亚洲综合无码久久精品综合 I 人妻互换一二三区激情视频 I 国产福利视频一区二区 I 夜夜高潮夜夜爽夜夜爱爱 I 欧美又大粗又爽又黄大片视频 I 激情爆乳一区二区三区 I xx性欧美肥妇精品久久久久久 I 日韩精品专区在线影院重磅 I 亚洲精品久久久久久一区二区 I av香港经典三级级 在线 I 少妇熟女视频一区二区三区 I 日本亚洲色大成网站www久久 I 狠狠躁夜夜躁人人爽天天5 I 亚洲最大的成人网 I 正在播放酒店约少妇高潮 I 在线成人精品国产区免费 I av片在线播放 I 国产精品久久久久久超碰 I b站永久免费看片大全 I 久久婷婷国产剧情内射白浆 I 亚洲爆乳精品无码一区二区三区 I 国产一卡二卡三卡四卡 I 玩弄中年熟妇正在播放 I 国产精品久久久久久亚洲色 I 级r片内射在线视频播放 I 欧美牲交a欧美牲交aⅴ I 一区二区视频 I 免费看成人欧美片爱潮app I 水蜜桃色314在线观看 I 亚洲在线 I 久久久精品一区aaa片 I 熟妇人妻无乱码中文字幕真矢织江 I 国产亚洲精品久久久久久打不开 I 国产精品无码久久久久久 I 无码人妻精品一区二区在线视频

Vacuum forming can be divided into vacuum forming and compressed air forming. Compressed air forming is an upgraded version of vacuum forming with improved technology, higher efficiency, faster speed and better forming effect on the basis of vacuum forming. Whether vacuum forming or air forming, both of them go through the same process:

1. Mold design and production

2. Purchase of vacuum forming materials

3. Vacuum (air pressure) forming production

4. Product inspection, baling and delivery

At present, common materials used in vacuum forming include HIPS, PP, PET, PVC, PP, ABS, PE, etc... HIPS and PP are mainly produced with white and black materials, HIPS features are more brittle, and PP materials are more tough; In addition, the production of PET and PVC is mainly based on transparent materials. PVC is relatively strong in toughness compared with PET. However, the import of PVC is prohibited in eu, Japan, Australia and other countries due to environmental protection reasons. PE, ABS market share is relatively small. The above materials can be made in various colors upon customer's request.

Mould making. Vacuum forming is generally divided into gypsum mold, copper mold, aluminum mold. Gypsum moulds are generally used for trial samples, and the mass production is mainly copper moulds. Large quantity and high quality requirements of the product will choose aluminum mold production. Because gypsum characteristic is brittle, unfavorable mass production, copper mold is copper electrolysis after infiltration fill gypsum. Mass production time is long, gypsum and copper shell separation leads to product deformation, and aluminum mold life is long, good quality! However, due to the high precision and high speed of the air die, the design of the die must consider the cold water cycle cooling after the vacuum forming die is heated. The mold material must be made of aluminum and steel by CNC, and the cost is more than 10 times that of the vacuum aluminum mold.

The vacuum forming die, material and production process flow are provided by Suzhou blister packaging products of Jinaowei. Keywords: blister, blister packaging.