Imikhiqizo yensimbi engagqwali isetshenziswa kabanzi ezimbonini eziningi kanye nezicelo zayo ngenxa yokusebenza kwayo okuhle kakhulu kanye nezakhiwo zayo. Namuhla, sizoxoxa ngepayipi elingenamthungo lensimbi engagqwali kanye nepayipi lensimbi engagqwali le-ERW, kanye nomehluko phakathi kwemikhiqizo emibili.
Kukhona umehluko phakathi kwepayipi lensimbi engagqwali le-ERW kanye nepayipi elingenamthungo lensimbi engagqwali. Ipayipi le-ERW lifushaniswa nelithi Ukushisela Ukumelana Nogesi. Lisetshenziselwa ukuthutha uketshezi olufana namafutha, amagesi, njll., kungakhathaliseki ukuthi kucindezelwe kangakanani, futhi lidlala indima ebalulekile emapayipini emhlabeni jikelele. Ngesikhathi esifanayo, liyipayipi lensimbi elingenamthungo. Amapayipi ensimbi ayisikwele nangunxande angenazo izihlanganisi kanye namaphrofayili angenalutho asetshenziselwa ukuthutha uketshezi ngenxa yamandla awo aphezulu okugoba nokugoba, kanye nokukhiqiza izingxenye zesakhiwo nezemishini. Ngokuvamile, amapayipi e-ERW kanye namapayipi ensimbi angenamthungo asetshenziselwa izinhloso ezahlukahlukene.
Amapayipi ensimbi engagqwali angenamthungo enziwa ngama-billet ayindilinga, kuyilapho amapayipi ensimbi engagqwali e-ERW enziwa ngama-hot rolled coils. Nakuba izinto ezimbili zokusetshenziswa zihlukile ngokuphelele, kufanele kuqashelwe ukuthi ikhwalithi yomkhiqizo wokugcina - amapayipi incike ngokuphelele kulezi zici ezimbili - ukulawulwa kwekhwalithi ngesikhathi sokukhiqiza kanye nesimo sokuqala kanye nekhwalithi yezinto zokusetshenziswa. Womabili amapayipi enziwe ngensimbi engagqwali yezinhlobo ezahlukene, kodwa evame kakhulu ipayipi elenziwe ngensimbi engagqwali 304.
I-billet eyindilinga iyashiswa bese icindezelwa endukwini enezimbobo kuze kube yilapho ithatha isimo esingenalutho. Ngemva kwalokho, ubude bayo kanye nobukhulu bayo kulawulwa izindlela zokukhipha. Endabeni yokukhiqizwa kwamapayipi e-ERW, inqubo yokukhiqiza ihluke ngokuphelele. Umqulu ugobile ohlangothini lwe-axial, kanti imiphetho ehlanganayo ishintshwa ubude bayo bonke ngokushisela kokumelana.
Amashubhu ensimbi engagqwali angenamthungo ahlanganiswe ngokuphelele emgqeni wokuhlanganisa futhi atholakala nge-OD afinyelela kumasentimitha angu-26. Ngakolunye uhlangothi, ngisho nezinkampani zensimbi ezithuthuke kakhulu ezinobuchwepheshe be-ERW zingafinyelela kuphela ububanzi bangaphandle obungamasentimitha angu-24.
Njengoba amapayipi angenamthungo ekhishwa, awanawo amalunga ohlangothini lwe-axial noma lwe-radial. Amapayipi e-ERW, ngakolunye uhlangothi, enziwa ngokugoba ama-coil eceleni kwe-axis yawo ephakathi ukuze ahlanganiswe ngobude bawo bonke.
Ngokuvamile, amapayipi angenamthungo asetshenziselwa ukusetshenziswa komfutho ophezulu, kuyilapho amapayipi e-ERW esetshenziselwa ukunakekela ezindaweni eziphansi neziphakathi.
Ngaphezu kwalokho, uma ubheka izici zokuphepha ezingokwemvelo zamapayipi angenamthungo, asetshenziswa kabanzi embonini kawoyela negesi, ukuhlanzwa kukawoyela kanye neminye imboni yamakhemikhali, futhi kudingeka inqubomgomo yokungavuzi ukuze kuqinisekiswe ukuphepha kwabantu kanye namabhizinisi. Ngesikhathi esifanayo, amapayipi e-ERW enziwe kahle ngaphansi kokulawulwa kwekhwalithi okuqinile angasetshenziswa futhi ezinkonzweni ezifanayo ngaphandle kwezinsizakalo ezivamile njengokuthuthwa kwamanzi, izikafula kanye nocingo.
Kuyaziwa ukuthi ukuqeda kwangaphakathi kwamapayipi e-ERW kuhlala kulawulwa izindlela zokulawula zekhwalithi enhle, ngakho-ke zihlala zingcono kunezipayipi ezingenamthungo.
Endabeni ye-ASTM A53, uhlobo S lusho ukungasebenzi kahle. Uhlobo F – isithando somlilo, kodwa ukushisela, uhlobo E – ukushisela ukumelana. Yilokho kuphela. Lena yindlela elula yokunquma ukuthi ipayipi alisebenzi kahle noma i-ERW.
Icebiso: I-ASTM A53 Grade B ithandwa kakhulu kunezinye izinhlobo. Lawa mapayipi angaba mhlophe ngaphandle kokufakwa kwesembozo, noma angagqunywa nge-galvanized noma afakwe nge-hot-dip bese ekhiqizwa kusetshenziswa inqubo yokukhiqiza ehlanganisiwe noma engenamthungo. Emkhakheni kawoyela negesi, amapayipi e-A53 asetshenziselwa izinhlelo zokusebenza zesakhiwo kanye nezingabalulekile.
Uma udinga ulwazi olwengeziwe mayelana nale phrojekthi, sicela usithinte ukuze uthole isimo samanje, ulwazi lokuxhumana nethimba lephrojekthi, njll.