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In order to solve the problem of small adhesion on the surface of aluminum wire during insulating for conductor in transmission and transformation equipment, the adhesion mechanism of conductor insulation coating was described in detail, and the experimental theory and method of laser cleaning were analyzed. The effect of laser cleaning times on the roughness was studied by experiments, and then pull method and shear method for measuring adhesion were compared and analyzed. The results show that the surface roughness Ra decreases significantly after cleaning for many times, and the first cleaning efficiency is proportional to the coverage energy per pulse area. However, when Ra reaches to 2.5 μm, the cleaning effect begins to slow down. The reduction of roughness can effectively improve the adhesion of the insulating coating surface, the adhesion of epoxy resin and silicone rubber on aluminum plate begins to decrease again when the surface roughness Ra reaches to 4.5 μm and 4.0 μm, respectively.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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