Kev sib piv ntawm High-Speed ​​Steel thiab Cemented Carbide Materials

High-speed steel (HSS) thiab cemented carbide yog ob qho khoom siv dav siv hauv ntau qhov kev lag luam, tshwj xeeb hauv kev txiav cov cuab yeej thiab kev siv tshuab. Ob qho khoom siv nthuav tawm cov khoom tshwj xeeb uas ua rau lawv haum rau cov hom phiaj tshwj xeeb. Nyob rau hauv tsab xov xwm no, peb yuav sib piv thiab sib piv cov yam ntxwv ntawm high-speed steel thiab cemented carbide, tsom rau lawv cov muaj pes tsawg leeg, hardness, toughness, hnav tsis kam, thiab tag nrho cov kev ua tau zoo.

Kev sib xyaw:

High-Speed ​​Steel: High-speed steel yog ib qho alloy uas feem ntau yog hlau, carbon, cobalt, tungsten, molybdenum, thiab vanadium. Cov alloying ntsiab no txhim khu cov khoom hardness, hnav tsis kam, thiab siab kub zog.

Cemented Carbide: Cemented carbide, tseem hu ua tungsten carbide, muaj ib theem nyuaj carbide (feem ntau tungsten carbide) embedded nyob rau hauv ib tug binder hlau xws li cobalt los yog npib tsib xee. Qhov kev sib xyaw ua ke no muab cov khoom siv tshwj xeeb hardness thiab hnav tsis kam.

Hardness:

High-Speed ​​Steel: HSS feem ntau muaj hardness xws li 55 txog 70 HRC (Rockwell C nplai). Qib ntawm hardness no tso cai rau HSS cov cuab yeej txiav tau zoo los ntawm ntau yam khoom, suav nrog hlau, stainless hlau, thiab cam khwb cia hlau.

Cemented Carbide: Cemented carbide muaj npe nrov rau nws qhov hnyav hnyav, feem ntau ncav cuag 80 txog 95 HRA (Rockwell A scale). Lub siab hardness ua rau cemented carbide cov cuab yeej zoo tagnrho rau kev siv cov khoom tawv xws li titanium alloys, hardened steels, thiab composites.

Toughness:

High-Speed ​​Steel: HSS nthuav tawm zoo toughness thiab tuaj yeem tiv taus qhov cuam tshuam thiab poob siab, ua rau nws tsim nyog rau kev cuam tshuam kev txiav thiab kev ua haujlwm hnyav. Nws toughness kuj pab txhawb regrinding thiab reshaping ntawm cov cuab yeej.

Cemented Carbide: Thaum cemented carbide nyuaj heev, nws kuj yog nkig piv rau HSS. Nws yuav nti los yog tawg nyob rau hauv hnyav hnyav los yog poob siab loads. Txawm li cas los xij, cov qib carbide niaj hnub suav nrog kev txhim kho toughness thiab tuaj yeem tiv taus qhov cuam tshuam rau lub teeb.

Hnav Resistance:

High-Speed ​​Steel: HSS muaj kev hnav zoo, tshwj xeeb tshaj yog thaum siv ntawm kev txiav ceev. Txawm li cas los xij, ntawm kev txiav ceev lossis thaum siv cov khoom siv nrog cov abrasiveness siab, hnav tsis kam ntawm HSS yuav tsis txaus.

Cemented Carbide: Cemented carbide muaj npe nrov rau nws qhov tshwj xeeb hnav tsis kam txawm nyob rau hauv kev nyuaj machining tej yam kev mob. Lub zog carbide theem muab kev tiv thaiv zoo rau kev hnav, tso cai rau cov cuab yeej carbide kom tswj tau lawv cov kev txiav kom ntev dua.

Kev ua tau zoo:

High-Speed ​​Steel: HSS cov cuab yeej ua tau zoo nyob rau hauv ntau yam ntawm cov ntawv txiav vim lawv ntau yam, toughness, thiab txheeb ze yooj yim ntawm sharpening. Lawv tsim nyog rau kev ua haujlwm dav dav ntawm lub hom phiaj machining thiab raug nqi zoo piv rau cemented carbide.

Cemented Carbide: Cemented carbide cov cuab yeej siv dav siv rau kev ua haujlwm siab thiab ua haujlwm siab. Lawv ua tau zoo tshwj xeeb hauv kev thov cov ntawv thov nrog kev txiav nrawm, txuas ntxiv lub neej ntawm cov cuab yeej, thiab nce kev tsim khoom. Txawm li cas los xij, lawv feem ntau kim dua li cov cuab yeej HSS.

Xaus:

High-speed steel thiab cemented carbide yog ob qho tib si cov ntaub ntawv tseem ceeb hauv kev lag luam txiav, txhua tus muaj nws tus kheej lub zog thiab kev txwv. High-speed steel muaj zoo toughness, versatility, thiab nqi-zoo, ua rau nws haum rau ntau yam kev siv machining. Ntawm qhov tod tes, cemented carbide excels hardness, hnav tsis kam, thiab high-temperature stability, ua rau nws xaiv rau machining hardened steels thiab lwm yam khoom nyuaj.

Nkag siab txog cov cai tshwj xeeb ntawm kev ua haujlwm machining thiab cov khoom siv ua haujlwm yog qhov tseem ceeb hauv kev xaiv cov khoom tsim nyog. Yam xws li kev txiav ceev, cov khoom siv hardness, thiab cov cuab yeej xav tau yuav tsum tau ua tib zoo xav txog. Thaum kawg, kev xaiv ntawm high-speed steel thiab cemented carbide yuav nyob ntawm seb cov ntawv thov tshwj xeeb thiab cov txiaj ntsig xav tau.