Ƙananan zafin jikicarbon karfe bututune carbon tsarin karfe, low zafin jiki carbon karfe bututu da aka sarrafa a cikin low zafin jiki yanayin, wanda zai iya jure wani low zafin jiki tasiri, da inji yi ne mafi alhẽri, da kuma farashin ne low, m tushen, don haka yadu amfani.Babban rauninsa shine ƙarancin ƙarfi, girman sashe babban buƙatun Jafananci na kayan aikin bai kamata a yi amfani da shi ba.
Low zazzabi carbon karfe bututu quenching zafin jiki a A3 + (30 ~ 50) ℃, a aikace, yawanci saita zuwa babba iyaka.High quenching zafin jiki zafi bututu iya yin low gudun, surface hadawan abu da iskar shaka rage, kuma zai iya inganta aiki yadda ya dace.The workpiece ne uniform austenite, zai buƙaci isasshen lokacin riƙewa.Idan ainihin ƙarfin wutar lantarki da aka shigar, zai buƙaci ya dace don tsawaita lokacin riƙewa.In ba haka ba, za a iya samun rashin isasshen taurin saboda rashin daidaituwar dumama wanda abin ya haifar.Duk da haka, lokacin riƙewa ya yi tsayi da yawa, zai kuma bayyana ƙananan hatsi, oxidation da decarbonization mai tsanani da ke shafar ingancin quenching.Mun yi imani da cewa idan shigar makera ne mafi girma fiye da tsari takardun, dumama rike lokaci da za a kara 1/5.Low zafin jiki carbon karfe bututu saboda low hardenability, ya kamata a yi amfani da babban sanyaya kudi na 10% gishiri bayani.Workpiece a cikin ruwa, ya kamata hardenability, amma ba sanyi ba, idan 45 # daidai karfe chilled a brine, yana yiwuwa fatattaka na workpiece, wannan shi ne saboda lokacin da workpiece aka sanyaya zuwa game da 180 ℃, da austenite da sauri tuba zuwa doki s jiki. nama lalacewa ta hanyar wuce kima danniya saboda.Saboda haka, lokacin da quenching da tempering karfe da sauri sanyaya zuwa wannan zafin jiki kewayon, ya kamata a dauki tsarin zuwa jinkirin sanyaya.Kamar yadda yanayin zafin ruwa ke da wuyar fahimta, gwaninta a cikin aiki, lokacin da ruwan ya daina karkatar da kayan tarihi, zaku iya sanyaya ruwa (misali mai sanyaya mai zai iya zama mafi kyau).Bugu da kari, da workpiece a cikin ruwa, dace mataki ya kamata har yanzu zama daidai da lissafi na workpiece, kamar yadda na yau da kullum motsa jiki.Matsakaicin sanyaya mai tsayayye da aiki mai tsayuwa, yana haifar da rashin daidaituwa taurin, damuwa rashin daidaituwa barin babban nakasu na workpiece, har ma da fatattaka.
Low zafin jiki carbon karfe bututu memba quenched taurin bayan quenching kamata isa HRC56 ~ 59, da yiwuwar babban giciye-section kasa, amma ba kasa da HRC48, in ba haka ba, yana nuna workpiece ba gaba daya taurare, kungiyar na iya zama ferrite ko sorbite. nama, irin waɗannan ƙungiyoyi ta hanyar fushi, har yanzu ana riƙe su a cikin matrix, wanda ba a kashe dalilai ba.Low carbon karfe bututu tempering bayan quenching, da dumama zafin jiki ne yawanci 560 ~ 600 ℃, taurin ne HRC22 ~ 34. Domin manufar shi ne don samun quenched inji Properties, don haka in mun gwada da fadi da kewayon taurin.Amma zana buƙatun taurin, wajibi ne don daidaita yanayin zafin jiki bisa ga zane don tabbatar da taurin.Kamar yadda wasu sandunan ƙarfe na sanyi ke buƙatar ƙarfin ƙarfi, taurin yana da girma;yayin da wasu gear keyway shaft sassa, domin ko da bayan milling quenched, saka aiki, taurin bukatun ga ƙananan.Game da Tempering lokaci, dangane da taurin da girman da workpiece, mun yi imani, ya dogara da taurin bayan tempering tempering zafin jiki da tempering kadan lokaci, amma dole ne a mayar da ta hanyar general ko da yaushe aiki Tempering Time sa'a daya ko fiye.