Tungsten: Moyo wa Makampani Ankhondo

Kwa makampani ankhondo, tungsten ndi ma alloys ake ndizovuta kwambiri, zomwe zimatsimikizira mphamvu zankhondo zadziko.

Kupanga zida zamakono, sikungasiyanitsidwe ndi zitsulo.Pokonza zitsulo, mabizinesi ankhondo ayenera kukhala ndi mipeni yabwino kwambiri ndi nkhungu.Pakati pa zitsulo zodziwika bwino, tungsten yekha ndi amene angagwire ntchito yofunikayi.Kusungunuka kwake kumaposa 3400 ° C.Chitsulo chotsutsa kwambiri chomwe chimadziwika, cholimba cha 7.5 (Mohs hardness), ndi chimodzi mwazitsulo zolimba kwambiri.

Munthu woyamba padziko lapansi kubweretsa tungsten m'munda wa zida zodulira anali British Maschette.Mu 1864, Marchet anawonjezera 5% ya tungsten ku zitsulo zitsulo (ndiko kuti, zitsulo zopangira zida zodulira, zida zoyezera, ndi zisamerezi) kwa nthawi yoyamba, ndipo zida zowonjezera zidawonjezera kuthamanga kwachitsulo ndi 50%.Kuyambira pamenepo, kuthamanga kwa zida zokhala ndi tungsten kwakula kwambiri.Mwachitsanzo, kuthamanga kwa zida zopangidwa ndi tungsten carbide alloy monga zinthu zazikulu zimatha kufika kupitirira 2000 m/min, zomwe ndi nthawi 267 kuposa zida zokhala ndi tungsten m'zaka za zana la 19..Kuphatikiza pa liwiro lalitali kwambiri, kuuma kwa zida za tungsten carbide alloy sikungachepetse ngakhale kutentha kwambiri kwa 1000 ℃.Chifukwa chake, zida za alloy carbide ndizoyenera kwambiri kudula zida za alloy zomwe zimakhala zovuta kupanga makina ndi zida zina.

Zomwe zimapangidwira pokonza zitsulo zimapangidwa makamaka ndi tungsten carbide ceramic cemented carbide.Ubwino wake ndikuti ndi wokhazikika ndipo ukhoza kukhomeredwa nthawi zopitilira 3 miliyoni, pomwe nkhungu zachitsulo za alloy wamba zimangokhomeredwa nthawi zopitilira 50,000.Osati zokhazo, nkhungu yopangidwa ndi tungsten carbide ceramic cemented carbide sizovuta kuvala, kotero kuti nkhonya yokhomeredwa ndiyolondola kwambiri.

Zitha kuwoneka kuti tungsten imakhudza kwambiri makampani opanga zida zadziko.Ngati kulibe tungsten, zingayambitse kuchepa kwakukulu pakupanga kwamakampani opanga zida, ndipo nthawi yomweyo, makampani opanga zida adzakhala opuwala.