Keeb kwm ntawm tungsten

Tungsten yog ib hom tshuaj lom neeg nrog lub cim W thiab muaj tus lej atomic ntawm 74, uas tuaj yeem hu ua wolfram. tungsten yog qhov nyuaj rau pom nyob rau hauv cov xwm li dawb tungsten, thiab nws yeej ib txwm tsim los ua cov tebchaw nrog lwm cov ntsiab lus.

Tungsten muaj ob hom ore. Lawv yog scheelite thiab wolframite. Lub npe Wolfram los ntawm lub tom kawg. Nyob rau hauv lub xyoo pua 16th, miners qhia ib tug ntxhia uas feem ntau nrog tin ore. Vim cov xim dub thiab cov plaub hau zoo li cov pob zeb no, cov miners hu ua hom ore no“wolfram”. Cov pob txha tshiab no tau tshaj tawm thawj zaug hauv Georgius Agricola’s phau ntawv, De Natura Fossilium nyob rau hauv 1546. Scheelite twb nrhiav tau nyob rau hauv 1750 nyob rau hauv Swede. Thawj tus hu nws Tungsten yog Axel Frederik Cronstedt. Tungsten yog tsim los ntawm ob ntu, tung, uas txhais tau hais tias hnyav hauv Swedish, thiab sten, uas txhais tau tias pob zeb. Tsis txog thaum ntxov 1780s, Juan José de D´Elhuyar pom tias wolfram muaj tib yam li scheelite. Hauv kev tshaj tawm ntawm Juan thiab nws tus tij laug, lawv muab cov hlau tshiab no lub npe tshiab, wolfram. Tom qab ntawd, ntau thiab ntau tus kws tshawb fawb tau tshawb pom cov hlau tshiab no.

Nyob rau hauv 1847. ib tug engineer hu ua Robert Oxland tau tso cai patent hais txog tungsten., uas yog ib qho tseem ceeb kauj ruam mus rau industrialization.

Xyoo 1904, thawj tungsten teeb pom kev zoo tau patented, uas tau hloov pauv lwm yam khoom sai sai, zoo li cov roj carbon filament tsis zoo ntawm cov khoom lag luam teeb pom kev zoo.

Nyob rau xyoo 1920, los tsim cov duab kos tuag nrog lub siab tawv, uas nyob ze rau lub pob zeb diamond, tib neeg tau tsim cov khoom ntawm cemented carbide.

Tom qab Tsov Rog Ntiaj Teb Zaum II, kev lag luam tau txais txiaj ntsig zoo thiab kev loj hlob. Tungsten carbide kuj tau txais kev nyiam ntau dua li hom khoom siv, uas tuaj yeem siv rau ntau yam mob.

Xyoo 1944, K C Li, Thawj Tswj Hwm ntawm Wah Chang Corporation hauv Teb Chaws Asmeskas, tau luam tawm ib daim duab hauv Engineering & Mining Journal muaj npe: "40 Xyoo Kev Loj Hlob ntawm Tsob Ntoo Tungsten (1904-1944)"qhia txog kev txhim kho sai ntawm ntau yam kev siv tungsten hauv thaj chaw metallurgy thiab chemistry.

Txij thaum ntawd los, nrog rau txoj kev loj hlob ntawm kev lag luam thiab kev lag luam, tib neeg tau muaj kev xav tau siab rau lawv cov cuab yeej thiab cov khoom siv, uas yaum kom hloov kho tas li ntawm cov khoom siv tungsten carbide. Txawm tias tam sim no, tib neeg tseem tab tom tshawb nrhiav thiab tsim cov hlau no los muab kev ua haujlwm zoo dua qub thiab kev paub dhau los.

Ntawm no yog ZZBETTER. Yog tias koj txaus siab rau cov khoom lag luam tungsten carbide thiab xav paub ntau ntxiv thiab cov ntsiab lus, koj tuaj yeem tiv tauj peb hauv xov tooj lossis xa ntawv ntawm sab laug, lossis xa US MAIL hauv qab ntawm nplooj ntawv.