SU1585381A1 - Method of chemical and thermal treating of steel articles - Google Patents
Method of chemical and thermal treating of steel articles Download PDFInfo
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- SU1585381A1 SU1585381A1 SU884490994A SU4490994A SU1585381A1 SU 1585381 A1 SU1585381 A1 SU 1585381A1 SU 884490994 A SU884490994 A SU 884490994A SU 4490994 A SU4490994 A SU 4490994A SU 1585381 A1 SU1585381 A1 SU 1585381A1
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- SU
- USSR - Soviet Union
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- chemical
- carbide
- heat treatment
- wear resistance
- increases
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- Chemically Coating (AREA)
Abstract
Изобретение относитс к химико-термической обработке стальных изделий, в частности к получению на их поверхности карбидных покрытий, и может быть использовано в машиностроении, химической и приборостроительной промышленности. Цель изобретени - повышение износостойкости изделий, а также увеличение кратности использовани насыщающей смеси. Сущность предлагаемого способа состоит в том, что на поверхность издели наноситс паста, содержаща , мас.% : графит 10...16, вазелин 90...84 непосредственно перед упаковкой его в контейнер с порошковой алюмотермической смесью на основе оксидов переходных металлов дл проведени химико-термической обработки при 1000...1150°С. В процессе термодиффузионного насыщени паста вл етс дополнительным источником углерода, необходимого дл формировани карбидного сло . В результате в структуре сло отсутствует обезуглероженна разупрочненна зона, увеличиваетс толщина карбидной зоны диффузионного сло в 1,1...2 раза, повышаетс кратность использовани смесей в 2...4 раза, увеличиваетс износостойкость покрыти в 1,2...2,4 раза по сравнению с покрыти ми, полученными способом, прин тым за прототип.The invention relates to the chemical-heat treatment of steel products, in particular to the preparation of carbide coatings on their surface, and can be used in mechanical engineering, chemical and instrument-making industries. The purpose of the invention is to increase the wear resistance of products, as well as increase the frequency of use of the saturating mixture. The essence of the proposed method is that a paste is applied to the surface of the product, containing, wt.%: Graphite 10 ... 16, petrolatum 90 ... 84 immediately before packaging it in a container with an aluminothermic powder mixture based on transition metal oxides for chemical heat treatment at 1000 ... 1150 ° С. In the process of thermal diffusion saturation, the paste is an additional source of carbon necessary for the formation of the carbide layer. As a result, in the layer structure there is no decarbonized softening zone, the thickness of the carbide zone of the diffusion layer increases by 1.1 ... 2 times, the use ratio of mixtures increases by 2 ... 4 times, the wear resistance of the coating increases by 1.2 ... 2, 4 times compared with the coatings obtained by the method adopted for the prototype.
Description
Анализ результатов позвол ет сделать аывод об увеличении толщины покрытий , полученных предлагаемым способом , в 1,,0 раза, повышении кратности использовани смесей до 2-Ц раз и увеличении износостойкости покрытий в 1,2-2,4 раза по сравнению с покрыти ми, полученными известным способом.Analysis of the results makes it possible to make an conclusion about increasing the thickness of the coatings obtained by the proposed method by 1, 0 times, increasing the ratio of mixtures to 2-C times and increasing the wear resistance of coatings by 1.2-2.4 times compared to coatings obtained in a known manner.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU884490994A SU1585381A1 (en) | 1988-07-11 | 1988-07-11 | Method of chemical and thermal treating of steel articles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU884490994A SU1585381A1 (en) | 1988-07-11 | 1988-07-11 | Method of chemical and thermal treating of steel articles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1585381A1 true SU1585381A1 (en) | 1990-08-15 |
Family
ID=21402875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU884490994A SU1585381A1 (en) | 1988-07-11 | 1988-07-11 | Method of chemical and thermal treating of steel articles |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1585381A1 (en) |
-
1988
- 1988-07-11 SU SU884490994A patent/SU1585381A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Борисенок Г.В., Васильев Л.А., Ворошин Л.Г. и др. Химико-термическа обработка металлов и сплавов. Справочник. M.s Металлурги , 1981, с.390. () СПОСОБ ХИМИКО-ТЕРМИЧЕСКОЙ ОБРАБОТКИ СТАЛЬНЫХ ИЗДЕЛИЙ * |
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