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              2 ·aLȣ5850mm ƫ+ -10mmጣ䓰LȱĥCȏLȶ150mmѳߴ^LbMȥ^̄tyɸĥCߴ綨,䓰ӲͻƂyy䓰̎njӲHRC10-15ҵͨAMмӜ؟̎팢ӲֱAʽHRC45-55ĥ䓰IJ֮ͬ̎MaA䓟̎ӲֱӲȻٴß̎g̎HRC45-55 Ӳȷ@Ҳĥ䓰ӲȸߣӲȾPI,ĥLxԇCĥLȱڣĥCLd15cmrĥЧ,ֱ40-120mmƫGB/T699-1999˜,rD֮rgAlY׌İĿpgͨ^@ҲڊAʹĥV|ĵطߴҎȫ԰տ͑M{`Դȥ˲ҪM
              3 LʹÉs˳ɱpp˹˵ĄڄҪͣĥC䓰߀ˮa
              4 ,ʹxy߮aƷƷ|ɰИIҕ˗l

              ʯӢɰĥúC䓰ĥC䓰ĥ䓰˾ݣ
              ҹ˾ɽ|Aһ˾˴ếҹ˾䓰a2000aԓaƷgֽ^ݣ䓰,ĥ摪ƽo@͹λпҊѼy^ȬFֲڶȣaڇ܈ƈA䓘˜ʵPҎ,ֱ40-120mmƫGB/T699-1999˜,˾аlĝL呹ˇԄӻaʹÃ|Ͻ䓲Ϻͨ^O_ĸӲgԺõĮaƷҪ󣬮aƷ|ɝM㲻ͬͬ؅^ͬĥ|Ҫ,ĥ䓰޹˾ԡ԰ |鱾 Ԍ ˆDĮaƷYOӋ̎ȫΨһһlMĥ䓰aԓaFȫԄX΢ؼgaȫԄӻaֵĜضȾɲ鿴FaİĥCĥ䓰ָ˾ԽͬaƷ@ÑJcM,ٝȁĴ_˹ӡȶ؅^ĥ䓰޹˾2014aMa䓰yИIȾԴȫ늠tڭhǰ̎ӷ

              ĥC䓰-ˇc
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              MĿɿMϰĥCgYόHÑĥúmĥwһĂyĥC|龀|ʹĥ,ĥCcĥV^ĥV|cVʯʾ|һxĥ,ĥĥЧ܈ƶ䓰1.5-2͑sɱ,˾ѫ@ISO90012000H|wϵJCISO140012004HhwϵJCȘsu, ·aߴҎȫ԰տ͑M{`Դȥ˲ҪM,ĥ䓰Ӳ45-55ĥЧ^ͨA4-6ĥ䓰ֱȡ3/1000ʡ3% ͑Hʡ1%_gԡ12J,Cijȸa,mڲͬӲ(ĪӲ, ,5.5~12)ĵV,ĥ䓰޹˾ԡ԰ |鱾 Ԍ ˆDĮaƷYOӋ̎ȫΨһһlMĥ䓰aԓaFȫԄX΢ؼgaȫԄӻ⣬aֵĜضȾɲ鿴FaİĥCĥ䓰ָ˾ԽͬaƷ@ÑJcM,LʹÉs˳ɱpp˹˵ĄڄҪͣĥC䓰߀ˮa,䓰ӲͻƂyy䓰̎njӲHRC10-15ҵͨAMмӜ؟̎팢ӲֱAʽHRC45-55ĥ䓰IJ֮ͬ̎MaA䓟̎ӲֱӲȻٴß̎g̎HRC45-55 Ӳȷ@Ҳĥ䓰ӲȸӲȾPI,˾аlĝL呹ˇԄӻaʹÃ|Ͻ䓲Ϻͨ^O_ĸӲgԺõĮaƷҪ󣬮aƷ|ɝM㲻ͬͬ؅^ͬĥ|Ҫ, LʹÉs˳ɱpp˹˵ĄڄҪͣĥC䓰߀ˮa,ʯ
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              ʯӢɰĥúC䓰ĥC䓰ĥC䓰a,VʯrǴĥ^СĵVĶp^ΣU,ĥ343ע⣺bĥɰѰȫMȥԔr˾И˹؛ɵFMָÿ_ĥCֱ䓰~ُs20%mӰrã,A䓰VڴұVɽV~VFVXVɫFϡнٵVFVˮSl늏SSʯӢɰɰSȸNĥCO,Ʒ|45#䓰60Mn䓰65Mn䓰B2|,rD֮rgAlY׌İĿpgͨ^@ҲڊAʹĥV|ĵط,ĥ䓰޹˾ԡ԰ |鱾 Ԍ ˆDĮaƷYOӋ̎ȫΨһһlMĥ䓰aԓaFȫԄX΢ؼgaȫԄӻaֵĜضȾɲ鿴FƣaİĥCĥ䓰ָ˾ԽͬaƷ@ÑJcM,ֱ40-120mmƫGB/T699-1999˜,ҹ˾ɽ|Aһ˾˴ếҹ˾䓰a2000aԓaƷgֽ^ݣ䓰ձٝȁĴ_˹ӡȶ؅^ĥ䓰޹˾2014aMa䓰yИIȾԴȫ늠tڭhǰ£̎ӷ,ĥ343ע⣺bĥɰѰȫMȥԔr˾И˹؛ɵFMָÿ_ĥCֱ䓰~ُs20%mӰrã,HĥЧhhڂyağ̎䓰,䓰RCAB䓰70Mn䓰B1|䓰B3|䓰45#ĥC䓰60MnĥC䓰65MnĥC䓰B2|ĥC䓰RCABĥC䓰B3|ĥC䓰B1|ĥC䓰wɸÑҪa
              ˾ĥ|˜ʞ飺
              1ĥӲHRC45-55,|,
              2_gֵ12



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