Mold temperature machines are commonly used in die casting and injection molding processes. Taking die casting as an example, uneven or improper mold temperatures can significantly lead to unstable casting dimensions. During production, this may cause casting deformation upon ejection, resulting in defects such as thermal stress, sticking, surface indentation, shrinkage holes, and thermal blisters.
The main function of a mold temperature control machine is heating, maintaining constant temperature, and temperature control. Initially, it was used for injection molding machine molds. Later, with the development of the industry, mold temperature control machines have been applied to other production industries, such as reactors, roller mills for calendering machines, laminators, polishing machines, and more. You can see the presence of mold temperature control machines in these industrial equipment. A mold temperature control machine is a temperature control system, which can also be referred to as a module, a temperature control module. Any industrial equipment that requires temperature control can utilize this module. Currently, the high temperature of mold temperature control machines can reach up to 350°C.
Temperature Controller Configuration and Usage:
The configuration of the mold temperature machine should be determined based on the material being processed, the weight of the mold, the required preheating time, and the production rate in kg/h. When using thermal oil, operators must adhere to the following safety regulations: do not place the mold temperature machine near a heat source (furnace); use tapered, leak-proof, and temperature-resistant hoses or pipes for connections; regularly check for leaks and ensure the proper function of the temperature control circuit (mold temperature machine, connectors, and mold); regularly replace the thermal oil; opt for artificial synthetic oil, which has good thermal stability and a low tendency to coking. The choice of an appropriate thermal fluid is crucial in the operation of the mold temperature machine. Water as a thermal fluid is economical, clean, and easy to use, but it has drawbacks: it has a low boiling point; it may corrode and scale based on its composition, leading to pressure loss and reduced heat exchange efficiency between the mold and the fluid. When using water as a thermal fluid, consider the following precautions: pre-treat the temperature control circuit with a corrosion inhibitor; use a filter before the water inlet; regularly clean the mold temperature machine and mold with rust removal agents. Thermal oil has no such drawbacks. It has a high boiling point and can be used at temperatures above 300℃ and even higher, but its heat transfer coefficient is only one-third that of water, so mold temperature machines used in various industries should be configured according to the technical requirements of the products.
Installation and usage require some minor details to be noted. For workshops installing mold temperature control machines, it's necessary to reserve adequate space height in the upper area and top up oil without affecting heating. If necessary, allocate space for installation, maintenance, and equipment care within the workshop. When purchasing mold temperature control heating equipment, it must be considered from a long-term macro perspective, focusing on maintainability, replaceability, and expandability.
