Farantin ƙarfe na S460N/Z35 wanda ke daidaita farantin, farantin ƙarfi mai ƙarfi na Turai, S460N, S460NL, S460N-Z35 bayanin ƙarfe: S460N, S460NN, S460N-Z35 ƙarfe ne mai zafi da za a iya naɗawa a ƙarƙashin yanayin birgima na yau da kullun/na yau da kullun, kauri farantin ƙarfe na S460 bai wuce 200mm ba.
S275 don aiwatar da ƙarfe mara ƙarfe tsarin aiki: EN10025-3, lamba: 1.8901 Sunan ƙarfe ya ƙunshi sassa masu zuwa: Harafin alama S: kauri mai alaƙa da ƙarfe na tsarin gini na ƙasa da 16mm ƙimar ƙarfin samarwa: ƙimar mafi ƙarancin yawan samarwa Yanayin isarwa: N ya ƙayyade cewa tasirin a zafin jiki ba ƙasa da digiri -50 ba yana wakiltar babban harafi L.
S460N, S460NL, S460N-Z35 Girma, siffa, nauyi da kuma karkacewar da aka yarda da ita.
Girman, siffar da kuma karkacewar da aka yarda da ita na farantin ƙarfe dole ne su bi ƙa'idodin EN10025-1 a cikin 2004.
Matsayin isarwa na S460N, S460NL, S460N-Z35 Faranti na ƙarfe galibi ana isar da su ne a yanayin da suka dace ko kuma ta hanyar birgima na yau da kullun a ƙarƙashin yanayi iri ɗaya.
S460N, S460NL, S460N-Z35 Sinadarin Sinadarin ƙarfe na S460N, S460NL, S460N-Z35 Sinadarin sinadarai (nazarin narkewa) ya kamata ya bi jadawalin da ke ƙasa (%).
Bukatun sinadaran S460N, S460NL, S460N-Z35: Nb+Ti+V≤0.26; Cr+Mo≤0.38 S460N Nazarin Narkewa Carbon Equivalent (CEV).
S460N, S460NL, S460N-Z35 Kayayyakin injina Kayayyakin injina da kayan aikin sarrafawa na S460N, S460NL, S460N-Z35 za su cika buƙatun teburin mai zuwa: Kayayyakin injina na S460N (ya dace da masu wucewa).
Ƙarfin tasirin S460N, S460NL, S460N-Z35 a yanayin da aka saba.
Bayan an rufe shi da kuma daidaita shi, ƙarfen carbon zai iya samun daidaito ko kuma kusan daidaito, kuma bayan an kashe shi, zai iya samun tsari mara daidaito. Saboda haka, lokacin nazarin tsarin bayan an yi amfani da zafi, ba wai kawai zane-zanen matakin ƙarfe na carbon ba har ma da lanƙwasa mai canza yanayin isothermal (C curve) na ƙarfe ya kamata a koma zuwa gare shi.
Zane-zanen yanayin carbon na ƙarfe zai iya nuna tsarin lu'ulu'u na ƙarfe a lokacin sanyaya a hankali, tsarin a zafin ɗaki da kuma adadin matakai, kuma lanƙwasa C na iya nuna tsarin ƙarfe tare da wani abu mai kama da juna a ƙarƙashin yanayi daban-daban na sanyaya. Lanƙwasa C ya dace da yanayin sanyaya isothermal; Lanƙwasa CCT (lanƙwasa mai ci gaba da sanyaya austenitic) ya dace da yanayin sanyaya a ci gaba. Har zuwa wani mataki, ana iya amfani da lanƙwasa C don kimanta canjin tsarin microstructure yayin sanyaya a ci gaba.
Idan aka sanyaya austenite a hankali (daidai da sanyaya tanderu, kamar yadda aka nuna a Hoto na 2 V1), kayayyakin canzawa suna kusa da tsarin daidaito, wato pearlite da ferrite. Tare da karuwar saurin sanyaya, wato, lokacin da V3>V2>V1, rashin sanyaya austenite yana ƙaruwa a hankali, kuma adadin ferrite da aka sanyaya yana raguwa, yayin da adadin pearlite ke ƙaruwa a hankali, kuma tsarin ya zama ƙarami. A wannan lokacin, ƙaramin adadin ferrite da aka sanyaya galibi yana yaɗuwa akan iyakar hatsi.
Saboda haka, tsarin v1 shine ferrite+pearlite; Tsarin v2 shine ferrite+sorbite; Tsarin micro na v3 shine ferrite+troostite.
Idan yawan sanyaya ya kai v4, ƙaramin adadin ferrite da troostite na hanyar sadarwa (wani lokacin ana iya ganin ƙaramin adadin bainite) ana haƙa su, kuma austenite galibi ana canza shi zuwa martensite da troostite; Idan ƙimar sanyaya v5 ta wuce ƙimar sanyaya mai mahimmanci, ƙarfen gaba ɗaya yana canzawa zuwa martensite.
Sauyin ƙarfen hypereutectoid yayi kama da na ƙarfen hypoeutectoid, tare da bambancin cewa ferrite yana fara fashewa a cikin na ƙarshe da kuma siminti yana fara fashewa a cikin na farko.
Lokacin Saƙo: Disamba-14-2022
