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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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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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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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Welcome to visit our booth in Wenzhou Int'l Shoe Material and Shoe Machinery Fair
Sep 10 , 2021
KUNSUN POLYMER MATERIAL（FUJIAN）CO., LTD. Will attend in The China (Wenzhou) Int'l Leather, Shoe Material & Shoe Machinery Fair on 27-29 August, 2021 in Wenzhou International Convention and Exhibition Center. Our Both is located in 2D10-2D14 in hall 2. Welcome to visit our booth.The China (Wenzhou) Int'l Leather, Shoe Material & Shoe Machinery Fair (LEATHER & SHOE-TECH for short...
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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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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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Classification and characteristics of conveyor belts
Oct 29 , 2021
It’s common for belts to have three layers: a top cover, a carcass, and a bottom cover. Conveyor belt can be generally divided into rubber belt and Lightweight belt, according to the different material of the top cover layer. Top cover layer material of rubber belt is various natural rubbers or synthetic rubbers. Top cover layer material of Lightweight belt is various polymer materials, such as PV...
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TPU a well adapted material for the calendering of conveyor belts
Nov 05 , 2021
Thermoplastic polyurethane (TPU) bridging the gap between rubber and plastics, this elastomer is particularly versatile. Its toughness and safer for health and our environment properties make it a well adapted material for the the coating of conveyor belts. Thermoplastic polyurethane (TPU) is widely used in coating conveyor belts as it offers: High flexibility even at low temperatures (down to -30...
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Causes and solutions of fish eye in TPU extrusion
Nov 12 , 2021
TPU film is formed by extrusion processing of TPU particles, mainly including blow molding, casting, calendering and extrusion coating. blown TPU film can be used for shoe materials, waterproof and transparent clothing fabrics, medical and defense supplies, weapon packaging, tents, sports and leisure equipment, sanitary napkins, toys, and civilian daily necessities packaging. It is the most widely...
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