304/304L umbhobho wentsimbi engenamthungo yenye yezinto ezibaluleke kakhulu ekrwada ekwenzeni imibhobho yentsimbi engenasici.I-304 / 304L insimbi engenasici yinto eqhelekileyo ye-chromium-nickel alloy steel stainless resistance resistance and resistance resistance, efanelekileyo kakhulu ekwenzeni izixhobo zombhobho.
I-304 insimbi engenasici inokumelana ne-oxidation efanelekileyo kunye nokumelana nokugqwala, kwaye inokugcina uzinzo kunye namandla esakhiwo sayo kwiindawo ezahlukeneyo zeekhemikhali.Ukongeza, ikwanayo nokusebenza okugqwesileyo kokusebenza kunye nokuqina, okulungele ukusebenza okubandayo kunye nokutshisa, kwaye inokufikelela kwiimfuno zokwenziwa kwezixhobo ezahlukeneyo zemibhobho.
Ukufakelwa kwemibhobho yensimbi engenasici, ngokukodwa izixhobo zombhobho ezingenamthungo, zineemfuno eziphezulu zezixhobo kwaye zifuna ukutywinwa kakuhle kunye nokumelana noxinzelelo.Umbhobho wensimbi engenamthungo we-304 uhlala usetyenziselwa ukwenza izifakelo ezahlukeneyo zemibhobho ngenxa yamandla ayo aphezulu, ukuxhathisa ukubola kunye nomgangatho ongaphakathi ogudileyo, onje ngeengqiniba, iitiyi, iiflange, iintloko ezinkulu nezincinci, njl.
Kufuphi,304 umbhobho wentsimbi engenamthungoidlala indima ebalulekileyo ekwenzeni izixhobo zombhobho wensimbi engenasici, zibonelela ngokusebenza kakuhle kunye nomgangatho othembekileyo, kwaye zinika isiqinisekiso esibalulekileyo sokusebenza ngokukhuselekileyo kunye nokuqina kokufakelwa kwemibhobho.
Ngoko ke, ngaphambi kokushiya i-factory kwinkqubo yokuvelisa izinto eziluhlaza, kufuneka ihlaziywe ngokuphindaphindiweyo kwaye kufuneka ihlangabezane neemfuno eziqhelekileyo zokuvelisa izixhobo zombhobho.Nazi ezinye iindlela zokujonga ukusebenza kwe304/304Lumbhobho wentsimbi engenamthungo.
01.Uvavanyo lokubola
I-304 yombhobho yentsimbi engenamthungo kufuneka ibekwe phantsi kovavanyo lokumelana nokubola ngokwemimiselo esemgangathweni okanye indlela yokubola evunyelwene ngamaqela omabini.
Uvavanyo lwe-Intergranular corrosion: Injongo yolu vavanyo kukubona ukuba ingaba i-material inomkhwa wokubola kwe-intergranular.I-Intergranular corrosion luhlobo lwe-corrosion yendawo eyenza iintanda ze-corrosion kwimida yeenkozo zezinto, ekugqibeleni zikhokelela ekungaphumeleli kwezinto eziphathekayo.
Uvavanyo lokutya koxinzelelo:Injongo yolu vavanyo kukuvavanya ukuxhathisa kwe-corrosion yezixhobo kuxinzelelo kunye neendawo zokubola.I-Stress corrosion yindlela eyingozi kakhulu yokubola eyenza ukuba iintanda zenzeke kwiindawo ezigxininisiweyo, ezibangela ukuba izinto ziphuke.
Uvavanyo lwePitting:Injongo yolu vavanyo kukuvavanya ukukwazi kwesixhobo ukuxhathisa i-pitting kwindawo equkethe i-ion chloride.I-Pitting corrosion yindlela yengingqi ye-corrosion eyenza imingxuma emincinci kumphezulu wezinto eziphathekayo kwaye ngokuthe ngcembe yanda ukwenza iintanda.
Uvavanyo lokutya okufanayo:Injongo yolu vavanyo kukuvavanya uxhathiso lwe-corrosion iyonke yezixhobo kwindawo enomhlwa.I-corrosion efanayo ibhekisela ekubunjweni okufanayo kweengqimba ze-oxide okanye iimveliso ze-corrosion kumphezulu wezinto eziphathekayo.
Xa usenza iimvavanyo ze-corrosion, kuyimfuneko ukukhetha iimeko ezifanelekileyo zokuvavanya, ezifana ne-corrosion medium, ubushushu, uxinzelelo, ixesha lokuvezwa, njl njl. Emva kovavanyo, kuyimfuneko ukugweba ukuxhathisa kwe-corrosion yezinto ngokuhlolwa okubonakalayo, ukulinganisa ukulahleka kobunzima. , uhlalutyo lwe-metallographic kunye nezinye iindlela kwisampuli.
02.Ukuhlolwa kokusebenza kwenkqubo
Uvavanyo lwe-flattening: ibona amandla okuguqula umbhobho kwicala elisicaba.
Uvavanyo lwe-tensile: Ilinganisa amandla okuqina kunye nobude bemathiriyeli.
Uvavanyo lwempembelelo: Vavanya ukuqina kunye nokuxhathisa impembelelo yemathiriyeli.
Uvavanyo lwe-Flaring: vavanya ukuchasana kwetyhubhu kwi-deformation ngexesha lokwandiswa.
Uvavanyo lokuqina: Ukulinganisa ixabiso lobulukhuni bemathiriyeli.
Uvavanyo lwe-metallographic: jonga i-microstructure kunye nesigaba sokutshintsha kwezinto.
Uvavanyo lokugoba: Vavanya ukuguqulwa kunye nokungaphumeleli kombhobho ngexesha lokugoba.
Uvavanyo olungonakalisi: kubandakanywa uvavanyo lwangoku lwe-eddy, uvavanyo lwe-X-ray kunye novavanyo lwe-ultrasonic ukufumanisa iziphene kunye neziphene ngaphakathi kwityhubhu.
03.Uhlalutyo lwemichiza
Uhlalutyo lweekhemikhali zezinto eziphathekayo zemichiza ye-304 yombhobho yensimbi engenasici ingenziwa ngohlalutyo lwe-spectral, uhlalutyo lweekhemikhali, uhlalutyo lwe-spectrum yamandla kunye nezinye iindlela.
Phakathi kwabo, uhlobo kunye nomxholo wezinto eziphathekayo kunokumiselwa ngokulinganisa i-spectrum yezinto eziphathekayo.Kwakhona kunokwenzeka ukumisela uhlobo kunye nomxholo wezinto ngokuchithwa kweekhemikhali izinto eziphathekayo, i-redox, njl., kwaye emva koko nge-titration okanye uhlalutyo lwezixhobo.I-Energy spectroscopy yindlela ekhawulezayo nelula yokumisela uhlobo kunye nobungakanani bezinto kwimathiriyeli ngokuyichulumancisa ngomqa we-electron uze uchonge i-X-reyi enesiphumo okanye uphawu lwemitha.
Ngombhobho wensimbi ongenamthungo ongama-304, ukwakheka kweekhemikhali zawo kufuneka kufezekise iimfuno ezisemgangathweni, njengomgangatho waseTshayina we-GB/T 14976-2012 "umbhobho wentsimbi engenamthungo wokuthutha ulwelo", echaza izikhombisi ezahlukeneyo zemichiza ye-304 yombhobho wentsimbi engenamthungo. , ezifana nekhabhoni, i-silicon, i-manganese, i-phosphorus, isulfure, i-chromium, i-nickel, i-molybdenum, i-nitrogen kunye nezinye iindidi zomxholo.Xa uhlalutya iikhemikhali, le migangatho okanye iikhowudi kufuneka zisetyenziswe njengesiseko sokuqinisekisa ukuba ukubunjwa kweekhemikhali zezinto eziphathekayo kuyahlangabezana neemfuno.
Intsimbi (Fe): Umda
Ikhabhoni (C): ≤ 0.08% (304L umxholo wekhabhoni≤ 0.03%)
I-Silicon(Si):≤ 1.00%
IManganese (Mn): ≤ 2.00%
Phosphorus (P):≤ 0.045%
Isulfure (S): ≤ 0.030%
I-Chromium (Cr): 18.00% - 20.00%
Nickel(Ni):8.00% - 10.50%
La maxabiso aphakathi koluhlu olufunwa yimigangatho jikelele, kwaye ukwakheka kweekhemikhali ezithile kunokulungiswa kakuhle ngokwemigangatho eyahlukeneyo (umz. ASTM, GB, njl.) kunye neemfuno ezikhethekileyo zomenzi.
Uvavanyo lwe-04.Barometric kunye ne-hydrostatic
Uvavanyo loxinzelelo lwamanzi kunye novavanyo loxinzelelo lomoya lwe-304umbhobho wentsimbi engenamthungozisetyenziselwa ukuvavanya ukunyanzeliswa koxinzelelo kunye nokuqina komoya wombhobho.
Uvavanyo lweHydrostatic:
Lungiselela umzekelo: Khetha umzekelo ofanelekileyo ukuqinisekisa ukuba ubude kunye nedayamitha yomzekelo uyahlangabezana neemfuno zovavanyo.
Qhagamshela umzekelo: Xhuma umboniso kumatshini wokuvavanya i-hydrostatic ukuqinisekisa ukuba uxhulumaniso luvalwe kakuhle.
Qala uvavanyo: Tofa amanzi ngoxinzelelo oluchaziweyo kwisampulu kwaye ubambe ixesha elichaziweyo.Kwiimeko eziqhelekileyo, uxinzelelo lovavanyo luyi-2.45Mpa, kwaye ixesha lokubamba alikwazi ukuba ngaphantsi kwemizuzwana emihlanu.
Qwalasela iindawo ezivuzayo: Qwalasela umfuziselo wokuvuza okanye ezinye izinto ezingaqhelekanga ngexesha lovavanyo.
Rekhoda iziphumo: Rekhoda uxinzelelo kunye neziphumo zovavanyo, kwaye uhlalutye iziphumo.
Uvavanyo lweBarometric:
Lungiselela umzekelo: Khetha umzekelo ofanelekileyo ukuqinisekisa ukuba ubude kunye nedayamitha yomzekelo uyahlangabezana neemfuno zovavanyo.
Qhagamshela umzekelo: Xhuma umboniso kumatshini wokuvavanya uxinzelelo lomoya ukuze uqinisekise ukuba inxalenye yoqhagamshelo ivalwe kakuhle.
Qala uvavanyo: Tofa umoya ngoxinzelelo oluchaziweyo kwisampulu kwaye ubambe ixesha elichaziweyo.Ngokuqhelekileyo, uxinzelelo lovavanyo luyi-0.5Mpa, kwaye ixesha lokubamba lingalungiswa njengoko kufuneka.
Qwalasela iindawo ezivuzayo: Qwalasela umfuziselo wokuvuza okanye ezinye izinto ezingaqhelekanga ngexesha lovavanyo.
Rekhoda iziphumo: Rekhoda uxinzelelo kunye neziphumo zovavanyo, kwaye uhlalutye iziphumo.
Kufuneka kuqatshelwe ukuba uvavanyo kufuneka luqhutywe kwindawo efanelekileyo kunye neemeko, ezifana neqondo lokushisa, ukufuma kunye nezinye iiparitha kufuneka zihlangabezane neemfuno zovavanyo.Ngexesha elifanayo, kuyimfuneko ukubeka ingqalelo ekukhuseleni xa uqhuba iimvavanyo ukuphepha iimeko ezingalindelekanga ngexesha lovavanyo.
Ixesha lokuposa: Jul-26-2023