Inkqubo yeSintering Tungsten Carbide

Njengoko sonke sisazi, i-tungsten carbide yenye yezona zinto zinzima ezisetyenziswayo kushishino lwanamhlanje. Ukwenza imveliso ye-tungsten carbide, kufuneka ibe namava oluhlu lweenkqubo zemizi-mveliso, njengokuxuba umgubo, ukugaya okumanzi, ukomisa ukutshiza, ukucinezela, ukuthambisa, kunye nokujonga umgangatho. Ngethuba lokutshisa, umthamo we-carbide ene-cemented uya kuncipha ngesiqingatha. Eli nqaku kukufumanisa ukuba kwenzeke ntoni kwi-tungsten carbide ngexesha lokutshisa.

Ngexesha le-sintering, kukho izigaba ezine ekufuneka i-tungsten carbide ibe nazo. Bazi:

1. Ukususwa kwe-ejenti yokubumba kunye nesigaba sokutshisa kwangaphambili;

2. Inqanaba eliqinileyo le-sintering;

3. Inqanaba le-liquid-sintering stage;

4. Inqanaba lokupholisa.

1. Ukususwa kwe-ejenti yokubumba kunye nesigaba sokutshisa kwangaphambili;

Kule nkqubo, ubushushu kufuneka bonyuswe ngokuthe ngcembe, kwaye esi sigaba senzeke ngaphantsi kwe-1800 ℃. Njengoko iqondo lobushushu lisanda, ukufuma, irhasi, kunye nentsalela yenyibilikisi kwi-tungsten carbide ecinezelekileyo iyaphuma kancinci kancinci. I-arhente yokubumba iya kwandisa umxholo wekhabhoni we-sintering cemented carbide. Kwi-sintering eyahlukeneyo, ukwanda komxholo we-carbide kuyahluka. Ukuxinzezeleka koqhagamshelwano phakathi kweengqungquthela ze powder kupheliswa ngokuthe ngcembe ngexesha lokunyuka kweqondo lokushisa.

2. Inqanaba eliqinileyo le-sintering

Njengoko iqondo lobushushu liya lisanda kancinci, i-sintering iyaqhubeka. Eli nqanaba lenzeka phakathi kwe-1800 ℃ kunye nobushushu be-eutectic. Ubushushu obubizwa ngokuba yi-eutectic ibhekisa kwelona qondo lobushushu lisezantsi apho ulwelo lunokubakho kule nkqubo. Eli nqanaba liya kuqhubeka ngokusekelwe kwinqanaba lokugqibela. Ukuhamba kweplastiki kuyanda kwaye umzimba we-sintered uyancipha kakhulu. Ngeli xesha, umthamo we-tungsten carbide uyancipha ngokucacileyo.

3. Isigaba solwelo sintering

Ngeli nqanaba, iqondo lokushisa liyenyuka lide lifikelele kwelona qondo liphezulu lobushushu kwinkqubo yokuntywila, iqondo lobushushu le-sintering. Xa isigaba se-liquid sibonakala kwi-tungsten carbide, i-shrinkage igqiba ngokukhawuleza. Ngenxa yokunyanzeliswa kwendawo yesigaba se-liquid, i-powder particles isondela komnye nomnye, kwaye i-pores kwi-particle igcwele ngokuthe ngcembe kwinqanaba le-liquid.

4. Inqanaba lokupholisa

Emva kokucoca, i-carbide ene-cemented ingasuswa kwisithando somlilo kwaye ipholile kwiqondo lokushisa. Ezinye iifektri ziya kusebenzisa ubushushu benkunkuma kwiziko lokuntywila ukuze kusetyenziswe ubushushu obutsha. Ngeli xesha, njengoko ubushushu behla, i-microstructure yokugqibela ye-alloy yenziwa.

I-Sintering yinkqubo engqongqo kakhulu, kwaye i-zzbetter inokukunika umgangatho ophezulu we-tungsten carbide. Ukuba unomdla kwiimveliso ze-tungsten carbide kwaye ufuna ulwazi oluthe kratya kunye neenkcukacha, ungaQHAGAMSHELANA NATHI ngefowuni okanye ngeposi ekhohlo, okanye SITHUMELE MAIL emazantsi ephepha.