Dab tsi yog qhov tseem ceeb tshaj plaws uas cuam tshuam qhov kev ua haujlwm ntawm cov ntaub ntawv?
1. Tshuaj muaj pes tsawg leeg: qhov yooj yim dua cov hlau txua ntawm cov hlau, qhov nyuaj nyuaj nws yuav ua rau txheej txheem. Thaum cov ntsiab lus qis dua, qhov kev txiav cov hlau txiav yuav txo.
2. Cov qauv ntawm cov hlau: ntau txoj kev tuaj yeem cuam tshuam cov hlau ua, xws li forging, casting, extrusion, dov thiab machined, forging qhov chaw thiab casting muaj cov chaw nyuaj heev yuav tsum tau machined.
3. Hardness: hardness yog ib qho tseem ceeb ntawm kev cuam tshuam cov hlau txiav kev ua tiav. Txoj kev cai yog qhov nyuaj nyuab nyuab, qhov nyuaj nyuaj nws yuav ua rau cov txheej txheem. Qhov siab ceev hlau (HSS) yuav siv rau cov ntaub ntawv ua tiav nrog rau qhov siab tshaj plaws ntawm 330-400 HB.High ceev hlau + TiN txheej, mus txog 45 HRC khoom; Rau cov ntaub ntawv uas muaj qhov nyuaj ntawm 65-70 HRC, tawv alloys, ceramics, metal ceramics, thiab cubic boron nitride (CBN) yuav tsum tau siv.
4. Tsis yog xuas hlau ua ke: feem ntau, nws muaj kev phom sij rau lub cuab yeej lub neej.Piv txwv li, Al2O3 (alumina), uas yog ib tug dawb huv ceramic, muaj ib tug muaj zog abrasion.
5. Kev nyuab siab dua: qhov kev ntxhov siab nyob ntev tuaj yeem ua rau cov teeb meem ua rau hlau txiav, thiab feem ntau nws raug nquahu kom tswj kev nyuaj siab tom qab ua haujlwm tsis zoo.