Lub khob cawv cawv yog cov khoom ntim khoom siv feem ntau, thiab qee zaum qhov smoothness ntawm iav cawv fwj yog cuam tshuam los ntawm qee yam hauv lub sijhawm tsim cov khob cawv. Yog li, yuav ua li cas los tsim ib lub raj mis nrog lub ntsej muag smoother thaum tsim cov iav fwj?
Cov khoom siv pwm tsis zoo rau lub khob cawv cawv. Hauv kev tsim cov iav fwj, yog tias cov khoom ntawm cov pwm pib lossis pwm tsis zoo thiab qhov ntom ntom tsis txaus, cov pwm yuav oxidize sai heev tom qab kub kub, yog li ntawd cov pwm yuav tsim cov pits me me. yuav yooj yim ua rau pwm tom qab molding. Qhov saum npoo ntawm lub khob cawv lub raj mis tsis du, uas yuav cuam tshuam rau qhov smoothness ntawm lub khob cawv txiv hmab.
Qhov ceev ntawm lub tshuab gob tsis sib xws. Hauv kev tsim cov iav fwj, yog tias lub tshuab cua tsis hloov kho kom zoo, qhov kub ntawm lub khob lub raj mis pib pwm thiab pwm yuav tsis sib haum, thiab nws yog ib qho yooj yim los ua kom txias me ntsis ntawm lub raj mis lub cev thaum lub sij hawm tsim cov iav cawv. fwj, uas muaj kev cuam tshuam ncaj qha rau qhov smoothness. Yog li ntawd, thaum tsim cov iav cawv fwj, qhov ceev ntawm lub tshuab gob yuav tsum tau tswj kom tsim nyog.