API 5L PSL2Ipayipi yentsimbi ye-LSAW
Ipayipi yensimbi ye-LSAW yenziwe ngesinyithi ngaphakathi kwindlu eveliswayo kwaye inyibilika kwisithando sombane, ephathwa nge-slags yokwenziwa kwaye iphoswe ngama-casters aqhubekayo.Inkqubo yokwenza isinyithi esetyenzisiweyo iqinisekisa ukufezekiswa kweekhemikhali zentsimbi ecocekileyo ngokubhekiselele kwi-sulfure kunye ne-phosphor iziqulatho ezibonelela nge-tensile ephezulu, i-ductility kunye neempawu zokumelana nokubola kwemibhobho ukuba iqhutywe kumaqondo okushisa aphantsi kwimidiya eyahlukeneyo ye-corrosion.
Ukuqengqeleka usebenzisa lokusila press ukugqobhoza kunye lokusila eqhubekayo ixhotyiswe mandrel esisigxina ivumela ukunyamezela umlinganiselo engqongqo ukuba ifunyenwe kwaye iqinisekisa ukunqongophala umzimba umbhobho kunye neziphene kumphezulu.
Ukuze kuphunyezwe i-tensile ephezulu kunye nentsimbi ye-ductility kunye nesakhiwo sayo esifunekayo, ukubonelela ukuxhathisa okuphezulu kwe-corrosion kwimidiya eyahlukeneyo ye-corrosion, imibhobho iphathwa ubushushu kwisithando somlilo esihamba ngekhompyutha.I-70% yeepayipi ze-oyile zixhomekeke kunyango lobushushu.
Imibhobho ihlolwe ukuhamba kwangaphakathi nangaphandle ngovavanyo oluzenzekelayo olungaphazamisi lwe-ultrasonic kunye nokuhlolwa kwe-electromagnetic.Umbhobho ugqiba ukuhlolwa emva kokuba i-beveling yenziwe ngokufunyaniswa kwesiphako semagnethi-fluoroscopic.
Ngelixa ukuvelisa imibhobho yomgca engenamthungo iqinisekisa ukuvavanywa kwezakhiwo zokunqanda ukubola nge-hydrogen ibandakanya indlela yokuqhekeka phantsi kwe-NACE MR 02-84 kunye ne-sulphide stress corrosion cracking method phantsi kwe-NACE MR 01-77.
Api 5l gr.bumbhobho ongenamthungo
Injongo ye-api 5l gr.b umbhobho ongenamthungo ilungele ukusetyenziswa ekuhambiseni irhasi, amanzi, kunye ne-oyile kuzo zombini ioyile kunye negesi yendalo.
ICandelo leMichiza
| Umgangatho | IBanga | C | Mnu | P | S |
| API 5L | B | ≤0.28 | ≤1.20 | ≤0.030 | ≤0.030 |
Iipropati zoomatshini
| Umgangatho | IBanga | yield strength(mpa) | amandla okuqina (mpa) | ubude (%) |
| API 5L | B | 241 | 414 | 21-27 |
API 5L X52 umbhobho wentsimbi
I-API 5l X52 ngumgangatho wemibhobho yeoli.
I-API SPEC 5L igubungela umbhobho womgca ongenamthungo kunye nombhobho womgca odibeneyo.
Ukusetyenziswa: kwi-oyile, ishishini legesi yendalo, ioksijini, amanzi, umbhobho weoyile;ingasetyenziswa kulwakhiwo lweziseko zobunjineli, ukulungiswa kwendlela yeLinyuan, imisele yamanzi, iplanti yehook yentsimbi, inqaba yamandla ombane aphezulu.
API 5L X52 ukwakheka kweekhemikhali
| Umgangatho | C(%) | iTi(%) | Mn(%) | P(%) | S(%) |
| API 5L X52 | 0.28 | 0.04 | 1.40 | 0.03 | 0.03 |
API 5L X52 mechanical protert
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Ixesha lokuposa: Oct-08-2019