Cov khoom xaiv ntawm lub raj mis cap pwm muaj qhov cuam tshuam tseem ceeb rau nws qhov kev ua tau zoo thiab kav ntev. Cov khoom siv pwm zoo tshaj plaws yuav tsum muaj lub hardness siab, muaj lub zog siab, hnav zoo heev thiab thermal ruaj khov. Cov hauv qab no yog ntau lub raj mis cap pwm thiab lawv cov yam ntxwv:
High-zoo alloy steel: zoo alloy steel muaj siab tawv thiab hnav tau zoo heev thaum lub raj mis tau ua haujlwm thiab ua kom muaj lub raj mis tau ua haujlwm ntev ntawm cov pwm. Tsis tas li ntawd, nws muaj qhov ruaj khov zoo thiab tsis yooj yim rau deform, uas yog qhov tsim nyog rau kev tsim cov raj mis coulds nrog cov kev xav tau siab.
Stainless hlau: Qhov saum npoo ntawm stainless hlau pwm yog tus, uas yog conducive rau kev tsim cov raj mis caps nrog cov chaw siab zoo. Nws muaj cov zoo corrosion tsis kam thiab tuaj yeem tiv thaiv kev yaig ntawm ntau yam tshuaj. Nws yog qhov haum rau kev lag luam nrog kev ua kom muaj kev nyiam huv xws li cov khoom noj thiab tshuaj. Txawm hais tias Stainless hlau tsis yog li nrov li alloy steel nyob rau hauv lub raj mis cap pwm, nws yog qhov xav tau nyob rau qee lub sijhawm.
Aluminium: Aluminium moulds muaj tus nqi qis thiab haum rau me me thiab nruab nrab-qhov nruab nrab me me. Aluminium yog yooj yim rau cov txheej txheem rau hauv ntau cov duab thiab yog lub teeb nyob rau hauv qhov hnyav, ua kom yooj yim ua haujlwm thiab thauj. Hauv qee zaus qhov twg ruaj khov thiab precision tsis tas yuav tsum tau, txhuas pwm siv vim lawv cov txiaj ntsig tau them nqi thiab ua kom yooj yim.
Advanced Yas Pwm Steel: cov ntaub ntawv no, xws li 2083, 2346, thiab lwm yam kev ua haujlwm loj thiab ntau yam kev ua haujlwm ntev thiab ntau lawm kev ua haujlwm ntawm cov pwm.
