CBN vs. PCD: Sib ntaus sib tua ntawm Superhard Cov cuab yeej txiav - Kev Sib Tw Sib Nqus rau hauv Kev Tsim Khoom thiab Kev Ua Haujlwm
CBN (Cubic Boron Nitride) CNC tej cuab yeej
CBN, los yog Cubic Boron Nitride, yog cov khoom siv hluavtaws paub txog nws qhov tawv tawv thiab ua haujlwm ntev. Nws yog thib ob nkaus xwb rau pob zeb diamond nyob rau hauv cov nqe lus ntawm hardness, uas ua rau nws yog ib tug zoo tagnrho cov ntaub ntawv rau tej cuab yeej siv nyob rau hauv high-kev ua tau zoo machining. CBN tej cuab yeej feem ntau yog siv rau machining hardened steels, cam khwb cia hlau, thiab lwm yam high-strength cov ntaub ntawv uas nyuaj rau txheej txheem nrog cov pa tej cuab yeej.
Kev tsim cov txheej txheem ntawm CBN cuab yeej:
Kev tsim cov cuab yeej txiav CBN feem ntau suav nrog kev sib xyaw ntawm boron nitride (BN) nyob rau hauv kev kub siab thiab kub. Cov txheej txheem pib nrog boron hmoov thiab cov pa roj nitrogen, uas raug rau cov xwm txheej huab cua (siab dua 1500 ° C) los tsim cov cubic boron nitride (c-BN) crystals. Cov khoom siv lead ua no tau ua ke nrog cov khoom siv matrix, feem ntau yog cobalt binder, los tsim ib qho kev txiav los yog cov cuab yeej. Qhov kev sib xyaw ua ke no muab cov cuab yeej CBN nrog nws qhov zoo tshaj plaws hardness thiab hnav tsis kam.
CBN inserts tuaj yeem tsim nyob rau hauv ntau yam duab thiab ntau thiab tsawg, nyob ntawm qhov kev xav tau ntawm machining. Cov cuab yeej zaum kawg yog feem ntau sintered, hauv av, thiab coated los txhim kho nws cov kev ua tau zoo thiab qhov chaw tiav. Cov cuab yeej muaj peev xwm tswj tau cov npoo ntse ntse ntawm qhov kub thiab txias ua rau nws yog qhov kev xaiv zoo tshaj plaws rau kev siv hnyav hauv kev lag luam xws li aerospace, automotive, thiab cov cuab yeej tsim khoom.
PCD (polycrystalline pob zeb diamond) CNC txiav cuab yeej
PCD, lossis Polycrystalline Pob Zeb Diamond, yog cov khoom siv los ntawm kev sib txuas ua ke zoo pob zeb diamond siv lead ua nyob rau hauv qhov siab thiab kub, ua rau muaj zog, ruaj khov khoom siv. PCD cov cuab yeej paub txog lawv qhov tshwj xeeb hnav tsis kam, tshwj xeeb tshaj yog thaum siv cov hlau tsis muaj hlau xws li txhuas, tooj liab, thiab tooj dag, nrog rau cov khoom sib xyaw.
Kev tsim cov txheej txheem ntawm PCD cov cuab yeej:
Kev tsim cov cuab yeej PCD pib nrog kev tsim cov hmoov zoo pob zeb diamond, uas yog tov nrog ib tug hlau binder, feem ntau yog cobalt los yog lwm yam hlau hmoov. Qhov kev sib xyaw no yog tom qab ntawd raug rau qhov kub-kub, cov txheej txheem kub siab hu ua "sintering" hauv xovxwm tshwj xeeb. Thaum cov txheej txheem no, cov pob zeb diamond siv lead ua fuse ua ke, tsim kom muaj cov qauv ntom ntom, polycrystalline.
PCD cov cuab yeej feem ntau yog tsim los ntawm ob hom: monolithic thiab brazed. Nyob rau hauv txoj kev monolithic, tag nrho cov cuab yeej yog tsim los ntawm PCD, thaum nyob rau hauv txoj kev brazed, ib txheej nyias ntawm PCD yog txuas rau carbide substrate. Tom qab sintering, PCD cov cuab yeej yog hauv av thiab polished kom meej qhov ntev, xyuas kom meej txiav cov npoo thiab ib tug du nto. Lawv tuaj yeem raug kho nrog cov coatings ntxiv los ua kom lawv tsis kam hnav thiab oxidation, uas tuaj yeem txhim kho lawv cov kev ua tau zoo hauv cov ntawv thov tshwj xeeb.
Cov cuab yeej PCD feem ntau yog siv rau kev txiav cov haujlwm siab thiab tshwj xeeb tshaj yog muaj txiaj ntsig zoo rau cov khoom siv machining uas ua rau cov khoom tseem ceeb rau cov khoom siv tsoos. Vim lawv qhov tshwj xeeb hardness thiab tsis tshua muaj kev sib txhuam, lawv xa cov kev ua tau zoo tshaj plaws hauv kev ua tiav thiab kev ua haujlwm siab ceev.
Kev sib piv ntawm CBN thiab PCD CNC tej cuab yeej
| Khoom | CBN (Cubic Boron Nitride) | PCD (polycrystalline pob zeb diamond) |
|---|---|---|
| Khoom siv | Nyuaj, hluavtaws boron nitride | Synthetic pob zeb diamond particles sib raug zoo nyob rau hauv siab |
| Hardness | Siab heev, thib ob tsuas yog pob zeb diamond | Tsis tshua muaj siab, cov ntaub ntawv nyuaj tshaj plaws |
| Daim ntawv thov | Hardened steels, cam khwb cia hlau, high-temperature alloys | Non-ferrous hlau, composites, aluminium, tooj liab, thiab lwm yam. |
| Hnav Resistance | Zoo heev, tshwj xeeb tshaj yog nrog cov ntaub ntawv nyuaj, abrasive | Zoo heev, tshwj xeeb tshaj yog rau cov mos mos, uas tsis yog-ferrous hlau |
| Thermal stability | Siab heev, ua haujlwm kub heev | Nruab nrab, rhiab rau qhov kub thiab txias |
| Tool Lub Neej | Lub neej ntev lub cuab yeej nyob rau hauv ntxhib thiab hnyav-duty machining | Lub neej ntev heev, tshwj xeeb tshaj yog nyob rau hauv kev ua tiav |
| Txiav ceev | Zoo tagnrho rau kev txiav hnyav thiab nruab nrab ceev | High txiav ceev rau lub teeb thiab nruab nrab txiav |
| Nqi | Feem ntau qis dua PCD | Siab dua vim cov txheej txheem tsim khoom thiab cov khoom siv |
| Hom kev lag luam | Aerospace, automotive, tuag thiab pwm, steel industries | Automotive, aerospace, electronics, thiab plastics |
| Nto tiav | High precision thiab zoo nto tiav nyob rau hauv cov ntaub ntawv nyuaj | Zoo heev nto tiav nyob rau hauv cov ntaub ntawv uas tsis yog-ferrous |
Qhov txawv tseem ceeb:
Khoom Compatibility:
CBN yog tshwj xeeb tshaj yog haum rau cov ntaub ntawv tawv thiab abrasive xws li hardened steels thiab cam khwb cia hlau.
PCD yog qhov zoo tagnrho rau cov ntaub ntawv mos xws li txhuas, tooj liab, thiab cov khoom sib xyaw, uas nyiam hnav cov cuab yeej tsoos sai.
Kev ua tau zoo ntawm Cov Kub Kub:
CBN cov cuab yeej tuaj yeem tiv taus qhov kub siab dua yam tsis muaj degrading, ua rau lawv zoo dua rau kev siv hluav taws xob siab thiab kub kub ua haujlwm.
PCD cov cuab yeej, thaum nyuaj heev, tsis tshua muaj siab ntev ntawm qhov kub siab heev thiab tuaj yeem poob lawv ntug hauv cov xwm txheej zoo li no.
Kev txiav txim siab nqi:
CBN cov cuab yeej zoo li pheej yig dua li cov cuab yeej PCD, vim tias PCD yuav tsum muaj cov txheej txheem tsim khoom ntau dua thiab cov khoom siv raw nws tus kheej kim dua.
Surface Finish thiab Precision:
Cov cuab yeej PCD yog qhov tsim nyog rau kev ua tiav cov txheej txheem zoo tshaj plaws, tshwj xeeb tshaj yog nyob rau hauv cov ntaub ntawv tsis-ferrous.
CBN cov cuab yeej, thaum meej, ua tau zoo dua nyob rau hauv durability thiab txiav toughness ntau dua li ua tiav qhov siab tshaj plaws tiav hauv cov ntaub ntawv softer.
Ob leeg CBN thiab PCD CNC txiav cov cuab yeej muaj kev ua tau zoo, tab sis lawv ua raws li kev xav tau sib txawv. CBN cov cuab yeej yog qhov zoo tagnrho rau cov khoom siv tawv, tawv thiab kev siv kub, thaum PCD cov cuab yeej ci thaum ua haujlwm nrog cov hlau softer thiab cov ntaub ntawv sib xyaw, muab lub neej ntev thiab kev ua haujlwm zoo. Kev xaiv ntawm ob yog nyob ntawm cov khoom tshwj xeeb uas raug machined, lub neej yuav tsum tau ua, thiab qhov chaw machining.
