Plastic granule test sieve

Thursday February-27 2025 11:59:26

Plastic granule test sieve is a device specially used for screening and grading plastic granules. It is mainly used for particle size analysis of plastic granules and is widely used in plastic manufacturing, recycling and quality control. Plastic particles of different sizes are separated by vibration and other means to achieve the purpose of controlling product quality. In the plastics industry, particle size analysis is a key test because the size distribution of plastic granules directly affects the performance and quality of the final plastic products.

Video of the plastic granule test sieve

What is the function of the plastic granule test sieve

1、Particle size analysis: Through screening, the particle size distribution of plastic particles can be accurately determined to provide data support for the optimization of production processes.

2、Impurity removal: In plastic raw materials, there are often some impurities, such as metal chips, fibers, etc. Through screening, these impurities can be effectively removed to ensure the purity of plastic products.

3、Grading: According to different particle size requirements, plastic particles are graded to meet the needs of different applications.

4、Quality control: Through screening analysis, the quality of plastic particles can be controlled to ensure the consistency of the product.

How does the plastic granule test sieve work?

A vibration motor or ultrasonic device generates an exciting force, which causes the screen to vibrate horizontally or in three dimensions. Plastic particles jump and pass through the screen under the action of vibration. Particles smaller than the screen hole size pass through the screen, and particles larger than the screen hole size remain on the screen. Particles of different particle sizes are collected separately for further analysis or processing.

What is a test sieve made of?

Screen frame: usually made of metal or plastic, it is the main frame part of the test sieve, used to support and fix the screen.

Screen: The screen is the most critical part of the test sieve, used to screen particles. The screen is usually made of metal wire, stainless steel wire, synthetic fiber or other materials, with different aperture sizes, and different specifications of screens are selected according to needs.

Vibration mechanism: used to apply vibration force to the test sieve to help particles to be effectively screened on the screen.

Base: The bottom structure that supports the test sieve, usually made of metal or plastic, provides stable support.

Other parts: Depending on the specific design, the test sieve may also include other parts such as adjustment devices, protective covers, and vibration motors.

What are the applications of Plastic granule test sieve?

1、Powder metallurgy: In the powder metallurgy process, metal powders are screened to obtain the desired particle size distribution.

2、Injection molding industry: Controlling the particle size of plastic particles through screening can improve the surface finish, strength and dimensional stability of the product.

3、Extrusion industry: For extruded products such as pipes and profiles, the particle size of the raw materials can be controlled by screening to improve the dimensional accuracy and surface quality of the products.

4、Blow molding industry: For blow-molded films, bottles, etc., the particle size of the raw materials can be controlled by screening to improve the transparency, strength and gloss of the products.