共查询到19条相似文献,搜索用时 171 毫秒
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本文以奥氏体不锈钢复合钢板产品制造为例,介绍不锈钢复合板制造、焊接过程中的注意事项,包括焊接材料选择,焊接工艺参数,焊接顺序及无损检测要求,从材料下料、坡口制备、现场施焊、无损检测方面阐述了不锈钢复合板焊接质量控制要点。 相似文献
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基于复合板的材料特性,国内核电设备中很少使用,大多采用低合金钢板堆焊不锈钢或直接采用不锈钢钢板制造。目前,国核示范工程CAP1400安注箱项目首次采用国产轧制复合钢板制造。笔者通过对该项目制造过程中从复合板原材料阶段到设备制造阶段的无损检测相关问题进行分析总结,为后续该类材料的使用、设备的设计和相关标准的制定提供参考。 相似文献
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14Cr1MoR与321复合钢板广泛应用于化肥制造业的压力容器中,由于为Cr-Mo不锈钢复合板,导致焊接性很差.本文通过14Cr1MoR与321复合钢板的焊接工艺评定,确定了该复合钢板的焊接工艺和热处理工艺,选用合理的焊接材料、坡口形式、合理的焊接工艺参数和热处理工艺来保证焊接质量,焊后进行了无损检测、力学性能试验和晶... 相似文献
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不锈钢复合板生产方法和制备技术的探讨 总被引:6,自引:0,他引:6
介绍各种不锈钢复合板的生产方法和制备技术,着重分析了各种方法的优缺点和技术特点。同时介绍了几种正研究、开发中的新制备技术,展望了不锈钢复合方法的发展。 相似文献
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采用爆炸焊接法对AL-6XN超级不锈钢与Q345R钢进行焊接,对复合钢板进行消除爆炸应力热处理。为保证焊接接头力学性能和耐蚀性能,复合钢板过渡层和覆层选用不同焊接材料和焊接方法进行试验,并对不同热处理温度下的复合钢板力学性能和耐蚀性能进行测试分析。结果表明,AL-6XN+Q345R复合钢板宜选择中温消除爆炸应力。复合钢板焊接工艺制定时,其过渡层和覆层应优先采用ERNi Cr Mo-3的氩弧焊工艺,以满足设备制造技术要求。 相似文献
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Chen Zejun Zeng Zhen Huang Guangjie Liu Qing Chongqing University Chongqing China 《稀有金属材料与工程》2011,(Z3)
The three-layer clad materials consisting of Al(AA1100) / Mg(AZ31) / Al(AA1100) plate was fabricated by the hot roll bonding method. The crucial technological parameters of manufacturing clad sheet, including the threshold rolling reduction and clad-rolling bonding conditions were investigated. This clad sheet was produced successfully by hot roll bonding with the intermetallic phase formation, which can be observed using conventional optical microscope. The bond interfacial structures of the AZ31 / AA1100 ... 相似文献
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奥氏体系复合钢板的焊接工艺 总被引:1,自引:0,他引:1
通过对奥氏体系复合钢板焊接工艺评定、焊接工艺编制、焊工培训、焊接质量检验、酸洗-钝化处理等环节的试验和实施,解决了奥氏体系复合钢板焊接技术和与此相关的一些生产技术难题,圆满地制成了奥氏体系复合钢板产品. 相似文献
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In this research,2205/Q235 B clad plates were prepared by a vacuum hot rolling composite process.The effects of adding Fe,Ni,and Nb interlayers on the bonding interface structures and the shear strengths of the clad steel plates were studied.The results showed that 2205 duplex stainless steel and the three interlayers produced a large amount of plastic deformation and low-angle boundaries,and the main structures were the recrystallized and deformed grains.There were many recrystallized grains in the microstructure of the Q235 B low-carbon steel due to the low deformation in the rolling process.The Fe interlayer had better wettability with the two kinds of steel,but the lower strength led to the reduction of shear strength by about14 MPa compared with the original clad steel plate.The C element in the Q235 B low-carbon steel easily diffused into the Fe interlayer,and the clad steel plate attained a poor corrosion resistance because a large decarburization area was formed.The Nb interlayer reacted with the Mo element in the 2205 duplex stainless steel to form an Nb-Mo binary alloy,which generated long-banded ferrite.The decarburization area was also produced because the Nb reacted with the C element in the Q235 B to form hard and brittle NbCx.As a result,the shear strength was significantly reduced by about 282 MPa,and the corrosion resistance of the bonding surface was deteriorated.The Ni interlayer did not react with the alloy elements in both sides,and therefore effectively prevented element diffusion and improved the corrosion resistance of the bonding surface.Due to the low strength of the Ni interlayer and the increased number of bonding surfaces of the clad steel plates,the shear strength was reduced to some extent(about 40 MPa),but it still met the engineering application standards. 相似文献