42CRMO Bututu Karfe mara kyau
Manufar 42crmo sumul karfe bututu: The musamman karfe sa ga gadoji ne "42crmo", da musamman karfe sa ga mota girders ne "42CRmo", da kuma musamman karfe sa ga matsa lamba tasoshin ne "42Crmo".Irin wannan ƙarfe yana dogara ne akan daidaita abun ciki na carbon (C) don inganta kayan aikin ƙarfe.Saboda haka, bisa ga matakin abun ciki na carbon, irin wannan nau'in karfe za a iya raba shi zuwa: Low carbon karfe-karfe na carbon gaba ɗaya bai wuce 0.25% ba, kamar 10, 20 karfe, da dai sauransu;matsakaiciyar carbon karfe-carbon abun ciki shine gabaɗaya tsakanin 0.25 da 0.60%, kamar 35, 45 karfe, da sauransu;Babban abun ciki na carbon karfe-carbon shine gabaɗaya fiye da 0.60%.Ba a amfani da irin wannan ƙarfe gabaɗaya wajen kera bututun ƙarfe.
Babu bayyanannen tashin hankali, ƙananan nakasawa a lokacin quenching, iyakar gajiya mai yawa da juriya mai yawa bayan quenching da jiyya na zafin jiki, ingantaccen tasiri mai ƙarancin zafin jiki, ƙarfi mai ƙarfi da ƙarfi mai dorewa a babban zafin jiki.Karfe yakan yi amfani da quenching surface bayan quenching da tempering a matsayin tsarin kula da zafi.
42crmo abu ne a cikin karfe.A baya, sunan karfe.Sunan shine: Q345B, irin wannan kayan sune Q345a, Q345c, Q345e, alamar ingancin ingancin ABCDE yana nufin cewa ba'a buƙatar zafin gwajin tasiri ya zama +20 digiri 0 digiri -20 digiri 40 digiri ABCD wakiltar ingancin matakin Q235 ingancin matakin maki. Akwai matakai huɗu na A, B, C, D, daga A zuwa D waɗanda ingancin yana daga ƙasa zuwa babba.
Abubuwan buƙatun don matakan inganci daban-daban sune kamar haka:
A-—Ba da sinadarai na S, P, C, Mn, Si da fu, fy, δ5 (δ10), bisa ga buƙatun mai siye, ana iya ba da gwajin lanƙwasa sanyi 1800, amma babu wani tasiri tsarin makamashi, carbon. abun ciki da abun ciki na manganese ba a la'akari da yanayin bayarwa.
B——Samar da S, P, C, Mn, Si sinadaran abun da ke ciki da fu, fy, δ5 (δ10), gwajin lankwasa sanyi 180'.Hakanan yana ba da ƙarfin tasiri a +200C, Ak≥27J
C-Bugu da ƙari ga buƙatun iri ɗaya kamar Class B, yana kuma ba da ƙarfin tasiri Ak≥27J a 00C.
D---- Baya ga buƙatun matakin B, yana kuma samar da makamashi mai tasiri Ak≥27J a -200C.E---- Bugu da ƙari ga buƙatun matakin B, yana kuma samar da makamashi mai tasiri Ak≥27J a -400C.
Inda 42crmo sumul karfe bututu da talakawa karfe bututu ne m bi da bi: The karfe bututu an raba zuwa sanyi kõma da zafi birgima.
1, Ground karfe bututu ga ruwa: GB8163-2018
2, Bututun ƙarfe mara nauyi don tukunyar jirgi: GB3087- 2018
3. High matsa lamba sumul bututu ga tukunyar jirgi: GB5310-2018 (ST45.8-Ⅲ nau'in)
4. High-matsi sumul karfe bututu don taki kayan aiki: GB6479-2018
5. Bututun ƙarfe mara ƙarfi don hakowa na ƙasa: YB235-70
6, M karfe bututu ga mai hakowa: YB528-65
7, Bututun ƙarfe mara ƙarfi don fashewar mai: GB9948-2018
8. Bututun da ba shi da kyau na musamman don abin wuyan mai: YB691-70
9, M karfe bututu ga mota rabin shaft: GB3088-2018
10. Bututun ƙarfe mara nauyi don jiragen ruwa: GB5312-2018
11. Sanyi-jawo sanyi-birgima daidaici m karfe bututu: GB3639-2018
Daban-daban gami bututu 16Mn, 27SiMn, 15CrMo, 35CrMo, 12CrMovG, 20G, 40Cr, 12Cr1MoV, 15CrMoG karfe bututu an kasu kashi m karfe bututu da welded karfe bututu bisa ga daban-daban samar matakai.
Bututun ƙarfe maras sumul bututun ƙarfe ne marasa ƙarfi waɗanda aka yi daga ingots na ƙarfe, billet ko sandunan ƙarfe da aka ratsa.
