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News Center

Zhejiang Guangming Plastics Machinery Co., Ltd.

01

2018-08

Common materials for screw

At present, China's commonly used screw materials are 45 steel, 40Cr, ammoniated steel, 38CrMOAl, high temperature alloy and so on. 1) No. 45 steel is cheap and has good processing performance, but its wear resistance and corrosion resistance are poor. Heat treatment: quenching and tempering HB220-270, high frequency quenching HRC45--48. 2) The performance of 40Cr is better than that of 45 steel, but it is often plated with a layer of chromium to improve its corrosion resistance and wear resistance. However, the requirements for the chromium plating layer are high, the coating is too thin and easy to wear, too thick is easy to peel off, but accelerated corrosion after peeling, has been less application. Heat treatment: quenching and tempering HB220-27

2018-08-01

01

2018-08

What are the requirements for the manufacturing quality of the screw

What are the requirements for the manufacturing quality of the screw? ① The screw of the extruder should be made of alloy steel with small thermal deformation, wear resistance and corrosion resistance. Commonly used materials are 38CrMoAlA alloy steel or 40Cr steel, repair parts can also be made of 45 steel

2018-08-01

31

2018-07

Zhoushan screw wear solution

Screw is mostly used in plastic molding equipment, such as plastic profile extruders, injection molding machines, etc. Screw and barrel are the core components of plastic molding equipment, the part of heating extrusion plasticization, and the core of plastic machinery. The protection of the screw became the primary problem.

2018-07-31

31

2018-07

Factors Affecting the Quality of Screw Plasticization

The main factors of rod plasticizing quality are: aspect ratio, compression ratio, back pressure, screw speed, barrel heating temperature, etc. 1. Length-diameter ratio: the ratio of the effective working length of the screw to the diameter of the screw. A, large aspect ratio is easy to eat evenly;

2018-07-31

26

2018-04

Ready to be sold abroad

According to customer requirements, complete the order task in advance and wait for loading and sending to various countries.

2018-04-26

26

2018-04

The company always adhere to the customer as the center, strictly control the quality of the production process

Looking to the future, Guangyou will continue to make progress, learn from excellent technical experience, customer-oriented, efficient, innovative, growth, and strive to become a benchmark in the industry, and strive to become an excellent supplier with extensive influence and good reputation in the global barrel screw field.

2018-04-26

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