ASTM A1045 Tsarin Karfe Bututugabaɗaya ya dace da kayan bututun ƙarfe mara nauyi.An raba bututun ƙarfe mara ƙarfi zuwa GB8162 da GB8163, waɗanda ƙa'idodi biyu ne da aka saba amfani da su a China.Koyaya, ASTM A1045Tsarin Karfe Bututuyana da GB8162 kawai, wanda shine kayan da aka saba amfani dashi don injina.
ASTM A1045 karfe bututu ne da aka saba amfani da matsakaici carbon quenched da tempered karfe bututu tare da mai kyau m inji Properties, low taurin da sauki fashe yayin da ruwa quenching.Ya kamata a kashe ƙananan sassa da fushi, kuma manyan sassa ya kamata a daidaita su, galibi ana amfani da su don kera manyan sassan motsi masu ƙarfi, kamar injin injin turbine da piston compressor.Shaft, kaya, tara, tsutsa, da dai sauransu.
ASTM 1045 carbon karfe bututuya ƙunshi kusan 0.45% carbon, ƙaramin adadin manganese, silicon, da dai sauransu, da ƙananan sulfur da phosphorus abun ciki na bututun tsarin carbon mai inganci.
Zafin magani zafin jiki: normalizing 850, quenching 840, tempering 600. ASTM1045 karfe ne high quality-carbon tsarin karfe da low tauri da kuma sauki yanke.Sau da yawa ana amfani da ƙirar azaman samfuri, fil, ginshiƙan jagora, da sauransu, amma dole ne a bi da shi zafi.1. ASTM1045 karfe ya cancanta idan taurinsa ya fi HRC55 (har zuwa HRC62) bayan quenching da kuma kafin tempering.Mafi girman taurin aikace-aikace shine HRC55 (madaidaicin quenching HRC58).2. Ba za a yi amfani da tsarin kula da zafi na carburizing da quenching don ASTM1045 karfe.Yankunan da aka kashe da masu zafin rai suna da ingantattun kaddarorin inji kuma ana amfani da su sosai a sassa daban-daban masu mahimmanci na tsarin, musamman waɗanda ke haɗa sanduna, kusoshi, gears da shafts waɗanda ke aiki ƙarƙashin madaidaicin lodi.Koyaya, taurin saman ba shi da ƙarfi kuma baya jurewa.Za'a iya inganta taurin sassan sassa ta hanyar quenching da zafin rai+ quenching saman.Ana amfani da jiyya na carburizing gabaɗaya don sassa masu nauyi mai nauyi tare da juriya na abrasion da juriya mai tasiri, kuma juriyarsa ta abrasion ya fi na quenching da tempering + saman quenching.Abubuwan da ke cikin carbon ɗin sa shine 0.8-1.2%, kuma ainihin sa shine 0.1-0.25% (0.35% a lokuta na musamman).Bayan jiyya na zafi, farfajiyar na iya samun tauri mai girma (HRC58-62), kuma ainihin yana da ƙarancin ƙarfi da juriya mai tasiri.Idan aka yi amfani da ASTM1045 karfe don carburizing, tauri da gaggautsa martensite zai bayyana a cikin ainihin bayan quenching, rasa fa'idar carburizing jiyya.A halin yanzu, abubuwan da ke cikin carbon na kayan da ke ɗaukar tsarin carburizing ba su da girma, kuma ƙarfin ƙarfin zai iya kaiwa sosai da kashi 0.30%, wanda ba kasafai bane a aikace.0.35% ba su taɓa ganin kowane misali ba, kuma kawai an gabatar da su a cikin littattafan karatu.Ana iya amfani da tsari na quenching da tempering + high-frequency surface quenching, da lalacewa juriya ya dan kadan muni fiye da na carburizing.The shawarar zafi magani tsarin for 45 karfe kayyade a GB / T699-1999 misali ne 850 ℃ normalizing, 840 ℃ quenching da 600 ℃ tempering.Abubuwan da aka samu sune ƙarfin yawan amfanin ƙasa shine ≥ 355MPa.Ƙarfin ƙarfi na ƙarfe 45 da aka ƙayyade a cikin GB / T699-1999 misali shine 600MPa, ƙarfin yawan amfanin ƙasa shine 355MPa, elongation shine 16%, raguwar yanki shine 40%, kuma tasirin tasirin shine 39J.
Lokacin aikawa: Satumba-24-2022