Umbhobho womgca: Kukuthutha ioyile, igesi okanye amanzi akhutshwa emhlabeni ukuya kumashishini oshishino lweoyile negesi ngombhobho womgca. Imibhobho yomgca iquka imibhobho engenamthungo nedibeneyo. Iziphelo zemibhobho ziziphelo ezithe tyaba, iziphelo ezinemisonto kunye neziphelo zesokethi; iindlela zokudibanisa kukuwelda ekupheleni, uqhagamshelo lokudibanisa, uqhagamshelo lwesokethi, njl.njl.

Igama lesiTshayina Umbhobho womgca Inkcazo yombhobho womgca 10.3-2032×1.7-39.7mm Umgangatho wokusetyenziswaGB/T9711-2017/I-API SPEC 5LSebenzisa ukuthuthwa kwegesi, amanzi kunye neoyile kwishishini legesi yendalo

Isishwankathelo sombhobho womgca
Ukusetyenziswa: Isetyenziselwa ukuthuthwa kwegesi, amanzi kunye neoyile kwishishini leoyile negesi

I-API SPEC 5L-2018(Iinkcukacha zombhobho womgca) ziqokelelwe kwaye zipapashwe yi-American Petroleum Institute kwaye zisetyenziswa kakhulu kwihlabathi liphela.

Ngokweemfuno ezahlukeneyo zokusebenza kweGB/T9711-2017Imibhobho yentsimbi yepayipi, ukufudumala kunokwahlulwa zibe ziintlobo ezilandelayo ngokweqondo lobushushu bokufudumala:
1. Ubushushu obuphantsi (ii-degrees ezili-150-250)
Isakhiwo esifunyenwe ngokushisa okuphantsi yi-martensite eqinisiweyo. Injongo yaso kukunciphisa uxinzelelo lwangaphakathi lokucima kunye nokubuthathaka kwentsimbi eqinisiweyo ngelixa igcina ubunzima obuphezulu kunye nokumelana okuphezulu kokuguguleka kwentsimbi eqinisiweyo, ukuze kuthintelwe ukuqhekeka okanye ukonakala kwangaphambi kwexesha ngexesha lokusetyenziswa. Isetyenziswa kakhulu kwizixhobo ezahlukeneyo zokusika ezinekhabhoni ephezulu, izixhobo zokulinganisa, iipayipi zentsimbi zepayipi ze-GB/T9711, iibheringi eziqengqelekayo kunye neendawo ezinekhabhori, njl. Ubunzima emva kokushisa ngokubanzi yi-HRC58-64.
2. Ubushushu obuphakathi (ii-degrees ezingama-250-500)
Isakhiwo esifunyenwe ngokufudumala okuphakathi yi-troostite eqinisiweyo. Injongo yaso kukufumana amandla aphezulu okuvelisa, umda we-elastic kunye nokuqina okuphezulu. Ke ngoko, isetyenziselwa kakhulu unyango lweepayipi ezahlukeneyo zentsimbi ye-GB/T9711 kunye neenkuni ezisebenzayo ezishushu, kwaye ubunzima emva kokufudumala ngokubanzi yi-HRC35-50.
3. Ubushushu obuphezulu (500-650 degrees)
Isakhiwo esifunyenwe ngokushisa okuphezulu yi-troostite eqinisiweyo. Unyango lobushushu oludibanisa ukucima kunye nokushisa okuphezulu ludla ngokubizwa ngokuba yi-quenching kunye ne-tempering treatment, injongo yalo kukufumana iipropati ezipheleleyo zoomatshini ezinamandla amahle, ubulukhuni, i-plasticity kunye nokuqina. Ke ngoko, isetyenziswa kakhulu kwiindawo ezibalulekileyo zesakhiwo seemoto, iipayipi zentsimbi zepayipi ze-GB/T9711, izixhobo zoomatshini, njl.njl., ezifana neentonga zokudibanisa, iibholiti, iigiya kunye neeshafti. Ubulukhuni emva kokushisa ngokubanzi yi-HB200-330.
Amanqanaba aphambili emveliso yeepayipi zepayipi (API5L/GB/T 9711-2017):
1. I-PSL1: A/A210, B/L245,X42/L290, X46/L320,X52/L360, X56/L390,X60/L415, X65/L450, X70/L485, X80/L555
2. I-PSL2: BN/L245N, X42N/L290N, X46N/L320N, X52N/L360N, X56N/L390N, X60N/L415N, X65Q/L450Q, X70Q/L485 Q, X80Q/L555Q, X42Q/L290Q, X46Q/L320Q, X52Q/L360Q, X56Q/L390Q, X60Q/L415Q, X65Q/L450Q, X70Q/L485Q, X80Q/L555Q, X90Q/L625Q, X100Q/L690Q

3. Izinto zepayipi yeasidi: BNS/L245NS, X42NS/L290NS, X46NS/L320NS, X52NS/L360NS, X56NS/L390NS, X60NS /L415NS, X65QS/L450QS, X70QS/L485SQ, X80QS/L555QS, X42QS/L290QS, X46QS/L320QS, X52QS/L360QS, X56QS/L390QS, X60QS/L415QS, X65QS/L450QS, X70QS/L485QS
4. Izinto zoMbhobho we-Acid/Still Service Line: BNO/L245NO, X42NO/L290NO, X46NO/L320NO, X52NO/L360NO, X56NO/L390NO, X60NO/L415NO, X65QO/L450QO, X70QO/L485QO, X80QO/L555QO, X42QO/L290QO, X46QO/L320QO, X52QO/L360QO, X56QO/L390QO, X60QO/L415QO, X65QO/L450QO, X70QO/L485QO, X80QO/L555QO, X90QO/L625QO, X100QO/L690QO

Qaphela: Kukho oonobumba abaninzi abongezwa emvaUmgangatho we-API 5Luhlobo lwentsimbi yombhobho, olumele oku kulandelayo:
Ithetha ukuthini i-pipeline steel grade N? "N" imele ukuqhelelanisa unyango lobushushu
Ithetha ukuthini i-Q yentsimbi yombhobho? Igama elithi "Q" limele ukucima + unyango lobushushu olushushu
Ithetha ukuthini i-NS yentsimbi yombhobho? Igama elithi "NS" limele ukuqheleka kunye nokumelana ne-asidi kunye nokugqwala,
Ithetha ukuthini i-QS ye-pipeline steel grade? Igama elithi "QS" limele ukucima + unyango lobushushu oluthambileyo kunye nokumelana ne-asidi kunye nokugqwala