Cov cuab yeej carbide coated muaj cov txiaj ntsig zoo li nram no:
(1) Cov khoom siv txheej ntawm txheej saum npoo muaj qhov nyuaj heev thiab tsis kam hnav. Piv nrog rau cov cemented carbide uas tsis tau coated, cov cemented carbide uas tau coated tso cai rau kev siv qhov ceev txiav siab dua, yog li txhim kho kev ua haujlwm zoo, lossis Nws tuaj yeem ua rau lub neej ntawm cov cuab yeej ntev dua ntawm tib qhov ceev txiav.
(2) Tus coefficient ntawm kev sib txhuam ntawm cov khoom coated thiab cov khoom ua tiav yog me me. Piv nrog rau cov cemented carbide tsis coated, lub zog txiav ntawm cov coated cemented carbide raug txo qis rau qee qhov, thiab qhov zoo ntawm cov khoom ua tiav zoo dua.
(3) Vim muaj kev ua tau zoo heev, cov riam carbide coated muaj kev siv tau zoo dua thiab siv tau dav dua. Txoj kev siv cemented carbide coating feem ntau yog high temperature chemical vapor deposition (HTCVD). Plasma chemical vapor deposition (PCVD) yog siv los txheej cov cemented carbide saum npoo.
Cov txheej txheem ntawm cov cemented carbide milling cutters:
Peb cov ntaub ntawv txheej txheem feem ntau yog titanium nitride (TiN), titanium carbonitride (TiCN) thiab titanium aluminide (TiAIN).
Cov txheej titanium nitride tuaj yeem ua rau qhov nyuaj thiab tiv taus kev hnav ntawm qhov chaw ntawm cov cuab yeej, txo qhov sib txhuam coefficient, txo qhov tsim ntawm cov npoo, thiab ntev lub neej ntawm cov cuab yeej. Cov cuab yeej txheej titanium nitride yog tsim rau kev ua cov hlau tsis tshua muaj hlau thiab cov hlau tsis xeb.
Qhov saum npoo ntawm cov txheej titanium carbonitride yog xim grey, qhov nyuaj dua li cov txheej titanium nitride, thiab qhov hnav tsis kam zoo dua. Piv nrog cov txheej titanium nitride, cov cuab yeej txheej titanium carbonitride tuaj yeem ua tiav ntawm qhov ceev pub thiab txiav ceev dua (40% thiab 60% siab dua li cov txheej titanium nitride, feem), thiab qhov nrawm tshem tawm cov khoom ua haujlwm siab dua. Cov cuab yeej txheej titanium carbonitride tuaj yeem ua tiav ntau yam khoom ua haujlwm.
Cov txheej titanium aluminide yog xim grey lossis dub. Nws feem ntau yog coated rau ntawm qhov chaw ntawm lub hauv paus cemented carbide. Nws tseem tuaj yeem ua tiav thaum qhov kub txiav ncav cuag 800 ℃. Nws yog qhov tsim nyog rau kev txiav qhuav ceev. Thaum txiav qhuav, cov chips hauv thaj chaw txiav tuaj yeem tshem tawm nrog cua compressed. Titanium aluminide yog qhov tsim nyog rau kev ua cov ntaub ntawv brittle xws li hlau hardened, titanium alloy, nickel-based alloy, cast iron thiab high silicon aluminium alloy.
Kev siv cov cemented carbide milling cutter:
Kev nce qib ntawm cov cuab yeej txheej txheem kuj pom tseeb hauv qhov ua tau zoo ntawm nano-txheej. Txheej ntau pua txheej ntawm cov ntaub ntawv nrog tuab ntawm ntau nanometers ntawm cov khoom siv hauv paus cuab yeej hu ua nano-txheej. Qhov loj ntawm txhua lub khoom me me ntawm cov khoom siv nano-txheej yog me heev, yog li cov ciam teb noob ntev heev, uas muaj qhov nyuaj siab kub. , Lub zog thiab tawg toughness.
Qhov Vickers hardness ntawm nano-txheej tuaj yeem ncav cuag HV2800 ~ 3000, thiab qhov hnav tsis kam tau zoo dua los ntawm 5% ~ 50% dua li ntawm cov ntaub ntawv micron. Raws li cov lus ceeb toom, tam sim no, 62 txheej ntawm cov cuab yeej txheej nrog cov txheej txheej hloov pauv ntawm titanium carbide thiab titanium carbonitride thiab 400 txheej ntawm TiAlN-TiAlN / Al2O3 nano-txheej cuab yeej tau tsim.
Piv nrog rau cov txheej tawv saum toj no, sulfide (MoS2, WS2) coated rau ntawm cov hlau ceev ceev hu ua txheej mos, uas feem ntau yog siv rau kev txiav cov hlau txhuas muaj zog siab, cov hlau titanium thiab qee cov hlau tsis tshua muaj.
Yog tias koj muaj kev xav tau, thov tuaj hu rau MSK, peb ua tib zoo muab cov cuab yeej loj me me hauv lub sijhawm luv luv thiab cov cuab yeej tsim kho rau cov neeg siv khoom.
Lub sijhawm tshaj tawm: Cuaj hlis-22-2021
