Yashin guduro shine yashi mai gyare-gyare (ko yashi mai tushe) wanda aka shirya tare da guduro azaman ɗaure. Ana kuma kiran simintin yashi mai rufiharsashi mold simintin gyaran kafasaboda resin yashi mold zai iya zama m a cikin wani karfi harsashi bayan dumama na kawai a dakin da zafin jiki (no-baking ko kai-hardening tsari), wanda ya bambanta da.kore yashi tsarin simintin gyaran kafa. Yin amfani da resin furun a matsayin abin ɗaure don gyare-gyaren yashi babban sauyi ne a tsarin simintin yashi. Tun zuwan wannan hanya, ya ja hankalin masana'antar simintin gyaran kafa kuma ya ci gaba da sauri. Kamar yadda guduro don simintin gyare-gyare (core) yashi mai ɗaure, iri-iri da inganci suna ƙaruwa koyaushe, wanda zai iya biyan buƙatun nau'ikan simintin gyare-gyare.
Saboda yin amfani da yashi guduro, da yawa sabon gyare-gyare (core) matakai sun bayyana daya bayan daya, kamar harsashi core (siffar), zafi core akwatin, sanyi core akwatin, kai-hardening yashi core, da dai sauransu A halin yanzu, da amfani. na guduro yashi ya zama daya daga cikin asali yanayi na taro samar dasimintin gyare-gyare masu inganci. A cikin ayyukan simintin yashi na yanki guda da yawan jama'a, samar da yashi da gyare-gyaren yashi tare da yashin guduro fasaha ce ta gama gari, kuma ci gaban ya kasance cikin sauri a cikin 'yan shekarun nan.
Amfanin Simintin Yashi Mai Rufe:
1. Simintin gyaran gyare-gyaren suna da kyakkyawan inganci da daidaito mai girma;
2. Babu buƙatar bushewa, a can don raguwa da sake zagayowar samarwa;
3. Tsarin simintin gyare-gyaren yashi na guduro yana adana makamashi saboda ƙwayar yashi na guduro (core) yana da ƙarfi mai ƙarfi, kyakkyawan iska mai kyau, ƙananan lahani da ƙananan ƙima;
4. Resin yashi yana da ruwa mai kyau kuma yana da sauƙin haɗawa;
5. Kyakkyawan haɗuwa, mai sauƙin girgizawa da tsaftacewa, yana rage yawan ƙarfin aiki.
Lalacewar Tsarin Simintin Yashin Yashi:
1. Saboda girman girman yashi, siffar, sulfur dioxide abun ciki da mahaɗan alkaline na iya samun tasiri mafi girma akan aikin yashi na resin, abubuwan da ake buƙata don yashi mai yashi sun fi girma;
2. Zazzabi da zafi na yanayin aiki yana da tasiri mafi girma akan saurin ƙarfi da ƙarfin ƙarfin yashin guduro;
3. Idan aka kwatanta da inorganic binders, guduro yashi yana da mafi girma adadin gas;
4. Resin da mai kara kuzari suna da wari mai daɗi, kuma ana buƙatar samun iska mai kyau a cikin bitar;
5. Farashin guduro ya fi koren yashi simintin.
Yashin guduro da aka fi amfani dashi shinefarin guduro mai taurin kai. Furan resin ya dogara ne akan barasa furfuryl kuma ana kiransa da sunan zoben furan na musamman a tsarinsa. Dangane da tsarinsa na asali, akwai furfuryl barasa farin guduro, urea formaldehyde furan resin, phenolic furan resin da formaldehyde furan resin. Ana amfani da resin Furan sau da yawa azaman ɗaure lokacin shirya yashi mai taurin kai a samarwa. Furan resin da aka yi amfani da shi don yashi mai saita kai yana da ɗan ƙaramin abun ciki na furfuryl barasa, ingantaccen aikin ajiyar guduro, ƙarfin zafi mai ƙarfi, amma ƙarin farashi.
Furan guduro-hardening yashi yana nufin nau'in (core) yashi da fur resin daure da wani sinadaran a karkashin mataki na kara kuzari da kuma karfafa a dakin zafin jiki. Furan guduro yashi gaba daya hada da danyen yashi, furan resin, mai kara kuzari, Additives, da dai sauransu. Nagarta da kuma aiki na danye iri daban-daban zai yi babban tasiri ga aikin guduro yashi da kuma ingancin simintin gyaran kafa, don haka yana da matukar muhimmanci. daidai zaži daban-daban albarkatun kasa na guduro yashi.
Lokacin aikawa: Maris-08-2021