Kev Tshawb Fawb Txog TIG Vuam Txheej Txheem Thiab Kev Tswj Xyuas Tshuab Zoo Ntawm Titanium Alloy

Tungsten Inert Gas (TIG) vuam boasts ruaj khov hluav taws xob arc, controllable tshav kub input, me me vuam deformation thiab txhim khu kev qha shielding nyhuv, yog li ua tus tseem ceeb vuam txoj kev rau titanium alloys.

 

 

 

 

 

1.Core txheej txheem yam ntxwv

Titanium alloy phau ntawv / tsis siv neeg TIG suits nyias -phab ntsa (tsawg dua los yog sib npaug li 3 hli) thiab precision qhov chaw. Argon shielding thaiv huab cua; concentrated cua sov nqaim HAZ, eases molten pas dej ua ke tswj kom txiav deformation thiab grain coarsening.

Spatter-dawb du welds yuav tsum tsis muaj kev sib tsoo, tuav lub hauv paus hlau lub zog thiab corrosion kuj rau siab -kev ntseeg siab precision workpieces.

2. Lub ntsiab vuam nyuaj

Titanium absorbs hydrogen ntawm 250 degree, nitrogen ntawm 400 degree, thiab undergoes oxidation hnyav ntawm 600 degree. Lub generated brittle compounds txo cov plasticity thiab toughness ntawm welds thiab ua rau brittle puas.

 

Cov nplej hauv welds thiab cua sov- cov cheeb tsam cuam tshuam loj tuaj, txo qis zog ntawm cov pob qij txha.

Kev siv vuam tsis raug yooj yim ua rau muaj qhov tsis xws luag xws li qhov pores, nkag tsis tiav thiab cov kab nrib pleb, uas nyuaj rau kev kuaj xyuas.

 

 

1.Pre-welding Preparation

Cov khoom siv tu: Sib tsoo cov nplais oxide ntawm qhov zawj thiab thaj chaw hauv 20 hli ntawm ob sab ntawm cov tshuab, tom qab ntawd so nrog cov dej tsis muaj dej ethanol lossis acetone thiab cua- qhuav. Vuam yuav tsum tau ua tsis pub dhau 4 teev tom qab ntxuav kom tsis txhob muaj cov kab mob sib kis uas ua rau lub qhov hws thiab suav nrog.

 

• Vuam muab tub lim: Xaiv qhov sib txuam titanium muab tub lim hlau raws li qhov sib npaug - lub zog thiab homogeneous cov ntsiab lus. Yog hais tias tshwj xeeb muab tub lim hlau tsis muaj, txiav strips los ntawm tib batch ntawm lub hauv paus hlau; Nws txwv tsis pub sib xyaw cov khoom sib txawv ntawm cov xov hlau.
• Shielding gas: High-purity argon nrog purity Ntau dua los yog sib npaug li 99.995% yog saws, nruab nrog ib tug trailing shield los muab tag nrho kev tiv thaiv rau hluav taws xob arc, molten pas dej ua ke thiab siab - kub cheeb tsam, tiv thaiv oxidation embrittlement ntawm high -temperature.
• Cov cuab yeej cuab tam: Debug siab - zaus arc tawm tsam DC TIG vuam tshuab. Fasten workpieces nrog cov cuab yeej kom nruj tswj lub pob tw clearance thiab misalignment; rigidly kho nyias- cov phab ntsa kom txo qis deformation.

 

2.Control ntawm vuam txheej txheem tsis

• Tam sim no thiab voltage: Rau nyias daim hlau ntawm 0.5-2 hli, tsis tshua muaj tam sim no ntawm 30-100 A thiab luv luv arc voltage ntawm 8-12 V tau txais yuav los txo cov cua nkag.
• Vuam ceev thiab xaim pub mis: Weld ntawm qhov ceev ntawm 80-150 mm / min; pub muab tub lim hlau tsis tu ncua ntawm lub kaum sab xis ntawm 10℃-15℃nrog cov khoom ua haujlwm, thiab khaws cov hlua hlau hauv qhov chaw tiv thaiv argon txhua lub sijhawm.
• Gas flow rate: Pem hauv ntej shielding gas flow rate: 8-15 L / min; rov qab shielding gas ntws tus nqi: 6-10 L / min. Cov dej ntws tsis zoo ua rau kev tiv thaiv tsis ua haujlwm.
• Interlayer kub: Tswj interlayer kub hauv qab 100℃los tiv thaiv tshav kub los ntawm deteriorating sib koom toughness.

 

3. Tshaj tawm -weld Crater kho thiab txias

Siv txoj kev lwj tam sim no los sau cov craters tag nrho thaum lub sij hawm arc txiav kom tsis txhob crater tawg thiab shrinkage kab noj hniav. Khaws cov khoom siv argon tom qab arc tawg kom txog thaum lub vuam txias qis dua 200℃ua ntej txiav cov roj. Txias workpieces ib txwm mus rau chav tsev kub; dej txias thiab yuam cua txias yog nruj me ntsis txwv tsis pub kom tsis txhob muaj kev ntxhov siab sab hauv thiab microcracks.

 

 

1.Oxidation discoloration

Ua rau: Cov argon tsis huv, tiv thaiv tsis zoo, qhov chaw qias neeg, kev txiav roj thaum ntxov - tawm

Cov nyhuv: Txo toughness & corrosion kuj

Kho: 99.995% + ntshiab argon, trailing shields, ua ntej - huv si, ncua ncej-weld gas

 

2.Pov

Ua rau: Roj / noo noo, roj tsis ruaj khov, vuam ceev ceev

Cov nyhuv: Tsawg ceev & load peev

Kho: Qhuav cov ntaub ntawv huv, khov kho argon ntws, qeeb mus ncig ceev

 

3. Weld tawg

Ua rau: Unfilled craters, overheat input & interpass temp

Cov nyhuv: Risk ntawm qhov tawg

Kho: Tam sim no ramp- nqes rau craters, tswj cua sov / temp, symmetrical vuam, preheat tuab daim hlau

 

4.Incomplete penetration & slag inclusions

Ua rau: Tsis tshua muaj tam sim no, ceev ceev, qhov tsis zoo / qhov sib txawv, tsis ruaj khov xaim pub, seem slag

Cov nyhuv: Ncua poob hauv weld lub zog

Txhim kho: Txhim kho qhov tsis zoo, ua qauv zawj / qhov sib txawv, cov xaim tsis tu ncua, tshem tawm lub sijhawm slag

 

 

1. Pre-Weld

• Txheeb xyuas cov ntaub ntawv pov thawj & cov ntaub ntawv kuaj cov qauv; pov tseg cov khoom tsis raug.
• Tsis tu ncua calibrate welders; xyuas cov khoom siv roj cua airtightness.
• Tsim nyog cov txheej txheem vuam los ntawm tuab thiab ua cov txheej txheem kev ua haujlwm.
• Weld sab hauv tsev ntawm ntau dua lossis sib npaug li 5 degree, qhuav, huv & tsis muaj cua; tsis muaj plua plav / cua ua haujlwm sab nraum zoov.

2. Vuam txheej txheem

• Cov kws tshaj lij uas tau lees paub ua raws li cov kev txwv nruj nruj nrog kev saib xyuas lub sijhawm tiag tiag.
• Nres ua haujlwm los kho oxidation lossis roj tsis ua haujlwm tam sim.
• Ntxuav interlayer slag thiab tswj qhov kub ntawm interpass.
• Khaws tag nrho cov ntaub ntawv kom zoo traceability.

 

3. Tshaj tawm -Weld Txais

• Welds yuav tsum du, tawg / oxidation / hlawv -los ntawm / undercut -dawb thiab dimensionally raws.
• Txheem UT & RT tshuaj xyuas; ntxiv PT rau siab -qhov tseeb.
• Khiav tensile, khoov thiab cuam tshuam kev ntsuam xyuas los xyuas kev sib koom ua ke ntawm kev sib koom ua ke

 

Ruihang, raws li ib tug ncaj qha chaw tsim tshuaj paus ntawm titanium cov khoom, muab kev pom zoo raw cov ntaub ntawv rau koj precision Cheebtsam ntau lawm. Yog tias koj muaj kev xav tau kev yuav khoom rau titanium alloy khoom, thov koj xav tiv tauj peb ntawm email:Sam.Rui@bjrh-titanium.com