Cov cuab yeej xaiv cov khoom siv
Nov 10, 2024| Cov khoom siv los ua cov cuab yeej yuav tsum muaj qhov kub thiab txias hardness thiab hnav tsis kam, tsim nyog khoov lub zog, cuam tshuam toughness thiab tshuaj inertness, zoo processability (txiav, forging thiab tshav kub kho, thiab lwm yam), thiab tsis yooj yim rau deform. Feem ntau, thaum cov khoom hardness siab, hnav kuj yog siab; Thaum lub zog dabtsi yog khoov siab, qhov cuam tshuam toughness kuj siab.
Txawm li cas los xij, qhov siab dua cov khoom siv hardness, qhov qis dua nws lub zog khoov thiab cuam tshuam toughness. High-speed steel tseem yog cov cuab yeej siv dav tshaj plaws hauv lub sijhawm niaj hnub no vim nws lub zog khoov siab thiab cuam tshuam rau lub zog, nrog rau kev ua haujlwm zoo, ua raws li cemented carbide. Polycrystalline cubic boron nitride yog tsim rau kev txiav high-hardness hardened steel thiab nyuaj cam khwb cia hlau, thiab lwm yam.; polycrystalline pob zeb diamond yog tsim rau kev txiav cov hlau tsis muaj hlau, nrog rau cov hlau, yas thiab fiberglass, thiab lwm yam.; carbon tool steel thiab alloy tool steel tsuas yog siv los ua cov cuab yeej xws li cov ntaub ntawv, tuag thiab cov kais dej.
Cemented carbide indexable inserts tau coated nrog titanium carbide, titanium nitride, aluminium oxide nyuaj txheej los yog composite nyuaj txheej los ntawm tshuaj vapor deposition. Txoj kev txhim kho lub cev vapor deposition tuaj yeem siv tsis yog rau cov cuab yeej carbide nkaus xwb, tab sis kuj rau cov cuab yeej siv hlau ceev, xws li xyaum, hobs, kais dej thiab milling cutters. Cov txheej tawv tawv ua raws li kev thaiv kev cuam tshuam rau cov tshuaj diffusion thiab tshav kub conduction, ua rau qeeb tus nqi ntawm cov cuab yeej thaum txiav. Lub neej ntawm cov hniav coated yog li ntawm 1 mus rau 3 zaug ntev dua li ntawm qhov tsis muaj coated.