Umehluko phakathi kokugoqa okushisayo nokugoqa okubandayo ikakhulukazi izinga lokushisa lenqubo yokugoqa. "Ukubanda" kusho izinga lokushisa elivamile, futhi "kushisa" kusho izinga lokushisa eliphezulu. Ngokombono we-metallurgy, umngcele phakathi kokuginqika okubandayo nokuginqika okushisayo kufanele uhlukaniswe ngezinga lokushisa elikhanyayo. Okusho ukuthi, ukugoqa ngezansi kwezinga lokushisa le-recrystallization kuyabanda, futhi ukugoqa ngaphezu kwezinga lokushisa lokuvuselela kabusha kuyashisa. Izinga lokushisa recrystallization yensimbi kuyinto 450-600 ℃.
Okulandelayo isifinyezo sezimpendulo zemibuzo mayelana [Umehluko phakathi kokuginqika okushisayo nokubandayo]:
Umehluko phakathi kokugoqa okubandayo nokugoqa okushisayo ikakhulukazi izinga lokushisa lenqubo yokugingqa. "Ukubanda" kusho izinga lokushisa elivamile, futhi "kushisa" kusho izinga lokushisa eliphezulu. Ngokombono we-metallurgy, umngcele phakathi kokuginqika okubandayo nokuginqika okushisayo kufanele uhlukaniswe ngezinga lokushisa elikhanyayo. Okusho ukuthi, ukugoqa ngezansi kwezinga lokushisa le-recrystallization kuyabanda, futhi ukugoqa ngaphezu kwezinga lokushisa lokuvuselela kabusha kuyashisa. Izinga lokushisa recrystallization yensimbi kuyinto 450-600 ℃
Ukugoqa okushisayo nokugoqa okubandayo kuyizinqubo zokwenza amapuleti ensimbi noma amaphrofayili, anomthelela omkhulu esakhiweni nasezindaweni zensimbi. Ukuginqika kwensimbi ikakhulukazi ukugoqa okushisayo, futhi ukugoqa okubandayo kusetshenziswa kuphela ukukhiqiza insimbi yengxenye encane nepuleti elincane. Ama-ingots noma ama-billet anzima ukuwohloka futhi acutshungulwe ezingeni lokushisa legumbi. Ngokuvamile, zishiselwa ku-1100-1250 ℃ ukuze zigoqeke. Le nqubo yokugingqa ibizwa ngokuthi ukugoqa okushisayo. Izinga lokushisa lokugcina lokuginqika okushisayo livamise ukuba ngu-800-900 ℃, bese lipholiswa ngokujwayelekile emoyeni, ngakho-ke isimo sokuginqika esishisayo silingana nokwelashwa okujwayelekile. Insimbi eningi igoqwa ngokugoqa okushisayo. Ukugoqa okubandayo kubhekisela endleleni yokugingqa yensimbi ekhiphayo kanye nokushintsha ukuma kwensimbi ngokucindezela kwamaroli ekamelweni lokushisa. Nakuba inqubo yokucubungula izophinde yenze ipuleti lensimbi lifudumale, isabizwa ngokuthi ukugoqa okubandayo.
Lo mbhalo ucacisa izimo zokulethwa kwezobuchwepheshe zamandla aphezulu kanye nesimo sezulu sikagesi esishiselwe kanye ne-arc engaphansi eshiselwe okubandayo eyakhiwe izingxenye zensimbi eziyizigodi eziyiziyingi, eziyizikwele, eziwunxande noma eziyisiyingi futhi zakha amakhaza ngaphandle kokwelashwa kokushisa okwalandela ngaphandle kokwelashwa kokushisa kolayini wokushisela. . QAPHELA 1 Izidingo zokubekezelela, ubukhulu kanye nezakhiwo zesigaba zingatholakala ku-EN 10219 2. QAPHELA 2 Ukunaka kwabasebenzisi kudonswa eqinisweni lokuthi ngenkathi amamaki abandayo akhiwe kulo mbhalo angaba nezakhiwo ezifanayo zemishini kumamaki aphelile ku-EN. 10210 3, izakhiwo zesigaba zezigaba eziyizikwele neziyizigodi ezingunxande ku-EN 10219 2 kanye ne-EN 10210 2 azilingani. QAPHELA 3 Uhlu lwamamaki ensimbi lubalulwe kulo mbhalo futhi umsebenzisi angakhetha ibanga elifanele kakhulu izimo ezihlosiwe zokusebenzisa nezimo zesevisi. Amabanga nezakhiwo zemishini, kodwa hhayi isimo sokugcina sokunikezwa kwezingxenye ezingenalutho ezibandayo ngokuvamile ziqhathaniswa nalezo eziku-EN 10025 3, EN 10025 4, EN 10025 5, EN 10025 6, EN 10149 2 kanye ne-EN 10149 3.
I-EN 10210-3-2020
Izingxenye ezingenalutho zesakhiwo sensimbi ephelile- Ingxenye 3: Izimo zokulethwa kwezobuchwepheshe zamandla aphezulu nezinsimbi ezimelana nesimo sezulu
Lo mbhalo ucacisa izimo zokulethwa kobuchwepheshe zamandla aphezulu kanye nesimo sezulu esiqedwe ukushisa esingenamthungo, esishiselwe ngogesi esishiselwe nge-arc esishiselwe izingxenye zesakhiwo esingenalutho samafomu ayindilinga, ayisikwele, angama-rectangular noma ama-elliptical. Kusebenza ezingxenyeni ezingenalutho ezakhiwe kushisa, noma ngaphandle kokwelashwa kokushisa okulandelayo, noma ukwakheka kwamakhaza okuhambisana nokwelashwa okushisayo okungaphezulu kuka-580 °C ukuze kutholwe izici ezifanayo zokuzilungisa kulezo ezitholakala kumkhiqizo oshisayo owenziwe. QAPHELA 1 Izidingo zokubekezelelana, ubukhulu kanye nezakhiwo zesigaba zicaciswe ku-EN 10210-2. QAPHELA 2 Ukunakwa kwabasebenzisi kudonswa eqinisweni lokuthi nakuba amamaki abandayo akhiwe ku-EN 10219-3 angaba nezakhiwo ezifanayo zemishini kumamaki aqedwe ukushisa kulo mbhalo izakhiwo zengxenye zezingxenye eziyizikwele neziyimbobo engunxande ku-EN 10210-2 kanye ne-EN 10219-2 azilingani. QAPHELA 3 Uhlu lwamabanga abalulekile lucaciswe kulo mbhalo futhi umsebenzisi angakhetha ibanga elifaneleka kakhulu kwizimo ezihlosiwe zokusebenzisa nezimo zesevisi. Amabanga kanye nezakhiwo zemishini zezigaba ezingenalutho eziqediwe ngokuvamile ziqhathaniswa nalezo eziku-EN 10025-4, EN 10025-5 kanye ne-EN 10025-6. QAPHELA 4 Izidingo zezingxenye zensimbi ezingenamthungo nezishiselwe ukuze zisetshenziswe ezakhiweni zasogwini zimbozwe ochungechungeni lwe-EN 10225. QAPHELA 5 Izingxenye ezingenalutho ezishiselwe ku-Spiral kulindeleke ukuthi zisetshenziswe ngokuqapha ezinhlelweni ezibandakanya ukuziphatha okuguquguqukayo (ingcindezi yokukhathala) njengoba, kuze kube manje, akukho idatha eyanele mayelana nokusebenza kwazo.
Yethula ukusetshenziswa okubanzi kweshubhu elingunxande elakheke ngokubanda
Ezakhiweni zezimboni kanye nezomphakathi zaseChina, ukhonkolo oqinisiwe ususetshenziswe iminyaka eminingi
Umjikelezo omude nokungcola okukhulu. Eminyakeni yamuva, ngempumelelo hot iphumaI-H-beamimikhiqizo ye-Ma Steel ne-Lai Steel
Ngokwesethulo semakethe, ukusetshenziswa kwesakhiwo sensimbi embonini yezokwakha kuye kwanda. Izakhiwo zokuhlola ezehlukene zensimbi, izindlu eziyimodeli kanye nezakhiwo eziyingqopha-mlando zethulwe ngokulandelana kwazo. Amazinga kanye nokucaciswa kokuklama nokwakhiwa nakho sekuqalile ukungena esigabeni sokuthuthuka kancane kancane. Imboni yesakhiwo sensimbi yaseChina yenze intuthuko enkulu eminyakeni yamuva.
Kodwa-ke, okwamanje, izakhiwo zensimbi zokwakha zaseChina zisetshenziselwa ikakhulukazi insimbi egoqwe emise okwe-H eshisayo kanye nezakhiwo zensimbi ezishiselwe. Umthamo wensimbi egoqwe eshisayo emise okwe-H e-China usufinyelele amathani ayizigidi ezi-3, futhi ukukhishwa kwensimbi eshiselwe ukukhanya okumise okwe-H kanye nezakhiwo zensimbi ezihlukahlukene nakho kungamathani ayizinkulungwane ezingamakhulu amaningana. Umphumela wamapayipi ashiselwe eChina ungaphezu kwamathani ayizigidi ezingu-7 ngonyaka, okuphuma kuwoamapayipi ayizikwele abandayo kanye namapayipi angama-rectangularkanye nezakhiwo zensimbi ezihlukahlukene ezibandayo zokwakha izakhiwo zensimbi zingaphansi kuka-5% wengqikithi yokukhishwa kwensimbi epholile. Ukusetshenziswa kwensimbi eyakhiwe ngendlela ebandayo ezakhiweni zensimbi yezakhiwo zezimboni kanye nezomphakathi e-China kusesigabeni sokuqala. Isikwele esakheke ngokubanda kanye nesakhiwo esingunxande esishiselwe ipayipi sisanda kuqala ukufaka esikhundleni sensimbi egoqelwe emise okwe-H njengekholomu yesakhiwo sensimbi. Enye insimbi eyakhiwe ngendlela ebandayo ayisetshenziswa kancane embonini yezokwakha.
ingxenye yensimbi ye-yuantai ye-crane,ingxenye engenalutho ye-yuantai,ingxenye yesikwele ye-yuantai engenalutho
Njengamanje, uMnyango Wezokwakha wakha izakhiwo zokuhlola izakhiwo zensimbi ezakhiweni zezimboni nezabantu, njenge
Izindlu ezimbili zemibukiso yezakhiwo zensimbi zoMnyango Wezokwakha zakhiwa e-Tianjin ngo-2002. Kwasetshenziswa amapayipi ensimbi kulo msebenzi.
Uhlaka lukakhonkolo lwensimbi yensimbi yohlaka lwensimbi oluqinisiwe lweshubhu eliwukhonkolo (SRC) lwesakhiwo, indawo ephelele yephrojekthi
8000m2, umzimba omkhulu unezitezi eziyishumi nanye, ikholomu eyodwa yenziwe ngepayipi eliyindilinga, kanti enye ikholomu yenziwe ngepayipi lensimbi yesikwele.
350x350mm, ukujiya kuyahlukahluka kuye phansi, lapho phansi 1~3 kukhona 16mm, 4~
I-14mm yesitezi se-6, i-12mm yesitezi sesi-7 kuye kweyesi-9, i-10mm yesitezi se-10 kuye kweye-11, bese ithululelwa epayipini lensimbi.
Ukhonkolo we-C40.
I-beam yenziwe nge-welded I-beam enemininingwane engu-350x200x10x18mm, kanye ne-floor slab.
Kuyi-slab eyinhlanganisela ecindezelwe ngaphambili ene-spiral high-strength rib reinforcement. Ngaleso sikhathi, akekho umkhiqizi eChina owakhiqiza amashubhu ayisikwele anobubanzi obukhulu kangaka, ngakho-ke kwasetshenziswa amashubhu ensimbi ayizikwele kuphrojekthi, okwakungamakholomu amane ashiselwe amapuleti e-BOX.
Iphrojekthi yezindlu zombukiso wesakhiwo sensimbi woMnyango Wezokwakha we-Tianjin Yuantai Derun Steel Pipe Manufacturing Group Co., Ltd. idonsa ugqozi olubili ekusetshenzisweni kwensimbi esakhiwe ngendlela ebandayo (ikakhulukazi ishubhu elingunxande) ezindlini zesakhiwo sensimbi:
Okokuqala, indawo yemakethe yamashubhu angama-rectangular anosayizi omkhulu abandayo sikhulu, futhi inani elizwakalayo lephansi lendawo yokuhlala yesakhiwo sensimbi likhulu.
Ngezitezi eziyi-10~18, izakhiwo ezinjalo eziphakeme ezimaphakathi neziphezulu nazo zinezidingo ezithile zokucaciswa kwamashubhu angama-rectangular akhiwe ngendlela ebandayo.
Okwesibili, amapayipi ensimbi ayizikwele anezinzuzo ezisobala ngaphezu kwamapayipi ensimbi ayindilinga ngezizathu ezintathu:
Okokuqala, amapayipi ayisikwele nayindilinga anobude obufanayo ohlangothini nobubanzi anomthamo ongcono wokuthwala nokusebenza kokuzamazama komhlaba
Kuhle. Ngokohlolo olwenziwa inyuvesi yase-Tianjin esitezini esinezikwele ezintathu kanye nohlaka lwekholomu yesikwele esiyindilinga.
Ubude obuseceleni bekholomu yepayipi buyi-150mm, kanti ububanzi bepayipi eliyindilinga buyi-150mm. Imiphumela yokuhlolwa ikhombisa ukuthi eyokuqala imelana ne-lateral force iebearing
Umthamo womthwalo kanye nomthamo wokugcina wokuthwala uphakeme ngo-80% kunewakamuva, futhi inkomba yokusebenza kokuzamazama komhlaba icishe iphindwe kabili kwakamuva;
Okwesibili, ukwakhiwa kwamapayipi wesikwele kulula kakhulu. Ikholomu yekhonkrithi yendawo yokuhlala yesakhiwo sensimbi idinga ukuqhubekela phambili
Ukuze kwakhiwe, ingxenye eyindilinga iyashintshwa ibe ingxenye yesikwele;
Okwesithathu, kunzima ukubhekana nokuxhumana phakathi kwamakholomu okhonkolo ayindilinga kanye nemishayo. Isakhiwo sensimbi esizayo eChina
Emakethe, isikwele esakhiwe ngokubanda kanye namashubhu angama-rectangular azoba nesabelo esibalulekile.
Ukwelashwa kokushisa okungaphezulu kwepayipi lensimbi kungathuthukisa kakhulu umkhawulo wokukhathala we-workpiece yomkhiqizo. Isibonelo, ubuchwepheshe bokuqala bokucutshungulwa kwe-axle yemoto eyenziwe ngensimbi iwukwelashwa okujwayelekile kokushisa, futhi impilo yayo yesevisi yengezwe izikhathi ezicishe zibe ngu-20 ngokushintsha ekwelapheni ukushisa okungaphezulu kuya ekushiseni. Ngaphezu kwalokho, ukwelashwa kokushisa okungaphezulu kunciphisa ukuzwela kwesikhala kwezingxenye. Inhloso yokwelashwa kokushisa komhlaba ukuthuthukisa kangcono izici zemikhiqizo. Isetshenziswa kabanzi emikhakheni ehlukahlukene, ehlobene eduze nezici zazo zombili.
Isikhathi sokuthumela: Dec-21-2022
