| 顾荣华， 石秀东， 王 斌， 黄 巧， 许金州.食品砖包的超声波热封工艺试验研究[J].轻工机械,2017,35(5):57-60 |
| 食品砖包的超声波热封工艺试验研究 |
| Experimental Study on Ultrasonic Sealing Process of Food Brick Package |
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| DOI：10.3969/j.issn.1005 2895.2017.05.013 |
| 中文关键词: 超声波热封 砖包材料 焊接因素 热封强度 热封失效形式 |
| 英文关键词:ultrasonic heat sealing brick material welding factors sealing strength heat sealing failure form |
| 基金项目:国家科技支撑计划项目（2015BAF12B00） |
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| 中文摘要: |
| 为了解不同种食品砖包材料的超声波热封强度和工艺参数，采用正交法对3种砖包材料（纯塑材料、铝塑材料和纸铝塑材料）进行超声波热封试验并对其进行拉伸试验，研究每种材料的热封失效形式及最大拉断力。结果表明在同等工艺参数下，3种砖包材料的超声波热封强度大小依次为：纯塑材料>铝塑材料>纸铝塑材料。热封失效形式有2种：热封边缘处断裂和热封处材料剥离。3个焊接因素对3种砖包材料热封强度的影响主次关系和影响程度均不同。最后得出结论：3种试验材料中纯塑材料的超声波热封强度最高，但其热封边缘处易发生断裂而不适用于超声波热封；铝箔和纸的加入改变了3个焊接因素在超声波热封中的影响主次关系和影响程度。 |
| 英文摘要: |
| To study sealing strength and process parameters of different kinds of food brick in ultrasonic heat sealing, according to the three main ultrasonic heat sealing welding factors, ultrasonic heat sealing tests were performed on three kinds of brick packaging materials(pure plastic material, aluminum plastic material, aluminum paper plastic material)by using orthogonal and then tensile tests were performed that recording each kind of material heat sealing failure form and the maximum tensile force. Under the same conditions, three kinds of ultrasonic heat sealing strength of brick package material size was as follows: pure plastic material> aluminum plastic material > aluminum paper plastic material. There were two types of heat seal failure: thermal sealing edge fracture and thermal sealing material stripping. The influence of three welding factors on the thermal sealing strength of these three kinds of brick materials was different. Finally came to the conclusion the ultrasonic heat sealing strength of the pure plastic materials in the three kinds of test materials is the highest, but the thermal sealing edge is prone to fracture and not suitable for ultrasonic heat sealing. The addition of aluminum foil and paper changes the influence of three welding factors in ultrasonic heat sealing. |
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