Menene "Bututun Karfe"?

Aikace-aikacen ƙarfe na bututun

Karfe mai bututunSiffofin samfuran sun haɗa da bututun ƙarfe marasa sulfur da bututun ƙarfe da aka haɗa, waɗanda za a iya raba su zuwa rukuni uku: tsaunuka masu tsayi, wuraren da ke da yawan sulfur da kuma shimfidawa a kan teku. Waɗannan bututun mai yanayin aiki mai tsauri suna da layuka masu tsawo kuma ba su da sauƙin kulawa, kuma suna da ƙa'idodi masu inganci.

Kalubalen da bututun mai ke fuskanta sun haɗa da: yawancin filayen mai da iskar gas suna cikin yankunan da ke kewaye da teku, kankara, hamada, da kuma yankunan teku, kuma yanayin yanayi yana da tsauri sosai; ko kuma don inganta ingancin sufuri, diamita na bututun yana ƙaruwa koyaushe, kuma matsin lamba na isar da kaya yana ƙaruwa koyaushe.

Kayayyakin Karfe na Bututun

Daga cikakken kimantawa game da yanayin ci gaban bututun mai da iskar gas, yanayin shimfida bututun mai, manyan hanyoyin gazawa da dalilan gazawa, ƙarfen bututun mai yakamata ya sami kyawawan halaye na injiniya (bango mai kauri, ƙarfi mai yawa, juriya mai yawa, juriyar lalacewa), kuma yakamata ya kasance yana da babban diamita, yakamata ya kasance yana da babban diamita, ƙarfin walda, juriyar sanyi da ƙarancin zafin jiki, juriyar tsatsa (CO2), juriya ga ruwan teku da HIC, aikin SSCC, da sauransu.

① Babban ƙarfi

Ba wai kawai ƙarfen bututun yana buƙatar ƙarfin juriya mai yawa da ƙarfin samarwa ba, har ma yana buƙatar rabon yawan amfanin ƙasa ya kasance cikin kewayon 0.85 ~ 0.93.

② Taurin tasiri mai ƙarfi

Taurin tasiri mai yawa zai iya cika buƙatun hana tsagewa.

③Ƙarancin zafin jiki mai ƙanƙantawa da ductile

Yankunan da ke da tsauri da yanayin yanayi suna buƙatar ƙarfen bututun ya sami isasshen zafin canjin ductile-brittle. Yankin yankewa na DWTT (Gwajin Test na Nauyi) ya zama babban ma'aunin sarrafawa don hana lalacewar bututun. Bayani na gabaɗaya yana buƙatar yankin yankewar karyewar samfurin ya zama ≥85% a mafi ƙarancin zafin aiki.

④Kyakkyawan juriya ga fashewar hydrogen (HIC) da fashewar sulfide stress corrosion crashing (SSCC)

⑤ Kyakkyawan aikin walda

Kyakkyawan walda na ƙarfe yana da matuƙar muhimmanci don tabbatar da inganci da ingancin walda na bututun.