Hauv cov hluav taws xob teb, hluav taws xob tshuab hluav taws kub tungsten rivets ua qhov tseem ceeb tivthaiv hauv kev hloov pauv lossis rhuav cov hluav taws xob hluav taws xob. Lawv qhov kev ua tau zoo cuam tshuam qhov zoo thiab muaj peev xwm ntawm ntau yam khoom siv hluav taws xob. Cov neeg hu nkauj tungsten yog siv dav hauv cov neeg ua npe, tsheb, lub tshuab hluav taws xob, hluav taws xob cov khoom siv hluav taws xob, ua rau lub luag haujlwm hluav taws xob.
Nrog rau kev txhim kho sai sai ntawm kev lag luam tsheb, qhov kev thov rau tungsten rivets rau automotive horns tau surged. Cov neeg siv tau imposing nce nruj zuj zus kom tau ntawm tungsten tiv tauj cov ntaub ntawv. Tus pas nrig yuav tsum yog pub dawb ntawm cov kab nrib pleb thiab khawb, nrog daim iav zoo li nplaim. Cov ntoo khaub lig-seem cov nplej yuav tsum yog qhov zoo thiab tusyees faib, thiab cov fibers yuav tsum tau luv luv kom ntseeg tau tias cov qauv kev ruaj ntseg ntawm cov khoom. Ib qho ntxiv, cov kev xav tau muab tso rau txoj kev ncaj, thiab kev ntseeg tau ncaj qha rau cov neeg sib cuag hluav taws xob hauv kev siv hluav taws xob hauv kev siv. Hais txog kev ua tau zoo, cov khoom yuav tsum muaj kev nyuaj siab kom withstand cov kev cuam tshuam nquag; Cov kev cuam tshuam zoo kom tsis txhob tawg nyob rau sab nraud sab nraud; Tsawg vapor siab thiab qis evaporation tus lej kom muaj lub cev ruaj khov nyob rau ntawm lub cev kub; Qhov qis coefficient ntawm thermal expansion los txo cov defensional vim qhov ntsuas kub hloov; Thiab zoo heev thiab ruaj khov arc tsis kam tiv nrog kev yaig los ntawm hluav taws xob arcs thaum lub voj voos ua thiab tawg.
Txhawm rau kom tau raws li cov kev xav tau no, cov kws tshaj lij tau mob siab rau kev siv zog. Hauv cov txheej txheem ntau lawm ntawmFais Tshuab Horn Tungsten Sib cuag Rivets, common issues such as splitting, brittleness, uneven grain size in the cross-section, and failure to meet requirements for rod concentricity and straightness often arise. Cov teeb meem no cuam tshuam rau kev txhim kho cov khoom lag luam zoo. Cov kws tshaj lij tau ua kev tshuaj xyuas kev nkag siab txog kev tshawb fawb thiab pheej sim ua kev sim kom txheeb xyuas qhov teeb meem no.
Firstly, kev tswj hwm zoo ntawm cov khoom siv raw yog qhov tseem ceeb heev. Yog hais tias lub purity ntawm tungsten ore yog tsawg thiab muaj impurities, ntau yam tsis xws luag tuaj yeem tshwm sim thaum ua tiav. Qhov thib ob, cov chaw parameter ntawm kev ua tshuab kuj tseem cuam tshuam rau qhov zoo ntawm hluav taws xob tungsten tiv tauj cov rivets rau tshuab raj. Piv txwv li, hauv kev ua cov kauj ruam xws li forging thiab dov, tsis tsim nyog siv xws li kub, thiab kev ua kom ceev tau yooj yim coj mus rau kev sib cais thiab brittleness. Tsis tas li ntawd, cov qauv ntsuas thiab ruaj khov ntawm cov cuab yeej siv tsis tuaj yeem pom, raws li kev sib txawv me me hauv cov khoom siv tsis tau rau hauv cov khoom.
Txhawm rau daws cov teeb meem no, cov kws tshaj lij tau ua tiav cov kev ntsuas zoo. Nyob rau hauv cov khoom siv rawement theem, cov khoom siv yog nruj me ntsis kev tshuaj ntsuam, thiab lub purity ntawm tungsten ore yog qhov ntsuas kom zoo nkauj kom paub meej cov ntaub ntawv zoo. Nyob rau hauv cov nqe lus ntawm kev ua thev naus laus zis, ntsuas tsis tau ua tiav. Los ntawm cov kev sim dav dav thiab simulations kev ua ke ntawm kev ua kom sov ntawm kev ua qhov kub thiab txias, thiab nrawm yog pom. Nyob rau tib lub sijhawm, cov cuab yeej ua tau siab rau txhim kho cov cuab yeej thiab muaj kev phom sij ntawm cov kev sib tw hauv lub cav los ntawm cov teeb meem cov cuab yeej.
Los ntawm cov khoom pom ntawm lub tswv yim, Tungsten yog cov hlau uas tsis yog ferrous thiab cov hlau tseem ceeb. Hauv lub sijhawm puag thaum ub, tungsten ee paub li "pob zeb hnyav." Xyoo 1781, Swedish Chemist Carl Wilhelm Scheefe nrhiav cov schaeelite thiab ua tiav cov kua qaub tshiab elide-tungstic acid. Xyoo 1783, tus neeg Spanish nrhiav Wolframite thiab tseem rho tawm tungstic acid los ntawm nws. Nyob rau tib lub xyoo, tungsten hmoov tau xub los ntawm kev txo tungsten trioxide nrog carbon, thiab lub caij yog npe npe. Tungsten muaj ib tug crustal nplua mias ntawm tsuas yog 0. 001%, thiab 20 tungsten-muaj cov zaub mov tau pom. Tungsten cov nyiaj tso rau feem ntau tsim nyob rau hauv Association nrog Granitic magmatic kev ua si. Tom qab smelting, tungsten kev nthuav qhia ib qho silvery-dawb, lus qhia nws yog xim hlau zoo nkauj, nrog ib qho siab heev melting point thiab tseem ceeb tawv.
Nws yog cov khoom siv tshwj xeeb uas muaj zog rau tungsten rau kev nthuav tawm cov kev ua haujlwm zoo dua thaum siv cov khoom hluav taws xob lossis cov khoom sib chwv. Nws tiv taus arc yaig, zoo nrog txoj kev txwv tsis pub muaj kev sib chwv ntawm cov chaw sib tiv tauj los ntawm hluav taws xob arcs. Nws muaj cov khoom siv tiv thaiv zoo, ua rau nws tsis tshua ua raws li lwm cov ntaub ntawv ntawm kev kub siab. Hlau dav hlau evaporation, hloov chaw, thiab noj tau tshwm sim los ntawm cov hluav taws xob hluav taws xob yog qhov tsawg, ua kom lub sijhawm ntev ruaj khov ntawmTungsten tiv tauj rau AC ZAJCov. Nws muaj cov muaj kev cuam tshuam tam sim no, muaj kev ntseeg siab ua tiav Circuit Court tsim thiab tawg. Ntxiv mus, nws muaj kev hnav zoo nkauj zoo nkauj thiab cuam tshuam tsis kam. Piv nrog lwm cov hlau lossis alloy cov ntaub ntawv, tungsten yog pheej yig, uas tau ua rau kev lag luam, kev ua liaj ua teb, kev tshawb fawb thiab thev naus laus zis.
