Titanium tuav: GOST, yam ntxwv, daim ntawv thov

2024 Tus sau: Howard Calhoun | [email protected]. Kawg hloov kho: 2023-12-17 10:28

Titanium bar yog hom khoom profile nrog cov duab puag ncig. Nws yog tsim tsis tsuas yog los ntawm titanium, tab sis kuj los ntawm alloys ntawm cov khoom no. Nws yuav tsum raug sau tseg tias hom khoom no yog ib qho ntawm cov khoom siv titanium nrov tshaj plaws.

Raw khoom rau kev tsim

Yuav tsim cov titanium pas nrig, siv cov hlau xws li VT1-0. Nws belongs rau cov ntaub ntawv kev, thiab lwm yam alloys kuj tau npaj raws li nws lub hauv paus, piv txwv li, VT6, VT16, thiab lwm yam.

Qhov sib txawv tseem ceeb ntawm cov hlau dov yog tias nws muaj lub zog loj heev. Nyob rau tib lub sijhawm, cov khoom siv nws tus kheej yog suav tias yog lub teeb heev, muaj kev tiv thaiv siab rau corrosion. Tsis tas li ntawd, muaj kev tiv thaiv rau ntau yam kev txhoj puab heev ib puag ncig. Lwm qhov sib txawv tseem ceeb ntawm titanium rods thiab lwm yam yog tias lawv muaj qhov kub thiab txias thiab tsis tshua muaj siab. Ob tus yam ntxwv no nyob rau theem siab tshaj.

Piv txwv li, cov khoom siv raw tsis cuam tshuam los ntawm lub siab loj ntawm cov dej hiav txwv, thiab lawv kuj tsis tuaj yeem cuam tshuam los ntawm cov roj kub kub ntawm qhov kub thiab txias. Tshaj tag nrhontawm lwm yam, ib qho oxide zaj duab xis yog tsim rau saum npoo ntawm titanium tuav, uas ua haujlwm tiv thaiv.

khoom parameters

Ib qho ntawm cov khoom qab ntxiag tshaj plaws ntawm cov khoom no yog tias nws tsis cuam tshuam los ntawm qhov kub thiab txias, qhov sib txawv, siab heev. Cov lus no muaj tseeb ob qho tib si rau qhov kub thiab txias thiab qhov sib txawv. Ua tsaug rau qhov no, titanium rods tuaj yeem siv rau ntau yam kev nyab xeeb. Tsis tas li ntawd, nws tsim nyog sau cia tias cov khoom siv titanium muaj qhov zoo ntawm weldability Performance index, thiab kuj qiv lawv tus kheej zoo rau machining.

Qhov tshwj xeeb ntawm cov pas nrig ua los ntawm cov khoom siv raw no tau ua rau qhov tseeb tias lawv tau siv dav hauv kev lag luam dav hlau, kev tsim nkoj, thiab hauv kev lag luam engineering. Titanium tuav yog tus yam ntxwv los ntawm cov tsis xws li:

• txoj kab uas hla muaj ntau yam (ntawm 5mm txog 180mm);
• khoom ntev;
• kev ua tau zoo tuaj yeem yog qhov qub, nrog rau ntau hom;
• yuav txawv thiab hom uas siv rau kev tsim khoom;
• txoj kev tsim khoom thiab kev ua tiav kuj yuav txawv.

Bar alloy BT6

Hom no yog alloyed thiab ib qho ntawm feem ntau yog cov khoom siv raw rau kev tsim khoom. Cov tuav nrog cov cim no tuaj yeem siv rau hauv cov qauv ntawm qhov tseem ceeb, uas yuav muaj kev ntxhov siab ntxiv. Ib qho ntawm cov yam ntxwv tseem ceeb tshaj plaws hauv qhov no yog qhov hnyav ntawm titanium bar, uasyog qhov tsawg tshaj plaws tau, nrog rau siab zog. Kev ua haujlwm alloying yog ua tiav nrog qhov siab tshaj plaws, uas tso cai rau koj kom tau txais qhov sib npaug zoo tshaj plaws ntawm ob qhov tsis xws li lub zog thiab kev ua haujlwm. Qhov no ua rau nws yooj yim dua rau kev ua cov khoom siv, thiab, ntxiv rau, nthuav dav rau thaj tsam ntawm kev siv lub voj voog. Doping siv tshuaj xws li txhuas thiab vanadium. Thawj lub ntsiab yog tsim los ua kom muaj zog thiab ua kom muaj zog tiv thaiv qhov kub thiab txias, lub caij thib ob plays lub luag haujlwm tseem ceeb hauv kev tsim cov khoom tsim nyog plasticity.

GOST ntawm titanium rods tswj cov tshuaj ua kom tiav ntawm cov khoom. Xeev cov ntaub ntawv naj npawb 19807.

Alloy VT1-0

Hom no kuj suav hais tias muaj ntau, thiab cov khoom tsis huv yog tsawg. Bars los ntawm xws li alloys yog siv, feem ntau yog qhov hnyav ntawm cov qauv thiab nws tsis kam mus rau aggressive ib puag ncig yog qhov tseem ceeb tshaj plaws, tab sis lub zog yog relegated rau tom qab. Qhov sib txawv tseem ceeb ntawm hom kev cob qhia titanium alloy thiab lwm tus yog tias nws muaj qhov siab tshaj plaws ductility, vim tsis muaj kev hloov kho fusions. Qhov no kuj tau coj mus rau ntau txoj hauv kev los ua cov voj voog.

Lub cev ntsuas ntawm titanium

Lub caij "titanium" muaj tus lej atomic 22, thiab nws yog nyob rau hauv pawg thib ob ntawm pawg thib 4, nyob rau lub sijhawm thib 4 hauv lub sijhawm. Ib qho ntawm cov khoom tseem ceeb ntawm cov hlau no yog nws qhov siabrefractoriness. Lub melting point ntawm raw khoom yog 1668 ° C. Raws li qhov ntsuas no, nws tsuas yog qis dua rau ob peb lwm yam tshuaj, piv txwv li, tantalum lossis tungsten. Lwm feature yog hais tias nws yog paramagnetic. Qhov no txhais tau hais tias qhov teeb meem tsis tuaj yeem sib nqus thaum nyob hauv ib puag ncig sib nqus, tab sis nws yuav tsis raug thawb tawm ntawm nws.

Qhov ntom ntawm cov khoom siv raw yog 4.5 g / cm ³, thaum nws lub zog nce mus txog 140 kg / mm². Ib qho ntawm qhov txawv ntawm titanium yog tias cov khoom no xyaum tsis hloov lawv cov lej thaum raug kub. Yog tias peb tham txog qhov hnyav ntawm cov khoom, ces nws hnyav li 1.5 npaug ntau dua li txhuas (2.7 g / cm ³), tab sis tsuas yog tsawg dua li cov hlau zoo tib yam (7,8 g. /cm^{3). Txawm li cas los xij, yog tias peb sib piv cov khoom siv hluav taws xob ntawm peb lub ntsiab lus, ces cov titanium no yuav dhau mus ntau zaus.}

tshuaj lom neeg thiab kev siv

Lub caij "titanium" tau pom nyob rau xyoo pua 18th los ntawm tus kws tshuaj Askiv Askiv. Txij thaum ntawd los, cov khoom no tau raug tshawb fawb kom ntxaws. Nws yog lub npe hu hais tias nyob rau hauv nws cov ntshiab daim ntawv no lub ntsiab yog chemically active. Ib zaj duab xis tiv thaiv yuav tsim rau ntawm qhov chaw ntawm txhua yam khoom titanium, uas zoo heev txhim kho corrosion kuj. Oxidation ntawm cov khoom no tsis tshwm sim nyob rau hauv cov yam ntxwv xws li huab cua, dej hiav txwv. Titanium muaj peev xwm tswj tau nws lub xeev thiab kev ua tau zoo, txawm tias nyob rau hauv ib puag ncig tshuaj lom neeg ncaj ncees. Ignition ntawm hlau yog ua tau nyob rau hauv ib qho qhibhuab cua tsuas yog qhov kub ntawm 1200 ° C lossis ntau dua. Ntawm no nws tsim nyog ntxiv tias ntawm qhov kub siab, kev sib cuam tshuam ntawm lub caij nrog ntau hom reagents tau pom. Titanium pas nrig kuj zoo rau vuam.

Raws li rau thaj chaw ntawm kev siv cov khoom lag luam los ntawm cov ntaub ntawv zoo li no, nws tuaj yeem yog kev tsim cov foob pob hluav taws thiab chaw siv tshuab. Ntxiv rau qhov saum toj no ntawm kev siv, cov khoom siv titanium suav hais tias yog ib qho ntawm cov khoom siv ua tiav zoo tshaj plaws uas tuaj yeem siv rau kev tsim khoom siv cua sov ntxiv, tag nrho vim lawv cov cua sov.