Akwai manyan kayan aiki guda uku don maki 12.9 bolts (12.9 ginshiƙi mai tsayi, 12.9 ta hanyar bututu: carbon karfe wedge anga, bakin karfe weji anka, da kuma jan karfe.
(1) Karfe Karfe (kamarcarbon karfe Wedge Anchor Bolts). Mun bambanta low carbon karfe, matsakaici carbon karfe, high carbon karfe da gami karfe dangane da carbon abun ciki a cikin carbon karfe abu.
1. Low carbon karfe tare da C% <0.25% yawanci ake kira A3 karfe a kasar Sin. A waje, ana kiran su 1008, 1015, 1018, 1022, da dai sauransu.
2. Matsakaicin carbon karfe 0.25%
Alloy Karfe: Ƙara abubuwan gami zuwa ƙarfe na carbon na yau da kullun don haɓaka wasu kaddarorin musamman na ƙarfe: kamar 35, 40 chromium azurfa, SCM435
3. 10B38. Fangsheng sukurori galibi suna amfani da SCM435 chromium-platinum gami karfe, wanda manyan abubuwan da suka hada da C, Si, Mn, P, S, Cr, da Mo.
(2) Bakin karfe (kamar bakin karfe zaren sanduna). Matsayin aiki: 45, 50, 60, 70, 80, galibi austenite (18% Cr, 8% Ni), kyakkyawan juriya mai zafi
Kyakkyawan juriya na lalata da kuma kyakkyawan weldability. A1, A2, A4 martensite da 13% Cr suna da juriya mara kyau, ƙarfin ƙarfi da juriya mai kyau. C1,C
2. C4 ferritic bakin karfe. 18% Cr yana da mafi kyawun ƙirƙira da ƙarfi juriya na lalata fiye da martensite. A halin yanzu, kayan da ake shigo da su a kasuwa ana yin su ne a Japan.
Ku ɗanɗani. Dangane da matakin, an raba shi zuwa SUS302, SUS304 da SUS316.
3) Tagulla. Abubuwan da aka fi amfani da su sune tagulla… zinc-copper gami. H62, H65, da H68 jan karfe ana amfani da su azaman daidaitattun sassa a kasuwa.
12.9 Tasirin abubuwa daban-daban a cikin kayan kwalliya akan kaddarorin karfe:
1. Carbon (C): Yana inganta ƙarfin sassa na karfe, musamman kayan aikin maganin zafi, amma yayin da abun ciki na carbon ya karu, filastik da taurin suna raguwa.
Kuma zai shafi aikin walda mai sanyi da aikin walda na sassan karfe.
2. Manganese (Mn): Yana inganta ƙarfin sassa na karfe kuma yana inganta ƙarfin ƙarfi zuwa wani matsayi. Wato, ana ƙara ƙarfin shigar da ƙarfi yayin samar da wuta.
Yana kuma iya inganta ingancin saman, amma da yawa manganese ne detrimental ga ductility da weldability. Kuma zai shafi kula da shafi a lokacin electroplating.
3. Nickel (Ni): Yana inganta ƙarfin sassa na ƙarfe, yana inganta ƙarfi a ƙananan yanayin zafi, inganta juriya ga lalatawar yanayi, kuma yana tabbatar da kwanciyar hankali na zafi.
Sakamakon magani shine don rage tasirin hydrogen ebrittlement.
4. Chromium (Cr): Yana iya inganta ƙarfin hali, inganta haɓaka juriya, inganta juriya na lalata, da kuma taimakawa wajen kula da ƙarfi a yanayin zafi.
5. (Mo): Yana iya taimakawa wajen sarrafa yawan aiki, rage yawan hankali na karfe zuwa fushi, kuma yana taka muhimmiyar rawa wajen inganta ƙarfin ƙarfi a yanayin zafi.
Babban tasiri.
6. Boron (B): Zai iya inganta haɓakar ƙarfi kuma yana taimakawa wajen yin ƙananan ƙarfe na carbon ya samar da amsawar da ake tsammani ga maganin zafi.
7. Alum (V): yana tsaftace hatsin austenite kuma yana inganta taurin
8. Silicon (Si): Yana tabbatar da ƙarfin sassan ƙarfe. Abubuwan da suka dace na iya inganta filastik da taurin sassan karfe.
35CrMo karfe ne mai kyau abu don injin sa 129 haɗa sanda kusoshi da kuma iya saduwa da inji dukiya da bukatun na sa 12.9 aron kusa kayan.
Yana da yuwuwar tsari don ɗaukar maganin zafi na kariyar nitrogen don 12.9 ginshiƙan igiyoyi masu haɗa sanda, bakin ciki da sanyaya ɓangaren sanda, da zaren birgima bayan maganin zafi, kuma ana iya samarwa.
Samar da ingantattun kusoshi masu inganci
An raba ma'auni na bolts da aka yi amfani da su don haɗin ginin ƙarfe zuwa fiye da maki 10 kamar 3.6, 4.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9, da 12.9.
Daga cikin su, kusoshi na 8.8 zuwa sama an yi su da ƙananan ƙarfe na carbon alloy ko matsakaicin ƙarfe na carbon kuma an yi maganin zafi (quenched da tempered), wanda aka fi sani da babban ƙarfi.
Sauran ana kiransu bolts na yau da kullun. Alamar aikin bolt ɗin ta ƙunshi sassa biyu na lambobi, waɗanda ke wakiltar ƙimar ƙarfin ƙarfi na ƙima na abin rufewa da
Matsakaicin haɓaka-ƙarfi. Misali, kusoshi tare da matakin aiki 4.6 yana nufin:
1. Ƙarfin ƙarancin ƙima na kayan haɗin gwiwa ya kai 400MPa;
Matsakaicin ƙarfin yawan amfanin ƙasa na abin rufewa shine 0.6:
2. Ƙarfin ƙididdiga na ƙididdiga na kayan abu ya kai 400 × 0.6 = 240MPa matakin aikin 10.9 mai ƙarfi mai ƙarfi. An yi zafi da kayan
3. Bayan sarrafa, zai iya cimma:
1. The angwaye abu yana da maras muhimmanci tensile ƙarfi na 1000MPa.
2. Matsakaicin ƙarfin-zuwa-ƙarfi na kayan amo shine 0.9:
3. Ƙarfin ƙididdiga na ƙididdiga na kayan abu ya kai 1000 × 0.9 = 900MPa matakin
10.9 sa sukurori bukatar matsakaici carbon gami karfe quenching da tempering zafi magani, kamar 35CRMO 40CR da sauran kayan.
Fihirisar binciken darajar kusoshi ita ce ƙarfin juzu'i na kusoshi. Ba ya't komi menene kayan, menene's mahimmanci shine alamun inji kamar ƙarfin ƙarfi
Lokacin aikawa: Afrilu-16-2024