Izinzuzo zokubanda ezibandayo zakha amapayipi ahleliwe

Izinzuzo zokubanda okubandayo kwakha amapayipi ahleliwe afakiwe isithombe esifakiwe

Incazelo emfushane:

Lokhu okucacisiwe kufaka amamaki amahlanu e-Electric Fusion (arc) -Ishizi lensimbi yensimbi enopheyiselwe ngogesi. Ipayipi lenzelwe ukudlulisela uketshezi, igesi noma umphunga.

Ngemigqa engu-13 yokukhiqiza yepayipi lensimbi e-Spiral, iCangzhou Spiral Steel yamapayipi e-CO, Ltd iyakwazi ukukhiqiza amapayipi ensimbi angenamthungo nge-21900mm kuya ku-25.4mm kuze kufike ku-25.4mm.

Thumela i-imeyili kithi

Imininingwane Yomkhiqizo

Amathegi Omkhiqizo

Emikhakheni yokwakha kanye nezokwakha, ukukhetha kwezinto zokwakha izinsimbi nezindlela kudlala indima ebalulekile ekuphothulweni ngempumelelo kwanoma iyiphi iphrojekthi. Into eyodwa enjalo eye yathandwa eminyakeni yamuva nje iyipayipi elibandayo le-welded. Lo mkhiqizo omusha unikeza izinzuzo eziningana ngaphezu kwamapayipi endabuko angenamthungo noma ama-welded, ikakhulukazi amapayipi we-spiral seam.

Ukubanda kwakha ukwakheka kwe-weldedIpayipi likhiqizwa ngenqubo eyakha amakhaza, efaka ukugoba nokwakha amakhoyili ngensimbi ibe ngumemo owufunayo. Umphumela uba ngumbhobho onamandla futhi oqinile futhi oqinile, kepha ongasindi futhi kulula ukusisebenzisa. Ngokwengeziwe, inqubo eyakheka amakhaza iqinisekisa ukuthi ipayipi ligcina ukuthembeka kwalo ngokwesakhiwo nokunemba, okwenza lilungele izinhlelo zokusebenza ze-welding.

Impahla yemishini

	Grade a	Ibanga B	Ibanga C	Ibanga d	Ebangeni e
Ukukhiqiza amandla, amaminithi, i-MPA (KSI)	330 (48)	415 (60)	415 (60)	415 (60)	445 (66)
Amandla asheshayo, amaminithi, i-MPA (KSI)	205 (30)	240 (35)	290 (42)	315 (46)	I-360 (52)

Ukwakheka kwamakhemikhali

Isithako semvelo	Ukwakheka, max,%
Isithako semvelo	Grade a	Ibanga B	Ibanga C	Ibanga d	Ebangeni e
Ikhabhoni	0.25	0.26	0.28	0.30	0.30
Mangangane	1.00	1.00	1.20	1.30	1.40
Ifosphorus	0.035	0.035	0.035	0.035	0.035
Isibabule	0.035	0.035	0.035	0.035	0.035

Ukuhlolwa kweHydrostatic

Ubude bepayipi ngalinye buzovivinywa ngumenzi ngengcindezi ye-hydrostatic ezokhiqiza odongeni lwamapayipi ingcindezi engaphansi kwamandla ka-60% acacisiwe amancane okushisa avumayo ekushiseni kwegumbi. Ingcindezi izonqunywa yi-equation elandelayo:
P = 2st / d

Ukuhlukahluka okuvumelekile ezinsimbi nasezilinganiso

Ubude bepayipi ngalinye buzosindwa ngokwehlukana futhi isisindo salo ngeke bahlukane ngaphezu kwe-10% ngaphezulu noma ngo-5.5% ngaphansi kwesisindo salo sethiyori, kubalwa kusetshenziswa ubude bayo nobude bayo ngeyunithi ngayinye ubude kanye nesisindo sayo ngeyunithi yayo ubude kanye nesisindo sayo ngeyunithi yayo ngayinye ubude.
Ububanzi obungaphandle ngeke buhluka kakhulu kune- ± 1% kusuka kububanzi obucacisiwe bangaphandle.
Ubukhulu bodonga nganoma yisiphi isikhathi ngeke bungabi ngaphezu kwe-12,5% ngaphansi kobukhulu obudongeni obucacisiwe.

Ubude

Ubude obungahleliwe obungahleliwe: 16 kuya ku-25ft (4.88 kuya ku-7.62m)
Ubude obungahleliwe obuphindwe kabili: ngaphezulu kwe-25ft kuya ku-35ft (7.62 kuye ku-10.67m)
Ubude be-Uniform: Ukuhluka okuvumelekile ± 1in

Iphelela

Izinselo zamapayipe zizofakwa iziphetho ezicacile, nemibungu emaphethelweni izosuswa
Lapho ipayipi liphela lichazwe ukuba yi-Bevel Ends, i-angle izoba ngama-30 kuye kwangama-35 degree

Enye yezinzuzo eziphambili zesakhiwo esibandayo se-Weldedipayipi lokufudumalaamandla awo okubekezelela amazinga okushisa aphezulu nezingcindezi. Ngokungafani namapayipi endabuko, athambekele ekugcekeni nasezinye izinhlobo zokuwohloka, amapayipi akhiwa amakhaza azokwazi ukumelana nobunzima bokufuduma kanye nezinye izinqubo zezimboni. Lokhu kubenza balungele ukusetshenziswa ezinhlobonhlobo zezicelo kusuka ekwakheni ukwakhiwa kumaphrojekthi wengqalasizinda.

Enye inzuzo yepayipi eyakhelwe ebandayo ye-Welded isebenza kahle. Inqubo yokwakha ebandayo ingakhiqiza amapayipi ngosayizi nobukhulu obuhlukahlukene, behlisa isidingo sokuphonsa okubizayo nezinqubo ezibizayo. Lokhu kwenza umkhiqizo ubethe xabani futhi uthembeke njengepayipi elingenamthungo noma eline-welded. Ngaphezu kwalokho, uhlobo olungasindi lwepayipi elibandayo elibandayo lwenza izinto zokuhamba nokufakwa lula futhi kungabizi kakhulu, kukhuphula ukuqhutshelwa kwalo.

Kuvunguza amashubhu we-seam ngokukhethekile kwinqubo ebandayo eyakha. Amandla endalo nokuguquguquka kwamashubhu akhiwa amakhaza awenza abe nekade ekwakheni amalunga akhula aqinile futhi avuzayo. Lokhu kubenza babe ukukhetha okuhle kwezicelo ezifana nezinhlelo zokudonsa komhlaba, imigqa yamanzi kanye nezinhlelo zokunisela ezolimo. Ngaphezu kwalokho, indawo ebushelelezi yamapayipi akhiwa ama-ebandayo inciphisa ingozi yokuxabana nokugqoka, ukunwebisa impilo yamapayipi futhi kunciphisa isidingo sokulungiswa nokulungiswa.

Sekukonke, amaphayiphu wesakhiwo esibandayo esasungulwa anikezela ngezinzuzo eziningi ezenza kube ukukhetha okuhle kwezicelo ze-welding, ikakhulukazi ipayipi le-Spiral Spiral Seam. Amandla abo, ukuqina kanye nokusebenza kwezindleko kubenza babe ukukhetha okukhangayo kwezimboni ezahlukahlukene, kusuka ekwakheni ukukhiqiza. Njengokufunwa kwezinto ezisezingeni eliphakeme, izinto ezithembekile ziyaqhubeka ukukhula, ipayipi elibandayo le-welded elibandayo lizoba ukukhetha okuthandwa kakhulu kwezicelo ze-welding.