The dosing issues when using PVC profile production line

PVC profile production line is important production equipment for producing PVC profiles, which are industrial and household PVC products extruded at high temperature by adding various functional additives to PVC resin. In the production of PVC profiles, the raw materials need to be configured, and a reasonable ratio can produce higher quality products. However, in the actual batching operation, there are inevitably some problems.

Here is the list of contents

• What is the process of material preparation?

• Problems to pay attention to in batching and mixing

What is the process of material formulation?

The preparation process of PVC materials mainly includes batching, hot mixing, cold mixing, conveying, and storage. There are small-scale production methods of manual batching and manual transportation and large-scale production methods of automatic batching and automatic transportation. With the continuous expansion of enterprise-scale, the use of manual batching material handling methods can no longer meet the needs of mass production, material handling automation has become a commonly used way. The automatic way of material handling is generally suitable for the professional factory of profile production with production capacity above 5000 tons, which has low labor intensity and good production environment and can avoid human errors, while the enterprises with production capacity below 4000 tons mostly adopt the way of manual batching, transporting and mixing. The automation of material handling refers to the computer-controlled automatic batching system as the core, supplemented by pneumatic conveying, and when combined with hot and cold mixers to form a complete set of PVC batching and mixing production lines. The advantages of this technology are high dosing accuracy, high production efficiency, low pollution, and the ability to meet the needs of high-volume extrusion production.

Dosing is the first process of mixing. The key to dosing is the word "accurate". In the large modern enterprises of plastic profile production, most of the ingredients adopt the computer-controlled multi-component automatic weighing and measuring system. The more widely used is the weighing measurement method, according to different weighing methods, which can be divided into batch accumulation weight, loss-in-weight weight and flow process material continuous weight three. The batch counting method is very harmonious with the mixing process, which requires batch mixing, and is most suitable for PVC mixing, so it is used more in the production of PVC profiles.

Problems to be noted in batch mixing

PVC resin is added to various additives in processing to improve the performance of PVC to meet the needs of processing and product performance. When producing plastic door and window profiles, we generally add heat stabilizers, processing modifiers, impact modifiers, lubricants, light stabilizers, fillers, and colorants. Although the amount of additives added is 0.1% to 10% of the PVC resin, their respective roles are very important and can be said to be indispensable, and changes in the amount added have a great impact on the processing and performance of the final product. Therefore, it is necessary not only to weigh the ingredients accurately but also to mix them evenly during the mixing process to achieve the consistency of the material.

With years of production experience and advanced technology, Zhangjiagang Chenxing Machinery Co., Ltd can provide a high-quality and high-performance profile production line. The PVC profile production line produced by our company has an automatic control panel, which is easy to operate and highly accurate and can achieve strict control of product quality.If you are interested in our products and want to get more detailed information, welcome to contact us, we are looking forward to your visit!