How to select and store the raw materials for plastic milling processing?

Plastic milling is an important plastic recycling method, which can reprocess waste plastics and turn them into reusable raw materials. However, the selection and storage of good raw materials also has a great impact on the quality and efficiency of plastic milling. This article will introduce how to select and store raw materials for plastic milling processing.

First, choose the right raw materials

1. Plastic type selection

When selecting the type of plastic, raw materials that are clean, have no foreign matter inside and are stable should be selected. For different types of plastics, there should be special grinding processing methods and conditions. Commonly used plastic types are PP, PE, ABS, PA, PC and so on.

2. Plastic color selection

When choosing the raw materials of plastic grinding powder, the raw materials with the same color after classification should be selected as far as possible. Because raw materials with different colors are mixed together, it will affect the aesthetics and quality of the later products.

3. Selection of wear resistance of raw materials

When selecting raw materials, materials with good wear resistance should be selected. In the process of grinding, raw materials will be subjected to wear and friction, and raw materials with good wear resistance can improve processing efficiency and grinding quality.

Second, the correct storage method of plastic grinding powder

After selecting the raw materials for plastic milling, how to store them is crucial. The following is the correct storage method of plastic grinding powder.

1. Temperature and humidity conditions

The storage temperature of plastic should be controlled between 15 ° C and 30 ° C, and the humidity should be controlled at about 50% to 60%. Excessive humidity and temperature will affect the quality of raw materials, resulting in unstable grinding processing.

2. Packaging conditions

Raw materials should be stored in sealed packaging bags to remain intact and pollution-free. The bag is made of special materials, such as an ESD bag or a moisture-proof bag.

3. Storage location

Raw materials should be stored away from direct sunlight and high temperatures, and away from fire and flammable materials. Storage areas should be well ventilated and regularly cleaned and sterilized.

Third, precautions

1. Check the quality of raw materials

Before plastic grinding processing, the quality of raw materials should be checked, including whether there is odor, foreign matter, color, impurities, and so on. If found quality does not meet the requirements of raw materials, should be replaced immediately.

2. Storage conditions for semi-finished products

After grinding the semi-finished product, it should be stored in an airtight container and clearly marked with material and batch information. The storage area should be kept dry, room temperature and ventilated, and free from vibration and damage.

3. Maintain the device

When grinding, the equipment should be regularly maintained and maintained. At the same time, the equipment should be kept clean and sanitary to avoid contamination of raw materials.

In short, when selecting and storing raw materials for plastic grinding powder, quality and safety should be considered comprehensively. Only by choosing good quality raw materials and carrying out correct storage and maintenance can we improve the quality and efficiency of plastic grinding processing.