SU140297A1 - The method of removing scale from the surface of semi-finished titanium and its alloys - Google Patents
The method of removing scale from the surface of semi-finished titanium and its alloysInfo
- Publication number
- SU140297A1 SU140297A1 SU683022A SU683022A SU140297A1 SU 140297 A1 SU140297 A1 SU 140297A1 SU 683022 A SU683022 A SU 683022A SU 683022 A SU683022 A SU 683022A SU 140297 A1 SU140297 A1 SU 140297A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- semi
- alloys
- scale
- titanium
- removing scale
- Prior art date
Links
Landscapes
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Description
Удаление окалины с поверхности полуфабрикатов титана и его сплавов обычно осу 1,ествл етс путем обработки этих полуфабрикатов либо в растворе едкого натра, содержащего добавки нитрита и нитрата натри , либо в расплаве едкого натра с такими же добавками при температуре 450-460°.Scale removal from the surface of semi-finished products of titanium and its alloys is usually wasp 1, processed by processing these semi-finished products either in caustic soda solution containing additives of nitrite and sodium nitrate, or in a melt of caustic soda with the same additives at a temperature of 450-460 °.
При обработке титана и его сплавов в щелочных растворах недостаточно полно удал етс окалина, а при обработке в расплаве едкого натра при температуре 450-460° возможно возгорание титановых сплавов.When processing titanium and its alloys in alkaline solutions, scale is not sufficiently removed, and when processed in a melt of caustic soda at a temperature of 450-460 ° C, it is possible for the titanium alloys to ignite.
Предлагаемый способ в отличие от известных обеспечивает более быстрое и более полное разрыхление и разрушение окалины и устран ет возможность самовозгорани металла.The proposed method, in contrast to the known ones, provides faster and more complete loosening and destruction of scale and eliminates the possibility of spontaneous combustion of the metal.
Особенность способа состоит в том, что удаление окалины с поверхности полуфабрикатов титана и его сплавов производитс в расплаве смеси едкого натра и едкого кали, вз тых в весовых соотнощени х 1 : 1 при температуре пор дка 300°.A feature of the method is that the removal of scale from the surface of semi-finished products of titanium and its alloys is carried out in a melt of a mixture of caustic soda and caustic potash, taken in a weight ratio of 1: 1 at a temperature of about 300 °.
Продолжителы-юсть обработки сплавов в расплаве зависит от температуры , при которой образовывалась окалина. Так, образцы сплава ВТ-1, окисленные при 700°, достаточно выдержать в расплаве в течение 10 мин, а образцы, окисленные при 800°, следует обрабатывать в расплаве в течение 30 мин. После обработки полуфабрикатов в расплаве щелочей разрыхленна окалина удал етс с поверхности металла проволочной щеткой под струей воды.The duration of the processing of alloys in the melt depends on the temperature at which the scale was formed. Thus, VT-1 alloy samples oxidized at 700 ° are sufficient to hold in the melt for 10 minutes, and samples oxidized at 800 ° should be processed in the melt for 30 minutes. After processing the semi-finished products in the molten alkali, the loosened scale is removed from the metal surface with a wire brush under a stream of water.
Удаление окалины описанным способом обеспечивает получение полуфабрикатов с гладкой блест щей поверхностью; суммарные весовые потери металла составл ют 5-6 дл полуфабрикатов, окисленных при 700°, и 13-19 дл полуфабрикатов, окисленных при 800°.Descaling in the manner described above provides semi-finished products with a smooth shiny surface; the total metal weight loss is 5-6 for semi-finished products oxidized at 700 °, and 13-19 for semi-finished products oxidized at 800 °.
Ь 140297- 2 -Способ может примен тьс дл удалени окалины с поверхности титана и всех промышленных титановых сплавов {ВТ-1, ОТ-4, ВТ-6 и др).The bp 140297-2 process can be used to remove scale from the surface of titanium and all industrial titanium alloys {BT-1, OT-4, BT-6, and others).
Предмет изобретени Subject invention
Способ удалени окалины с поверхности полуфабрикатов титана ч его сплавов в расплаве с последующим удалением разрыхленной окалины металлическими проволочными щетками, отличающийс тем, что, с целью ускорени и улучщени процесса разрыхлени и разрущени окалины с уменьщением отходов титана и устранени самовозгорани , обработку ведут в расплаве смеси едкого натра и едкого кали, вз тых в весовых соотнощени х 1 : 1 при температуре пор дка 300°.A method of removing scale from the surface of titanium semi-finished products in its melt alloys with subsequent removal of loosened scale by metal wire brushes, characterized in that, in order to accelerate and improve the process of opening and destruction of scale with decreasing titanium waste and eliminating spontaneous combustion, the treatment is molten in the food mixture. soda and caustic potash taken in weight ratios of 1: 1 at a temperature of about 300 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU683022A SU140297A1 (en) | 1960-10-21 | 1960-10-21 | The method of removing scale from the surface of semi-finished titanium and its alloys |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU683022A SU140297A1 (en) | 1960-10-21 | 1960-10-21 | The method of removing scale from the surface of semi-finished titanium and its alloys |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU140297A1 true SU140297A1 (en) | 1960-11-30 |
Family
ID=48296312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU683022A SU140297A1 (en) | 1960-10-21 | 1960-10-21 | The method of removing scale from the surface of semi-finished titanium and its alloys |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU140297A1 (en) |
-
1960
- 1960-10-21 SU SU683022A patent/SU140297A1/en active
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