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1、2016 年下半年黑龙江电焊工初级焊接考试题一、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、采用非铸铁型焊接材料焊补铸铁,不是为了_。A得到塑性好,强度高的焊缝B松弛焊接应力C得到颜色和母材相同的焊缝D避免裂纹2、_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等离子弧吹力大D功率大3、常用的硬度指标中没有 _。A布氏硬度B洛氏硬度C维氏硬度D奥氏硬度4、水平固定管对接组装时,按规范和焊工技艺确定组对间隙,而且一般应_。A上大下小B上小下大C上下一样D左大右小5、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
2、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6、CO2 气体保护焊有一些不足之处,但_不是 CO2焊的缺点。A飞溅较大,焊缝表面成形较差B设备比较复杂,维修工作量大C焊缝抗裂性能较差D氧化性强,不能焊易氧化的有色金属7、_不是铝合金焊接时防止气孔的主要措施。A严格清理焊件和焊丝表面B预热,降低冷却速度C选用含 5%(质量分数)的铝硅焊丝D氩气纯度应大于99.99%(体积分数)8、_决定金属结晶区间的大小。A冷却速度B加热时间C化学成分D冷却方式9、低温钢 9N1 钢的最低使用温度为 _。A-40 B-70 C-100 D-196 10、_不是球墨铸铁所具有的性能。A塑性极差B耐
3、磨、减振C强度较高D韧性较高11、加热温度 _是不锈钢晶间腐蚀的危险温度区,或称敏化温度区。A250450 B450850 C8501050 D10501250 12、不易淬火钢的 _区为热影响区中的薄弱区域。A正火B过热C部分相变D再结晶13、焊接铸铁时,防止氢气孔措施主要有_等。A烘干焊条B用弱碳化焰气焊C采用石墨型药皮焊条D用中性焰气焊14、_不是超声波探伤的缺点。A判断缺陷性质直观性差B对缺陷尺寸判断不够准确C近表面缺陷不易发现D要求探伤零件表面粗糙度较高15、焊接铸铁时,焊缝中产生的气孔类型主要为()。 ACO2 气孔和氮气孔BCO 气孔和 CO2 气孔CCO 气孔和氢气孔
4、DCO2 气孔和氢气孔16、低温钢 9Ni 钢的最低使用温度为 _。A-40 B-70 C-100 D-196 17、领取生产任务单、图纸和焊接工艺卡片的时间属于_。A作业时间文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7
5、A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2
6、A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7
7、A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2
8、A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7
9、A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2
10、A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6B辅助时间C布置工作时间D准备、结束时间18、_不是焊接梁和柱时,所采取的减小和预防焊接变形的措施。A反变形法B合理的装配焊接顺序C减小焊缝尺寸D严格清理焊件和焊丝表面19、15MnV
11、 钢属于 _钢。AQ345 BQ420 CQ490 DQ390 20、不锈钢复合板的复层接触工作介质,保证耐蚀性,_靠基层获得。A硬度B塑性C韧性D强度21、把直流电转换为交流电,称为逆变,例如利用_组成振荡电路,通过振荡过程将直流电转换为交流电。A电感和电阻B电阻和电阻C电感和电容D电阻和电容22、CO2 气体保护焊时,焊丝伸出长度通常取决于焊丝直径,约以焊丝直径的_倍为宜。A5 B10 C20 D30 23、_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24、对坡口较大、焊件受力大的灰铸铁电弧冷焊时,不能采用 _的焊接工艺方法
12、A多层焊B裁螺钉焊法C合理安排焊接次序D焊缝高出母材一块25、焊接场地应保持必要的通道,人行通道宽度应不小于_m。A3 B2.5 C2 文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2
13、A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7
14、A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2
15、A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7
16、A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2
17、A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7
18、A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6D1.5 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、专用优质碳素结构的牌号中,_表示桥梁用钢。AHP
19、 Bg CH Dq 2、焊接钛及钛合金时,若保护不良,会出现热应力裂纹和_。A热裂纹B再热裂纹C疲劳裂纹D冷裂纹3、等离子弧焊接广泛采用具有_外特性的电源。A上升B陡降C缓降D垂直陡降4、金属材料常用的力学性能指标中没有_。A硬度B冲击韧度C塑性D导热性5、低碳钢不能用来制造工作温度高于_的容器和设备。A300 B400 C500 D600 6、表示变压器变压能力的参数是变压器的变比,变比等于_。A一次电源额定电压和二次额定空载电压之差B一次电源额定电压和二次额定空载电压之和C二次电源空载电压和一次电源额定电压之比D一次电源额定电压和二次额定空载电压之比7、_不是气割机进行切割的优点。A适合切
20、割大厚度钢板B适合切割需要预热的中、高碳钢C气割速度和精度高D操作灵活方便、成本低8、CO2 气体保护焊有一些不足之处,但_不是 C02焊的缺点。A飞溅较大,焊缝表面成形较差B设备比较复杂,维修工作量大C焊缝抗裂性能较差D氧化性强,不能焊易氧化的有色金属文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A
21、6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A
22、4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A
23、6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A
24、4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A
25、6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A
26、4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J69、在压力容器应力集中的地方,如筒体上的开孔处,必要时要进行_。A机械加工B热处理C耐腐蚀处理D适当的补强
27、10、钨极氩弧焊的钨极端部形状采用_效果最好。A球形B锥形尖端C锥形平端D棱锥形11、装配图的尺寸标注与零件图不同,在装配图中不需标注_。A规格尺寸B外形尺寸C装配尺寸D所有零件尺寸12、HT100 是_材料的牌号。A低碳钢B铝C灰铸铁D铜13、Q345(16Mn)钢焊接时,焊条应选用 _。AE4303 BE4315 CE5015 DE6015-D1 14、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容器内部D试验场地15、纯铜焊接时,容易产生难熔合易变形的原因不是因为铝的_。A收缩率较大B热胀系数大C导电系数大D导热系数大16、眼睛离电弧 1m 以内如无防护,经十几秒甚至几秒的紫
28、外线照射,就可能产生_。A白内障B花眼C近视D电光性眼炎17、斜 Y 形坡口对接裂纹试验规定:试件数量为_取 2 件。A每次试验B每种母材文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB
29、2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y
30、7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB
31、2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y
32、7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB
33、2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y
34、7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6C每种焊条D每种焊接参数18、埋弧焊的坡口形式与焊条电弧焊基本相同,但由于埋弧焊的特点,应采用 _。A较厚的钝边B较大的坡口角度C较大的间隙D较厚的垫板19、奥氏体不锈钢与珠光体耐热钢焊接时,采用奥氏体钢焊条的缺点是_。A
35、易产生热裂纹B得不到满足要求的持久强度的接头C易产生冷裂纹D焊接变形大20、热铆时,钉孔直径应比钉杆直径_。A相接近B稍小C稍大21、含有较多铁素体相的奥氏体不锈钢焊接时,_时脆化速度最快。A350B500C450D47522、焊接变位机是通过 _的旋转和翻转运动,使所有焊缝处于最理想的位置进行焊接。A工件B工作台C操作者D焊机23、_不是电阻焊电源变压器的特点。A焊接电流大B功率可调节C二次侧电压低D二次侧电压高24、低合金结构钢电渣焊焊缝及粗晶区晶粒粗大,焊后必须 _以细化晶粒提高冲击韧度。A正火处理B退火处理C回火处理D淬火处理25、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
36、熔深浅B焊后锤击消应力C长弧长段连续焊D退火焊道前道软文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A
37、4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A
38、6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A
39、4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A
40、6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A
41、4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6文档编码:CR8H1Y7A6K6 HL7E4F2P4L8 ZB2A4Q4K5J6