I-STPT 370ludidi lomgangatho waseJapan iJIS G 3456 kwimibhobho yentsimbi yekhabhoni, esetyenziselwa imibhobho yoxinzelelo kwiindawo ezinamaqondo obushushu angaphezu kwama-350°C. Inokuba yimibhobho engenamthungo okanye edibeneyo kusetyenziswa inkqubo ye-electric resistance welding (ERW). Iimpawu zoomatshini zezinto ze-STPT 370 ngamandla okutsalwa amancinci angama-370 MPa kunye namandla okuvelisa amancinci angama-215 MPa.
Ukuba ufuna umenzi kunye nomthengisi weepayipi zentsimbi ezihlangabezana nomgangatho we-JIS G 3456, ke thina singamaqabane osifunayo. Nxibelelana nathi namhlanje kwaye siya kukuvuyela ukukunceda!
Ifanelekile kwiidayamitha zangaphandle eziyi-10.5 mm - 660.4 mm (6A - 650A) (1/8B - 26B).
U-A kunye no-B ziindlela ezimbini zokubonisa ububanzi obuqhelekileyo kumgangatho waseJapan. Ngokukodwa, u-A uhambelana ne-DN, ngelixa u-B uhambelana ne-NPS.
I-JIS G 3456 STPT 370 ingenziwa kusetyenziswaingenamthungoinkqubo yokuvelisa okanyeukuwelda ukumelana nombane(ERW) inkqubo.
Inkqubo yokuvelisa ikwahambelana neendlela ezahlukeneyo zokugqiba ukuze kuhlangatyezwane neemeko ezahlukeneyo zokusetyenziswa.
| Uphawu lwebanga | Uphawu lwenkqubo yokuvelisa | |
| Inkqubo yokuvelisa imibhobho | Indlela yokugqiba | |
| I-JIS G 3456 STPT370 | Ingenamthungo: S | Igqityiwe ngobushushu: H Igqityiwe ngokubandayo: C |
| Ukumelana kombane okudibeneyo: E I-butt welded: B | Igqityiwe ngobushushu: H Igqityiwe ngokubandayo: C Njengoko ukumelana nombane kudityanisiwe: G | |
I-STPT 370 kufuneka inyangwe ngobushushu.
1. Umbhobho wentsimbi engenamthungo ogqityiweyo ngobushushu: Njengoko wenziwe, ukufakelwa okanye ukuhlengahlengisa kungasetyenziswa njengoko kufuneka;
2. Umbhobho wentsimbi engenamthungo ogqityiweyo ngokubanda: Ukunciphisa okanye ukulungisa ubushushu obuphantsi;
3. Umbhobho wentsimbi otshisiweyo ophekiweyo ngombane oshushu: Njengoko wenziwe, i-annealing okanye i-normalizing yobushushu obuphantsi ingasetyenziswa njengoko kufuneka;
4. Ukumelana nombane okugqityiweyo kubanda kunye nombhobho wentsimbi odibeneyo njengokumelana nombane: Ukunciphisa okanye ukuqhelelanisa ubushushu obuphantsi.
| Uphawu lwebanga | C | Si | Mn | P | S |
| I-JIS G 3456 STPT370 | Ubuninzi be-0.25% | 0.10 - 0.35% | 0.30 - 0.90% | Ubuninzi be-0.035% | Ubuninzi be-0.035% |
Ukuba kuyimfuneko, izinto ezongezelelweyo zingongezwa.
Amandla okuThamba, iNqanaba lokuKhula okanye uXinzelelo loBungqina, kunye nobude
Ipropati yokuThabathisa
Ifanelekile kwiipayipi ezinobubanzi obungaphandle obungaphezulu kwama-60.5 mm.
Isampuli ibekwa phakathi kwamaqonga amabini ize ithambe. Xa umgama phakathi kwamaplati amabini ufikelelaH, akukho mifantu kumphezulu wesampuli yombhobho wentsimbi.
H = 1.08t/(0.08+ t/D)
н: umgama phakathi kweeplatens (mm);
t: ubukhulu bodonga lombhobho (mm);
D: ububanzi bangaphandle bombhobho (mm);
Ukugoba
Ifanelekile kwiipayipi zentsimbi ezinobubanzi obungaphandle obuyi-60.5 mm okanye ngaphantsi.
Xa isampuli igobile ijikeleze i-mandrel ukuya kwi-radius yangaphakathi ephindwe ka-6 ububanzi bangaphandle bombhobho, isampuli iyahlolwa kwaye akukho mifantu ifunyenweyo.
| Ubukhulu bodonga oluqhelekileyo | Inombolo yeshedyuli: Sch | |||||||||
| 10 | 20 | 30 | 40 | 60 | 80 | 100 | 120 | 140 | 160 | |
| Uxinzelelo oluphantsi lovavanyo lwe-hydraulic, i-Mpa | 2.0 | 3.5 | 5.0 | 6.0 | 9.0 | 12 | 15 | 18 | 20 | 20 |
Xa ububanzi bangaphandle kunye nobukhulu bodonga lombhobho wentsimbi bungengobukhulu obuqhelekileyo, ezi ndlela zilandelayo zingasetyenziselwa ukumisela umgangatho ofanelekileyo weenkcukacha:
Okokuqala, khetha ibakala leshedyuli esemgangathweni elikufutshane nobukhulu obungengobuqhelekileyo; okwesibini, misela ibakala leenkcukacha ngokubala ixabiso le-P.
Kuzo zombini iindlela, ixabiso elincinci kufuneka likhethwe njengomgangatho wokugqibela weenkcukacha.
P = 2st/D
P: uxinzelelo lovavanyo (MPa);
t: ubukhulu bodonga lombhobho (mm);
D: ububanzi bangaphandle bombhobho (mm);
s: 60% yexabiso eliphantsi elichaziweyo le-yield point okanye uxinzelelo lobungqina;
Iindlela zovavanyo ezingaqhelekanga ziquka uvavanyo lwe-ultrasound (UT) kunye novavanyo lwe-eddy current (ET).
Xa kusenziwa uhlolo lwe-ultrasonic, kufuneka kubhekiswe kwi-JIS G 0582, kwaye xa iziphumo zovavanyo zilingana okanye zidlula umgangatho wesalathiso weklasi ye-UD, oko kuthathwa njengokusilela.
Xa kusenziwa uhlolo lwe-eddy current, kufuneka kubhekiswe kwi-JIS G 0583. Xa iziphumo zovavanyo zilingana okanye zidlula umgangatho wesalathiso weklasi ye-EY, zithathwa njengezingafanelekanga.
Ubukhulu obuqhelekileyo kunye nobukhulu bodonga obuphakathi kwe-10.5 mm ukuya kwi-660.4 mm budweliswe kwi-JIS G 3456, eyiitheyibhile yobunzima bombhobho wentsimbi kunye neshedyuli ehambelanayo No.
Ishedyuli 10,Ishedyuli 20,Ishedyuli 30,Ishedyuli 40,Ishedyuli 60,Ishedyuli 80,Ishedyuli 100,Ishedyuli 120,Ishedyuli 140,Ishedyuli 160.
Ukususela oko yasekwa ngo-2014,Intsimbi yeBotopiye yaba ngumthengisi ophambili wemibhobho yentsimbi yekhabhoni eMntla China, eyaziwa ngenkonzo egqwesileyo, iimveliso ezikumgangatho ophezulu, kunye nezisombululo ezibanzi.
Le nkampani inikezela ngeendidi ngeendidi zeepayipi zentsimbi yekhabhoni kunye neemveliso ezinxulumene nazo, kuquka ipayipi yentsimbi engenamthungo, i-ERW, i-LSAW, kunye ne-SSAW, kunye noluhlu olupheleleyo lwee-fittings zepayipi kunye nee-flanges. Iimveliso zayo ezikhethekileyo ziquka ii-alloys ezikumgangatho ophezulu kunye neentsimbi ezingenasici ze-austenitic, ezenzelwe ukuhlangabezana neemfuno zeeprojekthi ezahlukeneyo zepayipi.
Nceda uzive ukhululekile ukunxibelelana nathi kwaye siya kukuvuyela ukuphendula imibuzo yakho.
