Tsarin Tsarin Tungsten Carbide

Tsarin sintering yana ɗaya daga cikin matakan da ake buƙata don samar da samfuran carbide tungsten. Bisa ga tsari na sintering, za a iya raba tsari na sintering zuwa matakai hudu na asali. Bari mu yi magana game da waɗannan matakai guda huɗu daki-daki kuma za ku ƙarin sani game da tsarin sintering na tungsten carbide.

1. Cire Kafa Agent da Ƙona-In mataki

Saboda hauhawar zafin jiki, danshi, iskar gas, da sauran barasa a cikin busassun busassun foda ko mai yin gyare-gyare za su shafe su har sai sun lalace.

Ƙara yawan zafin jiki zai haifar da haifar da bazuwar wakilai a hankali ko vaporization. Sa'an nan mai kafa wakili zai kara yawan carbon abun ciki na sintered jiki. Yawan abun ciki na carbon sun bambanta tare da bambance-bambance a cikin wakili na samar da matakai daban-daban.

A yanayin zafin jiki, raguwar hydrogen na cobalt da tungsten oxide ba su da ƙarfi idan injin ya ragu kuma yana raguwa.

Tare da karuwar yawan zafin jiki da annealing, an kawar da matsalolin hulɗar foda a hankali.

Ƙarfe ɗin da aka ɗaure ya fara farfadowa kuma ya sake sakewa. Yayin da yaduwar ƙasa ke faruwa, ƙarfin matsawa yana ƙaruwa. Ƙimar girman toshe yana da rauni kuma ana iya sarrafa shi azaman abin filastik.

2. M State Sintering Stage

Jikin da aka yi la'akari da shi zai yi kwangila a fili a cikin madaidaicin matakin ɓacin rai. A cikin wannan mataki, daɗaɗɗen amsawa, yaduwa, da kwararar filastik suna ƙaruwa, kuma jikin da aka lalata zai yi kwangila.

3. Liquid Sintering Stage

Da zarar jikin da aka lalatar ya bayyana lokacin ruwa, raguwar yana ƙare da sauri. Sa'an nan tsarin asali na gami zai kasance a ƙarƙashin canjin crystalline. Lokacin da zafin jiki ya kai zafin eutectic, solubility na WC a Co na iya kaiwa kusan 10%. Saboda yanayin tashin hankali na lokaci na ruwa, ƙwayoyin foda suna rufe da juna. Saboda haka, lokacin ruwa a hankali ya cika pores a cikin barbashi. Kuma yawan toshe yana ƙaruwa sosai.

4. Matsayin sanyaya

Don mataki na ƙarshe, zafin jiki zai ragu zuwa zafin jiki. Yanayin ruwa zai yi ƙarfi yayin da zafin jiki ya ragu. Siffar ƙarshe na gami an gyara haka. A wannan mataki, da microstructure da lokaci abun da ke ciki na gami canza tare da sanyaya yanayi. Domin inganta kayan haɗin gwal na zahiri da na injiniya, ana iya amfani da wannan sifa ta gami don dumama simintin carbide.

Idan kuna sha'awar samfuran carbide tungsten kuma kuna son ƙarin bayani da cikakkun bayanai, zaku iya tuntuɓar mu ta waya ko wasiƙa a hagu, ko Aika wasiƙun Amurka a kasan shafin.