Cov Ntsiab Lus Tseem Ceeb: Muab qhov tseem ceeb ntawm kev khoov txias ua raws li TIG vuam. Ua kom nruj tswj kev sib kis thiab tiv thaiv oxidation thoob plaws hauv cov txheej txheem, thiab xyuas kom tsis muaj cua sov nkag. Thaum lub sij hawm khoov, tsom rau qhov txo qis springback thiab ua kom muaj kev sib tw. Rau vuam, ua qhov tseem ceeb ntawm argon shielding thiab huv. Thaum ua haujlwm nrognyias titanium raj, nws yog ib qho tseem ceeb tshwj xeeb uas yuav tsum tau ua raws li cov hauv paus ntsiab lus ntawm "tsawg ceev, maj mam clamping, argon purging, thiab qeeb vuam."
Titanium Tube Vuam (TIG vuam yog nyiam; kev tu kom huv yog yuav tsum tau ua ua ntej vuam)
1. Ua ntej-welding Preparation (Critical to Success)
Cov khoom sib txuam: Siv ERTi-2 vuam hlau rau TA2 ntshiab titanium raj thiab ERTi-5 vuam hlau rau TC4 titanium alloys. Kev siv cov hlau tsis sib xws yog txwv nruj heev los tiv thaiv embrittlement.
Kev Tu Cov Qauv: Qhov zawj thiab qhov 50 hli ntawm ob sab yuav tsum tau ua ntej yuav tsum tau ua haujlwm hauv av kom muaj xim zoo nkauj -dawb xim hlau, tom qab ntawd degreased nrog acetone lossis anhydrous ethanol; hnav hnab looj tes dawb huv los tiv thaiv kev kis kab mob los ntawm cov roj lossis roj.
Argon Requirements: Purity Ntau dua lossis sib npaug rau 99.995% (qib 4N), cov dej noo tsawg dua lossis sib npaug li 50 mg / m³; Cov me me - txoj kab uas hla (φ Tsawg dua lossis sib npaug li 10 hli) yuav tsum tau ntim nrog argon rau kev tiv thaiv sab hauv; muab ob qho tib si xaus nrog cov ntawv soluble, ua ntej- sau rau 10-15 feeb kom huv si huab cua, thiab tuav lub siab zoo.
Kev tswj ib puag ncig: Huab cua tshaj tawm Tsawg dua lossis sib npaug li 2 m / s, av noo <60%; kom tsis txhob muaj cua cuam tshuam los ntawm kev tiv thaiv roj; thaum kub qis (< 5 °C), preheat the workpiece to 50–100 °C.
2. Cov ntsiab lus tseem ceeb ua haujlwm (tiv thaiv Oxidation thiab Distortion)
Striking and Extinguishing the Arc: Tsis txhob ntaus lub arc rau sab nrauv ntawm cov yeeb nkab; siv siab -frequency arc tawm tsam. Thaum tua cov arc, maj mam txo qhov tam sim no thiab maj mam tshem cov vuam hlau nyob rau hauv argon shielding kom tsis txhob muaj qhov kub ntawm - kub oxidation.
Torch Movement: Txav lub teeb rau hauv txoj kab ncaj nraim tsis muaj oscillation, los yog nrog tsawg oscillation Tsawg dua los yog sib npaug li 3 hli; khaws cov vuam hlau nyob hauv thaj tsam argon shielding txhua lub sijhawm, thiab xyuas kom lub hau tsis tawm ntawm cov roj thaiv.
Tacking: Tacking seam ntev: 5-10 mm; nrug: 100-150 mm; qhov siab tsawg dua los yog sib npaug li 2/3 ntawm phab ntsa thickness. Ua raws li cov txheej txheem ib yam li rau lub ntsiab weld. Tshawb xyuas qhov tsis xws luag tom qab tacking ua ntej mus rau tag nrho kev nkag mus vuam.
Tom qab- kev kho vuam: tso cai rau kom txias txias rau hauv chav sov, tom qab ntawd yaug nrog dej huv kom tshem tawm cov roj argon seem; Yog hais tias oxidation discoloration (daj / xiav) yog tam sim no, kua qaub ntxuav nrog ib tug 3% HF + 35% HNO₃ tov, ces grind kom txog thaum ib tug silver - dawb tiav tiav.
3. Cov ntsiab lus tseem ceeb rau kev khoov thiab vuam (khoov-Ua ntej, Weld-Tom qab Sequence)
Weld Qhov Chaw: Lub vuam yuav tsum nyob deb ntawm qhov khoov cheeb tsam, ntawm qhov deb ntawm Ntau dua lossis sib npaug li 100 hli los ntawm qhov pib ntawm qhov khoov thiab Ntau dua lossis sib npaug li 1 npaug ntawm cov yeeb nkab txoj kab uas hla, txhawm rau tiv thaiv cov cua sov los ntawm vuam los ntawm kev cuam tshuam qhov khoov thiab ua rau deformation lossis tawg.
Ncej -Vuam Txoj Kev Ncaj Ncees: Yog tias yuav tsum tau hloov kho me me rau lub kaum sab xis tom qab vuam, qhov ncaj yuav tsum tau ua ntawm qhov kub qis (tsawg dua lossis sib npaug li 200℃). Siab - kub kub dabtsi yog khoov yog nruj me ntsis txwv tsis pub cov nplej coarsening.
Kev Nyuaj Siab: Rau tuab-walled (＞1.5 hli) khoov thiab welded Cheebtsam, ua kev ntxhov siab-relief annealing ntawm 200-300℃tom qab vuam los txo qhov kev pheej hmoo ntawm deformation tom ntej.
E-mail:garychen3215@hotmail.com
Chaw nyob: No.35, Baoti Rd, Baoji nroog, Shaanxi Province, Suav
Hu rau: Mr. Gary Chen
Xov tooj: +86-917-8883215
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