Qingdao Haiqin Welding Material Co.,Ltd. is located in the beautiful coastal city - Qingdao, location, traffic, transportation is very convenient. Companies from less than 1 hour from Qingdao port
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Qingdao Haiqin Welding Material Co.,Ltd. | en.weldingchina.cn Reviews
https://en.weldingchina.cn
Qingdao Haiqin Welding Material Co.,Ltd. is located in the beautiful coastal city - Qingdao, location, traffic, transportation is very convenient. Companies from less than 1 hour from Qingdao port
-青岛海琴焊接材料有限公司-焊条,电焊条,焊接电极,焊粉,泡花碱,焊丝
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地址 青岛市四方区傍海南路43号 电话 15725323623 手机 15805329660/15194359992 传真 0532-87670616 E-mail haiqinwelding@188.com.
-我国新钢种及其焊接性的发展-新闻中心-青岛海琴焊接材料有限公司-焊条,电焊条,焊接电极,焊粉,泡花碱,焊丝
http://www.weldingchina.cn/news_detail/newsId=1.html
应当指出，锰是微合金化钢中的主加元素，一般加入量为1.1 2.0%。 锰的加入，不仅可以提高固溶强化作用，而且还能降低γ→α的转变温度，从而达到细化铁素体晶粒的作用。 我国于1998年在国家重大基础研究发展规划中启动了“新一代钢铁材料重大基础研究”的“973项目”。 韩国也于1977年开始了一个历时十年的21世纪结构钢项目，主要研究开发800 Mpa级结构钢、600 Mpa级耐候钢和1500 Mpa级的螺栓钢。 地址 青岛市四方区傍海南路43号 电话 15725323623 手机 15805329660/15194359992 传真 0532-87670616 E-mail haiqinwelding@188.com.
-焊条电弧焊熔池温度的控制-新闻中心-青岛海琴焊接材料有限公司-焊条,电焊条,焊接电极,焊粉,泡花碱,焊丝
http://www.weldingchina.cn/news_detail/newsId=4.html
如12mm平板对接平焊的封底层选用φ3.2mm的焊条，焊接电流 80-85A，填充，盖面层选用φ4.0mm的焊条，焊接电流 165-175A，合理选择焊接电流与焊条直径，易于控制熔池温度，是焊缝成形的基础。 4、电弧燃烧时间，φ57×3.5管子的水平固定和垂直固定焊的实习教学中，采用断弧法施焊，封底层焊接时，断弧的频率和电弧燃烧时间直接影响着熔池温度，由于管壁较薄，电弧热量的承受能力有限，如果放慢断弧频率来降低熔池温度，易产生缩孔，所以，只能用电弧燃烧时间来控制熔池温度，如果熔池温度过高，熔孔较大时，可减少电弧燃烧时间，使熔池温度降低，这时，熔孔变小，管子内部成形高度适中，避免管子内部焊缝超高或产生焊瘤。 地址 青岛市四方区傍海南路43号 电话 15725323623 手机 15805329660/15194359992 传真 0532-87670616 E-mail haiqinwelding@188.com.
---青岛海琴焊接材料有限公司-焊条,电焊条,焊接电极,焊粉,泡花碱,焊丝
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地址 青岛市四方区傍海南路43号 电话 15725323623 手机 15805329660/15194359992 传真 0532-87670616 E-mail haiqinwelding@188.com.
-中碳钢的焊接工艺要点分析-新闻中心-青岛海琴焊接材料有限公司-焊条,电焊条,焊接电极,焊粉,泡花碱,焊丝
http://www.weldingchina.cn/news_detail/newsId=3.html
通常，35和 45钢的预热温度为150 250 含碳量再高或者因厚度和刚度很大，裂纹倾向大时，可将预热温度提高至250 400。 地址 青岛市四方区傍海南路43号 电话 15725323623 手机 15805329660/15194359992 传真 0532-87670616 E-mail haiqinwelding@188.com.
青岛海琴焊接材料有限公司-焊条,电焊条,焊接电极,焊粉,泡花碱,焊丝
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地址 青岛市四方区傍海南路43号 电话 15725323623 手机 15805329660/15194359992 传真 0532-87670616 E-mail haiqinwelding@188.com.
关于我们-青岛海琴焊接材料有限公司-焊条,电焊条,焊接电极,焊粉,泡花碱,焊丝
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地址 青岛市四方区傍海南路43号 电话 15725323623 手机 15805329660/15194359992 传真 0532-87670616 E-mail haiqinwelding@188.com.
---青岛海琴焊接材料有限公司-焊条,电焊条,焊接电极,焊粉,泡花碱,焊丝
http://www.weldingchina.cn/products_detail/&productId=33.html
地址 青岛市四方区傍海南路43号 电话 15725323623 手机 15805329660/15194359992 传真 0532-87670616 E-mail haiqinwelding@188.com.
---青岛海琴焊接材料有限公司-焊条,电焊条,焊接电极,焊粉,泡花碱,焊丝
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地址 青岛市四方区傍海南路43号 电话 15725323623 手机 15805329660/15194359992 传真 0532-87670616 E-mail haiqinwelding@188.com.
-钢结构安装焊接施工技术-新闻中心-青岛海琴焊接材料有限公司-焊条,电焊条,焊接电极,焊粉,泡花碱,焊丝
http://www.weldingchina.cn/news_detail/newsId=2.html
试验钢材包括Q345GJC-Z15 壁厚70mm 、Q345GJC-Z15 壁厚40mm 、Q345C 翼缘厚28mm ，焊接位置为柱—柱横焊、柱—梁平焊 包括桁架梁上下翼缘平焊 、T型角立焊。 3 CO2气体纯度应不低于99.9% 体积比 ，含水量应低于0.05% 重量比 ，瓶内高压低于1MPa时应停止使用。 焊接的一般顺序为 焊前检查 →预热除锈 → 装焊垫板和引弧板→ 焊接 → 检验. CO2气保焊 焊丝直径Φ1.2mm，电流280 320A，焊速350 450mm/min. CO2气保焊 焊丝直径φ1.2mm，电流280 360A，焊速300 500mm/min. 地址 青岛市四方区傍海南路43号 电话 15725323623 手机 15805329660/15194359992 传真 0532-87670616 E-mail haiqinwelding@188.com.
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Qingdao Haiqin Welding Material Co.,Ltd.
Qingdao Haiqin Welding Material Co.,Ltd. Is located in the beautiful coastal city - Qingdao, location, traffic, transportation is very convenient. Companies from less than 1 hour from Qingdao port. Strong technology, advanced equipment, strict management, coupled with the tireless efforts of staff, to create a high quality haiqin Brand welding electrodes. Welding of the development trend . Points in the analysis of carbon . Interpretation of the principle o. Electrode arc welding bath temper.
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