I-304 ibakala lensimbi engenasici: 0Cr18Ni9 (0Cr19Ni9) 06Cr19Ni9 S30408
Ukubunjwa kwemichiza: C: ≤0.08, Si: ≤1.0 Mn: ≤2.0, Cr: 18.0～20.0, Ni: 8.0～10.5, S: ≤0.03, P: ≤0.035 N≤0.1.
I-304L ixhathisa ngakumbi kwi-corrosion kwaye i-304L iqulethe i-carbon encinci.
I-304 isetyenziswa ngokubanzi, ngokuxhathisa okulungileyo kokuhlwa, ukumelana nobushushu, amandla aphantsi obushushu kunye neempawu zoomatshini; ukusebenza kakuhle okushushu okufana nokunyathela kunye nokugoba, kwaye akukho nto yonyango yobushushu eyenza lukhuni (non-magnetic, ubushushu benkonzo -196 ° C ~ 800 ° C).
I-304L inokumelana okugqwesileyo kwi-corrosion yomda wengqolowa emva kwe-welding okanye ukukhululeka koxinzelelo; inokugcina uxhathiso olululo lwe-corrosion ngaphandle konyango lobushushu, kwaye ubushushu benkonzo yi-196°C-800°C.

imeko esisiseko:

Ngokwendlela yokuvelisa, inokwahlulwa ibe ziindidi ezimbini: ukuqengqeleka okushushu kunye nokuqengqeleka okubandayo, kwaye kunokwahlulwa zibe ziindidi ezi-5 ngokweempawu zesakhiwo seentlobo zentsimbi: uhlobo lwe-austenitic, uhlobo lwe-austenite-ferritic, uhlobo lwe-ferritic, uhlobo lwe-martensitic, kunye nohlobo lokuqina kwemvula. Kufuneka ukuba ube nako ukumelana umhlwa ezahlukeneyo acid ezifana oxalic acid, sulfuric acid-iferric sulfate, asidi nitric, asidi nitric-hydrofluoric acid, sulfuric acid-ubhedu sulfate, phosphoric acid, acid formic, acetic acid, njl Isetyenziswa ngokubanzi kwishishini lemichiza, ukutya, amayeza, i-petroleum, njl. ukwakhiwa, izixhobo zasekhitshini, itafile, izithuthi, iindawo ezahlukeneyo zezixhobo zendlu.
Ipleyiti yensimbi engenasici inomgangatho ogudileyo, iplastiki ephezulu, ukuqina kunye namandla omatshini, kwaye iyamelana ne-corrosion ngama-acids, i-alkaline gases, izisombululo kunye nezinye imidiya. Yintsimbi ekungelula ukuyirusa, kodwa ayinamhlwa kwaphela.
Ipleyiti yensimbi engenastainless Ngokwendlela yokuvelisa, inokwahlulwa ibe ziindidi ezimbini: ukuqengqeleka okushushu kunye nokuqengqeleka okubandayo, kubandakanya ipleyiti encinci ebandayo enobunzima obuyi-0.02-4 mm kunye nepleyiti ephakathi kunye nengqindilili kunye nobukhulu be-4.5-100 mm.
Ukuze kuqinisekiswe ukuba iipropathi zoomatshini ezifana namandla emveliso, amandla okuqina, ukunyuswa kunye nobulukhuni beepleyiti ezahlukeneyo zetsimbi ezingenasici zihlangabezana neemfuno, iipleyiti zetsimbi kufuneka zenze unyango olushushu olufana ne-annealing, unyango lwesisombululo, kunye nonyango lokuguga ngaphambi kokunikezelwa. 05.10 88.57.29.38 iisimboli ezikhethekileyo
Ukuxhatshazwa kwe-corrosion yensimbi engenasici ngokuyinhloko kuxhomekeke ekubunjweni kwe-alloy (i-chromium, i-nickel, i-titanium, i-silicon, i-aluminium, njl.) kunye nesakhiwo sangaphakathi, kwaye indima ephambili yichromium. I-Chromium inozinzo oluphezulu lweekhemikhali kwaye inokwenza ifilimu yokudlula kumphezulu wentsimbi ukwahlula isinyithi kwilizwe langaphandle, ikhusele ipleyiti yentsimbi kwi-oxidation, kwaye yandise ukuxhathisa kokutya kwepleyiti yentsimbi. Emva kokuba ifilimu ye-passivation ibonakaliswe, ukuxhathisa kwe-corrosion kunciphisa.

Ubume bomgangatho weSizwe:

Amandla okuqina (Mpa) 520
Amandla esivuno (Mpa) 205-210
Elongation (%) 40%
Ubunzima HB187 HRB90 HV200
Ubuninzi be-304 yensimbi engenasici yi-7.93 g / cm3. I-Austenitic steel stainless ngokuqhelekileyo isebenzisa eli xabiso. I-304 umxholo we-chromium (%) 17.00-19.00, umxholo we-nickel (%) 8.00-10.00, i-304 ilingana ne-0Cr19Ni9 yelizwe lam (0Cr18Ni9) insimbi engenasici
I-304 insimbi engenasici yintsimbi eguquguqukayo, kwaye ukusebenza kwayo okuchasene ne-rust kunamandla kunama-200 uchungechunge lwezixhobo zetsimbi. Ukumelana nobushushu obuphezulu kukwangcono.
I-304 yensimbi engenasici inokumelana ne-corrosion egqwesileyo kunye nokumelana ngcono kwi-intergranular corrosion.
Kwi-acids oxidizing, kuqukunjelwa kwiimvavanyo ukuba i-304 insimbi engenasici ine-corrosion resistance resistance kwi-nitric acid ngaphantsi kweqondo lokushisa elibilisayo kunye noxinzelelo lwe-≤65%. Ikwanayo nokumelana ne-corrosion efanelekileyo kwizisombululo ze-alkaline kunye neninzi ye-organic and inorganic acids.

iimpawu jikelele:

304 ipleyiti yensimbi engenasici inomgangatho omhle kunye neendlela ezahlukeneyo zokusebenzisa
Ukuchasana nokugqwesa okulungileyo, ukuxhathisa okungcono kwe-corrosion kunentsimbi eqhelekileyo
Amandla aphezulu, ngoko ke amathuba okusetyenziswa kwepleyiti encinci kakhulu
Ukumelana ne-oxidation yobushushu obuphezulu kunye namandla aphezulu, ngaloo ndlela ukumelana nomlilo
Ukulungiswa kobushushu obuqhelekileyo, oko kukuthi, ukusetyenzwa kweplastiki lula
Ukugcinwa okulula kunye nokulula kuba akukho nyango lwangaphandle olufunekayo
icocekile, isiphelo esiphezulu
Ukusebenza kakuhle kwe-welding

Ukusebenza komzobo
1,Ukusila okomileyo kubrashwa
Ezona zixhaphakileyo kwimarike zilucingo olude kunye nocingo olufutshane. Emva kokucubungula indawo enjalo, i-304 iplate yensimbi engenasici ibonisa umphumo omhle wokuhlobisa, onokuhlangabezana neemfuno zezinto zokuhlobisa ngokubanzi. Ngokuqhelekileyo, i-304 series steel stainless ingenza umphumo omuhle emva kokukhuhla. Ngenxa yeendleko eziphantsi, ukusebenza okulula, ixabiso eliphantsi lokucubungula kunye nokusetyenziswa okubanzi kolu hlobo lwezixhobo zokusebenza, kuye kwaba sisixhobo esiyimfuneko kumaziko okucubungula. Ngoko ke, amaziko amaninzi omatshini anokubonelela ngocingo olude kunye nocingo olufutshane lwamacwecwe anqabileyo, apho i-304 i-akhawunti yensimbi engaphezu kwama-80%.
I-2, umzobo we-oyile yokusila
Intsapho ye-304 yensimbi engenasici ibonisa umphumo ogqibeleleyo wokuhlobisa emva kokugaya ioli, kwaye isetyenziswe ngokubanzi kwiipaneli zokuhlobisa ezifana ne-elevators kunye nezixhobo zasekhaya. I-cold-rolled 304 series steel stainless ingafikelela kwiziphumo ezihle emva kokudlula enye iqabaka. Kusekho amaziko okulungisa kwimarike anokubonelela ngeqabaka enamafutha kwintsimbi eshushu eqengqelekayo, kwaye isiphumo sayo sinokuthelekiswa nesokusila ioli epholileyo. Umzobo we-oily unokwahlulwa ube yi-filament ende kunye ne-filament emfutshane. I-Filament isetyenziselwa ukuhombisa i-elevator, kwaye kukho iindidi ezimbini zokuthungwa kwezixhobo ezincinci zasekhaya kunye nezixhobo zasekhitshini.
Umahluko kwi316
Iintsimbi ezimbini eziqhelekileyo ezisetyenziswa ngokuqhelekileyo i-stainless steels 304 kunye ne-316 (okanye ihambelana nomgangatho waseJamani / waseYurophu 1.4308, 1.4408), umahluko oyintloko ekubunjweni kweekhemikhali phakathi kwe-316 kunye ne-304 kukuba i-316 iqulethe i-Mo, kwaye iyaqaphela ngokubanzi ukuba i-316 inokumelana nokugqwala okungcono. Iyakwazi ukumelana nomhlwa kune-304 kwindawo yobushushu obuphezulu. Ke ngoko, kwiindawo ezinobushushu obuphezulu, iinjineli zihlala zikhetha iindawo ezenziwe ngezinto ezingama-316. Kodwa into ebizwa ngokuba akukho nto iyonke, kwindawo egxininisiweyo ye-sulfuric acid, ungasebenzisi i-316 kungakhathaliseki ukuba iqondo lokushisa liphezulu kangakanani! Ngaphandle koko, lo mbandela unokuba yinto enkulu. Nabani na ofunda i-mechanics uye wafunda imicu, kwaye ukhumbule ukuba ukuze kuthintelwe imicu ukuba ibanjwe kumaqondo okushisa aphezulu, i-lubricant emnyama eqinile kufuneka isetyenziswe: i-molybdenum disulfide (MoS2), apho i-2 amaphuzu athathwe kuyo Isiphelo asikho: [1] I-Mo ngokwenene iyinto echasene nobushushu obuphezulu (ngaba uyazi ukuba yintoni i-crucible esetyenziselwa ukunyibilikisa i-molybdenum? (2) Ngoko ke akukho nalunye uhlobo lwentsimbi engatyiwayo nenganyangekiyo kwaye ikwazi ukumelana nomhlwa. Ekuhlalutyweni kokugqibela, insimbi engenasici yintsimbi enezinto ezingcolileyo (kodwa ezi zinto zingcolileyo zi-corrosion-resistant kune-steel ^^), kunye nentsimbi inokusabela kunye nezinye izinto.

Ukuhlolwa koMgangatho womphezulu:

Umgangatho ophezulu we-304 yensimbi engenasici inqunywe ngokukodwa yinkqubo yokukha emva kokunyanga ukushisa. Ukuba ulusu lwe-oxide oluphezulu olwenziwe yinkqubo yonyango yangaphambili yokushisa lunzima okanye ulwakhiwo alulingani, i-pickling ayikwazi ukuphucula ukugqitywa komphezulu kunye nokufana. Ngoko ke, ingqwalasela epheleleyo kufuneka ihlawulwe ekufudumeni kwonyango lokushisa okanye ukucocwa kwendawo ngaphambi kokuba unyango lobushushu.
Ukuba ubungqingqwa be-oxide ye-stainless steel plate ayifani, uburhabaxa bomgangatho wesiseko sentsimbi phantsi kwendawo engqindilili kunye nendawo encinci iyahluka. Ukwahluka, ngoko ubuso bentsimbi yentsimbi ayilingani. Ngoko ke, kuyimfuneko ukwenza ngokufanayo izikali ze-oxide ngexesha lokunyanga ukushisa kunye nokufudumala. Ukuhlangabezana nale mfuno, kufuneka kuqwalaselwe le miba ilandelayo:
Ukuba ioli ifakwe kumphezulu we-workpiece xa i-plate yensimbi engenasici ishushu, ubukhulu kunye nokubunjwa kwesikali se-oxide kwindawo efakwe kwi-oyile iya kuhluka kubukhulu kunye nokubunjwa kwesikali se-oxide kwezinye iindawo, kwaye i-carburization iya kwenzeka. Inxalenye ye-carburized yesiseko sesinyithi phantsi kwesikhumba se-oxide iya kuhlaselwa kakhulu nge-asidi. Amaconsi e-oyile atshizwe sisitshisi se-oyile esindayo ngexesha lokutsha kokuqala aya kuba nefuthe elikhulu ukuba afakwe kwi-workpiece. Inokuba nefuthe xa iminwe yomqhubi idityaniswe nomsebenzi. Ngoko ke, umqhubi akafanele achukumise ngokuthe ngqo iinxalenye zetsimbi engenanto ngezandla zakhe, kwaye ungavumeli ukuba i-workpiece ibe neoli entsha. Iiglavu ezicocekileyo kufuneka zinxitywe.
Ukuba kukho ioyile yokuthambisa encanyathiselwe kumphezulu we-workpiece ngexesha lokucubungula okubandayo, kufuneka ihlanjululwe ngokupheleleyo kwi-agent ye-trichlorethylene degreasing kunye nesisombululo sesoda ye-caustic, emva koko icocwe ngamanzi ashushu, emva koko iphathwe ngobushushu.
Ukuba kukho ukungcola kumphezulu wepleyiti yensimbi engenasici, ngakumbi xa i-organic matter okanye umlotha unamathele kwi-workpiece, ukufudumeza kuya kuchaphazela ngokuqinisekileyo isikali.
Ukwahluka kwi-atmospheric kwisithando somlilo sensimbi engenasici I-atmospheric kwisithando somlilo ihluke kwinxalenye nganye, kwaye ukubunjwa kwesikhumba se-oxide kuya kutshintsha kwakhona, okuyisizathu sokungalingani emva kokukhetha. Ngoko ke, xa ukufudumala, umoya kwindawo nganye yesithando somlilo kufuneka ufane. Ukuza kuthi ga ngoku, ukujikeleza kwe-atmosfera kufuneka kuqwalaselwe.

Ukongezelela, ukuba izitena, i-asbestos, njl njl ezenza iqonga elisetyenziselwa ukufudumeza i-workpiece iqulethe amanzi, amanzi aya kuba ngumphunga xa eshushu, kunye ne-atmosphere yenxalenye edibene ngqo nomphunga wamanzi iya kwahluka kwezinye iindawo. eyahlukileyo nje. Ke ngoko, izinto ezinxibelelana ngokuthe ngqo ne-workpiece eshushu kufuneka zomiswe ngokupheleleyo phambi kokusetyenziswa. Nangona kunjalo, ukuba ibekwe kwindawo yokushisa emva kokumisa, ukufuma kuya kuhlala kuxinana phezu kwendawo yokusebenza phantsi kweemeko zokufuma okuphezulu. Ngoko ke, kungcono ukuyomisa ngaphambi kokusetyenziswa.
Ukuba inxalenye yepleyiti yensimbi engenasici iya kunyangwa inesikali esishiyekileyo phambi konyango lobushushu, kuya kubakho iyantlukwano kubunzima kunye nokwakheka kwesikali phakathi kwenxalenye kunye nesikali esishiyekileyo kunye nenxalenye ngaphandle kwesikali emva kokufudumeza, okukhokelela kumphezulu ongalinganiyo emva kokucholwa, ngoko ke kufuneka sinikele ingqalelo kunyango lokugqibela lobushushu, kodwa kufuneka sinikele ingqalelo epheleleyo kunyango lobushushu obuphakathi kunye nokukha.
Kukho umahluko kwisikali se-oxide esiveliswe kwindawo yensimbi engenasici edibana ngokuthe ngqo negesi okanye ilangatye leoli kunye nendawo engadibananga nayo. Ngoko ke, kuyimfuneko ukugcina isiqwenga sonyango ngokuqhagamshelana ngqo nomlomo womlilo ngexesha lokufudumala.
Isiphumo sokugqitywa komphezulu ohlukeneyo wepleyiti yensimbi engenasici
Ukuba ukugqitywa komphezulu kuyahluka, nokuba kushushu ngexesha elifanayo, izikali ze-oxide kwiindawo ezinqabileyo kunye nezilungileyo zobuso ziya kuhluka. Ngokomzekelo, kwindawo apho i-defect yendawo ihlanjululwe khona kunye nendawo apho ingazange ihlambuluke khona, imeko yokwenza isikhumba se-oxide sihluke, ngoko ke umphezulu we-workpiece emva kwe-pickling ayilingani.

I-coefficient yokudlulisa ubushushu iyonke yentsimbi ixhomekeke kwezinye izinto ngaphandle kwe-thermal conductivity yentsimbi. Kwiimeko ezininzi, i-coefficient yokutshatyalaliswa kobushushu befilimu, isikali kunye nemeko yendawo yentsimbi. Intsimbi engenastainless igcina umphezulu icocekile, ngoko ke ihambisa ubushushu ngcono kunezinye iintsimbi ezine-thermal conductivity ephezulu. I-Liaocheng Suntory Stainless Steel inikeza i-8. Imigangatho yobugcisa kwiipleyiti zensimbi ezingenasici Amandla aphezulu ensimbi engenasici kunye nokumelana ne-corrosion egqwesileyo, ukugoba ukusebenza, ukuqina kweendawo ezidibeneyo, kunye nokusebenza kwesitampu seendawo ezidibeneyo kunye neendlela zabo zokuvelisa. Ngokukodwa, i-C: 0.02% okanye ngaphantsi, i-N: 0.02% okanye ngaphantsi, i-Cr: i-11% okanye ngaphezulu nangaphantsi kwe-17%, umxholo ofanelekileyo we-Si, Mn, P, S, Al, Ni, kwaye uyanelisa i-12≤Cr Mo 1.5Si≤ 17. Ipleyiti yensimbi engenasici nge-30 (5CMNi) ne-30 (5CMNi) Cu)≤4, Cr 0.5(Ni Cu) 3.3Mo≥16.0, 0.006≤CN≤0.030 ifudunyezwe ukuya kwi-850～1250 °C, kwaye emva koko iqhutywe kwi-1 ° C / s Unyango lokushisa lokupholisa ngaphezu kweqondo lokupholisa. Ngale ndlela, inokuba yintsimbi ephezulu yokuqina enesakhiwo esine-martensite engaphezu kwe-12% ngomthamo, amandla aphezulu ngaphezulu kwe-730MPa, ukumelana nokugqwala kunye nokusebenza ukugoba, kunye nokuqina okugqwesileyo kwindawo echaphazeleke bubushushu. Ukusebenzisa kwakhona i-Mo, B, njl. Idangatye leoksijini kunye nerhasi alinako ukusika ipleyiti yentsimbi engatyiwayo ngenxa yokuba intsimbi engatyiwa akulula ukuba ifakwe ioksijini. I-5CM i-plate yensimbi engenasici kufuneka iqhutywe ngezixhobo ezikhethekileyo zokusika, ezifana: (1) Umshini wokusika i-Laser kunye ne-wattage enkulu (umatshini wokusika i-laser) (2) umshini wokusika i-oyile (3) Ukugaya i-disc (4) Isarha yesandla somntu (5) Umshini wokusika ucingo (umatshini wokusika ucingo). (6) Ukusika ijethi yamanzi yoxinzelelo oluphezulu (ukusika ijethi yamanzi yobuchwephesha: Shanghai Xinwei) (7) Ukusika i-Plasma arc