I-STPT 370iyizinga le-JIS G 3456 ejwayelekile yaseJapan yamapayipi ensimbi yekhabhoni, esetshenziselwa amapayipi okucindezela ezindaweni ezinamazinga okushisa angaphezu kuka-350°C. Kungaba amapayipi angenamthungo noma ahlanganisiwe kusetshenziswa inqubo yokushisela yokumelana kagesi (ERW). Izakhiwo zomshini zezinto ze-STPT 370 zingamandla okudonsa okungenani angu-370 MPa kanye namandla okukhiqiza okungenani angu-215 MPa.
Uma ufuna umenzi kanye nomhlinzeki wamapayipi ensimbi ahlangabezana nezinga le-JIS G 3456, khona-ke singabalingani omfunayo. Xhumana nathi namuhla futhi sizojabula ukukusiza!
Ifanele ububanzi bangaphandle obungu-10.5 mm - 660.4 mm (6A - 650A) (1/8B - 26B).
U-A no-B kuyizindlela ezimbili zokuveza ububanzi obujwayelekile ku-standard yesiJapane. Ngokuqondile, u-A uhambelana ne-DN, kanti u-B uhambelana ne-NPS.
I-JIS G 3456 STPT 370 ingakhiqizwa kusetshenziswangaphandle komthungoinqubo yokukhiqiza nomaukushisela ukumelana kagesiinqubo (ERW).
Inqubo yokukhiqiza ihambisana nezindlela ezahlukene zokuqeda ukuze kuhlangatshezwane nezimo ezahlukene zokusetshenziswa.
| Uphawu lwebanga | Uphawu lwenqubo yokukhiqiza | |
| Inqubo yokukhiqiza amapayipi | Indlela yokuqeda | |
| I-JIS G 3456 STPT370 | Akunamthungo: S | Okuqediwe ngokushisa: H Kuqediwe ngokubandayo: C |
| Ukumelana kukagesi okuhlanganisiwe: E I-Butt ehlanganisiwe: B | Okuqediwe ngokushisa: H Kuqediwe ngokubandayo: C Njengoba ukumelana kukagesi kuhlanganisiwe: G | |
I-STPT 370 kumele iphathwe ngokushisa.
1. Ipayipi lensimbi elingenamthungo eliqediwe ngokushisa: Njengoba lenziwe, ukunamathisela noma ukujwayeza izinga lokushisa eliphansi kungasetshenziswa njengoba kudingeka;
2. Ipayipi lensimbi elingenamthungo eliqediwe ngokubandayo: Ukuqinisa noma ukulungisa izinga lokushisa eliphansi;
3. Ipayipi lensimbi elihlanganisiwe eliqediwe ngokumelana nogesi eliqediwe ngokushisa: Njengoba lenziwe, ukunamathisela noma ukujwayeza okuphansi kungasetshenziswa njengoba kudingeka;
4. Ukumelana kukagesi okuqediwe ngokubandayo kanye nepayipi lensimbi elihlanganisiwe njengokumelana kukagesi: Ukuqinisa noma ukujwayeza izinga lokushisa eliphansi.
| Uphawu lwebanga | C | Si | Mn | P | S |
| I-JIS G 3456 STPT370 | Ubuningi obungu-0.25% | 0.10 - 0.35% | 0.30 - 0.90% | Ubuningi obungu-0.035% | Ubuningi obungu-0.035% |
Uma kudingeka, izinto ezengeziwe zingangezwa.
Amandla Okuqina, Ukucindezeleka Kokukhuphula Isilinganiso Noma Ubufakazi, kanye Nobude
Impahla Ethambile
Ifanele amapayipi anobubanzi bangaphandle obungaphezu kuka-60.5 mm.
Isampula ibekwa phakathi kwamapulatifomu amabili bese ibekwa isicaba. Lapho ibanga eliphakathi kwamapuleti amabili lifikaH, azikho izimfa ebusweni besampula yepayipi lensimbi.
H = 1.08t/(0.08+ t/D)
н: ibanga phakathi kwamapuleti (mm);
t: ubukhulu bodonga lwepayipi (mm);
D: ububanzi bangaphandle bepayipi (mm);
Ukugoba
Ifanele amapayipi ensimbi anobubanzi bangaphandle obungu-60.5 mm noma ngaphansi.
Uma isampula igobile izungeze i-mandrel ibe yi-radius yangaphakathi ephindwe kasithupha kunobubanzi bangaphandle bepayipi, isampula iyahlolwa futhi akukho mifantu etholakala.
| Ukujiya kodonga okujwayelekile | Inombolo yeshejuli: Sch | |||||||||
| 10 | 20 | 30 | 40 | 60 | 80 | 100 | 120 | 140 | 160 | |
| Umfutho wokuhlola omncane we-hydraulic, i-Mpa | 2.0 | 3.5 | 5.0 | 6.0 | 9.0 | 12 | 15 | 18 | 20 | 20 |
Uma ububanzi bangaphandle kanye nobukhulu bodonga lwepayipi lensimbi kungebona osayizi abajwayelekile, izindlela ezilandelayo zingasetshenziswa ukunquma ibanga elifanele lokucaciswa:
Okokuqala, khetha ibanga leshejuli elijwayelekile eliseduze nosayizi ongewona ojwayelekile; okwesibili, nquma ibanga lokucaciswa ngokubala inani le-P.
Kuzo zombili izindlela, inani elincane kufanele likhethwe njengebanga lokugcina lokucaciswa.
P = 2st/D
P: ingcindezi yokuhlola (i-MPa);
t: ubukhulu bodonga lwepayipi (mm);
D: ububanzi bangaphandle bepayipi (mm);
s: 60% yenani elincane elibekiwe lephuzu lokukhiqiza noma ukucindezeleka kobufakazi;
Izindlela zokuhlola ezivamile ezingabhubhisi zifaka phakathi ukuhlolwa kwe-ultrasonic (UT) kanye nokuhlolwa kwamanje kwe-eddy (ET).
Uma kwenziwa ukuhlolwa kwe-ultrasonic, kufanele kubhekiselwe ku-JIS G 0582, futhi uma umphumela wokuhlola ulingana noma udlula indinganiso yokubhekisela yekilasi le-UD, kubhekwa njengokwehluleka.
Uma kwenziwa ukuhlolwa kwe-eddy current, kufanele kubhekwe ku-JIS G 0583. Uma umphumela wokuhlola ulingana noma udlula indinganiso yokubhekisela yekilasi le-EY, kubhekwa njengongafaneleki.
Ubukhulu obujwayelekile kanye nobukhulu bodonga obuphakathi kuka-10.5 mm kuya ku-660.4 mm kubhalwe ku-JIS G 3456, okuyi-itafula lesisindo sepayipi lensimbi kanye neshejuli ehambisanayo No.
Ishejuli 10,Ishejuli 20,Ishejuli 30,Ishejuli 40,Ishejuli 60,Ishejuli 80,Ishejuli 100,Ishejuli 120,Ishejuli 140,Ishejuli 160.
Selokhu yasungulwa ngo-2014,Insimbi yeBotopisibe ngumhlinzeki ohamba phambili wamapayipi ensimbi yekhabhoni eNyakatho yeShayina, eyaziwa ngenkonzo enhle kakhulu, imikhiqizo esezingeni eliphezulu, kanye nezixazululo eziphelele.
Le nkampani inikeza amapayipi ahlukahlukene ensimbi yekhabhoni kanye nemikhiqizo ehlobene nayo, kufaka phakathi ipayipi lensimbi elingenamthungo, i-ERW, i-LSAW, kanye ne-SSAW, kanye nohlu oluphelele lwezihlanganisi zamapayipi nama-flange. Imikhiqizo yayo ekhethekile ifaka phakathi ama-alloy ebanga eliphezulu kanye nezinsimbi ezingagqwali ze-austenitic, ezenzelwe ukuhlangabezana nezidingo zamaphrojekthi ahlukahlukene amapayipi.
Sicela uzizwe ukhululekile ukuxhumana nathi futhi sizojabula ukuphendula imibuzo yakho.
