| 摘要 |
FIELD: power industry. ^ SUBSTANCE: sectional heating radiator includes supply and discharge aluminium headers for heat carrier passage and aluminium tubular sections as heat sinks; the new feature is that external and internal surfaces of heat sinks, as well as internal surfaces of supply and discharge headers are provided with coating from aluminium oxide, which is applied by plasma chemical method; at that, coating thickness of external surfaces of heat sinks is 5Ç10 mcm, and that of internal surfaces of headers is 20Ç100 mcm. ^ EFFECT: increasing radiation coefficient, which allows reducing the surface area of radiators, reducing the number of sections or heat carrier flow rate, reducing corrosion and erosion wear and improving ornamentality without any additional coating. |
