A cikin tsarin samarwa, kamfanoni masu fa'ida ba makawa za su gamu da lahani na simintin gyare-gyare kamar su raguwa, kumfa, da rarrabuwa, wanda ke haifar da ƙarancin samar da simintin. Sake narkewa da samar da kayayyaki kuma za su fuskanci yawan ma'aikata da wutar lantarki. Yadda za a rage lahanin simintin gyare-gyare matsala ce da ƙwararrun ƙwararrun masana'antu ke damuwa da ita.
Dangane da batun rage simintin gyaran kafa, John Campbell, farfesa daga Jami'ar Birmingham da ke Burtaniya, yana da fahimta ta musamman na rage lahani. Tun a shekarar 2001, Li Dianzhong, wani mai bincike a cibiyar nazarin karafa, kwalejin kimiyyar kasar Sin, ya gudanar da ayyukan kwaikwayo da tsara tsarin sarrafa zafi a karkashin jagorancin Farfesa John Campbell. A yau, Intercontinental Media ta tattara jerin manyan ƙa'idodi guda goma don rage lahani na simintin gyare-gyaren da babban masanin wasan kwaikwayo na duniya John Campbell ya gabatar.
1.Good simintin fara da high quality-smelting
Da zarar ka fara zubar da simintin gyare-gyare, dole ne ka fara shirya, duba da kuma sarrafa tsarin narkewa. Idan an buƙata, ana iya ɗaukar ma'auni mafi ƙasƙanci. Koyaya, mafi kyawun zaɓi shine shiryawa da ɗaukar tsarin narkewa kusa da lahani.
2.Avoid m inclusions a kan free ruwa surface
Wannan yana buƙatar nisantar saurin gudu mai yawa akan saman gaban ruwa kyauta (meniscus). Ga yawancin karafa, ana sarrafa matsakaicin saurin gudu a 0.5m/s. Don rufaffiyar tsarin simintin gyare-gyare ko sassa masu sirara, za a ƙara iyakar saurin gudu yadda ya kamata. Wannan buƙatu kuma yana nufin cewa faɗuwar tsayin narkakkar karfe ba zai iya wuce mahimmin ƙimar tsayin “tsayayyen digo” ba.
3.Avoid laminar inclusions na saman condensate bawo a cikin narkakkar karfe
Wannan yana buƙatar cewa yayin aiwatar da aikin gabaɗaya, babu ƙarshen ƙarshen narkakkar ɗin da ya kamata ya daina gudana da wuri. Meniscus na ƙarfe da aka narkar da shi a farkon matakin cika dole ne ya kasance mai motsi kuma ba zai shafe shi ta hanyar kauri na ƙwanƙolin bawo, wanda zai zama wani ɓangare na simintin gyaran kafa. Don cimma wannan sakamako, ana iya tsara ƙarshen narkakken ƙarfe na gaba don faɗaɗa ci gaba. A aikace, kawai zubar da "hawa" na kasa zai iya samun ci gaba mai girma. (Misali, a cikin simintin nauyi, yana fara gudana sama daga ƙasan mai gudu madaidaiciya). Nufin wannan:
Tsarin zubewar ƙasa;
Babu "ƙasa" faɗuwa ko zamewar karfe;
Babu manyan kwararan ruwa a kwance;
Babu tsayawar gaba-gaba na karfen saboda zubewa ko kwararowar ruwa.
4.A guji shiga cikin iska (ƙarar kumfa)
Kauce wa tarkon iska a cikin tsarin zubar da ruwa daga haifar da kumfa don shiga cikin rami. Ana iya samun wannan ta:
Haƙiƙa zayyana ƙoƙon da aka tako;
Haƙiƙa zayyana sprue don cikewa da sauri;
Hankali ta amfani da "dam";
Ka guji yin amfani da "rijiyar" ko wani tsarin zubawa na budewa;
Yin amfani da ƙaramin mai gudu na ƙetare ko yin amfani da tace yumbu kusa da haɗin kai tsakanin sprue da mai tseren giciye;
Yin amfani da na'urar cirewa;
Tsarin zuba ba ya katsewa.
5.Kaucewa yashi core pores
Guji kumfan iska da tushen yashi ko yashi ke haifarwa daga shiga narkakkar da ke cikin rami. Tushen yashi dole ne ya kasance yana da ƙarancin abun cikin iska, ko kuma a yi amfani da shaye-shaye mai dacewa don hana haɓakar ramukan yashi. Ba za a iya amfani da mannen yashi na tushen yumbu ko mannen gyaran gyare-gyare ba sai dai idan sun bushe gaba ɗaya.
6.A guji raguwar kogo
Saboda convection da rashin kwanciyar hankali gradients, ba zai yuwu a cimma ci gaban raguwar ciyarwa don kauri da manyan simintin ƙetaren giciye ba. Sabili da haka, dole ne a bi duk ka'idodin ciyarwa don tabbatar da kyakkyawan ƙirar ciyarwa, kuma dole ne a yi amfani da fasahar kwaikwayo ta kwamfuta don tabbatarwa da ainihin samfuran simintin gyare-gyare. Sarrafa matakin walƙiya a haɗin tsakanin ƙirar yashi da ainihin yashi; sarrafa kauri na simintin gyaran kafa (idan akwai); sarrafa gami da simintin zafin jiki.
7.A guji convection
Haɗarin haɗuwa suna da alaƙa da lokacin ƙarfafawa. Simintin gyare-gyaren simintin bango da kauri ba ya shafar haɗarin haɗuwa. Don matsakaicin kauri simintin gyare-gyare: rage haɗarin convection ta hanyar simintin simintin ko tsari;
Ka guji ciyarwa sama;
Juyawa yayi bayan ya zuba.
8.Rage wariya
Hana rarrabuwa da sarrafa shi a cikin daidaitaccen kewayon, ko yankin iyakacin abun da abokin ciniki ya yarda. Idan zai yiwu, yi ƙoƙarin guje wa rabuwa ta tashar.
9.Rage yawan damuwa
Bayan maganin maganin haske mai haske, kada ku kashe da ruwa (ruwa ko ruwan zafi). Idan danniya na simintin bai yi girma ba, yi amfani da matsakaicin kashe polymer ko kashe iska ta tilas.
10.An ba da abubuwan tunani
Dole ne a ba da duk simintin gyare-gyaren madaidaicin maki don dubawa da sarrafawa.
Lokacin aikawa: Mayu-30-2024
