2.以(yi)(yi)(yi)制作(zuo)方法(fa)(fa)(fa)(fa)(fa)划分(fen)(fen)可(ke)分(fen)(fen)为(wei)推制、压制、锻制、铸(zhu)造(zao)等(deng)(deng)(deng)。3.以(yi)(yi)(yi)制造(zao)标(biao)(biao)(biao)准(zhun)划分(fen)(fen)可(ke)分(fen)(fen)为(wei)国(guo)(guo)标(biao)(biao)(biao)、电标(biao)(biao)(biao)、船标(biao)(biao)(biao)、化(hua)标(biao)(biao)(biao)、水标(biao)(biao)(biao)、美(mei)标(biao)(biao)(biao)、德标(biao)(biao)(biao)、日(ri)标(biao)(biao)(biao)、俄(e)标(biao)(biao)(biao)等(deng)(deng)(deng)。4.按它(ta)(ta)的(de)曲(qu)率(lv)半(ban)(ban)(ban)径(jing)(jing)(jing)来分(fen)(fen)：可(ke)分(fen)(fen)为(wei)长半(ban)(ban)(ban)径(jing)(jing)(jing)弯(wan)(wan)头(tou)和短半(ban)(ban)(ban)径(jing)(jing)(jing)弯(wan)(wan)头(tou)。长半(ban)(ban)(ban)径(jing)(jing)(jing)弯(wan)(wan)头(tou)指(zhi)它(ta)(ta)的(de)曲(qu)率(lv)半(ban)(ban)(ban)径(jing)(jing)(jing)等(deng)(deng)(deng)于(yu)，即(ji)R=；短半(ban)(ban)(ban)径(jing)(jing)(jing)弯(wan)(wan)头(tou)指(zhi)它(ta)(ta)的(de)曲(qu)率(lv)半(ban)(ban)(ban)径(jing)(jing)(jing)等(deng)(deng)(deng)于(yu)管(guan)(guan)(guan)(guan)(guan)子(zi)外(wai)径(jing)(jing)(jing)，即(ji)R=。（D为(wei)弯(wan)(wan)头(tou)直(zhi)径(jing)(jing)(jing)，R为(wei)曲(qu)率(lv)半(ban)(ban)(ban)径(jing)(jing)(jing)）。5.若按压力等(deng)(deng)(deng)级来分(fen)(fen)：大约有十七种，和美(mei)国(guo)(guo)的(de)管(guan)(guan)(guan)(guan)(guan)子(zi)标(biao)(biao)(biao)准(zhun)是相同的(de)，有：Sch5s、Sch10s、Sch10、Sch20、Sch30、Sch40s、STD、Sch40、Sch60、Sch80s、XS;Sch80、SCH100、Sch120、Sch140、Sch160、XXS;其中非(fei)常(chang)常(chang)用的(de)是STD和XS两(liang)种。同心(xin)大小(xiao)头(tou)标(biao)(biao)(biao)准(zhun)体系编辑(ji)国(guo)(guo)际(ji)上管(guan)(guan)(guan)(guan)(guan)法(fa)(fa)(fa)(fa)(fa)兰(lan)(lan)(lan)(lan)标(biao)(biao)(biao)准(zhun)主要(yao)有两(liang)个(ge)体系，即(ji)以(yi)(yi)(yi)德国(guo)(guo)DIN（包括原(yuan)苏(su)联）为(wei)表示(shi)的(de)欧(ou)洲(zhou)管(guan)(guan)(guan)(guan)(guan)法(fa)(fa)(fa)(fa)(fa)兰(lan)(lan)(lan)(lan)体系和以(yi)(yi)(yi)美(mei)国(guo)(guo)ANSI管(guan)(guan)(guan)(guan)(guan)法(fa)(fa)(fa)(fa)(fa)兰(lan)(lan)(lan)(lan)为(wei)表示(shi)的(de)美(mei)洲(zhou)管(guan)(guan)(guan)(guan)(guan)法(fa)(fa)(fa)(fa)(fa)兰(lan)(lan)(lan)(lan)体系。除(chu)此(ci)之外(wai)，还有日(ri)本JIS管(guan)(guan)(guan)(guan)(guan)法(fa)(fa)(fa)(fa)(fa)兰(lan)(lan)(lan)(lan)，但在石油化(hua)工装置中一般只(zhi)用于(yu)公(gong)用工程，而且(qie)在国(guo)(guo)际(ji)上影响较小(xiao)。现将各(ge)国(guo)(guo)管(guan)(guan)(guan)(guan)(guan)法(fa)(fa)(fa)(fa)(fa)兰(lan)(lan)(lan)(lan)简介于(yu)下：1，以(yi)(yi)(yi)德国(guo)(guo)及原(yuan)苏(su)联为(wei)表示(shi)的(de)欧(ou)洲(zhou)体系管(guan)(guan)(guan)(guan)(guan)法(fa)(fa)(fa)(fa)(fa)兰(lan)(lan)(lan)(lan)2，美(mei)洲(zhou)体系管(guan)(guan)(guan)(guan)(guan)法(fa)(fa)(fa)(fa)(fa)兰(lan)(lan)(lan)(lan)标(biao)(biao)(biao)准(zhun)，以(yi)(yi)(yi)ANSIB表示(shi)3，英国(guo)(guo)和法(fa)(fa)(fa)(fa)(fa)国(guo)(guo)管(guan)(guan)(guan)(guan)(guan)法(fa)(fa)(fa)(fa)(fa)兰(lan)(lan)(lan)(lan)标(biao)(biao)(biao)准(zhun)，两(liang)国(guo)(guo)各(ge)有两(liang)套(tao)管(guan)(guan)(guan)(guan)(guan)法(fa)(fa)(fa)(fa)(fa)兰(lan)(lan)(lan)(lan)标(biao)(biao)(biao)准(zhun)。综上所(suo)述(shu)，国(guo)(guo)际(ji)上通用的(de)管(guan)(guan)(guan)(guan)(guan)法(fa)(fa)(fa)(fa)(fa)兰(lan)(lan)(lan)(lan)标(biao)(biao)(biao)准(zhun)可(ke)概括为(wei)两(liang)个(ge)不同的(de)，且(qie)不能互换的(de)管(guan)(guan)(guan)(guan)(guan)法(fa)(fa)(fa)(fa)(fa)兰(lan)(lan)(lan)(lan)体系：一个(ge)以(yi)(yi)(yi)德国(guo)(guo)为(wei)表示(shi)的(de)欧(ou)洲(zhou)管(guan)(guan)(guan)(guan)(guan)法(fa)(fa)(fa)(fa)(fa)兰(lan)(lan)(lan)(lan)体系。温州伟诚管(guan)(guan)(guan)(guan)(guan)件有限公(gong)司(si)为(wei)您提(ti)供(gong)碳(tan)素钢(gang)大小(xiao)头(tou)设(she)备(bei)，期待为(wei)您设(she)备(bei)！四川316L大小(xiao)头(tou)

供您所需(xu)supplyallyouneed应用(yong)于多(duo)个行业(ye)：家装(zhuang)给水(shui)(shui)(shui)|市(shi)政(zheng)供水(shui)(shui)(shui)|二(er)次供水(shui)(shui)(shui)|采暖供暖|工(gong)(gong)业(ye)流体|天(tian)然气等满(man)足不(bu)(bu)同客户(hu)的(de)需(xu)求(qiu)：家庭饮(yin)水(shui)(shui)(shui)|市(shi)政(zheng)环(huan)保|工(gong)(gong)厂(chang)给排水(shui)(shui)(shui)|自来水(shui)(shui)(shui)入(ru)户(hu)|小区直饮(yin)水(shui)(shui)(shui)等超(chao)高(gao)性(xing)价比(bi)的(de)不(bu)(bu)锈(xiu)钢水(shui)(shui)(shui)管(guan)(guan)，不(bu)(bu)锈(xiu)钢管(guan)(guan)件(jian)产品，产品质(zhi)(zhi)量(liang)(liang)符(fu)合中国GB、美国ASTM、日(ri)本JIS等规范(fan)交(jiao)期(qi)及(ji)时(shi)PROMPTDELIVERY交(jiao)货(huo)期(qi)及(ji)时(shi)，服务(wu)态度好(hao)，售(shou)后(hou)服务(wu)有(you)(you)保障强(qiang)烈(lie)的(de)责(ze)任感(gan)(gan)，使命感(gan)(gan)，不(bu)(bu)断追求(qiu)质(zhi)(zhi)的(de)提升(sheng)，量(liang)(liang)的(de)突破，满(man)足客户(hu)需(xu)求(qiu)品种全(quan)(quan)、规格齐(qi)、价格优、质(zhi)(zhi)量(liang)(liang)好(hao)、服务(wu)佳01全(quan)(quan)新材料(liao)，防锈(xiu)力强(qiang)，避免(mian)加工(gong)(gong)时(shi)出现的(de)质(zhi)(zhi)量(liang)(liang)问(wen)题02尺寸(cun)精细，焊道平整，安(an)全(quan)(quan)可控(kong)，适合装(zhuang)配(pei)03表(biao)面光洁外焊缝打磨细腻，适合抛精光、镜(jing)光、电镀市(shi)面上(shang)的(de)劣质(zhi)(zhi)产品01回炉翻新料(liao)，容(rong)易生(sheng)锈(xiu)，容(rong)易在折弯、扩口、锥管(guan)(guan)时(shi)开裂造成安(an)全(quan)(quan)隐患02偷(tou)工(gong)(gong)减料(liao)，尺寸(cun)不(bu)(bu)准，焊道不(bu)(bu)平，无法装(zhuang)配(pei)03有(you)(you)沙孔(kong)、压伤、咬边(bian)、拉伤、碰伤等。山西国产大小头(tou)厂(chang)家温州伟诚管(guan)(guan)件(jian)有(you)(you)限公(gong)司致力于提供碳素(su)钢大小头(tou)设备(bei)，期(qi)待(dai)您的(de)光临！

国标(biao)）GD0506（电(dian)(dian)(dian)力部(bu)(bu)(bu)(bu)标(biao)准(zhun)）JB81，JB/T74（机械部(bu)(bu)(bu)(bu)标(biao)准(zhun)）SH3406（石化部(bu)(bu)(bu)(bu)标(biao)准(zhun)）HG5010，HG20592（化工部(bu)(bu)(bu)(bu)标(biao)准(zhun)）当吸水(shui)时,吸水(shui)管(guan)(guan)(guan)(guan)(guan)段的(de)(de)(de)(de)(de)水(shui)压(ya)降低,原(yuan)来(lai)溶解在(zai)水(shui)中(zhong)的(de)(de)(de)(de)(de)气(qi)体(ti)(ti)会离析出(chu)(chu)来(lai),如果用(yong)(yong)的(de)(de)(de)(de)(de)是同心的(de)(de)(de)(de)(de)异(yi)径(jing)(jing)(jing)(jing)(jing)管(guan)(guan)(guan)(guan)(guan),这(zhei)些气(qi)体(ti)(ti)不(bu)能及(ji)时排出(chu)(chu),会积聚堵(du)塞在(zai)突起处(chu)，形(xing)成(cheng)(cheng)(cheng)(cheng)(cheng)气(qi)阻(zu)。水(shui)泵也会出(chu)(chu)现噪声(sheng)且输(shu)水(shui)能力极大(da)(da)下降。如果用(yong)(yong)偏心异(yi)径(jing)(jing)(jing)(jing)(jing)管(guan)(guan)(guan)(guan)(guan),离析出(chu)(chu)的(de)(de)(de)(de)(de)气(qi)体(ti)(ti)会及(ji)时排出(chu)(chu),不(bu)会形(xing)成(cheng)(cheng)(cheng)(cheng)(cheng)气(qi)阻(zu).当管(guan)(guan)(guan)(guan)(guan)径(jing)(jing)(jing)(jing)(jing)本身不(bu)大(da)(da),前后管(guan)(guan)(guan)(guan)(guan)径(jing)(jing)(jing)(jing)(jing)差不(bu)大(da)(da)的(de)(de)(de)(de)(de)时候(hou),用(yong)(yong)同心异(yi)径(jing)(jing)(jing)(jing)(jing)管(guan)(guan)(guan)(guan)(guan),可(ke)能气(qi)阻(zu)现象(xiang)不(bu)那么明显(xian),自吸式在(zai)吸水(shui)过程中(zhong)的(de)(de)(de)(de)(de)气(qi)压(ya)变(bian)(bian)化不(bu)那么大(da)(da),所以危害(hai)没有体(ti)(ti)现出(chu)(chu)来(lai).电(dian)(dian)(dian)标(biao)大(da)(da)小(xiao)(xiao)头的(de)(de)(de)(de)(de)制(zhi)作：电(dian)(dian)(dian)标(biao)大(da)(da)小(xiao)(xiao)头（异(yi)径(jing)(jing)(jing)(jing)(jing)管(guan)(guan)(guan)(guan)(guan)）是用(yong)(yong)于(yu)管(guan)(guan)(guan)(guan)(guan)道变(bian)(bian)径(jing)(jing)(jing)(jing)(jing)处(chu)的(de)(de)(de)(de)(de)一(yi)种管(guan)(guan)(guan)(guan)(guan)件。通常采(cai)用(yong)(yong)的(de)(de)(de)(de)(de)成(cheng)(cheng)(cheng)(cheng)(cheng)形(xing)工艺为缩(suo)径(jing)(jing)(jing)(jing)(jing)压(ya)制(zhi)、扩(kuo)(kuo)径(jing)(jing)(jing)(jing)(jing)压(ya)制(zhi)或缩(suo)径(jing)(jing)(jing)(jing)(jing)加扩(kuo)(kuo)径(jing)(jing)(jing)(jing)(jing)压(ya)制(zhi)，对某些规格的(de)(de)(de)(de)(de)异(yi)径(jing)(jing)(jing)(jing)(jing)管(guan)(guan)(guan)(guan)(guan)也可(ke)采(cai)用(yong)(yong)冲(chong)压(ya)成(cheng)(cheng)(cheng)(cheng)(cheng)形(xing)。a.缩(suo)径(jing)(jing)(jing)(jing)(jing)/扩(kuo)(kuo)径(jing)(jing)(jing)(jing)(jing)成(cheng)(cheng)(cheng)(cheng)(cheng)形(xing)电(dian)(dian)(dian)标(biao)大(da)(da)小(xiao)(xiao)头的(de)(de)(de)(de)(de)缩(suo)径(jing)(jing)(jing)(jing)(jing)成(cheng)(cheng)(cheng)(cheng)(cheng)形(xing)工艺是将与电(dian)(dian)(dian)标(biao)大(da)(da)小(xiao)(xiao)头大(da)(da)端直径(jing)(jing)(jing)(jing)(jing)相等的(de)(de)(de)(de)(de)管(guan)(guan)(guan)(guan)(guan)坯放入(ru)成(cheng)(cheng)(cheng)(cheng)(cheng)形(xing)模(mo)中(zhong)，通过沿管(guan)(guan)(guan)(guan)(guan)坯轴向(xiang)方向(xiang)的(de)(de)(de)(de)(de)压(ya)制(zhi)，使(shi)(shi)金(jin)属沿模(mo)腔运动(dong)并收缩(suo)成(cheng)(cheng)(cheng)(cheng)(cheng)形(xing)。根据(ju)异(yi)径(jing)(jing)(jing)(jing)(jing)管(guan)(guan)(guan)(guan)(guan)变(bian)(bian)径(jing)(jing)(jing)(jing)(jing)的(de)(de)(de)(de)(de)大(da)(da)小(xiao)(xiao)，分为一(yi)次(ci)压(ya)制(zhi)成(cheng)(cheng)(cheng)(cheng)(cheng)形(xing)或多次(ci)压(ya)制(zhi)成(cheng)(cheng)(cheng)(cheng)(cheng)形(xing)。b.冲(chong)压(ya)成(cheng)(cheng)(cheng)(cheng)(cheng)形(xing)除使(shi)(shi)用(yong)(yong)钢管(guan)(guan)(guan)(guan)(guan)为原(yuan)料(liao)(liao)生产(chan)电(dian)(dian)(dian)标(biao)大(da)(da)小(xiao)(xiao)头外，对部(bu)(bu)(bu)(bu)分规格的(de)(de)(de)(de)(de)电(dian)(dian)(dian)标(biao)大(da)(da)小(xiao)(xiao)头还可(ke)用(yong)(yong)钢板采(cai)用(yong)(yong)冲(chong)压(ya)成(cheng)(cheng)(cheng)(cheng)(cheng)形(xing)工艺进行生产(chan)。拉伸所使(shi)(shi)用(yong)(yong)的(de)(de)(de)(de)(de)冲(chong)模(mo)形(xing)状(zhuang)参照电(dian)(dian)(dian)标(biao)大(da)(da)小(xiao)(xiao)头内表面尺寸设计，用(yong)(yong)冲(chong)模(mo)将下料(liao)(liao)后的(de)(de)(de)(de)(de)钢板冲(chong)压(ya)拉伸成(cheng)(cheng)(cheng)(cheng)(cheng)形(xing)。

这些器材(cai)设(she)(she)备(bei)的(de)局部(bu)，管(guan)(guan)(guan)件(jian)(jian)，也制(zhi)成(cheng)相对(dui)应的(de)法兰(lan)形(xing)状(zhuang)，也称(cheng)为(wei)法兰(lan)连接。设(she)(she)备(bei)法兰(lan)凡是在(zai)(zai)两(liang)个平面(mian)在(zai)(zai)周边使用(yong)(yong)螺栓连接同时封闭的(de)连接零(ling)件(jian)(jian)，一般(ban)都(dou)称(cheng)为(wei)“法兰(lan)”，如通风管(guan)(guan)(guan)道的(de)连接，这一类(lei)零(ling)件(jian)(jian)可以(yi)称(cheng)为(wei)“法兰(lan)类(lei)零(ling)件(jian)(jian)”。PP带颈法兰(lan)【PP法兰(lan)产(chan)(chan)品(pin)介绍】PP、FRPP管(guan)(guan)(guan)件(jian)(jian)依据HG20593-92标准(zhun)生(sheng)(sheng)产(chan)(chan)。管(guan)(guan)(guan)件(jian)(jian)产(chan)(chan)品(pin)经压(ya)(ya)塑、焊(han)制(zhi)成(cheng)型，表面(mian)光滑，色泽均匀、结构(gou)合(he)理。管(guan)(guan)(guan)件(jian)(jian)主要(yao)品(pin)种有：法兰(lan)、接头、弯头、三通、异径管(guan)(guan)(guan)、焊(han)条等。品(pin)种规(gui)(gui)格齐全，与管(guan)(guan)(guan)材(cai)同种原料生(sheng)(sheng)产(chan)(chan)管(guan)(guan)(guan)件(jian)(jian)，工(gong)作压(ya)(ya)力(li)满(man)足管(guan)(guan)(guan)网(wang)压(ya)(ya)力(li)要(yao)求。聚(ju)丙(bing)烯(xi)PP管(guan)(guan)(guan)材(cai)标准(zhun).执行(xing)QB1929-93。.选共(gong)聚(ju)级PP管(guan)(guan)(guan)材(cai)专门原料生(sheng)(sheng)产(chan)(chan)，一般(ban)用(yong)(yong)途的(de)压(ya)(ya)力(li)输水，以(yi)及(ji)饮用(yong)(yong)水的(de)输送。.饮用(yong)(yong)水管(guan)(guan)(guan)卫生(sheng)(sheng)性能符合(he)GB/T17219规(gui)(gui)定。我厂(chang)生(sheng)(sheng)产(chan)(chan)的(de)聚(ju)乙(yi)烯(xi)（HDPE），增强聚(ju)丙(bing)烯(xi)（FRPP），超(chao)高(gao)分子(zi)量(liang)聚(ju)乙(yi)烯(xi)（UHMW-PE）管(guan)(guan)(guan)件(jian)(jian)，高(gao)密度聚(ju)乙(yi)烯(xi)（HDPE）管(guan)(guan)(guan)、均居(ju)聚(ju)丙(bing)烯(xi)（PPH）管(guan)(guan)(guan)、聚(ju)偏二氟(fu)乙(yi)烯(xi)（PVDF）管(guan)(guan)(guan)，。公(gong)(gong)司拥有国(guo)(guo)产(chan)(chan)流水线设(she)(she)备(bei)、引进(jin)德国(guo)(guo)流水线，生(sheng)(sheng)产(chan)(chan)口径为(wei)Φ15-900mm，并成(cheng)立工(gong)程塑料安装部(bu)，以(yi)确保售(shou)后服务(wu)和质量(liang)。其设(she)(she)计新颖，工(gong)艺(yi)先进(jin)，结构(gou)合(he)理，采取一次(ci)性成(cheng)型，产(chan)(chan)品(pin)具有强度高(gao)，气密性好，耐腐蚀(shi)使用(yong)(yong)寿命厂(chang)，安装维修(xiu)方便(bian)特点。碳素(su)钢大小头设(she)(she)备(bei)，就(jiu)选温(wen)州伟(wei)诚(cheng)管(guan)(guan)(guan)件(jian)(jian)有限(xian)公(gong)(gong)司，让您满(man)意，欢迎您的(de)来电哦！

电力(li)(li)部标(biao)(biao)准(zhun)(zhun)压(ya)(ya)力(li)(li)容器配套(tao)的(de)(de)(de)(de)(de)法(fa)(fa)兰、管(guan)板(ban)相应(ying)标(biao)(biao)准(zhun)(zhun)：J执(zhi)行标(biao)(biao)准(zhun)(zhun)，机械(xie)部标(biao)(biao)准(zhun)(zhun)，石化部标(biao)(biao)准(zhun)(zhun)，船(chuan)用(yong)标(biao)(biao)准(zhun)(zhun)、化工部标(biao)(biao)准(zhun)(zhun)等等。出口锻(duan)钢法(fa)(fa)兰材质符(fu)合美国的(de)(de)(de)(de)(de)ASTMA105标(biao)(biao)准(zhun)(zhun)。无缝大小(xiao)(xiao)头(tou)的(de)(de)(de)(de)(de)制作(zuo)：大小(xiao)(xiao)头(tou)（异径(jing)管(guan)）是(shi)用(yong)于管(guan)道(dao)变(bian)(bian)径(jing)处的(de)(de)(de)(de)(de)一(yi)种管(guan)件(jian)。通常(chang)采用(yong)的(de)(de)(de)(de)(de)成(cheng)(cheng)形工艺为(wei)(wei)缩径(jing)压(ya)(ya)制、扩径(jing)压(ya)(ya)制或缩径(jing)加扩径(jing)压(ya)(ya)制，对某些规格的(de)(de)(de)(de)(de)异径(jing)管(guan)也可(ke)采用(yong)冲压(ya)(ya)成(cheng)(cheng)形。缩径(jing)/扩径(jing)成(cheng)(cheng)形大小(xiao)(xiao)头(tou)的(de)(de)(de)(de)(de)缩径(jing)成(cheng)(cheng)形工艺是(shi)将与大小(xiao)(xiao)头(tou)大端直径(jing)相等的(de)(de)(de)(de)(de)管(guan)坯放入成(cheng)(cheng)形模(mo)(mo)中，通过沿管(guan)坯轴向(xiang)方向(xiang)的(de)(de)(de)(de)(de)压(ya)(ya)制，使金属沿模(mo)(mo)腔(qiang)运(yun)动并(bing)收缩成(cheng)(cheng)形。不(bu)锈钢厚壁大小(xiao)(xiao)头(tou)生产(chan)厂家,生产(chan)厂家如(ru)何(he)正确制作(zuo)大小(xiao)(xiao)头(tou)：如(ru)把管(guan)径(jing)为(wei)(wei)426MM的(de)(de)(de)(de)(de)大小(xiao)(xiao)头(tou)变(bian)(bian)为(wei)(wei)管(guan)径(jing)377MM如(ru)何(he)制作(zuo)可(ke)以(yi)用(yong)铸造法(fa)(fa)，但在没(mei)压(ya)(ya)力(li)(li)铸造的(de)(de)(de)(de)(de)条件(jian)下不(bu)。管(guan)子(zi)压(ya)(ya)力(li)(li)高的(de)(de)(de)(de)(de)时(shi)候性(xing)(xing)能(neng)不(bu)大好(hao)(hao)。用(yong)钣金法(fa)(fa)制造锥形连接(jie)段，厚度按426MM的(de)(de)(de)(de)(de)壁厚取，小(xiao)(xiao)端车到377mm的(de)(de)(de)(de)(de)壁厚。这(zhei)个方法(fa)(fa)被宽泛使用(yong)了。用(yong)法(fa)(fa)可(ke)以(yi)将426MM管(guan)子(zi)以(yi)曲线渐变(bian)(bian)法(fa)(fa)缩口到377MM，这(zhei)个要做个坚固的(de)(de)(de)(de)(de)内模(mo)(mo)。机械(xie)性(xing)(xing)能(neng)和(he)水力(li)(li)性(xing)(xing)能(neng)都非常(chang)好(hao)(hao)。温(wen)和(he)一(yi)点(dian)的(de)(de)(de)(de)(de)方法(fa)(fa)是(shi)用(yong)滚(gun)压(ya)(ya)法(fa)(fa)缩口，在工艺上没(mei)什么(me)太难的(de)(de)(de)(de)(de)。但厚度比较(jiao)大的(de)(de)(de)(de)(de)管(guan)子(zi)操作(zuo)比较(jiao)吃力(li)(li)。温(wen)州伟诚管(guan)件(jian)有(you)限公司为(wei)(wei)您提供(gong)碳(tan)素钢大小(xiao)(xiao)头(tou)设备，欢迎您的(de)(de)(de)(de)(de)来电哦！浙江SF2507大小(xiao)(xiao)头(tou)服务(wu)商

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4、质量与(yu)用(yong)(yong)途：大(da)(da)小(xiao)头(tou)内(nei)外(wai)用(yong)(yong)高(gao)级抛光(guang)设备处理，达到表(biao)(biao)面精(jing)密度要求；此产(chan)(chan)品适用(yong)(yong)于乳品、食(shi)品、啤酒(jiu)、饮料、制(zhi)药(yao)、化妆品等工(gong)业(ye)领域；5、对外(wai)加工(gong)：可以按用(yong)(yong)户(hu)要求来图、来样加工(gong)非标产(chan)(chan)品；6、连接方式：卡(ka)箍(快装)式、焊接式、螺纹(wen)(活接)式。注(zhu)意大(da)(da)小(xiao)头(tou)也适合于环保除尘行业(ye)中的(de)管(guan)道变径，一(yi)般都是(shi)钢(gang)板卷(juan)制(zhi)切(qie)割焊接而成，管(guan)径大(da)(da)小(xiao)不(bu)一(yi)，材料一(yi)般都是(shi)热轧卷(juan)板，应用(yong)(yong)的(de)非常好(hao)，可以节约(yue)成本。同心大(da)(da)小(xiao)头(tou)分布(bu)特征编辑(1)内(nei)压(ya)作用(yong)(yong)下同心异(yi)径管(guan)大(da)(da)小(xiao)端(duan)(duan)的(de)面积压(ya)力(li)差(cha)产(chan)(chan)生的(de)弯(wan)矩引起大(da)(da)端(duan)(duan)相对张(zhang)开、小(xiao)端(duan)(duan)相对收(shou)缩的(de)现象；(2)内(nei)压(ya)作用(yong)(yong)下偏(pian)心异(yi)径管(guan)偏(pian)心侧大(da)(da)端(duan)(duan)内(nei)表(biao)(biao)面及偏(pian)心侧中部外(wai)表(biao)(biao)面的(de)环向应力(li)非常大(da)(da)。同心大(da)(da)小(xiao)头(tou)分类(lei)编辑1.以材质划分：碳(tan)钢(gang):ASTM/ASMEA234WPB、WPC合金(jin)(jin):ASTM/ASMEA234WP1-WP12-WP11-WP22-WP5-WP91-WP911、15Mo315CrMoV、35CrMoV不(bu)锈(xiu)钢(gang):ASTM/ASMEA403WP304-304L-304H-304LN-304NASTM/ASMEA403WP316-316L-316H-316LN-316N-316TiASTM/ASMEA403WP321-321HASTM/ASMEA403WP347-347H低温钢(gang):ASTM/ASMEA402WPL3-WPL6高(gao)性(xing)能(neng)钢(gang):ASTM/ASMEA860WPHY42-46-52-60-65-70铸钢(gang)，合金(jin)(jin)钢(gang)，不(bu)锈(xiu)钢(gang)，铜，铝合金(jin)(jin)，塑料，氩(ya)硌沥，PVC，PPR、RFPP(增强(qiang)聚丙烯(xi))等。四(si)川316L大(da)(da)小(xiao)头(tou)

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