Cov txheej txheem vuam ntawm txoj kab ncaj nraim tuaj yeem muab faib ua cov kav hlau ncaj nraim thiab faus arc welded ncaj seam steel kav. Ntawm lawv, tsis kam welded ncaj seam steel kav yog muab faib ua high-frequency vuam ncaj seam steel kav, nruab nrab-frequency vuam ncaj seam steel kav, tsawg-frequency vuam ncaj seam steel kav. Lub faus arc vuam ncaj seam steel yeeb nkab tseem hu ua ob-sided faus arc vuam ncaj seam steel yeeb nkab lossis LSAW ncaj seam steel yeeb nkab. LSAW yog (Longitudinally Submerged Arc Vuam abbreviation yog abbreviated li LSAW).
Electric Resistance Weldin, tseem hu ua ERW ncaj steel yeeb nkab, tseem hu ua Electric Resistance Weldin. High-frequency vuam ncaj seam steel yeeb nkab tseem hu ua ERW ncaj seam steel yeeb nkab. ERW yog ib lub npe sib sau ua ke rau cov kav dej resistor vuam. Electric resision welding (ELW) ERW yog thawj tsab ntawv sib raug rau cov lus Askiv, feem.
Qhov kev tiv thaiv vuam steel yeeb nkab tau muab faib ua ob hom: AC welded steel yeeb nkab thiab DC welded steel yeeb nkab. AC vuam yog muab faib ua tsawg zaus vuam, nruab nrab zaus vuam, ultra-nruab nrab-frequency vuam thiab high-frequency vuam raws li sib txawv frequencies. High-frequency welding yog tsuas yog siv rau kev tsim cov yeeb nkab nyias-walled steel los yog cov phab ntsa tuab tuab steel kav. High-frequency welding yog muab faib ua kev sib cuag vuam thiab inductive vuam. DC vuam feem ntau yog siv rau cov kav hlau me me.
Txawm hais tias ncaj nraim steel yeeb nkab vuam txheej txheem, cov kauj ruam tseem ceeb zoo sib xws:
1. Kev tshawb nrhiav phaj: Tom qab cov hlau phaj siv los tsim cov loj-caliber faus arc vuam ncaj seam steel kav nkag mus rau cov kab ntau lawm, ua ntej ua tag nrho pawg thawj coj saib ultrasonic;
2. Milling ntug: Muab ob npaug rau-sided milling ntawm ob sab ntawm cov hlau phaj los ntawm lub tshuab milling tuaj yeem ua tiav cov phaj dav uas yuav tsum tau ua, qhov sib npaug ntawm qhov sib npaug, thiab cov duab ntawm txoj kab nqes;
3. Pre-bending ntug: Siv lub tshuab ua ntej-bending ua ntej-bending ntawm ntug ntawm lub phaj kom cov ntug ntawm lub rooj tsavxwm muaj qhov nkhaus nkhaus;
4. Rau molding: Ua ntej ntawm tag nrho cov, ib nrab ntawm cov hlau phaj tom qab lub pre-curved steel phaj yog stamped ntau zaus ntawm lub JCO molding tshuab, nias nws mus rau hauv ib tug "J" zoo li, thiab ces ib nrab ntawm cov hlau phaj. kuj khoov, nias rau hauv "C" duab, thiab thaum kawg tsim qhov qhib qhib. "O" shape
5. Pre-welding: Ua cov txheej txheem ncaj seam welded steel kav thiab seams thiab siv roj tiv thaiv vuam (MAG) rau kev txuas txuas ntxiv;
6. Internal welding: Siv cov kab faus rau hauv arc vuam (txog plaub lub xov hlau) nyob rau sab hauv ntawm cov kav hlau ncaj;
7. Sab nraud welding: Siv cov kab faus cov arc vuam rau sab nraud ntawm stitched arc welded steel yeeb nkab rau vuam;
8. Ultrasonic soj ntsuam Ⅰ: 100% kev soj ntsuam ntawm lub latch weld thiab welded seams thiab welds nyob rau hauv ncaj seam welded steel kav;
9. X-ray kuaj Ⅰ: 100% X-ray industrial TV tshuaj xyuas ntawm welded seams sab hauv thiab sab nraud welds, siv cov duab ua haujlwm los xyuas kom meej qhov rhiab heev ntawm kev kuaj pom;
10. Kev nthuav dav: Tag nrho ntev ntawm qhov faus arc vuam ncaj seam steel yeeb nkab yog nthuav dav los txhim kho qhov loj thiab qhov tseeb ntawm cov yeeb nkab steel, thiab txhim kho qhov kev faib tawm ntawm kev ntxhov siab hauv cov yeeb nkab steel;
11. Kev ntsuas dej siab: Cov yeeb nkab steel tom qab lub taub tau nthuav dav ntawm lub tshuab kuaj hydraulic raug tshuaj xyuas kom ntseeg tau tias qhov ntsuas siab ntawm cov yeeb nkab steel kom ua tau raws li tus qauv yuav tsum tau ua. Lub tshuab muaj qhov tsis siv neeg kaw thiab cia muaj nuj nqi;
12. Inverted npoo: Cov yeeb nkab xaus ntawm lub raj tom qab kev tshuaj ntsuam xyuas kom tau raws li qhov yuav tsum tau ua ntawm cov yeeb nkab kawg qhov chaw nqes hav;
13. Ultrasonic xeem II: Ultrasonic tshuaj xyuas yog ua dua los xyuas qhov tsis xws luag uas ncaj seam welded steel kav yuav tsim tom qab lub cheeb thiab dej siab;
14. X-ray kuaj II: X-ray muaj TV tshuaj xyuas thiab cov yeeb nkab vuam seam filming ntawm cov kav hlau steel tom qab txoj kab uas hla thiab hydraulic xeem;
15. Tube-sab sib nqus hmoov kuaj: ua qhov kev tshuaj xyuas no kom pom lub raj-sab tsis xws luag;
16. Anti-corrosion thiab txheej: Cov kav hlau uas tsim nyog ua los tiv thaiv corrosion thiab txheej raws li cov neeg siv khoom xav tau.
