Chifukwa Chiyani Zogulitsa za Tungsten Carbide Zimachepa Pambuyo Pochita Sintering?

Tungsten carbide ndi imodzi mwazinthu zodziwika bwino zamabizinesi amakono. Mu fakitale, nthawi zonse timagwiritsa ntchito zitsulo za ufa kupanga tungsten carbide. Mu sintering, mutha kupeza kuti zinthu za tungsten carbide zidachepa. Ndiye chinachitika ndi chiyani kwa zinthu za tungsten carbide, ndipo chifukwa chiyani zinthu za tungsten carbide zidachepa pambuyo pozizira? M'nkhaniyi, tifufuza chifukwa chake.

Kupanga zinthu za tungsten carbide

1. Kusankha ndi kugula 100% zopangira, tungsten carbide;

2. Kusakaniza tungsten carbide ufa ndi cobalt ufa;

3. Kupera ufa wosakaniza mu makina osakaniza a mpira ndi madzi ena monga madzi ndi Mowa;

4. Utsi kuyanika ufa wonyowa;

5. Kuphatikizira ufa mu mawonekedwe osiyanasiyana ndi makulidwe malinga ndi zofuna za makasitomala. Njira zolimbikitsira zoyenera zimasankhidwa ndi mitundu ndi makulidwe azinthu za tungsten carbide;

6. Kulowa m’ng’anjo yoyaka;

7. Final khalidwe kufufuza.

Magawo a sintering tungsten carbide mankhwala

1. Kuchotsedwa kwa woumba ndi sitepe yoyaka moto;

Panthawi imeneyi, wogwira ntchitoyo ayenera kuwongolera kutentha kuti kuchuluke pang'onopang'ono. Pamene kutentha kumawonjezeka pang'onopang'ono, chinyontho, gasi, ndi zosungunulira zotsalira mu tungsten carbide yophatikizika zidzasungunuka, kotero siteji iyi ndikuchotsa chowumba ndi zinthu zina zotsalira ndikuwotcha. Gawoli limachitika pansi pa 800 ℃

2. Gawo lokhazikika la sintering;

Kutentha kumawonjezeka ndikupitilira 800 ℃, kumatembenukira ku gawo lachiwiri. Gawoli limachitika madzi asanakhalepo m'dongosolo lino.Panthawi imeneyi, kutuluka kwa pulasitiki kumawonjezeka, ndipo thupi la sintered limachepa kwambiri.Kutsika kwa Tungsten carbide kumatha kuwonedwa mozama, makamaka pamwamba pa 1150 ℃.

Cr. Sandvik

3. Madzi-gawo sintering siteji;

Pa gawo lachitatu, kutentha kumawonjezeka mpaka kutentha kwa sintering, kutentha kwambiri panthawi ya sintering. The shrinkage imatsirizidwa mwamsanga pamene gawo lamadzimadzi likuwonekera pa tungsten carbide ndipo porosity ya tungsten carbide imachepa.

4. Kuzizira siteji.

The carbide simenti pambuyo sintering akhoza kuchotsedwa mu ng'anjo sintering ndi utakhazikika kutentha firiji. Mafakitole ena adzagwiritsa ntchito kutentha kwa zinyalala mu ng'anjo ya sintering kuti agwiritse ntchito matenthedwe atsopano. Panthawiyi, pamene kutentha kumatsika, microstructure yomaliza ya alloy imapangidwa.

Ngati muli ndi chidwi ndi zinthu za tungsten carbide ndipo mukufuna zambiri ndi zambiri, mutha KULUMIKIZANA NAFE pa lamya kapena makalata kumanzere, kapena TITUMIZANI MAIME pansi pa tsamba.