A、B两种组份原液，经精确配比和高速搅拌，由两台高精度计量泵，把A、B两组分料液各自输送到搅拌头。经过高速强烈搅拌，使之料液均匀而喷出，形成所需产品。从动力方面分类可分为：高速叶轮型、高压空气型、鼓风中低压型一台完整的聚氨酯发泡机由以下几个系统组成：料流系统、计量系统、气路系统、加热系统、清洗系统、混合装置
注：生产聚氨酯泡沫的高、低压发泡机和喷涂机、生产聚氨酯弹性体材料的浇注机、用于生产聚氨酯填充材料的灌注机、用于鞋材的成型机以及配套的生产线等。产品广泛应用于冰箱、冰柜、汽车、制鞋和聚氨酯橡胶等行业。
温度对发泡机产量与泡沫质量有很大影响。在30℃以下，水温越高，泡沫密度越小，产量越高。但当水温超过30℃，由于泡沫密度过小，泡壁过薄，容易消泡，所以产量反而降低。因此发泡剂的水溶液温度控制在20℃～30℃发泡效果好。各产品要求不同，汽车内饰温度80度左右，自行车车座海绵60度左右，同时也与外环境的温度、湿度有关。
Polyurethane foaming machine is a special equipment for polyurethane foam injection foaming. As long as the performance indicators of the polyurethane component raw materials (isocyanate component and polyether polyol component) meet the formula requirements. The equipment can produce uniform and qualified foam products. It is based on polyether polyols and polyisocyanates in the presence of foaming agents, catalysts, emulsifiers and other chemical additives, through chemical reaction foaming to produce foam plastic. Polyurethane foaming machines can be used for automotive interiors, insulation wall spraying, insulation pipeline manufacturing, and the processing of sponge for bicycle and motorcycle seats.
essential information
Chinese name: Polyurethane foaming machine
Weight: 100kg
Foam volume: 20 m3 per hour
Floor area: 0.5m3
purpose
Special equipment for polyurethane foam injection and foaming. As long as the performance indicators of the polyurethane component raw materials (isocyanate component and polyether polyol component) meet the formula requirements. Uniform and qualified foam can be produced through this equipment
Products. It is based on polyether polyols and polyisocyanates in the presence of foaming agents, catalysts, emulsifiers and other chemical additives, through chemical reaction foaming to produce foam plastic.
Polyurethane foaming machines can be used for automotive interiors, insulation wall spraying, insulation pipeline manufacturing, and the processing of sponge for bicycle and motorcycle seats.
Characteristics and performance
1. Measurement accuracy: Adopting a low-speed and high-precision metering pump, when the material temperature, pressure, and viscosity fluctuate, the mixing ratio remains unchanged to achieve the highest quality rate;
2. The casting head has advanced structure, reliable performance, convenient operation and simple maintenance, and can be used for front and back, left and right, up and down three-dimensional movement;
3. Computer controlled pouring volume and automatic cleaning.
Product performance
This machine is controlled by a computer controller. The computer controller utilizes today's advanced MCU unit machine embedding technology, with timely and accurate performance,
Easy to operate, easy to maintain, alarm relay indicating completion of previous injection and preparation for next injection.
Foaming principle
A. Two components of raw liquid A and B are accurately proportioned and stirred at high speed. Two high-precision metering pumps are used to transport each component of raw liquid A and B to the mixing head. After high-speed strong stirring, the material liquid is evenly sprayed to form the required product. From the perspective of power, it can be classified into: high-speed impeller type, high-pressure air type, and blower medium and low pressure type. A complete polyurethane foaming machine consists of the following systems: material flow system, metering system, air path system, heating system, cleaning system, and mixing device
Note: High and low pressure foaming machines and spraying machines for the production of polyurethane foam, pouring machines for the production of polyurethane elastomer materials, pouring machines for the production of polyurethane filling materials, molding machines for shoe materials and supporting production lines. The products are widely used in industries such as refrigerators, freezers, automobiles, shoe making, and polyurethane rubber.
Characteristics of foaming machine
1. High foaming capacity, up to 20 m3 per hour
2. Small size, with an area of only 0.5m3
3. Lightweight, with a total weight of less than 100kg; It can be easily moved or hoisted to the floor for construction.
4. Convenient control, with just one press of the button to produce bubbles, without the need for complex adjustments. It takes 10 minutes to learn how to control and operate, making it very convenient to use.
5. The foam is fine and even, and the foam is like a cloud.
6. Good adaptability to foaming agent viscosity. General foaming machines are only suitable for medium to low viscosity foaming agents, while magnesium Jiatu foaming machines are also very suitable for high viscosity foaming agents, with excellent foaming performance.
Precautions for use of foaming machine
Temperature has great influence on the output of foaming machine and the quality of foam. Below 30 ℃, the higher the water temperature, the smaller the foam density and the higher the output. However, when the water temperature exceeds 30 ℃, because the foam density is too small and the foam wall is too thin, it is easy to defoamer, so the output will decrease. Therefore, controlling the temperature of the aqueous solution of the foaming agent between 20 ℃ and 30 ℃ has a good foaming effect. The requirements for each product vary, with car interior temperatures around 80 degrees Celsius and bicycle seat sponges around 60 degrees Celsius, which are also related to the temperature and humidity of the external environment.
