Hauv kev tsim khoom, peb feem ntau hnov lo lus "casting" thiab "forging". Txawm hais tias tsuas muaj ib lo lus sib txawv, lawv txawv heev hauv cov txheej txheem tsim khoom. Yog li, thaum casting ntsib forging, dab tsi ntawm "txias" nws yuav sib tsoo?
Cov txheej txheem ntawm casting tau nyob ib ncig ntawm 6, 000 xyoo. Casting yog tsim ib zaug. Tag nrho cov txheej txheem yog smelt hlau rau hauv molten hlau uas ua tau raws li cov qauv, thiab tom qab ntawd muab pov rau hauv cov kab noj hniav uas tsim nyog rau cov duab ntawm ib feem. Tom qab nws txias thiab solidified, txoj kev tau txais qhov chaw los yog blanks. Qhov ntau yam castings yog lub ntiajteb txawj nqus casting thiab tsis tshua muaj siab casting. Lub ntiajteb txawj nqus casting yog txheej txheem ntawm pouring kua alloy rau hauv pwm rau kev kho mob khaub thuas. Txoj kev casting yog qhov yooj yim thiab tus nqi qis; tsis tshua muaj siab casting yog nias cov kua alloy rau hauv cov pwm uas tsis tshua muaj siab. Piv nrog rau lub ntiajteb txawj nqus casting, muaj tsawg pores thiab ntau dua ntom. High kev nyab xeeb yam thiab lub zog. Casting tuaj yeem tsim qhov chaw nrog cov duab nyuaj thiab muaj ntau yam kev siv, xws li los ntawm ob peb grams mus rau pua pua tons.
Forging yog ib qho kev ua thiab kev tsim cov txheej txheem uas siv lub tshuab forging los siv lub siab rau cov hlau dawb paug rau plastically deform nws kom tau txais ib qho forging nrog qee yam khoom siv, qee yam duab thiab qhov loj me. Los ntawm mechanically deforming lub rhuab hlau nyob rau hauv nruj tswj tej yam kev mob, forging yuav tshem tawm qhov tsis xws luag xws li xoob castings tsim los ntawm cov hlau thaum lub sij hawm smelting txheej txheem thiab txhim khu kev ncaj ncees ntawm cov khoom; forging txhim kho cov ductility ntawm kev ntxhib los mos los ntawm optimizing microstructure. Ua kom qaug zog tiv thaiv thiab toughness ntawm castings; forging khaws cia cov hlau ua tiav, thiab cov khoom siv ntawm forgings tau txhim kho. Cov khoom forged muaj cov khoom siv lead ua me me thiab muaj zog dua, uas tuaj yeem tiv taus qhov tseem ceeb nrog kev thauj khoom siab thiab ua haujlwm hnyav.
Cov saum toj no yog qhov txawv ntawm casting thiab forging uas lub foundry tau txheeb tawm rau koj. Kuv vam tias nws tuaj yeem pab koj! tos ntsoov yuav ntsib koj txhua lub sij hawm!
