The hot topic before we buy foam machine is to consider the price carefully. Then we decided to buy a high-quality polyurethane foaming machine. Of course, we still need to make an overall comparison. There are a lot of polyurethane foaming machines on the market, the price is different, of course, the quality and performance will be very different. All of us hope that the foam machine equipment purchased is cost-effective, so our preliminary comparison work is inevitable.

At present, there are many types of polyurethane foaming machines on the market. New brands and new names of foaming machines are emerging in endlessly. Many models of foaming machine do not know how to choose, so that if you choose the wrong model carelessly, you will not be satisfied with your use. In order to make it easier for manufacturers to choose their own foaming machine equipment, I will introduce to you the selection methods of polyurethane foaming machine.

1、 We need to know the type of foaming machine

Although the basic principle of foaming machine is to introduce gas into the aqueous solution of foaming agent, different types of foaming machine will introduce gas in different ways. We need to know the type of foaming machine and the air entraining method of foaming machine, which will help us to further understand its technical characteristics and basic performance, so as to make our manufacturers have an overall understanding. After knowing the advantages and disadvantages of each foaming machine, it is easier to choose a foaming machine. Therefore, for our manufacturers, understanding the type of foaming machine is very important.

2、 It is very important to master the basic technical parameters of foaming machine

For producers, not only need to understand the type of foaming machine and its principle, but also need to further understand several important technical parameters of foaming machine, only in this way can we know whether to meet our production requirements.

1. Output:

Output refers to the amount of foam generated. The amount must be slightly higher than the amount of foam needed by about 20%. The amount of bubbles generated should be the basis for ratification, rather than the upper limit.

2. Size of equipment:

This parameter is one of the necessary factors for the overall layout planning of the workshop.

3. What is the installed capacity

The installed capacity is the total power installed. This parameter is of great significance to the adaptability of computing circuit to total power consumption.

4. Bubble diameter range:

Generally, the bubble diameter requirements of specific products should be compared to find a suitable foaming machine.

3、 Carefully understand foaming quality

The foam machine is foam, and we need foam in the production process. Therefore, the quality of the foam is an index to measure the performance of the foaming machine. The main method to judge the foaming quality is to measure from three aspects: the fineness of foam, the uniformity of foam and the exudation of foam.

Is polyurethane foam board sound insulation?

At present, the better external wall thermal insulation material is polyurethane foam board, and it is also widely used as external wall thermal insulation material. In current thermal insulation materials, the thermal conductivity of polyurethane foam board is very low. The obturator rate of polyurethane foam board is over 95%. It is a kind of impermeable material, which has dual functions of heat preservation and waterproof. However, the water absorption of polystyrene board is very high, and the head treatment is not good, it is easy to lead to waterproof failure. Polyurethane foam board is applicable to any shape and structure, especially the level and external curtain wall system.