Purple Tooj Liab Yeeb Thiab Yuav Ua Li Cas Thiaj Ua Cov Yeeb Nkab Tooj Liab Yeeb? Dab tsi yog tooj liab tubing? Yuav ua li cas Weld cov paj liab tooj liab? Purple Tooj Liab yog ib qho ntawm peb cov yeeb nkab uas tsis yog siv cov yeeb nkab hlau, feem ntau siv hauv vuam thev naus laus zis, cov hauv qab no peb tuaj rau hauv kev nkag siab tshwj xeeb; Purple Tooj Liab Yeeb thiab Purple Tooj Liab Yuav Ua Cas Weld nws. Tooj liab yeeb yog tseem hu ua tooj liab yeeb nkab. Cov neeg tsis muaj hlau raj ua ib hom. Yog txwv thiab kos seamless raj. Qhov hnyav dua, zoo thermal conductivity, siab qis kub kub lub zog. Feem ntau siv nyob rau hauv kev tsim cov khoom siv hluav taws xob (xws li condensers, thiab lwm yam). Kuj siv hauv cov khoom siv oxygen rau nruab cov kav dej qis-kub. Txoj kab uas hla me me yog feem ntau siv los thauj lub siab (xws li cov kab ke du, roj siab) thiab siv raws li cov raj ntsuas ntawm lub raj.
Vuam txoj kev ntawm tooj liab yeeb nkab
1. Cov kev siv vuam hlau feem ntau
Vuam tooj liab vuam cov txheej txheem muaj roj vuam, phau ntawv arc vuam thiab kev tuav tawm cov txheej txheem, qauv loj kuj tseem tuaj yeem siv cov vuam tsis siv neeg.
(1) roj vuam ntawm tooj liab vuam vuam
Tooj liab yeeb yog feem ntau siv pob tw pob qij txha, ncej puab pob qij txha thiab butyl pob qij txha ua tau. Roj av vuam yuav siv tau rau ob hom xaim, ib qho yog muaj cov khoom lag luam deoxygenated ntawm cov xaim, xws li xaim 201, 202; Lwm qhov yog cov hlau tooj liab dav dav thiab cov niam txiv txiav, kev siv roj ua kua roj 301 ua pa roj hmab yuav tsum tau siv nyob rau hauv nruab nrab nplaim taws.
(2) Tes Arc Vuam ntawm Purple Tooj Liab Yeeb.
Voog tuab ntau dua 4 hli, qhov vuam vuam yuav tsum yog ua ntej vuam, kub yog feem ntau yog {{1} degree. Vuam nrog tooj liab 107 electrode, lub zog hluav taws xob yuav tsum yog DC rov qab. Vuam yuav tsum yog Arc luv luv, lub electrode yuav tsum tsis txhob ua viav vias. Vuam qws rau reciprocating tawm cov lus tsa suab, siv Weld yuav tsum tau siv los ntawm kauj ruam tom qab vuam rov qab li sai tau.
Ntau txheej txheem vuam, yuav tsum tau kom huv si tshem tawm cov kev sib tsoo interlayer. Vuam yuav tsum tau nqa tawm hauv qhov chaw muaj cua zoo los tiv thaiv tus kab mob lom. Tom qab vuam, Weld yuav tsum tau ntaus nrog lub rauj tiaj tus tub ntxau los tshem tawm kev ntxhov siab thiab txhim kho qhov zoo ntawm WELD.
(3) Tooj liab yas Argon Arc Vuam
Nyob rau hauv lub paj yeeb nkab tooj liab txhais tes arcon arc vuam, kev siv hlau vuam hlau) thiab hlau 202, kuj tseem siv T2.
Vuam yuav tsum ua ntej lub vuam ntug ntawm lub workpiece thiab vuam hlau saum toj no ntawm oxide zaj duab xis, roj yuav tsum ntxuav kom tsis txhob muaj qhov ua yeeb yam kom tsis txhob muaj qhov ua yeeb yam, tawg thiab lwm yam tsis meej. Kev tu cov txheej txheem yog cov kev kho tshuab ntxuav cov txheej txheem thiab tshuaj ntxuav txoj kev. Taub pob ua ke phaj tuab yog tsawg dua 3mm, tsis muaj beveling;
Phaj tuab ntawm 3 ~ 1 {9}} hli, qhib v-bevel, bevel kaum sab xis ntawm 60 degree ~ degree ~ 70 degree; Phaj tuab ntau dua 10 hli, qhib x-bevel, bevel kaum sab xis ntawm 60 degree ~ 70 degree; Txhawm rau kom zam tsis tau unwelded, feem ntau tsis txhob tawm ib lub ntsej muag. Raws li lub phaj tuab thiab bevel loj, cov sib dhos sib txawv ntawm lub taub qab sib koom tes yog xaiv nyob rau hauv thaj tsam ntawm 0.5 ~ 1.5mm.
Purple tooj liab los ntawm txhais tes arcon arc vuam, feem ntau yog siv dc qhov kev sib txuas zoo, uas yog, lub tungsten ncej txuas nrog tus ncej tsis zoo. Txhawm rau txhawm rau ua cov porosity thiab ua kom ntseeg tau tias txhim khu kev qha ntawv ntawm lub hauv paus ntawm Weld, nws yog qhov tsim nyog los nce kev nrhiav vuam, thiab preheat weldment. Thaum lub phaj tuab yog tsawg dua 3mm, lub preheating kub yog 150-300 degree; Phaj tuab yog ntau dua 3mm, lub preheating kub yog {{}} degree. Preheating kub yuav tsum tsis txhob siab dhau, txwv tsis yog cov khoom siv me me ntawm welded pob qij txha yog txo.
(4) Carbon Vuam ntawm tooj liab kav
Cov Pa roj carbon arc vuam siv cov elecodes muaj cov roj carbon electrode thiab graphite electrode. Cov pa roj carbon arc vuam ntawm tooj liab thiab roj vuam hlau siv tib yam, muaj roj av vuam flux, xws li roj flux flux 301.
2. Tooj Yeeb Nkab Vuam Vuam Piv Txwv
Piv txwv 1. Tes Tungsten Argon Arc Vuam ntawm Tooj Liab Tubes
Ib chav tsev nyob rau hauv lub installation ntawm cov cuab yeej siv hauv 6 φ180mm φ 10 hli tooj liab vuam (kev siv cov qauv vuam kom tiav, kev siv vuam yog raws li hauv qab no:
1.1 Kev Npaj Vuam
1.1.1 Vuam cov khoom siv rau wse {3}}} Hom AC thiab DC Tig Vuam Tshuab, DC Qhov Txuas Zoo. Vuam cov khoom xaiv ntawm Tooj Liab Hlau (Hlau 201), Inch 3mm. Argon purity ntau dua los yog sib npaug rau 99.96%.
1.1.2 Bevel pab pawg tsis muaj kev sib kis.
1.1.3 Tooj liab vuam thaj chaw thiab xaim hlau yuav tsum tsis muaj roj, txheej oxide, dej, thiab lwm yam.
1.1.4 Vuam qhov ntsuas: Tungsten Electrode: Nozzle tungsten electrode, nozzle: φ14 hli, vuam tam sim no 160 ~ 180A, Argon Roj Flow: 15l / min.
1.1.5 preheating: Vim yog lub thermal conductivity thiab thermal expardity siv oxygen, yog li ntawd, muaj cov qauv ntsuas hluav taws xob nrog 500 tus lej ntsuas yog: taw tes sib cuag tus pas ntsuas kub.
1.1.6 Tshaj tawm cov yeeb nkab fittings welded nyob rau hauv ob qho (raws li txoj haujlwm ntawm vuam, ib qho rau kev pib ntawm vuam, ib qho rau kev pib ntawm vuam, ib qho rau kev pib ua kom ntev dua lossis sib npaug ntawm 3 hli yog qhov tsim nyog.
1.2 vuam
Vuam qib rau ob txheej, yog dab tsi, txheej hauv qab thiab npog txheej txheem hauv lub moos ntawm 10: {, random rotating upward vuam.
1.2.1 Hauv qab Vuam: Hauv qab Welding siv txoj kev vuam sib tw, vuam los tiv thaiv kev ua yeeb yam, vuam los tiv thaiv kev ua kom tsis pom zoo thiab weld tsis zoo rau weld dhau. Vuam hlau thiab cov yeeb nkab hlau lub kaum ntse ntse lub yuav tsum tau me me li sai tau, txhawm rau ntxiv dag zog rau cov kev tiv thaiv cov roj txheem sib cav.
Vuam cov kev tawm tsam yog ib yam dab tsi, tswj cov dej npau npau, ua kom pom kev zoo heev, tus yuam sij yog kom ua kom zoo rau cov kua roj av, kom tau ua kom zoo dua qub, qhov tseem ceeb yog kom ua kom zoo rau cov kua ntawm cov kua roj liab.
Nqa "cov qauv pub mis" hlau pub rau txhaws, yog tias lub xeev repuam ncauj, yog ib txwm muaj kev sib tw weld Lub arc, cov pob qij txha thiab cov txheej txheem kev ua haujlwm thiab cov Aforementioned Argon arc vuam yeeb nkab wrding tib txoj kev.
1.2.2 Daim Npog Vuam: Qhov Kev Siv Vuam Ua Si Sab laug thiab sab xis kom tswj tau cov kab hlau, thiab ntau dua li cov pas dej ua ke, thiab ntau dua li cov pas dej Molel, thiab ntau dua li cov pas dej Molten yog tib yam, txhawm rau muab tso rau sab hauv thiab sab nraud ntawm weld nrog zoo zoo.
1.3 kev ceev faj
(1) VUAM VUAM YUAV TSUM TAU TXAIS KEV TSIM NYOG "TUNGTEN" (piv txwv li, Tungsten Electrode thiab Hlau lossis Tungsten Hauv Pas Dej thiab Molten Packgroad Vuam "tungsten" yuav tsim cov pa roj hlau loj, thiab muab cov taub hau ntau, thiab kev sib tsoo ntawm lub ntsej muag, thiab kev sib tsoo ntawm lub ntsej muag, thiab kev sib tsoo ntawm lub ntsej muag, thiab kev sib tsoo ntawm lub ntsej muag, thiab kev sib tsoo ntawm lub ntsej muag, thiab kev sib tsoo ntawm lub ntsej muag, thiab kev sib tsoo ntawm lub ntsej muag, thiab kev sib tsoo ntawm lub ntsej muag, thiab kev sib tsoo ntawm lub ntsej muag, thiab kev sib tsoo ntawm lub ntsej muag, thiab kev sib tsoo ntawm lub ntsej muag, thiab kev sib tsoo ntawm cov kab ke Hloov lub tungsten electrode lossis reshape lub tungsten electrode taub kom ua tiav kom ua tiav tsis muaj tooj liab spot hlau.
(2) Kev sib tiv tauj ntawm tus ncej puab yuav tsum yog khov kho kom tiv thaiv cov nplaim yeeb los ntawm kev khawb.
3) Tom qab Weld tau txias dua me ntsis, ces tig cov yeeb nkab fittings thiab ntsuas phoo lawv khov kho.
(4) Tswj qhov kub ntawm txheej, pom tias daim ntawv thov kev sib cav sib ceg, thiab tom qab ntawd welded, txwv tsis pub ua tsis tiav lossis tsis muaj kev cuam tshuam zoo.
(5) Cov ntaub ntawv ua kom zoo dua, vuam ceev yuav tsum tau yooj yim dua, thiab kev tiv thaiv kom tsis txhob muaj kev tsim nyog lossis tsis muaj qhov tsis txaus ntseeg.
(6) Vuam Arc tawm, yuav tsis raug tua hluav taws xob tam sim ntawd, yuav tsum tau tiv thaiv cov pas dej molting siv, txhawm rau tiv thaiv cov porosity.
1.4 Post-Welding Kho
Tom qab tshuaj xyuas, tsis muaj porosity, kab nrib pleb, kev sib tw, cov ntaub nplaum welded, nrog cov kais dej txias kom loj dua, yog li ntawd lub chaw welded kom ntxiv cov xim.
Piv txwv 2 oxygen - acetylene welding vuam Δ {2}} hli nyias tooj liab phaj
Moj tej hluav taws xob sib zog sib nrug ua ke khiav dej txias nres yog ua los ntawm Δ {{mm nyias luav tooj liab phaj welded hauv khub. Vuam vim yog cov tooj liab thermal conductivity yog qhov zoo heev, vim tias qhov kub tsis txaus los ua lub pas dej weld, ua rau hauv Weld Channel tsis fused lossis fused tsis zoo; Qhov ntsuas kub yog qhov siab dhau, qhov chaw weld melted ib thaj chaw loj, kev tsim cov khoom hlawv, cov vuam ntawm nyias lub hnab tooj liab yog qhov teeb meem "tsis zoo".
Raws li cov xwm txheej saum toj no uas siv "tooj dag brazing" vuam txoj kev tuaj yeem yog cov tshuaj zoo rau qhov teeb meem no. Vuam npaj thiab vuam txheej txheem ua haujlwm yog raws li nram no:
(1) 60 hli nyob rau txhua sab ntawm Weld los ua cov txheej txheem txiav tshuaj thiab siv hlau txhuam mus rau Polish cov hlau Luster.
(2) Weldments tso rau qhib Bevel, pab pawg sib twv yuav tsum yog<1mm.
(3) ф3mm Silicon tooj dag hlau (hlau 224) thiab flux 301 flux.
(4) Yuav muab welded ntawm lub ncoo tiaj (ncoo phaj nrog cov phaj tiaj tus kheej, yuav tsum tuab, txhawm rau tiv thaiv kev deformal thermal).
(5) preheating, ob lub hwj huam siv hluav taws xob nruab nrab, nruab nrab ntawm cov nplaim hluav taws xob nyob rau tib lub sijhawm kom ua kom sov weld, qhov kub txog 500 ~ 600 degree. Ib lub vuam, lwm tus tseem nyob rau pem hauv ntej ntawm txoj kev vuam taug kev mus txuas ntxiv kom muaj cua sov kom ntseeg tau tias qhov kev sib tw.
(6) preheating ntawm cov welder siv nruab nrab nplaim hluav taws, vuam vuam siv cov nplaim taws micro-oxidation.
(7) Muab txoj kev vuam thiab tsim qauv vuam yuav tsum tau nqa tawm tsis tu ncua, txoj haujlwm ntawm qhov sib txuas ntawm 60 ~ 80mm yog qhov tsim nyog, txoj haujlwm ntawm cov vuam taw tes yuav tsum yog me dua.
(8) Cua sov thiab vuam yuav tsum tau them sai sai rau cov kev hloov pauv ntawm qhov kub thiab qis, kev pom zoo rau cov xim dub (550 ~ 600 degree) yog qhov tsim nyog.
(9) Lub tshuab txiav caj pas yuav tsum viav vias zoo thiab txav mus tom ntej ntawm ib qho nrawm. Qhov tseem ceeb ntawm cov nplaim hluav taws (dawb taw tes) yuav tsum siab dua li melting pas 5 ~ 8mm. Cov ntsiab lus ntawm cov nplaim taws yuav tsum nco ntsoov shroud lub suab nkauj me me, zam kev sib cuag nrog huab cua. Nco ntsoov tias cov tooj dag ua kua yog ntuj, du diffusion rau ob sab ntawm Weld, thiab raus hauv qhov sib txawv.
(10) Txhawm rau ua kom lub koom haum ntawm welded sib koom ua ke crystallization ntawm zoo, txhim kho lub zog thiab tawv me me kom zoo rau kev tuav pov tseg.
(11) Tom qab vuam los ua qhov ntsuas kev ua tau zoo.
