Bututun ƙarfe mara nauyiana ratsa su ne daga baki dayan karfen zagaye, kuma bututun karfe da babu walda a saman ana kiran bututun karfe maras sumul. Za a iya raba bututun ƙarfe marasa ƙarfi zuwa bututun ƙarfe mai zafi, bututun ƙarfe mai sanyi, bututun ƙarfe mara nauyi, fitar da bututun ƙarfe mara ƙarfi, da jacks bututu bisa ga hanyoyin samarwa. An kasu bututun ƙarfe marasa sumul zuwa nau'i biyu: zagaye da siffa ta musamman bisa ga siffar giciye. Bututu masu siffa na musamman sun haɗa da murabba'i, elliptical, triangular, hexagonal, guna mai siffa, siffar tauraro, da bututun filaye. Matsakaicin diamita shine 900mm kuma mafi ƙarancin diamita shine 4mm. Dangane da dalilai daban-daban, akwai bututun ƙarfe maras kauri mai kauri da bututun ƙarfe mara nauyi. An fi amfani da bututun ƙarfe maras sumul a matsayin bututun hakowa na ƙasa, petrochemical fasa bututu, bututun tukunyar jirgi, bututu masu ɗaukar nauyi, da ingantaccen bututun ƙarfe na ƙarfe don motoci, tarakta, da jirgin sama.
Ana amfani da bututun ƙarfe marasa ƙarfi.
1. Janar-manufa sumul karfe bututu ana birgima daga talakawa carbon tsarin karfe, low-gawa tsarin karfe ko gami tsarin karfe, tare da most fitarwa, kuma an yafi amfani da matsayin bututu ko tsarin sassa domin isar ruwa.
2. Bisa dalilai daban-daban, ana iya raba shi zuwa kashi uku:
A irin. Bayarwa bisa ga tsarin sinadaran da kaddarorin inji;
Bay bisa ga aikin injiniya;
C. Bisa ga samar da gwajin gwajin ruwa. Ana ba da bututun ƙarfe a cikin nau'ikan A da B. Idan ana amfani da shi don jure matsi na ruwa, ya kamata kuma a yi gwajin hydraulic.
3. Bututun da ba su da kyau don dalilai na musamman sun haɗa da bututu na tukunyar jirgi, sinadarai, wutar lantarki, bututun ƙarfe don ilimin ƙasa, da bututun mai na mai.
Bututun ƙarfe maras sumul suna da sashe mai zurfi kuma ana amfani da su da yawa azaman bututun isar da ruwa, kamar bututun isar da mai, iskar gas, gas, ruwa da wasu ƙaƙƙarfan kayan aiki. Idan aka kwatanta da m karfe kamar zagaye karfe, karfe bututu yana da wuta lankwasawa da torsion ƙarfi da kuma tattalin arziki sashe karfe. Yadu a yi amfani da a yi na tsarin sassa da inji sassa, kamar mai rawar soja bututu, mota watsa shafts, keke Frames, karfe scaffolding ga yi, da dai sauransu Yin zobe sassa da karfe bututu iya inganta kayan amfani, sauƙaƙa masana'antu hanyoyin, da kuma ajiye kayan. da sarrafa su. lokutan aiki.
Akwai manyan hanyoyin samarwa guda biyu don bututun ƙarfe maras sumul (mirgina sanyi da mirgina mai zafi):
①Main samar tsari na zafi-birgima sumul karfe bututu (△ babban dubawa tsari):
Tube blank shiri da dubawa △→ tube dumama → perforation → rolling tube → Tube reheating → Kayyade (rage) diamita → zafi magani → kammala bututu → gamawa → dubawa △(ba lalacewa, jiki da sinadari, benci dubawa) → in ajiya
② Babban tsarin samar da bututun ƙarfe mara nauyi mai sanyi:
Shirye-shirye mara kyau → ɗora da man shafawa → mirgina sanyi (zane) → maganin zafi → daidaitawa → gamawa → dubawa → ajiya
Lokacin aikawa: Nov-02-2021