Kev siv ntawm tungsten qws

Luv luv qhia txog tungsten pas nrig

Tungsten bar tseem hu ua tungsten alloy bar. Tungsten alloy rods (WMoNiFe) yog tsim los ntawm cov hmoov hlau ntawm qhov kub thiab txias, siv cov hmoov metallurgy tshwj xeeb tshaj yog kub kub. Nyob rau hauv txoj kev no, cov khoom siv tungsten alloy muaj cov thermal expansion coefficient tsawg, thermal conductivity zoo, thiab lwm yam khoom siv. Thaum kub kub, tungsten alloy pas nrig yog siv los ua cov khoom siv nrog lub siab melting point thiab qis thermal expansion coefficient. Qhov sib ntxiv ntawm tungsten alloying ntsiab pab txhim kho lub tshuab muaj peev xwm, toughness, thiab weldability. Cov khoom siv yog tsim los ntawm kev tsim cov tungsten alloy rods kom tshem tawm cov teeb meem cuam tshuam nrog kev kho cua sov ntawm lwm yam khoom siv.

Cov ntawv thov kev lag luam

Tungsten yog cov hlau tsis muaj hlau thiab cov hlau tseem ceeb. Tungsten ore tau hu ua "lub pob zeb hnyav" nyob rau hauv ancient sij hawm. Nyob rau hauv 1781, Swedish chemist Carl William Scheyer nrhiav pom scheelite thiab rho tawm ib tug tshiab lub caij ntawm acid - tungstic acid. Xyoo 1783, Spanish Depuja nrhiav pom wolframite thiab rho tawm tungstic acid los ntawm nws. Nyob rau hauv tib lub xyoo, txo tungsten trioxide nrog carbon yog thawj zaug kom tau tungsten hmoov thiab hu ua lub caij. Cov ntsiab lus ntawm tungsten nyob rau hauv lub ntiaj teb crust yog 0.001%. Muaj 20 hom tungsten-cov kabmob uas tau pom. Tungsten deposits feem ntau yog tsim nrog cov kev ua ntawm granite magmas. Tom qab smelting, tungsten yog ib tug silver-dawb lustrous hlau nrog ib tug heev melting point thiab zoo hardness. Tus naj npawb atomic yog 74. Nrog grey lossis silver-dawb xim, siab hardness, thiab siab melting point, tungsten carbide rods tsis eroded ntawm chav tsev kub. Lub hom phiaj tseem ceeb yog tsim cov filaments thiab high-speed txiav alloy steel, superhard pwm, thiab kuj siv rau hauv cov cuab yeej kho qhov muag, cov cuab yeej tshuaj [tungsten; wolfram]—— Element symbol W. Ib lub filament kos los ntawm ib tug tungsten pas nrig yuav siv tau raws li ib tug filament nyob rau hauv lub teeb, hluav taws xob raj, thiab lwm yam.

Kev siv tub rog

Thaum tus fighter mus txog lub hom phiaj, nws ceev nrooj poob cov mos txwv. Cov mos txwv niaj hnub tsis zoo ib yam li yav dhau los. Cov mos txwv tso ua ntej yog hnyav heev. Piv txwv li, Tomahawk missiles muaj peev xwm nqa tau 450 kg ntawm TNT explosives thiab siab explosives. Cov dav hlau niaj hnub no tsis tuaj yeem nqa ntau cov khoom tawg. Nws tau hloov lub tswvyim tshiab ntawm kev ntaus lub hom phiaj. Es tsis txhob siv cov mos txwv ib txwm, ib lub pas hlau ua los ntawm cov hlau tungsten raug muab tshem tawm, uas yog tungsten pas nrig.

Los ntawm qhov siab ntawm kaum kilometers los yog ntau pua kilometers, ib tug me me stick yog muab pov rau ntawm ib tug heev ceev ceev, uas yog txaus rau tog ib tug destroyer los yog ib tug aircraft carrier, cia nyob ib leeg ib lub tsheb los yog lub dav hlau. Yog li nws tuaj yeem ua lub luag haujlwm hauv qhov siab ntawm precision thiab ceev ceev heev.

Daim ntawv thov teb ntawm tungsten pas nrig

· iav melting

· Kub-kub rauv cua sov caij thiab cov khoom siv

· Vuam electrodes

· Filament

· Cov riam phom siv ntawm X-37B

Cov txheej txheem ua

Sintering, forging, swaging, dov, zoo sib tsoo, thiab polishing.

Yog tias koj txaus siab rau tungsten carbide rods thiab xav tau cov ntaub ntawv thiab cov ntsiab lus ntxiv, koj tuaj yeem tiv tauj peb hauv xov tooj lossis xa ntawv ntawm sab laug, lossis xa ntawv xa mus rau peb hauv qab ntawm nplooj ntawv.