Indlela yokuPasa iStainless

Intsimbi engatyiwayo yaziwa ngokubanzi ngokumelana nokugqwesa kwayo okugqwesileyo, ukomelela, kunye nokuphila ixesha elide. Kodwa nelona nqanaba liphezulu lensimbi engenasici lingazuza kunyango oluphezulu olubizwa ngokuba yi-stainlessukuthandabuza. Ukuba uyazibuzaindlela yokudlula ngaphandle kwe-stainless, eli nqaku liza kukuhamba ngayo yonke into oyifunayo ukuyazi-ukusuka kwiyiphi i-passivation, kutheni ibalulekile, kunye nemiyalelo yesinyathelo-nge-nyathelo malunga nendlela yokwenza ngokufanelekileyo.

Esi sikhokelo siziswe kuwesakysteel, umthengisi othembekileyo wehlabathi jikelele weemveliso zensimbi ezingenasici, ezinikezela ngenkxaso yobugcisa kunye nezixhobo ze-premium kumashishini emhlabeni jikelele.

Yintoni iPasivation?

Ukunyamezelayinkqubo yeekhemikhali esusa isinyithi samahhala kunye nezinye izinto ezingcolileyo ukusuka kumphezulu wensimbi engenasici kwaye ikhuthaza ukubunjwa komgangatho onqabileyo, okhuselayo we-oxide. Lo maleko weoksidi—ikakhulu ichromium oxide—usebenza njengekhaka nxamnye nomhlwa kunye nomhlwa.

Ngelixa insimbi engenastainless ngokwemvelo isenza olu maleko xa ibonakaliswe emoyeni, inkqubo yokudlula iyayiphucula kwaye iyizinzise, ngakumbi emva kweenkqubo zokuvelisa ezifana nomatshini, ukuwelda, ukugawula, okanye ukunyanga ubushushu.

Kutheni iPasivation ibalulekile

I-passivation ayilonyathelo nje lokuzikhethela-ibalulekile kumashishini amaninzi afuna imigangatho ephezulu yokucoceka, ukuxhathisa ukubola, kunye nokuqina.

Iingenelo zokugqitha intsimbi estainless ziquka:

• Uphuculo lokumelana nomhlwa

• Ukususwa kweentsimbi ezifakwe ngaphakathi

• Ukuphelisa ukungcoliseka komhlaba

• Imbonakalo yomphezulu eyongeziweyo

• Ubomi benkonzo eyandisiweyo kwiindawo ezinzima

sakysteelicebisa i-passivation ingakumbi kumalungu angenastainless asetyenziswa elwandle, kumayeza, kwibakala lokutya, nakwimizi-mveliso yokulungisa imichiza.

Kufuneka uyigqithise nini iStainless Steel?

Ukugqithiswa kufuneka kuthathelwe ingqalelo emva kwayo nayiphi na inkqubo enokuthi iveze okanye ingcolise umphezulu wensimbi engenasici:

• Umatshini okanye ukusika

• I-Welding okanye i-brazing

• Ukukhetha okanye ukuhlambulula

• Ukusila okanye ukugulisa

• Ukuphatha izixhobo ze-carbon steel

• Ukuvezwa kwizinto ezingcolisayo okanye iindawo ezinekloridi

Ukuba amalungu akho angenasiphene abonisa iimpawu zokuguquka kombala, ungcoliseko, okanye ukuncipha kokunganyangeki komhlwa, lixesha lokuba ucinge ngokudlula.

Ngawaphi amaBanga eStainless Steel anoKugqithiswa?

Uninzi lwamabakala ensimbi engenasici lunokugqithiswa, kodwa iziphumo zinokuhluka ngokusekelwe kwi-alloy.

sakysteelibonelela ngesikhokelo sokukhetha imathiriyeli ukunceda abathengi ukuba bakhethe amabakala angenaziphene adlulayo kakuhle kwaye asebenze ngokuthembekileyo kwindawo ezonakalisayo.

Indlela yokuPasa iStainless Steel: Inkqubo yeNyathelo ngeNyathelo

Kukho iintlobo ezimbini eziphambili zeearhente zokudlula ezisetyenziswa kwishishini:

• Nitric acid-basedizisombululo

• Citric acid-basedizisombululo (zinobuhlobo ngakumbi kokusingqongileyo)

Nantsi inkcazo jikelele yenkqubo yokugqithisa:

Inyathelo 1: Coca uMphezulu

Ukucocwa ngokucokisekileyo kubalulekile ngaphambi kokudlula. Naluphi na ukungcola, ioli, igrisi, okanye intsalela inokuphazamisa ukusabela kweekhemikhali.

Iindlela zokucoca ziquka:

• Iiarhente zokucoca ialkaline

• Iidegreaser

• Izisombululo zokucoca

• Ukucoca nge-ultrasonic (kumalungu amancinci)

Pula ngamanzi acocekileyo kwaye womise ukuba kuyimfuneko.

Inyathelo lesi-2: Nciphisa okanye iPickle (ukuba iyafuneka)

Ukuba umphezulu wensimbi engenasici unomlinganiselo onzima, i-weld oxides, okanye i-discoloration, yenza aukukhainkqubo ngaphambi kokudlula.

I-Pickling iyasusa:

• Izaleko zeoksidi

• Ukutshintsha kombala weweld

• I-tint yobushushu

Ukuchola ngokuqhelekileyo kwenziwa ngeasidi eyomeleleyo efana ne-nitric-hydrofluoric acid okanye i-pickling paste. Emva kokucoca, hlambulula kakuhle ngaphambi kokuba uqhubele phambili kwi-passivation.

Inyathelo lesi-3: Faka iSicombululo sePassivation

Gxila inxalenye ecocekileyo kwindawo yokuhlambela i-passivation okanye usebenzise isisombululo ngesandla.

Indlela ye-nitric acid:

• Ugxininiso: 20-25% i-nitric acid

• Ubushushu: 50–70°C

• Ixesha: 20-30 imizuzu

Indlela yeCitric acid:

• Ugxininiso: 4-10% i-citric acid

• Ubushushu: 40–60°C

• Ixesha: 30-60 imizuzu

Sebenzisa rhoqoiplastiki okanye izikhongozeli zentsimbiukuphepha ukungcoliseka ngexesha lokuntywiliselwa.

Inyathelo lesi-4: Hlanza ngokucokisekileyo

Emva kwexesha elifunekayo kwindawo yokuhlamba i-passivation, hlambulula inxalenye ngeamanzi adibeneyo okanye adibeneyo. Amanzi etephu asenokushiya ngasemva izimbiwa okanye ukungcola.

Qinisekisa ukuba zonke iintsalela zeasidi zisuswe ngokupheleleyo.

Inyathelo lesi-5: Yomisa umphezulu

Yomisa usebenzisa umoya ocinezelweyo okanye amalaphu acocekileyo. Kuphephe ukungcoliswa kwakhona kwizixhobo zentsimbi yekhabhoni okanye amalaphu amdaka.

Ukusetyenziswa okubalulekileyo (umzekelo, amayeza okanye ezonyango), iindawo zinokomiswa kwigumbi elicocekileyo okanye kwigumbi lokudlula.

Ngokuzikhethela: Vavanya umphezulu

Iindawo ezigqithisiweyo zinokuvavanywa ngokusebenzisa:

• Uvavanyo lwe-sulfate yethusi(ASTM A967): Ichonga intsimbi yasimahla

• Uvavanyo lwegumbi lokufuma okuphezulu: Ibonisa iinxalenye kwindawo efumileyo ukujonga ukuxhathisa umhlwa

• Ukuntywiliselwa emanzini okanye iimvavanyo zokutshiza ityuwa: Uvavanyo lomgangatho wokusebenza komhlwa

sakysteelisebenzisa imigangatho ye-ASTM A967 kunye ne-A380 ukuqinisekisa umgangatho wokudlula kunye nokuqinisekisa ukhuseleko olufanelekileyo lokuhlwa.

Iingcebiso zoKhuseleko kwiPasivation

• Hlala unxibe izixhobo zokukhusela: iiglavu, izibuko, ifaskoti

• Sebenza kwindawo engenamoya

• Ungathathi hlangothi kwaye ulahle iiasidi ngokwemigaqo yendawo

• Kuphephe ukusebenzisa iibhrashi zentsimbi okanye izixhobo ezinokuphinda zibuyisele ungcoliseko

• Gcina iindawo ezigqithisiweyo kwindawo ecocekileyo, eyomileyo

Usetyenziso oluFuna i-Pasivated Stainless Steel

I-passivation ibalulekile kumalungu asetyenziswa ku:

• Izixhobo zokulungisa ukutya neziselo

• Oomatshini bezonyango kunye namayeza

• Izakhiwo ze-aerospace kunye neenqwelomoya

• Izityalo zekhemikhali kunye nepetrochemical

• Ukwenziwa kweSemiconductor

• Ufakelo lwaselwandle nolwaselunxwemeni

sakysteelibonelela ngeemveliso zetsimbi ezingenasici ezilungele ukugqitha kuzo zonke ezi zicelo zingentla, zixhaswe kukulandeleka kwezinto kunye neziqinisekiso zomgangatho.

Iindlela ezizezinye kunye noNyango loMphezulu oluNxulumeneyo

Ukongeza kwi-passivation, ezinye iiprojekthi zinokuzuza koku:

• Electropolishing:Isusa umaleko obhityileyo womphezulu ukuze ucoceke kakhulu kwaye ugqibezele ngokugudileyo

• Ukugulisa oomatshini:Yandisa ukukhanya komphezulu kwaye isuse ungcoliseko

• UkukhaYomelele kune-passivation, esetyenziselwa ukucoca i-welds kunye nokulinganisa

• Iingubo ezikhuselayo:I-epoxy, iTeflon, okanye i-ceramic coatings ukwenzela ukuqina okongeziweyo

Thethasakysteelukufumanisa olona nyango lungcono emva kokwenziwa kwesicelo sakho esingenasici.

Ukuqukumbela: Ungayigqithisa Njani iNtsimbi eNgatyiwayo ukuze usebenze kakhulu

I-Passivation yinkqubo ebalulekileyo yokugqiba eyenza ukuxhathisa ukubola kwensimbi engenasici ngokucoca ikhemikhali kunye nokubuyisela umaleko wayo okhuselayo wechromium oxide. Nokuba usebenza kumzi mveliso wokutya, imveliso yamayeza, okanye ulwakhiwo lwaselwandle, ukugqithisela iinxalenye zakho zentsimbi engenakutyiwa kuqinisekisa ukuba zisebenza ngeyona ndlela ingcono kwiimeko ezirhabaxa.

Ngokucocwa ngokufanelekileyo, ukuntywiliselwa, ukuhlanjululwa, kunye nokuvavanya, insimbi engenasici inokufezekisa amandla ayo apheleleyo ekuhlala ixesha elide kunye nokuchasana nomhlwa. Kwaye ngenkxaso yomthengisi othembekileyo onjesakysteel, unokuqinisekisa ukuba izinto zakho ezingenasici zicutshungulwa ngokufanelekileyo kwaye zilungele inkonzo.