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1、2015 年重庆省电焊工初级机械焊接考试试卷一、单项选择题共25 题，每题2 分，每题的备选项中，只有1 个事最符合题意1、补焊铸铁时，采用加热减应区法的目的是为了_。A减小焊接应力，防止产生裂纹B防止产生白口组织C得到高强度的焊缝D得到高塑性的焊缝2、钢与铜及铜合金焊接时，比较理想的过渡层材料是_。A不锈钢B奥氏体不锈钢C铜或铜合金D纯镍3、_电渣焊适用于中小厚度及较长焊缝的焊接。A丝极B板极C熔嘴D管状熔嘴4、熔化极氩弧焊，采用 _电源，电弧稳定，焊缝成型好。A交流B直流C直流反接或交流D直流正接或交流5、仿形气割机是 _进行切割的。A根据图样B按照给定的程序C利用磁力靠模原理D沿着轨道行
2、走6、选择坡口的原则，不应取决于_。A母材厚度B焊接方法C工艺要求D钢的强度7、焊接 1Cr18Ni9Ti 不锈钢的 A137 焊条，根据国家标准不锈钢焊条(GB/T9831995)的规定，新型号为 _。AE30815 BE30915 CE34715 DE41015 8、奥氏体不锈钢焊接时，在保证焊缝金属抗裂性和抗腐蚀性能的前提下，应将铁素体相控制在 _范围内。A5%B10%C5%D10%9、_不是焊接性试验的目的。A评定母材焊接性能的好坏B研制新的焊接材料C确定合适的焊接参数D确定焊缝金属的化学成分10、电弧电压主要影响 _。A熔深B单道焊缝厚度C余高D单道焊缝宽度11、沉淀脱氧是焊接过程中
3、脱氧的主要方式，一般都采用_脱氧。A锰、钼联合B铬、钼联合C钛、钙联合D锰、硅联合12、灰铸铁焊接时，焊接接头容易产生_，这是灰铸铁焊接性较差的原因。A未熔合B夹渣C塌陷D裂纹13、板材对接要求全焊透，采用形坡口双面埋弧焊工艺，在进行后焊的正面焊道焊接时，可以通过观察熔池反面焊接过程中的颜色变化来估计熔深，假设熔池反面为 _色，表示熔深符合要求。A白亮B淡黄C暗红D黑14、荧光探伤是用来发现各种焊接接头的外表缺陷，常作为_的检查。A大型压力容器B小型焊接结构C磁性材料工件D非磁性材料工件15、Dont turn the stove off;the meat _.Ais cooked Bhas
4、been cooked Cis being cooked Dis cooking 16、焊缝中的硫通常以 _形式存在于钢中。A原子BFeS 文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 Z
5、R8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1
6、Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 Z
7、R8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1
8、Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 Z
9、R8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1
10、Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9CSO2 DMnS 17、当两种金属的 _相差很大时，焊接后最易导致焊缝成形不良。A膨胀系数B电磁性C导热性能D比热容18、埋弧自动焊不可以利用 _向熔池过渡合金元素。A熔炼焊剂B合金焊丝C非熔炼焊剂D药芯焊丝19、违约
11、责任是一种 _法律责任。A过失B故意C合同D欺骗20、当奥氏体不锈钢形成 _双相组织时，则其抗晶间腐蚀能力将大大提高。A奥氏体+珠光体B珠光体+铁素体C奥氏体+铁素体D奥氏体+马氏体21、焊接铸铁时，焊缝中产生的气孔类型主要为气孔。 A氮和氢B氮和 CO C反应和 CO2 DCO 和氢22、Q345(16Mn)钢埋弧焊对接开坡口时，可以采用_焊丝配合 HJ431焊剂。AH08Mn2SiA BH08CrMoA CH08A DH10Mn2 23、如果采用分度盘，_可进行多种分度。A车削加工B刨削加工C铣削加工D磨削加工24、_不是等离子弧的特点。A热量集中，温度高B电弧稳定性好C等离子弧
12、吹力大D功率大25、锅炉铭牌上标出的压力是指锅炉_，又称额定工作压力。A最高工作压力文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 H
13、V6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3
14、K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 H
15、V6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3
16、K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 H
17、V6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3
18、K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9B设计工作压力C最低工作压力D平均工作压力二、多项选择题共25 题，每题2 分，每题的备选项中，有2 个或 2 个以上符合题意，至少有 1 个错项。错选，此题不得分；少选，所选的每个选项得0.5 分1、碳弧气刨时的碳棒倾角一般为_。A1025B2560C4560D25452、
19、煤油渗漏检验时，是在焊缝的一面涂上_待干燥后，再在焊缝的另一面涂上_进行的。A肥皂水；煤油B煤油；石灰水C石灰水；煤油D氨气；石灰水3、等离子弧切割以 _气体切割效果最正确。AN2+H2 BAr+H2 CAr+N2 DCO2+N2 4、因为从手到脚电流通过 _，所以电击危险性最大。A肝脏、胃部、血液系统B脾脏、肾脏、消化系统C肾脏、肝脏、中枢神经系统D心脏、肺部、中枢神经系统5、在同样条件下焊接，采用_坡口，焊后焊件的残余变形较小。AV 形BX 形CU 形6、粗丝 CO2 焊中，熔滴过渡往往是以 _的形式出现。A喷射过渡B射流过渡C短路过渡D粗滴过渡7、_属于钨极氩弧焊焊枪的试验内容。A焊丝的
20、送丝速度B输出电流和电压的调节范围C电弧的稳定性D在额定电流和额定负载持续率情况下使用时，焊枪发热情况8、采用碱性焊条，焊前应在坡口及两侧各_mm 范围内，将锈、水、油污等清理干净。A1520 文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编
21、码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P
22、7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编
23、码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P
24、7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编
25、码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P
26、7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9B2530 C3540 D4560 9、_不属于有淬硬冷裂倾向的低合金结构钢焊接工艺特点。A采取预热B要控制热输入C采取降低含氢量的工艺措施D采用酸性焊条10、_是碳
27、在-Fe中的过饱和固溶体。A铁素体B珠光体C奥氏体D马氏体11、防锈铝合金是铝锰系和 _系组成的变形铝合金。A铝铜B铝硅C铝镁D铝铜镁12、焊接过程中会产生污染环境的各种有害因素很多，以下不属于物理有害因素的是_。A放射线B焊接弧光C热辐射D有害气体13、总结灰铸铁电弧冷焊工艺的四句口诀中不包括_。A较小电流熔深浅B焊后锤击消应力C长弧长段连续焊D退火焊道前道软14、两焊件端面间构成大于30、小于 135夹角的接头叫 _。AT 形接头B对接接头C角接接头D搭接接头15、18MnMoNb 钢焊条电弧焊或埋弧焊焊后，要进行回火或消除应力热处理，其加热温度为 _。A400450 B500550 C6
28、00650 D700750 16、_通常是埋弧焊控制余高和调整焊缝熔合比最好的方法。A开坡口B调节焊接电流C调节电弧电压文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9
29、文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6
30、W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9
31、文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6
32、W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9
33、文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6
34、W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9D改变热输入17、_焊剂是国内生产中应用最多的一种焊剂。A黏结焊剂B烧结焊剂C熔炼焊剂18、凹形角焊缝的焊脚尺寸 _焊脚。A大B小于C等于19、CO2 气体保护焊的电源种类与极性应采用_。A交流电源B方波交流电源C直流正接D直流反接20、埋
35、弧焊剂焊前要烘干，烧结焊剂一般要求在_下烘焙 12h。A100200 B200300 C300400 D400500 21、水压试验用的水温低碳钢和16MnR 钢不低于 5，其他低合金钢不低于 _。A5B10C15D2022、_不是促成冷裂纹的主要因素。A钢种淬硬倾向大，产生淬硬组织B接头受到的拘束应力大C较多扩散氢的存在和浓集D较多氧的存在和聚集23、采用 E309-15 焊条焊接 1Cr18Ni9 不锈钢和 Q235 低碳钢，如熔合比为40%时，则焊缝为 _。A含 2%(体积分数)铁素体的马氏体+铁素体双相组织。B含 2%(体积分数)铁素体的奥氏体+铁素体双相组织。C含 2%(体积分数)铁
36、索体的渗碳体+铁素体双相组织。D含 2%(体积分数)铁素体的珠光体+铁素体双相组织。24、补焊铸件前，不应清除干净缺陷部位及附近的_。A石墨B油脂C脏物D型砂25、_喷嘴适用于中、小电流等离子弧焊枪。A单孔B多孔C双锥度文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 Z
37、R8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1
38、Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 Z
39、R8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1
40、Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 Z
41、R8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9文档编码:CL8T1Z7K3L8 HV6W4P7A8Y8 ZR8J6Y3Q3K9