周浩楠,王丹,邓卫斌.面向工业设计的塑料表面铝涂层的结合强度[J].表面技术,2016,45(3):103-108.
ZHOU Hao-nan,WANG Dan,DENG Wei-bin.The Bonding Strength of the Industrial Design for a Plastic Surface Coating of Aluminum[J].Surface Technology,2016,45(3):103-108 |
| 面向工业设计的塑料表面铝涂层的结合强度 |
| The Bonding Strength of the Industrial Design for a Plastic Surface Coating of Aluminum |
| 投稿时间：2015-10-12 修订日期：2016-03-20 |
| DOI：10.16490/j.cnki.issn.1001-3660.2016.03.017 |
| 中文关键词: 工业设计材料 电弧喷涂 结合强度 铝涂层 环氧树脂塑料 ABS塑料 接触角 |
| 英文关键词:industrial design material electric arc spraying bond strength aluminum coating epoxy plastics ABS plastic contact angle |
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| 中文摘要: |
| 目的 采用电弧喷涂方法，在环氧树脂和ABS塑料表面喷涂铝涂层，研究涂层结合强度的影响因素。方法 第一组试验是塑料表面喷砂后，喷涂铝涂层，第二组是塑料表面喷砂后，涂覆一层高强度环氧树脂结构胶，再喷涂铝涂层，选择喷涂气体压力、喷涂电流和喷涂距离三因素进行正交试验，粘结拉伸法测试结合强度，照相法测量铝液和环氧树脂塑料、Q235钢的接触角。结果 本试验条件下，二种塑料电弧喷涂铝涂层结合强度的影响因素主次顺序为： 空气压力→喷涂电流→喷涂距离。最优方案是：喷涂气体压力0.7 MPa，喷涂电流 220 A，喷涂距离 160mm。未涂覆高强度环氧树脂结构胶的涂层，结合强度最大不超过3MPa，涂覆高强度环氧树脂结构胶的涂层，结合强度达到近20MPa。铝液和Q235钢的接触角是45℃，和环氧树脂塑料的接触角是135℃。结论 环氧树脂和ABS塑料表面电弧喷涂铝涂层的结合强度低的主要原因是铝液和它们之间的润湿性差。涂覆高强度环氧树脂结构胶后，喷涂工艺参数对涂层的结合强度影响不明显，结合强度受控于环氧树脂结构胶的粘结作用，使涂层的结合强度显著提高。 |
| 英文摘要: |
| Objective On the epoxy resin and ABS plastic surface sprayed aluminum coatings by electric arc spraying, studies the factors affecting the bonding strength of coating. Methods The first set of tests, sprayed aluminum coatings after plastic surface spraying sand. The second group , in the plastic surface after spray sand coated with a layer of high-strength epoxy resin structural adhesive, and then sprayed aluminum coatings, Select spraying gas pressure, spray current and spray distance three-factor orthogonal experiment, tested bond strength by tensile method, photographic method to measure the liquid aluminum and epoxy plastics, the contact angle of Q235 steel. Results Under this experimental conditions, two kinds of plastic electric arc spraying aluminum primary and secondary order of the factors affecting the bonding strength of coating: air pressure, spray current, spraying distance. Optimal solution: Spraying gas pressure:0.7MPa; spraying current:220A; spraying distance:160mm.Uncoated high-strength epoxy structural adhesive coating, bonding strength maximum of 3MPa; Coated with high strength epoxy structural adhesive coating, bonding strength to nearly 20MPa. The contact angle of molten aluminum and Q235 steel is 45℃ and epoxy plastic is 135℃. Conclusion Epoxy resin and ABS plastic surface low bond strength of arc sprayed aluminum coating, which main reason was the poor wettability of liquid aluminum and between them. After coated with high strength epoxy resin structural adhesive, The combination of the spraying process parameters on the coating strength effect was not obvious, bonding strength was controlled by the binding effect of epoxy structural adhesive to make the coating bond strength improved significantly. |
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