Vim li cas cov hmoov txhaj tshuaj molding txheej txheem ntxiv cov yas rau cov hmoov hlau?
Cov txheej txheem kev txhaj tshuaj molding muaj ob ntu: ceramic txhaj tshuaj molding thiab hlau txhaj tshuaj molding. Nws yog ib qho tshiab nyob ze -net molding tshuab tsim los ntawm kev sib txuas cov tsoos hmoov metallurgy tshuab nrog yas txhaj tshuaj molding tshuab. Lub hom phiaj ntawm kev tsim yog ua tiav los ntawm kev txhaj tshuaj molding, thiab thaum kawg hmoov metallurgy cov khoom tau txais los ntawm degreasing thiab sintering.
Organic binders ua lub luag haujlwm tseem ceeb hauv cov txheej txheem kev txhaj tshuaj molding, uas cuam tshuam ncaj qha rau kev sib xyaw, kev txhaj tshuaj molding, degreasing thiab lwm yam txheej txheem hauv cov hmoov txhaj tshuaj molding txheej txheem. Lub luag haujlwm ntawm cov organic binder yog sib txuas cov hlau hmoov cov khoom, kom cov khoom sib tov muaj fluidity thiab lubrication thaum rhuab hauv lub thoob ntawm lub tshuab txhaj tshuaj, thiab nws yog cov cab kuj uas ua rau cov hmoov ntws. Kev xaiv Binder yog tus yuam sij rau tag nrho cov hmoov txhaj tshuaj molding txheej txheem, thiab nws muaj kev cuam tshuam zoo rau cov khoom ntim hauv cov embryo ntsuab, lub zog ntsuab embryo, deformation ntawm ntsuab embryo thaum degreasing, thiab qhov tseeb qhov tseeb. Nyob rau hauv cov txheej txheem txhaj tshuaj molding, qhov sib tov yog rhuab rau hauv cov khoom siv yas nrog cov khoom siv rheological hauv lub thoob ntawm lub tshuab txhaj tshuaj, thiab txhaj rau hauv pwm raws li qhov tsim nyog txhaj tshuaj kom tsim ib qho dawb paug. Yog li ntawd cov khoom shrinks uniformly thaum lub sij hawm sintering txheej txheem.
