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滚塑 Roll-plastic
滚塑一种热塑性塑料中空成型方法。即先将粉状或糊状或单体物料注入模内,通过对模具的加热和双轴滚动旋转,使物料借自身重力作用均匀地布满模具内腔并且熔融.待冷却后脱模而得中空制品。滚塑的转速不高。产品几乎无内应力,不易发生变形,凹陷等缺点。
Roll-plastic a thermoplastic plastic hollow molding method. The first will powder or paste or monomer material injection mould, through to the mold of heating and dual axle rolling rotation.make the material by its own gravity evenly in the mould cavity and full of melting, wait for after cooling and stripping hollow products. Rol-plastic speed is not high.the product almost no stress, not easy the distortion。sag shortcomings.
吹塑(blow moulding)
吹塑(blow moulding)也称中空吹塑,一种发展迅速的塑料加工方法。热塑性树脂经挤出或注射成型得到的管状塑料型坯,趁热(或加热到软化状态),置于对开模中,闭模后立即在型坯内通入压缩空气,使塑料型坯吹胀而紧贴在模具内壁上,经冷却脱模,即得到各 种中空制品。
Blow molding.blow moulding) also called hollow blow molding, a rapid development of the plastic processing method. Thermoplastic resin of the extrusion and injection molding get tubular billet plastic type, serve hot (or heated to soften the state), off in the mould.immediately after the dosed modules in type ventilation with compressed air in the billets, make plastic type billet huff and dung to die on the wall, the cooling patterns, namely get all sorts of hollow products.
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