Titanium thiab Titanium Alloys yog cov khoom siv zoo rau kev siv vuam

Titanium thiab titanium alloys yog cov ntaub ntawv zoo rau kev siv vuam vim lawv cov oxide zaj duab xis yaj yooj yim ntawm qhov kub thiab txias. Thaum siv cov kua diffusion bonding, ib txheej ntawm lwm cov hlau yuav tsum tau muab tso rau ntawm qhov sib txuas ntawm titanium nto. Feem ntau, cov hlau no tuaj yeem tsim qhov qis melting point eutectic nrog titanium. Thaum lub sij hawm cua sov theem ntawm brazing, qhov ntws ntawm cov kua hlau mus rau hauv qhov haum yog tsis xwm yeem. Nyob rau theem tom qab, cov kua txheej diffuses mus rau hauv lub hauv paus hlau, cia lub weld kom solidify tag ua ntej kawg ntawm lub thermal voj voog.

Nyob rau hauv xyoo tas los no, daim ntawv thov ntawm diffusion vuam raws li kev koom tes rau titanium thiab nws cov alloys tau nyiam kev txaus siab. Solid-state welding muaj cov kev txwv hauv qab no: qhov saum npoo yuav tsum tau xyaum ua kom pom tseeb; diffusion yuav tsum tshwm sim ntawm qhov kub txaus kom tsis txhob cuam tshuam cov khoom ntawm cov hlau, yog li diffusion qeeb heev. Cov kua diffusion vuam tsim cov yeeb yaj kiab ua kua tsis ruaj khov ntawm qhov sib cuam tshuam, uas txo qhov kev haum ntawm qhov tseeb thiab tseem ua kom cov txheej txheem diffusion.

Txij li thaum siab dua interfacial pressures thiab yas deformation ntawm qhov kub thiab txias txaus siab rau cov khoom sib koom ua ke, qee zaum muaj peev xwm txuas cov kab ke no nrog cov txheej txheem kub ua haujlwm uas txo cov ntu ntu ntawm cov khoom. Rolling diffusion koom nrog yog ib qho piv txwv. Hauv cov txheej txheem no, titanium alloy qhov chaw tau tuav hauv lub plhaub titanium, uas tau khiav tawm thiab kaw rau hauv pwm. Hom welded no yog tus cwj pwm los ntawm lub zog zoo, plasticity thiab corrosion kuj, tab sis qhov nyuaj yog qhov zoo thiab cov txheej txheem tsis yooj yim los tswj thiab tuaj yeem cuam tshuam qhov tseeb ntawm qhov khoom. Lwm qhov nyuaj yog tias cov pob qij txha hauv lub xeev zoo li qub yuav tsum tau ua hauv argon lossis lub tshuab nqus tsev.
Titanium bar thiab titanium phaj vuam txheej txheem:

(1) Titanium welding tuaj yeem tiv tauj qhov chaw vuam, seam vuam, argon arc vuam, plasma vuam thiab electron beam vuam thiab lwm yam thev naus laus zis.

(2) Nws feem ntau lees txais tias cov khoom lag luam ntshiab titanium thiab qee qhov tsis tshua muaj zog titanium alloys yog weldable, tab sis lub zog siab dua titanium alloys tsis zoo tagnrho vim qhov txo qis hauv plasticity tom qab vuam.

(3) Titanium tsis tuaj yeem welded rau lwm cov hlau los ntawm cov txheej txheem fusion vuam ib txwm vim nws yuav tsim cov hlau sib txuas uas tsim cov nkig heev.