Titanium tubing yog zoo ib yam li lwm yam hlau, tus cwj pwm shrinkage ntawm titanium tubing thaum lub sij hawm casting kuj tau hloov los ntawm cov kua hauv lub xeev mus rau solidified lub xeev thiab ces mus rau lub xeev ruaj khov, thiab qhov shrinkage cwj pwm no feem ntau muab faib ua lub cev shrinkage thiab kab shrinkage. Lub cev shrinkage qhia tag nrho cov ntim ntawm titanium raj casting txheej txheem hloov, vim hais tias tag nrho cov ntim ntawm lub cev shrinkage yog sib npaug zos rau qhov ntim ntawm casting concentrated shrinkage ntxiv rau lub ntim ntawm shrinkage, yog li mus rau lub alloy casting txheej txheem solidification shrinkage tus cwj pwm muaj feem xyuam rau lub alloy lub cev. shrinkage, txiav txim siab lub titanium alloy shrinkage, shrinkage thiab loosening defects yam ntxwv, rau kev nkag siab ntawm titanium raj shrinkage thiab loosening defects ntawm tsim ntawm ib tug tseem ceeb qhov tseem ceeb.
Cov yam tseem ceeb uas cuam tshuam rau kev ua kom muaj zog ntawm cov titanium raj muaj xws li cov ntsiab lus alloying, cov khoom siv casting thiab cov qauv casting. Txij li thaum cov ntsiab lus alloying cuam tshuam rau lub crystallization kub lub caij nyoog ntawm titanium raj, ib yam li lawv cov nyhuv ntawm fluidity, lub solidification shrinkage ntawm titanium hlab nyob rau hauv lub xub ntiag ntawm cov yam ntxwv ntawm cov ntxiv alloying ntsiab, piv txwv li qhov loj ntawm crystallization kub lub sij hawm tsim ntawm titanium thiab lub alloying ntsiab. Eutectic titanium raj nrog nqaim crystallization kub lub caij muaj fluidity zoo thiab yog nquag tsim cov concentrated shrinkage, thaum titanium hlab nrog wide crystallization kub intervals muaj tsis zoo fluidity thiab yog nquag tsim dispersed shrinkage, piv txwv li, shrinkage.
Raws li titanium raj muaj cov khoom zoo ntawm lub cev, raws li cov khoom siv zoo heev, nws tuaj yeem sib tw nrog stainless hlau, nickel alloy daim ntaub ntawv: nyob rau hauv ntau qhov chaw ntawm lub teb chaws kev lag luam, vim yog siv cov titanium raj, txhim kho cov khoom lub neej, txhim kho cov khoom. kev cia siab thiab kev tsim khoom ntawm cov cuab yeej siv, ua kom cov txheej txheem ua haujlwm, txhim kho kev ua haujlwm, tag nrho cov no, tau txais txiaj ntsig tseem ceeb ntawm kev lag luam.
