The mold industry should choose the brand of cold water machine it? Shenzhen, of course, East Star Refrigeration ah

The mold industry should pay attention to the selection of industrial cold water machine several problems:

       A mold is a heat exchanger, heat is introduced by molten plastic mold, mold by the continuous introduction of cooling medium -- ice water circulation in only a very small part of the template is pressed into the air and injection molding machine. Plastic molding cycle, sometimes can be accounted for more than 80% of plastic molding cycle, it is necessary to control the cooling time to the minimum. For example, the general need 20 seconds a molding cycle, such as the original cooling tower water to produce industrial chiller water for cooling, it can be shortened to 16 seconds. Although the initial choice is equipped with a cold water machine cost is higher, but it can make production increased by 20% in the long-term production, can make a lot of income. So, how to choose ice water energy?

        If the mold with hot glue Road, but also should be the heat of the energy into the cold amount of calculation, the general hot glue way is to kW as a unit, the unit should be converted into kcal / 1kw=860kcal, H / h. If the factory supply adequate water, low temperature, low cost, then you do not need to use the air filter, it is generally not too realistic, unless the plant can lower water temperature in the lake side; the other is the use of city deep water wells to meet the needs of temperature and flow, but the cost is too often high. This method can be used for the experimental device, but for the plant, it is impractical to do so.

        Mold cooling fluid (water) temperature is generally subject to the processing of materials and products shape changed greatly, such as polystyrene thin beaker, die ice water temperature at 0 DEG C; and in most cases, the mold required ice water in the temperature of 5 DEG C, a full function can provide the cold water of 5 DEG C the above water, low temperature cold water can meet the intelligent temperature below 5 DEG and 0 DEG C requirements.

        The temperature difference between the inlet and outlet of the mould is usually set according to the requirements of the products. In many cases, the temperature difference is the most ideal one, but sometimes it needs the temperature difference between 1-2 and 3-5. The smaller the temperature difference, means that the same heat to bring out the need of ice water flow is greater, and vice versa.