How To Choose Chiller In The Injection Industry?
October 22, 2018
Industrial chillers are very common in the industry. Most of the injection molding machines are equipped with chillers for cooling. Today, Jinan Amrta Air Conditioning takes you through the selection of injection chillers.
Let us first understand the working principle of the chiller of the injection molding machine: after the plastic granule is melted into the mold after being melted by the injection molding machine, the plastic granule is ejected to mold the plastic workpiece, and the chilled water system of the chiller is required to cool the mold in the continuous production process. In order to shorten the plastic setting time and improve the dimensional accuracy, molding quality and surface quality of the workpiece, this is the working principle of the chiller of the injection molding machine. The chiller of the injection molding machine generally uses a water-cooled box chiller. If the chiller applied to plastic processing machinery mold cooling can greatly enhance the surface finish of plastic products, to reduce internal stress marks and surface texture of plastic products, so that product does not shrink, without distortion, to facilitate stripping of plastic products, accelerate product shape, Thereby greatly improving the production efficiency of plastic molding machines; chillers are used in CNC machine tools, coordinate boring machines, grinding machines, machining centers, combination machine tools, and various types of precision machine tool spindle lubrication and hydraulic system transmission medium cooling, capable of accurately controlling oil temperature, effectively reduce the thermal deformation of the machine tool and improve the machining accuracy of the machine tool.
After understanding the working principle of the above injection molding machine chiller, it is necessary to start to choose the water chiller. Many people will ask: I have 3 injection molding machines, I need a chiller to bring these three, then how big is the chiller? First of all, the refrigeration capacity of the chiller is related to the injection volume of the injection molding machine. The larger the injection volume, the greater the required refrigeration capacity. If these three injection molding machines, each of which is 200 tons, then we have to calculate: the number of injection molding machines 3 * each tonnage 200 / fixed number 80 = 7.5hp, in order to ensure the cooling effect, we recommend the use of 8hp chiller, At the same time, these three injection molding machines are driven. Should you understand this?
Let's take a look at the vertical injection molding machine / horizontal injection molding machine. Under normal ambient temperature conditions, the cooling water condensation temperature of the water cooled box chiller is below 35 degrees, and the air cooling box chiller condensing temperature is below 43 degrees. Match.
1. When the clamping force of the injection molding machine is nominally “tonnage”
1hp water cooled box chiller can be equipped with 80 tons of clamping force injection molding machine temperature control at 5-10 degrees;
1hp water cooled box chiller can be equipped with 100 tons of clamping force injection molding machine temperature control at 10-15 degrees;
1hp water cooled box chiller can be equipped with 120 tons of clamping force injection molding machine temperature control at 15-20 degrees;
The matching of the air cooled box chiller is 0.8 times that of the water cooled box chiller, then:
1HP air cooled chiller can be equipped with 64 tons of clamping force injection molding machine temperature control at 5-10 degrees.
1hp air cooled box chiller can be equipped with 80 tons of clamping force injection molding machine temperature control at 10-15 degrees;
1hp water cooled box chiller can be equipped with 96 tons of clamping force injection molding machine temperature control at 15-20 degrees;
Second, when the clamping force of the injection molding machine is rated as "Anshi"
1HP water cooled chiller can be equipped with a single injection volume of 10 OZ injection molding machine temperature control at 5-10 degrees.
Injection volume 1 oz (OZ) = 28.3 g
