Some models adopt a floating heating plate design, which uses springs or hydraulic devices to keep the heating plate in close contact with the mold, reducing contact thermal resistance.
The larger the aspect ratio, the longer the material stays in the screw, the more fully it is heated and sheared, and the plasticizing uniformity is significantly improved.
During positive pressure molding, compressed air is delivered to the mold cavity through a pipe to push the material to fill and solidify.
Food packaging is a core component of the modern food industry. Its functions extend beyond product protection to extend shelf life, enhance the consumer experience, and promote brand marketing.
Precise control of process parameters is key to achieving uniform wall thickness. During positive and negative pressure molding, the timing of switching between positive and negative pressure directly affects material distribution.
With market demands for environmentally friendly, functional, and cost-effective packaging materials, a single material can no longer meet all application scenarios.