Full
Outline
Polypropylene (PP) resin automotive bumpers tend to accumulate static electricity due to their high insulation, which causes particles to firmly adsorb on the surface through Coulomb force, and also leads to safety hazards and reduced coating efficiency when grounding performance is poor during electrostatic spraying. Taking the full bumper coating process as the research object, this paper systematically analyzes the static electricity accumulation mechanism and particle force characteristics of bumper materials, proposes a collaborative destaticization and dust removal process scheme that combines ionized-air pre-treatment with ionized-air purgingThe working principle, calibration method, and process implementation procedure of a non-contact electrostatic grounding detection system are also described in detail. Practical results show that the integrated ionized air application scheme can significantly reduce the number of particles after baking, and the grounding detection system can effectively eliminate the safety hazards of electrostatic spraying. The organic combination of the 2 comprehensively improves both the quality and safety of bumper coating, achieving the production goal of cost reduction and efficiency improvement.
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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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