FIELD: metallurgy.
SUBSTANCE: invention refers to metallurgy, particularly to chemical and thermal processing, and can be widely applied in mechanical engineering. The method involves heating and saturation at chrome boron coating temperature in powder mix containing the following components, wt %: boron carbide 0.5-25.0, chrome bromide 0.5-15.0, nickel chloride 0.1-2.0, sodium tetrafluoroborate 0.1-1.0, ammonium bromide 0.1-2.0, corundum 55-98.7, with heating and item saturation performed in hydrogen medium, and heating performed in two maturing stages: at 300-500°C for 3-10 minutes and at 600-900°C for 5-30 minutes, with gaseous products evacuated before cooling down.
EFFECT: improved quality of processed steel item surface, intensified process of chrome boron coating.
1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF CHROMOBORIC PLATING OF STEEL ITEMS | 2002 |
|
RU2230826C1 |
| METHOD OF CHROME BORON COATING OF STEEL ITEMS | 2002 |
|
RU2391439C2 |
| METHOD OF BORON CHROMIUM PLATING OF STEEL ARTICLES | 2002 |
|
RU2220225C1 |
| METHOD AND COMPOSITION FOR BOROCHROME PLATING OF STEEL PRODUCTS IN FLUIDIZED BED | 1996 |
|
RU2157859C2 |
| METHOD OF BORON-NICKEL PLATING OF STEEL PARTS IN FLUIDIZED BED | 2001 |
|
RU2190688C1 |
| METHOD OF BORON-NITRIDING OF STEEL ARTICLES IN FLUIDIZED BED | 2001 |
|
RU2194793C1 |
| METHOD OF BORON-SILICON CLADDING OF STEEL ARTICLES IN FLUIDIZED BED | 2001 |
|
RU2190689C1 |
| FLUIDIZED BED PROCESS FOR BORON-NICKELIZING OF STEEL OBJECTS | 1995 |
|
RU2149917C1 |
| METHOD OF BORIDING-CHROMIZING OF STEEL PRODUCTS | 0 |
|
SU1659528A1 |
| METHOD FOR DIFFUSION CHROME-PLATING OF STEEL PRODUCTS IN FLUIDIZED BED | 2002 |
|
RU2209847C1 |
