Sisiza umhlaba ukhula kusukela ngo-1983

Ulwazi lwensimbi (ipayipi lensimbi elingenamthungo nepuleti)

Ipayipi lensimbi le-1.Seamless: ipayipi elingenamthungo luhlobo lwensimbi ende enengxenye engenalutho futhi engenamthungo nxazonke. Insimbi yepayipi inesigaba esingenalutho, esisetshenziswa kakhulu ukuhambisa uketshezi, njengamafutha, igesi yemvelo, igesi, amanzi nezinye izinto eziqinile. Uma kuqhathaniswa nensimbi eqinile njengensimbi eyindilinga, ipayipi elingenamthungo linamandla afanayo okugoba namandla we-torsion nesisindo esilula. Isetshenziswa kabanzi ekwakhiweni kwezingxenye zokwakhiwa nezingxenye zomshini, njengepayipi le-petroli drill pipe, shaft yokudlulisela imoto, ifreyimu yebhayisikili nensimbi yesikafula esetshenziswe ekwakhiweni. Kungathuthukisa isilinganiso sokusetshenziswa kwempahla, kube lula inqubo yokukhiqiza, gcina izinto zokwenziwa kanye nesikhathi sokucubungula ngokusebenzisa ipayipi elingenamthungo ekwakheni izingxenye zendandatho, njengokugoqa indandatho ethwele indandatho, umkhono wejack, njll. Ishubhu elingenamthungo nalo liyinto ebalulekile kuzo zonke izinhlobo ezivamile izikhali. Umgqomo nomgqomo wenziwe ngeshubhu yensimbi. Ngokwakheka kwendawo enqamulelayo, amapayipi wensimbi angahlukaniswa abe yipayipi eliyindilinga nepayipi elimise okhethekile. Ngoba indawo yombuthano inkulu kunazo zonke ngaphansi kwesimo sepherimitha elinganayo, uketshezi oluningi lungathuthwa yishubhu eliyindilinga. Ngaphezu kwalokho, lapho isigaba sendandatho sinezingcindezi zangaphakathi noma zangaphandle, amandla afana kakhulu. Ngakho-ke, amashubhu amaningi angenamthungo angamashubhu ayindilinga, ahlukaniswe ukugoqa okushisayo nokugingqika okubandayo. Izinto ezivamile: 20 #, 45 #, Q345, 20g, 20Cr, 35CrMo, 40Cr, 42CrMo, 12CrMo, 12Cr1MoVG, 15CrMoG, njll; Insimbi engagqwali chungechunge uhlobo lwensimbi oluyize oluyindilinga olude, olusetshenziswa kakhulu ku-petroleum, amakhemikhali, ezokwelapha, ukudla, imboni elula, izinsimbi zomshini namanye amapayipi ezimboni kanye nezingxenye zemishini. Ngaphezu kwalokho, lapho ukugoba namandla we-torsion kufana, isisindo silula, ngakho-ke futhi sisetshenziswa kabanzi ekukhiqizeni izingxenye zemishini nezakhiwo zobunjiniyela. Futhi isetshenziselwa ifenisha, i-kitchenware, njll., Izinto ezivamile: 201, 304, 316, 316L, 310, 310S, njll.

2. Ipuleti lensimbi: kuyinsimbi eyisicaba eyinsimbi encibilikisiwe futhi icindezelwe ngemuva kokupholisa. Iyisicaba futhi ingunxande, futhi ingagingqwa ngqo noma isikwe emgqeni wensimbi obanzi. Insimbi ipuleti ihlukaniswe ukugoqa okushisayo nokugingqika okubandayo ngokuya ngokugoqa. Ngokusho kobukhulu bepuleti lensimbi, ipuleti lensimbi elincanyana <4 mm (i-thinnest 0.2 mm), ipuleti lensimbi eliphakathi nendawo eliqinile elingu-4 ~ 60 mm, ipuleti lensimbi elijiyile elingama-60 ~ 115 mm. Ububanzi beshidi bungu-500-1500 mm; Ububanzi bepuleti obukhulu bungu-600-3000 mm. Ngokuya ngezinhlobo zensimbi, kunezinsimbi ezijwayelekile, insimbi esezingeni eliphakeme, insimbi ye-alloy, insimbi yasentwasahlobo, insimbi engagqwali, insimbi yethuluzi, insimbi engamelana nokushisa, insimbi ethwele, insimbi yesilicon nensimbi ehlanzekile yensimbi; Ngokwokusetshenziswa kobungcweti, kukhona ipuleti likawoyela, ipuleti loqweqwe lwawo, ipuleti elingenakuvikela inhlamvu, njll. Ngokusho kokumbozwa kwendawo, kuneshidi lashukumisa, i-tinplate, ipuleti yomthofu, ipuleti lensimbi eyinhlanganisela, njll. Izinto ezivamile: Q235, 16Mn (q355b), 20 #, 45 #, 65Mn, 40Cr, 42CrMo, 304, 201, 316 , njll.

3. Ipayipi elishiselwe: ipayipi lensimbi eliphothene, elaziwa nangokuthi ipayipi elishiselwe, yipayipi lensimbi elenziwe ngensimbi yensimbi noma umucu ngemuva kokugoqana nokwakheka, ngobude obuhleliwe obujwayelekile obungamamitha ayi-6. Inqubo ukukhiqizwa ashiselwe steel ipayipi ilula, ukusebenza kahle ukukhiqizwa iphezulu, izinhlobo kanye Ukucaciswa ziningi, utshalomali imishini incane, kodwa amandla jikelele liphansi ukwedlula Seamless steel pipe. Iphayiphu yensimbi eshiselwe ihlukaniswe ngamapayipi aqondile ashiselwe kanye nepayipi eligoqekayo elishisayo ngokuya ngohlobo lwe-weld. Ukuhlukaniswa ngendlela yokukhiqiza: ukuhlukaniswa kwenqubo - ipayipi eline-arc eliphikisayo, ipayipi eliphikisayo lokumelana, (imvamisa ephezulu, imvamisa ephansi) ipayipi elishiselwe igesi, ipayipi lesithando somlilo. Straight seam welding isetshenziselwa ubukhulu obuncane obushiselwe ipayipi, kuyilapho i-welding spiral isetshenziselwa ububanzi bepayipi eliphakathi elibanzi; Ngokuya ngokuma kokuphela kwepayipi lensimbi, ingahlukaniswa libe yipayipi eliphothene eliyindilinga kanye nelikhethekile (isikwele, unxande, njll.) Ipayipi eliphothene; Ngokuya ngezinto ezahlukene nokusetshenzisiwe, ingahlukaniswa ibe yipayipi lamanzi elihambisa ipayipi yensimbi eshisayo, ipayipi lensimbi eliphansi elinengcindezi elihambisa ipayipi yensimbi eshiselwe, ipayipi lebhande elihambisa ibhande lensimbi, njll. Inqubo yokukhiqiza ipayipi eqondile ilula, ukusebenza kahle kokukhiqiza, izindleko eziphansi, intuthuko esheshayo. Amandla wepayipi evikelekile evulekile ngokuvamile iphakeme kunaleyo yepayipi eliqondile elishiselwe. Ingasetshenziselwa ukukhiqiza ipayipi elikhudlwana lobubanzi obushiselwe elingenalutho elincanyana, futhi lingasetshenziselwa ukukhiqiza ipayipi elenziwe ngobubanzi obuhlukile ngobubanzi obungenalutho. Kepha uma kuqhathaniswa nobude obufanayo bepayipi le-seam eliqondile, ubude be-weld bukhuphuka ngo-30 ~ 100%, futhi isivinini sokukhiqiza siphansi. Ububanzi obukhulu noma ipayipi elijiyile elibunjiwe imvamisa lenziwa nge-billet yensimbi ngqo, kuyilapho ipayipi elincane elishiselwe kanye nepayipi elincane elibiyelwe ngodonga ludinga kuphela ukufakwa ngqo nge-strip yensimbi. Ngemuva kokupholisha okulula, umdwebo wocingo ulungile. Ukuze kuthuthukiswe ukumelana nokugqwala kwepayipi lensimbi, ipayipi lensimbi elijwayelekile (ipayipi elimnyama) lahlanganiswa. Kunezinhlobo ezimbili zepayipi lensimbi lashukumisa, i-hot-dip galvanizing ne-electro galvanizing. Ubukhulu bokuthi i-hot-dip galvanizing bukhulu, futhi izindleko ze-electro galvanizing ziphansi. Izinto ezivamile zepayipi elishiselwe yilezi: Q235A, Q235C, Q235B, 16Mn, 20Mn, Q345, L245, L290, X42, X46, X60, X80, 0Cr13, 1Cr17, 00cr19ni11, 1Cr18Ni9, 0cr18ni11nb, njll.

4. Ipayipi elihlanganisiwe: ipayipi elihlanganisiwe lizibophezele ekukhiqizweni kwezinhlobo ezahlukahlukene zamapayipi ahlanganisiwe namaphenathi ensimbi anezingqimba ezizungezile namasongo endawo ende, futhi aguqulwa ngesisekelo semininingwane efanayo namamodeli wemishini yamapayipi yendabuko ehlanganisiwe. Umsebenzi wokwandisa imingcele yemishini yokugoqa ithubhu ngo-30% kuvala isikhala i-rolling imishini yendabuko engakwazi ukukhiqiza. Ingakhiqiza amapayipi wensimbi anobubanzi obungaphezu kuka-400 nodonga olushuba luka-8-100 mm. Ipayipi elihlanganisiwe lisetshenziswa kakhulu ku-petroleum, amakhemikhali, ukudluliswa kwegesi yemvelo, ukunqwabelanisa nokunikezwa kwamanzi emadolobheni, ukufudumeza, ukuhanjiswa kwegesi kanye neminye imisebenzi. Izinto ezisemqoka yi-Q235A, Q345B, 20, 45, 35cimo, 42cimo, 16Mn, njll.


Isikhathi Iposi: Jul-03-2021