Mold Temperature Controller
Die casting machine mold temperature controller is a key equipment used to control the mold temperature in the die casting industry.
And its main role is to ensure that the mold maintains a constant temperature during the die casting process.
So as to improve the quality and production efficiency of the casting.
The working principle of the mold temperature machine
The working principle of the die casting machine mold temperature machine is mainly based on the basic principle of heat exchange and temperature control.
And its core purpose is to ensure the quality and production efficiency of die castings by precisely controlling the temperature of the mold.
The following is the specific working principle of the mold temperature machine:
Mold heating system
The mold temperature machine usually uses an electric heater or gas heater as a heat source to transfer heat energy to the mold through a heating tube or combustion chamber.
The temperature of the heater can be adjusted by the controller to achieve the desired mold temperature.
Heat transfer medium
The mold temperature machine uses heat transfer oil or water as the heat transfer medium and operates in a closed-circuit circulation system.
The heat transfer oil circulates under the action of a high-temperature magnetic pump, transferring heat from the heater to the mold
And then returning to the heater to continue heating, forming a circular process.
Temperature control system
The mold temperature machine is equipped with temperature sensors and control systems.
Such as PID controllers, which are used to monitor and adjust the temperature of the mold in real time.
When the mold temperature is lower than the set value, the heater starts.
When the temperature is higher than the set value, the cooling solenoid valve is opened.
So that the cooling water enters the plate changer
And the heat is indirectly exchanged with the high-temperature heat transfer fluid, so as to reduce the temperature.
Safety Precautions
In order to ensure the safe operation of the mold temperature machine, safety measures such as liquid level, pressure and over-temperature protection are usually set.
The level controller monitors the oil level of the tank to prevent insufficient or excess oil.
The pressure controller prevents the heater from drying or clogging the pipes.
The over-temperature controller directly controls the mains power supply in the event of a heating contactor failure, preventing the danger of overheating.
Dual-circuit design
Some mold temperature machines use a dual-circuit design to control the temperature of the moving mold and the fixed mold separately.
This design allows for more precise control of the temperature of different parts
Improving the quality of die castings and the service life of molds.
Warm-up and cool-down functions
The mold temperature machine not only preheats the mold before production to reduce thermal stress and prolong the mold life.
But also keeps the mold temperature constant during the production process to ensure the stability of the size and density of the die casting.
In addition, the mold temperature machine can also maintain the mold temperature between productions.
Reducing energy consumption and speeding up the production schedule.
Intelligent control
Modern mold temperature machines are usually equipped with PLC intelligent operating system.
Which can display the technical parameters, temperature curve and operating status of the equipment in real time.
And support remote control and fault information display functions.
These intelligent features make the operation of the mold temperature machine simple and convenient.
And improve the service life and production efficiency of the equipment.
Mold temperature machine application
The specific applications and effects of mold temperature controllers in different alloy types are as follows:
Aluminum alloy
Temperature range: The temperature of aluminum alloy die casting mold is usually controlled between 180-270°C.
Effect: By accurately controlling the mold temperature, it can effectively reduce problems such as cold lines.
Surface defects and casting deformation, and improve production efficiency and product quality.
In addition, the method of heating the heat transfer oil by the mold temperature machine can effectively extend the life of the mold.
Avoid local overheating and thermal shock, and improve the temperature control accuracy.
Magnesium alloy
Temperature range: The temperature of magnesium alloy die casting molds usually between 180-300°C.
Results: Precise control of the mold temperature is essential to guarantee the surface and intrinsic quality of magnesium alloy die castings.
The use of high-temperature heat conduction oil circulation system can solve the problem of preheating and cooling of the mold at the same time, buffer the thermal shock of the die-casting mold.
Improve the service life of the die-casting mold.
Improve the internal and surface quality of magnesium alloy die-castings, and reduce the scrap rate.
Zinc alloy
Temperature range: The temperature of zinc alloy die casting molds usually between 100-200°C.
Effect: Proper mold surface temperature distribution helps to improve production efficiency and product quality.
Improper mold temperature will lead to unstable casting size, resulting in thermal pressure, mold sticking, surface depression, shrinkage porosity and hot bubbles and other defects, affecting the production cycle and mold life.
Haichen’s mold temperature machine
Haichen’s mold temperature machine can achieve precise control of the mold temperature
Ensuring that the flow of raw materials during processing is stable, thereby improving production efficiency.
It can realize functions such as intelligence, remote control, data transmission and intelligent analysis.
This intelligent upgrade enables the mold temperature machine to automatically adjust the heating temperature and time according to the preset temperature control formula, realize multi-stage temperature control, and greatly improve the production efficiency and product quality stability.
