Cemented carbide sintered ntaube cov khoom ntaub thiab vim li cas soj ntsuam

Cemented carbide yog hmoov metallurgy cov khoom cua sov nrog cobalt, npib tsib xee thiab molybdenum micron-me me hmoov ntawm high-hardness refractory. Sintering yog ib qib tseem ceeb heev hauv kev tso cai carbide. Lub npe hu ua sintering yog kom sov cov hmoov compact rau ib tug kub, cia nws rau lub sijhawm thaum muaj sijhawm los txais cov khoom siv nrog cov khoom uas xav tau. Cov txheej txheem Sintering ntawm cemented carbide yog qhov nyuaj heev, thiab nws yooj yim los tsim cov khib nyiab yog tias koj tsis xyuam xim. Niaj hnub no, chuanegrui xiaobian yuav qhia rau koj cov kev pov tseg zoo li qub thiab cov laj thawj.

1. Carbide sintered pov tseg yog thawj tus tev
Uas yog hais, lub saum npoo ntawm cov cemented carbide kis los ntawm kev tawg lossis tawg, thiab nyob rau hauv cov ntses me me, tawg pleb, thiab txawm tias pulverization. Cov ntaub nyias nyias yog vim kev sib tiv tauj ntawm cobalt rau hauv cov carbon-muaj cov pa roj carbon decomposes dawb carbon decomposes dawb rau hauv lub zos lub zog ntawm cov pob txha hauv lub cev, ua rau cov ntaub qhwv.

2. Qhov thib ob feem ntau cov cemented carbide sintered pov tseg yog qhov
Pores saum 40 microns yog hu ua pores. Yam uas tuaj yeem ua rau blistering yuav tsim pores. Ib qho ntxiv, thaum muaj impurities nyob rau hauv cov sintered lub cev uas tsis yog wetted los ntawm molten hlau, lossis cov segration ntawm cov kua dej yuav ua pores.

3. Qhov thib peb feem ntau cov cemented carbide sintered cov khoom pov tseg cov khoom siv tsis tau
Muaj qhov nyob hauv cov cemented carbide alloy khoom, thiab compved nthwv dej tshwm rau ntawm qhov chaw sib xws. Qhov tshwm sim no yog hu ua blistring. Lub ntsiab yog vim li cas rau blistering yog tias cov sintered lub cev muaj cov roj ci siab heev. Muaj feem ntau ob hom: ib qho yog tias huab cua accumulates hauv sintered lub cev, thiab thaum lub sij hawm sintering shrinkage txheej txheem, huab cua txav sab hauv mus rau saum npoo. Yog hais tias muaj impurities ntawm qee qhov loj me hauv cov sintered lub cev, xws li alloy scraps, scraps hlau, thiab cua yuav zoo mloog ntawm no. Tom qab lub cev sintered tshwm hauv ib theem ua kua thiab yog qhov tseem ceeb, huab cua tsis tuaj yeem raug rho tawm. Cov hlwv los ntawm cov chaw me tshaj plaws.

Qhov thib ob yog tias muaj kev siv tshuaj lom neeg cov tshuaj tiv thaiv uas ua rau muaj cov roj loj ntawm cov roj hauv cov sintereded lub cev. Thaum muaj qee tus oxides nyob rau hauv sintered lub cev, lawv tau txo tom qab cov kua theem tshwm sim los tsim cov roj, uas yuav ua rau cov khoom npuas; WC-CO ALOYS feem ntau muaj los ntawm agglomeration ntawm oxides hauv kev sib xyaw.

4. Kuj tseem muaj lub koom haum tsis sib xws: sib xyaw

5, thiab tom qab ntawd muaj deformation
Qhov xwm txheej tsis xwm yeem hloov ntawm lub cev sintered yog hu ua deformation. Qhov laj thawj tseem ceeb rau kev tawm tsam yog raws li hauv qab no: qhov ntom nti faib cov khoom sib xyaw tsis zoo, vim hais tias qhov ceev ntawm alloy tiav yog tib yam; Lub cev sintered yog qhov loj heev uas tsis muaj cov pa roj carbon nyob hauv zos, vim tias tsis muaj cov pa roj roj tsawg; lub nkoj thauj khoom tsis tsim nyog; Lub thawv thaub qab yog qhov tsis ncaj.