The full name of Dongguan water chiller is ice water recycling machine, also known as refrigerator, small water chiller, industrial water chiller, refrigeration unit, low-temperature water chiller, laser water chiller, Dongguan air-cooled ice water chiller, water cooled water chiller, air cooled water chiller, and other names. Due to the use of different industries, the names vary.
Dongguan water chillers are closely related to the use of the mold industry and are highly valued in terms of quality in the mold industry. The external surface finish of the mold must reach Level 7, such as the surface produced by cold extrusion or machining, with a metallic luster. The tolerances and finishes indicated on the drawings all affect product molding, so during processing, appropriate chillers should be selected for cooling based on different accuracy requirements.
A mold is a heat exchanger, where heat is transferred from melted plastic into the mold, and then into the constantly circulating cooling medium - ice water. Only a small portion enters the air and the molding plate of the injection molding machine. It is well known that a significant portion of the plastic molding cycle is used for cooling, sometimes accounting for more than 80% of the plastic molding cycle. Therefore, it is absolutely necessary to minimize the cooling time.
Treatment of water quality in mold cooling chillers
The softening of water is also a problem that cannot be ignored during the use of Dongguan water chillers in the mold industry. It is also necessary to continuously observe the pH value of water. The optimal pH value should be equal to 7, and a pH value greater than 7 will cause terrible corrosion phenomena. If no measures are taken, scaling will occur in the evaporator and mold, which will act as heat insulation. In severe cases, the energy conversion effect will be reduced by 30%. This clearly requires consideration of softening of hard water. The most effective method is to configure an electronic hard water softener in the system, which is designed and manufactured based on the principle of ion exchange. Depending on the flow rate, softeners of different specifications can be configured and directly connected to the circulating water pipeline. Generally, the cost of configuring a water treatment softener is not too high, and a certain proportion of scale remover can also be regularly added to the circulating system.