16Mn high quality-seamless karfe bututu manufacturer tabo
(1) High quality carbon tsarin karfe maki hada da 20g, 20mng da 25mng.
(2) Alloy tsarin karfe maki: 15mog, 20mog, 12CRmog, 15CrMoG, 12CR2MOG, 12crmovg, 12Cr3MoVSiTiB, da dai sauransu
(3)Baya ga tabbatar da abubuwan sinadaran da kaddarorin inji, 1Cr18Ni9 da 1cr18ni11nb tukunyar jirgi da aka saba amfani da su a cikin karfe mai jure zafi za a yi gwajin hydrostatic, flaring da flattening gwajin daya bayan daya. Za a isar da bututun ƙarfe a yanayin zafi mai zafi.
(1)Gb3087-2008 bututun ƙarfe mara nauyi don ƙananan tukunyar jirgi da matsakaici. Gwajin tensile zai bi GB/t228-87, gwajin hydrostatic tare da GB/t241-90, gwajin flattening tare da GB/t246-97, gwajin flaring tare da GB/t242-97 da gwajin lankwasa sanyi tare da gb244-97.
(2)GB5310-2008 bututun ƙarfe mara nauyi don manyan tukunyar jirgi. Gwajin tensile, gwajin hydraulic da gwajin flattening iri ɗaya ne da waɗanda aka ƙayyade a gb3087-82; Gwajin tasiri bisa ga gb229-94, gwajin flaring bisa ga GB/t242-97 da gwajin girman hatsi bisa ga Yb/t5148-93; Microstructure dubawa zai kasance daidai da gb13298-91, decarburized Layer dubawa zai kasance daidai da gb224-87, da ultrasonic dubawa zai kasance daidai da GB / t5777-96.
(3) Binciken aikin jiki da fihirisa na bututun tukunyar jirgi da aka shigo da su za a gudanar da su daidai da ma'auni masu dacewa da aka ƙayyade a cikin kwangilar.
Matsakaicin ƙarfin (FB) wanda samfurin ya ɗauka a lokacin fashewar juzu'i shine damuwa da aka samu daga asalin yanki na giciye (don haka) na samfurin ((σ) ， Da ake kira ƙarfin ƙarfi (σ b) , a cikin N / mm2 (MPA) . Yana wakiltar iyakar ƙarfin kayan ƙarfe don tsayayya da gazawar a ƙarƙashin tashin hankali. Tsarin lissafin shine:
Inda: FB -- iyakar ƙarfin da samfurin ke ɗauka lokacin da ya karye, n (Newton); Don haka -- asalin yanki na yanki na samfurin, mm2.
Don kayan ƙarfe tare da abin al'ajabi, damuwa lokacin da samfurin zai iya ci gaba da tsawo ba tare da karuwa ba (ci gaba da ci gaba) damuwa a lokacin tsarin jujjuyawar ana kiransa alamar yawan amfanin ƙasa. Idan damuwa ya ragu, za a bambanta maki na sama da na ƙasa. Matsakaicin yawan amfanin ƙasa shine n/mm2 (MPA).
Ma'anar yawan amfanin ƙasa (σ Su):matsakaicin matsananciyar damuwa kafin yawan amfanin ƙasa na samfurin ya ragu a karon farko; Ƙananan ma'auni (σ SL): ƙananan damuwa a matakin yawan amfanin ƙasa lokacin da ba a yi la'akari da tasirin farko nan take ba.
Ƙididdigar ƙididdiga na ma'aunin ƙima shine:
Inda: FS - yawan damuwa (m) na samfurin a lokacin tashin hankali, n (Newton) don haka - ainihin yanki na yanki na samfurin, mm2.
