News Center

News Center

Zhejiang Guangming Plastics Machinery Co., Ltd.

08

2018-08

Blown film machine screw widely used, the advantages of these

The film blowing machine unit is suitable for blowing plastic films such as low density polyethylene (LDPE), high density polyethylene (HDPE) and linear low density (LLDPE). It is widely used in the internal and external packaging of civil and industrial products such as fruits, food, clothing, textiles, strain cultivation, daily necessities, etc. The advantages of its screw are as follows: 1. The screw of the film blowing machine adopts the most advanced alloy spraying technology, and has higher hardness, better corrosion resistance and long service life, it is 2~3 times the life of the nitriding screw; 2. The screw has a large length-diameter ratio, strong plasticizing ability, uniform temperature distribution, automatic temperature control, and the blown film is bright and uniform.

2018-08-08

06

2018-08

Use conditions and methods of barrel screw

The method of resistance heating is widely used for simple heating, and thermocouple is used to realize segmented temperature control and side inspection. Resistance heating is to use resistance to generate heat to heat the barrel, and then transfer the heat to the plastic in the barrel.

2018-08-06

06

2018-08

How to disassemble the screw and how to repair it

1. The raw material plasticizing temperature is low. 2. The raw material is mixed with metal foreign matter or impurities in the raw material. 3. Screw idle running time is too long.

2018-08-06

06

2018-08

Design requirements for barrel screw of injection molding machine

Injection molding machine barrel screw design principle: The main part of the pin screw is a common screw, and the pin can be arranged in the melting section or the drop groove of the metering section of the screw or the smooth cylindrical surface without the groove at the end of the metering section. The pins are arranged in a certain arrangement, with varying degrees of density and quantity. The cylindrical pin is formed by fitting the pin into the hole of the screw; the square or diamond pin is formed by milling the pin directly on the screw.

2018-08-06

01

2018-08

Innovative Technology Trends in Twin Screw Market

High speed, high efficiency and energy saving have been the main theme of continuous improvement of international plastic machinery in recent years. High speed and high output allow investors to get high returns with low input. However, the high speed of the screw brings a series of problems to be solved: for example, the short residence time of the material in the screw is easy to cause uneven mixing and plasticization of the material; Over-high shear may cause rapid heating and thermal decomposition of the material; Extrusion stability problems may occur; High-performance auxiliary equipment and precision control system are required to match it. Wear of screw and barrel and design of reduction transmission box, etc. Therefore, to provide solutions to the problems that may be brought about by high speed, it is

2018-08-01

31

2018-07

How to repair and strengthen the screw

How to repair and strengthen The repair and strengthening of the screw is as follows:

2018-07-31

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