The significance of die casting mold temperature as well as the

• Posted by CNC LATHING March 7, 2022 - Filed in Technology - #zinc alloy die casting factory  - 940 views

  Note that temperature is one of the most important process variables in the production of aluminum alloy die casting aluminum-castings, and it should not be overlooked. The accuracy with which die casting mold-casting mold temperature control is performed has a direct impact on the quality of the finished product as well as the efficiency with which the manufacturing process is carried out. The method used to regulate the temperature of the die-casting mold is extremely important in this process because it affects the final product.
  
  1. The importance of die casting company casting mold temperature in the die casting process.
  
  When it comes to the casting production process, die-casting molds are the equipment that is used in the molding process. Temperature field distribution stability established in the mold has a significant impact on the casting quality, production efficiency, and mold service life. It is also directly related to the cost and economic benefits of casting manufacturing, as shown in the graph below. You must keep the temperature field in the mold within the range of process requirements if you want to produce castings with a qualified external appearance and internal quality. Because of the high temperature, defects such as strains and bubbles will form, which will increase the cooling time and decrease production efficiency; defects such as cold isolation, inadequate pouring, and pores will also be produced as a result zinc alloy die casting factory of the high temperature. precision die casting supplier-casting molds are created in a high-temperature, high-pressure environment over a long period of time in order to achieve the desired result. When the mold's unstable temperature field is combined with the mold's long-term periodic thermal expansion and contraction, the likelihood of the mold failing increases, resulting in a mold with a significantly shorter service life and a lower level of production efficiency than before.
  
  Temperature control of die-casting molds according to thermodynamics
  
  

  In the casting process, achieving an ideal thermal balance between the mold and the molten metal is accomplished by having the mold absorb and discharge exactly the same amount of heat, resulting in a dynamic thermal balance between the mold and the molten metal. The application of spot cooling on-site at the site of the accident helps to maintain thermal equilibrium.
  
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  Part 1: During the die-casting process, the -casting structure is subjected to the highest temperatures possible, making it easy for shrinkage cavities, shrinkage porosity, and stress concentrations to form as a result of expansion and contraction during the cooling process. Part 2:
  
  (2) A method of regulating the temperature - the spot cooler -
  
  A collecting and distribution box is included in the spot cooler in order to ensure that there is sufficient pressure to achieve the goal of water conservation.
  
  (3) High-pressure spot cooling is applied to the core of the casting at the hot joint, allowing it to cool faster.
  
  (4) Cold water treatment: Because the cooling pipeline is small, the cold water in the cooling pipeline will experience sudden cooling and heating, among other things, as it travels through it. Traditional water treatment typically consists of softening, which is frequently insufficient to meet the water quality requirements in a manufacturing setting. Blocked passages are encountered on a regular basis, and this causes the organization to suffer a significant loss of manpower as well as material and financial resources. When it comes to water treatment, reverse osmosis (RO) devices are commonly used to convert cold water into pure die casting China water through the use of the process of reverse osmosis.
  
  4. Thermodynamic equilibrium is achieved.
  
  To prevent the mold from becoming colder or hotter than necessary and to reduce shrinkage cavities, shrinkage porosity, and shrinkage caused by uneven mold temperature, it is critical that the heat absorbed by the mold and the heat emitted by the mold be consistent when die casting. Pores in the casting are an example of a defect in the casting. Improvements in the appearance and internal quality of castings, along with increased mold life and production efficiency, are all desirable. Temperature equilibrium is achieved through a process that involves cooling a mold when the temperature is high and heating a mold when the temperature is low in order to reach equilibrium.
  
  -casting mold temperature control machine (2) Die-casting mold temperature control machine
  
  Mold temperature machines are divided into two categories: water-cooled machines and oil-cooled machines. The control temperature is approximately 160 degrees Celsius, and the water type is typically selected for those who have stricter environmental requirements, whereas the oil type is typically selected for those who require temperatures greater than 160 degrees Celsius. This is the primary function of the mold temperature machine, which is insufficiently accomplished by the temperature adjustment and control procedures that are used in the die casting services casting manufacturing process.
  
  

  Mold cooling unit is the third type of control method to be discussed.
  
  In order to maintain the thermal balance of the mold cavity temperature, it is necessary to use the mold cooling unit in conjunction with the mold's cooling circulating water to cool the mold's high-temperature part.
  
  This invention describes a method for monitoring the temperature of a die-casting mold.
  
  (1) A wrist strap with a thermal imaging device attached to it
  
  Thermal imaging tests are carried out at the beginning and end of each shift, and mold adjustments are made in accordance with the temperature conditions.
  
  Temperature monitoring systems based on thermocouples or thermal imagers are also available.
  
  A real-time monitoring system for mold temperature distribution should be installed in the mold (or thermal imagers placed above the mold and on its left and right sides), and the mold temperature should be adjusted in response to the data collected from the monitoring system. The monitoring of temperature is carried out.
  
  6. The temperature control island is a comprehensive solution for controlling the temperature of die casting molds in one location.
  
  Customers have requested that Nanjing Oneng Machinery develop a temperature control island as part of a comprehensive solution for die-casting molds, which they can purchase. Temperature control equipment, such as mold temperature machines, high pressure mold coolers, fine core point coolers, water supply constant temperature intelligent control, and so on, are used to provide solutions for molds from the point to the line to the surface of the mold. The temperature control island can be used to create a completely closed loop system by connecting the water inlet to the mold return water and vice versa.