Gabatarwa

Grade 304 shine daidaitaccen bakin karfe "18/8"; shine mafi sauƙin amfani kuma mafi yawan amfani da bakin karfe, ana samunsa a cikin nau'ikan samfura, siffofi da ƙarewa fiye da kowane. Yana da kyawawan halaye na ƙira da walda. Tsarin austenitic na Grade 304 yana ba shi damar zana shi sosai ba tare da an yi masa a tsakiya ba, wanda ya sa wannan matakin ya zama mafi rinjaye a cikin ƙera sassan bakin karfe da aka zana kamar sink, kayan rami da tukwane. Don waɗannan aikace-aikacen, abu ne da aka saba amfani da nau'ikan "304DDQ" (Ingancin Zane Mai Zurfi). Grade 304 yana da sauƙin birki ko birgima cikin sassa daban-daban don aikace-aikace a fannoni na masana'antu, gine-gine, da sufuri. Grade 304 kuma yana da kyawawan halaye na walda. Ba a buƙatar annealing bayan walda lokacin walda sassa masu siriri.

Grade 304L, sigar carbon mai ƙarancin carbon ta 304, ba ta buƙatar annealing bayan walda don haka ana amfani da ita sosai a cikin kayan ma'aunin nauyi (sama da kusan 6mm). Grade 304H tare da babban abun cikin carbon ɗinsa yana samun aikace-aikace a yanayin zafi mai yawa. Tsarin austenitic kuma yana ba waɗannan maki kyakkyawan tauri, har ma da yanayin zafi mai ban tsoro.

Maɓallan Kadarorin

An ƙayyade waɗannan kaddarorin don samfurin da aka yi birgima (faranti, takarda da coil) a cikin ASTM A240/A240M. An ƙayyade irin waɗannan kaddarorin amma ba lallai ba ne iri ɗaya ga wasu samfura kamar bututu da sanduna a cikin ƙayyadaddun ƙayyadaddun su.

Tsarin aiki

An bayar da daidaitattun jeri na kayan haɗin ƙarfe na ƙarfe 304 a cikin tebur 1.

Tebur 1.Jerin abubuwan da aka haɗa don bakin ƙarfe na 304

Kayayyakin Inji

An bayar da ƙa'idodin injiniya na yau da kullun don ƙarfe marasa ƙarfe na aji 304 a cikin tebur na 2.

Tebur na 2.Kayan aikin injiniya na bakin karfe mai daraja 304

Juriyar Tsatsa

Yana da kyau a wurare daban-daban na yanayi da kuma hanyoyin da ke lalata muhalli. Yana iya fuskantar tsatsa da tsatsa a cikin muhallin ɗumi na chloride, da kuma tsatsa da ke tsatsa a sama da digiri 60. Ana ɗaukarsa a matsayin mai jure wa ruwan sha tare da kimanin 200mg/L chlorides a yanayin zafi na yanayi, yana raguwa zuwa kimanin 150mg/L a digiri 60.

Juriyar Zafi

Kyakkyawan juriya ga iskar shaka a lokacin aiki na ɗan lokaci zuwa 870°C kuma yana ci gaba da aiki zuwa 925°C. Ba a ba da shawarar ci gaba da amfani da 304 a cikin kewayon 425-860°C ba idan juriya ga tsatsa a cikin ruwa mai zuwa yana da mahimmanci. Grade 304L ya fi juriya ga ruwan sama mai ɗauke da carbide kuma ana iya dumama shi zuwa kewayon zafin da ke sama.

Aji 304H yana da ƙarfi mafi girma a yanayin zafi mai yawa don haka ana amfani da shi sau da yawa don aikace-aikacen tsari da masu ɗauke da matsi a yanayin zafi sama da 500°C da kuma har zuwa kusan 800°C. 304H zai fara jin zafi a cikin kewayon zafin jiki na 425-860°C; wannan ba matsala ba ce ga aikace-aikacen zafin jiki mai yawa, amma zai haifar da raguwar juriyar tsatsa a cikin ruwa.

Maganin Zafi

Maganin Magani (Annealing) - Zafi zuwa 1010-1120°C kuma ya huce da sauri. Ba za a iya taurare waɗannan matakan ta hanyar maganin zafi ba.

Walda

Kyakkyawan iya walda ta hanyar duk hanyoyin haɗa ƙarfe na yau da kullun, duka tare da ƙarfe mai cikawa da kuma ba tare da shi ba. AS 1554.6 ya riga ya cancanci walda na 304 tare da Grade 308 da 304L tare da sandunan 308L ko electrodes (kuma tare da manyan silicon ɗinsu). Sassan walda masu nauyi a Grade 304 na iya buƙatar annealing bayan walda don mafi girman juriya ga tsatsa. Wannan ba a buƙatar Grade 304L. Hakanan ana iya amfani da Grade 321 azaman madadin 304 idan ana buƙatar walda mai nauyi kuma maganin zafi bayan walda ba zai yiwu ba.

Aikace-aikace

Aikace-aikace na yau da kullun sun haɗa da:

Kayan aikin sarrafa abinci, musamman a fannin yin giya, sarrafa madara da kuma yin ruwan inabi.

Bekunan girki, sink, kwano, kayan aiki da kayan aiki

Zane-zanen gine-gine, shingen gini da kuma kayan ado

Kwantenan sinadarai, gami da jigilar su

Masu Canja Zafi

Allon saka ko walda don haƙar ma'adinai, haƙa ƙasa da tace ruwa

Maƙallan da aka zana

Maɓuɓɓugan Ruwa