Mefuta e thata ea alloy, e tsejoang e le "'mè oa indasteri," e phetha karolo ea bohlokoa tlhahisong ea morao-rao.Empa hlobo e bile teng joang, hona e simolohile neng?
(1) Ntlafatso ea Mabotho a Hlahisang e le Motheo oa Sechaba oa Pōpo ea Mould
Tšebeliso ea hlobo e reretsoe ho pheta-pheta lintho tsa sebopeho se tšoanang, ka hona ho matlafatsa tlhahiso le boleng.E mong oa bathehi ba Marxism, Friedrich Engels, rafilosofi oa Lejeremane, rafilosofi, le mofetoheli, o kile a re, “Hang ha ho e-na le tlhokahalo ea theknoloji sechabeng, tlhokahalo ena e tla ntšetsa pele saense pele liunivesithing tse fetang leshome.”Ha sechaba se fihla boemong bo itseng ba tsoelo-pele 'me batho ba e-na le tlhokahalo e kholo ea ho sebelisa lintho tse tšoanang, tse nang le theknoloji le lisebelisoa tse tšoanang, hlobo e ba teng ka tlhaho.
(2) Ho Fumaneha le Tšebeliso ea Koporo e le Motheo oa Boitsebiso bakeng sa Creation ea Hard Alloy Mold.
Litsebi tse ling li lumela hore tsoalo ea 'nete ea hlobo e etsahetse nakong ea Bronze Age, hoo e ka bang lilemo tse 5000 ho isa ho tse 7000 tse fetileng.Mehla ena e ne e le mabapi le tšebeliso ea koporo e le thepa ea mantlha ea ho etsa lisebelisoa tse fapaneng tsa tlhahiso, lisebelisoa tsa letsatsi le letsatsi le libetsa, joalo ka liipone tsa koporo, lipitsa le lisabole.Nakong ena, maemo a motheo a ho theha liforomo tse thata tsa alloy a ne a se a ntse a le teng, ho kenyelletsa le theknoloji ea metallurgical, tlhahiso ea bongata, le lithupelo tsa ho sebetsa.Leha ho le joalo, tlhahiso ea hlobo nakong ena e ne e ntse e sa le monyenyane ebile e le hōle le ho hōla.
Ho fihla ha hlobo ho tšoaile mohato oa bohlokoa historing ea batho, ho fetola mekhoa ea tlhahiso le ho susumelletsa sechaba tsoelo-peleng ea theknoloji le tlhahiso e eketsehileng.Ho theosa le lilemo, tsoelo-pele le ntlafatso ea hlobo e ’nile ea tsoela pele ho susumetsa liindasteri tse sa tšoaneng, e leng se tlatselletsang lefatšeng le tsoelang pele la tlhahiso ea morao-rao.”
Ts'ebetso ea lisebelisoa tsa hlobo e thata ea alloy e kenyelletsa thepa ea mochini, thepa ea mocheso o phahameng, thepa ea holim'a metsi, ts'ebetso ea ts'ebetso, le thepa ea moruo, har'a tse ling.Mefuta e sa tšoaneng ea hlobo e na le maemo a fapaneng a ho sebetsa, e leng se etsang hore ho be le litlhoko tse fapaneng tsa ts'ebetso ea thepa.
1. Bakeng sa hlobo e sebetsang e batang, boima bo phahameng, matla, le ho hanyetsa ho apara hantle ho bohlokoa.Ho feta moo, ba tlameha ho ba le matla a phahameng a khatello, ho tiea ho hotle, le ho hanyetsa mokhathala.
2. Tabeng ea liforomo tse chesang tse sebetsang ka thata, ntle le lisebelisoa tse tloaelehileng tsa mocheso, li hloka ho bonts'a khanyetso e ntle ea kutu, botsitso ba mocheso, ho hanyetsa mocheso o phahameng oa oxidation, le ho hanyetsa mokhathala oa mocheso.Ho boetse hoa hlokahala hore ba be le coefficient e nyenyane ea ho atolosa mocheso le conductivity e ntle ea mocheso.
3. Sebaka se ka holimo sa hlobo se lokela ho ba le boima bo lekaneng ha se ntse se boloka ho tiea le ho hanyetsa ho apara.
Li-molds tse hlahisang khatello li sebetsa tlas'a maemo a thata, li batla hore hlobo e thata ea alloy e be le khanyetso e ntle ea ho apara, ho hanyetsa mocheso, matla a khatello, le ho hanyetsa oxidation, har'a thepa e 'ngoe.
Nako ea poso: Aug-02-2023
