1. Mehato ea ho laola deformation ea welding
(1) Etsa tlhahlobo e utloahalang le lipalo tsa sebopeho, etsa qeto ea hore na ho na le deformation ea welding le shrinkage reserve, le bakeng sa likarolo tse rarahaneng tsa node, shrinkage ea welding reserve e ka khethoa ka tlhahlobo.
(2) Laola tumello ea kopano
Laola ka tieo ho nepahala ha ts'ebetso ea bevel le tumello ea kopano, 'me u khethe sebopeho se nepahetseng sa groove le tatellano ea welding ho fokotsa deformation ea welding.
(3) Sebelisa foreime ea mabili e thibelang ho fetoha
Kopana le liforeimi tse hlokahalang tsa ho kopanya le ho cheselletsa lithaere, lisebelisoa tsa lisebelisoa, litšehetso le maqheka a bolokiloeng a honyehang.
(4) Etsa kopano e akaretsang likotoana
Bakeng sa likarolo tse rarahaneng, ka hohle kamoo ho ka khonehang ka li-blocks, mokhoa oa ho hlahisa kopano ka kakaretso.
Welding-to-piece:
(5) Ho tjheseletsa ka tsela e tshwanang le e tshwanang
Ø Ha pente e teteaneng ea groove e cheselletse, palo ea li-turnover e eketseha ho ea ka deformation, 'me welding e sebelisoa ka mokhoa o ts'oanang,' me ho lokisoa ha lelakabe ts'ebetsong ho boetse ho tsamaisana.
Ø Ha kabo ea tjheseletsa ea karolo e amana le kabo ea axisymmetric ea geometrically e sa nke lehlakore ea karolo, ho tjheseletsa ha karolo ho amohela welding ea junifomo ea symmetrical ho hlakola deformation ka kakaretso ea karolo ka ho sebelisa molao-motheo oa ho lekana.
Ø Li-welds tse peli tse hlophisitsoeng ho ea ka symmetry ea sefofane e sa nke lehlakore li na le symmetrical ho tse ling ka tsela e le 'ngoe, tlhaloso e tšoanang,' me ho cheselletsa ho etsoa ka nako e le 'ngoe, ka nako ena, ho fokotseha kapa ho senyeha ha li-welds tse peli tse lekanang. ka lehlakoreng la paatsepama ea se nke lehlakore sefofane se tla leka-lekana le hlakola mong ho e mong ho tsoa.
Ø E le ho leka-lekanya seam sa weld sefofaneng se seng sa symmetrical, seam se cheselle lifofaneng ka bobeli se na le cross-welded, tataiso ea welding e ts'oana, litlhaloso li ts'oana, e le hore li-welds tsohle li lokela ho lekana le axis e sa nke lehlakore. karolo, e le hore deformation ka kakaretso ea karolo e leka-lekaneng 'me e fokotsoe.
(6) Beha tjheseletsa reverse deformation ho ea ka litšobotsi tsa lenonyello
Bakeng sa T-mofuta welded lenonyeletso le elongation e khōlō ea lepheo poleiti, shrinkage ea tjheseletsa ka mor'a hore tjheseletsa etsa hore ho putlama ho ea tlase ea outrigger karolo ea lepheo poleiti, le preset tjheseletsa reverse deformation pele tlhahiso ke mokhoa o atlehang oa ho tjheseletsa. laola deformation ea tjheseletsa.
A. Bala palo ea deformation kapa angle ea karolo e telele ea poleiti ea mapheo ho ea ka boholo ba weld (chelete ea ho tlatsa), palo ea katoloso ea lepheo la mapheo, le botenya ba poleiti ea mapheo;
B. Bokella tjheseletsa ka mor'a hore tjheseletsa reverse deformation ea preset lepheo poleiti ho ea ka balwa hakanngoa deformation boleng;
C. Bakeng sa botenya bo botenya ba poleiti ea mapheo, tlhahiso ea hlobo e khethehileng ea setempe mochineng oa khatiso o matla o ile oa hatella ka ho toba anti-deformation;ka mor'a hore kopano e tloaelehileng ea tjheseletso ea primer e phethoe, mokhoa oa ho futhumatsa lelakabe o sebelisoa ho lokisetsa ho thibela ho senyeha ha lepheo la lepheo.
(7) Taelo e utloahalang ea ho tjheseletsa
Bakeng sa li-welds tse telele, tlas'a maemo a lumelloang ke sebopeho, weld e tsoelang pele e lokela ho fetoloa ho ea ka nako e khutšoanyane ho fokotsa deformation;joalo ka ha li-welds tse sa khaotseng li sa lumelloe, tatellano e loketseng ea welding e lokela ho khethoa ho fokotsa kapa ho hlakola tse ling ho tsoa ho deformation ea welding.Ho ka sebelisoa mokhoa oa stepwise oa solder, mokhoa oa ho soahla ka mokhoa o fokolang, mokhoa oa ho tlola, mokhoa oa ho tjheseletsa o fapanyetsanang, le mokhoa o sa fellang oa solder o ka sebelisoa.
2. Ho cheselletsa khatello ea maikutlo le mehato ea ho felisa
(1) Taolo ea khatello ea maikutlo
(1) Mehato ea moralo
Ø Fokotsa palo ea li-welds le boholo ba weld holim'a sebopeho.
Ø Ho hlophisoa ha li-welds ho qoba khatello e feteletseng ea li-welds.
Ø Amohela sebopeho sa lenonyeletso le sa tieang hanyane.
(2) Mehato ea ts'ebetso
a.Fokotsa palo ea ho tlatsa weld ho fokotsa khatello e setseng ea welding
Ø Theha ka mokhoa o utloahalang sebaka sa ho tjheseletsa sa lenonyeletso la poleiti e teteaneng ho fokotsa bongata ba ho tlatsa welding;
Ø Laola ho nepahala ha ts'ebetso le lekhalo la kopano ea groove, 'me u qobe ho eketsa bongata ba ho tlatsa welding;
Ø Laola poleiti e teteaneng ea T joint weld seam ho matlafatsa angle ea welding, qoba ho eketsa palo ea ho tlatsa welding.
b.Amohela tatellano e loketseng ea tjheseletsa ho fokotsa khatello e setseng ea tjheseletsa
Ø Ha ho tjheseletsa karolong e le 'ngoe, welding e lokela ho sebelisoa ka mokhoa oa ho hasana ha mocheso le kabo ea symmetrical ka hohle kamoo ho ka khonehang;
Ø Ha likarolo li cheselitsoe, ho tloha libakeng tse batlang li tsitsitse tsa likarolo ho ea ho tse ling, ho ea ho maemo a nang le bolokolohi bo bongata ba ho tsamaea pakeng tsa tse ling;
Ø Beha moeli oa shrinkage ka mokhoa o utloahalang esale pele, lenonyeletso le nang le shrinkage e hlakileng le tla ts'oaroa pele, 'me lenonyeletso le nang le shrinkage e nyane le tla ts'oaroa hamorao,' me welding e lokela ho ts'oaroa tlas'a thibelo e nyane ka ho fetisisa.
c.Netefatsa hore mocheso preheating, boholo le bonyane interlayer mocheso ka tjheseletsa lokela ho laolwa ka tsela e atlehileng, fokotsa e tlamang tekanyo ea lenonyello welded, fokotsa tjheseletsa mocheso ameha libaka mefuta e fapaneng, le ho fokotsa tjheseletsa masala khatello ea kelello ea poleiti teteaneng tjheseletsa kopanetsweng;
d.Amohela mekhoa e metle ea ho tjheseletsa, joalo ka mokhoa o moholo oa ho qhibiliha o tebileng oa ho qhibiliha, mekhoa e meholo ea hona joale le e sebetsang hantle ea CO2, e ka fokotsang palo ea likanale tsa welding le ho fokotsa deformation ea welding le khatello ea maikutlo e setseng;
e.Tšebeliso ea mokhoa oa ho futhumatsa ho fokotsa khatello ea kelello ho weld: ts'ebetsong ea ho tjheseletsa, futhumatsa ka lehlakoreng le leng la hlooho ea ho tjheseletsa, bophara ba ho futhumatsa ha bo ka tlase ho 200mm, e le hore eona le sebaka sa ho tjheseletsa ka nako e le 'ngoe se atolohe. konteraka ka nako e ts'oanang, e le ho fihlela sepheo sa ho fokotsa khatello ea welding.
f.Mokhoa oa hammering oa ho fokotsa khatello e setseng ea weld: ka mor'a ho cheselletsa, hamore ea letsoho e nang le sefahleho se senyenyane se pota-potileng e sebelisoa ho hammer sebakeng se haufi sa seam sa weld, e le hore tšepe ea weld le sebaka se haufi sa seam se ka atolosoa. holofetse, e sebelisetsoang ho lefella kapa ho fokotsa deformation ea polasetiki ea compression e hlahisoang nakong ea tjheseletsa, e le hore khatello e setseng ea welding e fokotsehe.
Nako ea poso: Jun-06-2022