1 Kakaretso
Likepe tse kholo tsa likepe li na le litšobotsi tse kang bolelele bo boholo, bokhoni ba setshelo, lebelo le phahameng, le menyetla e meholo, e bakang khatello e phahameng ea khatello sebakeng se bohareng sa mohaho oa sekepe. Ka hona, lisebelisoa tsa tšepe tse nang le matla a maholo a maholo li atisa ho sebelisoa ha ho etsoa moralo.
Joalo ka mokhoa o sebetsang hantle haholo oa tjheseletsa, terata e le 'ngoe ea terata ea khase e otlolohileng (EGW) e sebelisoa haholo. Leha ho le joalo, ka kakaretso botenya bo boholo bo sebetsang ba poleiti bo ka fihla ho 32 ~ 33mm feela, 'me bo ke ke ba sebelisoa lipoleiti tse kholo tse boletsoeng ka holimo;
Botenya ba poleiti bo sebetsang ba mokhoa oa EGW oa terata e habeli hangata bo fihla ho 70mm. Leha ho le joalo, hobane tlhahiso ea mocheso oa tjheseletsa e kholo haholo, ho etsa bonnete ba hore ts'ebetso ea motsoako o nang le welded e finyella litlhoko tse hlalositsoeng, ho lokela ho sebelisoa poleiti ea tšepe e loketseng mocheso o phahameng oa mocheso.
Ka hona, ntle le ho sebelisa lipoleiti tsa tšepe tse cheselitsoeng tse ka ikamahanyang le tlhahiso e kholo ea mocheso, tjheseletsa e otlolohileng ea lipoleiti tse kholo le tse teteaneng e ka sebelisa FCAW ea li-multi-layer multi-pass welding, 'me bokhoni ba ho cheselletsa bo tlaase.
Mokhoa ona ke mokhoa o kopantsoeng oa ho tjheseletsa oa FCAW + EGW o thehiloeng holim'a litšobotsi tse ka holimo tse ke keng tsa sebelisa EGW feela ho tjheseletsa lipoleiti tse kholo tse teteaneng, ho fana ka papali e feletseng ho melemo ea eona e phahameng, empa hape e ikamahanya le litšobotsi tsa lipoleiti tsa sebele tsa tšepe. . Ke hore, mokhoa o sebetsang hantle o kopantsoeng oa tjheseletsa o sebelisang FCAW e nang le lehlakore le le leng le le leng holim'a sebopeho sa mohaho ho finyella ho etsoa ka morao, ebe o etsa welding ea EGW sebakeng se seng sa sebopeho.
Thepa ea welding ea Xinfa e na le litšobotsi tsa boleng bo holimo le theko e tlase. Ho fumana lintlha, ka kopo etela:Baetsi ba Welding & Cutting Manufacturers - China Welding & Cutting Factory & Suppliers (xinfatools.com)
Lintlha tse 2 tsa bohlokoa tsa mokhoa o kopantsoeng oa welding oa FCAW + EGW
(1) Botenya ba poleiti bo sebetsang
34 ~ 80mm: Ke hore, moeli o ka tlaase ke moeli o ka holimo oa botenya ba poleiti e sebetsang bakeng sa monofilament EGW; ha e le moeli o ka holimo, hajoale sekepe se seholo sa lijana se sebelisa lipoleiti tsa tšepe tse botenya bo boholo bakeng sa lehlakore le ka hare le lipoleiti tse ka holimo tsa khetla. Ha ho nahanoa hore botenya ba lipoleiti tsa tšepe tsa lihlahisoa tse fapaneng bo fapane, bo ikemiselitse ho ba 80mm.
(2) Karohano ea botenya
Molao-motheo oa ho arola botenya ba tjheseletsa ke ho fana ka papali e felletseng molemong o phahameng oa ts'ebeliso ea EGW; ka nako e tšoanang, re lokela ho ela hloko hore palo ea tjheseletsa beha tšepe pakeng tsa mekhoa e 'meli ha ea lokela ho fapana haholo, ho seng joalo ho tla ba thata ho laola tjheseletsa deformation.
(3) Mokhoa o kopantsoeng oa tjheseletsa moralo o kopaneng oa foromo
① Groove angle: E le ho qoba bophara ba groove hore e be kholo haholo ka lehlakoreng la FCAW, groove e nyane ka nepo ho feta groove e tloaelehileng ea lehlakore le le leng la FCAW, e leng Botenya bo fapaneng ba poleiti bo hloka li-angles tse fapaneng tsa bevel. Ha botenya ba poleiti ke 30 ~ 50mm, ke Y± 5 °, 'me ha botenya ba poleiti bo le 51 ~ 80mm, ke Z±5 °.
② Lekhalo la metso: E hloka ho ikamahanya le litlhoko tsa ts'ebetso ea mekhoa ea ho tjheseletsa ka nako e le 'ngoe, ke hore, G ± 2mm.
③ Foromo e sebetsang ea gasket: Li-gasket tse tloaelehileng tse khutlo-tharo ha li khone ho fihlela litlhoko tse kaholimo tsa foromo e kopaneng ka lebaka la mathata a li-angle. Mokhoa ona o kopantsoeng oa tjheseletsa o hloka tšebeliso ea li-round bar gaskets. Boholo ba bophara bo hloka ho khethoa ho latela boleng ba lekhalo la kopano (sheba setšoantšo sa 1).
(4) Lintlha tsa motheo tsa kaho ea welding
① Koetliso ea ho cheselletsa. Basebelisi ba hloka ho qeta nako e itseng ea koetliso. Esita le basebetsi ba nang le phihlelo ea EGW (mokhoa oa SG-2) ho tjheseletsa lipoleiti tse tloaelehileng tsa tšepe li tlameha ho koetlisoa, hobane metsamao ea ts'ebetso ea terata e entsoeng ka letamo le qhibilihisitsoeng e fapane ha ho tjheseletsa lipoleiti tse tšesaane le lipoleiti tse kholo tse teteaneng.
②Qetello ea ho fumana. Teko e sa senyeheng (RT kapa UT) e tlameha ho sebelisoa qetellong ea weld le karolo ea ho emisa arc ho hlahloba liphoso le ho netefatsa boholo ba liphoso. Gouging e sebelisoa ho tlosa mefokolo, 'me mekhoa ea ho tjheseletsa ea FCAW kapa SMAW e sebelisoa bakeng sa ho tjheseletsa bocha.
③Letlapa la arc. Bolelele ba poleiti ea arc e tlameha ho ba bonyane 50mm. Arc striking plate le the base material na le botenya bo ts'oanang 'me li na le groove e ts'oanang. ④ Nakong ea welding, moea o tla baka pherekano ea khase e sireletsang, e bakang liphoso tsa pore ho weld, mme ho kenella ha naetrojene moeeng ho tla baka ts'ebetso e mpe ea manonyeletso, ka hona, mehato e hlokahalang ea ts'ireletso ea moea e hloka ho nkuoa.
3 Ts'ebetso ea tlhahlobo le tumello
(1) Lisebelisoa tsa tlhahlobo
Lipoleiti tsa tlhahlobo le lisebelisoa tsa ho cheselletsa li bonts'itsoe ho Lethathamo la 1
(2) Mekhahlelo ea ho cheselletsa
Boemo ba welding ke 3G, 'me li-parameter tse khethehileng tsa welding li bontšoa ho Lethathamo la 2.
(3) Liphetho tsa liteko
Teko e entsoe ho latela melaoana ea LR le CCS le tlas'a taolo ea sebaka sa marang-rang ke mohlahlobi. Liphetho ke tse latelang.
NDT le liphetho: Liphetho tsa PT ke hore likarolo tsa li-welds tse ka pele le tse ka morao li makhethe, bokaholimo bo boreleli, 'me ha ho na bofokoli bo ka holimo; Liphetho tsa UT ke hore li-welds tsohle li tšoaneleha ka mor'a tlhahlobo ea ultrasonic (kopano ea ISO 5817 level B); Liphetho tsa MT ke hore li-welds tse ka pele le tse ka morao li fumanoa ka phoso ea matla a khoheli Ka mor'a ho hlahlojoa, ho ne ho se na bofokoli ba holim'a metsi.
(4) Amohela qeto
Kamora hore NDT le tlhahlobo ea thepa ea mochini e etsoe ka manonyeletso a tjheselitsoeng litekong, liphetho li ile tsa fihlela litlhoko tsa litlhaloso tsa sehlopha sa sehlopha mme tsa fetisa tumello ea ts'ebetso.
(5) Ho bapisa ka katleho
Ho nka 1m bolelele ba weld ea poleiti e itseng e le mohlala, nako ea ho tjheseletsa e hlokehang bakeng sa welding ea mahlakore a mabeli a FCAW ke metsotso e 250; ha ho sebelisoa mokhoa o kopantsoeng oa ho tjheseletsa, nako ea ho tjheseletsa e hlokehang bakeng sa EGW ke metsotso e 18, mme nako ea ho cheselletsa e hlokehang bakeng sa FCAW ke metsotso e 125, 'me nako eohle ea ho cheselletsa ke metsotso e 143. Mokhoa o kopantsoeng oa ho tjheseletsa o boloka hoo e ka bang 43% ea nako ea ho cheselletsa ha e bapisoa le ea pele ea mahlakore a mabeli a FCAW.
4 Qetello
Mokhoa o kopantsoeng oa ho tjheseletsa oa FCAW + EGW o hlahisitsoeng ka liteko ha o sebelise ka botlalo feela katleho e phahameng ea EGW welding, empa hape o ikamahanya le litšobotsi tsa hona joale tsa lipoleiti tsa tšepe. Ke theknoloji e ncha ea ts'ebetso ea welding e nang le ts'ebetso e phahameng ea welding le bokhoni bo phahameng.
Joalo ka theknoloji e ncha ea ts'ebetso ea welding, tlhahiso ea eona ea li-groove, ho nepahala ha kopano, khetho ea thepa, li-parameter tsa welding, joalo-joalo li bohlokoa 'me li tlameha ho laoloa ka thata nakong ea ts'ebetso.
Nako ea poso: Feb-22-2024
