Giredhi:20 simbi
Standard:GB/T 699-1999

maitiro
Kusimba kwakakwira zvishoma pane simbi gumi neshanu, kashoma kudzima, hapana hasha brittleness inotonhora deformation plasticity yakakwira general yekubhenda calender flanging uye kugadzira nyundo, senge arch arc welding uye resistance welding yakanaka welding performance, welding kana ukobvu kudiki, kutaridzika kwakasimba kana chimiro chezvikamu zvakaoma zvinotapukira pakucheka machining mamiriro ekutonhora anodhonzwa kana normalizing annealing mamiriro akanaka anowanzo shandiswa mukugadzira simba haana kukura uye high toughness
Simbi ndeyemhando yepamusoro yakaderera kabhoni kabhoni simbi, inotonhora extrusion carburized kuomesa simbi, simbi ine simba rakaderera, kusimba kwakanaka, plasticity uye weldability, tensile simba re355-500mpa, elongation mwero we24%
Normalizing inogona kusimudzira spheroidization yesimbi, kunatsa iyo hombe block proeutectoid ferrite, uye kunatsiridza kucheka mashandiro ema blanks asingasviki 160HBS.
Iyo tekinoroji nzira yesimbizvidimbu zvinofa ndezvi: iyo yekukanda forging die blank annealing machine rough machining inotonhora extrusion molding recrystallization annealing machinery fine machining carburizing quenching tempering grinding polishing assembly

makemikari anoumbwa
C: 0.17% ~ 0.24%
Si: 0.17% ~ 0.37%
Mn: 0.35% ~ 0.65%
S: 0.035%
P: 0.035%
Cr: 0.25%
Nhamba: 0.25%
Cu: 0.25
mechanical property
Tensile simba B (MPa) : ≥410(42)
Goho simba S (MPa) : ≥245(25)
Elongation 5 (%) : ≥25
Kuderedzwa kwenzvimbo bits (%) : 55 kana kupfuura
Kuoma: kwete kupisa kurapwa,≤156HB
Saizi yemuenzaniso: Sample size: 25mm

mamwe mashoko

Tsanangudzo yekurapa kwekupisa: normalizing, 910 ℃, kutonhora kwemhepo.

Metallographic chimiro: ferrite + pearlite.
Kurapa kwekupisayesimbi 20 uye kudzima kuomarara kwesimbi no. 20:
Kupisa kwekupisa kwesimbi makumi maviri: Kwesimbi makumi maviri, zvinokwanisika kuwana iyo yakajairwa quenching kuomarara kwe30-35HRC.Nekuti tembiricha yekudziya yakakwira, deformation yekudzima yakakura.
1. Mushure mekugadzira rough machining, workpiece inodzimwa yose nekupisa kupisa (920 ℃ quenched brine), uye yobva yagadziriswa.Nekuda kwekuoma kwezvinodiwa zve30-35HRC, maitiro ose anofanira kukwanisa kugadzirisa, hapana chinopfuura chakanaka mukati. uye kunze kwedenderedzwa remotokari, gadzirisa kiyi.
2. Same rough machining, mukati gomba pamusoro quenching kana chete tafura quenching keyway (zvichienderana kukura workpiece), uye pakupedzisira kupedza.
3. Carburizing uye kudzima, kukuya gomba remukati uye keyway.
Iyo nzira inoyerera ndeyechipiri, yechitatu uye yakawanda.
● Delivery state: kuendeswa mumamiriro ekusava nekupisa kupisa kana kupisa kupisa (annealing, normalizing kana high temperature tempering).Kuendesa mumamiriro ekupisa kupisa kucharatidzwa muchibvumirano. Kana iyo isina kuratidzwa, kutumirwa kuchaitwa pasinakupisa kurapwa.