Cov txheej txheem tsim khoom ntawm API 5L X52 roj av steel yeeb nkab feem ntau suav nrog cov kauj ruam hauv qab no:
1. Kev npaj ntawm lub raj khoob: nrog rau kev txiav ntawm lub raj dawb paug, cua sov ntawm lub raj dawb paug thiab perforation ntawm lub raj dawb paug.
1.1 Txiav ntawm lub raj tsis muaj: txiav cov hlau raj dawb rau hauv qhov ntev uas yuav tsum tau ua.
1.2 Cua sov ntawm lub raj tsis muaj: cua sov lub raj txiav kom ncav cuag qhov kub thiab txias uas yuav tsum tau ua rau perforation,
2. Kev tsim cov yeeb nkab steel: suav nrog dov ntawm cov yeeb nkab steel thiab sizing ntawm cov yeeb nkab steel.
2.1 Rolling ntawm cov yeeb nkab steel: tsim cov yeeb nkab steel los ntawm lub raj khoob los ntawm cov txheej txheem dov,
2.2 Sizing ntawm cov yeeb nkab steel: kom ntseeg tau tias cov kab hlau sab nraud ntawm cov yeeb nkab steel ua tau raws li cov qauv kev cai los ntawm cov txheej txheem sizing.
3. Kev kho cua sov ntawm cov yeeb nkab steel: suav nrog annealing ntawm steel yeeb nkab thiab quenching thiab tempering ntawm steel yeeb nkab
3.1 Annealing ntawm cov yeeb nkab steel: annealing ntawm steel yeeb nkab kom tshem tawm cov kev ntxhov siab sab hauv.
3.2 quenching thiab tempering ntawm cov yeeb nkab steel: quenching thiab tempering ntawm cov yeeb nkab steel los txhim kho nws cov khoom siv kho tshuab.
4. Kev kho deg ntawm cov kav dej steel: suav nrog kev khaws cov kav hlau thiab phosphating ntawm cov kav hlau steel.
4.1 Pickling ntawm steel kav: pickling ntawm steel kav kom tshem tawm cov nto oxides thiab impurities.
4.2 Phosphating ntawm steel kav: phosphating ntawm steel kav los txhim kho lawv corrosion kuj.
5. Kev tshuaj xyuas thiab ntim cov yeeb nkab steel: suav nrog kev tshuaj xyuas qhov ntev ntawm cov kav hlau, kev tshuaj xyuas saum npoo ntawm cov kav hlau thiab ntim cov kav hlau.
5.1 Kev tshuaj xyuas qhov ntev ntawm cov kav hlau: qhov ntsuas qhov ntsuas ntawm cov kav hlau kom paub meej tias lawv qhov ntev raws li cov qauv yuav tsum tau ua.
5.2 Kev tshuaj xyuas qhov chaw ntawm cov kav hlau: kev tshuaj xyuas saum npoo ntawm cov kav hlau kom paub meej tias lawv qhov chaw zoo raws li cov qauv kev cai
API 5L L360 Seamless Gas Line Pipe Tshuaj muaj pes tsawg leeg
| Gr. l360 ua | PSL-1 | PSL-2 |
| C | 0.26 | 0.22 |
| Mn | 1.40 | 1.40 |
| P | 0.03 | 0.025 |
| S | 0.03 | 0.015 |
| V | d | d |
| Nb | d | d |
| Ti | d | d |
API 5L L360 Seamless Dub Hlau Yeeb Nkab
