Cov kabmob steel feem ntau yog siv los tsim cov khoom dov thiab cov nplhaib ntawm cov kabmob dov. Txij li cov kabmob yuav tsum muaj cov yam ntxwv ntawm lub neej ntev, siab precision, tsis tshua muaj nqi calorific, kev kub ceev, siab rigidity, tsis tshua muaj suab nrov, siab hnav tsis kam, thiab lwm yam, nws yuav tsum muaj cov kabmob steel yuav tsum muaj: siab hardness, uniform hardness, siab elastic txwv, siab tiv taus qaug zog, tsim nyog toughness, tej yam hardenability, thiab corrosion kuj nyob rau hauv atmospheric lubricants. Txhawm rau ua kom tau raws li cov kev xav tau saum toj no, kev sib xyaw ntawm cov tshuaj lom neeg muaj pes tsawg leeg ntawm cov kabmob steel, cov ntsiab lus thiab hom non-metallic inclusions, particle loj thiab faib ntawm carbides, thiab decarburization yog nruj me ntsis yuav tsum tau. Cov kabmob steel feem ntau yog tsim nyob rau hauv cov kev taw qhia ntawm kev ua tau zoo, kev ua haujlwm siab thiab ntau yam. Bearing steels raug cais raws li lawv cov yam ntxwv thiab kev siv ib puag ncig: high-carbon chromium bearing steel, carburized bearing steel, high-temperature bearing.
steel, stainless bearing steel thiab tshwj xeeb tshwj xeeb bearing cov ntaub ntawv.
Txhawm rau ua kom tau raws li qhov yuav tsum tau muaj ntawm qhov kub thiab txias, kev kub ceev, siab load, corrosion kuj thiab hluav taws xob tsis kam, yuav tsum tau tsim cov khoom siv tshiab nrog cov khoom tshwj xeeb. Txhawm rau txo cov pa oxygen cov ntsiab lus ntawm cov kabmob steel, smelting thev naus laus zis rau cov kabmob steel xws li lub tshuab nqus tsev, electroslag remelting, thiab electron beam remelting tau tsim. Lub smelting ntawm qhov ntau ntawm cov kabmob steel yog smelted los ntawm hluav taws xob arc rauv thiab tsim rau ntau hom thawj smelting furnaces ntxiv rau sab nraud refining. Tam sim no, bearing steel yog tsim los ntawm thawj lub qhov cub nrog lub peev xwm ntawm ntau tshaj 60 tons ntxiv rau LF / VD los yog RH ntxiv rau kev nruam casting ntxiv rau kev dov mus rau qhov ua tau zoo, kev ua haujlwm siab thiab kev siv hluav taws xob tsawg. Nyob rau hauv cov nqe lus ntawm kev kho cua sov txheej txheem, kev kho cua sov tau tsim los ntawm lub tsheb hauv qab lub cub tawg thiab tswb lub qhov cub kom nruam controllable cua annealing rauv. Tam sim no, qhov ntev tshaj plaws kev kho cua sov rauv yog 150m, thiab cov qauv spheroidized ntawm cov kabmob steel ua tiav thiab tsim tau ruaj khov thiab tsis sib xws, txheej decarburization me me, thiab kev siv hluav taws xob tsawg.
Bearing steel yuav tsum muaj cov khoom nram qab no:
1. Kev tiv tauj siab qaug zog.
2. Siab hnav tsis kam.
3. High elastic txwv thiab yield zog.
4. High thiab uniform hardness.
5. Tej yam toughness.
6. Kev ruaj ntseg zoo.
7. Zoo corrosion inhibition kev ua tau zoo.
8. Cov txheej txheem ua tau zoo.
Common cov ntaub ntawv ntawm bearing steel:
Kev xaiv cov khoom siv steel hlau kuj yuav tsum tau yuav raws li cov kev xav tau tshwj xeeb. Rau cov khoom siv bearing ua haujlwm nyob rau hauv cov xwm txheej tshwj xeeb, raws li lawv cov kev xav tau tshwj xeeb, lawv kuj yuav tsum muaj cov khoom tshwj xeeb tsim nyog rau lawv cov xwm txheej, xws li: kub tsis kam, tsis kub tsis kam, corrosion kuj, Anti-radiation, anti-magnetic thiab lwm yam ntxwv.
Tag nrho cov kabmob muaj zog yog cov hlau uas muaj cov pa roj carbon chromium, xws li GCr15, nrog cov ntsiab lus carbon txog li 1 feem pua thiab cov ntsiab lus chromium txog li 1.5 feem pua. Txhawm rau txhim kho hardness, hnav tsis kam thiab hardenability, qee qhov silicon, manganese, molybdenum, thiab lwm yam, xws li GCr15SiMn, yog ntxiv kom zoo. Hom kabmob steel no muaj qhov tso zis ntau tshaj plaws, suav txog ntau dua 95 feem pua ntawm tag nrho cov kabmob steel tso zis.
Carburized bearing steel yog chromium, npib tsib xee, molybdenum alloy structural steel nrog cov ntsiab lus carbon ntawm {{0}}.08 rau 0.23 feem pua. Tom qab cov bearings tau tsim, nto yog carbonitrided los txhim kho nws hardness thiab hnav tsis kam. Cov hlau no yog siv rau hauv kev tsim cov kabmob loj uas muaj kev cuam tshuam loj, xws li loj dov zeb bearings, tsheb bearings, mining machinery bearings thiab railway tsheb bearings, thiab lwm yam.
Stainless hlau bearing muaj xws li high-carbon chromium stainless bearing hlau, xws li 9Cr18, 9Cr18MoV, thiab lwm yam, thiab nruab nrab-carbon chromium stainless bearing hlau, xws li 4Cr13, thiab lwm yam., uas yog siv los ua stainless thiab corrosion-resistant bearings.
High-temperature bearing steel yog siv rau qhov kub thiab txias ({1}} degree), thiab cov hlau yuav tsum muaj qee yam xim liab thiab hnav tsis kam ntawm qhov kev pabcuam kub. Lawv feem ntau yog hloov los ntawm cov cuab yeej siv siab ceev, xws li W18Cr4V, W9Cr4V, W6Mo5Cr4V2, Cr14Mo4 thiab Cr4Mo4V.
