辽宁福彩35选7开奖结果查询

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如何焊接PPR管材 确保PP-R管材焊接质量的步骤

2019-08-01

一、必须选择质量合格的热熔焊机。

⑴WENDUKONGZHIYAOZHENGQUE。PP-RRERONGHANJIEWENDUWEI:253℃-274℃。RUGUOWENDUDIYU253℃,GUANZIHEGUANJIANJINJINSHIBOBODEBIAOMIANYICENGDERONGHUA,YIDANTAMENZHIJIANJINXINGRONGJIE,QIRONGJIEDEQIANGDUJIUDEBUDAOBAOZHENG,ZHEIJIUSHIWOMENTONGCHANGSUOSHUODEJIAHANXIANXIANG;FANZHI,RUGUOWENDUGAOYU274℃,GUANZIHEGUANJIANDEBIAOMIANFENZIZAODAOGAOWENDEPOHUAI,SHIDEPP-RXINGCHENGXIBODEYETI,LIANJIEHOUHUISHIGUANZINEIJINGBIANXIAO,GENGZHONGYAODESHI,LIANJIEBUFENHUIFASHENGCUILIE,YOUQISHIZAIGUANLUXITONGQUANBUWANGONGHOUJINXINGTONGSHUIJIAYA,JINGCHANGHUIFASHENGCILEIWENTI。

⑵HENGWENSHIJIANYAOZHANG。HENGWENSHIJIANDEZHANGDUANSHIRERONGHANJIESHEBEIXINGNENGHAOHUAIDEZHONGYAOBIAOZHIZHIYI。RERONGSHEBEIZAISHENGWENZHISHEDINGWENDUHOURENGYOUYIGERELIANGXIAOHAODEWENTI,TEBIESHIZAIDONGJI,FENGKOUCHU,JIBIANSHIZAIFEIZUOYEJIANXI,QIREHAOYESHIHENDADE,ERYIDANZUOYESHI,QIGUANZIHEGUANJIANDOUZAIFENBIEXIAOHAORENENG,ZHEIJIUYAOQIUSHEBEIYOUHENQIANGDERENENGCHUCUNNENGLIHEJISHIBUCHONGNENGLI。

二、必须选择合格和合适的焊套。

HEGEDEHANTAOZAISHEJISHISHICHONGFENKAOLVLEGUANZIHANJIEHOUDEHENGMIANJIEGOUHEHANJIESHENDU,YIJIBIAOMIANBUZHANXINGHEBIAOMIANGUANGJIEXING。MUQIAN,GUONEISHENGCHANDEYONGRERONGFANGFAHANJIEPP-R,PPC,PEDENGJISHUIGUANDECHANGJIAYOUJIBAIJIA。YOUYUGEJIACHANGJIASHENGCHANDEGUANZISUOYONGDEYUANCAILIAO,ZHUJIBUTONG,HUANJINGTIAOJIANBUTONG,SHEBEIXUANZEBUTONG,SHIDEGEJIASUOSHENGCHANDEGUANZIHEGUANJIANCHICUNYEBUJINXIANGTONG。YINCI,GEJIAGUANCAISHENGCHANCHANGJIAJISHIYONGZHEBIXUXUANZESHIHEZIJIGUANCAIKOUJINGDEHANTAO。DUICAOZUOZHELAISHUO,MOCIHANJIEHOUYINGDUIHANTAOBIAOMIANJINXINGBIYAODEQINGJIE,YIMIANHANJIEBUFENYOUZAZHI。

DUIYU40mmKOUJINGYISHANGDEGUANCAIJINXINGHANJIESHI,YOUYUKOUJINGJIAODA,FEIGERENLILIANGSUONENGZUOYE,BIXUSHIYONGJIXIESHEBEICAINENGBAOZHENGGUANZIJINRUGUANJIANDESHENDUHEZHIDU。WOMENFAXIANZAIXUDUOGONGDISHANGYONGWUZHILIUMINGGONGRENDUIYIGE110mmKOUJINGDEJIEKOUJINXINGHANJIE,FEIJIUNIUERHUZHILIYEBUNENGBAOZHENGGUANZIZHIDUJICHARUSHENDU,ZHENGGEGUANXIANWANWANQUQU,HENNANXIANGXIANGZAIYIDINGDESHUIWENHEYALIXIADEZHUANGKUANG。

三、热熔焊接中易发生的问题。

YINGGAISHUOYANGEANZHAORONGJIEGONGYIHERONGJIEJISHUDEYAOQIUJINXINGSHIGONGCAOZUODEGUANLUXITONG,ZAICHANGWENCHANGYAXIASHIYONGSHIBUHUIYOURENHEWENTIDE。DANWOMENZAIRICHANGSHIGONGZHONGJINGCHANGFAXIANZAIGUANZIHEGUANJIANDELIANJIECHUHUIFASHENGBAOLIEXIANXIANGHUOSHAYAN。

主要原因有下列几个方面:

⑴RERONGHANJIWENDUBUZHENGQUE,TAIGAOHUOTAIDI,SHIJUBINGXIXINGNENGFASHENGBIANHUA;

⑵HANTAOBIAOMIANMEIYOUCHULIHAO,HUOBIAOMIANTUCENGTUOLUOSHIDEYUGUANZIJIECHUBUFENCHANSHENGSHAYAN;

⑶HANTAOCHICUNBUDUI,SHEJIBUDUI,SHIDEGUANZIDERONGHUASHENDUYURONGJIEJIEGOUBUQIADANG;

⑷HANJIEQIANMEIYOUDUIGUANZIDEHANJIEBIAOMIANJINXINGQINGJIECHULI;

⑸HANJIEDEGUANZIYUGUANJIANMEIYOUBAOCHITONGXINHUOZHIXIAN。

四、正确的焊接操作规程。

⑴热熔焊接前的准备工作

①DUIYUWAIJING25-110mmDEGUANZIYAODAOJIAOQIDUIGUANZIDUANKOUJINXING15°DAOJIAOZHIYUANGUANBIHOUDEYIBAN;

②YONGQINGJIEJI(HUOJIUJING)HESHUAZIDUIGUANZIDEHANJIEBUFENBIAOMIANJINXINGQINGJIE;

③DANGYUZUZHUANGDEBUJIANZUORONGJIESHI,LIANJIEQIANZAIGUANZIYUGUANJIANSUOYAOQIUDEWEIZHISHANGZUOCHUBIAOJI。

④40mmKOUJINGYISHANGDEGUANCAIHANJIEBIXUSHIYONGPINGMIANHESHUGUANHANJIEJI;

⑤MEICIRONGJIEHOU,JUNYAOYONGGANBUHUOGANZHICAJINGJIARETAOHEJIARETOU,BUYAOYONGQINGJIEJI。

⑵热熔和连接

①JIANGGUANZIHEGUANJIANFENBIECHARUJIARETAOHEJIARETOUHOU,BUYAOXUANZHUAN,YEBUYAOTAIKUAIYIDONG(YAOSHICAILIAOYOUZUGOURONGHUASHIJIAN)。

②JIAREHOU,JIANGGUANZIHEGUANJIANCONGJIAREYUANJIANSHANGYICHU,BUYAOXUANZHUANJIAREBUFEN。

③JIAREHOULIJIJIANGGUANZIHEGUANJIANYANZHOUXIANWANGYIQIYA,BUYAOZHUANDONG。YANGEZUNSHOURERONGHANJIEBIAOZHUNDEBAOCHISHIJIANHELENGQUESHIJIAN。


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