Ntau lub ntsiab lus tseem ceeb hauv kev lag luam aerospace thiab tub rog ua haujlwm nyob rau hauv qhov kub thiab txias, thiab muaj kev cuam tshuam ntawm thermal, mechanical, thiab chemical processes, ua rau mob hnyav thiab hnav. Yog li ntawd, qhov zoo hnav thiab ablation tsis kam ntawm tantalum hlab ntawm qhov kub thiab txias tau dhau los ua qhov tseem ceeb ntawm kev lag luam kev lag luam.
Hnav thiab ablation yog cov khoom siv puas tsuaj tshwm sim los ntawm kev cuam tshuam ntawm thermodynamic, mechanical, thiab chemical processes. Lawv yog cov ntaub ntawv tseem ceeb ntawm cov khoom tsis ua hauj lwm ntawm tantalum hlab nyob rau hauv huab cua kub. Kev sib txhuam thiab hnav cov ntaub ntawv tantalum ntawm qhov kub thiab txias yog qhov hnyav dua. nyuaj dua. Nyob rau hauv cov xwm txheej ntawm hnav thiab hlawv tswm ciab, cov khoom poob, cov tshuaj lom neeg muaj pes tsawg leeg hloov pauv, kev tsim cov txheej txheem cua sov, thiab cov nplaim tawg tau tshwm sim tsis tu ncua ntawm qhov chaw ua haujlwm. Kev puas tsuaj hauv cheeb tsam ntawm qhov kawg yuav ua rau tsis ua haujlwm ntawm tag nrho cov khoom ua haujlwm, ua rau muaj kev puas tsuaj loj thiab kev lag luam poob. Txawm ua rau muaj kev hem thawj.
Tam sim no, cov kev daws teeb meem tseem ceeb rau cov teeb meem ntawm kev hnav tsis kam thiab kev tiv thaiv ablation yog kev npaj cov txheej txheem tiv thaiv, thiab chrome plating yog tib txheej txheej txheej txheem uas tuaj yeem siv rau ntawm qhov loj hauv tsev thiab txawv teb chaws. Txawm li cas los xij, nyob rau hauv qee qhov kev ua haujlwm hnyav, qhov kub ntawm qhov chaw ua haujlwm yog siab li 2200-3500 degrees Celsius, kwv yees li ib feem tsib ntawm cov cua sov yog nqus los ntawm cov khoom siv ua haujlwm, thiab lub sijhawm ua haujlwm thermal yog 10 microseconds. Lub tshav kub ntawm qhov chaw ntawm lub workpiece yog lig dhau mus rau sab nraud, thiab muaj qhov kub thiab txias gradient, thiab qhov tshwm sim ntawm thermal stress yuav ua rau cov chromium txheej poob.
Tsis tas li ntawd, qhov kub thiab txias kuj tseem ua rau cov tshuaj lom neeg sib cuam tshuam ntawm cov pa roj reactive nrog cov hlau ntawm qhov chaw ua haujlwm, uas ua rau muaj qhov qis-melting point hlau oxides, uas ntxiv rau lub melting ntawm thaj chaw ntawm lub workpiece nto. Lub melted cheeb tsam yuav maj mam tev tawm nyob rau hauv lub yaig ntawm cov roj thiab mechanical hnav, thiab ablative hnav no ntau zaus sai dua li ib txwm hnav. Nyob rau tib lub sijhawm, chromium muaj zog dua thiab brittleness, thiab qis shear thiab tensile zog. Yog li ntawd, nws yog ib qho nyuaj rau chromium coatings kom tau raws li qhov uas twb muaj lawm hnav thiab ablation yuav tsum tau, thiab nws yog imminent los tsim coatings nrog kev ua tau zoo dua.
Tantalum (Ta), ib tug hlau, yog dominated los ntawm lub cev-centered cubic a-theem qauv, thiab nws melting point yog hais txog 2996 degree C, thib ob tsuas yog carbon, europium, rhenium thiab osmium. Lub elastic modulus ntawm tantalum zoo ib yam li cov hlau, thiab nws muaj zoo conductivity thiab ductility. Tsis tas li ntawd, tantalum muaj cov hlau ua haujlwm tsawg thiab muaj kev tiv thaiv corrosion siab, thiab ntau cov kua qaub tsis tuaj yeem raug corroded ntawm chav tsev kub (tshwj tsis yog hydrogen fluoride thiab oleum). Nyob rau tib lub sijhawm, tantalum kuj muaj biocompatibility zoo thiab hnav tsis kam. Tam sim no, tantalum hlau tau siv ntau yam xws li kev kho mob, aerospace, thiab tub rog kev lag luam, tshwj xeeb tshaj yog nyob rau hauv aerospace thiab tub rog teb.
Covtantalum cevtsim los ntawm Baoji Yusheng Hlau Technology Co., Ltd. muaj cov khoom zoo siab kub, uas tuaj yeem ua tau raws li qhov xav tau ntawm kev hnav thiab ablation. Lub neej ua haujlwm, txuag cov peev txheej, thiab tib lub sijhawm tuaj yeem tau txais txiaj ntsig zoo ntawm kev lag luam thiab kev ruaj ntseg lav.
