的应用。     

混合煤气在脉冲燃烧系统上的应用

介绍了720分厂以高炉煤气和天然气的混合气为燃料,在热处理炉上应用脉冲燃烧控制技术的情况,分析了生产实践中的故障.并提出了解决方法.     

在RH脱气装置中LNG-Oxygen混合气的应用

通过向100tRH真空室内喷射液态天然气和氧气的混合气体，考察了其补偿热量的效果及耐火内衬表面和钢液的温度变化。结果表明：该方法不仅能够补偿钢液的热量损失，而且RH内衬上也不会粘附冷钢：在常压下燃烧混合气，约70％的热量被内衬吸收，在处理钢液过程中燃烧混合气，约52％热量被钢液吸收：热辐射率ε与热量传输率相当，约为0．38。     

浅析异种钢冬季焊接的实践与探索

以冬季焊接为例，阐述焊接工艺对焊接质量的影响，从而提出改进措施，确保焊接质量．     

异种金属电子束焊接特点及应用现状

电子束焊接目前已广泛应用于原子能、航空航天、机械、汽车制造等行业，是一种先进的高能焊接技术。电子束由于其许多特有的优点，在异种金属的焊接中显示出了其他焊接方法不可此拟的优势，具有广阔的应用前景。     

唐钢120t转炉托圈焊接修复

结合唐钢炼钢厂转炉托圈上盖板裂纹及焊接修复,介绍了熔化极氩弧焊在冶金行业大型设备维修中的应用及混合气保护在焊接中的使用及效果.     

镁合金焊接技术的研究现状

镁合金发展前景广阔,但焊接性较差限制了其应用。文章介绍了镁合金的钨极氩弧焊、熔化极惰性气体保护焊、激光焊、搅拌摩擦焊、电子束焊、电阻点焊等常用的几种焊接方法及其研究现状,提出了镁合金焊接今后的研究方向。     

倾翻风缸焊补工艺的研究

该文介绍了采用CO2＋O2混合气体保护焊对倾翻风缸进行补焊的工艺过程。通过对灰口铸铁部件的实际补焊操作,总结出合理的焊接工艺。     

Comparative Study on Processing Property Between CWW CO2 Gas Shielded Welding and SAW

 Cable welding wire (CWW) CO2 gas shielded welding is an innovative process arc welding with high efficiency, high quality and low consumption, in which cable wire is used as consumable electrode. CWW CO2 gas shielded welding and submerged arc welding (SAW) are used for contrast studies on processing property of high strength steel A36 used in ship structure. The results show that the shapes of weld seam, using CWW CO2 gas shielded welding and SAW, are good and no weld defect such as air hole, flaw, slag inclusion, incomplete fusion, lack of penetration and so on are found in the weld seam. Because the rotating of arc during CWW CO2 gas shielded welding process has a strong stirring effect on molten pool, the grain in the heat affected zone (HAZ) of the joints, using CWW CO2 gas shielded welding, is small. Tensile failure positions of joints by CWW CO2 gas shielded welding and SAW are all in the base metal, but tensile strength of CWW CO2 gas shielded welding joint is higher than that of SAW joint by an average of 2. 3%. The average impact energy of HAZ, using CWW CO2 gas shielded welding and SAW, is almost equal, but the average impact energy of the weld seam using CWW CO2 gas shielded welding is increased by 6%, and the average impact energy of the fusion line is increased by 7%. The 180° bending tests for the joints of CWW CO2 gas shielded welding and SAW are all qualified, and the joints hardness is all less than HV 355, but hardness of CWW CO2 gas shielded welding wire welding joint near the fusion line is obviously lower. It can be concluded that the properties of CWW CO2 gas shielded welding are better than those of the SAW joint, and CWW CO2 gas shielded welding is suitable for welding high strength steel A36 used in ship structure.     

非调质低焊接裂纹敏感性(WDB620)钢的焊接

采用焊条电弧焊，气体保护焊，埋弧焊以及焊接热模拟的方法，研究了了WDB620钢焊接接头力学性能及抗冷裂性能，结果表明：当焊接热输小于35kJ/cm时，可以获得良好的焊接接头性能，非调质工艺生产的WDB620钢具有很低的焊接冷裂纹敏感性。     

Effect of Welding Processes on Tensile and Impact Properties, Hardness and Microstructure of AISI 409M Ferritic Stainless Joints Fabricated by Duplex Stainless Steel Filler Metal

The effect of welding processes such as shielded metal arc welding, gas metal arc welding and gas tungsten arc welding on tensile and impact properties of the ferritic stainless steel conforming to AISI 409M grade is studied. Rolled plates of 4 mm thickness were used as the base material for preparing single pass butt welded joints. Tensile and impact properties, microhardness, microstructure and fracture surface morphology of the welded joints have been evaluated and the results are compared. From this investigatio.n, it is found that gas tungsten arc welded joints of ferritic stainless steel have superior tensile and impact properties compared with shielded metal are and gas metal arc welded joints and this is mainly due to the presence of finer grains in fusion zone and heat affected zone.     

新型焊割气应用在黑色金属焊接工艺上的探索

只有掌握新型焊割气的特性和焊接操作工艺，可代替乙炔对低中碳钢，低合金结构钢进行焊接。     

Effect of welding processes on tensile, impact, hardness and microstructure of AISI 409M ferritic stainless joints fabricated using duplex stainless steel filler metal

 The present investigation is aimed at to study the effect of welding processes such as shielded metal arc welding, gas metal arc welding and gas tungsten arc welding on tensile and impact properties of the ferritic stainless steel conforming to AISI 409M grade. Rolled plates of 4 mm thickness were used as the base material for preparing single pass butt welded joints. Tensile and impact properties, micro hardness, microstructure and fracture surface morphology of the welded joints have been evaluated and the results are compared. From this investigation, it is found that gas tungsten arc welded joints of ferritic stainless steel showed superior tensile and impact properties compared with shielded metal arc and gas metal arc welded joints and this is mainly due to the presence of finer grains in fusion zone and heat affected zone.     

我国焊接药剂分析方法的应用现状

焊接药剂由多种硅酸盐、碳酸盐、氧化物、氟化物、铁合金、金属粉等无机物及有机物经熔炼、烧结、粘结或混合制成,是重要的钢铁、镍基合金熔焊用材,在焊接过程中起到造渣、脱氧、造气、稳弧、合金化等作用。准确、快速地测定元素成分及物相构成,对焊接药剂的性能评价、质量控制等具有重要意义。基于由传统化学分析到现代仪器分析,由单元素测定到多元素联测的发展脉络,系统综述了焊接药剂分析方法及前处理技术的应用现状,并展望发展趋势。     

BTi -62421S高温钛合金超塑成形与焊接工艺研究

设计了新型高温钛合金BTi - 62421S舵面模拟件超塑成形模具,结合超塑成形与几种典型焊接技术,研究了激光焊、滚焊等焊接方法对超塑成形的影响,最终研制出钛合金舵面模拟件超塑成形零件.结果表明采用激光焊与滚焊工艺都能很好地保证两层钛合金板气密性要求,激光焊接工艺效率更高、表面质量更好,选择适当的激光焊接工艺参数可获得...