Home About YZJ PP Straps Making Machine Blow molding machine Plastic Recycling Machine Purchase And Service News Center Messages On Line Relate Us
Plastic Recycling Machine
Plastic machinery
PP Strapping Band
News Center

Blow Moulding Machine

Time:2011-7-22 Click:2116 【Font:Big Medium Small】 【Double-click the mouse scroll】

    Plastic hollow articles can be found everywhere. Plastic hollow articles are used for packing, storing, transport or guiding of liquids or other bulky goods such as pwerders or the like. These plastics hollow articles are bottles, cans, drums, and tanks, but also pipes, tubes, or ducts. Plastic hollow articles are used besides bormal packaging applications to provide protection; for example protective cases for sensitive electronic equipment. Due to the double wall structure, rigid lightweight structureal components can be made of plastic hollow articles as well, e.go, transportation pallets, seat structures or all kinds of panels.
The equipment is presented that help understand extrusion blow moulding fundamentals as below:
A blow moulding machine can be devided into several subsystems, which will be described below. The extruder, including material hopper, screw, DC (mostly) or AC drive, and heating for plasticizing and  preparation of the thermoplastic melt.
In extrusion blow moulding, extruder barrels with grooved feed zones are most used. These extruders feature an output behavior commonly is independent from the counter pressure. This is important considering that the wall thickness cantrol works with variable die gaps, which obviously leads to varying counter pressures. In order to prevent melting in the grooved feed zone ( especially with polyolefins), this feed zone has to be cooled. In most cases, this is performed by a separate water cooling circuit controlled via a proportional valve.
The screws used in extrusion blow moulding are basically the same as those used in conventional extrusion processes. There are three-section screws, barrier screws, screws with different mixing and dispersion devoices, and certain specially developed screws, such as screws for processing 6-layers coextrusion regind.


Print this page】【Back to】【Close
Related Information:
China's packaging machinery to be fine professionals strive to catch up with international
UK academic urges industry to act on waste issue
Blow molding equipment
PET Blow Moulding Machines
Blow moulding machine has the advantage of simplifying

Sichuan Ziyang Yazhijiang Plastics Industry Co.,Ltd. Add:Industrial Area of Houjiaping,Ziyang City,Sichuan,China,P.C.:641300
plastic bottle blowing machine blow molding machine PP Straps Making Machine PP Strapping Band Coating machine Bottle blow molding machine sitemaps
Tel:+86-28-26393091 +86-28-26390935 Fax:+86-28-26639659 +86-28-26393083    Skype Me Skype Me

友情链接:庐山区科技网(http://www.lsqkjw.cn) 冀州古城改造网(http://www.jizhougucheng.com) 四平市生产力促进中心(http://www.spzyqcw.com) 宜君县信访局(http://www.yjxfj.com) 东南置业杂志社(http://www.51hxzy.com) 秀屿地震信息网(http://www.xydzb.com) 北京市宣武少年宫(http://www.bjxwsng.com) 政协委员网(http://www.zxwyw.net) 六合区建筑工程安全质量监督站(http://www.lhzjz.com) 东台文明网(http://www.dtwm.net)