Sintering tom qab refilling yuav tsum tuav lub sij hawm ntawm 1-2 teev. Qhov no yog ib qho tseem ceeb kauj ruam los xyuas kom meej txaus recrystallization ntawm magnesium oxide nplej thiab tsim ib tug ntom thiab ruaj khov insulating qauv.
Kev tsim nyog thiab txheej txheem yuav tsum tau tuav
Lub sij hawm tuav: 1-2 teev, ua nyob rau hauv ib qho chaw inert (xws li nitrogen) ntawm 800-1000 degree;
Core functions:
Txhawm rau txhawb cov txheej txheem recrystallization ntawm magnesium oxide hais, ua kom cov txheej txheem ceev;
Txhawm rau tshem tawm cov kev ntxhov siab sab hauv, txhim kho qhov kev tiv thaiv hluav taws xob thiab thermal stability ntawm txheej rwb thaiv tsev;
Txhawm rau tiv thaiv microcracks lossis localized porosity tshwm sim los ntawm qhov kub tsis sib xws.
Tuav yog ib kauj ruam tseem ceeb hauv cov txheej txheem sintering, ncaj qha cuam tshuam rau lub neej thiab kev nyab xeeb ntawm cov cua sov tom qab kho.
Ua kom tiav Sintering txheej txheem ncua sij hawm
|
Theem |
Kub |
Sijhawm |
Kev piav qhia |
|
Cua sov |
Chav ntsuas kub → 800-1000 degree |
1-1.5 hnub |
Cov cua sov sib xws, tsis txhob thermal shock |
|
tuav |
800-1000 degree |
1-2 teev |
Cov theem tseem ceeb: Ua tiav cov nplej recrystallization |
|
Txias |
1000℃→<200℃ |
1-2 teev |
Ntuj cua txias hauv qhov cub, tiv thaiv kev tawg |
Tag nrho cov txheej txheem sintering thiab cua txias yuav tsum ua kom tiav hauv cov plua plav -dawb, av noo- tswj tau (RH Tsawg dua lossis sib npaug li 30%) chav huv huv kom tsis txhob muaj kab mob.
