《a奥氏体不锈钢采用焊条电弧焊焊接工艺.doc》由会员分享，可在线阅读，更多相关《a奥氏体不锈钢采用焊条电弧焊焊接工艺.doc（53页珍藏版）》请在三一文库上搜索。
1、security rope fence. (2) must be equipped with the rope tube protection. (3) position of the switch box must be placed correctly, prohibit reverse switch operation sight must be good, if push button switch, the operator has a power switch, move the button switch must be in the 36-Volt . (2) power co
2、rd into the drop of bend, entry must be entered after the fuse before going into the switch inside the oven to complete the grounding and zero connection terminal Board, metal casing should be zero protection. (3) tap inside the box where the air switch, GFCI above to set a separate switch. (4) the
3、box to separate single-phase three-hole outlets, top loading protector, using single-phase equipment must be equipped with a monophase plug of the power supply. (5) where a mobile switch box, housing a reliable protection of zero (ground), equipped with a brake leak. (6) to be clearly separated from
4、 the power, illumination, welding. 3, electricity lines: (1) electric line, required for overhead installation of resilient rubber sheathed cable or plastic. Adopted at the lane or road protection pipe buried underground, set up signs, connectors must be overhead or located connector box. (2) rubber
5、 cable portable power tools, lead length not more than 5 m from the switch box, without joints. (3) use mobile power tools and lighting are soft rubber cord, do not use plastic resin line instead. (4) temporary wiring installations, use a rubber or plastic insulated wires must be knob cables set up,
6、 switch set. 4, grounding and zeroing device: (1) grounding electrode available angles, steel of not less than two, depth of not less than 2 m and not less than 2.5 metres in distance between two grounding, grounding resistance is less than 4 ohm. (2) ground (neutral) wires using insulated copper wi
7、re, do not use aluminium wire for grounding (neutral) wire joints by welding, crimping a reliable electrical connection. (3) rubber cable core in the black or green/Huang Shuang-color line as the ground wire. 5, high voltage line protection: (1) in the vicinity of overhead power transmission line co
8、nstruction, erection of bamboo protection frame. (2) in the vicinity of high voltage cable erection Derrick (gantry), scaffolding outside power lines above the water, all safety nets (Booth). 6, handheld or mobile motor: switch box must have leakage protection devices, leakage current 30ma/0.1s, 15m
9、A/0.1s wet job (includes the following equipment: vibration machine, polishing machine, ramming machines, submersible pumps, electric hand Planer, hand drills, grinders, cutters, pipe threader, moving lights, and so on). 7, mixer, mortar machines: (1) it must be against objects made-and rain-proof s
10、heds. (2) drainage must be smooth, with gutters and sedimentation ponds. (3) the mixer lever must have a safety device. (4) must have a good ground (zero) device. (5) the gravel yard walls must be sturdy and reliable. (6) complete horizontal mortar mixing Drum booth. 8, hoist: (1)problems that canno
11、t be ignored. Some leaders unwilling to do masses work, masses concept weak, on masses feelings not deep, pendulum not are with masses of relationship, think masses work is revolutionary war era of things, now obsolete has, buried business work, ignored masses work of situation compared General; som
12、e leaders not do masses work, old method regardless of with, new not with, not understand masses psychological, not understand masses wishes, not said masses language, work method simple stiff, caused masses of conflict and antipathy; some leaders cant do masses work, Faced with a lot of contradicti
13、ons among the people worry about fear, panic set in encounter group events, and some are even mismanaged, inflame, so work has suffered heavy losses, and so on. These problems we are soberly aware, enhancing the partys ruling capability, the maintenance and development of the partys advanced nature
14、and purity, and to enhance the ability of party committees and leading cadres are good people. Attach great importance to and is good at doing mass work, has become the new urgent situation strengthening the partys governing capacity-building tasks. Combined practice of maintaining flesh-and-blood t
15、ies with the masses, urged the broad masses of party members and cadres, especially all levels . Processing to improve as a guide to the country. What I did is summed up these new things, be promoted. This is a vivid manifestation of the Deng Xiaopings mass. Deng also put people support does not sup
16、port, agreed not to agree, happy happy, promise not to promise as a starting point and destination of developing guidelines, policies, and as the only standard for measuring compliance with the wishes of the masses of the people. Under the guidance of Deng Xiaoping theory, Central Government adopted
17、 a series of important measures to strengthen links with the masses. In December 1989, the CPC Central Committee made on adhering to and perfecting the system of multi-party cooperation and political consultation under the leadership of the Chinese Communist Party, closely for CPC and the democratic
18、 parties and the relationship between the part of the masses that they contact, effectively carrying out the mass line, played a positive role. In March 1990, the 13 plenary session adopted the decision on strengthening contacts with the masses of the Party noted that created and developed in the lo
19、ng struggle of the partys mass line, is to realize the partys ideological line, the fundamental political and organizational work route, can always maintain flesh-and-blood ties and development of the masses, is directly related to the rise and fall of the rise and fall of the party and State. In Se
20、ptember 1994, 14 adopted by the plenary session of the Party on strengthening decision on several major issues of party building. The requirements of the decision of the partys leading bodies and leading cadres should develop a democratic style of work, come from the masses, to the masses, together,
21、 stick to the mass line. Party of 13 session four in the plenary yihou, to Jiang comrade for core of party南 昌 工 程 学 院毕 业 设 计 (论 文)机械与电气工程 系（院） 10材料成型及控制工程 专业毕业设计（论文）题目 奥氏体不锈钢采用焊条电弧焊的焊接工艺评定 学生姓名 毛小辉 班 级 10材料成型及控制工程 学 号 2010100284 指导教师 张丽玲 完成日期 2014 年 5 月 16 日奥氏体不锈钢采用焊条电弧焊的焊接工艺评定SMAW Procedure Qualifi
22、cation of Austenitic Stainless Steel 总计 毕业设计（论文） 30 页 表 格 9 个插 图 5 幅摘要根据目前奥氏体不锈钢焊接日益发展迅速的局面来看,如何针对奥氏体钢的焊接性能来选择合适的焊接工艺显得尤为重要，而焊接工艺评定又是焊接技术和焊接质量控制的水平和能力的标志。鉴于此,在相关的不锈钢的性能知识中选用奥氏体不锈钢材料0Cr18Ni9，同样在焊接理论基础上,选出焊条电弧焊作为研究方法，结合焊接试验实例，阐述在奥氏体不锈钢采用焊条电弧焊的焊接过程中，如何对焊接材料和焊接工艺做出正确的选择，以及通过力学性能测试，采用拉伸、弯曲、冲击等试验方法来确保能得到具
23、有良好使用性能的焊接接头，从而达到对奥氏体不锈钢焊接的焊接工艺评定。关键词 奥氏体不锈钢 焊条电弧焊 焊接工艺 力学性能测试AbstractAccording to the current welding of austenitic stainless steel grows rapidly, weldability of austenitic steels is particularly important to select a suitable welding process. And it is a sign of the welding procedure qualification
24、 and capability of welding technology and welding quality control. In view of this, the selection of austenitic stainless steel material 0Cr18Ni9 in the performance of knowledge in a stainless steel, also in the welding theory basis, choose the SMAW as research methods, combined with the welding tes
25、t examples, expounds on austenitic stainless steel by shielded metal arc welding process, how to make the right choice of welding material and welding process, and the through the test of mechanical properties, the tensile, bending, impact test method to ensure that can get the welded joint has good
26、 properties for use, so as to achieve the welding of austenitic stainless steel welding.Key Words: Austenitic stainless steel; SMAW; welding procedure; Mechanical testing目 录摘要 IABSTRACTII 第一章 绪论11.1 选题的依据11.2 课题的意义11.3 研究概况及发展趋势综述11.4 焊接技术的发展趋势21.5 主要内容及特色2第二章 奥氏体不锈钢42.1 奥氏体不锈钢的化学成分与力学性能42.2 奥氏体钢的焊接
27、性52.2.1 0Cr18Ni9的焊接性能62.2.2 焊接接头的晶间腐蚀72.2.3 焊接接头的刀口腐蚀72.2.4 应力腐蚀开裂72.2.5 焊接接头的热裂纹问8第三章 焊条电弧焊工艺103.1 手工焊概述103.2 焊条电弧焊的原理及特点103.3 焊条电弧焊设备113.4 焊条的分类133.5 焊条电弧焊的操作14第四章 奥氏体不锈钢采用焊条电弧焊的焊接工艺174.1 焊前准备174.2 焊接工艺参数204.2.1 焊条直径204.2.2 焊接电流204.2.3 焊接位置204.2.4 焊接层数204.2.5 电弧电压204.2.6 焊接速度20第五章 奥氏体不锈钢采用焊条电弧焊的焊接
28、实验研究22 5.1焊接实验设计图225.2焊接实验母材22 5.3焊接实验设备23 5.4焊接实验方法23 5.5焊接实验的步骤23 5.5.1 下料23 5.5.2 板材的装配24 5.5.3 焊接24 5.5.4 焊后的清理工作245.5.5 注意事项245.5.6 实验结果分析24 第六章 奥氏体不锈钢的力学性能测试26 6.1拉伸试验26 6.2弯曲试验26 6.3冲击试验26 6.4力学性能试验结果分析27 6.6 焊缝质量的检测27结语28参考文献29 致谢30security rope fence. (2) must be equipped with the rope tube
29、 protection. (3) position of the switch box must be placed correctly, prohibit reverse switch operation sight must be good, if push button switch, the operator has a power switch, move the button switch must be in the 36-Volt . (2) power cord into the drop of bend, entry must be entered after the fu
30、se before going into the switch inside the oven to complete the grounding and zero connection terminal Board, metal casing should be zero protection. (3) tap inside the box where the air switch, GFCI above to set a separate switch. (4) the box to separate single-phase three-hole outlets, top loading
31、 protector, using single-phase equipment must be equipped with a monophase plug of the power supply. (5) where a mobile switch box, housing a reliable protection of zero (ground), equipped with a brake leak. (6) to be clearly separated from the power, illumination, welding. 3, electricity lines: (1)
32、 electric line, required for overhead installation of resilient rubber sheathed cable or plastic. Adopted at the lane or road protection pipe buried underground, set up signs, connectors must be overhead or located connector box. (2) rubber cable portable power tools, lead length not more than 5 m f
33、rom the switch box, without joints. (3) use mobile power tools and lighting are soft rubber cord, do not use plastic resin line instead. (4) temporary wiring installations, use a rubber or plastic insulated wires must be knob cables set up, switch set. 4, grounding and zeroing device: (1) grounding
34、electrode available angles, steel of not less than two, depth of not less than 2 m and not less than 2.5 metres in distance between two grounding, grounding resistance is less than 4 ohm. (2) ground (neutral) wires using insulated copper wire, do not use aluminium wire for grounding (neutral) wire j
35、oints by welding, crimping a reliable electrical connection. (3) rubber cable core in the black or green/Huang Shuang-color line as the ground wire. 5, high voltage line protection: (1) in the vicinity of overhead power transmission line construction, erection of bamboo protection frame. (2) in the
36、vicinity of high voltage cable erection Derrick (gantry), scaffolding outside power lines above the water, all safety nets (Booth). 6, handheld or mobile motor: switch box must have leakage protection devices, leakage current 30ma/0.1s, 15mA/0.1s wet job (includes the following equipment: vibration
37、machine, polishing machine, ramming machines, submersible pumps, electric hand Planer, hand drills, grinders, cutters, pipe threader, moving lights, and so on). 7, mixer, mortar machines: (1) it must be against objects made-and rain-proof sheds. (2) drainage must be smooth, with gutters and sediment
38、ation ponds. (3) the mixer lever must have a safety device. (4) must have a good ground (zero) device. (5) the gravel yard walls must be sturdy and reliable. (6) complete horizontal mortar mixing Drum booth. 8, hoist: (1)of third generation Central led collective, banner Deng Xiao-pings theory great
39、 flag, insisted liberation thought, and facts, and times, in both at home and abroad political storm, and economic risk, severe test before, relies on party and people, defended China features Socialist, created socialist market new system, created full open new situation, advance party of construct
40、ion new of great engineering, founded three a representative important thought, Continue to steer the ship of reform and opening up forward on the right. Comrade Jiang Zemin said: strengthening and improving the partys mass work in the new situation, it is of decisive significance to consolidating t
41、he ruling Foundation of the party. Through our party and some of the worlds major lessons learned from the success of the old party of the party, Comrade Jiang Zemin pointed out: the biggest political advantage of our party is in close contact with the masses, the most dangerous after the ruling par
42、ty was divorced from the masses. He said: our reform and construction, only the understanding, support and participation of the people, peoples enthusiasm and creativity into full play in order to advance; the leadership of the party, only the tie and win the masses embraced, can be consolidated and
43、 strengthened. He pointed out that strengthening and improving the partys work style construction, maintaining the partys flesh-and-blood ties with the masses is the core problem, the key is to do solid work, implement, resolutely oppose and overcome formalism. Comrade Jiang Zemin stressed that all the work and policies of the party, are in c