Musamman 304 304L Bakin Karfe Plate
Siffofin farantin bakin karfe
1. Weldability
Amfani daban-daban na samfur yana da buƙatu daban-daban don aikin walda.Ajin tableware gabaɗaya baya buƙatar aikin walda, har ma ya haɗa da wasu kamfanonin tukunya.Koyaya, yawancin samfuran suna buƙatar aikin walda mai kyau na kayan albarkatun ƙasa, kamar kayan tebur na aji na biyu, kofuna na thermos, bututun ƙarfe, dumama ruwa, masu rarraba ruwa, da sauransu.
2. Juriya na lalata
Yawancin samfuran bakin karfe suna buƙatar juriya mai kyau na lalata, irin su Class I da II tableware, kayan dafa abinci, injin dumama ruwa, masu ba da ruwa, da sauransu. sannan a zuba bayan wani lokaci.Cire maganin, wanke da bushe, kuma auna nauyin hasara don sanin matakin lalata (Lura: Lokacin da samfurin ya goge, abun ciki na Fe a cikin zane mai laushi ko yashi zai haifar da tsatsa a saman yayin gwajin).
3. Aikin goge goge
A cikin al'ummar yau, samfuran bakin karfe suna goge gabaɗaya yayin samarwa, kuma samfuran ƴan kaɗan ne kawai kamar na'urar dumama ruwa da na'urar rarraba ruwa ba sa buƙatar gogewa.Saboda haka, wannan yana buƙatar cewa aikin polishing na albarkatun ƙasa yana da kyau sosai.Babban abubuwan da ke shafar aikin gogewa sune kamar haka:
(1) lahanin saman kayan albarkatun ƙasa.Kamar karce, pitting, pickling, da dai sauransu.
(2)Matsalar albarkatun kasa.Idan taurin ya yi ƙasa da ƙasa, ba zai zama da sauƙi don gogewa ba yayin gogewa (kayan BQ ba ta da kyau), kuma idan taurin ya yi ƙasa sosai, yanayin kwasfa na orange yana da sauƙin bayyana a saman yayin zane mai zurfi, don haka yana tasiri. dukiya BQ.Abubuwan BQ tare da babban taurin suna da kyau.
(3) Don samfurin da aka zana, ƙananan ƙananan baƙar fata da RIDGING za su bayyana a saman yankin tare da adadi mai yawa na lalacewa, don haka yana rinjayar aikin BQ.
4. Juriya mai zafi
Juriya na zafi yana nufin cewa bakin karfe na iya kula da kyawawan kaddarorinsa na zahiri da na inji a babban yanayin zafi.
Tasirin carbon: Carbon yana da ƙarfi da ƙarfi kuma yana daidaita shi a cikin bakin karfe na austenitic.Abubuwan da ke ƙayyade austenite da fadada yankin austenite.Ƙarfin carbon don samar da austenite kusan sau 30 na nickel, kuma carbon wani abu ne mai tsaka-tsaki wanda zai iya ƙara ƙarfin austenitic bakin karfe ta hanyar ƙarfafa bayani mai ƙarfi.Carbon kuma yana iya haɓaka juriyar lalatawar baƙin ƙarfe austenitic a cikin chloride mai yawan gaske (kamar 42% MgCl2 tafasasshen bayani).
Duk da haka, a cikin austenitic bakin karfe, carbon ne sau da yawa a matsayin cutarwa kashi, yafi saboda a karkashin wasu yanayi (kamar waldi ko dumama a 450 ~ 850 ° C) a cikin lalata juriya na bakin karfe, carbon iya mu'amala da carbon a cikin karfe.Chromium yana samar da mahadi na nau'in carbon mai girma-chromium Cr23C6, wanda ke haifar da raguwar chromium na gida, wanda ke rage juriya na lalata ƙarfe, musamman juriya ga lalatawar intergranular.saboda haka.Yawancin sabbin ƙera chromium-nickel austenitic bakin karafa tun daga shekarun 1960s nau'ikan carbon ne marasa ƙarancin ƙarfi tare da abun cikin carbon ƙasa da 0.03% ko 0.02%.Ana iya sanin cewa yayin da abun da ke cikin carbon ke raguwa, raunin lalata na intergranular na karfe yana raguwa.Lokacin da abun ciki na carbon ya kasance ƙasa da 0.02% yana da mafi kyawun tasiri, kuma wasu gwaje-gwajen kuma sun nuna cewa carbon kuma yana haɓaka halayen lalata na chromium austenitic bakin karfe.Saboda illa mai cutarwa na carbon, ba wai kawai abubuwan da ke cikin carbon ya kamata a sarrafa su a matsayin ƙasa kamar yadda zai yiwu a cikin tsarin narkewa na bakin karfe na austenitic ba, amma har ma a cikin tsarin aiki mai zafi, sanyi da magani mai zafi don hana karuwar carbon akan. saman bakin karfe kuma kauce wa chromium carbides Precipitate.
5. Juriya na lalata
Lokacin da adadin kwayoyin chromium a cikin karfe bai gaza 12.5% ba, za a iya canza yuwuwar wutar lantarki daga karfen da ba ta dace ba zuwa yuwuwar wutar lantarki mai kyau.Hana lalata electrochemical.
Matsayin kisa na bakin karfe farantin karfe
Bakin karfe farantin yana da m surface, high plasticity, tauri da kuma inji ƙarfi, kuma yana da resistant zuwa lalata ta acid, alkaline gas, mafita da sauran kafofin watsa labarai.Karfe ne da ba ya yin tsatsa cikin sauki, amma ba shi da tsatsa kwata-kwata.Bakin karfe yana nufin farantin karfe mai juriya da lalata ta hanyoyin sadarwa masu rauni kamar yanayi, tururi da ruwa, yayin da farantin karfe mai juriya na acid yana nufin farantin karfe mai jure lalata ta hanyar sinadarai masu lalata kamar acid, alkali. da gishiri.Farantin bakin karfe ya kasance sama da karni daya tun lokacin da ya fito a farkon karni na 20.
Bakin karfe farantin gaba ɗaya kalma ce ta bakin karfe da farantin karfe mai jure acid.An gabatar da shi a farkon wannan karni, ci gaban farantin karfe ya kafa muhimmin tushe na kayan aiki da fasaha don bunkasa masana'antu na zamani da ci gaban kimiyya da fasaha.Akwai nau'ikan faranti na bakin karfe da yawa tare da kaddarorin daban-daban.A hankali ya kafa nau'o'i da yawa a cikin tsarin ci gaba.
Bisa ga tsarin, an kasu kashi hudu: austenitic bakin karfe, martensitic bakin karfe (ciki har da hazo hardening bakin karfe), ferritic bakin karfe, da austenitic da ferritic duplex bakin karfe.Babban abun da ke ciki na sinadarai ko wasu halayen halayen a cikin farantin karfe an rarraba su cikin farantin bakin karfe chromium, chromium nickel bakin karfe farantin, chromium nickel molybdenum bakin karfe farantin, low carbon bakin karfe farantin, high molybdenum bakin karfe farantin, high tsarki bakin karfe farantin. , da dai sauransu.
Dangane da halaye na aiki da amfani da faranti na ƙarfe, an raba shi zuwa faranti na bakin karfe mai juriya na nitric acid, faranti na bakin karfe mai juriya na sulfuric acid, faranti mai jure bakin karfe, faranti mai jure damuwa, da babban ƙarfi. bakin karfe faranti.Dangane da halaye na aiki na farantin karfe, an raba shi zuwa ƙananan zafin jiki bakin karfe farantin karfe, farantin bakin karfe mara magnetic, farantin bakin karfe kyauta, superplastic bakin karfe farantin karfe, da dai sauransu Hanyar rarrabawa da aka saba amfani da ita shine rarraba bisa ga ka'ida. zuwa sifofin sifofi na farantin karfe, sifofin sinadarai na farantin karfe da haɗuwa da su biyu.
Gaba ɗaya kasu kashi martensitic bakin karfe, ferritic bakin karfe, austenitic bakin karfe, duplex bakin karfe da hazo hardening bakin karfe, da dai sauransu ko zuwa kashi biyu Categories: chromium bakin karfe da nickel bakin karfe.Abubuwan amfani da yawa na yau da kullun: ɓangaren litattafan almara da kayan aikin takarda masu musayar zafi, kayan inji, kayan rini, kayan sarrafa fim, bututun, kayan waje don gine-gine a yankunan bakin teku, da sauransu.
Bakin karfe farantin yana da m surface, high plasticity, tauri da kuma inji ƙarfi, kuma yana da resistant zuwa lalata ta acid, alkaline gas, mafita da sauran kafofin watsa labarai.Karfe ne da ba ya yin tsatsa cikin sauki, amma ba shi da tsatsa kwata-kwata.
Kaurin ƙafa da daidaitaccen kauri na farantin karfe
Kauri na ƙafa yana nufin cewa ainihin kauri bai bambanta da kauri na ka'idar ba (wanda ake kira kaurin lakabin), wanda ƙaramin bambanci ne mara kyau.Idan kaurin lakabin ya kasance 1.0MM, kaurin ƙafar da ake buƙata gabaɗaya shine aƙalla kusan 0.98MM-1.0MM, kuma kaurin ƙafar na iya zama Ana fahimtarsa da "kauri isa", kuma daidaitaccen kauri shine kauri na ka'idar.Ana lakafta muryoyin injinan ƙarfe lokacin da suke barin masana'anta, wanda ke nuna kauri na ka'idar.Wannan shine ma'aunin kauri.
