Kodi pali kusiyana kotani pakati pa simenti ya carbide ndi tungsten chitsulo?

Chitsulo cha Tungsten: Chomalizidwacho chimakhala ndi pafupifupi 18% tungsten alloy chitsulo. Chitsulo cha Tungsten ndi aloyi yolimba, yomwe imadziwikanso kuti tungsten-titanium alloy. Kuuma kwake ndi 10K Vickers, wachiwiri kwa diamondi. Chifukwa cha izi, zinthu zachitsulo za tungsten (zambiri mawotchi azitsulo za tungsten) zimakhala ndi khalidwe losavala mosavuta. Nthawi zambiri amagwiritsidwa ntchito pazida za lathe, zitsulo zobowola, zodula magalasi, zodula matayala. Ndi yamphamvu ndipo simawopa kutsekeka, koma ndi yolimba.

Cemented carbide: ndi gawo la ufa wazitsulo. Cemented carbide, wotchedwanso zitsulo ceramic, ndi ceramic ndi katundu wina zitsulo, amene amapangidwa ndi zitsulo carbides (WC, TaC, TiC, NbC, etc.) kapena oxides zitsulo (monga Al2O3, ZrO2, etc.) monga zigawo zikuluzikulu, ndi mlingo woyenera wa zitsulo ufa (Co, Cr, Mo, Ni, Fe kudzera zitsulo ufa, etc.). Cobalt (Co) amagwiritsidwa ntchito kuthandizira kugwirizanitsa mu aloyi, ndiye kuti, panthawi ya sintering, imatha kuzungulira tungsten carbide (WC) ufa ndikulumikizana mwamphamvu pamodzi. Pambuyo kuzirala, imakhala carbide yopangidwa ndi simenti. (Zotsatira zake ndi zofanana ndi simenti mu konkire). Zomwe zili ndi nthawi zambiri: 3% -30%. Tungsten carbide (WC) ndiye chigawo chachikulu chomwe chimatsimikizira zinthu zina zachitsulo za carbide kapena cermet, zomwe zimawerengera 70% -97% ya zigawo zonse (chiwerengero cha kulemera). Amagwiritsidwa ntchito kwambiri m'zigawo zosavala, zosatentha kwambiri, zolimbana ndi dzimbiri kapena mipeni ndi mitu yazida m'malo ovuta kugwira ntchito.

Chitsulo cha Tungsten ndi cha carbide yomangidwa, koma simenti ya carbide sikutanthauza chitsulo cha tungsten. Masiku ano, makasitomala aku Taiwan ndi maiko aku Southeast Asia amakonda kugwiritsa ntchito mawu akuti tungsten chitsulo. Mukakambirana nawo mwatsatanetsatane, mudzapeza kuti ambiri a iwo amatchulabe carbide yopangidwa ndi simenti.

Kusiyanitsa pakati pa zitsulo za tungsten ndi carbide cemented ndikuti chitsulo cha tungsten, chomwe chimadziwikanso kuti chitsulo chothamanga kwambiri kapena chitsulo chachitsulo, chimapangidwa powonjezera chitsulo cha tungsten ngati tungsten yaiwisi ku chitsulo chosungunula pogwiritsa ntchito teknoloji yopanga zitsulo, yomwe imadziwikanso kuti chitsulo chothamanga kwambiri kapena chitsulo, ndipo tungsten yake imakhala 15-25%; pomwe carbide yomangika imapangidwa ndi sintering tungsten carbide ngati thupi lalikulu ndi cobalt kapena zitsulo zina zomangira pogwiritsa ntchito ukadaulo wazitsulo za ufa, ndipo zomwe zili mu tungsten nthawi zambiri zimakhala pamwamba pa 80%. Mwachidule, chilichonse chokhala ndi kuuma kopitilira HRC65 bola ngati chili aloyi amatha kutchedwa cemented carbide, ndipo chitsulo cha tungsten ndi mtundu chabe wa carbide yomangidwa molimba pakati pa HRC85 ndi 92, ndipo nthawi zambiri imagwiritsidwa ntchito kupanga mipeni.