Ibhande lensimbi engu-304 lisetshenziswa kabanzi emkhakheni wensimbi engagqwali.Ikakhulukazi ekugxivizeni, i-hardware ne-electronics, i-hardware, njll., insimbi engagqwali ihlukaniswe ngensimbi engagqwali ye-austenitic, insimbi engagqwali ye-ferritic,
insimbi engagqwali ye-martensitic, i-austenitic-ferritic duplex insimbi engagqwali kanye nokunqwabelana kwensimbi engagqwali eqinisayo.Okwamanje, insimbi engagqwali ye-austenitic kuphela kanye nengxenye yokunqwabelana iqinisa insimbi engagqwali (i-austenite accumulation).
insimbi engagqwali eqinile) ayinawo uzibuthe futhi ayikwazi ukumuncwa izibuthe zensimbi;kuyilapho ezinye izinhlobo zensimbi engagqwali zikazibuthe futhi zingamuncwa amazibuthe ensimbi.304 insimbi engagqwali strip kuyinto austenitic
Uhlobo lwempahla ensimbi egqwalile.Ibhande lensimbi engagqwali elingu-304 liqukethe i-nickel engaphezu kuka-8 ne-chromium engu-18, futhi ngeke ligle emoyeni nasendaweni yemvelo.Ngokuvamile sikala ukuthi insimbi engagqwali ayikhuli
ukugqwala kuwuphawu.Incazelo yensimbi engagqwali ezintweni zensimbi engagqwali ihlukaniswe ngokuthi: insimbi engagqwali engagqwali emithonjeni eyonakalisayo njengomoya, amanzi, isitimu, njll.
Insimbi engagqwali emithonjeni yokugqwala eqinile njenge-, isixazululo sikasawoti, njll. iyinsimbi engagqwali.Insimbi engagqwali ingase ingakwazi ukumelana nokugqwala, futhi insimbi engagqwali kumele ingabi nabala.Ngoba i-chromium ne-nickel ngamaqembu abalulekile ekumelana nokugqwala kwezinto zensimbi engagqwali
Engxenyeni, okuqukethwe kwe-chromium ne-nickel kuhlukile.Ngezinto zensimbi engagqwali, zingahlukaniswa zibe 201 202 303 309 304 314 316 317 310s, njll. Kulandelwa inani le-metallic chromium ne-nickel components.
304 Ipuleti/ishidi Lensimbi Engagqwali
ngokuvamile isetshenziselwa ukukhiqiza imikhiqizo yensimbi noma yemishini.Ngokuvamile, ibhande lensimbi engagqwali elingu-304 linezakhiwo ezingcono ze-hydraulic.Ngaphezu kwalokho, inokumelana nokugqwala okuphakeme nokumelana nokucindezela, ngakho iphinde isetshenziswe kabanzi.Ubunzima bomucu wensimbi engagqwali ongu-304 bunomthelela osobala ekubukekeni kwawo nasekumelaneni nokugqwala.Kungashiwo ukuthi iyisiqondiso esibalulekile sokukala ikhwalithi yokubukeka yomugqa wensimbi engagqwali.Iyahlukahluka ngokubukeka komugqa wensimbi engagqwali.Ngokuvamile, ubulukhuni buyadingeka.Ukuhlola kuzokwazi ukuthi ukubukeka okuvame ukusetshenziswa kusuka kokuphansi kuye phezulu, 8K–BA-2B.Ubulukhuni be-2B bucishe bube ngu-0.1, kanti amanye mancane.Ukuqondiswa kanye nokuma kwesilinganiso kuzoshintshwa.
Ibhande lensimbi engagqwali elingu-304 linesisindo esilula namandla aphezulu: ingxenye yepayipi lenhlanzeko ingu-1.65 ~ 2.0.Mayelana nesisindo ngobude beyunithi ngayinye yobubanzi bepayipi obufanayo, i-1/3 kuphela yensimbi ye-carbon, i-1/5 yepayipi yensimbi esakazwayo yepayipi le-FRP, kanye ne-1/10 yepayipi likakhonkolo elicindezelwe ngaphambili, elinciphisa izindleko zokuliphakamisa ngesikhathi. ukwakhiwa futhi ithuthukise imishini Speed njll.
Ibhande lensimbi engagqwali le-304 linokumelana okuhle kwamanzi nokumelana nokugqwala: ipayipi lenhlanzeko linokumelana nokugqwala okuhle kakhulu, lehlisa izindleko zokugqwala, futhi lelula impilo yesevisi;ngesikhathi esifanayo, ngenxa yokuthi ayigqwali, izinga lamanzi alikho ngaphansi kokungcola kwesibili.Ingase futhi isetshenziselwe ukuthutha indle, udaka, amanzi olwandle kanye neminye imithombo.
I-304 insimbi engagqwali ukumelana nokucindezela kwebhande: ngokusho kwengcindezi edingekayo yinqubo, hlela futhi wenze amapayipi nokufakwa, futhi wenze ukuhlolwa kwe-hydraulic izikhathi ezingu-1.5 ingcindezi edingekayo yinqubo.
Isixhumi esibonakalayo sebhande lensimbi engagqwali le-304 linokubekwa uphawu okuhle, akukho ukuvuza, akukho ukuhlukana, okwandisa ukuphepha nokuthembeka kokunikezwa kwamanzi.
Ibhande lensimbi engagqwali elingu-304 liyibhande lensimbi engagqwali elisebenza ngezindlela eziningi.Ibhande lensimbi engagqwali le-304 linemisebenzi emihle kakhulu ejwayelekile (ukumelana nokugqwala nokubumbeka), futhi lisetshenziswa kabanzi emishinini yokukhiqiza nezingxenye zomshini.Ngokuvamile isetshenziswa emazingeni okushisa angaphansi kuka-650°C.I-304 insimbi engagqwali inokumelana nokugqwala okuhle kakhulu nokumelana okuhle nokugqwala kwe-intergranular.Kuma-acids e-oxidizing, atholakala ekuhlolweni: umugqa wensimbi engagqwali ongu-304 unokumelana nokugqwala okuqinile ku-nitric acid enezinga lokushisa elingu-≤65%.Kufinyelelwa esiphethweni sokuthi umugqa wensimbi engagqwali ongu-304 unokumelana nokugqwala okuhle kakhulu ezixazululweni ze-alkali kanye nama-asidi amaningi ezinto eziphilayo kanye ne-inorganic.
Enqubweni yokugingqika okubandayo kwensimbi engagqwali egoqelwe ebandayo, zonke izici ezithinta ingcindezi eginqikayo, igebe langempela le-roll, ukushuba nokushuba kwefilimu kawoyela yezinto ezigoqayo kuzoba nomthelela kumehluko wangempela wokujiya komugqa, ikakhulukazi izici ezilandelayo:
Umthelela wokushintsha kwezinga lokushisa.Umthelela wokushintsha kwezinga lokushisa lezingxenye ezisele zensimbi kugqinsi lwemicu yensimbi engagqwali yezinto eziginqikayo empeleni umthelela womehluko wokushisa kugqinsi.Umehluko wokushisa ubangelwa ikakhulukazi ithonya lokumelana ne-metal deformation kanye nesici sokumelana.
Umphumela wokushuba uyashintsha.I-tension iwukushintsha ukumelana nokuguqulwa kwensimbi kwemishini eginqikayo ngokuthinta ingcindezi, bese idala ukuthi ukushuba kushintshe.Izinguquko ekucindezelekeni kwezingxenye ezisele ze-metallurgical azithinti nje kuphela ukushuba kwekhanda le-strip nomsila, kodwa futhi kuthinta ukushuba kwezinye izingxenye.Uma i-tension inkulu kakhulu, izothinta ukushuba futhi ishintshe nobubanzi.Ngakho-ke, enqubweni eshisayo ye-tandem rolling, ukugoqa okuzinzile nokuphansi kwe-micro loop ngokuvamile kusetshenziswa, futhi ukugoqa okubandayo kwe-tandem kugoqwa endaweni ebandayo, futhi okokusebenza kuyacutshungulwa.Ukuqina kwenza ukumelana ne-deformation kukhulu.
Kuphela ngokulungisa igebe le-roll yemishini yokugoqa ukuze ushintshe amandla okugoqa, kunzima ukuthola izinga lokunciphisa elidingekayo, ngakho-ke kuyadingeka ukusebenzisa i-inter-stand tension enkulu ukuze uginqike.Ukucindezeleka okukhulu kuyisici esibaluleke kakhulu sokukhiqiza okubandayo okugoqayo.Imiphumela ye-metallurgical spare tension ihlanganisa: ukunciphisa amandla aginqikayo kanye nokunciphisa ukusetshenziswa kwamandla okuguquguqukayo;ukugwema ukuchezuka kwe-strip;ukulawula umumo we-strip nokuqina kwe-strip.Ukuhlaziywa Kwezimbangela Zokujiya Umehluko Womucu Wensimbi Engagqwali Ogoqiwe Obandayo
304 ipuleti lensimbi engagqwali ugqoko elingunxande/ipuleti lezoso/ipuleti lesidlo sakusihlwa esithengiswayo/ipuleti lerayisi elishisayo/ipuleti lezinhlanzi eyosiwe lasendlini
Umthelela wezinguquko zejubane.Ijubane ikakhulukazi lenziwa ngokushintsha ingcindezi eginqikayo kanye nokwehliswa yisici sokumelana, ukumelana nokuguqulwa, kanye nokuqina kwefilimu kawoyela.Izinga lokuqina kwesondo elibushelelezi lihlukile, futhi umphumela wokugaya ku-substrate yomkhiqizo uhlukile.Ngokwalokhu, ukupholisha ngomshini kungenziwa.Ihlukaniswe yaba ukujikijela okungalungile, ukuphonsa okuphakathi kanye nokuphonsa okuhle..
Umthelela we-roll gap uyashintsha.Lapho umugqa wensimbi engagqwali ugoqwa, igebe le-roll yemishini yokugoqa lizoshintshwa ngenxa yokwanda okushisayo kwezingxenye zokugaya, ukuguga kwegebe le-roll kanye ne-offset yomqulu, okuthinta ngokuqondile ushintsho lwangempela lokuqina.Ukushintsha ngezikhathi ezithile kwegebe le-roll okubangelwa ukungaqondani kahle kwama-spare parts rolls nama-bearings kuzodala ukushoda kwezikhathi ezithile kogqinsi oluphakeme esimweni sokuginqika ngesivinini esikhulu.
Ibhande lensimbi engagqwali elingu-304 lilungele ukucubungula ukudla, ukugcinwa nokuhamba.I-304 insimbi engagqwali inokusebenziseka okuhle kakhulu kanye nokushisela.Izishintshisi zokushisa zepuleti, izivunguvungu, imikhiqizo yasendlini (isigaba 1, 2 i-tableware, amakhabethe, amapayipi asendlini, izifudumezi zamanzi, ama-boilers, obhavu), izingxenye zezimoto (ama-windshield wiper, ama-muffler, imikhiqizo ebunjiwe), izinto zikagesi zezokwelapha, izinto zokwakha, amakhemikhali, imboni yokudla. , Ezolimo, izingxenye zemikhumbi, njll. Ibhande lensimbi engagqwali elingu-304 ibhande lensimbi engenasici elaqashelwa kuzwelonke.
Kunezinhlobo eziningi zemichilo yensimbi engenasici egoqelwe ngamakhaza, ezivamile ziyi-201, 304, 430, njll. Lezi zinhlobo ezahlukene zamapheshana ensimbi engenasici abandayo anezindawo ezahlukene.Uma ziwugqinsi, kungase kuphakame izinkinga.Ngakho-ke, indlela yokuhlukanisa i-strip yensimbi engenasici egoqwe ebandayo isiyinkinga ebalulekile.
Kufanele siqale siqonde ukuthi imichilo yensimbi engagqwali egoqelwe ebandayo ingahlukaniswa ngezinhlobo ze-austenitic kanye ne-martensitic ngokusho kwesakhiwo sabo.Imichilo yensimbi engagqwali egoqwe ebandayo evame ukusetshenziswa njengamashidi amashubhu okuhlobisa ngokuvamile ayizinto ze-austenitic 304, ngokuvamile ezingezona uzibuthe noma zibuthe obuthaka, kodwa izakhiwo zikazibuthe zingase zivele ngenxa yokwakheka kwamakhemikhali omshini wokubhola noma izimo ezihlukene zokucubungula.Lokhu akukwazi ukubhekwa njengokuwumgunyathi noma njengokusezingeni eliphansi.
Okwesibili, i-austenite ayiyona i-magnetic noma inozibuthe ebuthakathaka, kuyilapho i-martensite noma i-ferrite inguzibuthe.Ngenxa yokuhlukaniswa kwezingxenye noma ukwelashwa okushisa okungalungile ngesikhathi sokuqeqeshwa, inani elincane le-martensite noma i-ferrite ku-austenitic 304 insimbi engagqwali izokwakhiwa.inhlangano.Ngale ndlela, insimbi engagqwali engu-304 izoba nozibuthe omuhle.
Abanye, insimbi engagqwali engu-304 izoshintsha ibe yi-martensite ngokusebenza okubandayo.Uma izinga lokushisa elibandayo lisebenza kakhulu, i-martensite izoguqulwa futhi ibe nkulu indawo kazibuthe yensimbi.Kubonakala sengathi iqoqo lamabhande ensimbi likhiqiza amashubhu angu-Φ76 ngaphandle kokungeniswa kwamagnetic okusobala, futhi likhiqiza amashubhu angu-Φ9.5.I-induction kazibuthe ibonakala kakhulu ngenxa yokuguquguquka okukhulu kokugoba.Ishubhu elingunxande eliyisikwele elikhiqizwe line-deformation enkulu kuneshubhu eliyindilinga, ikakhulukazi emakhoneni, ukuguqulwa kubi kakhulu futhi i-magnetism isobala kakhulu.
Uma sicabanga ukuthi ukuze kuqedwe ngokuphelele izakhiwo zamagnetic zensimbi engu-304 ezakhiwe ngezizathu ezibalwe ngenhla, isakhiwo se-austenite singaqiniswa futhi siqiniswe ngokwelashwa kwesisombululo esiphezulu sokushisa, bese amandla kazibuthe angaqedwa.
Ikakhulukazi, izici kazibuthe zomugqa wensimbi engagqwali obandayo ongu-304 owenziwe ngenxa yalezi zizathu ezingenhla azikho ezingeni elifanayo nezakhiwo zikazibuthe zeminye imichilo yensimbi engenasici egoqelwe ebandayo, efana ne-430 ne-carbon steel.Okusho ukuthi, izakhiwo kazibuthe ze-304 steel bezilokhu zikhanya.Unozibuthe obuthakathaka.
Isikhathi sokuthumela: Aug-10-2020