I-A252 yeBanga lesi-2 yokuFakelwa kweMibhobho yeNtsimbi yeZiseko kuShishino lwaseNxwemeni

Kwihlabathi elihlala liguquguquka lophuhliso lweziseko ezingundoqo, imfuneko yezinto ezithembekileyo nezizinzileyo zibalulekile. Siyazingca ngokunikezela ngeemfumba zethu zeprimiyamu, eziyilelwe ukuhlangabezana nemigangatho engqongqo efunekayo kwimibhobho yerhasi ephantsi komhlaba. Iimfumba zethu zenziwa ngokuchaneka, ukuqinisekisa ukuba imfumba nganye iyalinganiswa ukuze kuqinisekiswe ukuthotyelwa kwemigaqo yoshishino.

Iimfumba zethu zemibhobho zenziwe kwi-A252 GRADE 2 yensimbi, into eyaziwa ngokuba namandla kunye nokuqina. Eli nqanaba lentsimbi lifanelekile ngokukodwa kwizicelo ezibandakanya ukufakwa phantsi komhlaba apho ukunyaniseka kwesakhiwo sezinto eziphathekayo kubaluleke kakhulu. Umbhobho wentsimbi we-A252 IBANGA 2 yenzelwe ukumelana neemeko ezinzima ezihlala zidibana neendawo eziphantsi komhlaba, nto leyo eyenza ibe lolona khetho lufanelekileyo kwizicelo zemibhobho yerhasi.

Njengomgcini-mpahla othembekileyo we-SSAW (Spiral Submerged Arc Welded) umbhobho, siqinisekisa ukuba iimveliso zethu zihlangabezana nemigangatho ephezulu yomgangatho. Imfumba nganye yombhobho yenziwa kusetyenziswa iindlela zokuwelda eziphucukileyo ezandisa amandla ezinto kunye nokuqina. Umbhobho wethu we-SSAW uyaziwa ngeempawu zayo ezigqwesileyo zemishini kwaye ifanelekile kwizicelo ezahlukeneyo, kubandakanywa nemibhobho yegesi yendalo engaphantsi komhlaba. Inkqubo ye-welding ye-spiral ayinikezeli kuphela isakhiwo esiqinileyo, kodwa ivumela ubude obude ukuba iveliswe, ukunciphisa imfuno yamalungu kunye nokuphucula ukunyaniseka okupheleleyo kofakelo.

Intsimbi ayiyi kuba ngaphezu kwe-0.050% ye-phosphorus.

Ubude bombhobho ngamnye buya kulinganiswa ngokwahlukeneyo kwaye ubunzima bayo abuyi kwahluka ngaphezu kwe-15% ngaphezulu okanye i-5% phantsi kobunzima bayo 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

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

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

Ubude bengqumba yombhobho nganye buya kuphawulwa ngokusemthethweni ngokwenziwa kwestencili, isitampu, okanye ukuqengqeleka ukubonisa: igama okanye uphawu lomenzi, inombolo yobushushu, inkqubo yomenzi, uhlobo lomthungo we-helical, i-diameter yangaphandle, ubukhulu bodonga lwegama, ubude, kunye nobunzima ngobude beyunithi nganye, ukuchazwa kophawu kunye nebakala.

Eyona nto iphambili kwiimfumba zethu kukungaguquguquki kobunzima bazo. Imfumba nganye ilinganiswe ngononophelo kwaye sithobela ukunyamezela okungqongqo ukuqinisekisa ukuba ubunzima abuhlukanga ngaphezu kwe-15% okanye i-5% yobunzima bethiyori. Oku kuchanekileyo kubalulekile kwiinjineli kunye neekontraka ezixhomekeke kwiinkcukacha ezichanekileyo zeeprojekthi zabo. Ngokugcina le migangatho yobunzima, sinceda ukuqinisekisa ukuba inkqubo yokufakela ihamba kakuhle kwaye ukusebenza kwezakhiwo zeemfumba kuhlangabezana nemigangatho elindelekileyo.

Ukuzinikela kwethu kumgangatho kudlulela ngaphaya kwenkqubo yokuvelisa. Siyaqonda ukuba impumelelo yayo nayiphi na iprojekthi ebandakanya imibhobho yegesi ephantsi komhlaba ixhomekeke ekuthembekeni kwezinto ezisetyenzisiweyo. Ke ngoko, siqhuba iitshekhi zolawulo olungqongqo kuwo onke amanqanaba emveliso. Iqela lethu leengcaphephe lizinikezele ekuqinisekiseni ukuba yonke imfumba ihlangabezana neenkcukacha eziyimfuneko kwaye isetyenziswa ngoko nangoko xa ihanjiswa.

Ukongeza kwiimfumba ezikumgangatho ophezulu, sikwabonelela ngenkonzo ebalaseleyo yabathengi kunye nenkxaso. Iqela lethu elinolwazi lihlala likhona ukuphendula nayiphi na imibuzo onokuthi unayo, linike isikhokelo sobugcisa, kwaye likuncede ukhethe iimveliso ezifanelekileyo kwiimfuno zakho ezithile. Siyazingca ngokwakha ubudlelwane bexesha elide kunye nabathengi bethu, siqinisekisa ukuba abafumani kuphela imveliso yeklasi yokuqala, kodwa kunye nenkxaso abayidingayo ukugqiba ngempumelelo iprojekthi yabo.

Isishwankathelo, iimfumba zethu zeprimiyamu zemibhobho ezenziwe kwi-A252 GRADE 2 yentsimbi, efumaneka ngenkonzo yethu yomthengisi wemibhobho ye-SSAW, sisisombululo esigqibeleleyo seprojekthi yakho yombhobho wegesi ephantsi komhlaba. Ngokuzibophelela kwethu kumgangatho, ukuchaneka, kunye nokwaneliseka kwabathengi, unokusithemba ukubonelela ngezinto ozifunayo ukuqinisekisa ukuba uphuhliso lwakho lweziseko ezingundoqo luyimpumelelo kwaye lukhuselekile. Khetha iimfumba zethu zemibhobho yesisombululo esithembekileyo, esomeleleyo, nesisebenzayo kwiimfuno zakho zokwakha phantsi komhlaba.