Ukungunda okuqinileyo, okwaziwa ngokuba “ngumama weshishini,” kunendima ebalulekileyo kwimveliso yale mihla.Kodwa kwabakho njani ukungunda, yaye kwabakho nini?
(1) Uphuhliso lweeMveliso zoMveliso njengeSiseko seNtlalo sokudalwa kweMold
Ukusetyenziswa kokubumba kujoliswe ekuphindaphindeni izinto zemilo efanayo, ngaloo ndlela kuphuculwe ukusebenza kakuhle kwemveliso kunye nomgangatho.Omnye wabaseki bobuMarx, uFriedrich Engels, isithandi sobulumko, ingcaphephe nemvukelo yaseJamani, wakha wathi, “Xa kukho imfuneko yobugcisa eluntwini, le mfuneko iya kuqhubela phambili inzululwazi kwiiyunivesithi ezingaphezu kweshumi.”Xa uluntu lufikelela kwinqanaba elithile lophuhliso kwaye abantu banemfuno ebalulekileyo yokusebenzisa izinto ezifanayo, zixhotyiswe ngetekhnoloji ehambelanayo kunye nezixhobo, ukubumba ngokwemvelo kubakho.
(2) UkuFumana kunye nokuSetyenziswa kweCopper njengeSiseko seMpahla seHard Alloy Mold Creation.
Abanye abaphengululi bakholelwa ukuba ukuzalwa kokwenene kokungunda kwenzeka ngexesha leBronze Age, malunga nama-5000 ukuya kuma-7000 eminyaka eyadlulayo.Eli xesha lijikeleze ukusetyenziswa kobhedu njengeyona nto iphambili yokwenza izixhobo ezahlukeneyo zemveliso, izixhobo zemihla ngemihla, kunye nezixhobo ezifana nezipili zobhedu, iimbiza kunye namakrele.Ngeli xesha, iimeko ezisisiseko ekudalweni kwe-alloy molds ezinzima sele zikhona, kubandakanywa iteknoloji ye-metallurgical, imveliso yobuninzi, kunye neeworkshops zokucubungula.Nangona kunjalo, ukuveliswa kokungunda ngeli xesha kwakusekwindawo yokuqala kwaye kusekude nokuba kukhula.
Ukuvela kobumba kuphawule isiganeko esibalulekileyo kwimbali yoluntu, ukuguqula iinkqubo zemveliso kunye nokuqhubela phambili uluntu kwinkqubela phambili yezobuchwepheshe kunye nokwanda kwemveliso.Ukutyhubela iminyaka, ukuphuhliswa nokucokiswa kokungunda kuye kwaqhubeka kubumba imizi-mveliso eyahlukahlukeneyo, nto leyo efak’ isandla kwinkqubela phambili yemveliso yale mihla.”
Ukusebenza kwezixhobo zokubumba i-alloy enzima ibandakanya iipropati zoomatshini, iipropati zobushushu obuphezulu, iipropati zomphezulu, ukuqhubekeka, kunye neepropati zoqoqosho, phakathi kwabanye.Iindidi ezahlukeneyo zokubumba zineemeko zokusebenza ezahlukeneyo, ezibangela iimfuno ezihlukeneyo zokusebenza kwezinto.
1. Kumsebenzi obandayo wokubumba, ubunzima obuphezulu, amandla, kunye nokumelana nokunxiba kakuhle kubalulekile.Ukongeza, kufuneka babe namandla okucinezela okuphezulu, ukuqina okuhle, kunye nokumelana nokudinwa.
2. Kwimeko yokungunda kwe-alloy eshushu esebenza nzima, ngaphandle kweempawu zobushushu eziqhelekileyo, kufuneka zibonise ukuxhathisa kwe-corrosion, ukuzinza kobushushu, ukumelana ne-oxidation ephezulu yobushushu, kunye nokumelana nokudinwa kobushushu.Kukwafuneka ukuba babe ne-coefficient encinci yokwandisa i-thermal kunye ne-conductivity efanelekileyo ye-thermal.
3. Umphezulu womgodi wokungunda kufuneka ube nobunzima obaneleyo ngelixa ugcina ukuqina kunye nokumelana nokunxiba.
Iimolds zokufa koxinzelelo zisebenza phantsi kweemeko ezinzima, zifuna ukubumba okuqinileyo kwealloy ukuba kube nokuxhathisa okugqwesileyo, ukumelana nobushushu, amandla oxinzelelo, kunye nokumelana ne-oxidation, phakathi kwezinye iipropathi.
Ixesha lokuposa: Aug-02-2023
