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

maitiro
Kusimba kwakakwira zvishoma pane simbi gumi neshanu, kashoma kudzima, hapana hasha brittleness inotonhora deformation plasticity yakakwirira general yekukotamisa calender flanging uye nyundo kugadzirisa, senge arch arc welding uye kuramba welding yakanaka welding performance, welding kana ukobvu kuri kudiki, kutaridzika kwakasimba kana chimiro chezvikamu zvakaomarara zvinotsemuka pakucheka machining mamiriro eyakajairwa machining eyakajairwa mamiriro einotonhora anodhirowewa uye kugadzirwa kwakakura kusinga shandiswe. 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 kuoma 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 mekugadzirwa kwakashata, workpiece inodzimwa zvachose nekupisa kupisa (920 ℃ quenched brine), uye yozogadziriswa.Nekuda kwekuoma kwezvinodiwa zve 30-35HRC, maitiro ose anofanira kukwanisa kugadzirisa, hapana chinopfuura chakanaka mukati nekunze kwemotokari yemotokari, kugadzirisa keyway.
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.