FIELD: metallurgy.
SUBSTANCE: proposed method comprises the following steps: smelting from iron or scrap-iron, teeming, heating in furnace, piercing the billets, elongating pierced billets, finishing hollow billets, forging an final mechanical machining. Besides it includes thermal processing and flaw inspection of surface defects at axle.
EFFECT: high fatigue strength, higher yield point and tenacity, decreased weight.
33 cl, 11 dwg, 3 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| SEAMLESS STEEL PIPE AND METHOD OF ITS PRODUCTION | 2017 |
|
RU2697999C1 |
| MANUFACTURING METHOD OF SEAMLESS STEEL PIPE | 2006 |
|
RU2377320C2 |
| SEAMLESS STEEL PIPE AND METHOD OF ITS PRODUCTION | 2016 |
|
RU2706257C1 |
| SEAMLESS STEEL PIPE FOR MULTISTAGE OIL CYLINDER AND ITS MANUFACTURING METHOD | 2020 |
|
RU2758739C1 |
| SEAMLESS OIL-GRADE PIPE MADE OF HIGH-STRENGTH CORROSION-RESISTANT MARTENSITIC STEEL AND METHOD FOR ITS PRODUCTION | 2021 |
|
RU2807645C2 |
| OIL AND GAS FIELD SEAMLESS PIPE FROM MARTENSITE STAINLESS STEEL AND METHOD OF ITS MANUFACTURING | 2008 |
|
RU2468112C1 |
| SEAMLESS HIGH-STRENGTH PIPE OF STEEL OF MARTENSITE GRADE FOR CASING STRINGS AND ITS PRODUCTION METHOD | 2021 |
|
RU2787205C2 |
| SEAMLESS HIGH-STRENGTH MARTENSITIC STEEL PIPE FOR CASING AND ITS MANUFACTURING METHOD | 2022 |
|
RU2798642C1 |
| THIN PIECE OF BETA-TITANIUM OR QUASI-BETA-TITANIUM ALLOY AND A METHOD OF MANUFACTURING SUCH THIN PIECE USING FORGING TECHNIQUE | 2003 |
|
RU2303642C2 |
| METHOD OF MANUFACTURE OF STEEL MONOSHEET ARMORED MEMBERS B 100 ST | 1999 |
|
RU2139357C1 |
