Ilimi- Kintai

Super austenitic bakin karfe 904L babban alloy austenitic bakin karfe ne tare da ƙarancin abun ciki na carbon. Yana da kyakkyawan juriya na lalatawa a cikin tsarma sulfuric acid kuma an tsara shi musamman don mahalli masu tsananin lalata. Tare da babban abun ciki na chromium da wadataccen abun ciki na nickel, ƙari na jan ƙarfe yana ba shi ƙarfin juriya na acid, musamman tsayin juriya ga pitting chloride da lalata lalata. Ba shi da sauƙi ga ɓarna da fashe-fashe, kuma yana da ɗan juriya ga lalata lalata fiye da sauran matakan ƙarfe. Yana da machinability mai kyau da weldability kuma ana iya amfani dashi a cikin tasoshin matsa lamba.

 

Performance

1. 904L Chemical Element

 

Abubuwan da ke cikin jiki na 904L

Yawan yawa: 8.00 g/cm³

• Matsayin narkewa: 1300 - 1390 ℃

• Ƙarfin ƙarfi: σb ≥ 520 MPa

• Tsawaitawa: δ ≥ 35%

 

 

lalata juriya

Ayyukan samarwa da sarrafawa

1) Ayyukan walda

Kamar janar bakin karfe, 904 L za a iya welded ta daban-daban waldi hanyoyin. Hanyoyin walda da aka fi amfani da su sune waldawar baka ta hannu ko walda mara kariya ta iskar gas. Ƙarfin lantarki ko ƙarfe na waya yana dogara ne akan abun da ke cikin kayan tushe kuma yana da tsabta mafi girma, tare da mafi girma abun ciki na molybdenum fiye da kayan tushe. Gabaɗaya, ba a buƙatar preheating kafin walda, amma a cikin ayyukan waje mai sanyi, don guje wa tururin ruwa, yankin haɗin gwiwa ko wuraren da ke kusa da shi na iya zama mai zafi iri ɗaya. Lura cewa zafin jiki na gida bai kamata ya wuce 100 ° C don guje wa tarawar carbon da lalata tsaka-tsaki ba. A lokacin walda, yana da kyau a yi amfani da ƙaramin shigarwar zafi, ci gaba da saurin walda. Gabaɗaya, ba a buƙatar maganin zafi bayan walda. Idan maganin zafi ya zama dole, ya kamata a yi zafi zuwa 1100-1150 ° C sannan a sanyaya cikin sauri.

 

2) Aikin injina

Halayen machining na 904 L sun yi kama da na sauran baƙin ƙarfe na austenitic. A lokacin aikin mashin ɗin, akwai hali don kayan aiki don tsayawa da kuma wahalar aiki don faruwa. Ya kamata a yi amfani da kayan aikin rake mai ƙarfi mai ƙarfi, kuma a yi amfani da mai da sulfurized da chlorinated a matsayin yankan sanyaya. Ya kamata a tsara kayan aiki da tsari don rage ƙarfin aiki. Ya kamata a kauce wa saurin yankan da sauri da ƙimar ciyarwa yayin aikin yanke.

 

Aikace-aikace filayen

Masana'antar man fetur da sinadarai

Reactors, masu musayar zafi, bututu, da dai sauransu, suna yin fice sosai wajen sarrafa ruwa mai ƙarfi kamar su sulfuric acid da phosphoric acid.

Rashin iskar gas mai lalata

Tushen bututun mai, hasumiya mai ɗaukar nauyi, da tsarin feshi a cikin tsarin lalata iskar gas na masana'antar wutar lantarki na iya jure yanayin zafi da iskar gas mai lalata.

Injiniyan ruwa

Yawanci ana amfani da shi a cikin tsarin kula da ruwan teku da kayan aikin jirgin, yana da juriya na musamman ga lalata da kuma lalata damuwa.