SU544689A1 - The way to protect metals from oxidation during thermal and mechanical heat treatment - Google Patents
The way to protect metals from oxidation during thermal and mechanical heat treatmentInfo
- Publication number
- SU544689A1 SU544689A1 SU2101261A SU2101261A SU544689A1 SU 544689 A1 SU544689 A1 SU 544689A1 SU 2101261 A SU2101261 A SU 2101261A SU 2101261 A SU2101261 A SU 2101261A SU 544689 A1 SU544689 A1 SU 544689A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- during thermal
- heat treatment
- oxidation during
- way
- mechanical heat
- Prior art date
Links
Landscapes
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Description
крупности частиц 0,08 мм. Шликер нанос т на нодслой кварцевого стекла и сушат нрн 100-120°С.particle size 0.08 mm. The slip is applied to the quartz glass nozzle and dried at 100-120 ° C.
При нагреве издели (при 400-500°С) онлавл етс основное иокрытие, нрегражда достун кислорода к защищаемому изделию. При 1000°С в расплавленном слое покрыти раствор етс фракци кварцевого стекла до 0,1 мм, более крупна фракци иретерневает р д полиморфных превращений, которые ири снижении темнературы до 170°С способствуют отслаиванию покрыти .When the product is heated (at 400-500 ° C), the main coating is closed, preventing oxygen from reaching the protected item. At 1000 ° C, a fraction of silica glass up to 0.1 mm dissolves in the molten layer of the coating, and a larger fraction dissolves a number of polymorphic transformations, which, when reduced to 170 ° C, contribute to the exfoliation of the coating.
Таким образом, данное сочетание подсло н основного покрыти позвол ет получить защитное покрытие, которое самопроизвольно отслаиваетс при остывании заготовки.Thus, this combination of undercoat and base coat allows to obtain a protective coating, which spontaneously peels off when the preform is cooled.
При прессованнн заготовок на горизонтальном гидравлическом прессе усилием 1600 т при нагреве заготовок до 1000-1100°С, скорости ирессовани 300-400 мм/сек с коэффициентом выт жки 24 после остывани заготовок иокрыти полностью отслаиваютс . На заготовках без подсло кварцевого стекла в аналогичных услови х покрытие не отслаиваетс . Такое покрытие .требуетс удал ть в расплаве И1,слочи ири 450°С.When pressed blanks on a horizontal hydraulic press with a force of 1600 tons when heating the blanks to 1000-1100 ° C, the speed of pressing is 300-400 mm / sec with a stretch ratio of 24 after cooling the blanks and the cover is completely peeled off. On blanks without a quartz sublayer under similar conditions, the coating does not peel off. Such a coating is required to be removed in the melt I1, and the slots are 450 ° C.
На наружной поверхности труб при прессовании из втзлок диаметром 140 мм при указанных услови х имеетс незначительна щероховатость , что свидетельствует о хороших смазочных свойствах иокрыти .There is a slight roughness on the outer surface of the pipes when pressing out of a block with a diameter of 140 mm under the specified conditions, which indicates good lubricating properties of the cover.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU2101261A SU544689A1 (en) | 1975-01-21 | 1975-01-21 | The way to protect metals from oxidation during thermal and mechanical heat treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU2101261A SU544689A1 (en) | 1975-01-21 | 1975-01-21 | The way to protect metals from oxidation during thermal and mechanical heat treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU544689A1 true SU544689A1 (en) | 1977-01-30 |
Family
ID=20608823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU2101261A SU544689A1 (en) | 1975-01-21 | 1975-01-21 | The way to protect metals from oxidation during thermal and mechanical heat treatment |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU544689A1 (en) |
-
1975
- 1975-01-21 SU SU2101261A patent/SU544689A1/en active
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