Thin Wall Mould

In an increasingly competitive market environment , in order to do injection thin wall moulding and plastic packaging economically ,products manufacturer was forced to focus on the cost control of products . in order to save raw material cost, the wall thickness of plastic products have become more and more thinner , which imposes high requirement and stricter manufacturing environment on injection molding process. Customer-specific product applications for injection molding system has become the basis for economic production . Thin-wall moulding process using a wrapper application are the following Used for daily necessities , drinking cups, plastic cutlery, ice cream cups and other packaging , boxes , barrels

 Thin-wall moulding packaging products is generally hollow , open at one end , different shapes , for one-time use or reuse . These products typically between wall thickness 0.3MM to 1.5MM , and usually has a long flow length ratio up to 400:1 Economical use to a minimum. Therefore, as the first consideration is for the product designers to meet the requirements of the product as much as possible, while reducing the wall thickness .

Economic production of thin-walled packaging containers depending on injection molding cycle time as short as possible , and the use of materials to a minimum , so as the first consideration is the product designers to meet the requirements of the product as possible, while reducing the wall thickness. Typical materials : injection molding packaging containers of plastic materials, the main plastics are PP, PE and PS. modified or special composite materials ( such as HIPS, M-PP) is also often used , engineering plastics are rarely used, besides a few individule cases.

Generally thin-walled plastic containers require materials with high fluidity , sufficient strength , hardness and relatively simple molecular weight distribution. but some high-performance plastic materials melt index (MFI) is usually 40-50G/10min (230 ℃ / 2.16kg) , in some special cases can reach 150g/10min. Therefore the composition of materials must be optimized in order to fit high-performance injection molding, Typically, the resin added with stabilizers , nucleating agents, lubricants and anti-static ingredients. The melt index of these materials must be in a small range . When used in food packaging , the additional factors, such as protective properties and toxicity must be considered.

To produce high-quality  thin-wall moulding  products , we must completely optimize the materials,  thin-wall mould , injection molding machines and injection molding process. Therefore, you should try to avoid product design and mold design and manufacturing defects at the beginning of every project, the mold must meet the following requirements: 1: High stability and minimizes deflection 2: Surface Stripping make convenient for local plating 3: hydraulic drive, gas-assisted mold 4 : Effective  thin-wall mould cooling systems, such as high flow, low pressure loss of temperature control 5: guiding and centering mechanism to maintain minimal 6 : the difference minimization of Different parts temperature .

Medium-sized and large- size products is usually done by high speed ejection system i . The thin-wall mould product take-out device and a modern robot can reduce the cycle time to as little as 0.4S. 
 
Thin Wall Mould Products