Kev xaiv cov khoom pwm tsim nyog yuav tsum muaj kev xav txog tsib yam tseem ceeb: ntim ntau lawm, cov khoom siv, cov khoom yuav tsum tau, pwm qauv, thiab kev tswj tus nqi. Kev txiav txim siab zoo yuav tsum tau ua raws li cov txheej txheem tshwj xeeb, tsis yog tsuas yog nrhiav kev ua haujlwm siab - cov ntaub ntawv ua tau zoo. Cov hauv qab no yog cov ncauj lus kom ntxaws tsom xam thiab cov lus qhia:
Kev xaiv cov khoom raws li qhov ntim ntau lawm
Loj- nplai ntau lawm (ntau tshaj ib lab daim): Ua ntej hnav siab- tiv taus, ntev- cov ntaub ntawv lub neej, xws li siab - carbon siab-chromium steel (Cr12MoV) lossis cemented carbide (YG15), kom ntseeg tau tias pwm lub neej sib tw ua haujlwm ntau lawm.
Me me mus rau nruab nrab batch los yog pilots ntau lawm (txog mus rau kaum tawm txhiab daim): Tsawg dua - nqi ua ntej -hardened steel (xws li P20), carbon cuab tam steel (T10A), los yog txhuas alloys yuav siv tau los txo qhov pib peev.
Kev xaiv cov khoom siv raws li cov yam ntxwv ntawm cov yas / cov khoom siv
Cov iav fiber ntau reinforced yas (xws li PA + GF, PBT + GF): Kev hnav hnyav yuav tsum muaj siab -hardness, siab - hnav- cov ntaub ntawv tiv taus, xws li 718H thiab NAK80.
Corrosive plastics (piv txwv li, PVC, POM): Cov no tso cov roj corrosive heev xws li HCl thiab HF thaum rhuab. Corrosion-cov hlau tiv taus (xws li S136, 2083) yuav tsum tau siv los tiv thaiv kab noj hniav tsis ua haujlwm.
Ordinary plastics (piv txwv li, PP, PE): Thaum qhov kev xav tau ntawm qhov chaw tiav tsis siab, tus nqi -zoo ua ntej- cov hlau tawv (P20) txaus.
Kev xaiv cov khoom raws li cov khoom Precision thiab qhov yuav tsum tau ua
High-gloss, pob tshab, precision qhov chaw (piv txwv li, optical lo ntsiab muag, khoom siv kho mob): Yuav tsum tau polishing zoo heev thiab qhov seem stability. Daim iav- tiav stainless hlau (S136, NAK80) tau pom zoo, ua tiav qhov ultra- du nto nrog Ra Less dua lossis sib npaug rau 0.012μm.
Cov yam ntxwv zoo ib yam (piv txwv li, vaj tse, brackets): Qhov yuav tsum tau ua kom tiav yog tsawg; Cov khoom siv nyiaj txiag xws li P20 thiab 45 steel tuaj yeem siv tau.
