Simbi yakabatiswa kazhinji idhiri rezingi rakavharwa kunze kwesimbi yakaderera-kabhoni, uye zingi yekupfekedza inowanzoita 20μm mukobvu. Panonyungudika zinc i419°C uye painofashaira inenge 908°C.
Iyo weld inofanirwa kukwenenzverwa isati yaiswa
Iyo galvanized layer paweld inofanirwa kukwenenzverwa, zvikasadaro mabubble, maburi ejecha, welding yenhema, nezvimwe zvichagadzirwa. Ichaitawo kuti weld brittle uye kuderedza kuoma.
Ongororo yehunhu hwe galvanized steel welding
Munguva yewelding, zinki inonyunguduka kuita mvura uye inoyangarara pamusoro pedziva rakanyungudutswa kana pamudzi weweld. Zinc ine hombe yakasimba solubility musimbi. Liquid zinc inoshatisa zvakanyanya simbi yeweld padivi pemuganho wezviyo, uye yakaderera-inonyungudika-nzvimbo zinc inoumba "mvura yesimbi embrittlement".
Panguva imwecheteyo, zinc nesimbi zvinogona kuumba intermetallic brittle compounds. Aya ma brittle phases anoderedza plasticity ye weld simbi uye anoburitsa makatsemuka pasi pekunetsekana.
Welding fillet welds, kunyanya fillet welds yeT-joints, inowanzo gadzira kuburikidza nekutsemuka. Kana simbi yakabatiswa yakasungwa, iyo zinc layer iri pa groove pamusoro nepamupendero ichaita oxidize, kunyunguduka, kubuda pasi pekuita kwekupisa kwearc, uye kunyungudutsa utsi chena uye chiutsi, chinogona kukonzera weld porosity nyore.
ZnO inoumbwa neoxidation ine nzvimbo yakakwira yekunyungudika, pamusoro pe1800°C. Kana ma parameter ari madiki zvakanyanya panguva yewelding, ZnO slag inclusion ichaitika. Panguva imwecheteyo, sezvo Zn inova deoxidizer, FeO-MnO kana FeO-MnO-SiO2 yakaderera melting point oxide slag inclusion ichagadzirwa. Chechipiri, nekuda kwekubuda kwe zinc, huwandu hukuru hwehutsi huchena huchaputika, huchatsamwisa nekukuvadza muviri wemunhu. Naizvozvo, iyo galvanized layer iri pawelding point inofanirwa kukwenenzverwa.
Xinfa welding midziyo ine hunhu hwemhando yepamusoro uye mutengo wakaderera. Kuti uwane ruzivo, ndapota shanya:Welding & Cutting Manufacturers - China Welding & Cutting Factory & Suppliers (xinfatools.com)
Nzira yekudzora sei galvanized steel welding process?
Iyo pre-welding gadziriro yegalvanized simbi yakafanana neyeye general low-carbon steel. Zvakakosha kunyatsobata groove saizi uye iri pedyo galvanized layer. Kuti uwedzere, saizi yegorofu inofanira kunge yakakodzera, kazhinji 60 ° ~ 65 °. Rimwe gwanza rinofanira kusiiwa, kazhinji 1.5 ~ 2.5mm. Kuti uderedze kupinda kwe zinc mu weld, iyo galvanized layer mu groove inogona kubviswa isati yanyungudutswa.
Mubasa rekutarisa chairo, kugadzira groove yepakati uye hapana yakagomara kumucheto maitiro anoshandiswa kudzora nechepakati. Iwo maviri-layer welding process inoderedza mukana wekusakwana welding.
Iyo welding tsvimbo inofanira kusarudzwa maererano nehwaro hwezvinhu zvepombi yakashongedzwa. Kazhinji, J422 inonyanya kushandiswa kune yakaderera-kabhoni simbi nekuda kwekushanda kuri nyore.
Welding technique: Paunenge uchipinza chidimbu chekutanga chemulti-layer welds, edza kunyungudutsa zinc layer woipusha nekuiputisa kuti utize weld, izvo zvinogona kuderedza zvakanyanya mamiriro emvura zinc yasara mu weld.
Kana welding fillet welds, edza kunyungudutsa zinc layer muchikamu chekutanga woita kuti ive mhute uye iputse kutiza weld. Nzira yacho ndeyokutanga kufambisa kuguma kwe electrode mberi pamusoro pe5 ~ 7mm, uye wozodzokera kunzvimbo yepakutanga uye uenderere mberi welding mberi mushure mokunge zinc layer yanyunguduka.
Mune yakachinjika uye yakatwasuka welding, kana mapfupi slag electrode akadai seJ427 akashandiswa, kumucheto kuruma maitiro kuchava kudiki kwazvo. Kana iyo yekumashure uye yekumberi tsvimbo inofambisa tekinoroji ikashandiswa, zvinowanzoitika kuti uwane chakaremara-chisina welding mhedzisiro.
Nguva yekutumira: Sep-05-2024
