SU463753A1 - Chromium blend - Google Patents
Chromium blendInfo
- Publication number
- SU463753A1 SU463753A1 SU1851628A SU1851628A SU463753A1 SU 463753 A1 SU463753 A1 SU 463753A1 SU 1851628 A SU1851628 A SU 1851628A SU 1851628 A SU1851628 A SU 1851628A SU 463753 A1 SU463753 A1 SU 463753A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- chromium
- blend
- mixture
- ammonium halide
- alumina
- Prior art date
Links
Landscapes
- Electroplating Methods And Accessories (AREA)
Description
(54) ХРОМИРУЮЩАЯ СМЕСЬ(54) CHROMING MIXTURE
1one
Изобретение относитс к химико-термической обработке, в частности к способу диффузионного хромировани стали.The invention relates to chemical heat treatment, in particular to the method of diffusion chromium plating of steel.
Известна хромирующа смесь, содержаща металлический хром, окись алюмини и галогенид аммони . Однако при применении этого типа смеси дл хромировани в структуре образуетс диффузионна подслойна зона столбчатых кристаллов феррита, наличие которого приводит к сниженпю твердости тонкой карбидной корки.A chromizing mixture containing metallic chromium, alumina and ammonium halide is known. However, when this type of mixture is used for chromium plating, a diffusion underlayer of ferrite columnar crystals forms in the structure, the presence of which leads to a decrease in the hardness of the thin carbide peel.
Дл повыщени качества диффузионного сло предлагаетс в хромирующую смесь вводить никель при следующем соотношении компонентов, вес. %:To improve the quality of the diffusion layer, it is proposed to introduce nickel into the chromium-containing mixture in the following ratio of components, wt. %:
Хром50-70Chrome 50-70
Галогенид аммони 0,2-2,0Ammonium halide 0.2-2.0
Никель1,0-5,0Nickel1.0-5.0
Окись алюмини ОстальноеAlumina Rest
Образцы ИЗ стали 2X13 после хромировани при 1000°С в течение 6 ч в смеси, состо щей ИЗ 70% Сг, 29% AlsOs, 10% и 4% Ni, не имеют подслойной зоны столбчатых кристаллов феррпта.Samples from 2X13 steel after chrome plating at 1000 ° C for 6 hours in a mixture consisting of 70% Cr, 29% AlsOs, 10% and 4% Ni, do not have a sub-layer of columnar ferrite crystals.
Предмет изобретени Subject invention
Хромирующа смесь, содержаща хром, галогенид аммони и окись алюмини , отличающа с тем, что, с целью повыщени качества диффузионного сло , она дополнительно содерлсит никель при следующем соотношении компонентов, вес. %:Chromium blend containing chromium, ammonium halide and alumina, characterized in that, in order to improve the quality of the diffusion layer, it additionally contains nickel in the following ratio of components, weight. %:
Хром50-70Chrome 50-70
Галогенид аммони 0,2-2,0Ammonium halide 0.2-2.0
Никель1,0-5,0Nickel1.0-5.0
Окись алюмини ОстальноеAlumina Rest
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1851628A SU463753A1 (en) | 1972-11-29 | 1972-11-29 | Chromium blend |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1851628A SU463753A1 (en) | 1972-11-29 | 1972-11-29 | Chromium blend |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU463753A1 true SU463753A1 (en) | 1975-03-15 |
Family
ID=20533497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1851628A SU463753A1 (en) | 1972-11-29 | 1972-11-29 | Chromium blend |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU463753A1 (en) |
-
1972
- 1972-11-29 SU SU1851628A patent/SU463753A1/en active
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