Kev soj ntsuam ntawm cov ntaub ntawv tseem ceeb thiab kev thov cov engineering ntawm cov pob qij txha

Cov pob qij txha sib txuas yog qhov sib txuas tseem ceeb sib txuas hauv cov tshuab tsheb ciav hlau. Cov khoom siv ntawm cov tsheb pob qij txha ncaj qha cuam tshuam kev nyab xeeb kev nyab xeeb, ruaj khov, thiab khiav lub neej. Kev xaiv ntawm cov ntaub ntawv sib koom ua ke niaj hnub ua rau muaj lub zog, kev coj ua kom zoo, thiab vuam kev ua haujlwm zoo nyob rau hauv ntev-} kev nyuaj siab thiab kev ntxhov siab ib puag ncig.

Ⅰ. Cov Khoom Siv Khoom Loj Ntawm Kev Sib Tw Rau Tsheb

Cov pob qij txha sib txuas yog feem ntau ua haujlwm ntawm cov neeg tshwj xeeb uas phim lossis tshaj qhov ua tau zoo ntawm cov khoom sib tw tseem ceeb. Cov ntaub ntawv tseem ceeb muaj xws li cov hlau, alloy steel, thiab micro-- lub zog steel. Cov tub qhe ib txwm siv U71MN (Suav tus qauv) lossis R260 (European txheem) cov roj carbon hlau, tib yam li cov hlua me me. Cov ntaub ntawv no muaj cov ntsiab lus carbon (kwv yees li 0.7%) thiab muab lub zog weldability thiab muaj zog yooj yim.

Nrog rau kev txhim kho ntawm high - ceev thiab hnyav {{{{{{{{} Lub zog allloy yog ua lub ntsiab. Piv txwv li, Suav siab siab - Ceev cov hlau ceev siv U75V (muaj 0.05% {1mng (nrog cov kab ntawm niobium thiab titanium). Microalloy cov ntsiab lus ua kom muaj lub ntsej muag zoo, ntxiv rau lub zog ntawm kev sib koom tes rau 880-1100 mpa kom txhim kho qis qis tsawg-kub thiab tsis kam rau spalling thiab chipping. Kev sib txuas mus European nyiam tagnrho cov hlau loj xws li ER7 (muaj 0.8% chromium thiab 0.2% molybdenum). Kev kho cua sov tsim tsim kom muaj hardness gradient kom sib npaug hnav tsis kam thiab cuam tshuam nyuaj.

Ii. Cov Khoom Siv Tseem Ceeb Yuav Tsum Tau

Cov ntaub ntawv sib koom ua ke yuav tsum muaj raws li cov kev qhia tshwj xeeb:

1. Lub zog siab thiab qaug zog tiv thaiv: Qhov kev sib koom tes ua kom muaj zog tshaj lossis sib npaug nrog 500 MPa lub neej ntau dua li 2 × 10⁶.

2. Hnav thiab spalling Kuj xws li vanadium thiab chromium los tsim HRC), xws li VC 35-45, txo tus nqi hnav.

3. VUAM sib xyaw ua ke: Thaum siv cov cua sov vuam los yog nyem vuam hnyav, cov pa roj carbon monoxide, cov pa roj carbon monoxide, cov pa roj carbon monoxide.

III. Cov qauv kev loj hlob hauv cov ntaub ntawv tshiab

In recent years, bainitic steel and nanocrystalline composite coating technology have been gradually applied to high-end joints. Piv txwv li, tus bnbro bainitic sib koom tes tsim nyob rau hauv Suav teb ua tau zoo bainite qauv los ntawm ib tug txheej txheem austempering. Nws tswj hwm tau zoo heev ntawm - 40 degree, ua kom haum rau siv nyob rau hauv qhov chaw txias thiab siab}} qhov chaw siab. Tsis tas li ntawd, Laser Cladding ntawm Wc {{}} CO txheej ntxiv tuaj yeem nyob hauv cov pob qij txha ua kom ntau dua 2 hli, tseem vam txog kev sib tham tu.

Kev ua kom zoo dua ntawm kev tsheb sib txuas ua ke cov ntaub ntawv yog qhov taw qhia tseem ceeb ntawm kev sib tw thev naus laus zis. Kev tsim kho yav tom ntej yuav txav mus rau qhov ntse, tus kheej- Cov ntaub ntawv saib xyuas fiber ntau), ntxiv txhim kho kev ntseeg tau thiab txij nkawm kev txhim kho ntawm cov tsheb nqaj hlau.