Cov txheej txheem welding

Tej yam uas koj yuav tsum tau npaj rau cov vuam zoo tib yam, xws li vuam tshuab, vuam hlau, vuam pliers, thiab lwm yam.

1. Phau ntawv arc vuam:

Ib txoj kev siv lub tshuab vuam uas siv cov arc ua qhov cua sov kom yaj cov electrode thiab lub hauv paus hlau los ua ib qho vuam. Lub arc kub yog nyob ib ncig ntawm 6000-8000 degree . Haum rau vuam ferrous hlau thiab qee cov hlau tsis muaj hlau, nrog rau ntau yam kev siv, tshwj xeeb tshaj yog tsim rau luv welds thiab irregular welds.

2. Submerged arc vuam (tsis siv neeg thiab semi-braked) arc kub hnyiab tau nyob rau hauv cheeb tsam flux, siv granular flux ua ib txheej txheej ntawm cov hlau molten pas dej ua ke kom cais cov cua nkag mus rau hauv lub pas dej molten. Lub vuam hlau tsis tu ncua pub rau hauv thaj tsam arc los ntawm cov hlau pub mis, thiab cov kev taw qhia vuam thiab txav ceev ntawm arc tau ua tiav manually lossis mechanically.

Nws yog tsim rau welding ncaj welds thiab tsis tu ncua welds ntawm carbon steel, tsawg alloy steel, stainless hlau, tooj liab thiab lwm yam nruab nrab thiab tuab phaj ntaub ntawv.

3. Gas thiab hluav taws xob vuam:

(Gas shielded welding thiab argon arc welding) Arc welding uas siv cov roj shielding los tiv thaiv qhov chaw vuam. Cov roj tiv thaiv ua raws li cov txheej txheem tiv thaiv rau cov hlau molten pas dej ua ke kom cais cov huab cua. Cov pa roj siv muaj xws li cov roj inert, txo cov pa roj thiab oxidizing roj, uas yog tsim rau vuam ntawm carbon steel, alloy steel, tooj liab, txhuas thiab lwm yam non-ferrous hlau thiab lawv alloys. Oxidizing gas yog tsim rau cov pa roj carbon steel thiab hlau alloy hlau alloys

4. Kub yaj welding: PPR yeeb nkab installation cov cuab yeej, suav nrog kub yaj cov cuab yeej thiab cov cuab yeej txiav, xws li lub siab tswj, hluav taws xob fusion, cov khoom siv cua sov, cov tshuab txiav, thiab tseem ua tiav cov cuab yeej sib xyaw. Kev xaiv hluav taws xob cua sov ntawm cov cuab yeej siv vuam kub: feem ntau yog 700-800W rau cov kav dej uas muaj txoj kab uas hla sab nraud tsawg dua lossis sib npaug li 63 hli; 1200-1500W rau cov kav dej uas muaj txoj kab uas hla sab nraud ntawm Ntau dua lossis sib npaug li 75mm.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Lub ntsiab welding txoj kev ntawm pipelines muaj xws li cov hauv qab no:

1. Kev tuav arc vuam.

2. Cellulose downward vuam txheej txheem.

3. Tsawg hydrogen hom ntsug downward electrode vuam.

4. Weld hauv qab ntawm cov cellulose electrode vertically thiab siv CO2 roj shielded vuam los sau rau saum npoo.

5. Semi-automatic vuam nrog tus kheej tiv thaiv flux cored hlau.

6. CO2 roj shielded semi-automatic los yog tag nrho tsis siv neeg vuam nrog high-zoo vuam tshuab.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Cov txheej txheem welding yeeb nkab:

1. Kev xaiv vuam fais fab hom thiab polarity:

Vuam fais fab hom: AC, DC;

Kev xaiv polarity: kev sib txuas rau pem hauv ntej, rov qab txuas;

2. Weld pas nrig txoj kab uas hla:

Muaj peev xwm xaiv tau raws li lub thickness ntawm lub vuam. Feem ntau, qhov ntau dua qhov tuab, qhov tuab ntawm txoj kab uas hla ntawm vuam pas nrig xaiv.

3. Kev xaiv ntawm vuam tam sim no:

Thaum xaiv vuam tam sim no, muaj ntau yam yuav tsum xav txog, xws li: electrode txoj kab uas hla, txheej hom, workpiece thickness, sib koom ua ke, vuam txoj hauj lwm, vuam hlaws theem, thiab lwm yam. vuam txoj hauj lwm, thiab vuam hlaws theem.