Coated carbide cov cuab yeej muaj qhov zoo hauv qab no:
(1) Cov khoom siv ntawm cov txheej txheej saum npoo muaj qhov hardness siab heev thiab hnav tsis kam. Piv nrog rau cov cemented carbide uas tsis muaj coated, cov coated cemented carbide tso cai rau kev siv cov kev txiav nrawm dua, yog li kev txhim kho kev ua tau zoo, los yog nws tuaj yeem ua rau lub neej zoo ntawm kev txiav ceev.
(2) Cov coefficient ntawm kev sib txhuam ntawm cov khoom coated thiab cov khoom ua tiav yog me me. Piv nrog rau cov tsis muaj coated cemented carbide, txiav quab yuam ntawm cov coated cemented carbide yog txo mus rau ib qho twg, thiab cov txheej txheem saum npoo zoo dua.
(3) Vim muaj kev ua tau zoo, cov riam coated carbide muaj ntau yam zoo dua thiab siv dav dua. Txoj kev siv feem ntau ntawm cemented carbide txheej yog kub tshuaj vapor deposition (HTCVD). Plasma chemical vapor deposition (PCVD) yog siv los pleev xim rau saum npoo ntawm cemented carbide.
Txheej hom ntawm cemented carbide milling cutters:
Peb cov khoom siv feem ntau yog titanium nitride (TiN), titanium carbonitride (TiCN) thiab titanium aluminide (TiAIN).
Titanium nitride txheej tuaj yeem ua rau cov tawv tawv thiab hnav tsis kam ntawm cov cuab yeej nto, txo cov kev sib txhuam coefficient, txo cov cim tsim ntawm ntug, thiab txuas lub neej ntawm lub cuab yeej. Titanium nitride coated cov cuab yeej tsim nyog rau kev ua cov hlau tsis tshua muaj hlau thiab stainless hlau.
Qhov saum npoo ntawm titanium carbonitride txheej yog grey, lub hardness yog siab dua li ntawm titanium nitride txheej, thiab hnav kuj zoo dua. Piv nrog rau titanium nitride txheej, titanium carbonitride txheej cov cuab yeej tuaj yeem ua tiav ntawm kev pub ntau dua thiab txiav ceev (40% thiab 60% siab dua li ntawm titanium nitride txheej, feem), thiab cov khoom tshem tawm cov khoom ua haujlwm siab dua. Titanium carbonitride coated cov cuab yeej tuaj yeem ua ntau yam khoom siv ua haujlwm.
Lub titanium aluminide txheej yog grey los yog dub. Nws yog tsuas yog coated rau saum npoo ntawm cemented carbide cuab tam puag. Nws tseem tuaj yeem ua tiav thaum txiav kub txog 800 ℃. Nws yog tsim rau high-speed qhuav txiav. Thaum txiav qhuav, cov chips hauv cheeb tsam txiav tuaj yeem raug tshem tawm nrog cua compressed. Titanium aluminide yog tsim rau kev ua cov khoom siv tawv tawv xws li cov hlau tawv tawv, titanium alloy, nickel-based alloy, cam khwb cia hlau thiab siab silicon aluminium alloy.
Txheej daim ntawv thov ntawm cemented carbide milling cutter:
Kev nce qib ntawm cov cuab yeej txheej thev naus laus zis kuj tseem cuam tshuam txog kev ua tau zoo ntawm nano-coating. Txheej ntau pua txheej ntawm cov ntaub ntawv nrog lub thickness ntawm ob peb nanometers ntawm lub cuab yeej cuab tam yog hu ua nano-coating. Qhov loj ntawm txhua qhov ntawm cov khoom siv nano-txheej yog qhov me me, yog li cov ciam teb yog qhov ntev heev, uas muaj qhov kub thiab txias hardness. Lub zog thiab tawg toughness.
Vickers hardness ntawm nano-txheej txheej tuaj yeem ncav cuag HV2800 ~ 3000, thiab hnav tsis kam yog txhim kho los ntawm 5% ~ 50% dua li cov ntaub ntawv micron. Raws li cov lus ceeb toom, tam sim no, 62 txheej txheej txheej txheej txheej nrog alternating txheej ntawm titanium carbide thiab titanium carbonitride thiab 400 txheej ntawm TiAlN-TiAlN / Al2O3 nano-coated cov cuab yeej tau tsim.
Piv nrog rau cov txheej txheem nyuaj saum toj no, sulfide (MoS2, WS2) coated ntawm high-speed steel yog hu ua mos txheej, uas yog tsuas yog siv rau kev txiav high-zog aluminium alloys, titanium alloys thiab qee cov hlau tsis tshua muaj.
Yog tias koj muaj kev xav tau, thov tuaj cuag XINFA, peb zoo heev los muab cov cuab yeej loj hauv lub sijhawm luv luv thiab cov cuab yeej kho kom haum rau cov neeg siv khoom.
Post lub sij hawm: Aug-14-2015
