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Why China has to ration electricity and how that could affect TPU price
Oct 15 , 2021
Recently, the National Development and Reform Commission announced that the energy consumption intensity of nine provinces and regions increased in the first half of the year instead of decrease! In addition, the reduction rate of energy intensity in 10 provinces did not meet the schedule requirements, and the national energy conservation situation is very severe. As to balance electricity supplie...
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Type and performance test of paint protective film
Sep 24 , 2021
Paint protective film is commonly known as invisible car jacket. Paint protective film is transparent and invisible on the car. The protective film covering the surface of the car paint and is to protect the original paint. 一.Don’t new painting better than original paint protection? The difference between original paint and spray paint 1.The structure is different: the original paint is composed o...
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The processing technic of TPU tube and TPU cushion extrusion procession
Sep 03 , 2021
1. The Pre-Processing of TPU granules If the humidity of the TPU material is too high, it will cause small bubbles or silver streaks in the TPU products and the surface of the TPU extrusion products is unsmooth and brightness. We recommend that the humidity of the pellet material should be under 005% to ensure trouble-free surface molding products. The TPU granules will absorbed the moisture from ...
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How to deal with the slippage of the screw barrel in TPU injection molding process
Aug 27 , 2021
There are many reasons that cause the slippage of the screw barrel. For example, the abrasion of the screw and barrel. The compression ratio of the injection molding machine screw, if the feeding section is too short and the compression ratio is too small will led to the conveying capacity decrease and the screw slip. The one-way valve (check valve) malfunction can also lead the screw slip. In add...
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Sticking problems in thermoplastic elastomer TPE TPR TPU TPV materials injection molding
Aug 20 , 2021
Sticking is a common problem in the injection molding process of thermoplastic elastomer TPE/TPR/TPU/TPV. Sticking problem is quite common when the hardness is relatively low, such as TPE/TPR/TPU is lower than 60A and TPV is lower than 40A. There are two main parts that occur mold sticking problem. 1. Thermoplastic elastomer TPE/TPR/TPU/TPV sticking in the main runnerBecause the pressure in the ma...
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Causes and treatment methods of warpage in Plastic Injection Molding
Aug 13 , 2021
Warpage is the injection product defects that parts deviates from the shape accuracy requirements of the part. It is one of the common and difficult solved defects in injection mold design and injection production.Causes of warpageWarpage is caused by uneven stress and shrinkage during the products injection process. Die Adhesion, insufficient cooling, inadequate shape and strength of the part, po...
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Erke a brand supported by polymer materials became popular overnight
Aug 06 , 2021
Erke donated 50 million yuan in materials to Henan's rainstorm-stricken areas under the circumstances of its own poor management! Countless netizens moved and support this conscientious enterprise with various "wild consumption"As a well-known sports brand in China, Erke leaves a low-key impression to people. Erke has been working hard on running shoes, sports shoes and other series ...
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What causes cracking in TPU plastic injection molded parts and how to fix it
Jul 30 , 2021
Cracks are a fatal defect of TPU products, it usually happens to be hairy cracks on the surface of the product. It easily happened in the sharp edges and corners. It is harmful for products usage when the invisible cracks occur in the injection parts,The main reasons that cause cracks during production are as follows: 1 Difficult to demold 2 Overfilling 3 Mold temperature is too low 4 Defects in p...
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What is bio-based TPU
Jul 23 , 2021
Bio-based materials refer to biomass materials made from renewable natural resources (such as corn, cassava, wheat, potato, cellulose, palm oil, etc.) bio-based compounds, bioplastics, wood-plastic composite materials which made by biological, chemical, and physical methods are environmentally friendly, renewable and biodegradable. Bio-based material is widely used to produce shoes, bags, clothing...
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Classification and application of TPU over-moulding
Jul 07 , 2021
TPU over-moulding mainly divided into bond with metal and bond with plastic.TPU bond with metal is to encapsulate a layer of soft plastic on the metal surface. It make the surface of the metal features with anti-slip, shock-absorbing, anti-corrosion. There are generally four over-moulding methods in TPU overmoulding metal.1. Block over-mouldingTPU block over-moulding has defect of poor bonding and...