Kafin yin ƙira da ƙwanƙolin, yashi mai rufi an rufe shi da fim mai ƙanshi mai tsabta a saman ƙurar yashi. Dakwasfa mold simintinan haɓaka shi cikin yashi mai rufi ta amfani da resin thermoplastic phenolic resin tare da wakili mai warkarwa (kamar urotropine) da man shafawa (kamar su calcium stearate) ta wani aikin sutura. Lokacin da yashi mai rufi ya yi zafi, fiska mai rufi a saman ƙurar yashi tana narkewa. A karkashin aikin kungiyar methylene wanda Maltropine ya lalata, narkakken zafin da yake saurin canzawa daga sifa mai tsari zuwa tsarin jikin mutum wanda ba zai yiwu ba domin yashi yashi ya zama ya karu kuma ya samu. Baya ga babban bushewar ɗamarar dusar ƙanƙara mai narkewa, akwai kuma yashi mai ruɓaɓɓe da viscous.
▶ Rufi yashi zaben 'yan wasa yana da halaye masu zuwa
1) Yana da ƙarfin ƙarfin dacewa. Zai iya biyan buƙatun don babban yashi harsashi mai yashi, yashi mai matsakaicin ƙarfi mai zafi, da yashi mara ƙarfi mai ƙarfi mara ƙarfi.
2) Kyakkyawan ruwa, kyakyawan tsarin rairayin yashi da bayyanannen shaci, wanda zai iya samar da mafi hadaddun yashi, kamar su jaket ruwan yadin kamar su silinda kai da jikin injina.
3) Ingancin farfajiyar yashin yana da kyau, karami kuma ba sako-sako ba ne. Ko da an yi amfani da lessasa ko babu rufi, ana iya samun ingancin juzu'in simintin gyaran sama. Girman daidaito na simintin gyare-gyare na iya isa CT7-CT8, kuma ƙarancin yanayin Ra zai iya isa 6.3-12.5μm.
4) Kyakkyawan durkushewa, wanda ke da fa'ida don jefa tsabtatawa da inganta aikin samfuran
5) Gishirin yashi ba shi da sauƙi don ɗaukar danshi, kuma ƙarfin ajiyar lokaci mai sauƙi ba shi da sauƙi don ragewa, wanda ke dacewa da adanawa, safara da amfani
Processes Manufacturing tafiyar matakai na mai rufi yashi mold (core) yin for harsashi gyare-gyaren simintin gyaran kafa:
1. Ainihin tsari na kera mai rufin yashi (asali) shine: juyewa ko busa yashi → ɓawon ruwa charge fitowar yashi den taurare → core (mould) da sauransu.
1) Juya ko busa yashi. Wato, an zubo da yashi mai laushi a jikin kwasfa ko an busa cikin babban akwatin don ƙirƙirar ƙwarjin ko ƙwarjin ɗin.
2) Amincewa. Ana sarrafa kaurin Layer ɗin harsashi ta hanyar daidaita yanayin zafin jiki da riƙe lokaci.
3) Ruwan yashi. Ilt lanƙwasa kayan kwalliyar da babban akwatin don sanya yashi mai ruɓaɓɓe ya faɗi daga farfajiyar harsashi mai zafi, kuma tattara shi don sake amfani dashi. Don sauƙaƙa cire cirewar yashi mara narkewa, idan ya cancanta, za a iya amfani da hanyar inji ta girgiza gaba da gaba.
4) eningarfafawa A cikin yanayin dumama, don yin kaurin ƙwarjin ya zama daidai, sanya shi ya haɗu da saman harsashin mai zafi a cikin wani lokaci don ƙarin tauri.
5) theauki gindi. Auki siffar harsashi mai ƙarfi da ƙwarjin harsashi daga cikin sifa da babban akwatin.
▶ Shell Molding Gyare Raw Materials:
• Steelarfe Carbon Karfe: Lowananan Carbon Karfe, Matsakaicin Carbon Karfe da Babban Carbon Karfe daga AISI 1020 zuwa AISI 1060.
• Cast Karfe Alloys: 20CrMnTi, 20SiMn, 30SiMn, 30CrMo, 35CrMo, 35SiMn, 35CrMnSi, 40Mn, 40Cr, 42Cr, 42CrMo ... da dai sauransu akan bukata.
• Fitar Bakin Karfe: AISI 304, AISI 304L, AISI 316, AISI 316L da sauran darajar karafa.
• Fitar Alloys na Aluminium.
• Brass & Copper.
• Sauran Kayan aiki da Ka'idoji akan buƙata
Llarfin llarfin Shell:
• Girman Max: 1,000 mm × 800 mm × 500 mm
• Girman Nauyin: 0.5 kg - 100 kg
• Karfin Shekaru: Tan 2,000
• Haƙuri: Akan Neman.
