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1. Zvinhu zvemuviri zve austenitic simbi isina tsvina
High resistivity - pasi pechigadziro chemazuva ano, kupisa kwakawanda kunogadzirwa pachikamu chenguva
Yakakura coefficient yekuwedzera kwemutsara - Pasi peiyo tembiricha yekuisa, iyo deformation yakakura uye kushushikana kunogadzirwa.
Urombo husina kunaka hwekupisa - kunonoka kupisa kupisa.
2. Kusakwana kwakajairika muwelding process ye austenitic Stainless steel
1) Stomata: Hydrogen pores inokonzerwa nehunyoro kana kusakwana kuoma kunoitika kakawanda
2) Kutsemuka: kuputika kunopisa uye arc gomba kutsemuka kunokonzerwa neP uye S kuparadzaniswa kunoitika kazhinji (teerera kune arc kuunganidzwa kunogona kudziviswa)
3)Intergranular corrosion: kugara munzvimbo inonzwisisika tembiricha ye450-850 °C kwenguva yakareba, muganho wezviyo unokonzeresa chromium carbides kuumba chromium-varombo miganhu yezviyo.
Stomata
Mitswe
Intergranular corrosion
3 Simbi isina tsvina ine ruoko electrode general welding yakakosha
Chengetedza mamiriro acho
Inofanira kuchengetwa muimba yakaoma, inokurudzirwa kuti tembiricha yemukati iri pamusoro pe5 ° C, hunyoro hwehukama huri ≤ 60%, uye inochengetwa isingasviki makore matatu.
Pakuchengeta, inofanira kuva 300mm pamusoro pevhu uye kupfuura 300mm pamusoro pemadziro.
Usakanda pamadiro paunenge uchitakura, kana zvisina kudaro zviri nyore kuita kuti ganda riwe.
Kugadzirira musati welding
1) Iyo welding tsvimbo inoda kuomeswa kwe300 · 350 ° C kweawa imwe, uye tembiricha inogona kuwedzerwa kusvika 350 ° C kana nguva yekuomesa inogona kuwedzerwa zvakakodzera kana yakanyorova zvakanyanya, uye huwandu hweakaturikidzana akaturikidzana panguva. kuomesa hakufaniri kudarika 3 layers; Zvakanakisisa kuishandisa nekuomeswa kana kuisa mubhaketi rekudzivirira rine simba kwemazuva anopfuura maviri kuti uzvichengetedze kuti udzivise kuomesa kwechipiri kusingakodzeri kudzivirira ganda retsvimbo kuti risadonha.
2) Mafuta uye ngura yemvura pane welding surface inoda kunyatsocheneswa
Welding process control
1) Kusarudzwa kwazvino: Tarisa kuI = (25-40)* DD ndiyo dhayamita ye electrode
2) Edza kuderedza arc welding
3) The welding rod swing haifanire kunge yakafara zvakanyanya, kazhinji mukati me3 times the diameter of the electrode.
4) The welding speed haifaniri kunonoka kudzivirira kupisa uye slagging; Nekudaro, kana zviri nyore kupaza, unogona kusarudza diki ikozvino inononoka welding
5) Nekuda kwehunhu hwesimbi isina simbi mu vertical welding, iyo simbi yakanyungudutswa iri nyore kuyerera, uye yakanakisa sarudzo ndeye kushandisa arc breaking welding nzira.
6) Kana ma-multi-layer (channel) welding, welding slag inofanira kucheneswa
7) Gomba rearc rinofanira kuzadzwa kana arc yakavharwa
Mirayiridzo yokuwedzera
1) Paunenge uchishandisa AC magetsi, splash yakakura, ganda riri nyore kutsvuka, kudzika kwekupinda hakuna kudzika, uye zviri nyore kunamatira kubhodhi, saka zvinokurudzirwa kushandisa DC + welding.
2) Paunenge uchishandisa DC, waya yepasi yakanyatsobatanidzwa nepakati pechiteshi uye yakagadziriswa kudzivirira kutsauka kwearc kana kuputsika kwearc.
| Category | Ganda rudzi | Product | Tembiricha | Nguva |
| simbi isina ngura | Titanium calcium mhando | E307-16、E308-16、E308L-16、E309-16、E309H-16、E309L-16、E309LMo-16、E310-16、E310Mo-10、E310Nb-16、E316-16、E316、E316、E316、E316,E3-16、E310-16、E310-16、 16 ,E317L-16、E318-16、E320-16、E347-16、E385-16、E410-16、E410NiMo-16、E2209-16、E2307-16、E2553-16、E2593-25、E45、E6-16、E2593-25、E69,E2593-16、E2593-16） -16 | 300-350 ℃ | 60min |
| simbi isina ngura | Low hydrogen mhando | 308,309,310,316,347,385,507,2209,2553,2593,2594,2595 | 300-350 ℃ | 60min |
Nguva yekutumira: Oct-13-2022