Vuam, tseem hu ua vuam lossis vuam, yog cov txheej txheem tsim khoom thiab thev naus laus zis uas siv cov cua sov, qhov kub thiab txias los yog siab los koom nrog cov hlau lossis lwm yam khoom siv thermoplastic xws li cov yas. Raws li lub xeev ntawm cov hlau hauv cov txheej txheem vuam thiab cov yam ntxwv ntawm cov txheej txheem, cov txheej txheem vuam tuaj yeem muab faib ua peb pawg: fusion vuam, siab vuam thiab brazing.
Fusion welding - cua sov lub workpieces yuav tsum tau koom ua kom lawv ib nrab yaj los ua ib tug molten pas dej ua ke, thiab lub molten pas dej ua ke yog txias thiab solidified ua ntej koom. Yog tias tsim nyog, cov fillers tuaj yeem muab ntxiv los pab
1. Laser vuam
Laser welding siv lub teeb tsom teeb laser ua lub zog los foob pob ua haujlwm nrog cua sov rau vuam. Nws tuaj yeem txuas ntau yam ntaub ntawv hlau thiab cov ntaub ntawv tsis yog hlau xws li carbon steel, silicon steel, aluminium thiab titanium thiab lawv cov alloys, tungsten, molybdenum thiab lwm yam hlau refractory thiab cov hlau sib txawv, nrog rau ceramics, iav thiab yas. Tam sim no, nws tsuas yog siv hauv cov cuab yeej hluav taws xob, aviation, aerospace, nuclear reactors thiab lwm yam. Laser vuam muaj cov yam ntxwv hauv qab no:
(1) Lub zog ceev ntawm lub laser beam yog siab, cov txheej txheem cua sov yog luv heev, cov pob qij txha yog me me, lub tshav kub-cuam tshuam cheeb tsam yog nqaim, vuam deformation yog me me, thiab qhov tseeb qhov tseeb ntawm qhov vuam yog siab;
(2) Nws tuaj yeem vuam cov ntaub ntawv uas nyuaj rau vuam los ntawm cov txheej txheem vuam, xws li vuam refractory hlau xws li tungsten, molybdenum, tantalum, thiab zirconium;
(3) Cov hlau tsis-ferrous tuaj yeem raug welded hauv huab cua yam tsis muaj roj tiv thaiv ntxiv;
(4) Cov khoom siv yog qhov nyuaj thiab tus nqi siab.
2. Gas vuam
Gas vuam yog tsuas yog siv nyob rau hauv lub vuam ntawm nyias steel daim hlau, uas tsis muaj melting point cov ntaub ntawv (non-ferrous hlau thiab lawv alloys), cam khwb cia hlau qhov chaw thiab hard alloy cov cuab yeej, raws li zoo raws li kho welding ntawm hnav thiab scrapped qhov chaw, nplaim taws kho cov khoom. deformation, thiab lwm yam.
3. Arc vuam
Yuav muab faib ua phau ntawv arc vuam thiab submerged arc vuam
(1) Kev tuav arc vuam tuaj yeem ua tau ntau txoj haujlwm vuam xws li vuam vuam, ntsug vuam, kab rov tav vuam thiab nyiaj siv ua haujlwm vuam. Tsis tas li ntawd, vim hais tias cov khoom siv vuam arc yog txav tau yooj yim thiab hloov tau yooj yim hauv kev tuav, vuam kev ua haujlwm tuaj yeem ua tau nyob rau hauv txhua qhov chaw nrog lub zog. Haum rau vuam ntawm ntau yam khoom hlau, ntau yam thicknesses thiab ntau yam qauv duab;
(2) Submerged arc vuam feem ntau tsuas yog tsim nyog rau txoj haujlwm vuam tiaj tus, thiab tsis haum rau vuam nyias daim hlau nrog lub thickness tsawg dua 1 hli. Vim qhov tob tob ntawm submerged arc vuam, kev tsim khoom siab thiab qib siab ntawm kev ua haujlwm, nws yog qhov tsim nyog rau vuam ntev welds ntawm nruab nrab thiab tuab phaj qauv. Cov ntaub ntawv uas tuaj yeem welded los ntawm submerged arc welding tau tsim los ntawm cov qauv hlau rau cov hlau tsis tshua muaj hlau, stainless hlau, cov hlau tsis muaj cua sov, thiab lwm yam, nrog rau qee yam hlau tsis muaj hlau, xws li npib tsib xee-raws li alloys, titanium. alloys, thiab tooj liab alloys.
4. Gas vuam
Arc welding uas siv cov pa sab nraud raws li qhov nruab nrab arc thiab tiv thaiv arc thiab vuam cheeb tsam yog hu ua gas shielded arc vuam, los yog roj welding luv luv. Gas hluav taws xob vuam feem ntau yog muab faib ua cov tsis-melting electrode (tungsten electrode) inert gas shielded welding thiab melting electrode gas shielded vuam, oxidizing mixed gas shielded vuam, CO2 roj shielded vuam thiab tubular hlau gas shielded vuam raws li seb cov electrode yog molten los yog tsis yog thiab shielding gas yog txawv.
Ntawm lawv, cov uas tsis yog-melting tsis tshua muaj siab inert roj shielded vuam siv tau rau vuam yuav luag tag nrho cov hlau thiab alloys, tab sis vim nws cov nqi siab, nws feem ntau yog siv rau vuam non-ferrous hlau xws li txhuas, magnesium, titanium thiab tooj liab, xws li txhuas, magnesium, titanium thiab tooj liab. zoo li stainless hlau thiab kub-resistant steel. Ntxiv rau qhov tseem ceeb ntawm cov khoom siv hluav taws xob uas tsis yog-melting electrode gas shielded vuam (tuaj yeem welded hauv ntau txoj haujlwm; haum rau vuam ntawm cov hlau feem ntau xws li cov hlau tsis-ferrous, stainless hlau, cua sov-resistant steel, carbon steel, thiab alloy steel) , nws kuj Nws kuj muaj qhov zoo ntawm vuam ceev thiab ntau dua deposition efficiency.
5. Plasma arc vuam
Plasma arcs yog dav siv nyob rau hauv vuam, painting thiab surfacing. Nws tuaj yeem welding thinner thiab thinner workpieces (xws li vuam ntawm cov hlau nyias nyias hauv qab 1 hli).
6. Electroslag vuam
Electroslag welding tuaj yeem welding ntau yam carbon structural steels, low-alloy high-strength steels, heat-resistant steels and medium-alloy steels, and has been widely used in the manufacturing of boilers, pressure vessels, heavy machinery, metallurgical equipment and ships. Tsis tas li ntawd, electroslag vuam tuaj yeem siv rau thaj chaw loj thiab kho vuam.
7. Electron beam vuam
Electron beam vuam cov cuab yeej yog qhov nyuaj, kim, thiab yuav tsum muaj kev saib xyuas siab; kev sib dhos yuav tsum tau ntawm weldments yog siab, thiab qhov loj yog txwv los ntawm qhov loj ntawm lub tshuab nqus tsev chamber; X-ray yuav tsum muaj kev tiv thaiv. Electron beam welding tuaj yeem siv los vuam feem ntau cov hlau thiab alloys thiab workpieces xav tau me me deformation thiab zoo. Tam sim no, electron beam vuam tau siv dav hauv cov cuab yeej ntsuas, ntsuas thiab hluav taws xob kev lag luam.
Brazing-Siv cov khoom siv hlau nrog lub ntsiab lus qis dua li cov hlau hauv lub hauv paus, siv cov kua nplaum los ntub cov hlau hauv paus, sau qhov sib txawv, thiab cuam tshuam nrog lub hauv paus hlau kom paub txog kev sib txuas ntawm cov vuam.
1. Nplaim brazing:
Nplaim brazing yog tsim rau brazing ntawm cov ntaub ntawv xws li carbon steel, cam khwb cia hlau, tooj liab thiab nws alloys. Cov nplaim hluav taws oxyacetylene yog cov nplaim hluav taws uas siv ntau.
2. Kev tiv thaiv brazing
Resistance brazing muab faib ua cua sov ncaj qha thiab tsis ncaj qha cua sov. Indirect cua sov tsis kam brazing yog tsim rau brazing ntawm weldments nrog loj sib txawv ntawm thermophysical zog thiab loj sib txawv ntawm thickness. 3. Induction brazing: Induction brazing yog tus cwj pwm los ntawm cov cua kub ceev, kev ua haujlwm siab, cua sov hauv zos, thiab yooj yim automation. Raws li txoj kev tiv thaiv, nws tuaj yeem muab faib ua induction brazing hauv huab cua, induction brazing hauv shielding roj thiab induction brazing hauv lub tshuab nqus tsev.
Siab vuam - cov txheej txheem vuam yuav tsum ua kom lub zog ntawm qhov vuam, uas tau muab faib ua cov vuam vuam thiab ultrasonic vuam.
1. Tsis kam vuam
Muaj plaub qhov tseem ceeb ntawm kev siv vuam, uas yog qhov chaw vuam, seam vuam, qhov projection vuam thiab taub qab vuam. Spot welding yog tsim rau stamped thiab dov nyias phaj cov neeg tuaj yeem sib tshooj, cov pob qij txha tsis xav tau airtightness, thiab lub thickness yog tsawg dua 3 hli. Seam welding yog dav siv nyob rau hauv daim ntawv vuam ntawm cov roj nruas, cov kaus poom, radiators, aircraft thiab tsheb roj tso tsheb hlau luam. Projection welding yog tsuas yog siv rau vuam stamping qhov chaw ntawm cov pa roj carbon tsawg thiab cov hlau tsis tshua muaj hlau. Qhov zoo tshaj plaws thickness rau phaj projection vuam yog 0.5-4mm.
2. Ultrasonic vuam
Ultrasonic vuam yog nyob rau hauv txoj cai haum rau vuam feem ntau thermoplastics.
Post lub sij hawm: Mar-29-2023
