Taw qhia
Cov iav fwj tau dav siv los ntim cov kua thiab tau siv rau ntau pua xyoo. Txawm li cas los xij, ntau tus neeg xav tias yog vim li cas lub khob iav yog boiled ua ntej muab ntim. Boiling iav fwj yog txheej txheem ua ntej uas yog qhov tseem ceeb hauv kev tsim cov iav fwj. Hauv tsab xov xwm no, peb yuav tshawb xyuas cov laj thawj vim li cas cov iav fwj yog boiled thiab nws qhov tseem ceeb hauv kev tsim cov iav.
Keeb kwm ntawm iav raj mis ntau lawm
Cov iav fwj hnub rov qab mus rau lub sijhawm Egyptian thaum ub, qhov chaw uas lawv tau siv los khaws cov tshuaj tsw qab thiab roj. Kev tsim cov iav fwj tau hloov zuj zus mus rau lub sijhawm, nrog cov neeg Loos yog thawj zaug tsim cov iav fwj rau ntawm kev lag luam. Thaum lub sij hawm 17th thiab 18th centuries, zus tau tej cov iav fwj yog mechanized, ua rau kom muaj peev xwm ntau lawm ntawm iav fwj.
Cov txheej txheem iav raj mis ntau lawm
Kev tsim cov iav fwj muaj ob peb kauj ruam, suav nrog iav melting, shaping, txias, thiab tiav. Cov txheej txheem iav melting muaj cua sov cov ntaub ntawv xws li silica xuab zeb, soda tshauv, thiab limestone nyob rau hauv lub cub tawg kom txog rau thaum lawv yaj, ua molten iav. Cov iav molten yog ces zoo li tus iav fwj siv lub tshuab thiab tshuab los yog xovxwm thiab tshuab.
Lub raj mis tom qab ntawd muab tso rau hauv qhov cub annealing kom txo cov kev ntxhov siab hauv lub khob thiab txhim kho nws lub zog. Cov txheej txheem annealing suav nrog cua sov lub raj mis rau qhov kub thiab txias thiab maj mam txias rau lub sijhawm teem, feem ntau yog ob peb teev.
Vim li cas Koj Boil iav fwj?
Boiling iav fwj yog ib kauj ruam tseem ceeb hauv kev tsim lub raj mis. Lub hom phiaj ntawm boiling yog tshem tawm tej impurities los yog residual teeb meem nyob rau hauv lub fwj, xws li roj, plua plav, thiab lwm yam kab mob. Boiling lub fwj kuj pab kom tsis muaj menyuam, ua rau lawv muaj kev nyab xeeb siv los khaws cov kua.
Cov txheej txheem Boiling
Cov txheej txheem boiling yog muab cov iav fwj tso rau hauv ib lub thawv ntim nrog dej kub. Cov dej kub yuav tsum yog kwv yees li 100 degrees Celsius, thiab cov fwj yuav tsum tau muab tso rau hauv dej li 15 mus rau 20 feeb. Tom qab boiling, cov fwj raug tshem tawm los ntawm dej thiab sab laug kom txias nyob rau hauv ib qho chaw huv si.
Qhov tseem ceeb ntawm Boiling iav fwj
Boiling iav fwj yog qhov tseem ceeb rau kev ua kom zoo thiab kev nyab xeeb ntawm cov khoom khaws cia hauv lawv. Cov kab mob hauv lub fwj tuaj yeem cuam tshuam qhov saj thiab zoo ntawm cov kua uas khaws cia rau hauv lawv. Boiling pab tshem tawm cov impurities thiab sterilize lub fwj, tiv thaiv kab mob loj hlob tuaj yeem ua rau lwj.
Tsis tas li ntawd, boiling kuj pab ntxiv dag zog rau cov iav fwj, ua rau lawv tsis tshua muaj kev tawg lossis tawg thaum siv. Cov txheej txheem iav annealing kuj pab txhim kho tag nrho lub zog thiab kav ntev ntawm lub raj mis.
Xaus
Boiling iav fwj yog ib kauj ruam tseem ceeb hauv kev tsim cov iav fwj. Nws pab tshem tawm tej impurities, sterilize lub fwj, thiab txhim kho lawv tag nrho lub zog thiab durability. Cov iav fwj tau siv rau ntau pua xyoo thiab tau hloov zuj zus mus dhau sijhawm los ua ib qho ntawm cov khoom ntim khoom siv dav tshaj plaws rau cov kua. Los ntawm boiling iav fwj, tuam ntxhab tuaj yeem ua kom zoo thiab kev nyab xeeb ntawm cov khoom uas khaws cia rau hauv lawv, muab cov neeg siv khoom zoo thiab muaj kev nyab xeeb.