Kune dzakawanda nzira dzekushongedza mukugadzira simbi, asi arc welding inonyanya kushandiswa. Nekuti arc welding michina iri nyore, iri nyore kuti vashandi vashande, uye mhando yeweld yakavimbika, pane zvakawanda zvakanaka.

Arc welding inogona kukamurwa kuita manual arc welding, otomatiki kana semi-otomatiki yakanyura arc welding uye gasi-yakadzivirirwa welding maererano nechiyero che automation yekushanda uye rudzi rwezvinhu zvinoshandiswa kuchengetedza simbi yakanyungudutswa panguva yewelding.

Zvadaro zvinotevera nzira dzekushongedza dzezvivakwa zvesimbi izvi.

Kuverengazve: Welded Splice Joint muSimbi Structure

3 Mhando dze Arc Welding

1. Manual Arc Welding  

Nzira yekuvimba nekupisa kwearc inonzi arc welding. Manual arc welding imhando yearc welding ine manual welding tsvimbo, iyo inowanzoshandiswa mukugadzira zvivakwa zvesimbi.  

Iyo weldment uye electrode maelectrode maviri anogadzira arc, iyo arc inogadzira kupisa kwakawanda, iyo weldment uye iyo yakanyungudutswa electrode, iyo electrode inopera inonyunguduka kuita donhwe, shanduko kuenda mukusanganiswa kwesimbi yepasi yeyakanyungudutswa weldment. , kuumbwa kwedziva uye mutsara wezvakaoma muviri-metallurgical reactions. Sezvo arc inofamba, dziva rakanyungudutswa rinotonhora zvishoma nezvishoma uye rinopenya kuita weld.

Pasi pechiito chekushisa kwepamusoro, kutonhora mu electrode coating pasimbi yakasimbiswa slag yakanyungudutswa, yakavhara pamusoro pedziva rakanyungudutswa resimbi, haigoni kudzivirira kupisa kwepamusoro kwedziva resimbi yakanyungudutswa uye kukuvadza kweokisijeni uye. nitrogen mumhepo, uye inogonawo kutora chikamu mune yakanyungudutswa dziva kemikari reaction uye seeping alloy, nezvimwewo, mukutonhodza uye kusimba kwesimbi pamusoro, gadzira inodzivirira slag shell.

2. Otomatiki kana semi-otomatiki pasi pemvura arc welding  

Automatic submerged arc welding yakakwirira kune manual welding nekuda kwekusangana kwekupisa kwearc, saka ine kudzika kukuru kwekupinda, yunifomu weld quality, hurema hushoma hwemukati, kunaka kwepurasitiki uye kuoma kwemaitiro. Hunhu hwesemi-otomatiki yakanyura arc welding iri pakati peotomatiki yakanyura arc welding uye manual welding.

Uye zvakare, otomatiki kana semi-otomatiki yakanyura arc welding ine yakakwira welding yekumhanyisa, yakanyanya kugadzirwa kwekuita, mutengo wakaderera uye yakanaka mamiriro ekushanda. Zvisinei, kushandiswa kwavo kunogumirawo nemamiriro ayo chaiwo, nokuti welder inofanira kufamba pamwe chete negwara renjanji ye weld, saka panofanira kuva nemamwe mamiriro ekushanda.

3. Gasi-yakadzivirirwa welding

Iyo inozivikanwawo se fusion gasi arc welding, CO2 kana inert gasi inoshandiswa kugadzira nzvimbo yekudzivirira yenzvimbo yakatenderedza arc kudzivirira kupinda kwemagasi anokuvadza uye kuve nechokwadi kugadzikana kweiyo welding process.

All-position welding, kunaka kwakanaka, kukurumidza kunyunguduka kukurumidza, kushanda kwakanyanya, kuchengetedza simba, hapana chikonzero chekubvisa welding slag mushure mekuputika, asi zvakakosha kuziva kuti kuchenjerera kunofanira kubhadharwa kudzivirira mhepo kana welding.

Welding Materials

Welding zvinhu zvinosanganisira electrode, waya, simbi hupfu, flux, gasi, etc.

tsvimbo

Chidimbu chesimbi chinozadza chibatanidza cheanopisa panguva yegesi kana yemagetsi. Iyo electrode inowanzoitwa yechinhu chakafanana neye workpiece. Iyo electrode i electrode inonyunguduka ye electrode arc welding ine coating, iyo inoumbwa necoating uye welding core.  

Welding waya

Waya iwaya welding material inoshandiswa kungave sesimbi yekuzadza kana seyemagetsi conductor. Mune gasi welding uye tungsten gasi-yakadzivirirwa arc welding, iyo welding waya inoshandiswa seyekuzadza simbi; Mune yakanyudzwa arc welding, esG welding uye imwe GAS-yakadzivirirwa arc welding, waya yekukweshesa ndiyo yese simbi yekuzadza uye conductive electrode. Pamusoro pewaya yewelding haina kuputirwa ne-anti-oxidation flux.  

Metal upfu

Metal powder zvinoreva boka resimbi rine saizi isingasviki 1mm. Single simbi poda, alloy poda uye imwe refractory musanganiswa poda ine simbi zvimiro ndiyo huru yehupfu hwesimbi simbi.  

yerera

Flux, inonziwo brazing agent, ine tsananguro yakafara, kusanganisira munyu wakanyungudutswa, organic matter, gasi rinoshanda, simbi simbi, nezvimwewo, kureva, kuwedzera kune base simbi uye solder, kazhinji inoreva rudzi rwechitatu rwezvinhu zvinoshandiswa kugadzira. kuderedza kushushikana kwemukati pakati pesimbi yepasi uye solder.  

Gesi

Gasi ndiyo imwe yenzvimbo ina dzinokosha dzezvinhu (mamwe matatu akasimba, mvura uye plasma). Magasi anogona kuumbwa neatomu rimwechete (semuenzaniso, gasi rakanaka), elemental mamorekuru echimwe chinhu (semuenzaniso, okisijeni), makomisheni mamorekuru ezvinhu zvakawanda (semuenzaniso, carbon dioxide), zvichingodaro.

Mamiriro uye Zvinodiwa

Welders vanozove vanokwanisa nekudzidziswa uye kuwana zvitupa zvekukwanirisa vasati vaita basa rekushongedza.

Kune ma weld akakosha ezvikamu zvakakosha zvemuumbirwo, migumo yese yewelds kana mharadzano yewelds inofanirwa kudhindwa nekodhi welder.

Usati waputira, zvikamu zvekushongedza zvinofanirwa kucheneswa tsvina padyo nepamusoro peiyo weld, senge oxide scale, mafuta, anticorrosive pendi, nezvimwe.

Kana welding pazasi zero madhigirii Celsius, zvinotevera mamiriro anofanira kucherechedzwa:

  • Ita shuwa kuti weld inogona kuderera zvakasununguka panguva yewelding;
  • usashandise sando inorema kurova welded structural parts;
  • Usati waputira, bvisa chando chose uye chando pazvikamu zvakashongedzwa zvekugadzirisa;
  • Usati welding, preheat zvinoenderana nezvinopihwa, iyo chaiyo tembiricha inotarwa zvinoenderana neiyo process test.

Usati welding inofanira preheated maererano nezvinodiwa, inofanira kuvharidzirwa welding motherboard (web), rib plate, partition end (hukobvu kutungamira) uye chibatanidza chakafumura kuguma kwegap;

Zvikamu zvakavanzwa zvekugadzirwa kwesimbi zvinofanira kusungirirwa, kuvharwa uye kuvharwa mushure mokupfuura kuongorora.

Kaviri-sided butt welding inofanira kunhonga welding midzi, nhonga welding midzi inogona kushandisa pneumatic foshoro, carbon arc gouging, gouging uye mechanical process nzira.

Multi-layer welding ichave yakasungirirwa nguva dzose, uye imwe neimwe ye weld pass ichacheneswa uye inoongororwa nenguva mushure mekuputika, uye kukanganisa kunobviswa kusati kwave kusungirirwa.

Mukuita welding, shandisa flat welding position kusvika pazvinobvira.

Munguva yewelding, usashandise electrode ine peeling kana ngura welding core uye flux ine nyoro agglomeration uye slag goko rakanyungudutswa; Iyo welding wire uye welding chipikiri inofanira kucheneswa nemafuta uye ngura isati yashandiswa.

Iyo yekuvaka yekutanga kushandiswa kwesimbi, welding zvinhu, welding nzira, post-welding kupisa kurapwa, zvichingodaro, ichaita welding process yekuongorora, kunyora ongororo yekuongorora rondedzero, uye kuona maitirwo ewelding zvinoenderana nemushumo wekuongorora.

Welder stop welding nguva inopfuura mwedzi mitanhatu, inofanira kuongororwa zvakare.

Welding, welders vanofanira kutevedzera welding process, kwete yemahara welding uye arc pane base simbi kunze weld bead.

Butt joint, t-shaped joint, kona yejoint, cross joint butt weld uye butt nekona yejoint joint weld, inofanira kuiswa kumativi ose e-welding arc uye lead plate, zvinhu uye groove fomu inofanira kunge yakafanana neye weldment.

Kureba kwearc initiation uye lead weld: yakanyura arc welding inofanira kunge yakakura kupfuura 50mm, manual arc welding uye gasi-yakadzivirirwa welding inofanira kunge yakakura kupfuura 20mm. Mushure mekugadzira, kucheka gasi kunofanira kushandiswa kucheka arc uye lead plate, uye yakakwenenzverwa yakatsetseka, haifanirwe kupfurwa pasi nesando.

Weld cracks, welders haigoni kubata pasina mvumo, inofanira kuziva chikonzero, kuisa nzira yekugadzirisa inogona kugadziriswa. Nhamba yekugadziriswa kwechikamu chimwechete che weld haifaniri kudarika kaviri. Kana yaitwa kanopfuura kaviri, nzira yekugadzirisa inofanira kuitwa maererano nekugadzirisa.  

Mushure mekuputika, welder inofanira kuchenesa slag pamusoro pemvura uye spatter kumativi ose maviri, uye kutarisa kutaridzika kwehutano hweweld. Mushure mokupfuura kuongororwa, chiratidzo chesimbi ye welder chichaitwa pane welding seam chikamu chinotsanangurwa mukuita.

Carbon structural simbi inofanira kutonhodzwa kusvika kune ambient tembiricha muweld, uye low-alloy structural simbi inofanira kusungwa kwemaawa makumi maviri nemana isati yaongororwa.  

Taura nesu >>

Une mibvunzo kana kuti unoda rubatsiro? Tisati tatanga, iwe unofanirwa kuziva kuti dzinenge dzese prefab simbi zvivakwa zvakagadziridzwa.

Chikwata chedu cheinjiniya chichazvigadzira zvinoenderana nekumhanya kwemhepo yemuno, kuremerwa kwemvura, length*width*kureba, uye dzimwe sarudzo dzekuwedzera. Kana, isu tinogona kutevera mifananidzo yako. Ndokumbira undiudze zvaunoda, uye isu tichaita zvimwe!

Shandisa fomu kuti usvike uye isu tichakubata newe nekukurumidza sezvinobvira.

Pamusoro peMunyori: K-HOME

K-home Iyo kambani Steel Structure Co., Ltd inofukidza nzvimbo ye120,000 square metres. Isu takabatikana mukugadzira, bhajeti reprojekiti, kugadzira, uye kuiswa kwePEB simbi zvivakwa uye masangweji mapaneru ane yechipiri-giredhi general contracting qualifications. Zvigadzirwa zvedu zvinovhara zvimiro zvesimbi zvakareruka, PEB zvivakwa, dzimba dzeprefab dzakaderera, dzimba dzemidziyo, C/Z simbi, mhando dzakasiyana-siyana dzesimbi simbi ndiro, PU sandwich panels, eps sandwich panels, rock wool sandwich panels, cold room panels, purification plates, nezvimwe zvekuvaka.