42crmo bir bir ah oo aan kala go 'lahayn

Sharaxaad Gaaban:

Tilmaamaha wax soo saarka:

Dhexroorka dibadda ee tuubada birta 20-426

Dhumucda gidaarka birta ee 20-426

Soo bandhigida alaabta:

Ujeedada 42crmo tuubo bir ah oo aan kala go 'lahayn: birta gaarka ah ee buundada waa "42crmo", birta khaaska ah ee gawaadhida gawaarida waa "42CRmo", birta gaarka ah ee markabka cadaadiska waa "42Crmo".Noocan birta ah waa in lagu tiirsado hagaajinta kaarboonka (C) si loo hagaajiyo sifooyinka farsamada ee birta, sidaas darteed, marka loo eego maadada kaarboon ee sare iyo hoose, birta noocan ah waxaa loo qaybin karaa: birta kaarboon yar - kaarboon Waxa ku jira guud ahaan wax ka yar 0.25%, sida 10, 20 bir, iwm;Birta kaarboon dhexdhexaadka ah – Waxa ku jira kaarboon guud ahaan waa inta u dhaxaysa 0.25 ~ 0.60%, sida 35, 45 steel, iwm.Birta noocaan ah sida caadiga ah looma isticmaalo in lagu sameeyo tubooyinka birta.

Tilmaamaha habraaca:

Tilmaamaha shaqada kulul

Heerkulka kulaylka 1150 ~ 1200 ° C, heerkulka bilawga 1130 ~ 1180 ° C, heerkulka dhamaadka> 850 ° C, φ> 50mm, qaboojin tartiib ah.

Caadiyan qeexida

Caadiyan heerkulka 850 ~ 900 ° C, oo ka baxsan hawo qabow foornada.

Tilmaamaha heerkulka sare ee heerkulka

Heerkulka heerkulka 680 ~ 700 ° C, oo ka baxsan hawada foornada qabow.

Tilmaamida deminta iyo xanaaqa

Heerkulka kuleylka 680 ~ 700 ° C, heerkulka deminta 840 ~ 880 ° C, qaboojinta saliidda, heerkulka heerkulka 580 ° C, qaboojinta biyaha ama qaboojinta saliidda, qallafsanaanta ≤217HBW.

Cadaynta qallafsanaanta iyo adkaynta hoos -deminta heerkulka

Heerkulka Deminta 900°C, Heerkulka heerkulka 560°C, Adag (37±1) HRC

Tilmaamidda qallafsanaanta iyo xanaaqa

Heerkulka deminta 900°C, heerkulka heerkulka 150 ~ 180°C, engegnaanta 54 ~ 60HRC.