Cov Khoom Siv Khoom Ntsuas Thiab Kev Siv Lub Tshuab ua khoom siv hauv Machining

Feem ntau, cov ntaub ntawv ntawm cov cuab yeej tig yog raws li hauv qab no:

1 Cov pa roj carbon siab:

High-carbon steel tig cov cuab yeej yog ua los ntawm cov carbon nrog cov ntsiab lus carbon ntawm 0.8% mus rau 1.5%. Tom qab tau quenched thiab hardened, kev sib txhuam thaum lub sij hawm txiav yog yooj yim mus rau lub siab thiab muag muag, thiab yog hloov los ntawm lwm yam cuab yeej xws li high-speed hlau. Feem ntau tsuas yog haum rau kev txiav ntawm cov ntawv hlau mos. Cov khoom siv dav dav yog SK1, SK2, SK7, thiab lwm yam.

2 Kev kub ceev steel:

Kev kub ceev steel yog ib hom steel-raws li cov txhuas feem ntau hu ua dawb tig twj. Nws yog tsim los ntawm kev ntxiv W, Cr, V thiab Co alloy cov ntsiab lus rau carbon hlau nrog cov pa roj carbon ntsiab lus ntawm 0.7 ~ 0.85%. Piv txwv li, 18-4-4 lub siab steel cov khoom muaj 18% tungsten, 4% chromium thiab 4% vanadium high-speed steel. Kev sib txhuam thaum tshav kub tsim nyob rau hauv qhov txiav ntawm high-speed steel raws cov cuab yeej yuav ua tau siab li 6000C, uas tsim nyog rau tig ceev hauv qab 1000rpm thiab xov tig. Feem ntau, high-speed steel tig cov cuab yeej xws li SKH2, SKH4A, SKH5, SKH6, SKH9, thiab lwm yam.

3 Cov cuab yeej tsis muaj cam khwb cia hlau:

Qhov no yog ib qho me me ntawm cov cobalt, chromium thiab tungsten. Nws kuj tseem hu ua superhard cam khwb cia alloy vim nws nyuaj rau kev txiav thiab yog tsim los ntawm casting. Tus sawv cev tshaj plaws yog hnub qub. Nws lub cuab tam toughness thiab hnav tsis kam yog qhov zoo tshaj plaws, ntawm qhov kub ntawm 8200C Nws lub hardness tseem tsis muaj kev cuam tshuam, thiab nws cov cua sov tsis kam tshaj qhov ntawm cov hlau siab, uas tsim nyog rau kev ua haujlwm siab thiab kev txiav tob.

4Saib cov khoom siv carbonized:

Cov cuab yeej carbide yog cov hmoov hlau ua kom zoo. Lub ntsiab ntawm cov cuab yeej tungsten carbide yog 50% rau 90% tungsten, thiab titanium, molybdenum, tantalum, thiab lwm yam tau ntxiv nrog cobalt hmoov ua tus binder, thiab tom qab ntawd rhuab thiab ua txhaum. Lub hardness ntawm carbonized cuab yeej yog siab tshaj qhov ntawm lwm yam khoom siv. Nws yog peb zaug nyuaj siab tshaj plaws-cov carbon hlau. Nws yog qhov tsim nyog rau kev txiav cov hlau lossis pob zeb tawv. Vim tias nws cov khoom tawg yooj yim thiab nyuaj, nws tsuas yog tsim tau rau hauv plaub ya ri thiab welded rau ntau dua cov tawv. Ntawm lub cuab yeej tuav, thaum tus txha hniav tawg lossis tawg, koj tuaj yeem hloov lwm rab lossis hniav tshiab. Qhov no tig ntawm lub twj yog hu ua pov tuam pov. Cov cuab yeej siv roj carbon monoxide tau muab faib ua peb pawg: P, M, thiab K raws li cov txheej txheem thoob ntiaj teb (ISO) ntawm lawv cov khoom txiav. Lawv tau cim nrog peb xim: xiav, daj, thiab liab: qeb P haum rau kev txiav cov hlau, suav nrog P01, P10, thiab P20. , P30, P40, P50 rau 6 pawg, P01 yog qhov siab ceev ceev tig qhov hloov nrog tus lej me thiab siab hnav tsis kam. P50 yog qhov tsawg-hloov ntxhib tig nrog cov lej loj thiab siab toughness. Qhov kov yog xim pleev xim rau xim xiav txhawm rau txheeb xyuas nws. K qeb yog qhov tsim nyog rau kev txiav cov khoom tawv thiab tawv tawv xws li pob zeb thiab cov hlau cam. Muaj tsib pab: K01, K10, K20, K30, K40. K01 yog qhov kev kub ceev uas tau hloov ua lwm yam, thiab K40 yog lub cuab yeej hloov ceev ceev los hloov. Qhov hom cuab yeej tuav no tau pleev xim rau xim liab rau kev ua kom paub. Hom M nyob nruab nrab ntawm Hom P thiab Hom M, thiab haum rau kev txiav cov khoom nrog ntau dua ntawm kev coj nruj, xws li ntau hom. Hom cuab yeej tuav cov xim pleev xim rau xim daj kom paub nws.

5 Tej hub tig twj:

Tej hub tig cov cuab yeej yog ua los ntawm alumina hmoov, ntxiv ib qho me me ntawm cov ntsiab lus, thiab tom qab ntawd sintered ntawm qhov kub. Nws qhov nyuaj, tiv tshav kub kub thiab txiav nrawm yog siab dua tungsten carbide, tab sis vim nws qhov nkig, nws tsis haum rau qhov tsis ua ntxiv lossis tig loj. Tsuas yog tsim rau kev kub ceev xov.

6 Tus txiav pob zeb diamond

Rau cov txheej txheem qib siab ua haujlwm, kev lag luam pob zeb diamond nrog puag ncig lossis ntug sab nraud tuaj yeem siv rau polishing. Qhov chaw mos yuav tau txais. Nws yog tsuas yog siv rau precision tig ntawm tooj liab alloys lossis teeb ci alloys. Kev kub ceev yuav tsum tau siv thaum tig, nrog tsawg kawg ntawm 60 ~ 100m / min, feem ntau 200 ~ 300m / min.

7 boron oxide cubic boron oxide (CBN)

Nws yog cov khoom siv uas tau nce hauv xyoo tsis ntev los no. Nws lub hardness thiab hnav tsis kam yog thib ob rau pob zeb diamond. Cov cuab yeej no haum rau kev ua cov hlau tawv thiab coj-hlau rau cov alloys, nickel-based alloys, thiab cob-based alloys.