Sintering teeb meem ntawm ramming khoom rau nruab nrab zaus rauv

Qhov zoo ntawm cov khoom siv ramming ntawm qhov nruab nrab zaus qhov cub muaj qhov cuam tshuam ncaj qha rau kev ua haujlwm smelting. Lub tshuab hluav taws xob zoo hauv phab ntsa tuaj yeem smelted 600 zaug. Qhov phem tshaj plaws yog ntau tshaj 100 qhov cua sov, thiab txawm tias kaum ob lub cua sov yuav tsum tau rov ua dua. Nquag knotting ntawm lub cub tawg phab ntsa hauv ob sab phlu tsis tsuas yog cuam tshuam rau kev tsim khoom, tab sis kuj nkim nyiaj ntawm knotting tus nqi. Cov hauv qab no yog txoj kev raug ntawm knotting los ntawm cov chaw tsim khoom ntawm cov ntaub ntawv qhuav-tying. …

1. Lub luag hauj lwm ntawm qhov kub thiab txias sensor

Hauv kev ua haujlwm sintering, tag nrho cov ntsuas kub yog qhov tseem ceeb heev. Txhawm rau kom nkag siab meej txog qhov ntsuas kub hauv qhov cub, peb yuav txuas 2-3 qhov ntsuas kub ntsuas hauv qab thiab nruab nrab ua ntej, thiab ua tiav peb cov txheej txheem sintering raws li qhov ntsuas kub.

2. Qhov sib ntxiv ntawm thawj pawg ntawm cov nqi rau hauv ob sab phlu ntawm lub cub tawg phab ntsa rau sintering

Rau thawj pawg them nqi ua ntej sintering txheej txheem, peb yuav tsum muab qhov tseem ceeb rau cov tshuaj muaj pes tsawg leeg ntawm nws cov khoom, vim hais tias cov khoom tseem ceeb ntawm peb quartz xuab zeb rauv phab ntsa hauv ob sab phlu yog silicon oxide, thiab los ntawm kev tsom xam ntawm thermodynamics, C thiab Si yog A. Qhov sib npaug sib npaug yog xav tau ntawm qhov kub thiab txias. Thaum cov hlau molten kub siab dua thiab cov ntsiab lus C kuj siab, Si cov ntsiab lus ntawm cov hlau molten yuav tsum muaj ntau dua, vim tias peb xav tau 1580-1600 degrees thaum lub sij hawm sintering txheej txheem ntawm lub cub tawg hauv ob sab phlu Thaum lub sij hawm tuav lub sij hawm, Yog hais tias cov hlau molten muaj cov ntsiab lus C siab thiab cov ntsiab lus Si tsis ncav cuag qhov sib npaug ntawm qhov yuav tsum tau, cov hlau molten yuav ua rau kom tshem tawm cov silicon los ntawm cov phab ntsa hauv lub qhov cub kom sib npaug qhov sib npaug, uas ua rau cov phab ntsa hauv lub qhov cub tawg ntxov ntxov thiab thinning cuam tshuam. nws lub neej kev pab. Tsis tas li ntawd, yog tias cov ntsiab lus ntawm C thiab Si hauv peb thawj cov khoom siv ramming tsawg, qhov kub siab dua yuav ua rau cov hlau oxide thiab manganese oxide nce ntxiv, thiab cov oxides no yuav cuam tshuam nrog peb cov phab ntsa ntawm lub cub tawg. Lub silicon dioxide nyob rau saum npoo reacts los tsim hlau silicate thiab manganese silicate, thiab cov ntsiab lus melting ntawm ob yam khoom no yog qis dua 1350 ℃, thiab tseem ua rau peb cov phab ntsa hauv lub cub tawg thinner ua ntej thiab txo cov kev pab cuam lub neej. …

Noj rau hauv tus account ob lub ntsiab lus saum toj no, lwm qhov yog xav txog qhov ceev ntawm cov khoom siv ramming ntxiv. Tag nrho cov txheej txheem melting ntawm peb lub qhov cub hluav taws xob yog qhov hluav taws xob hluav taws xob hloov mus rau hauv lub zog hluav taws xob los ntawm cov kauj, thiab tom qab ntawd cov hlau nplaum ua rau lub zog hlau hloov mus rau hauv hluav taws xob, thiab tom qab ntawd los ntawm hluav taws xob mus rau hluav taws xob hluav taws xob. Kev hloov pauv ntawm lub zog hluav taws xob, vim hais tias lub crucible yog hlau pwm crucible thaum lub cub tawg yog qhov cub, yog tias qhov chaw pub mis hauv lub cub tawg yog xoob, qhov crucible yuav dhau-react rau cov hlau nplaum, ua rau cov cua kub ceev heev, Ua rau deformation thiab bulging sab hauv (ib feem tseem cuam tshuam los ntawm cov tuab ntawm cov pwm crucible. Lub sijhawm no, cov quartz xuab zeb hauv ob sab phlu ntawm lub qhov cub tseem tsis tau sintered thiab solidified, thiab cov khoom siv refractory yuav ua rau deformed qhov chaw ntawm lub cub tawg. pwm, ua rau txo qis ntawm qhov ntom ntawm cov khoom siv hluav taws xob hauv lub tshuab hluav taws xob thiab cuam tshuam rau nws lub neej kev pabcuam.