Iinkcukacha ezisemgangathweni

I-API 5L ngokubanzi ibhekisa kumgangatho wokusebenza kombhobho womgca. Umbhobho womgca uquka imibhobho yentsimbi engenamthungo kunye nemibhobho yentsimbi edibeneyo. Okwangoku, iintlobo zemibhobho yentsimbi edibeneyo esetyenziswa rhoqo kwimibhobho yeoyile ziquka umbhobho we-spiral submerged arc welded (SSAW), umbhobho we-straight seam submerged arc welded (LSAW), kunye nombhobho we-electric resistance welded (ERW). Imibhobho yentsimbi engenamthungo ikhethwa ngokubanzi xa ububanzi bombhobho bungaphantsi kwe-152mm.

Iipayipi zentsimbi ze-GB/T 9711-2011 ezisemgangathweni kazwelonke zeenkqubo zothutho lwemibhobho yeshishini leoyile negesi zihlanganiswe ngokusekwe kwi-API 5L.

I-GB/T 9711-2011 ichaza iimfuno zokwenziwa kwemibhobho yentsimbi engenamthungo kunye nemibhobho yentsimbi edibeneyo kumanqanaba amabini enkcazo yemveliso (i-PSL1 kunye ne-PSL2) esetyenziswa kwiinkqubo zothutho lwemibhobho ye-oyile negesi kwimizi-mveliso. Ke ngoko, lo mgangatho usebenza kuphela kwimibhobho yentsimbi engenamthungo kunye nemibhobho yentsimbi edibeneyo yothutho lwe-oyile negesi, kwaye awusebenzi kwimibhobho yesinyithi esenziwe ngentsimbi.

Ibanga lentsimbi

Amanqanaba entsimbi yezinto eziluhlazaI-API 5Limibhobho yentsimbi ibandakanya i-GR.B,X42, X46, X52, X56, X60, X70, X80, njl. Amanqanaba ahlukeneyo entsimbi yemibhobho yentsimbi aneemfuno ezahlukeneyo zezinto ezikrwada kunye nemveliso, kodwa ixabiso lekhabhoni elilinganayo phakathi kwamanqanaba ahlukeneyo entsimbi lilawulwa ngokungqongqo.

Umgangatho oMgangatho

Kwimigangatho yepayipi yentsimbi ye-API 5L, imigangatho yomgangatho (okanye iimfuno) yepayipi yentsimbi yahlulwe yaba yi-PSL1 kunye ne-PSL2. I-PSL sisifinyezo senqanaba leenkcukacha zemveliso.

I-PSL1 ibonelela ngeemfuno zomgangatho wepayipi yentsimbi yepayipi ngokubanzi; i-PSL2 yongeza iimfuneko eziyimfuneko zokwakheka kweekhemikhali, ukuqina kwe-notch, iimpawu zokuqina kunye ne-NDE eyongezelelweyo.

Udidi lwepayipi yentsimbi yombhobho wentsimbi wePSL1 (igama elibonisa inqanaba lamandla ombhobho wentsimbi, njenge-L290, 290 libhekisa kumandla amancinci okukhupha umbhobho womzimba yi-290MPa) kwaye udidi lwentsimbi (okanye udidi, olufana ne-X42, apho i-42 imele amandla amancinci okukhupha umbhobho wombane okanye isangqa esinyukayo. Amandla amancinci okukhupha umbhobho wombane ...

Iipayipi zentsimbi zePSL2 zenziwe ngoonobumba okanye indibaniselwano yoonobumba kunye namanani asetyenziselwa ukuchonga inqanaba lamandla ombhobho wentsimbi. Igama lentsimbi (udidi lwentsimbi) linxulumene nokwakheka kweekhemikhali zentsimbi. Ikwabandakanya unobumba omnye (R, N, Q okanye M) owenza isimamva, esibonisa imeko yokuhanjiswa. KwiPSL2, emva kwemeko yokuhanjiswa, kukwakho nonobumba u-S (indawo yenkonzo ye-asidi) okanye u-O (indawo yenkonzo yaselwandle) obonisa imeko yenkonzo.

Uthelekiso oluMgangatho oMgangatho

1. Umgangatho womgangatho wePSL2 uphezulu kunowePSL1. La manqanaba mabini eenkcukacha awanazo nje kuphela iimfuno ezahlukeneyo zokuhlolwa, kodwa akwanazo neemfuno ezahlukeneyo zokwakheka kweekhemikhali kunye neepropati zoomatshini. Ke ngoko, xa uodola ngokwe-API 5L, imiqathango kwisivumelwano akufuneki ibonise kuphela iinkcukacha, amanqanaba entsimbi, njl. Ukongeza kwizalathisi eziqhelekileyo, inqanaba leenkcukacha zemveliso kufuneka liboniswe, oko kukuthi, iPSL1 okanye iPSL2. I-PSL2 ingqongqo kunePSL1 ngokweekhemikhali, iipropati zokutsalwa, amandla empembelelo, uvavanyo olungonakalisiyo kunye nezinye izalathisi.

2. I-PSL1 ayifuni ukusebenza kakuhle. Kuzo zonke iiklasi zentsimbi ze-PSL2 ngaphandle kweklasi yentsimbi ye-X80, ubungakanani obupheleleyo yi-0℃ Akv avareji: i-longitudinal ≥101J, i-transverse ≥68J.

3. Imibhobho yomgca kufuneka ivavanywe uxinzelelo lwe-hydraulic nganye nganye, kwaye umgangatho awuchazi ukuba kuvunyelwe ukutshintsha uxinzelelo lwamanzi olungonakalisiyo. Oku kukwangumahluko omkhulu phakathi kwemigangatho ye-API kunye nemigangatho yaseTshayina. I-PSL1 ayifuni kuhlolwa okungonakalisiyo, ngelixa i-PSL2 ifuna ukuhlolwa okungonakalisiyo nganye nganye.