Nyob rau hauv precision casting txheej txheem, tshwj xeeb tshaj yog nyob rau hauv" equiaxed" txheej txheem, hlau kub yog qhov tseem ceeb tshaj plaws. Yog li ntawd, nws kuj muaj kev cuam tshuam ncaj qha rau ntau yam zoo. Yog tias qhov ntsuas thiab tswj tsis raug, qhov sib txawv ntawm qhov kub ntawm cov hlau yuav cuam tshuam qhov loj ntawm cov tiav castings, grain loj, porosity (nto thiab sab hauv), mechanical zog, khoom zoo (xws li nyiam kub tearing), tag nrho ntawm nyias-walled qhov chaw. , lwm.
Yog li ntawd, kev txhim kho kev ntsuas thiab kev tswj ntawm cov hlau kub yuav txhim kho qhov zoo thiab kev tsim khoom, txo cov nqi tu thiab kev ua haujlwm, txo cov nqi kuaj thiab cov nqi them nqi kho mob.
