Tungsten yachitsulo, yomwe dzina lake limachokera ku Swedish - tung (heavy) ndi sten (mwala) amagwiritsidwa ntchito makamaka ngati simenti ya tungsten carbides.Ma carbides kapena zitsulo zolimba monga momwe amatchulidwira nthawi zambiri ndi gulu lazinthu zopangidwa ndi 'simenti' ya njere za tungsten carbide mu matrix omangira achitsulo cobalt ndi njira yotchedwa liquid phase sintering.
Masiku ano kukula kwa mbewu za tungsten carbide kumasiyana kuchokera ku 0,5 micron kupita ku 5 micron yokhala ndi cobalt yomwe imatha kukwera mpaka 30% kulemera kwake.Kuphatikiza apo, kuwonjezera ma carbides ena amathanso kusiyanitsa zomaliza.
Chotsatira chake ndi gulu la zipangizo zomwe zimadziwika ndi
Mphamvu zapamwamba
Kulimba mtima
Kuuma kwakukulu
Posintha kukula kwa njere ya tungsten carbide ndi cobalt zomwe zili mu matrix, ndikuwonjezeranso zida zina, mainjiniya amatha kupeza kalasi yazinthu zomwe katundu wake amatha kupangidwa ndi mitundu yosiyanasiyana ya uinjiniya.Izi zikuphatikiza zida zaukadaulo wapamwamba, zida zovala ndi zida zogwirira ntchito yomanga migodi ndi mafuta ndi gasi.
Zogulitsa za Tungsten Carbide ndizomwe zimachitika chifukwa cha zitsulo za ufa zomwe zimagwiritsa ntchito tungsten carbide ndi ufa wachitsulo wa cobalt.Nthawi zambiri, zosakaniza zosakaniza zimayambira 4% cobalt mpaka 30% cobalt.
Chifukwa chachikulu chosankha kugwiritsa ntchito tungsten carbide ndikupezerapo mwayi pa kuuma kwakukulu komwe zinthuzi zimawonetsa motero kumachepetsa kusinthika kwazinthu zilizonse.Tsoka ilo, chilango chomwe chimalumikizidwa ndi kuuma kwakukulu ndikusowa kulimba kapena mphamvu.Mwamwayi, posankha nyimbo zomwe zili ndi cobalt zapamwamba, mphamvu zimatha kupindula limodzi ndi kuuma.
Sankhani zinthu zotsika za cobalt pamapulogalamu omwe gawolo silingayembekezere kukhudzidwa, kukwaniritsa kuuma kwakukulu, kukana kuvala kwambiri.
Sankhani zomwe zili ndi cobalt wambiri ngati ntchitoyo ikukhudza kugwedezeka kapena kukhudzidwa ndikukwaniritsa kukana kwamphamvu kuposa zida zina zambiri, kuphatikiza kuthekera kokana kuwonongeka.
Nthawi yotumiza: Jul-29-2022