SU432959A1 - PROTECTIVE COATING FOR EASY-ACID METAL DURING THEIR HEATING - Google Patents
PROTECTIVE COATING FOR EASY-ACID METAL DURING THEIR HEATINGInfo
- Publication number
- SU432959A1 SU432959A1 SU1816795A SU1816795A SU432959A1 SU 432959 A1 SU432959 A1 SU 432959A1 SU 1816795 A SU1816795 A SU 1816795A SU 1816795 A SU1816795 A SU 1816795A SU 432959 A1 SU432959 A1 SU 432959A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- protective coating
- heating
- easy
- acid metal
- metal during
- Prior art date
Links
Landscapes
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Description
1one
Изобретение относитс к составу защитных покрытий, примен емых дл предотвращени окислени поверхности заготовок из легкоокисл ющихс металлов при нагреве их перед обработкой давлением. Однако характеризуютс недостаточным предохранением от окислени при нагреве и выдержке перед обработкой давлением.The invention relates to the composition of protective coatings used to prevent the oxidation of the surface of billets of light-acidic metals when heated prior to pressure treatment. However, they are characterized by inadequate protection from oxidation during heating and aging prior to pressure treatment.
Дл повышени надежности в качестве защитного покрыти дл легкоокисл ющихс металлов при их нагреве перед обработкой давлением примен етс безводный сернистокислый натрий.In order to increase reliability, anhydrous sodium sulphite is used as a protective coating for light-acidic metals when they are heated prior to pressure treatment.
В какую-либо емкость насыпают необходимое количество безводного сернистокислого натри , затем в порошке обкатывают предварительно нагретую до 850-900°С заготовку из легкоокисл ющегос металла. Вследствие хорошего налипани на поверхности заготовки образуетс пленка сернистокислого натри The required amount of anhydrous sodium sulphite is poured into any container, then a pre-heated to easily heated metal of 850–900 ° C is rolled in the powder. Due to good adhesion, a film of sodium sulfite is formed on the surface of the workpiece.
(безводного), предотвращающа окисление металла заготовки при последующем нагреве. При обработке давлением в несколько приемов необходимо после каждого приема деформации производить восстановление защитного покрыти путем обкатывани заготовки в порошке сернистокислого натри (безводного ), так как при обработке давлением защитна пленка нарушаетс .(anhydrous), preventing the oxidation of the metal of the workpiece during subsequent heating. In multi-stage pressure treatment, it is necessary to restore the protective coating after each deformation reception by rolling the preform in sodium sulfite (anhydrous) powder, since the protective film is broken during pressure treatment.
В процессе деформации защитна пленка служит технологической смазкой, а после обработки давлением и охлаждени заготовки легко удал етс путем промывки заготовок в гор чей воде.During the deformation process, the protective film serves as a process lubricant, and after pressure treatment and cooling of the workpiece, it is easily removed by washing the workpieces in hot water.
Предмет изобретени Subject invention
Применение безводного сернистокислого натри в качестве защитного покрыти дл легкоокисл ющихс металлов при их нагреве перед обработкой давлением.The use of anhydrous sodium sulphite as a protective coating for light-oxidizing metals when heated prior to pressure treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1816795A SU432959A1 (en) | 1972-07-25 | 1972-07-25 | PROTECTIVE COATING FOR EASY-ACID METAL DURING THEIR HEATING |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1816795A SU432959A1 (en) | 1972-07-25 | 1972-07-25 | PROTECTIVE COATING FOR EASY-ACID METAL DURING THEIR HEATING |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU432959A1 true SU432959A1 (en) | 1974-06-25 |
Family
ID=20523759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1816795A SU432959A1 (en) | 1972-07-25 | 1972-07-25 | PROTECTIVE COATING FOR EASY-ACID METAL DURING THEIR HEATING |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU432959A1 (en) |
-
1972
- 1972-07-25 SU SU1816795A patent/SU432959A1/en active
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