Yuav ua li cas GR1 tso titanium tubing tuaj yeem kho cua sov kom tshem tawm cov khoom seem?

Thaum cov ntsiab lus hydrogen nyob rau hauv titanium tubing siab dhau lawm, qhov cuam tshuam toughness thiab notched tensile lub zog yuav poob ntau vim lub brittleness ntawm titanium tubing, yog li cov ntsiab lus hydrogen hauv titanium tubing yuav tsum tsis txhob ntau tshaj {{0}}}.015 %. Txhawm rau txo qhov nqus ntawm hydrogen, cov khoom yuav tsum muaj cov ntiv tes, dov zeb cov cim, roj thiab lwm yam khoom seem raug tshem tawm ua ntej kev kho cua sov, thiab cov cua hauv qhov cub kho cua sov yuav tsum tsis muaj dej vapor. Yog hais tias cov ntsiab lus hydrogen ntawm titanium tubing tshaj qhov tso cai, nws yuav tsum tau muab tshem tawm los ntawm lub tshuab nqus tsev annealing. Nqus annealing rau kev tshem tawm hydrogen feem ntau tuav ntawm 538-760 degree rau 2-4 teev ntawm lub siab tsawg dua 0.066Pa.

Thaum qhov kub tsis tshaj 540 degree, oxide zaj duab xis nyob rau saum npoo ntawm lub titanium raj yuav tsis thicken, thaum nyob rau hauv lub siab kub kho kub (ntau tshaj 760 degree), oxidation tus nqi yuav sai sai, thaum lub oxygen mus rau lub internal expansion ntawm cov khoom, tsim ntawm diffusion txheej - pa phem txheej. Oxygen pollution txheej embrittlement tus nqi yog siab, ua rau cov kab nrib pleb thiab kev puas tsuaj rau ntawm qhov chaw.

Muaj cov txheej txheem kev ua haujlwm (xws li sandblasting, txiav hauv tsev, thiab lwm yam) lossis cov txheej txheem tshuaj xws li pickling thiab tshuaj sib tsoo kom tshem tawm cov pa paug. Thaum tshav kub kub kev kho mob, yuav tsum nyob rau hauv lub premise ntawm kom ntseeg tau tias lub meteorite tshav kub kev kho mob, raws li tau zoo raws li lub sij hawm cua sov, kuj yuav tsum tau nqa tawm nyob rau hauv lub tshuab nqus tsev vacuum furnace los yog cua sov rauv nrog inert gas (argon, nitrogen, thiab lwm yam). . Daim ntawv thov tsim nyog kuj tuaj yeem zam lossis txo qhov kev kis kab mob los ntawm cua sov titanium raj hauv qhov cub cua.