FIELD: machine building.
SUBSTANCE: invention relates to machine building, particularly, to heat treatment of bearing rings. Method of steel ring bearing processing comprises stepwise heating in vacuum in closed chamber b, further nitrogen cooling under pressure in closed chamber and three-time tempering. Steel used for making rings contains, wt%: tungsten 8.5–9.5, chromium 4.0–4.6, vanadium 1.4–1.7, carbon 0.7–0.8, manganese ≤0.40, silicon ≤0.40, nickel ≤0.35, molybdenum ≤0.3, phosphorus ≤0.03, sulfur ≤0.03, iron – the rest.
EFFECT: technical result of proposed solution consists in improvement of quality of bearing ring and manufacturability of treatment.
1 cl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR HEAT TREATMENT OF BEARING PARTS MADE OF HEAT-RESISTANT BEARING STEEL (VARIANT) AND THE BEARING PART OBTAINED BY THE SPECIFIED METHOD | 2021 |
|
RU2776341C1 |
| METHOD OF HEAT TREATMENT OF STEEL PARTS | 2022 |
|
RU2795332C1 |
| METHOD OF HEAT TREATMENT OF STEEL PARTS | 2022 |
|
RU2800483C1 |
| METHOD OF THERMAL TREATMENT OF HIGH-PRECISION PARTS OUT OF SPRING SILICON STEELS | 2014 |
|
RU2564805C1 |
| METHOD OF HARDENING OF ARTICLES FROM STEELS AND ALLOYS | 2000 |
|
RU2186859C2 |
| METHOD OF THERMAL TREATMENT OF CUTTING TOOLS MADE OF HIGH-SPEED STEEL | 1990 |
|
RU2010870C1 |
| HIGH-SPEED TOOL HEAT TREATMENT | 2013 |
|
RU2535817C1 |
| HARDENING OF STEEL PARTS METHOD | 2014 |
|
RU2562598C2 |
| METHOD OF HEAT TREATMENT OF PRODUCTS | 1995 |
|
RU2087549C1 |
| METHOD OF THERMAL TREATMENT OF HEADS AND HEAVY-LOAD DIES | 2012 |
|
RU2471878C1 |
