Cooling is a crucial part of the rubber-plastic production process. After high-temperature melting or plasticization of rubber and plastic, it is necessary to quickly reduce the temperature through effective cooling means, so that it can be cured and molded to achieve the expected physical properties and appearance quality.
If the cooling is not proper, it will not only affect the molding effect of the product, but also may lead to product deformation, cracking and other quality problems.
We first understand the production flow chart of the rubber and plastic process, which uses the equipment are injection molding machines, extruders, calenders, vulcanizers, etc., each of which plays no role.
In the production process, injection molding, extrusion, blowing bottles, compression molding, blown film, calendering film process need to use the chiller!
DECENT chiller is widely used in rubber and plastic industry, suitable for injection molding machine, bottle blowing machine, extruder and other thermoforming equipment.
DECENT chiller has the advantages of small size, large cooling capacity, fast cooling speed, stable and accurate temperature control, and can support non-standard customization, etc. It can greatly improve the surface finish of plastic products, reduce the surface texture and internal stress of plastic products, so that the products do not shrink, do not deform, easy to demold plastic products, accelerate the product stereotypes, which greatly improves the production efficiency.
In the rubber and plastic industry, how should the chiller selection? Chiller according to the form of refrigeration can generally be divided into water-cooled and air-cooled, the following is a comparison of the chiller and the selection of the main points in the injection molding industry.
Water-cooled chiller
1. Need auxiliary equipment - cooling tower, water pump to dissipate heat
2. Installation is slightly more complex than air-cooled, covering a wider area.
3. Smoother operation, less cold loss easy to return to the oil, heat transfer tube is not easy to freeze than air-cooled energy efficiency.
4. In the same refrigeration capacity, lower power consumption.
Air-cooled chiller
1. It uses its own installed fan and air exchange to reach heat dissipation without cooling tower.
2. Simple installation, easy to move, small footprint.
3. Because of the fan cooling, it has high requirements for ventilation, humidity, temperature and other surrounding environment.
4. Higher power consumption under the same cooling capacity.
Water-cooled than air-cooled energy efficiency ratio is higher, the same refrigeration capacity of the water unit and air-cooled units, water-cooled units are stable, energy-efficient and have a long service life.
The total cost of air-cooled is less than water-cooled. There is no need to consider the area of the machine room, no need to consider the installation and operation costs of the cooling tower and water pump, and no need for professional maintenance and management. Suitable for water-scarce areas or places with limited machine room area.
In terms of installation, water cooling needs to be included in the cooling tower can be used, air-cooled is mobile, without other assistance, but air-cooled chiller only by fan cooling, there are requirements on the environment: such as ventilation, humidity, the temperature can not be higher than 40 ° C, the air acid and alkali values.
After considering the above factors, the selection of the unit is clear, according to the system of injection molding machine and chiller refrigeration principle, choose the right chiller unit.