Bakin Karfe 304 1.4301

Bakin karfe 304 da bakin karfe 304L kuma an san su da 1.4301 da 1.4307 bi da bi. Nau'in 304 shine bakin karfe mafi dacewa kuma ana amfani dashi ko'ina. Har yanzu ana kiran shi da tsohon suna 18/8 wanda aka samo shi daga nau'in nau'in nau'in 304 na nau'in nau'i na 304 kasancewa 18% chromium da 8% nickel. Nau'in bakin karfe 304 shine austenitic sa wanda za'a iya zana mai zurfi sosai. Wannan kadarar ta haifar da 304 kasancewa mafi girman darajar da aka yi amfani da ita a aikace-aikace kamar sinks da tukwane. Nau'in 304L shine ƙananan nau'in carbon na 304. Ana amfani dashi a cikin ma'aunin ma'auni mai nauyi don ingantaccen weldability. Wasu samfurori irin su faranti da bututu na iya samuwa a matsayin kayan "dual bokan" wanda ya dace da ma'auni na 304 da 304L. 304H, babban nau'in abun ciki na carbon, kuma ana samunsa don amfani a yanayin zafi mai girma. Kayayyakin da aka bayar a cikin wannan takardar bayanan na yau da kullun ne don samfuran birgima da ASTM A240/A240M. Yana da kyau a yi tsammanin takamaiman bayanai a cikin waɗannan ƙa'idodin su kasance iri ɗaya amma ba lallai ba ne su yi kama da waɗanda aka bayar a cikin wannan takardar bayanan.

Aikace-aikace

• Kayan miya
• Maɓuɓɓugan ruwa, sukurori, goro & kusoshi
• Sinks & fantsama baya
• Dabarun gine-gine
• Tuba
• Brewery, abinci, kiwo da kuma Pharmaceutical samar kayayyakin aiki
• Sanitary ware da tarkace

Forms da aka kawo

• Shet
• Tari
• Bar
• Plate
• Bututu
• Tube
• Kwanci
• Kayan aiki

Alamar Zayyana

Bakin karfe 1.4301/304 shima yayi daidai da: S30400, 304S15, 304S16, 304S31 da EN58E.

Juriya na Lalata

304 yana da kyakkyawan juriya na lalata a cikin mahalli da kuma lokacin da ake hulɗa da kafofin watsa labarai na lalata daban-daban. Lalacewar rami da ramuka na iya faruwa a wuraren da ke ɗauke da chlorides. Damuwar lalatawar damuwa na iya faruwa sama da 60°C.

Juriya mai zafi

304 yana da kyau juriya ga hadawan abu da iskar shaka a cikin tsaka-tsakin sabis har zuwa 870 ° C kuma a ci gaba da sabis zuwa 925 ° C. Koyaya, ci gaba da amfani da shi a 425-860 ° C ba a ba da shawarar ba. A cikin wannan misali ana ba da shawarar 304L saboda juriya ga hazo carbide. Inda ake buƙatar babban ƙarfi a yanayin zafi sama da 500°C kuma har zuwa 800°C sa 304H ana bada shawarar. Wannan abu zai riƙe juriyar lalata mai ruwa.

Kera

Ya kamata a yi duk kayan aikin ƙarfe kawai tare da kayan aikin da aka keɓe ga kayan bakin karfe. Dole ne a tsaftace kayan aiki da wuraren aiki sosai kafin amfani. Waɗannan matakan kiyayewa suna da mahimmanci don guje wa ƙetare gurɓataccen ƙarfe ta hanyar gurɓatattun ƙarfe masu sauƙi waɗanda zasu iya canza launin saman samfurin da aka ƙera.

Cold Aiki

Bakin karfe 304 yana aiki da ƙarfi. Hanyoyin kera da suka haɗa da aikin sanyi na iya buƙatar matsakaicin matakin tsukewa don rage taurin aiki da guje wa tsagewa ko tsagewa. A ƙarshen ƙirƙira ya kamata a yi amfani da cikakken aikin cirewa don rage damuwa na ciki da haɓaka juriya na lalata.

Zafafan Aiki

Hanyoyin ƙirƙira kamar ƙirƙira, waɗanda suka haɗa da aiki mai zafi yakamata su faru bayan dumama iri ɗaya zuwa 1149-1260 ° C. Abubuwan da aka ƙera ya kamata a sanyaya su cikin sauri don tabbatar da matsakaicin juriya na lalata.

Injin iya aiki

304 yana da kayan aiki mai kyau. Za'a iya haɓaka injina ta amfani da dokoki masu zuwa: Yanke gefuna dole ne a kiyaye kaifi. Ƙunƙarar gefuna suna haifar da taurin aiki. Yanke yakamata ya zama haske amma zurfin isa don hana taurin aiki ta hawa saman kayan. Ya kamata a yi amfani da na'urori masu fashewa don taimakawa wajen tabbatar da cewa swarf ya rage daga aikin. Low thermal conductivity na austenitic gami yana haifar da zafi maida hankali a yankan gefuna. Wannan yana nufin masu sanyaya da man shafawa sun zama dole kuma dole ne a yi amfani da su da yawa.

Maganin Zafi

Ba za a iya taurare bakin karfe 304 ta hanyar magani mai zafi ba. Ana iya yin maganin maganin ko annealing ta saurin sanyaya bayan dumama zuwa 1010-1120 ° C.

Weldability

Ayyukan walƙiya na Fusion don nau'in bakin karfe 304 yana da kyau duka tare da ba tare da filaye ba. Sandunan filler da aka ba da shawarar don bakin karfe 304 shine matakin bakin karfe 308. Don 304L filler da aka ba da shawarar shine 308L. Yankuna masu nauyi na iya buƙatar annealing bayan walda. Ba a buƙatar wannan matakin don 304L. Ana iya amfani da maki 321 idan maganin zafi bayan walda ba zai yiwu ba.

Haɗin Sinanci)