Ibakala:20 intsimbi
Umgangatho:GB/T 699-1999

iimpawu
Ubunzulu bungaphezulu kancinane kunentsimbi ye-15, kunqabile ukuba kucinywe, akukho msindo brittleness kubanda deformation plasticity eliphezulu jikelele ukugoba calender flanging kunye nehamile processing, ezifana arch arc welding kunye nokumelana welding ukusebenza kakuhle welding, iwelding xa ubukhulu buncinci, inkangeleko engqongqo okanye Imilo yamalungu antsonkothileyo athambekele ekuqhekekeni ekusikeni machining imeko yokubanda okutsalwayo okanye ukuqhelanisa imeko yokufunxa okulungileyo esetyenziswa ngokubanzi xa kusenziwa amandla ayinkulu kwaye ayinzima kakhulu.
Intsimbi yeyomgangatho ophezulu we-carbon carbon steel, i-cold extrusion carburized hardening steel, intsimbi inamandla aphantsi, iqinile, iplastiki kunye ne-weldability, amandla okuqina angama-355-500mpa, isantya sobude be-24%
I-normalizing inokukhuthaza i-spheroidization yentsimbi, icokise i-block proeutectoid ferrite enkulu, kwaye iphucule ukusebenza kokusika kwezithuba ezingaphantsi kwe-160HBS.
Indlela yetekhnoloji yeintsimbiiinxalenye ezifayo zezi: i-casting forging die blank machine annealing machine rough machining cold extrusion molding recrystallization annealing machineing fine machining carburizing quenching the tempering grinding assembly

ukwakheka kweekhemikhali
C: 0.17% ~ 0.24%
ISi: 0.17% ~ 0.37%
Mnu: 0.35% ~ 0.65%
S: 0.035%
P: 0.035%
Cr: 0.25%
Ni: 0.25%
Kuba: 0.25
impahla yoomatshini
Amandla okuqina B (MPa) : ≥410(42)
Amandla esivuno S (MPa) : ≥245(25)
Elongation 5 (%) : ≥25
Ukunciphisa amasuntswana ommandla (%) : 55 okanye ngaphezulu
Ukuqina: akunyangwa bubushushu,≤156HB
Ubungakanani besampuli: Ubungakanani besampuli: 25mm

olunye ulwazi

Inkcazo yonyango lobushushu: i-normalizing, i-910 ℃, ukupholisa umoya.

Ubume beMetallographic: ferrite + pearlite.
Unyango lobushushuyentsimbi 20 kunye nokucima ubulukhuni bentsimbi no. 20:
Ukunyangwa kobushushu bentsimbi ye-20: Ngentsimbi ye-20, kunokwenzeka ukuba ufezekise ubulukhuni obuqhelekileyo bokucima i-30-35HRC.Ngenxa yokuba ubushushu bokufudumala buphezulu, i-deformation yokucima inkulu.Jonga:
1. Emva komatshini olukhuni, i-workpiece icinywa ngokupheleleyo ngonyango lobushushu (i-920 ℃ i-brine ecinyiweyo), kwaye emva koko iqhutywe.Ngenxa yeemfuno zobunzima be-30-35HRC, zonke iinkqubo kufuneka zikwazi ukucutshungulwa, akukho nto ngaphezu kwe-fine ngaphakathi. kwaye ngaphandle kwesangqa semoto, lungisa isitshixo.
2. Umatshini orhabaxa ofanayo, ukucinywa komngxuma ongaphakathi okanye isitshixo sokucinywa kwetafile kuphela (kuxhomekeke kubungakanani besixhobo sokusebenza), kwaye ekugqibeleni kugqitywe.
3. Ukungcwatywa kunye nokucima, ukugaya umngxuma ongaphakathi kunye nesitshixo.
Inkqubo yokuhamba yeyesibini, yesithathu kunye neyona nto ininzi.
● Imeko yonikezelo: ukuhanjiswa kwimeko yokungabikho konyango lobushushu okanye unyango lobushushu (i-annealing, normalizing okanye iqondo lobushushu eliphezulu). Ukuhanjiswa kwimeko yonyango lobushushu kuya kuboniswa kwikhontrakthi. Ukuba ayiboniswanga, ukuhanjiswa kuya kwenziwa ngaphandleunyango lobushushu.