1. Welding deformation control matanho
(1) Ita ongororo inonzwisisika uye kuverenga kwechimiro, tarisa iyo welding deformation uye shrinkage reserve, uye kune yakaoma node zvikamu, welding reserve shrinkage inogona kutariswa kuburikidza nekuyedzwa.
(2) Dzora chibvumirano chegungano
Nyatsodzora iko kurongeka kwebevel uye kubvumidzwa kwegungano, uye sarudza yakakodzera groove chimiro uye welding kutevedzana kudzikisa welding deformation.
(3) Shandisa furemu yevhiri ine deformation-proof
Unganidza negungano rinodiwa uye mafuremu ekutambisa matayi, zvigadziriso zvekushandisa, zvitsigiro uye zvakachengetwa shrinkage margin.
(4) Ita gungano rose muzvidimbu
Kune zvikamu zvakaoma, sezvinobvira mumabhururu, iyo yose yegungano welding nzira yekugadzira.
Block-to-piece welding:
(5) Symmetrical uye yunifomu welding
Ø Kana iyo gobvu ndiro groove weld yakashongedzwa, huwandu hwekutendeuka hunowedzerwa zvinoenderana nekukanganisa, uye welding inoiswa symmetrically, uye kururamisa kwemurazvo mukuita kunofananidzwawo.
Ø Kana kugoverwa kweweld kwechikamu kunoenderana negeometrically neutral axisymmetric distribution of the component, the welding of the component adopts symmetrical uniform welding to offset the whole deformation of the component using the principle of symmetry.
Ø Iwo maviri welds akarongedzerwa maererano nendege neutral axis symmetry inofananidzira kune imwe neimwe munzira imwe chete, iyo yakafanana yakatarwa, uye welding inoitwa panguva imwe chete, panguva ino, shrinkage kana deformation yemaviri symmetrical welds. pamwe chete negwara rakamira reiyo akisi isina kwayakarerekera yendege inodzikama nekukanzura imwe neimwe kunze.
Ø Kuti uenzanise weld seam pane imwe symmetrical ndege, weld seam pane ese ari maviri ndege inochinjika, iyo welding dhairekitori yakafanana, iyo yakatarwa yakafanana, kuitira kuti mawelds ese anofanirwa kuenzana kune yakasarudzika axis. chikamu, kuitira kuti deformation yose yechikamu ienzane pamwe chete uye inoderedzwa.
(6) Seta welding reverse deformation zvinoenderana nehunhu hwejoinhi
Kune T-type welded joint ine kurebesa kukuru kwebapiro ndiro, kuderera kweweld mushure mewelding kunokonzera kudonha kwechikamu chekubuda chebapiro, uye preset welding reverse deformation isati yagadzirwa inzira inoshanda kudzora deformation welding.
A. Verenga huwandu hwe deformation kana kona yechikamu chakarebeswa chebapiro rebapiro zvichienderana nehukuru hweweld (huwandu hwekuzadza), huwandu hwekuwedzera kweplate rebapiro, uye ukobvu hwebapiro rebapiro;
B. Unganidza iyo welding mushure meiyo welding reverse deformation ye preset bapiro ndiro maererano neyakaverengerwa inofungidzirwa deformation kukosha;
C. Nokuda kwehukobvu hwakanyanya hwebapiro rebapiro, kugadzirwa kwechimiro chakakosha chekutsika pamuchina wepamusoro-soro wakadzvanya zvakananga anti-deformation;mushure mekusangana kwakajairwa kweprimer welding kwapera, nzira yekupisa murazvo inoshandiswa kuseta iyo welding anti-deformation yebapiro ndiro.
(7) Zvinonzwisisika welding order
Kune ma welds akareba, pasi pemamiriro anobvumirwa nechimiro, iyo inoenderera weld inofanira kuchinjwa kune inopindirana weld kuderedza deformation;sezvo kana discontinuous welds isingabvumirwi, inonzwisisika welding sequence inofanira kusarudzwa kuderedza kana kubvisa mumwe nemumwe kunze kwekugadzirisa deformation.Stepwise solder nzira, fractional stepwise solder nzira, kusvetuka welding nzira, alternating welding nzira, uye chikamu symmetrical solder nzira inogona kugamuchirwa.
2. Welding stress control uye kubvisa matanho
(1) Kudzora kushushikana kwewelding
(1) Matanho ekugadzira
Ø Deredza huwandu hwema welds uye weld size pane chimiro.
Ø Symmetrical kurongeka kwewelds kudzivirira kuwanda kwekusangana kwewelds.
Ø Gamuchira chimiro chejoint ine kuomarara kushoma.
(2) Matanho ekugadzirisa
a.Deredza huwandu hweweld kuzadza kuti uderedze kusara kwekunetseka kwewelding
Ø Gadzira zvine mutsindo groove yewelding yegobvu ndiro yakabatana kuderedza kuwanda kwekuzadza welding;
Ø Dzora iko kurongeka kwekugadzirisa uye gaka regungano regorofu, uye dzivirira kuwedzera huwandu hwekuzadza welding;
Ø Dzora iyo gobvu ndiro T yakabatana weld musono kuti usimbise welding angle, kudzivirira kuwedzera welding yekuzadza huwandu.
b.Gamuchira inonzwisisika welding kutevedzana kuti uderedze yasara kushushikana kwewelding
Ø Paunenge uchiputira pachikamu chimwe chete, welding inofanira kushandiswa nenzira yekupararira kwekupisa uye symmetrical kugovera zvakanyanya sezvinobvira;
Ø Kana izvo zvikamu zvakasungirirwa, kubva pazvinzvimbo zvakatemerwa zvezvikamu kune mumwe nemumwe, kune izvo zvinzvimbo zvine hukuru hukuru rusununguko rwekufamba pakati peumwe neumwe;
Ø Gadzirisa shrinkage margin nguva isati yasvika, iyo yekubatanidza ine shrinkage iri pachena ichave yakashongedzwa kutanga, uye iyo yakabatana ine shrinkage diki ichave yakashongedzwa gare gare, uye welding inofanira kusungirirwa pasi pediki diki diki.
c.Ita shuwa kuti preheating tembiricha, iyo yakanyanya uye shoma interlayer tembiricha muwelding inofanirwa kudzorwa zvinobudirira, kuderedza dhigirii yekusungirira yejoini yakasungwa, kuderedza kupisa kwekupisa kwakakanganiswa nzvimbo, uye kuderedza welding yakasara kushushikana kwegobvu ndiro yakasungwa;
d.Gamuchira nzira dzinonzwisisika dzevelding, dzakadai sehombe yakanyunguduka yakadzika kunyunguduka, yakakura ikozvino, uye inobudirira CO2 welding nzira, iyo inogona kuderedza nhamba yemagetsi emagetsi uye kuderedza welding deformation uye kusara kunetseka;
e.Kushandiswa kwekugadzirisa kupisa nzira yekudzikisa kushushikana mu weld: mune welding process, kupisa kune rumwe rutivi rwemusoro we welding, hupamhi hwekudziya hausi pasi pe200mm, kuitira kuti iyo uye nzvimbo yewelding panguva imwechete iwedzere uye. chibvumirano panguva imwe chete, kuitira kuti uwane chinangwa chekudzikisa kushushikana kwewelding.
f.Hammering nzira yekuderedza kusara kwekunetseka kwekushongedza: mushure mekuputira, nyundo yeruoko ine diki denderedzwa remusoro rinoshandiswa kunyudza iri pedyo seam nzvimbo yeweld, kuitira kuti simbi ye weld uye iri pedyo seam nzvimbo inogona kuwedzeredzwa uye. deformed, iyo inoshandiswa kutsiva kana kumisa kudzvanywa kwepurasitiki deformation inogadzirwa panguva yewelding, kuitira kuti welding inosara iderere.
Nguva yekutumira: Jun-06-2022