Basa rekugadzirira risati ravepo rakakosha seye welding process, iyo yakanangana nemhando yekushongedza uye mhedzisiro yechigadzirwa chakapedzwa.
1. Electrode drying
Chinangwa chekuomesa erekitirodhi pamberi pewelding ndechekubvisa mwando mumagetsi emagetsi uye kuderedza hydrogen mudziva rakanyungudutswa uye weld kudzivirira pores uye kutonhora kutsemuka.Kuomeswa kwemagetsi emhando dzakasiyana dzekuputira kwakasiyana, uye kuomeswa kunoitwa maererano nemaitiro anotsanangurwa mubhuku rekuraira re electrode.Inokurudzirwa kuomeswa zvinoenderana nepakeji mirairo yeTianqiao welding electrodes.
2. Kucheneswa tisati tasveta
Inoreva kubviswa kwemafuta, ngura, pendi uye mvura pamusoro pejojo groove nenzvimbo yaro (mukati me50mm) isati yaiswa.Kana welding ne alkaline electrodes, zvinodiwa zvekuchenesa zvakasimba uye zvakakwana, kana zvisina kudaro pores uye kunonoka kutsemuka kunogadzirwa nyore nyore.Acid electrodes hainyanyi kunetseka kune ngura.Kana ngura yakareruka uye kunaka kweweld haina kukwirira, haigone kubviswa.
3. Preheating
Inoreva maitiro ekuyeresa kunyatsopisa iyo yese kana chikamu cheweldment isati yave kupinza.Chinangwa chayo chikuru ndechekudzikisa kutonhora kwejoint mushure mekuputira, kudzivirira chizvarwa chekuomeswa chimiro, uye kuderedza welding kusagadzikana uye deformation.Iyo inzira inoshanda yekudzivirira welding makatsemuka.Kudiwa kwekupisa uye chiyero chekushisa kwekutanga kunoenderana nehupfumi hwesimbi yepasi, electrode inoshandiswa uye kudziviswa kwejoini.
Kune zvimiro zvepasi-zvakaomarara zvakaderera-kabhoni simbi uye yakaderera-alloy yakakwirira-simba simbi dzine yakaderera simba mwero, preheating kazhinji haidiwi.Nekudaro, kune zvimiro zvine kuomarara kwakanyanya kana kushata weldability izvo zviri nyore kutsemuka, preheating inodiwa isati yave welding.Welding zvinhu zvine high thermal conductivity, semhangura, aluminium uye alloys avo, dzimwe nguva zvinoda preheating, izvo zvinogona kuderedza welding ikozvino uye kuwedzera kudzika kwekupinda, uye zvakare kufambisa kusanganiswa kwesimbi weld uye base simbi.
Zvinofanira kutaurwa kuti preheat welding haisi chete kushandiswa kwesimba, kuderera kwezvibereko, asiwo kusava nemamiriro ekushanda.Welding inofanira kuitwa pasina preheating kana yakaderera tembiricha preheating chero zvichibvira.Kushandiswa kwakaderera hydrogen mhando electrodes kunogona kuderedza preheating tembiricha, nokuda kwayo yakanaka mutswe kuramba, asi mvura zviri electrode inofanira kunge yakaderera zvikuru.Chero bedzi ichibvumirwa, electrode inogona kusarudzwa maererano nenheyo yekubatanidza yakaderera, ndiko kuti, simba resimbi yakaiswa yakaderera pane iyo yesimbi yepasi, uye plastiki uye kuoma kwe electrode zviri nani pane izvozvo. yesimbi yepasi ye welding, kuitira kuti kutonhora kwekutanga kuderedzwa kana kusapisa kunogona kushandiswa.
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Nguva yekutumira: Feb-25-2022 