I-Spiral Welded Steel Pipe for Underground Natural Gas Pipe

I-Spiral Welded Steel Umbhobho woMbhobho weGesi yeNdalo oPhantsi komhlaba oFakelwe umfanekiso

Inkcazelo emfutshane:

Olu luhlu lubandakanya amabakala amahlanu ombane-fusion (arc)-welded helical-seam steel pipe.Umbhobho wenzelwe ukuhambisa ulwelo, igesi okanye umphunga.

Ngemigca yemveliso ye-13 yombhobho wentsimbi ejikelezayo, iCangzhou Spiral Steel pipes group Co., Ltd.

Thumela i-imeyile kuthi

Iinkcukacha zeMveliso

Iithegi zeMveliso

Yazisa:

Imibhobho yegesi yendalo engaphantsi komhlaba idlala indima ebalulekileyo ekuziseni obu butyebi buxabisekileyo kumakhaya, kumashishini nakwimizi-mveliso.Ukuqinisekisa ukhuseleko kunye nokusebenza kakuhle kwale mibhobho, kubalulekile ukusebenzisa izinto ezichanekileyo kunye neenkqubo ze-welding ngexesha lokwakha.Siza kuphonononga ukubaluleka kombhobho wentsimbi odityanisiweyo kunye nokubaluleka kokulandela iinkqubo ezifanelekileyo zokudibanisa umbhobho xa usebenza nayo.umbhobho wegesi yendalo ongaphantsi komhlaba.

Umbhobho odityanisiweyo weSpiral:

Umbhobho odityanisiweyo we-Spiral uthandwa ekwakhiweni kwemibhobho yegesi yendalo engaphantsi komhlaba ngenxa yamandla ayo endalo kunye nokuqina.Le mibhobho yenziwa ngokugoba umcu wentsimbi oqhubekayo ukuze ube ngqukuva uze uwudibanise ecaleni kwemithungo.Isiphumo semibhobho enamalungu anamandla, avaliweyo anokumelana noxinzelelo olubalulekileyo lwangaphandle kunye nokulungelelanisa ukunyakaza komhlaba.Esi sakhiwo esisodwa senzaumbhobho wentsimbi odityanisiweyoilungele imibhobho engaphantsi komhlaba apho uzinzo lubalulekile.

IPropati yoomatshini

	IBanga A	IBanga B	IBanga C	IBanga D	IBanga E
Amandla esivuno, min, Mpa(KSI)	330(48)	415(60)	415(60)	415(60)	445(66)
Amandla okuqina, min, Mpa(KSI)	205(30)	240(35)	290(42)	315(46)	360(52)

Ukuqulunqwa kwemichiza

Isiqalelo	Ukuqamba, Ubuninzi, %
Isiqalelo	IBanga A	IBanga B	IBanga C	IBanga D	IBanga E
Ikhabhoni	0.25	0.26	0.28	0.30	0.30
IManganese	1.00	1.00	1.20	1.30	1.40
Iphosphorus	0.035	0.035	0.035	0.035	0.035
Isulfure	0.035	0.035	0.035	0.035	0.035

Uvavanyo lweHydrostatic

Ubude bombhobho ngamnye buya kuvavanywa ngumenzi kuxinzelelo lwe-hydrostatic oluya kuvelisa eludongeni lombhobho uxinzelelo olungekho ngaphantsi kwama-60% obona buncinci buchaziweyo bamandla esivuno kwindawo yobushushu begumbi.Uxinzelelo luya kumiselwa ngolu nxaki lulandelayo:
P=2St/D

Ukwahluka okuvumelekileyo kubunzima kunye nemilinganiselo

Ubude bombhobho ngamnye buya kulinganiswa ngokwahlukileyo kwaye ubunzima bawo abuyi kwahluka ngaphezu kwe-10% ngaphezulu okanye i-5.5% phantsi kobunzima bethiyori, kubalwe kusetyenziswa ubude bayo kunye nobunzima bayo ngobude beyunithi.
Idayamitha yangaphandle ayisayi kwahluka ngaphezu kwe ±1% kwidayamitha echaziweyo yangaphandle echaziweyo.
Ubunzima bodonga nakweyiphi na indawo abuyi kuba ngaphezu kwe-12.5% phantsi kobukhulu bodonga oluchaziweyo.

Ubude

Ubude obubodwa obungakhethiyo: 16 ukuya ku-25ft (4.88 ukuya ku-7.62m)
Ubude obuphindwe kabini obungenamkhethe: ngaphezulu kwe-25ft ukuya kwi-35ft (7.62 ukuya kwi-10.67m)
Ubude obufanayo: ukwahluka okuvumelekileyo ±1in

Iyaphela

Iimfumba zemibhobho ziya kubonelelwa ngeziphelo ezicacileyo, kwaye i-burrs ekupheleni iya kususwa.
Xa isiphelo sombhobho esichazwe ukuba sibe yi-bevel siphela, i-angle iya kuba ngama-30 ukuya kuma-35 degrees

Iinkqubo zokuwelda ngemibhobho:

Ngokufanelekileyoiinkqubo ukuwelda imibhobhozibalulekile ekomeleleni nakukhuseleko lwemibhobho yerhasi yendalo ephantsi komhlaba.Nantsi imiba embalwa ebalulekileyo ekufuneka uyiqwalasele:

1. Iziqinisekiso zeWelder:Abashiseli abafanelekileyo nabanamava kufuneka baqeshwe, baqinisekise ukuba banezatifikethi eziyimfuneko kunye nobuchule bokusingatha iinkqubo zokuwelda ezifunekayo kwimibhobho yegesi yendalo.Oku kunceda ukunciphisa umngcipheko weziphene ze-welding kunye nokuvuza okunokwenzeka.

2. Ukulungiswa okudibeneyo kunye nokucoca:Ukulungiswa ngokufanelekileyo ngokudibeneyo kubalulekile ngaphambi kwe-welding.Oku kubandakanya ukususa nayiphi na inkunkuma, i-debris okanye i-contamines enokuthi ichaphazele kakubi ingqibelelo ye-weld.Ukongeza, ukubethelela imiphetho yombhobho kunceda ekudaleni umanyano oludityanisiweyo oluqinileyo.

3. Ubuchule bokuwelda kunye neeparamitha:Ubuchule bokuwelda obuchanekileyo kunye neeparamitha kufuneka zilandelwe ukufumana i-welds ephezulu.Inkqubo ye-welding kufuneka iqwalasele izinto ezifana nobukhulu bombhobho, indawo ye-welding, ukubunjwa kwegesi, njl. Kucetyiswa ukuba kusetyenziswe iinkqubo ze-welding ezizenzekelayo ezifana ne-gas metal arc welding (GMAW) okanye i-arc welding efakwe emanzini (SAW) ukuqinisekisa iziphumo ezihambelanayo kunye nokunciphisa abantu. impazamo.

4. Ukuhlolwa noVavanyo:Ukuhlolwa ngokucokisekileyo kunye nokuvavanywa kwe-weld kubalulekile ukuqinisekisa umgangatho wayo kunye nokuthembeka.Ubuchwephesha obufana novavanyo olungonakalisi (NDT), kubandakanywa i-X-ray okanye uvavanyo lwe-ultrasonic, lunokubona naziphi na iziphene ezinokuthi zibeke esichengeni ukuthembeka kwexesha elide lombhobho.

Ukuququmbela:

Ukwakhiwa kwemibhobho yerhasi yendalo engaphantsi komhlaba kusetyenziswa umbhobho wentsimbi odityanisiweyo ofuna ukuthotyelwa kwemigaqo yokuwelda kwemibhobho efanelekileyo.Ngokuqesha abachwephesha abaqeqeshiweyo, ukulungiselela ngokucokisekileyo amalunga, ukulandela iindlela ezifanelekileyo zokuwelda, nokwenza uhlolo olucokisekileyo, sinokuqinisekisa ukhuseleko, ukuqina, kunye nokusebenza kakuhle kwale mibhobho.Ngokuqwalasela ngenyameko iinkcukacha kwinkqubo ye-welding, singakwazi ukuhambisa igesi yendalo ngokuzithemba ukuhlangabezana neemfuno zamandla kuluntu lwethu ngelixa sibeka phambili impilo-ntle yokusingqongileyo kunye nokhuseleko loluntu.