1. Cov yam ntxwv ntawm tungsten carbide kais
Tungsten carbide kais dej (khoom carbide kais) yog cov cuab yeej txiav cov cuab yeej tsim los rau tapping siab -hardness, siab - cov ntaub ntawv muaj zog. Nrog lub hardness ntawm HRC89-93, lawv tuaj yeem yooj yim txiav steel hlau, stainless hlau, titanium alloys, npib tsib xee-raws li alloys, thiab lwm yam ntaub ntawv, thiab lawv cov kev pab cuam lub neej yog 5-10 npaug ntawm siab -ceev steel kais.
Kev ua haujlwm tseem ceeb:
Hardness: HRA 89–93 (≈ HRC 70–74, nco ntsoov qhov sib txawv ntawm kev hloov pauv)
Flexural zog: 1800-2400 MPa
Kub ua haujlwm kub: 800-1000 degree
Kev txwv sab saud ntawm cov khoom siv tawv tawv: HRC 55 (qee qib tuaj yeem ncav cuag HRC 60)
2. Thaum twg yuav tsum tau siv tungsten carbide kais dej?
High- cov ntaub ntawv hardness: hardened steel nrog HRC Ntau dua lossis sib npaug ntawm 35, steel hlau tuag (Cr12MoV, SKD11), stainless hlau (xws li 17-4PH).
Ntau lawm: automotive engine blocks, gearbox vaj tse, aerospace structural Cheebtsam, yuav tsum tau tsis tshua muaj downtime rau cov cuab yeej hloov.
High - cov xov muaj tseeb: precision qib 6H / 5g6g, yuav tsum muaj siab sib xws nyob rau hauv xov pitch txoj kab uas hla.
Automated ntau lawm kab: CNC machining chaw thiab tapping chaw yuav tsum txhim khu kev qha nti tawg thiab lub neej ntev kev pab cuam.
3. Qhov cuam tshuam ntawm txheej txheej xaiv ntawm kev ua haujlwm
|
txheej |
Cov ntaub ntawv siv tau |
Nta |
|
TiN |
General steel, cam khwb cia hlau |
Lub hom phiaj dav dav, txhim kho qhov tawv tawv |
|
TiCN |
Cam khwb cia hlau, aluminium alloy |
High hardness thiab zoo hnav tsis kam |
|
TiAlN / AlTiN |
Stainless hlau, titanium alloy, tshav kub-resistant alloy |
Kub kub tsis kam, tiv thaiv - nplaum |
|
CrN |
Adhesive cov ntaub ntawv xws li tooj liab thiab txhuas |
Tsis tshua muaj kev sib txhuam, txo buildup |
|
DLC |
Qhuav tapping, tsis yog -ferrous hlau |
Tsis tshua muaj coefficient ntawm kev sib txhuam, tsis yog - nplaum. |
4. Txoj Cai Tsim Channel
Ncaj flute taps: haum rau los ntawm qhov, muab cov nti tshem tawm ncaj qha, thiab muaj qhov zoo tshaj plaws rigidity.
Spiral flute kais (sab saum toj nti tshem tawm): Haum rau cov qhov muag tsis pom kev, cov chips raug tso tawm rov qab, ua rau nws tsis tshua tuaj yeem txhaws hauv qab ntawm lub qhov. Pom zoo lub kaum sab xis: 35℃-40 degree.
Kauv kais (hauv qab nti tshem tawm): Haum rau kev sib sib zog nqus los ntawm qhov, chips raug tso tawm rau pem hauv ntej, thiab txiav yog du.
Kev pom zoo:
Qhov muag tsis pom qhov stainless hlau → Kauv zawj
Sib sib zog nqus- qhov hardened steel → Ntsia taub hau
Puag dhau - qhov zoo tib yam steel → ncaj zawj
5. Pom zoo txiav tsis tau (siv M6 × 1 kais ua piv txwv)
|
Cov khoom siv ua haujlwm |
Hardness (HRC) |
Txiav ceev Vc (m / min) |
Kev sib hloov ceev (rpm) |
|
Ordinary carbon hlau |
20 |
8–12 |
420–630 |
|
hlau alloy |
30 |
5–8 |
260–420 |
|
Stainless hlau |
25 |
4–6 |
210–320 |
|
Hardened hlau |
50 |
2–4 |
100–210 |
|
Titanium alloy |
35 |
3–5 |
160–260 |
Tus nqi pubyuav tsum nruj me ntsis sib npaug rau kev sib hloov ceev × suab; nws tsis tuaj yeem teem nws tus kheej.
6. Kev ua tsis tiav thiab kev tiv thaiv
|
Hom kev ua tsis tiav |
vim li cas |
Kev daws |
|
chipping ntug |
Kev sib hloov ceev dhau, txheej txheej tsis tsim nyog, lossis qhov tsis zoo ntawm kev tsav lub qhov |
Txo qhov ceev los ntawm 20%, xyuas lub bore kab, thiab hloov nrog ib tug tougher qib. |
|
tawg |
Chip blockage, misaligned pilot qhov, ntau tapping qhov tob |
Ua kom tapping cycles, siv tapping chucks hloov tau, thiab ua kom tob hauv qab lub qhov. |
|
Rough threads |
Cov cuab yeej hnav, cua txias tsis txaus, thiab kev sib hloov ceev heev |
Hloov cov kais dej, ntxiv cov roj txiav, thiab tsim kom muaj qhov nrawm. |
7. FAQ
Q: Puas yog tungsten carbide kais dej haum rau txhua daim ntawv thov tapping?
A: Tsis haum rau siab - ntim coarse tapping ntawm cov hlau me me los yog txhuas (tus nqi siab thiab ua rau chipping). Qhov zoo tshaj plaws rau cov ntaub ntawv nrog hardness> HRC30 lossis siab precision yuav tsum.
Q: Yuav ua li cas tiv thaiv tungsten carbide kais los ntawm chipping?
A: Xyuas kom lub qhov taub hauv qab yog 0.02-0.05 mm loj dua li tus qauv tus nqi (rau cov ntaub ntawv nyuaj), siv cov roj tapping uas muaj cov khoom siv siab heev, thiab zam kom qhuav tapping.
Q: Tus nqi sib txawv ntawm tungsten carbide kais dej thiab siab -ceev steel kais yog dab tsi?
A: Tus nqi ntawm ib qho tungsten carbide kais yog kwv yees li 3-6 npaug ntawm lub siab ceev steel kais, tab sis nws lub neej muaj peev xwm ua tau ntev dua 10 npaug ntawm cov khoom siv nyuaj, ua rau tus nqi qis dua ib chav.
Hu rau WAT Toolkom tau txais cov carbide laum cov khoom tsim nyog rau koj cov kev ua haujlwm machining.