FIELD: metallurgy.
SUBSTANCE: method includes heating up to temperature of above Ac3 in a furnace at the temperature of 920-940°C with soaking for two hours in a solid carbonaceous medium, cooling together with the furnace down to temperature of Ar1 making 727+10°C with soaking for at least two hours.
EFFECT: surface layer is produced on steel parts, having high hardness and wear resistance, while treatment time is reduced, quality of a cementation layer and transition area is improved.
1 ex
Title | Year | Author | Number |
---|---|---|---|
METHOD FOR GRAPHITIZATION OF LOW-CARBON STEELS COMBINED WITH PRELIMINARY CEMENTATION IN THE TEMPERATURE OF POLYMORPHOUS TRANSFORMATION TEMPERATURES | 2019 |
|
RU2695858C1 |
METHOD FOR LOW-TEMPERATURE CEMENTATION (LTC) OF STEEL | 2018 |
|
RU2709381C1 |
METHOD FOR RESOURCE-SAVING STEP CEMENTATION OF STEEL | 2020 |
|
RU2728479C1 |
METHOD OF RAPID CEMENTATION OF STEEL DETAILS | 2007 |
|
RU2355816C2 |
PROCEDURE FOR ALLOYING STEEL WITH ALUMINIUM | 2009 |
|
RU2431696C2 |
METHOD OF FAST CARBURIZING OF STEEL | 2004 |
|
RU2283893C2 |
METHOD FOR THERMO-CHEMICAL TREATMENT OF STEEL PRODUCTS | 1990 |
|
RU2061785C1 |
METHOD OF INCREASING RESISTANCE OF STEEL PIPELINES AGAINST CORROSION BY ALUMINIZING | 2014 |
|
RU2590738C1 |
METHOD OF COMBINED CHEMICAL-THERMAL PROCESSING OF STRUCTURAL HOT-STRENGTH STEEL | 2015 |
|
RU2606683C1 |
METHOD OF THERMAL TREATMENT OF CAST PARTS MADE OF LOW-ALLOYED AND CARBON STEELS | 2015 |
|
RU2672718C2 |
Authors
Dates
2012-10-10—Published
2011-06-15—Filed