Lalata Resistant Bakin Karfe Samfurin

Simintin simintin gyare-gyare, wanda kuma ake kira simintin bakin karfe, yana nufin simintin simintin gyare-gyare, wanda ke nuna ƙarfin juriya ga lalatawa a cikin nau'ikan ƙayyadaddun ƙayyadaddun kafofin watsa labaru na musamman ko yanayin da lalata da abubuwan inji ke zama tare. 

Bakin karfe yana da ƙaramin abun ciki na chromium na 10.5%, yana mai da shi mafi juriya ga gurbataccen muhallin ruwa da iskar oxygen. Yana da juriya sosai kuma yana jure lalacewa, yana ba da ingantacciyar injin aiki, kuma sananne ne don kyawun kyawun sa. Simintin saka hannun jari na bakin karfe yana da "lalata" lokacin da aka yi amfani da shi a cikin mahalli na ruwa da tururi da ke ƙasa da 1200°F (650°C) da kuma "mai jure zafi" lokacin amfani da sama da wannan zafin jiki.

Austenitic bakin karfeyana nufin bakin karfe tare da tsarin austenitic a zafin jiki. Austenitic bakin karfe yana daya daga cikin nau'o'i biyar na bakin karfe ta tsarin crystalline (tare da ferritic, martensitic, duplex da hazo mai taurare). A wasu yankuna, bakin karfe na austenite kuma ana kiransa jerin bakin karfe 300. Lokacin da karfe ya ƙunshi kusan 18% Cr, 8% -25% Ni, da kusan 0.1% C, yana da tsayayyen tsarin austenite. Bakin karfe na Austenitic chromium-nickel ya hada da sanannen karfen 18Cr-8Ni da babban silsilar karfen Cr-Ni da aka kirkira ta hanyar kara abun ciki na Cr da Ni tare da kara Mo, Cu, Si, Nb, Ti da sauran abubuwa akan wannan. Austenitic bakin karfe ba Magnetic ba ne kuma yana da babban tauri da filastik, amma ƙarfinsa kaɗan ne, kuma ba shi yiwuwa a ƙarfafa shi ta hanyar canjin lokaci. Ana iya ƙarfafa shi kawai ta hanyar aikin sanyi. Idan an ƙara abubuwa kamar S, Ca, Se, Te, yana da kyawawan kaddarorin injina.

Austenitic bakin karfe kuma na iya samar da simintin gyare-gyare. Domin inganta ruwan narkakkar karfe da inganta aikin simintin gyare-gyare, ya kamata a daidaita abun da ke ciki na simintin ƙarfe ta hanyar ƙara abun ciki na siliki, faɗaɗa kewayon chromium da nickel abun ciki, da ƙara iyakar ƙazanta na sulfur na ƙazanta.

Austenitic bakin karfe ya zama m-maganin bi da kafin amfani, don haka kamar yadda ya kara da m bayani na daban-daban precipitates kamar carbides a cikin karfe a cikin austenite matrix, yayin da kuma homogenizing da tsarin da kuma kawar da danniya, don haka kamar yadda don tabbatar da kyau kwarai Lala juriya da kuma inji Properties. Madaidaicin tsarin maganin maganin shine sanyaya ruwa bayan dumama a 1050～1150 ℃ ( sassan bakin ciki kuma ana iya sanyaya iska). Maganin zafin jiki na maganin ya dogara da digiri na alloying na karfe: Molybdenum-free ko low-molybdenum karfe maki ya zama ƙasa (≤1100 ℃), kuma mafi girma alloyed maki kamar 00Cr20Ni18Mo-6CuN, 00Cr25Ni22Mo2N, da dai sauransu ya zama mafi girma ( 1080 ~ 1150) ℃).

Austenitic 304 bakin karfe farantin karfe, wanda aka ce yana kawo tsatsa mai ƙarfi da juriya na lalata, kuma yana da kyakkyawan filastik da tauri, wanda ya dace da tambari da ƙira. Tare da nauyin 7.93 g / cm3, 304 bakin karfe shine bakin karfe na kowa, wanda kuma aka sani da 18/8 bakin karfe a cikin masana'antu. Kayan sa na karfe suna da juriya ga yanayin zafi kuma suna da kyawawan kaddarorin sarrafawa, don haka ana amfani da su sosai a masana'antu da masana'antar kayan ado da masana'antar abinci da magunguna.

Kayayyakin ƙarfe da ba na ƙarfe ba don Zuba Jari, Tsarin Simintin Kakin Kakin da Ya ɓace:

• • Iron Grey: HT150, HT200, HT250, HT300, HT350; GJL-100, GJL-150, GJL-200, GJL-250, GJL-300, GJL-350; GG10~GG40.
• • Iron Ductile ko Nodular Iron: GGG40, GGG50, GGG60, GGG70, GGG80; GJS-400-18, GJS-40-15, GJS-450-10, GJS-500-7, GJS-600-3, GJS-700-2, GJS-800-2; QT400-18, QT450-10, QT500-7, QT600-3, QT700-2, QT800-2;
• • Karfe Karfe: AISI 1020 - AISI 1060, C30, C40, C45.
• • Karfe Alloys: ZG20SiMn, ZG30SiMn, ZG30CrMo, ZG35CrMo, ZG35SiMn, ZG35CrMnSi, ZG40Mn, ZG40Cr, ZG42Cr, ZG42CrMo ... da dai sauransu a kan bukatar.
• • Bakin Karfe: AISI 304, AISI 304L, AISI 316, AISI 316L, 1.4401, 1.4301, 1.4305, 1.4307, 1.4404, 1.4571 da sauran bakin karfe.
• • Brass, Red Copper, Bronze ko wasu ƙarfe na ƙarfe na tushen Copper: ZCuZn39Pb3, ZCuZn39Pb2, ZCuZn38Mn2Pb2, ZCuZn40Pb2, ZCuZn16Si4
• • Sauran Kayayyaki gwargwadon buƙatunku na musamman ko bisa ga ASTM, SAE, AISI, ACI, DIN, EN, ISO, da ma'aunin GB

Matakan da ke cikin tsarin ko simintin kakin zuma da aka rasa sune:

• • Ƙirƙirar ƙirar kakin zuma ko kwafi
• • Sanya ƙirar kakin zuma
• • Saka hannun jari na kakin zuma
• • Cire samfurin kakin zuma ta hanyar kona shi (cikin tanderun ko a cikin ruwan zafi) don ƙirƙirar mold.
• • Ƙaddamar da narkakkar ƙarfe a zuba a cikin ƙura
• • sanyaya da ƙarfi
• • Cire sprue daga simintin gyaran kafa
• • Kammala da goge ƙãre simintin saka hannun jari