Shell Mold na Simintin Ƙarfe na Ductile Cast

China OEM al'ada spheroidal graphite jefa baƙin ƙarfe sashi ta harsashi mold kayayyakin daInjin CNC, zafi magani da surface jiyya.

Shell gyare-gyaren simintin gyaran kafatsari kuma ana kiransa tsarin simintin simintin yashi wanda aka riga aka rufawa, simintin gyare-gyaren harsashi mai zafi ko tsarin simintin simintin. Babban kayan gyare-gyaren shine yashin resin phenolic wanda aka riga aka yi masa rufi, wanda yafi tsada fiye da koren yashi da yashin guduro mai fure. Bugu da ƙari, wannan yashi ba za a iya sake yin amfani da shi ba.

Furan resin resin kansa tsarin simintin yashi (tsari na nobake) yana amfani da yashi mai rufi na fure don samar da simintin simintin. Bayan an haxa yashi na asali (ko yashi da aka dawo da shi), ruwa mai buɗe wuta da mai kara kuzari daidai gwargwado, sannan a cika su a cikin ainihin akwatin (ko akwatin yashi), sannan a matsa shi don ya taurare ya zama mold ko gyaggyarawa a cikin babban akwatin (ko yashi). akwatin) a dakin da zafin jiki. Sa'an nan kuma aka samar da simintin gyare-gyare ko simintin simintin, wanda ake kira akwatin gyare-gyaren sanyi mai ƙarfi (core), ko hanyar tauraruwar kai (core).

Saboda ana yin ƙura a cikin ɗaki kuma ba buƙatar zafi ba, ana kiran simintin yashi mai taurin kai kuma ana kiran tsarin simintin gasa. Hanyar taurin kai za a iya raba shi zuwa guduro furan mai acid-catalyzed da phenolic guduro yashi hanya mai taurin kai, hanyar tauraruwar yashi na urethane da kuma hanyar taurin kai mai phenolic monoester.

A matsayin yashi mai ɗaure mai sanyi mai ɗaure kai, yashi farin resin shi ne yashi na farko kuma a halin yanzu ana amfani da yashi mai ɗaure mai ɗaure da yawa a cikin ginin Sinanci. Adadin resin da aka ƙara a cikin yashi gyare-gyare shine gabaɗaya 0.7% zuwa 1.0%, kuma adadin ƙarar guduro a cikin yashi gabaɗaya shine 0.9% zuwa 1.1%. Abubuwan da ke cikin aldehyde kyauta a cikin resin furan bai kai 0.3% ba, kuma wasu masana'antu sun ragu zuwa ƙasa da 0.1%. A cikin wuraren da aka gano a kasar Sin, yashi mai taurin kai ya kai matakin kasa da kasa ba tare da la'akari da yadda ake samar da simintin gyaran fuska ba.

Iron simintin gyare-gyare, wanda kuma ake kira nodular cast iron, spheriodal graphite cast iron ko kawai SG iron a takaice, yana wakiltar rukunin simintin ƙarfe. Nodular simintin ƙarfe yana samun graphite nodular ta hanyar spheroidization da inoculation magani, wanda yadda ya kamata inganta inji Properties na simintin ƙarfe, musamman roba da taurin, don samun mafi girma ƙarfi fiye da carbon karfe.

Simintin gyare-gyaren ƙarfe yana da mafi kyawun aikin ɗaukar girgiza fiye da carbon karfe, yayin da simintin ƙarfe na carbon yana da mafi kyawun walƙiya. Kuma zuwa wani matsayi, ductile iorn simintin gyare-gyare na iya samun wasu wasan kwaikwayon na juriya da lalacewa da tsatsa. Don haka ana iya amfani da simintin ƙarfe don wasu gidajen famfo ko tsarin samar da ruwa. Koyaya, har yanzu muna buƙatar yin taka tsantsan don kare su daga sawa da tsatsa.

Ƙarfin ƙarfe ba abu ɗaya ba ne amma yana cikin rukuni na kayan da za a iya samar da su don samun nau'o'in kaddarorin ta hanyar sarrafa microstructure. Halayen ma'anar gama gari na wannan rukuni na kayan shine siffar graphite. A cikin baƙin ƙarfe ductile, graphite yana cikin nau'i na nodules maimakon flakes kamar yadda yake a cikin baƙin ƙarfe. Siffa mai kaifi na flakes na graphite yana haifar da maƙasudin maida hankali a cikin matrix na ƙarfe da siffar zagaye na nodules ƙasa da haka, don haka hana ƙirƙirar fashe da samar da ingantaccen ductility wanda ke ba da gami da sunansa. Don haka gabaɗaya magana, idan baƙin ƙarfe na ductile zai iya biyan buƙatun ku, baƙin ƙarfe na ductile zai iya zama zaɓinku na farko, maimakon ƙarfe na carbon don simintin ku.

Fa'idodin Furan Resin Rufaffen Yashi Mai Taurin Kai:
1) Haɓaka daidaiton girma na simintin gyare-gyare da ƙaƙƙarfan saman.
2) Ƙaƙƙarfan yashi (core) yashi baya buƙatar bushewa, wanda zai iya ceton makamashi, kuma ana iya amfani da katako mai tsada ko akwatunan filastik da samfuri.
3) Yashi mai gyare-gyaren kansa yana da sauƙi don haɗawa da rugujewa, mai sauƙin tsaftace simintin gyare-gyare, kuma ana iya sake yin amfani da tsohon yashi da sake amfani da shi, wanda ke rage yawan ƙarfin aiki na core yin, yin samfuri, yashi fadowa, tsaftacewa da sauran hanyoyin sadarwa, da kuma yana da sauƙin gane injina ko sarrafa kansa.
4) Yawan juzu'i na guduro a cikin yashi shine kawai 0.8% ~ 2.0%, kuma cikakken farashin albarkatun ƙasa yana da ƙasa.

Saboda hanyar taurin kai yana da fa'idodi na musamman da aka ambata a sama, hanyar tauraruwar kai ba wai kawai ana amfani da ita ba ne don yin ginshiƙi, har ma ana amfani da ita don yin gyare-gyare. Ya dace musamman don samar da yanki guda ɗaya da ƙaramin tsari, kuma yana iya samar da baƙin ƙarfe, simintin ƙarfe da simintin ƙarfe mara ƙarfe. Wasu masana'antun kasar Sin sun maye gurbin busassun yashi na yumbu, da yashi na siminti, da wani bangare na maye gurbin yashi na gilashin ruwa.