Cov txheej txheem steel yeeb nkab ntau lawm
1 Steel plate inspection: When the steel plate enters the production line, a comprehensive ultrasonic inspection of the raw materials for steel production is carried out first.
2 Ntxig ntug: Lub ntug milling tshuab ua tau raws li qhov yuav tsum tau ua ntawm lub rooj tsavxwm dav los ntawm kev txiav cov milling ob qhov ntev ntawm ob sab ntawm lub rooj tsavxwm. Lub ntug milling tshuab muaj kev ua haujlwm ntawm cov ntaub ntawv tsis siv neeg, thiab lub taub hau taug qab nrog qhov sib txawv profileing tuaj yeem milled raws li qhov roughness. Lub taub hau txoj hauj lwm cia li xyuas kom meej tias ob tog muaj tib lub swash phaj zoo li thiab loj.
3 Pre-bending: Siv lub pre-bender ua ntej- khoov ntug ntawm phaj. Sab bender ua ntej- khoov ntug ntawm lub phaj mus rau qhov tsim nyog arc los xyuas kom meej qhov geometry ntawm thaj chaw vuam, thiab tom qab ntawd npaj rau kev tsim, vuam txheej txheem thiab nthuav dav.
4 Forming: The multi-step JCO forming method is to form the plate step by step through the numerical control system to achieve the required circular shape. The deformation of each part of the steel is uniform, there is no obvious stress concentration, and the residual stress is evenly distributed. The JCO machine pre-bends the first half of the steel plate and presses it into a "J" shape after several steps, and then presses the other half of the same bent steel plate into a "C" shape, and finally forms an "O" shape opening.
5 Pre- vuam: Ob lub npoo ntawm cov yeeb nkab slotted yuav tsum tau welded ua ke los ntawm lub tshuab ua ntej- vuam los xyuas kom meej lub hauv paus rau qhov zoo ntawm sab hauv thiab sab nraud multi-wire submerged arc vuam. Nyob rau tib lub sijhawm, siab-lub zog txuas ntxiv ua haujlwm roj tiv thaiv arc vuam (MAG) yog siv rau ua ntej- vuam, uas ua kom muaj qhov zoo ntawm pre- vuam thiab nteg lub hauv paus zoo rau sab hauv thiab sab nraud welding.
6 Internal welding: Cov yeeb nkab yog welded los ntawm sab hauv cov yeeb nkab los ntawm multi- dhau submerged arc vuam, uas yog tus yam ntxwv ntawm high efficiency, tsis muaj porosity, tsawg slag, me me tawg, zoo mechanical zog ntawm pob qij txha, thiab yooj yim. tswj ntawm weld geometry.
7 External welding: Cov yeeb nkab yog welded los ntawm sab nraud ntawm cov yeeb nkab los ntawm multi-pass tandem submerged arc vuam
8 Ntawm -kab ultrasonic flaw detection I: 100 feem pua UT kev tshuaj xyuas tsis siv neeg yog ua nyob rau sab hauv thiab sab nraud longitudinal kev taw qhia ntawm weld thiab lub hauv paus hlau ntawm ob sab ntawm lub weld.
9. X-ray inspection Ⅰ: 100 percent inspection of industrial X-ray TV inside and outside the weld, using image processing system to ensure detection sensitivity.
10 Cov yeeb nkab nthuav dav: tag nrho- qhov ntev ntawm cov yeeb nkab nthuav dav ntawm cov yeeb nkab tuaj yeem txhim kho qhov tseeb qhov tseeb ntawm cov yeeb nkab thiab txhim kho cov kev ntxhov siab sab hauv.
11 Kev ntsuas dej siab: txoj kab uas hla ntawm cov yeeb nkab tom qab lub hauv paus expansion dej siab ntsuas ntawm lub tshuab ntsuas dej. Cov xovxwm hydraulic muaj qhov ua haujlwm ntawm kev kaw cia thiab khaws cia qhov ntsuas siab thiab lub sijhawm. Lub turbocharger tuaj yeem txhim kho kev tswj cov dej siab hauv lub sijhawm luv kom ua tau raws li cov qauv kev xav tau ntawm kev ntsuas siab thiab xyuas kom meej tias cov hlau zoo ua tau raws li qhov yuav tsum tau ua.
12. Chamfering: Cov yeeb nkab kawg beveling tshuab, qhov xav tau loj ntawm cov yeeb nkab kawg beveling, thiab kev ruaj ntseg zoo ntawm cov yeeb nkab taub qab vuam.
13 Ultrasonic flaw detection II: Ua UT kuaj pom ntawm lub hauv paus ntawm cov vuam thiab ob sab ntawm lub hauv paus hlau dua. Qhov kev kuaj pom qhov tsis zoo thiab qhov kev ncua ntev yog nthuav dav, thiab qhov tsis xws luag yuav tshwm sim tom qab dej siab.
14. X-ray tshuaj ntsuam II: X-ray industrial TV tshuaj xyuas thiab yeeb nkab kawg weld filming yuav tsum tau nqa tawm rau txhua cov yeeb nkab tom qab qhov expansion hydraulic siab test. Guarantee qhov zoo ntawm cov kav dej steel
15. Kev tshuaj xyuas cov khoom sib nqus: Qhov kev tshuaj xyuas no yog txhawm rau txheeb xyuas qhov tsis zoo ntawm cov yeeb nkab kawg
16 Anti-corrosion and coating: According to the user's requirements, the anti-corrosion and coating test of the steel pipe is qualified. After galvanizing (HDG), the outer surface of all poles should be painted with coal tar paint. The zinc layer will be checked by physical and chemical tests.
