Carbonic thiab high-carbon alloy steel feem ntau qhia tsis sib xws. Qhov kev tsis sib xws no feem ntau tshwm sim hauv cov kua carbide tsom xam, carbide band-shaped, thiab carbide mesh.
1 Carbide kua tsom xam
Carbonized kua tsom xam yog sub-stabilized Gonglai Austenity tsim los ntawm cov pa roj carbon thiab alloy ntsiab nyob rau hauv cov kua theem. Thaum lub sij hawm ua cov cua sov, cov kua carbide tsom xam tau tawg mus rau hauv cov khoom tsis sib xws, thiab nws tau muab faib rau hauv cov saw hlau los yog sawb nyob rau hauv cov kev taw qhia ntawm lub siab txuas ntxiv.
Kev soj ntsuam cov kua roj carbonized yog vim muaj txiaj ntsig zoo ntawm cov kua dej ua kom sov, qhov dej kub siab, qhov txias ntawm cov hlau ingot qeeb dhau, thiab cov chromium txo qhov siab tshaj plaws ntawm cov kua roj carbon hauv lub auscles. Nws yog feem ntau ntseeg hais tias cov kua carbide tsom xam belongs rau carbide ntawm daim duab peb sab siv lead ua, thiab nws hardness yog siab heev. Nws muaj nyob yuav ua rau cov kabmob qhov chaw tsim cov kab nrib pleb thaum lub sij hawm kho thermal. Thaum lub sij hawm siv cov txheej txheem kev soj ntsuam kua ntawm carbides tuaj yeem ua rau qaug zog tawg thiab txo lub neej qaug zog.
2 carbide pluaj
Cov carbide band yog crystalline bias (kev tsom xam kev tsis ncaj ncees) tsim los ntawm cov kua hlau steel hauv cov txheej txheem solidification, ua rau cov pa roj carbon siab thiab tsis tshua muaj siab ntawm cov kev ntsuas sib txawv.
Tom qab lub dov txuas ntxiv, ntau qhov ntau dhau ntawm cov carbides ntau dhau los ntawm cov khoom siv siab thaum lub sij hawm ua kom txias, yog li tsim cov pa roj carbon cov ntaub so ntswg ntawm cov xim dub thiab dawb (siab thiab qis carbon).
Qhov kawg solidification cheeb tsam ntawm cov hlau ingot los yog casting yog nplua nuj nyob rau hauv ib tug loj npaum li cas ntawm alloy ntsiab, xws li sulfur, phosphorus thiab lwm yam impurities. Nws yog qhov chaw sib sau ua ke tshaj plaws rau cov khoom tsis yog hlau sib xyaw thiab carbides. Tag nrho cov nyiaj thiab kev faib tawm ntawm carbides thaum lub sij hawm txias txheej txheem yog nyob ntawm qhov degree ntawm kev tsom xam thaum xub thawj. Nrog rau kev siv zog ntawm carbonized band-shaped bias, rhiab heev ntawm kev tawg ntawm kev kho cua sov nce, qhov microscopic hardness sib txawv ntawm siab thiab qis carbon txoj siv nce, thiab cuam tshuam rau lub neej qaug zog ntawm kev sib cuag. Band-shaped carbides tuaj yeem ntsuas raws li GB / T 1299 "Alloy Tool Steel".
3 carbide mesh
Lub carbide mesh yog ib qho carbide ntau tshaj uas tau muab faib rau hauv lub network-shaped faib ntawm cyber-shaped faib ntawm ciam teb ntawm co-analyzed steel. Nws muaj feem xyuam rau cov tshuaj muaj pes tsawg leeg thiab kev tsis ncaj ncees ntawm cov hlau. Cov band tsis sib xws kuj yog ib qho tseem ceeb uas cuam tshuam rau lub neej kev pab cuam ntawm ib feem. Carbide mesh tuaj yeem ntsuas raws li GB / T 1298 "Carbon Tool Steel".
Daim duab saum toj no qhia tau hais tias micro-tissue ntawm T12 steel tag nrho annealing. Daim ntawv tsaus nti hauv daim duab yog lub teeb hlaws, thiab cov mesh dawb nyob ib puag ncig nws yog lub cev carburizing thib ob.
Hauv cov ntsiab lus, cov carbides tsis sib xws hauv high-carbon steel thiab high-carbon high-alloy steel yog qhov tseem ceeb ntawm cov macro thiab micro-analysis ntawm cov kua hlau thaum lub caij txias. Ntawm peb, cov tshuaj carbide yog qhov teeb meem tshaj plaws. Txawm hais tias carbide kua tsom xam yog txawv kiag li los ntawm non-metallic tov nrog non-metallic tov nyob rau hauv cov xwm, raws li deb raws li nws cov teeb meem muaj kev txhawj xeeb, carbide kua tsom xam yuav ua ke mus rau hauv lub Scope ntawm kev ntsuam xyuas ntawm lwm yam khoom. Txhawm rau tshem tawm cov tshuaj carbide, hauv cov ntsiab lus, nws yog ib qho tsim nyog yuav tsum tau txo qis cov ceg ntoo hauv cov hlau hauv cov hlau, kom qhov chaw hnyav tshaj plaws hauv cov hlau tsis tuaj yeem tsim cov siv lead ua Lai Aurona.
4 Cov kabmob steel mesh carbide tsim thiab tsim kev puas tsuaj
Lub mesh carbide tau tsim nyob rau hauv Austrian lub cev siv lead ua lub ntiaj teb thaum lub sij hawm high-end dov kub thiab cov txheej txheem qeeb thiab txias. Thaum lub mesh carbides tsim, tshwj xeeb tshaj yog thaum lub carbide yog tag nrho ntawm lub ntiaj teb siv lead ua thiab dav, nws yuav muaj kev phem tshwm sim thaum lub sij hawm tom ntej thiab siv. Ua ntej tshaj plaws, qhov hnyav carbide mesh hauv cov kabmob hlau tsis tuaj yeem raug tshem tawm tag nrho hauv lub neej yav tom ntej ballization annealing. Nyob rau hauv txoj kev no, nws yog ib qho yooj yim rau kev sib tsoo cov kab nrib pleb thaum lub sij hawm sib tsoo txheej txheem ntawm bearing processing, kuj hu ua cracking; thib ob, yog carbides, yog carbides Lub mesh yog loj, tsis tsuas yog lub ballization annealing yuav raug tshem tawm, tab sis txawm nyob rau hauv lub yav tom ntej quenching lub koom haum. Nyob rau hauv rooj plaub no, nws yog ib qho yooj yim los ua quenching tawg. Txawm hais tias tsis muaj qhov tawg thaum lub sijhawm quenching, carbonized Lub mesh kuj yuav yooj yim ua rau qaug zog tawg.
Thaum lub carbide mesh cov ntaub so ntswg nyob rau hauv cov kabmob steel yuav ua rau kom lub brittleness ntawm cov hlau thiab txo cov qaug zog lub neej ntawm cov kabmob. Yog li ntawd, tsis muaj cov ntaub so ntswg loj carbide mesh raug tso cai nyob rau hauv cov kabmob steel cov ntaub so ntswg hauv lub xeev siv.
5 Yuav ua li cas tshem tawm carbonized mesh
High-carbon chromium bearing steel muaj cov ntsiab lus carbon siab, thiab muaj qee yam carbides rau kev tsim cov ntsiab lus. Thaum lub sij hawm solidification txheej txheem, cov ntsiab lus no muaj kev tsis ncaj ncees, uas ua rau tsis sib xws ntawm carbides nyob rau hauv steel.
Cov kev ntsuas coj los tshem tawm carbide mesh thaum lub sijhawm tsim khoom yog raws li hauv qab no:
1) Thaum smelting siab-carbon chromium bearing steel, cov ntsiab lus ntawm carbon thiab chromium yog nruj me ntsis tswj kom tau raws li qhov yuav tsum tau.
2) Thaum lub sij hawm coagulation txheej txheem ntawm cov hlau ingot, ceg-zoo li bias nyob rau hauv cov hlau yuav tsum tau txo thiab theem ntawm carbides yuav tsum tau txo.
3) Tswj qhov qis-dov kub nrog qis dua dov, thiab ua kom txias ceev tom qab dov kom txo cov qib carbonic ntawm cov kabmob steel.
Nrog rau kev txhim kho txuas ntxiv ntawm kev siv tshuab dov, cov txheej txheem ntawm kev ua kom txias tom qab dov tau maj mam siv dav, uas yog, los ntawm kev txo qhov kub ntawm qhov kawg dov, cua-txias, dej txau, lossis txias lub dab dej tom qab dov. Kev xyaum tau ua pov thawj tias thaum qhov kawg dov kub yog tsawg dua 850 degree C, Austrian lub cev siv lead ua me me, thiab nws txias tom qab dov, uas tiv thaiv nag lossis daus ntawm cov mesh carbide ntawm Aorer siv lead ua ntiaj teb. Nws puas zoo dua los tshem tawm mesh carbides?
