Amapayipi ensimbi anobubanzi obukhulu abizwa nangokuthi amapayipi ensimbi anobubanzi obukhulu, abhekisela emapayipini ensimbi ashiselwe ane-hot-dip plateing noma izendlalelo ezinama-electro-galvanized ebusweni bamapayipi ensimbi anobubanzi obukhulu. I-galvanizing ingakhuphula ukumelana nokugqwala kwamapayipi ensimbi futhi yandise impilo yabo yesevisi. Amapayipi anamathangi asetshenziswa kakhulu. Ngaphezu kokusetshenziswa njengamapayipi oketshezi oluvamile olunomfutho ophansi njengamanzi, igesi, nowoyela, asetshenziswa futhi njengamapayipi emithombo kawoyela namapayipi kawoyela embonini kawoyela, ikakhulukazi izizinda zikawoyela ezingasogwini, nanjengezishisi zikawoyela nokujiya. emishinini yokupheka ngamakhemikhali. Amapayipi ama-coolers, ama-coal distillate okugeza uwoyela, amapayipi ezinqwaba zamapayipi e-trestle, amafreyimu okusekela emigudu yezimayini, njll.

Indlela yokwenza ipayipi lensimbi enobubanzi obukhulu:

1. Indlela yokwandisa ububanzi bokucindezela okushisayo

Imishini yokwandisa ububanzi ilula, inezindleko eziphansi, kulula ukuyinakekela, iyonga, futhi ihlala isikhathi eside, futhi imininingwane yomkhiqizo ingashintshwa kalula. Uma udinga ukulungisa amapayipi ensimbi anobubanzi obukhulu neminye imikhiqizo efanayo, udinga kuphela ukwengeza izesekeli ezithile. Ilungele ukukhiqiza amapayipi ensimbi anobubanzi obuncane obuncane naphakathi nendawo, futhi ingakhiqiza namapayipi anezindonga eziwugqinsi angeqi umthamo wemishini.

2. Indlela ye-extrusion eshisayo

Okungenalutho kudinga ukucutshungulwa kusengaphambili ngomshini ngaphambi kokukhipha. Lapho ukhipha ukufakwa kwamapayipi ngobubanzi obungaphansi kuka-100mm, ukutshalwa kwezimali kwemishini kuncane, imfucumfucu yezinto ezibonakalayo incane, futhi ubuchwepheshe buvuthwe ngokuqhathaniswa. Kodwa-ke, uma ububanzi bepayipi bukhula, indlela yokushisa eshisayo idinga i-tonnage enkulu kanye nemishini yamandla aphezulu, futhi uhlelo lokulawula oluhambisanayo kufanele luthuthukiswe.

3. Ukubhoboza okushisayo nendlela yokugingqa

Ukubhoboza okushisayo kusekelwe ikakhulukazi esandisweni sokugingqa i-longitudinal kanye nokunwetshwa kwe-cross-rolling. Ukugingqa i-longitudinal kanye nokunwetshwa kwesandiso ikakhulukazi kuhlanganisa ukugoqeka kweshubhu okuqhubekayo okune-mandrel ehambayo elinganiselwe, ukugoqa kweshubhu okungapheli nge-mandrel ene-limited-stand mandrel, i-three-roll continuous tube rolling ene-mandrel elinganiselwe, kanye neshubhu egingqika ne-mandrel entantayo. Lezi zindlela zinokukhiqiza okuphezulu, ukusetshenziswa kwensimbi okuphansi, imikhiqizo emihle, nezinhlelo zokulawula, futhi ziyasetshenziswa kabanzi.

Njengamanje, izinqubo zokukhiqiza eziyinhloko zamapayipi ensimbi anobubanzi obukhulu ezweni lami amapayipi ensimbi anobubanzi obungububanzi obushisayo ashisayo kanye namapayipi ensimbi anobubanzi obunwetshiwe. Ukucaciswa okukhulu kakhulu kwamapayipi ensimbi angenamthungo anwetshiwe angama-325 mm-1220 mm kanti ukujiya kungu-120mm. Amapayipi ensimbi angenamthungo anwetshiwe anwetshiwe angakhiqiza amasayizi ajwayelekile angewona awezwe lonke. Ipayipi elingenamthungo yilokho esivame ukukubiza ngokuthi ukunwetshwa okushisayo. Kuyinqubo yokuqeda ipayipi elimahhadlahhadla lapho amapayipi ensimbi anogqinsi oluncane kodwa ancipha ngamandla anwetshwa ngezindlela zokugingqika noma zokudweba. Ukuqina kwamapayipi ensimbi ngesikhathi esifushane angakhiqiza izinhlobo ezingajwayelekile nezikhethekile zamapayipi angenamthungo anezindleko eziphansi nokusebenza kahle kokukhiqiza okuphezulu. Lona umkhuba wamanje wokuthuthuka emkhakheni wokugingqelwa kwamapayipi.

Amapayipi ensimbi amakhulu amakhulu ayabanjwa futhi aphathwe ngokushisa ngaphambi kokuphuma embonini. Lesi simo sokulethwa sibizwa ngokuthi yi-annealed state. Injongo yokudonsa ngokuyinhloko iwukuqeda ukukhubazeka kwesakhiwo nokucindezeleka kwangaphakathi okusele kusukela kunqubo yangaphambilini nokulungisa isakhiwo nokusebenza kwenqubo elandelayo, njengensimbi yesakhiwo sengxubevange, insimbi yesakhiwo enokuqina okuqinisekisiwe, insimbi enesihloko esibandayo, nokuthwala. insimbi. Izinsimbi ezifana nensimbi yamathuluzi, insimbi ye-steam turbine blade, nensimbi evikela ukushisa yohlobo lwekhebula ngokuvamile zilethwa esimweni esishubile.

Indlela yokucubungula ipayipi lensimbi enobubanzi obukhulu:

1. Ukugingqika; indlela yokucubungula ingcindezi lapho izikhala zensimbi zepayipi ezinobubanzi obukhulu zidlula igebe phakathi kwama-roller ajikelezayo (amajamo ahlukahlukene). Ngenxa yokucindezelwa kwama-roller, i-cross-section yezinto ezibonakalayo iyancishiswa futhi ubude buyanda. Lena indlela evame ukusetshenziswa yokukhiqiza amapayipi ensimbi anobubanzi obukhulu. Indlela yokukhiqiza isetshenziswa kakhulu ukukhiqiza amaphrofayili epayipi ensimbi anobubanzi obukhulu, amapuleti, namapayipi. Ihlukaniswe yaba ukugoqa okubandayo nokugoqa okushisayo.

2. Ukuqamba; indlela yokucubungula ingcindezi esebenzisa umthelela ophindaphindayo wesando sokubumba noma ukucindezela komshini wokucindezela ukushintsha okungenalutho kusimo nosayizi esiwudingayo. Ngokujwayelekile zihlukaniswe zibe ukubumba kwamahhala kanye ne-die forging, zivame ukusetshenziselwa ukukhiqiza izinto ezineziphambano ezinkulu, amapayipi ensimbi anobubanzi obukhulu, njll.

3. Umdwebo: Kuyindlela yokucubungula edonsa insimbi egoqiwe ingenalutho (emile, ishubhu, umkhiqizo, njll.) ngembobo yokufa ibe isiphambano esincishisiwe kanye nobude obandisiwe. Iningi lazo lisetshenziselwa ukusebenza okubandayo.

4. Extrusion; kuyindlela yokucubungula lapho amapayipi ensimbi anobubanzi obukhulu abeka khona insimbi kusilinda esivaliwe se-extrusion futhi afake ingcindezi komunye umkhawulo ukuze akhiphe insimbi embobeni yokufa enqunyiwe ukuze athole imikhiqizo eqediwe yomumo nosayizi ofanayo. Isetshenziswa kakhulu ekukhiqizeni. Insimbi engeyona insimbi ipayipi elikhulu lobubanzi obukhulu.