Daim ntawv thov thiab cov yam ntxwv ntawm graphite sagger crucible

Daim ntawv thov thiab cov yam ntxwv ntawm graphite sagger crucible

Crucible siv tau rau kev ua kom sov ntawm ntau lub siv lead ua. Crucible tuaj yeem muab faib uagraphite cruciblethiablub pob zeb quartz. Graphite crucible muaj cov thermal conductivity zoo thiab tiv taus kub siab; Hauv daim ntawv thov kub siab, qhov coefficient ntawm thermal expansion yog me me heev. Nws muaj zog tiv taus kub thiab txias heev. Nws tiv taus cov kua qaub thiab alkali muaj zog. Nws tsim nyog rau kev ua kom sov ntau yam kua; Ntxiv rau chemistry, graphite crucibles siv dav hauv metallurgy, casting, machinery, chemical industry thiab lwm lub chaw haujlwm; Lub graphite crucible yog ua los ntawm cov khoom siv graphite ntuj, uas tswj tau qhov qub zoo heev hluav taws kub ntawm graphite. Lub graphite crucible feem ntau yog siv rau kev smelting cov hlau tsis yog ferrous xws li tooj liab, txhuas thiab alloy. Muaj ntau yam ntxwv ntawm graphite crucible nws tus kheej. Ntawm no peb yuav teev ib lossis ob rau koj.
1. Muaj kuab paug tsawg dua, vim tias lub zog huv xws li roj av lossis roj liquefied siv tau ua roj thiab muaj kuab paug tsawg dua.
2. Kev siv hluav taws xob tsawg, vim tias lub graphite crucible muaj kev npaj tsim nyog, cov qauv siab heev thiab cov ntaub ntawv tshiab. Tom qab sim, kev siv hluav taws xob qis dua li ntawm tib hom cub tawg.
Lub cub tawg ua kom muaj zog siab purity graphite crucible feem ntau yog siv rau kev smelting kub, nyiaj thiab cov hlau tsis tshua muaj.Cov khoom siv ua los ntawm av nplaumfeem ntau yog siv rau hauv chaw soj nstuam thiab kev sib xyaw ntawm platinum, kub thiab cov hlau tsis tshua muaj. Puas siv tau graphite crucible ntawm qhov kub siab ntawm 2000 ℃ nyob rau hauv qhov xwm txheej ntawm huab cua? Nws puas yuav lwj thiab oxidize hnyav? Nws puas yuav carburize cov hlau molten? Qhov tseem ceeb tshaj plaws yog tias carburizing yog qhov tuag taus. Nyob rau hauv qhov xwm txheej ib txwm, nws tuaj yeem ncav cuag 2000 degrees hauv huab cua, tab sis nws yuav oxidize sai. Qhov teeb meem ntawm cov hlau carburization yuav tsum muaj. Tam sim no muaj ib qho tshwj xeeb anti carburizing txheej ntawm kev ua lag luam, uas tau hais tias muaj cov txiaj ntsig zoo.