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中华棋牌

关于低温碳钢的焊接有哪些要点

2018年09月22日

  DIWENGANGDEHANJIE

中华棋牌  TONGCHANGBA-10~-196℃DEWENDUFANWEICHENGWEI“DIWEN”(WOGUOCONG-40℃SUANQI),DIYU-196℃SHICHENGWEI“CHAODIWEN”。DIWENGANGZHUYAOSHIWEILESHIYINGNENGYUAN、SHIYOUHUAGONGDENGCHANYEBUMENDEXUYAOERXUNSUFAZHANQILAIDEYIZHONGZHUANYONGGANG。DIWENGANGYAOQIUZAIDIWENGONGZUOTIAOJIANXIAJUYOUZUGOUDEQIANGDU、SUXINGHERENXING,TONGSHIYINGJUYOULIANGHAODEJIAGONGXINGNENG,ZHUYAOYONGYUZHIZAO-20~-253℃DIWENXIAGONGZUODEHANJIEJIEGOU,RUZHUCUNHEYUNSHUGELEIYEHUAQITIDERONGQIDENG。

  1、 HANJIEFANGFAJIRESHURUDEXUANZE

  CHANGYONGDEHANJIEFANGFAYOUHANTIAODIANHUHAN、MAIHUZIDONGHAN、WUJIYAHUHAN、RONGHUAJIQITIBAOHUHAN。

中华棋牌  DIHEJINDIWENYONGGANGHANJIESHI,WEIBIMIANHANFENGJINSHUJIJINFENGQUXINGCHENGCUDAZUZHIERJINLIANGBUBAIDONG,CAIYONGZHAIHANDAO、DUODAODUOCENGHAN,HANJIEDIANLIUBUYIGUODA,YIYONGKUAISUDUODAOHANYIJIANQINGHANDAOGUORE,BINGTONGGUODUOCENGHANDEZHONGREZUOYONGXIHUAJINGLI。DUODAOHANSHI,YAOKONGZHIDAOJIANWENDU,YINGCAIYONGXIAODERESHURUSHIHAN,KONGZHIZAI20KJ/cmYIXIA。RUGUOXUYAOYURE,YINGYANGEKONGZHIYUREWENDUJIDUOCENGDUODAOHANSHIDEDAOJIANWENDU。

  HANJIEXIANNENGLIANGYEJIAOHANJIERESHURU,SHIDANWEIZHANGDUHANFENGDEDAODEHANJIEDIANHURELIANG。

中华棋牌  GONGSHI   E=U?I/v(JIAOER/LIMI) QIZHONGU:DIANHUDIANYA(FUTE),I:HANJIEDIANLIU

中华棋牌  (ANPEI),v:HANJIESUDU(LIMI/FEN)。

  HANJIEXIANNENGLIANGSHIYINGXIANGHANJIEJIEJIXIETOUXINGNENGDEZHONGYAOYINSU。DANGHANJIEDIANLIU、DIANHUDIANYAZENGDASHI,HANJIEXIANNENGLIANGZENGDA,DANGHANJIESUDUJIANXIAOSHI,HANJIEXIANNENGLIANGZENGDA。

  DUIYUDIWENGANG,HANJIEXIANNENGLIANGGUODA,JIETOURENXINGDEXIAJIANGGENGWEIYANZHONG,SHIYALIRONGQIZAIDIWENZHUANGKUANGXIAYUNXINGSHIYIFASHENGSHUNJIANDEPOHUAI。 SUOYIHANJIESHI,YAOYANGEKONGZHIHANJIEDIANLIU、DIANHUDIANYA、HANJIESUDU,BAOZHENGHANJIEJIETOUDEGEXIANGXINGNENGZHIBIAO。

中华棋牌  2、DIWENGANGDEHANJIETEDIANJIQIGONGYICUOSHI

  低温钢由于含碳量低,其淬硬倾向和冷裂倾向小,具有良好的焊接性。但是过大的焊接线能量会使焊缝及热影响区形成粗晶组织而使低温韧性大为降低,结构的突变及制造中的强力组对会使结构的局部产生高的应力,从而增大设备在低温状态下的脆性破坏。 为此,德州乐瀚焊材有限公司在焊接过程中会做到以下几点:

中华棋牌  ⑴CAIYONGXIAODEHANJIEXIANNENGLIANG,ZUIDAXIANDUDEJIANSHAOGUORE,FANGZHIZAIHANJIEJIETOUSHANGCHUXIANCUDADEZUZHI。HANTIAODIANHUHANCHANGCAIYONG12-15KJ/cm,MAIHUHANTONGCHANGWEI20KJ/cm。WEICIHANTIAODIANHUHANJINLIANGBUYONGφ5HANTIAO,MAIHUZIDONGHANDUOXUANYONGφ3.2HANSI,HANTIAODIANHUHANMEICENGYUE2mm,MAIHUZIDONGHANYUE2.5mm。

中华棋牌  ⑵CAIYONGZHIHANDAO,DUODAOKUAISUYAHAN。MUDESHIWEILEJIANSHAOGUOREHEHOUYIHANDAODUIQIANYIHANDAOYOUHUIHUOZUOYONG,SHIJINGLIXIHUA。

  ⑶BIMIANQIANGLIZUDUI,SHIJIEGOUJUBUBUCHANSHENGYINGLIJIZHONGXIANXIANG。

中华棋牌  ⑷JINKENENGJIANGDIHANDAOJIANDECENGJIANWENDU,BIMIANHANDAOZHANGSHI

中华棋牌  JIANCHUYUGAOWENZHUANGTAI,JINLIANGZUODAOBULIANXUSHIHAN。

中华棋牌  ⑸TONGCHANGXUANYONGCHAODIQINGHANTIAOJIHANJI,SUOYIZAIHANQIANYAOYANGEANHONGGANZHIDUJINXINGHONGGANCHULI,LINGYONGDEHANTIAOCHAOGUO4XIAOSHIWEIYONGWAN,YINGFANHUIERJIKUZHONGXINHONGGANZAISHIYONG。LINGWAIDUIYUDIWENGANGHANTIAO,SHIYONGQIANYAOANXIANGGUANBIAOZHUNJINXINGRONGFUJINSHUKUOSANQINGFUYAN,TONGCHANGCAIYONGSHUIYINFA,ANGB/T3965-2012 ZHIXING,HEBIAOZHIBIAOFUHESHEJIYAOQIU。

  ⑹ ZAIDONGJISHIGONGJIHOUDUJIAODADEJIEGOU,YINGSHIDANGJINXINGYURE,ZHISHAOYUREDAO15℃YISHANG。DUIYUDAHOUBANHANJIE,YUREWENDUYIBANWEI50℃,DAOJIANWENDUKONGZHIZAI50~150℃ZHIJIAN。

中华棋牌  (7)YINHUXUCAIYONGYINHUBANHUOZAIPOKOUNEIYINHU,BUDEZAIFEIHANJIEBUWEIYINHU。

  (8)DIWENGANGHANHOUXIAOCHUYINGLIRECHULIKEYIJIANGDIDIHEJINGANGHANJIECHANPINDECUIDUANWEIXIANXING。

  CHANGYONGDIWENGANGHANJIECAILIAODEXUANZE

  16MnDR:

  J507GR,J507RH,——E5015-GHUOE5016-G H10Mn2 SJ101——F5P4-H10Mn2  09MnNiDR:

中华棋牌  W707Ni,W807Ni——E5515-N5 E7015-C1L,E7016-C1L F7P7-ENi2-Ni2

  H07MnNDR SJ603W——F5P7-H07MnNiDR 08Ni3DR:DUIYUWENDUDIYU-100℃,YIBANXUANJINKOUHANCAI E7015-C2L,E7016-C2L F7P15-ENi3-Ni3

  SA-203 Gr.D SHIASMECAILIAO,YAOQIU-101℃CHONGJI  E7016-C2L F7P15-ENi3-Ni3

  DIWENYALIRONGQIDEHANJIEJIANYAN

  1、 GUGUIYAOQIU:DUIYUSHEJIWENDUDIYU-40℃DEDIHEJINGANG

  ZHIDIWENYALIRONGQISHANGDEHANJIEJIETOUYAOJINXING100%MTJIANCE,ANJB/T4730.4-2005 IJIHEGE。

中华棋牌  2、 RUSHEJIZHIXINGHG20584,DUIYUYOUCHAOSHENGJIANCEYAOQIUDE

中华棋牌  DIWENGANGCAIDEHANJIE,POKOUBIAOMIANJIQINGGENHOUDEPOKOUBIAOMIANYINGJINXING100%MTJIANZE,ANJB/T4730.5-2005 IJIHEGE。

中华棋牌  3、 DIWENXIAYOUQUEXIANYINQIDEYINGLIJIZHONGJIANGZENGDAJIEGOUDI

  WENCUIXINGPOPOQINGXIANG。YINGZHUYIBIMIANHUKENG、WEIRONGTOUJIHANFENGCHENGXINGBULIANGDENGQUEXIAN。TONGCHANGYONGQINGKUANGXIA,HANFENGYUGAOJINLIANGJIANSHAO,YOUSHIYAOQIUHANHOUMOPING;JIAOJIEJIETOUYINGYUANHUA,BUYUNXUXIANGWAITUQI,HANFENGYUANHUADUCHAHUOCHENGXINGBULIANGZHEBIXUDAMO;HANFENGBIANYUANBUDECUNZAIYAOBIAN。

中华棋牌  4、 DIWENRONGQIBIAOMIANBUDECAIYONGGANGYINBIAOJI。


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