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1、20XX 年下半年四川省电焊工二氧化碳气保焊接考试试题一、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、钨极直径太小、焊接电流太大是产生_的原因之一。A冷裂纹B热裂纹C再热裂纹D夹钨2、珠光体耐热钢是以铬钼为基础的具有高温强度和抗氧化性的_。A优质碳素结构钢B高合金钢C中合金钢D低合金钢3、钨极氩弧焊电弧电压增大时，会使单道焊缝_。A宽度减小，焊缝厚度增加B宽度减小，余高增加C宽度增加，余高也增加D宽度增加，熔深减小4、水压试验 _的温度一般不得低于5。A试验用水B容器表面C性能试验D试验场地5、等离子弧焊，大多数情况下都是采用_作为电极。A纯钨B铈钨C锆钨D
2、钍钨6、铸铁焊条药皮类型多为石墨型，可防止产生_。A氢气孔B氮气孔CCO 气孔D反应气孔7、根据铜及铜合金焊件形状、尺寸、焊接方法和采用的焊接参数而定，焊前常需要预热到 _。A800900B300700C200300D1001508、焊接前，焊工应对所使用的角向磨光机进行安全检查，但_不必检查。A角向磨光机内部绝缘电阻值B砂轮转动是否正常C有没有漏电现象D砂轮片是否已经紧固牢固9、淬火的目的是为了得到 _组织。A奥氏体B铁素体C马氏体或贝氏体D渗碳体10、CO2 气体保护焊时，焊接速度对_影响最大。A是否产生夹渣B焊缝区的力学性能C是否产生咬边D焊道形状11、在可能导电的焊接场所工作时，所用焊
3、工防护手套应经耐电压_试验，合格后方能使用。A1000V B2000V C2500V D3000V 12、QT400-17 为_的牌号。A灰铸铁B不锈钢C黄铜D球墨铸铁13、点焊焊件之间的接触电阻的大小与_无关。A焊件厚度B焊件材料性质C焊件的表面状况D温度14、日本伊藤关系式不适用于_的钢。A含 Cr 量小于 1.5%B含 Cr 量大于 1.5%C含 C 量大于 1.5%D含 C 量小于 1.5%15、水压试验用的水温低碳钢和16MnR 钢不低于 5，_不低于 15。A奥氏体不锈钢B铝合金C铜合金D其他低合金钢16、评定材料抗冷裂性最好的间接评定方法是_。A冷裂纹敏感性指数B碳当量法C热影响
4、区最高硬度法D搭接接头(CTS)焊接裂纹试验法文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 Z
5、B7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编
6、码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9
7、 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10
8、 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文
9、档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5
10、D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O417、焊缝成形系数和熔合比数值的大小，主要取决于_。A电流的种类与极性B焊接参数C环境温度D焊接坡口形式18、电焊钳在使用前应进行检查，_是检查内容之一。A热膨胀性能B导磁性能C抗氧化性能D装换焊条是否方便19、由于铝
11、的熔点低，高温强度低，而且_因此焊接时容易产生塌陷。A溶解氢的能力强B和氧的化学结合力很强C低熔共晶较多D熔化时没有显著的颜色变化20、碳弧气刨时，刨削速度增大，_。A刨削质量变差B刨槽深度减小C刨槽宽度增大D刨槽尺寸增大21、荧光探伤是用来发现各种焊接接头的表面缺陷，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22、在机械制图中，主视图是物体在投影面上的_。A仰视投影B水平投影C侧面投影D正面投影23、_不是钢电弧焊时氢的危害。A产生气孔B产生白点C引起氢脆D引起热裂纹24、领取生产任务单、图纸和焊接工艺卡片的时间属于_。A作业时间B辅助时间C布置工作时间D准备
12、、结束时间25、焊条电弧焊立焊操作时，发现椭圆形熔池下部边缘由比较平直轮廓变成鼓肚变圆时，表示熔池温度已稍高或过高，应立即灭弧，降低熔池温度，以避免产生_。A裂纹文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5
13、D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G
14、10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O
15、4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4
16、E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M
17、4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A
18、4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4B烧穿C咬边D焊瘤二、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
19、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、焊接作业局部通风不具备_优点。A通风效果较好B不受焊工工作地点布置的限制C烟气不会影响周围环境D烟气不经过作业者呼吸带2、变压器一次电源额定电压U1 与二次额定空载电压U20 之比等于 _。A一次绕组匝数与二次绕组匝数之和B一次绕组匝数与二次绕阻匝数之差C二次绕组匝数与一次绕组匝数之比D一次绕组匝数与二次绕组匝数之比3、_可以测定焊缝金属或焊件热影响区脆性转变温度。A拉伸试验B冷弯试验C硬度试验D冲击试验4、钢材在拉伸时，材料在拉断前所承受的最大应力称为_。A屈服点B冲击韧度C伸长率D抗拉强度5、硫会使焊缝形成 _
20、，所以必须脱硫。A冷裂纹B热裂纹C气孔D夹渣6、_不是一种焊接变形。A弯曲变形B收缩变形C扭曲变形D热变形7、_是扩大或撑紧装配件的一种工具。A夹紧工具B压紧工具C拉紧工具D撑具8、要求焊后热处理的压力容器，应在热处理前焊接返修。如果在热处理后进行焊接返修，返修后 _。A应做硬度检查文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3
21、I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY
22、4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8
23、B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7
24、K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:
25、CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 H
26、R8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 Z
27、B7K3I9A4O4B可不再做热处理C应做压力试验D应再做热处理9、CO2 气体保护焊，采用 _的外特性电源，电弧的自身调节作用最好。A上升B缓降C平硬D陡降10、珠光体钢和奥氏体不锈钢采用E309-15焊条对接焊，操作时应该特别注意 _。A减小热影响区的宽度B减小焊缝的余高C减小焊缝成形系数D减小珠光体钢熔化量11、等离子弧切割以 _气体切割效果最佳。AN2+H2 BAr+H2 CAr+N2 DCO2+N2 12、为了便于装配和 _，应在梁的横向肋板上切去一个角，角边高度为焊脚高度的 23 倍。A避免焊缝汇交于一点B提高梁的稳定性C提高梁的强度D避免焊接产生过热13、_不是产生夹渣的原因。A
28、焊层、焊道之间清渣不干净B焊接电流太小C焊接速度太快D未按规定参数烘干焊条、焊剂14、将钢加热到 A3 或 Acm 以上 5070保温后在静止的空气中冷却的热处理方法称为 _。A正火B淬火C回火D退火15、点焊焊点间距是为 _所规定的数值。A满足焊点数量要求B满足结构强度要求C满足结构刚度要求D避免点焊产生的分流而影响焊点质量16、解剖斜 Y 形坡口对接裂纹试件时，不得采用气割方法切取试样，要用机械切割，要避免因切割振动_。A引起试件的变形B引起试件的断裂文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10
29、 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文
30、档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5
31、D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G
32、10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O
33、4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4
34、E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M
35、4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4C引起裂纹的愈合D引起裂纹的扩展17、焊条电弧焊热焊法焊接灰铸铁时，可得到_焊缝。_。A铸铁组织B钢组织C白口铸铁组织D有色金属组织18、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19、低温压力容器用钢16MnDR 的最低使用温度为 _。A-20 B-40 C-50 D-60 20、铸铁开深坡口补焊时，为了防止焊缝与母材剥离，常采用_。A刚性固定
36、法B加热减应区法C向焊缝渗入合金法D减少螺钉法21、_用于交流焊接时，具有极理想的稳定性、较好的载流量和引弧特性等综合性能。A纯钨极B钍钨极C铈钨极D锆钨极22、切割中厚板金属材料用的等离子弧形式采用_。A非转移型弧B转移型弧C直接型弧D间接型弧23、_不锈钢不会产生淬硬倾向。A奥氏体B铁素体C马氏体24、BX2-1000 型埋弧焊电源是一种 _。A弧焊发电机B弧焊变压器C弧焊整流器D弧焊逆变器25、_不是影响是否需要预热及预热温度的因素。A焊接位置文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB
37、7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码
38、:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9
39、HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10
40、ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档
41、编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D
42、9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G1
43、0 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4B钢材化学成分C焊件厚度D焊接方法文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8
44、M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9
45、A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U
46、1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8
47、C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3
48、I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4文档编码:CY4U1Q4E5D9 HR8B8C8M4G10 ZB7K3I9A4O4