2016年下半年内蒙古电焊工高级二氧化碳气保焊接模拟试题.pdf

2016 年下半年内蒙古电焊工高级二氧化碳气保焊接模拟试题一、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、为使试验顺利进行，整管焊接接头拉伸试样可_，以利于夹持。A外加卡环B制作夹头C焊接挡板D制作塞头2、把直流电转换为交流电称为逆变，例如利用电感和电容组成振荡电路，通过_将直流电转换为交流电。A整流过程B振荡过程C变压过程D自耦3、等离子弧焊接不锈钢时，应采用_电源。A交流B直流正接C直流反接D脉冲交流4、铝及铝合金表面的氧化膜采用化学清洗时，其特点不包括_。A效率高B适用于成批生产的工件C质量稳定D工序多5、国际焊接学会推荐的碳当量计算公式适用于_。A高合金钢B奥氏体不锈钢C耐磨钢D碳钢和低合金结构钢6、薄板对接焊缝产生的应力是_。A单向应力B平面应力C体积应力7、当气孔尺寸在 _时，可以不计点数。A0.1mm 以下B0.2mm 以下C0.5mm 以下D0.05mm 以下8、职业道德内容很丰富，但却不包括_。A职业道德守则B职业道德培养C职业道德品质D职业道德效益9、火焰矫正焊接变形时，加热用火焰一般采用_。A碳化焰B氧化焰C轻微碳化焰D中性焰10、焊接热输入越大，焊接引起的变形_。A一样B略小C越小D越大11、二次结晶的组织和性能与_有关。A冷却速度B冷却方式C冷却介质12、在装配图中，_是不需要标注的。A装配尺寸B外形尺寸C规格尺寸D零件所有尺寸13、随着焊缝含 _量的增加，会引起焊缝金属的热脆、冷脆和时效硬化。A氢B氧C氮D硫14、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15、氩气瓶工作压力为 _MPa。A15 B18 C20 D22 16、焊工应有足够的作业面积，作业面积应不小于_m2。A5 B4 C3 D2 17、碳钢和低合金高强度钢其碳当量为_时，焊接性能优良。文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1A小于 0.40%B小于 0.50%C小于 0.60%D小于 0.70%18、焊前应对焊割场地进行安全检查，但_不属于场地安全检查内容。A易燃易爆物是否采取安全措施B有无水源与消防灭火器材C气瓶与明火热源的距离是否符合要求D地面是否干净卫生19、埋弧焊机的调试内容应包括_的测试。A脉冲参数B送气送水送电程序C高频引弧性能D电源的性能和参数20、合金结构钢牌号 16MnR 中，“Mn”表示 _。A锰的质量分数的平均值等于0.16%B锰的质量分数的平均值小于0.16%C锰的质量分数的平均值小于0.5%D锰的质量分数的平均值小于1.5%21、牌号为 A137 的焊条是 _。A碳钢焊条B低合金钢焊条C珠光体耐热钢焊条D奥氏体不锈钢焊条22、F 是_的元素符号。A氢B氧C氮D氟23、用于照料工作地，以保持工作地处于正常工作状态所需要的时间是_。A基本时间B辅助时间C布置工作地时间D准备、结束时间24、Y 形焊接接头弯曲角合格标准为90_。A碳素钢、奥氏体钢双面焊B碳素钢、奥氏体钢单面焊C其他低合金钢双面焊D其他合金钢单面焊25、焊缝中的硫通常以 _形式存在于钢中。A原子BFeS CSO2 DMnS 文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1二、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，本题不得分；少选，所选的每个选项得0.5 分）1、硫会使焊缝形成 _，所以必须脱硫。A冷裂纹B热裂纹C气孔D夹渣2、筒节的拼接纵缝，封头瓣片的拼接缝，半球形封头与筒体、接管相接的环缝等属于 _接头。AA 类BB 类CC 类DD 类3、由于球化剂具有阻碍石墨化作用，因此球墨铸铁产生白口铸铁组织的倾向_。A与灰铸铁相同B比灰铸铁小C比灰铸铁小得多D比灰铸铁大4、从环境温度来看，锅炉和部分压力容器_工作。A都在高温下工作B在高温下工作，有的压力容器还在低温下C都在低温下工作D在高温下工作，有的还在常温下5、压力容器专用钢材 _的质量分数不应大于0.020%。A硫B磷C碳D硅6、_不是非破坏性检验。A致密性试验B水压试验C着色检验D金相检验7、气焊高碳钢，应采用 _火焰进行焊接。A碳化焰B中性焰C轻微碳化焰D氧化焰8、焊接接头冲击试样的数量，按缺口所在位置应_3个。A各自不少于B总共不少于C平均不大于D平均不少于文档编码:CJ4F5E7S4Q8 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ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N19、为了防止气孔，铝合金焊接时采取的主要措施有_等。A采用小的焊接电流B严格清理焊件和焊丝表面C合理选用焊丝D选用热量集中的焊接方法10、手工电弧焊对接接头单面焊时，必须保证_不小于 0.7 倍的板厚。A焊缝厚度B焊缝熔深C焊缝余高D焊缝计算厚度11、15MnV 钢属于 _钢。AQ345 BQ420 CQ490 DQ390 12、水压试验的试验压力一般为_的 1.251.5 倍。A设计压力B最高工作压力C最低工作压力D工作压力13、灰铸铁焊接接头容易产生白口铸铁组织的原因是由于补焊时_。A冷却速度太快B冷却速度太慢C焊接应力太大D焊件受热不均匀14、_不是球墨铸铁所具有的性能。A塑性极差B耐磨、减振C强度较高D韧性较高15、奥氏体不锈钢的焊接电流(A)，一般取焊条直径(mm)的_倍。A1520 B2530 C3540 D4550 16、由于纯铜的 _不高，所以在机械结构零件中使用的都是铜合金。A导电性B导热性C低温性能D力学性能17、氧气瓶与乙炔发生器、明火、可燃气瓶或热源的距离应_。A10m B5m C1m 文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1D2m 18、_的结构和几何尺寸对等离子弧的压缩作用及稳定性有重要影响。A喷嘴B焊枪C电极D电源19、将钢加热到 A3 以上或 A1 左右一定温度，保温后缓慢(一般随炉冷却)而均匀冷却的热处理方法称为退火，它可以_。A提高钢的硬度、提高塑性B降低钢的硬度、提高塑性C提高钢的硬度、降低塑性D降低钢的硬度、降低塑性20、熔化极氩弧焊焊接铝及铝合金时_直流反接。A采用交流焊或B采用交流焊不采用C采用直流正接或D一律采用21、灰铸铁补焊时，采用 _焊条，得到铸铁焊缝，焊缝容易产生白口组织。A镍基铸铁焊条B高钒铸铁焊条C铜钢铸铁焊条D铁基铸铁焊条22、当填充金属材料一定时，_的大小决定了焊缝的化学成分。A运条角度B焊缝熔深C焊缝余高D焊缝宽度23、将钢加热到 A3 以上或 A1 左右一定温度，保温后，缓慢(一般随炉冷却)而均匀冷却的热处理方法称为_，它可以降低钢的硬度，提高塑性。A淬火B回火C正火D退火24、只有将 _提供给数控气割机控制装置，气割机才能自动地进行切割。A工作样板B工作图样C工作尺寸D工作指令25、_属于钨极氩弧焊焊枪的试验内容。A焊丝的送丝速度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，焊枪发热情况文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 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HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1文档编码:CJ4F5E7S4Q8 HT5X6X6U7H10 ZM10A5C9Q2N1