Acid Pickling txheej txheem rau titanium thiab titanium alloy cov ntaub ntawv

Thaum tsim titanium thiab titanium alloy cov ntaub ntawv, ib qho ntawm cov kauj ruam tseem ceeb tshaj plaws yog tshem tawm cov nplai oxide. Acid pickling yog thawj txoj hauv kev kom ua tiav qhov no, thiab nws txoj kev vam meej yog nyob ntawm kev ua tib zoo npaj thiab tswj cov txheej txheem.

Ua ntej pib txheej txheem pickling, nws yog ib qho tseem ceeb rau ua ntej - kho cov ntaub ntawv titanium. Qhov no tuaj yeem suav nrog txoj hauv kev xws li molten alkaline ntxuav, mechanical scale breaking, lossis sandblasting. Cov kev kho ua ntej no pab tshem tawm cov av thiab cov oxide tuab, ua kom lub ntsej muag huv si thiab ua kom zoo rau cov txheej txheem titanium forging tom ntej. Kev kho kom zoo ua ntej-kev kho mob tsis yog tsuas yog txhim kho qhov zoo ntawm titanium tab sis kuj txhim kho cov txiaj ntsig ntawm cov txheej txheem acid pickling.

Rau titanium cov ntaub ntawv nrog lub teeb oxide txheej, tshwj xeeb tshaj yog cov tsim ntawm kub qis dua 600 degree, acid pickling yog ib txoj kev zoo heev rau kev tshem tawm. Thaum lub sijhawm txheej txheem no, titanium cuam tshuam nrog cov kua qaub, uas ua rau cov nplai oxide thiab tsim cov hlau ions. Txawm li cas los xij, kua qaub pickling tsis yog ib qho tshuaj tiv thaiv ncaj qha xwb - nws kuj muaj qhov tshwm sim ntawm electrochemical. Kev saib xyuas tshwj xeeb yuav tsum tau them rau qhov txo qis ntawm hydrogen ions hauv cov kua qaub, tshwj xeeb tshaj yog thaum nws muaj hydrofluoric acid lossis fluoride-raws li cov tebchaw.

Yog hais tias hydrogen ions raug txo mus rau atomic los yog molecular hydrogen, lawv yuav diffuse rau hauv cov hlau, ua rauhydrogen embrittlement. Qhov no tuaj yeem cuam tshuam qhov kev ua tau zoo thiab kev ua haujlwm ntev ntawm cov ntaub ntawv titanium. Yog li ntawd, ua tib zoo saib xyuas cov kua qaub kua qaub muaj pes tsawg leeg thiab qhov sib piv yog qhov tseem ceeb heev.

Txhawm rau tiv thaiv hydrogen embrittlement, qhov piv ntawm nitric acid rau hydrofluoric acid yuav tsum nco ntsoov khaws cia siab tshaj 5: 1. Qhov no yog qhov tseem ceeb rau kev tswj hwm qhov sib npaug ntawm kev tshem tawm oxide zoo thiab txo qhov kev pheej hmoo ntawm hydrogen paug. Txawm li cas los xij, nws yog ib qho tseem ceeb kom tsis txhob siv cov nitric acid ntau dhau, vim qhov no tuaj yeem ua rau qeeb cov tshuaj tiv thaiv, txo cov khoom siv hluav taws xob, thiab tsim cov pa phem, ua rau cov txheej txheem ua haujlwm nyuaj.

Ntxiv nrog rau acid muaj pes tsawg leeg, yam xws li kub thiab pickling lub sij hawm kuj yuav tsum tau ua tib zoo saib xyuas. Yog tias qhov kub thiab txias dhau los yog cov txheej txheem ntev dhau lawm, cov ntaub ntawv titanium tuaj yeem raug kev txom nyem los ntawm ntau tshaj - corrosion, uas cuam tshuam tsis zoo rau saum npoo thiab cov khoom siv tag nrho. Kho cov txheej txheem pickling raws li hom, tuab, thiab oxide txheej hnyav ntawm cov khoom yog qhov tseem ceeb rau kev ua tiav cov txiaj ntsig zoo.

Acid pickling txheej txheem rautitanium thiab titanium alloysyog ob qho tib si complex thiab ilv. Los ntawm kev tswj hwm cov kua qaub, kev sib piv, thiab kev ua haujlwm tsis zoo, cov tuam ntxhab tuaj yeem ua tiav cov txiaj ntsig xav tau thaum zam kev puas tsuaj rau cov khoom siv titanium.

Yog koj tab tom nrhiavsiab - zoo titanium barslos yog xav kawm ntxiv txogtitanium forging, mus saib pebTitanium Bar khoom ntawm no. Peb cov khoom ua tau raws li cov qauv nruj kom ntseeg tau tias koj tau txais kev ua tau zoo tshaj plaws, ua haujlwm ntev, thiab kev ntseeg siab.