Kutheni iiMveliso zeTungsten Carbide ziyancipha emva kokuSintering?

I-Tungsten carbide yenye yezona zixhobo zidumileyo kwishishini lanamhlanje. Kumzi-mveliso, sihlala sisebenzisa i-metallurgy yomgubo ukwenza iimveliso ze-tungsten carbide. Kwi-sintering, unokufumanisa ukuba iimveliso ze-tungsten carbide ziyancipha. Ke kwenzeka ntoni kwiimveliso ze-tungsten carbide, kwaye kutheni iimveliso ze-tungsten carbide zancipha emva kokuntywila? Kweli nqaku, siza kuphonononga isizathu.

Ukuveliswa kweemveliso ze-tungsten carbide

1. Ukukhetha kunye nokuthenga i-100% yezinto eziluhlaza, i-tungsten carbide;

2. Ukuxuba i-tungsten carbide powder kunye ne-cobalt powder;

3. Ukugaya umgubo oxutywe kumatshini wokuxuba ibhola kunye nolwelo olufana namanzi kunye ne-ethanol;

4. Tshiza ukomisa umgubo omanzi;

5. Ukuhlanganisa umgubo kwiimilo ezahlukeneyo kunye nobukhulu ngokweemfuno zabathengi. Iindlela zokucinezela ezifanelekileyo zigqitywe ngeentlobo kunye nobukhulu beemveliso ze-tungsten carbide;

6 berhalela kwiziko elitshisayo;

7. Ukujonga umgangatho wokugqibela.

Izigaba ze-sintering tungsten carbide iimveliso

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

Kweli nqanaba, umsebenzi kufuneka alawule ubushushu ukuba bunyuke kancinci kancinci. Njengoko ubushushu bukhula ngokuthe ngcembe, ukufuma, igesi, kunye ne-solvent eseleyo kwi-tungsten carbide edibeneyo iya kuba ngumphunga, ngoko eli nqanaba kukususa i-arhente yokubumba kunye nezinye izinto ezishiyekileyo kunye nokutshisa kwangaphambili. Eli nqanaba lenzeka ngaphantsi kwe800℃

2. Inqanaba eliqinileyo le-sintering;

Njengoko iqondo lobushushu linyuka ligqithe kwi-800℃, lijikela kwinqanaba lesibini. Eli nqanaba lenzeka phambi kokuba kubekho ulwelo kule nkqubo.Kule nqanaba, ukuhamba kweplastiki kuyanda, kwaye umzimba we-sintered uyancipha kakhulu.Ukuncipha kwe-tungsten carbide kunokujongwa ngokungqongqo, ngakumbi ngaphezulu kwe-1150 ℃.

Cr. Sandvik

3. Inqanaba le-liquid-sintering stage;

Kwinqanaba lesithathu, iqondo lokushisa liya kunyuka ukuya kwiqondo lokushisa, elona qondo lobushushu liphezulu ngexesha le-sintering. I-shrinkage igqitywe ngokukhawuleza xa isigaba se-liquid sibonakala kwi-tungsten carbide kunye ne-porosity ye-tungsten carbide iyancipha.

4. Inqanaba lokupholisa.

I-carbide ene-cemented emva kwe-sintering 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.

Ukuba unomdla kwiimveliso ze-tungsten carbide kwaye ufuna ulwazi oluthe kratya kunye neenkcukacha, ungaQHAGAMSHELANA NATHI ngefowuni okanye ngeposi ekhohlo, okanye SITHUMELE MAIL emazantsi ephepha.