Kuboola mchenga ndi ntchito yomwe imagwiritsa ntchito mpweya wopanikizika ngati mphamvu yokankhira zinthu zonyamulira pamwamba pa chinthu chogwirira ntchito kuti zigwiritsidwe ntchito. Izi ndi zomwe zimatchedwa kuboola mchenga, zomwe nthawi zambiri timazitcha kuboola mchenga. Chifukwa m'masiku oyambirira a kuboola, mchenga unali chinthu chokhacho chomwe chingagwiritsidwe ntchito, kotero kuboola mchenga kunkatchedwa kuboola mchenga panthawiyo komanso kwa nthawi yayitali pambuyo pake. Kuboola mchenga kungapangitse kuti pamwamba poyeretsedwa pakhale ukhondo wofunikira komanso kuuma kwake, ndikuwonjezera kumamatira kwa chophimbacho pansi. Kaya chophimbacho chili chabwino bwanji, sichingalumikizidwe pamwamba pa chinthu chogwirira ntchito popanda chithandizo cha nthawi yayitali pamwamba. Cholinga cha kukonza pamwamba ndikuyeretsa pamwamba ndikupanga kuuma komwe kumafunika kuti "kutseke" chophimbacho pamwamba. Pambuyo poti chophimbacho chaboola mchenga chaphimbidwa ndi chophimba cha mafakitale chogwira ntchito bwino, nthawi yogwira ntchito ya chophimbacho ndi yayitali nthawi 3.5 kuposa nthawi yogwira ntchito ya chophimba chomwecho pamwamba chomwe chimakonzedwa ndi njira zina. Ubwino wina wa kuphulika kwa mchenga (kuwombera ndi mfuti) ndi wakuti kuuma kwa pamwamba kumatha kudziwikiratu malinga ndi zofunikira ndipo kungapezeke panthawi yoyeretsa.
Mwachitsanzo, frosting ndi njira yomwebotolo lagalasi lodzikongoletseraKumakhala kosalala ndipo kumakhala kosalala. Kuwala kumawunikira pamwamba kuti apange kuwunikira kofalikira. Mu frosting ya mankhwala, galasi limaphwanyidwa mwamakina kapena kuphwanyidwa ndi emery, mchenga wa silika, ufa wa makangaza ndi zinthu zina zopukutira kuti apange malo owuma mofanana, kapena galasi ndi zinthu zina zimatha kuchiritsidwa ndi yankho la hydrofluoric acid kuti apange galasi lowuma.
Kuphimba pamwamba pa galasi ndi kupukuta mchenga zimagwiritsidwa ntchito kuphimba pamwamba pa galasi, kuti kuwala kufalikira mofanana akadutsa mumthunzi wa nyali. N'kovuta kwa ogwiritsa ntchito wamba kusiyanitsa pakati pa matekinoloje awiriwa. Zotsatirazi zikufotokoza njira zopangira matekinoloje awiriwa ndi momwe angawadziwire.
1. Njira yopangira chisanu
Kuzizira kumatanthauza kumiza galasi mu madzi okonzedwa a asidi (kapena kugwiritsa ntchito phala la asidi), kuwononga pamwamba pa galasi ndi asidi wamphamvu, ndipo hydrogen fluoride ammonia mu yankho la asidi wamphamvu imapangitsa pamwamba pa galasi kupanga makhiristo. Chifukwa chake, ngati njira yozizira yachitika bwino, pamwamba pa galasi lozizira ndi losalala kwambiri, ndipo makhiristo omwazikana amapanga chimfine. Ngati pamwamba pake pali powuma pang'ono, izi zikusonyeza kuti asidiyo ikuwononga kwambiri galasi, kapena ena mwa iwo alibe makhiristo. Khalidwe la njirayi ndikuwoneka kwa makhiristo owala pamwamba pa galasi omwe amapangidwa pansi pa mikhalidwe yovuta. Chifukwa chachikulu ndichakuti hydrogen fluoride ammonia yatsala pang'ono kugwiritsidwa ntchito. Pofuna kukwaniritsa izi, opanga ambiri ayesa kangapo ndi kufufuza, koma sanathe kuthana ndi vutoli.
2Ukadaulo wophulitsa mchenga
Imagwiritsa ntchito tinthu ta mchenga tomwe timatulutsidwa ndi mfuti yopopera mwachangu kwambiri kuti igunde pamwamba pa galasi kuti ipange malo osafanana bwino, motero imapangitsa kuti kuwala kufalikira, ndikupanga mdima pamene kuwala kukudutsa. Pamwamba pa zinthu zagalasi zomwe zimapangidwa ndi njira yophulitsira mchenga ndi wovuta. Chifukwa chakuti pamwamba pa galasi lawonongeka, limawoneka ngati galasi loyera malinga ndi kuwala kwa galasi loyambirira lowonekera bwino.
Njira ziwirizi ndi zosiyana kwambiri. Magalasi oundana ndi okwera mtengo kuposa magalasi oundana, ndipo zotsatira zake zimadalira kwambiri zosowa za ogwiritsa ntchito. Magalasi ena apadera sali oyenera kuundana. Poganizira za kufunafuna kwabwino, matte ayenera kusankhidwa. Njira youndana ndi mchenga ikhoza kuchitika m'mafakitale ambiri, koma njira youndana ndi mchenga si yosavuta kuchita bwino.
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Nthawi yotumizira: Ogasiti-25-2021

