45号无缝钢管电焊焊接时出現汽泡有关预防对策为：

　　1ZHUHANJICHENGFEN。DIANHANHANJIEDAIYOUSHIDANGDECaF2HESiO2SHI，HUIFANYINGXIAOHUAXISHOUHENDUODEH2，ZHUANHUACHENGKEKAOXINGHENGAOQIEBURONGJIEXINGZHUANGJIYIHEJINDEHF，JINERNENGGOUBIMIANDONGQIKONGDECHANSHENG。

　　2ZHUHANJIDECHENJIBOHOUYIBANWEI25-45mm，ZHUHANJIKELIWUDUDA、XIANGDUIMIDUZHONGTOUCHENJIBOHOUQU******ZHI，XIANGFANQUJIAOXIAOZHI;DADIANLIULIANG、DIHANSUCHENJIBOHOUQU******ZHI，XIANGFANQUJIAOXIAOZHI，CHUCIZHIWAI，XIAJIHUOXIANGDUISHIDUDASHI，SHOUGOUDEZHUHANJIYINGFENGGANHOUZAIYINGYONG。

广东麻将　　340crWUFENGGUANJINSHUBIAOMIANCHULI。WEIFANGZHIFANGJUANJIJIAOPINGDIAOXIALAIDEYANGHUATIEPIDENGZANGWUJINDAOCHENGXINGGONGYILIUCHENG，YINGSHEDINGBIAOMIANQINGLISHEBEI。

　　440crWUFENGGUANBANBIANJIEJUE。40crWUFENGGUANBANBIANYINGSHEDINGXIUJIHEMAOBIANXIAOCHUSHEBEI，YIJIANGDIZAOCHENGCHUQIKONGDEJIANGHUI。XIAOCHUSHEBEIDEBUWEI******SHIANZHUANGZAIXIANBIANJIHEYUANPANJIANHOU，SHEBEIDEGOUZAOSHIYIBIAN2GEZUOYOUBUWEIKEDIAOJIEKONGXIDEJIJIGANGSILUN，ZUOYOUKAJINBANBIAN。

广东麻将　　YIQISHENGCHANZHIZAOJIAGONGGONGYIBUYIYANG，YOUFENCHENGREZHA(JIYACHENGXING)WUFENGGUANHELENGLA(YA)WUFENGGUANERZHONG。LENGLA(YA)GUANYOUFENCHENGHUANXINGGUANHEYIXINGGUANERZHONG。

　　45号无缝钢管生产流程

广东麻将　　REZHA(JIYACHENGXINGWUFENGGUAN)：YUANJINGYAGUAN→JIAWEN→POKONG→SANGUNXIEYA、LIANYAHUOJIYACHENGXING→TUOGUAN→KOUMO(HUOJIANJING)→ZHILENG→PIGUAN→XIAOZHI→DAYASHIYAN(HUOTANSHANGJIANCE)→BIAOSHI→JINKU。

　　LENGLA(YA)WUFENGGUAN：YUANLIULIUJINGYAGUAN→JIAWEN→POKONG→KAITOU→CUIHUO→SUANXIDUNHUA→MOYOU(GUNDU)→DUODAOCILENGLA(LENGZHA)→PIGUAN→DIAOZHICHULI→XIAOZHI→DAYASHIYAN(TANSHANGJIANCE)→BIAOSHI→JINKU。

　　TANSUGANG：a.GAOHEJINGANG(LVHEJINYUANSUZONGHANSHUILIANG≤5%)b.ZHONGTANSUGANG(LVHEJINYUANSUZONGHANSHUILIANG>5~10%)c.GAOHEJINGANG(LVHEJINYUANSUZONGHANSHUILIANG>10%

　　CUIHUOBIAOZHUN：40crWUFENGGUANZHENGHUOWENDU850-870℃，CUIHUOHOUQIANGDU179-229HBS。

　　LENGYAMAOPIBIANRUANJIEJUEBIAOZHUN：WENDU740~760℃，GEREBAOWENSHIJIAN4~6h，YI50~100℃/hDELENGSU，SUILUJIANGDAOWENDU≤600℃，GONGBUKONGLENG.JIEJUEQIANQIANGDU≤217HBS，JIEJUEHOUQIANGDU≤163HBS。