CN106334884B - 一种桥梁钢用高强高韧气保护药芯焊丝 - Google Patents
一种桥梁钢用高强高韧气保护药芯焊丝 Download PDFInfo
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Abstract
本发明提供了一种桥梁钢用高强高韧气保护药芯焊丝,包括外皮和被外皮包裹的药芯,所述药芯包括如下重量分数的成分,金红石30%~50%、长石2%~8%、石英1%~6%﹑锆石英0.5%~5%、氟化钠0.5%~5%﹑氟化锂0.1%~1.5%、钾钠稳弧剂1%~8%、硅锰合金10%~25%、金属锰1%~8%、镁粉1%~6%、镍粉5%~15%、钛铁0.1%~1.5%、硼铁0.05%~0.6%、余量为铁粉,以上成分的重量分数合计为100%。本发明所述的焊丝,其各项成分、性能均能满足高强度级别钢板的工程使用要求;尤其适用于Q500qE的焊接。
Description
技术领域
本发明属于焊接材料技术领域,尤其是涉及一种桥梁钢用高强高韧气保护药芯焊丝。
背景技术
为了增加桥梁的强度,越来越多工程使用高强度级别的钢板,例如国内重大桥梁工程沪通长江大桥,使用高强度级别钢板牌号为Q500qE,多项技术指标高于GB/T 714-2008《桥梁用结构钢》要求。
但是现有的焊丝不能满足该种牌号钢板的工程使用要求,为了配和高性能Q500qE钢板的焊接工作,有必要研制开发一种该桥梁钢专用的气保护药芯焊丝。
发明内容
有鉴于此,本发明旨在提出一种桥梁钢用高强高韧气保护药芯焊丝,以配合高强度级别的钢板的使用;尤其适用于Q500qE钢板的使用。
为达到上述目的,本发明的技术方案是这样实现的:
一种桥梁钢用高强高韧气保护药芯焊丝,包括外皮和被外皮包裹的药芯,所述药芯包括如下重量分数的成分,金红石30%~50%、长石2%~8%、石英1%~6%﹑锆石英0.5%~5%、氟化钠0.5%~5%﹑氟化锂0.1%~1.5%、钾钠稳弧剂1%~8%、硅锰合金10%~25%、金属锰1%~8%、镁粉1%~6%、镍粉5%~15%、钛铁0.1%~1.5%、硼铁0.05%~0.6%、余量为铁粉,以上成分的重量分数合计为100%。本发明采用常规药芯过渡合金方式和通用的药粉规格及药芯焊丝生产工艺制造。
优选的,所述药芯包括如下重量分数的成分,金红石35%~45%、长石3%~6%、石英2%~4%﹑锆石英1%~3%、氟化钠1%~3%﹑氟化锂0.2%~1%、钾钠稳弧剂2%~5%、硅锰合金15%~20%、金属锰2%~5%、镁粉2%~5%、镍粉8%~12%、钛铁0.2%~1%、硼铁0.1%~0.5%、余量为铁粉,以上成分的重量分数合计为100%。
优选的,所述药芯包括如下重量分数的成分,金红石38%~42%、长石4%~5%、石英2.5%~3.5%﹑锆石英1.5%~2.5%、氟化钠1.5%~2.5%﹑氟化锂0.4%~0.8%、钾钠稳弧剂3%~4%、硅锰合金16%~19%、金属锰3%~4%、镁粉3%~4%、镍粉9%~11%、钛铁0.4%~0.8%、硼铁0.2%~0.4%、余量为铁粉,以上成分的重量分数合计为100%。
优选的,所述金红石中含有的二氧化钛的质量分数为95%。
优选的,所述外皮为SPCC-SD冷轧低碳钢钢带。
优选的,所述药芯占焊丝总重量的比例为12%~18%;优选的,13%~17%。
本发明还提供了如上所述的桥梁钢用高强高韧气保护药芯焊丝在桥梁钢焊接中应用。
本发明同时提供了如上所述的桥梁钢用高强高韧气保护药芯焊丝在Q500qE钢板焊接中的应用。
相对于现有技术,本发明所述的一种桥梁钢用高强高韧气保护药芯焊丝,具有以下优势:其熔敷金属抗拉强度、延伸率、冲击韧性等性能较优;熔敷金属扩散氢含量较低,并且具有良好的抗裂性能;其各项成分、性能均能满足高强度级别钢板的工程使用要求;尤其适用于Q500qE的焊接。
具体实施方式
需要说明的是,在不冲突的情况下,本发明中的实施例及实施例中的特征可以相互组合。
下面将结合实施例来详细说明本发明。
实施例一
一种桥梁钢用高强高韧气保护药芯焊丝,所述药芯包括如下重量分数的成分,金红石42%、长石4%、石英2.5%﹑锆石英1.5%、氟化钠1.5%﹑氟化锂0.4%、钾钠稳弧剂3%、硅锰合金16%、金属锰3%、镁粉3%、镍粉9%、钛铁0.4%、硼铁0.2%、余量为铁粉,以上成分的重量分数合计为100%。
所述金红石中含有的二氧化钛的质量分数为95%。
所述外皮为SPCC-SD冷轧低碳钢钢带。
所述药芯占焊丝总重量的比例为17%。
焊丝熔敷金属成分检测,其重量百分比为碳0.042%、硫0.006%、锰1.49%、硅0.38%、磷0.013%、铬0.019%、镍1.32%、钼0.007%、钒0.010%、余量为铁。
药芯焊丝熔敷金属性能:
实施例二
一种桥梁钢用高强高韧气保护药芯焊丝,所述药芯包括如下重量分数的成分,金红石40%、长石5%、石英3%﹑锆石英2%、氟化钠2%﹑氟化锂0.6%、钾钠稳弧剂4%、硅锰合金18%、金属锰4%、镁粉4%、镍粉10%、钛铁0.6%、硼铁0.3%、余量为铁粉,以上成分的重量分数合计为100%。
所述金红石中含有的二氧化钛的质量分数为95%。
所述外皮为SPCC-SD冷轧低碳钢钢带。
所述药芯占焊丝总重量的比例为15%。
焊丝熔敷金属成分检测,其重量百分比为碳0.043%、硫0.007%、锰1.52%、硅0.40%、磷0.012%、铬0.018%、镍1.35%、钼0.008%、钒0.013%、余量为铁。
药芯焊丝熔敷金属性能:
实施例三
一种桥梁钢用高强高韧气保护药芯焊丝,所述药芯包括如下重量分数的成分,金红石37%、长石5%、石英3.5%﹑锆石英2.5%、氟化钠2.5%﹑氟化锂0.8%、钾钠稳弧剂4%、硅锰合金19%、金属锰5%、镁粉5%、镍粉11%、钛铁0.8%、硼铁0.5%、余量为铁粉,以上成分的重量分数合计为100%。
所述金红石中含有的二氧化钛的质量分数为95%。
所述外皮为SPCC-SD冷轧低碳钢钢带。
所述药芯占焊丝总重量的比例为13%。
焊丝熔敷金属成分检测,其重量百分比为碳0.048%、硫0.007%、锰1.57%、硅0.43%、磷0.013%、铬0.021%、镍1.34%、钼0.009%、钒0.009%、余量为铁。
药芯焊丝熔敷金属性能:
以上所述仅为本发明创造的较佳实施例而已,并不用以限制本发明创造,凡在本发明创造的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明创造的保护范围之内。
Claims (9)
1.一种桥梁钢用高强高韧气保护药芯焊丝,包括外皮和被外皮包裹的药芯,其特征在于:所述药芯包括如下重量分数的成分,金红石30%~50%、长石2%~8%、石英1%~6%﹑锆石英0.5%~5%、氟化钠0.5%~5%﹑氟化锂0.1%~1.5%、钾钠稳弧剂1%~8%、硅锰合金10%~25%、金属锰1%~8%、镁粉1%~6%、镍粉5%~15%、钛铁0.1%~1.5%、硼铁0.05%~0.6%、余量为铁粉,以上成分的重量分数合计为100%。
2.根据权利要求1所述的桥梁钢用高强高韧气保护药芯焊丝,其特征在于:所述药芯包括如下重量分数的成分,金红石35%~45%、长石3%~6%、石英2%~4%﹑锆石英1%~3%、氟化钠1%~3%﹑氟化锂0.2%~1%、钾钠稳弧剂2%~5%、硅锰合金15%~20%、金属锰2%~5%、镁粉2%~5%、镍粉8%~12%、钛铁0.2%~1%、硼铁0.1%~0.5%、余量为铁粉,以上成分的重量分数合计为100%。
3.根据权利要求1所述的桥梁钢用高强高韧气保护药芯焊丝,其特征在于:所述药芯包括如下重量分数的成分,金红石38%~42%、长石4%~5%、石英2.5%~3.5%﹑锆石英1.5%~2.5%、氟化钠1.5%~2.5%﹑氟化锂0.4%~0.8%、钾钠稳弧剂3%~4%、硅锰合金16%~19%、金属锰3%~4%、镁粉3%~4%、镍粉9%~11%、钛铁0.4%~0.8%、硼铁0.2%~0.4%、余量为铁粉,以上成分的重量分数合计为100%。
4.根据权利要求1~3任一项所述的桥梁钢用高强高韧气保护药芯焊丝,其特征在于:所述金红石中含有的二氧化钛的质量分数为95%。
5.根据权利要求1~3任一项所述的桥梁钢用高强高韧气保护药芯焊丝,其特征在于:所述外皮为SPCC-SD冷轧低碳钢钢带。
6.根据权利要求1~3任一项所述的桥梁钢用高强高韧气保护药芯焊丝,其特征在于:所述药芯占焊丝总重量的比例为12%~18%。
7.根据权利要求6所述的桥梁钢用高强高韧气保护药芯焊丝,其特征在于:所述药芯占焊丝总重量的比例为13%~17%。
8.根据权利要求1~7任一项所述的桥梁钢用高强高韧气保护药芯焊丝在桥梁钢焊接中应用。
9.根据权利要求1~7任一项所述的桥梁钢用高强高韧气保护药芯焊丝在Q500qE钢板焊接中的应用。
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CN101450426B (zh) * | 2008-12-31 | 2010-12-15 | 宁波隆兴焊割科技股份有限公司 | 用于焊接低温钢的药芯焊丝 |
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CN102873475B (zh) * | 2012-09-18 | 2014-10-01 | 武汉铁锚焊接材料股份有限公司 | 一种超低氢高韧性的酸性co2药芯焊丝 |
CN104526179B (zh) * | 2014-12-02 | 2016-08-24 | 常州市正阳焊接材料有限公司 | 一种co2气体保护高韧性碳钢药芯焊丝 |
CN105269174B (zh) * | 2015-10-30 | 2017-09-15 | 武汉铁锚焊接材料股份有限公司 | 一种海洋工程用460MPa级药芯焊丝及其应用 |
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