Simintin gyare-gyaren yashi mai rufaffiyar simintin gyare-gyaren da aka yi da baƙin ƙarfe mai launin toka, simintin simintin ƙarfe da simintin ƙarfe a cikin kamfanin simintin gyaran kafa na kasar Sin.
Lokacinharsashi mold simintin gyaran kafa, Da farko mafarin yana buƙatar yin alamu bisa ga buƙatun abokin ciniki da zane-zane, da la'akari da izinin jefawa. Kafin yin gyare-gyaren simintin gyaran kafa da ainihin, an rufe yashin da aka lulluɓe da ingantaccen fim ɗin guduro a saman ɓangarorin yashi. Yashi mai rufi kuma ana kiransa yashi harsashi (core). Tsarin fasaha shine don haɗawa da bishiyar phenolic foda mai zafin jiki da ɗanyen yashi da ƙarfi lokacin zafi. An haɓaka shi zuwa yashi mai rufi ta hanyar amfani da resin thermoplastic phenolic tare da latent curing wakili (kamar urotropine) da mai mai (kamar calcium stearate) ta hanyar wani tsari na sutura. Lokacin da yashi mai rufi ya yi zafi, resin da aka lulluɓe a saman ɓangarorin yashin ya narke. Ƙarƙashin aikin ƙungiyar methylene da Maltropine ya rushe, narkakken guduro yana canzawa da sauri daga tsarin layi zuwa tsarin jikin da ba a iya amfani da shi ta yadda yashi mai rufi ya ƙarfafa kuma ya samu. Bugu da ƙari ga nau'in yashi mai rufi na gabaɗaya bushe, akwai kuma yashi mai jika da danko.
Tsarin simintin gyare-gyaren Shell yana da halaye masu zuwa
1) Yana da ƙarfin ƙarfin da ya dace. Zai iya saduwa da buƙatun don babban yashi mai ƙarfi harsashi, yashi mai zafi mai matsakaici mai ƙarfi, da yashi mai ƙarancin ƙarfe mara ƙarfi.
2) Kyakkyawan ruwa mai kyau, kyakkyawan gyare-gyare na ginshiƙan yashi da bayyanannun shaci, wanda zai iya samar da mafi yawan hadaddun yashi, irin su jaket ɗin ruwan yashi irin su kawunan silinda da jikin injin.
3) Ingancin saman yashi core yana da kyau, m kuma ba sako-sako ba. Ko da ƙasa ko ƙasa ba a yi amfani da su ba, ana iya samun ingantaccen ingancin simintin. Matsakaicin girman simintin gyare-gyare na iya isa CT7-CT8, kuma ƙarancin saman Ra na iya kaiwa 6.3-12.5μm.
4) Kyakkyawan haɗin gwiwa, wanda ke da kyau don zubar da tsaftacewa da inganta aikin samfurin
5) Cibiyar yashi ba ta da sauƙi don shayar da danshi, kuma ƙarfin ajiyar lokaci mai tsawo ba shi da sauƙi don ragewa, wanda ya dace da ajiya, sufuri da amfani.
Ayyukan masana'anta na yumbu mai rufi (core) yin don yin simintin gyare-gyaren harsashi:
1. Ainihin tsari na masana'anta mai rufi yashi mold (core) shi ne: jefa ko busa yashi → ɓawon burodi → yashi sallama → Harden → core (mold) da sauransu.
1) Juya ko hura yashi. Wato ana zuba yashin da aka lullube akan kwandon harsashi ko kuma a hura shi a cikin babban akwatin don kera harsashi ko harsashi.
2) Encrustation. Ana sarrafa kauri daga cikin harsashi ta hanyar daidaita yanayin zafi da riƙe lokaci.
3) Fitar yashi. Karkatar da mold da ainihin akwatin don sanya yashi mai rufaffiyar da ba a gyara ba ya faɗo daga zafin saman harsashi, sannan a tattara shi don sake amfani da shi. Domin samun sauƙi don cire yashi mai rufi wanda ba a narkewa ba, idan ya cancanta, ana iya amfani da hanyar inji na girgiza baya da baya.
4) Tauraruwa. A cikin yanayin zafi, don yin kauri na harsashi ya zama daidai, sanya shi tuntuɓar saman harsashi mai zafi a cikin wani ɗan lokaci don ƙara taurare.
5) Dauki ainihin. Ɗauki ƙaƙƙarfan siffar harsashi da ainihin harsashi daga cikin kwalin da ainihin akwatin.
