Reversible txias dov ntawm titanium alloy rods thiab oxide zaj duab xis tshem tawm tshuab

Reversible rolling yog hais txog cov txheej txheem dov nyob rau hauv uas titanium pas nrig yog pheej compressed thiab deformed ntawm lub dov zeb kom thaum kawg tau cov khoom tuab. Cov khoom siv reversible dov zeb yog qhov yooj yim thiab muaj titanium coil conveying thiab uncoiling khoom, dov zeb, pem hauv ntej thiab nram qab coilers, thiab unloading tso zis khoom. Qee cov rolling mills ntxiv coilers ua ntej lossis tom qab dov raws li kev xav tau.

Cov khoom siv txias txias yog muab los ntawm cov khoom siv kub dov, thiab ib qho kub dov titanium coil hnyav dua. Lub taub hau thiab tus Tsov tus tw ntawm titanium kauj tuaj yeem txiav tawm thiab welded ua ke ntawm lub tshuab uncoiler kom muaj peev xwm ntau lawm ntawm cov txheej txheem txias dov.

Kub dov titanium rods yuav tsum tau khaws cia ua ntej txias dov zeb. Lub hom phiaj yog tshem tawm cov hlau oxide nplai rau ntawm qhov chaw ntawm titanium pas nrig, ua kom lub ntsej muag txias-dov titanium pas nrig du, thiab xyuas kom meej qhov kev vam meej ntawm dov ntau lawm.

Cov titanium coils uas kub dov yog hoisted los ntawm lub hauv paus warehouse mus rau lub eeb ntawm cov saw conveyor, thiab cov saw conveyor thauj cov titanium coils mus rau lub uncoiling txoj hauj lwm nyob rau hauv ib ntus rau uncoiling. Lub taub hau txuas ntxiv yog nkag mus rau hauv peb lub tshuab ncaj nraim los ntawm lub taub hau sib txuas thiab xa mus rau hauv yob qhov sib txawv los ntawm cov ntawv qhia txav tau. Lub taub hau lub taub hau mus txog qhov tawm sab coiler los ntawm kev tsa los yog kaw cov menyuam qhov sib txawv, yog muab tso rau hauv lub puab tsaig ntawm lub reel, thiab nruj nreem. Raws li lub thickness ntawm lub titanium pas nrig, tom qab ob peb lem, kho lub siab thiab nro, thiab ces nias down lub siab qhia phaj rau yob. Siv cov kua dov, pib lub tshuab dov, nce qhov ceev mus rau ib txwm ceev raws li cov txheej txheem dov, thiab ua thawj zaug dhau ntawm dov.

Thaum lub titanium coil tab tom yuav dov, lub tshuab dov yuav tsum qeeb thiab nres hauv lub sijhawm kom cov kab xev tail nres ntawm qhov nkag sab coiler nruas. Tom qab cov coiling pliers tom ntawm tus Tsov tus tw ntawm lub sawb, lub titanium dov zeb muab qhov thib ob hla ntawm nias raws li kev cai. Tus neeg teb xov tooj xaiv qhov nro, muab cov kua dov, thiab lub zeb ua rov qab dov.

Nyob ntawm qib titanium thiab tus qauv, 3 mus rau 7 kis ntawm reciprocating dov yog ua nyob rau hauv txhua kis. Thaum lub reciprocating dov mus txog qhov khib tus lej ntawm kev hla thiab nce mus txog cov khoom tuab, qhov sib txawv ntawm qhov yob yog tsa los yog kaw thiab tus Tsov tus tw yog springed raws li qhov zoo ntawm cov hlua khi. Nyob rau hauv lub reel ntawm lub coiler, daim kab xev tail yog welded rau sab nrauv titanium coil los yog taped. Lub titanium kauj yog thauj los ntawm yob los ntawm lub unloading trolley, thiab ces muab pov rau hauv lub titanium coil sau tank, thiab lub kauj yog cim. Raws li cov qauv, nws tuaj yeem hloov kho rau cov txheej txheem txuas ntxiv mus ntxiv.

Hauv kev tsim khoom lag luam, qib ntawm oxidation ntawm titanium alloy rods yuav txawv heev. Yog tias cov txheej txheem yav dhau los yog oxidized hnyav, xws li oxidation hnyav nyob rau hauv qhov kub thiab txias thiab tsim oxide nplai, sandblasting yuav tsum tau ua. Lub workpiece tom qab sandblasting yuav tsum mus los ntawm cov txheej txheem tom ntej (alkali tu, pickling). Yog hais tias cov oxide zaj duab xis yog nyias thiab sandblasting tsis tas yuav tsum tau, nws tuaj yeem raug pickled ncaj qha.

Titanium dioxide yog ib qho amphoteric compound nrog me ntsis alkalinity ntau dua acidity. Titanium dioxide yog thermally ruaj khov thiab tsuas yog decompose thaum kub heev. Nws kuj yog tshuaj ruaj khov thiab nyob rau hauv qis kub nws muaj kev ruaj ntseg zoo nyob rau hauv ntau inorganic thiab organic media. Insoluble nyob rau hauv dej thiab ntau lwm cov kuab tshuaj, insoluble nyob rau hauv ntau yam dilute acids tsuas yog hydrofluoric acid. Pob zeb diamond dioxide kuj insoluble nyob rau hauv concentrated sulfuric acid. Txawm li cas los xij, titanium dioxide yog soluble hauv kub concentrated sulfuric acid, nitric acid thiab sodium hydroxide daws, thiab tuaj yeem siv rau alkali ntxuav thiab pickling ntawm titanium screws thiab titanium alloy rods.

Kev tu alkali ntawm titanium alloy rods, nrog rau lwm yam hlau tsis tshua muaj, yog nqa tawm hauv molten alkali tov. Lub hom phiaj yog tshem tawm cov nplai oxide ntawm qhov chaw ntawm titanium alloy pas nrig ntawm qhov chaw ntawm lub workpiece. Qhov kev txiav txim ntawm alkaline tov thiab oxide nplai tuaj yeem tshem tawm oxide nplai. Txawm li cas los xij, txhawm rau tshem tawm cov nplai oxide ntawm qhov chaw ua haujlwm thaum zam nws cov kev mob tshwm sim, nws yuav tsum ntsuas cov oxidant (NaNO3 lossis KNO3) hauv NaoH yaj.

Cov tsis tseem ceeb uas cuam tshuam rau alkali tu txheej txheem yog alkali tov muaj pes tsawg leeg, alkali ntxuav kub thiab lub sij hawm.

Kev xaiv ntawm alkali Cheebtsam feem ntau txiav txim siab yuav ua li cas los tiv thaiv cov txheej txheem hydrogen nqus ntawm titanium thaum ntxuav alkali. Titanium screws thiab titanium alloy rods tuaj yeem tso cov hydrogen thaum lub sij hawm ntxuav alkali, uas muaj peev xwm nqus tau hydrogen. Hydrogen absorption tuaj yeem ua rau hydrogen embrittlement, thiab muaj pes tsawg leeg ntawm cov tshuaj alkali muaj qhov cuam tshuam loj rau qhov nqus ntawm hydrogen. Qhov sib ntxiv ntawm qee cov khoom xyaw uas tsis yog sodium hydroxide muaj qhov cuam tshuam loj rau hydrogen nqus thiab hlau poob thaum lub sij hawm alkali ntxuav ntawm titanium alloy rods.