FIELD: metallurgy.
SUBSTANCE: invention refers to metallurgy, particularly to chemical and thermal processing, and can be widely applied in mechanical engineering for prolongation of machine part life time. Chrome boron coating is performed in fluidised layer of powder mix. Mix contains, (wt %): boron carbide 1-30.0, chrome chloride CrCl2 0.5-10.0, aluminium fluoride 0.1-2.0, copper chloride CuCl2 0.1-3.0, corundum 55-98.3. Heating and saturation are performed in ammonia medium. Maturing is performed at 300-500°C for 3-15 minutes. Saturation is performed at 600-1200°C. Method allows for improvement of surface finish quality.
EFFECT: improved quality of surface finish, reduced time of processing in saturation mix.
1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF BORON CHROMIUM PLATING OF STEEL ARTICLES | 2002 |
|
RU2220225C1 |
| METHOD OF CHROME BORON COATING OF STEEL ITEMS | 2002 |
|
RU2391441C2 |
| METHOD OF CHROMOBORIC PLATING OF STEEL ITEMS | 2002 |
|
RU2230826C1 |
| METHOD AND COMPOSITION FOR BOROCHROME PLATING OF STEEL PRODUCTS IN FLUIDIZED BED | 1996 |
|
RU2157859C2 |
| METHOD OF BORON-SILICON CLADDING OF STEEL ARTICLES | 2002 |
|
RU2223345C2 |
| METHOD OF SILICON BORON COATING OF STEEL ITEMS | 2002 |
|
RU2391440C2 |
| METHOD OF BORON-NICKEL PLATING OF STEEL PARTS IN FLUIDIZED BED | 2001 |
|
RU2190688C1 |
| METHOD OF BORON-SILICON CLADDING OF STEEL ARTICLES IN FLUIDIZED BED | 2001 |
|
RU2190689C1 |
| METHOD OF BORON-NITRIDING OF STEEL ARTICLES IN FLUIDIZED BED | 2001 |
|
RU2194793C1 |
| METHOD OF BORIDING-CHROMIZING OF STEEL PRODUCTS | 0 |
|
SU1659528A1 |
