Ukuphucula imfezeko yoLwakhiwo: Umbhobho weSpiral Welded Carbon Steel kwinkqubo yeMetal Pipe Welding
Yazisa
Ubugcisa beumbhobho wesinyithi weldingidinga indibaniselwano ehambelanayo yesakhono, ukuchaneka kunye nemathiriyeli esemgangathweni ukuqinisekisa ukunyaniseka kwesakhiwo kwiintlobo ezahlukeneyo zezicelo.Phakathi kweentlobo ezininzi zombhobho, i-spiral welded carbon steel pipe, efana nombhobho we-X42 SSAW, idume ngamandla ayo aphezulu, ukuqina kunye nokusebenza kakuhle kweendleko.Kule bhlog, siza kuphonononga ukubaluleka kwemibhobho yentsimbi yekhabhoni edityanisiweyo kwi-spirally welded kwi-welding pipe yentsimbi, iphonononga inkqubo yayo yokuvelisa, izibonelelo kunye neendawo zokusetyenziswa.
IPropati yoomatshini
ibakala lentsimbi | ubuncinci amandla esivuno | Tensile strength | Ubuncinci bobude | Ubuncinci bempembelelo yamandla | ||||
Mpa | % | J | ||||||
Ubukhulu obucacisiweyo | Ubukhulu obucacisiweyo | Ubukhulu obucacisiweyo | kuvavanyo lobushushu be | |||||
mm | mm | mm | ||||||
<16 | >16≤40 | <3 | ≥3≤40 | ≤40 | -20℃ | 0℃ | 20℃ | |
S235JRH | 235 | 225 | 360-510 | 360-510 | 24 | - | - | 27 |
S275J0H | 275 | 265 | 430-580 | 410-560 | 20 | - | 27 | - |
S275J2H | 27 | - | - | |||||
S355J0H | 365 | 345 | 510-680 | 470-630 | 20 | - | 27 | - |
S355J2H | 27 | - | - | |||||
S355K2H | 40 | - | - |
Ukuqulunqwa kwemichiza
Ibakala Steel | Uhlobo lwe-de-oxidation a | % ngobunzima, ubukhulu | ||||||
Igama lentsimbi | Inombolo yentsimbi | C | C | Si | Mn | P | S | Nb |
S235JRH | 1.0039 | FF | 0,17 | - | 1,40 | 0,040 | 0,040 | 0.009 |
S275J0H | 1.0149 | FF | 0,20 | - | 1,50 | 0,035 | 0,035 | 0,009 |
S275J2H | 1.0138 | FF | 0,20 | - | 1,50 | 0,030 | 0,030 | - |
S355J0H | 1.0547 | FF | 0,22 | 0,55 | 1,60 | 0,035 | 0,035 | 0,009 |
S355J2H | 1.0576 | FF | 0,22 | 0,55 | 1,60 | 0,030 | 0,030 | - |
S355K2H | 1.0512 | FF | 0,22 | 0,55 | 1,60 | 0,030 | 0,030 | - |
a.Indlela ye-deoxidation yonyulwa ngolu hlobo lulandelayo: | ||||||||
FF: Intsimbi ebulewe ngokupheleleyo equlethe izinto ezibophelelayo zenitrogen ngokwezixa ezaneleyo zokubopha initrogen ekhoyo (umz. min. 0,020 % iyonke iAl okanye i-0,015 % enyibilikayo iAl). | ||||||||
b.Ixabiso eliphezulu le-nitrogen alisebenzi ukuba ukubunjwa kweekhemikhali kubonisa ubuncinane be-Al umxholo we-0,020 % kunye nomlinganiselo we-Al/N ubuncinane we-2: 1, okanye ukuba kukho ezinye izinto ezaneleyo ze-N-binding.Izinto ezibophelelayo ze-N ziya kubhalwa kuXwebhu loHlolo. |
Inkqubo yokuvelisa
Umbhobho odityanisiweyo weSpiral, okwaziwa ngokuba yi-SSAW (i-spiral submerged arc welded) umbhobho, wenziwe kusetyenziswa ubuchwephesha bokuwelda be-arc.Inkqubo iqala ngonyango lomphetho womcu wentsimbi obhijeneyo kwaye emva koko igobe umcu ube yimo ejikelezayo.Ukudibanisa i-arc ezenzekelayo ephantsi kwamanzi isetyenziselwa ukudibanisa imiphetho yemigca kunye, ukudala i-weld eqhubekayo kunye nobude bombhobho.Le ndlela iqinisekisa ukuba umdibaniso womelele kwaye uqinile ngelixa unciphisa iziphene kunye nokugcina ingqibelelo yesakhiwo.
Izinto eziluncedo kwi-spiral welded carbon steel pipe
1. Ukomelela kunye nokuqina:Umbhobho wentsimbi wekhabhoni odityanisiweyoiyaziwa ngamandla ayo aphezulu kunye nokuqina, okwenza ukuba ifaneleke izicelo ezifuna ukuxhathisa uxinzelelo oluphezulu kunye nokusebenza kwexesha elide.
2. Iindleko zokuSebenza: Le mibhobho inika isisombululo esinexabiso eliphantsi ngenxa yenkqubo yokuvelisa ngokufanelekileyo, iindleko eziphantsi zezinto ezibonakalayo, kunye nokunciphisa iimfuno zabasebenzi xa kuthelekiswa nezinye iintlobo zemibhobho.
3. I-Versatility: I-versatility ye-spiral welded carbon steel pipe ivumela ukuba isetyenziswe kuluhlu olubanzi lwezicelo, kubandakanywa ukuthuthwa kwamanzi, ukuthuthwa kwe-oyile kunye negesi, izakhiwo zokupakisha, iinkqubo zogutyulo kunye neenkqubo ezahlukeneyo zoshishino.
4. Ukuchaneka kwe-Dimensional: Inkqubo yokwenza i-spiral inokulawula ngokuchanekileyo ubukhulu kunye nobukhulu bodonga lombhobho, ukuqinisekisa ukuchaneka kunye nokufana kwemveliso.
Iindawo zesicelo
1. Ishishini le-oyile kunye negesi yendalo: Imibhobho ye-Spiral welded carbon steel isetyenziswa kakhulu kwishishini leoli kunye negesi yendalo, ngakumbi ekuthuthweni kweoli ekrwada, igesi yendalo kunye neemveliso zepetroleum.Amandla abo kunye nokukwazi ukumelana neendawo eziphakamileyo zoxinzelelo kubenza balungele imibhobho emide.
2. Ukuhanjiswa kwamanzi: Kungakhathaliseki ukuba unikezelo lwamanzi kamasipala okanye iinjongo zokunkcenkceshela, i-spiral welded carbon steel pipe inika isisombululo esihle ngenxa yokunganyangeki kokuhlwa, amandla kunye nokulula ukufakela.
3. Inkxaso yoLwakhiwo: Olu hlobo lombhobho lusetyenziswa kakhulu kushishino lokwakha ukunika inkxaso yezakhiwo, iibhulorho, iidokhi kunye nezinye iiprojekthi zeziseko zophuhliso.Ukuqina kwabo kunye nokuchasana nezinto zangaphandle kwenza ukuba bathembeke kwizicelo ezinjalo.
4. Izicelo zoShishino: Imibhobho ye-Spiral welded carbon steel isetyenziswa kwiindawo ezahlukeneyo zoshishino ezifana nokulungiswa kweekhemikhali, izityalo zamandla kunye nokusebenza kwemigodi ngenxa yokukwazi ukuphatha ukushisa okuphezulu, uxinzelelo kunye neendawo ezinobungozi.
Ukuququmbela
Spiral welded carbon steel umbhobho, ezifanaX42 SSAW umbhobho, iye yaguqula inkqubo yokudibanisa ipayipi yensimbi, izisa iinzuzo ezininzi kumashishini ahlukeneyo.Amandla abo, ukuqina, ukuphumelela kweendleko kunye nokuchaneka kwe-dimensional kuqinisekisa ukunyaniseka kwesakhiwo kwizicelo ezahlukeneyo.Ikhono lokumelana noxinzelelo olugqithisileyo, amaqondo obushushu kunye neendawo ezinobungozi zenza kube yinto efanelekileyo yokuhanjiswa kweoli kunye negesi, ukunikezelwa kwamanzi kunye namanye amacandelo oshishino.Ngoko ke, xa kuziwa kwi-welding yentsimbi yentsimbi, ukusetyenziswa kwe-spiral welded carbon steel pipes kuhlala kuyisisombululo esithembekileyo nesisebenzayo sokuqinisekisa iziseko ezihlala ixesha elide kunye nezomelele.
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 ngokwahlukeneyo kwaye ubunzima bawo abuyi kwahluka ngaphezu kwe-10% ngaphezulu okanye i-5.5% phantsi kobunzima bethiyori, kubalwe kusetyenziswa ubude bayo kunye nobunzima bayo ngeyunithi yobude.
Idayamitha yangaphandle ayisayi kwahluka ngaphezu kwe-±1% ukusuka kwidayamitha yangaphandle echaziweyo
Ubunzima bodonga nakweyiphi na indawo abuyi kuba ngaphezu kwe-12.5% phantsi kobukhulu bodonga oluchaziweyo