Die casting requires three essential components: die casting material, a die casting machine, and a mold. None of these components can be skipped.It is very important to use and maintain the die-casting mold properly if you want to get the most out of it in terms of production efficiency, brand quality, and high economic benefits during the application and production process. Additionally, proper use and maintenance of the die-casting mold will help it last longer.Reduce as much as you can the rate at which the mold is heating up and cooling down, and make every effort to keep production going.When the mold is in the cold state, it is not possible to inject at a high speed.
The die-casting mold is continuously subjected to a reciprocating fatigue state of thermal expansion and contraction while the die-casting process is being carried out.The mold endures rapid changes in die casting manufacturer temperature, both in terms of cooling and heating; as a result, the mold suffers from fatigue and structural damage as a result of the constant thermal expansion and contraction..
As a result, the production process for die-casting should be as continuous as is practically possible, and the rapid cooling and heating of the mold should be minimized to the greatest extent possible in order to make the mold's lifespan as long as is practically possible.In the event that this does not occur, the various gaps in the mold, such as the slider, the ejector hole, and other parts, will easily penetrate the aluminum skin, causing damage to the mold and reducing the mold's useful lifespan.The injection speed should be slowed down as much as possible, the specific pressure should be lowered as much as possible, and the mold impact should be minimized.
When the injection speed is increased, not only does it have an effect on the filling speed of the die-casting and the speed of the injection gate, but it also causes an increase in the impact peak value. This occurs during the production of die-castings.Therefore, when we adjust the process of die-casting, it is very important to reduce the injection speed as much as possible in order to extend the life of the mold and improve the economic benefits of the die-casting enterprise. This is done while ensuring that the product quality is maintained.
Die-casting machines have progressed to the point where they are now equipped with injection braking equipment. This has many advantages, including a reduction in the impact peak, a reduction in the impact force received by the mold, and an increase in the mold's lifespan.The injection specific pressure ranges anywhere from 400 to 900 kg/cm2 in most cases. This range is determined by the quality requirements as well as the properties of the casting.When the pressure is above 900 kg/cm2, it typically has very little effect on the casting's internal quality.At the same time, if the mold is subjected to a significant expansion force, this will also cause damage to the mold or significantly reduce the mold's lifespan.
It is common practice to disregard the injection specific pressure because observing it is not as straightforward as observing the injection speed.In point of fact, the injection specific pressure is an important parameter in the process of die-casting. This parameter not only has an effect on the quality of the castings, but it also has a significant bearing on how long the mold will remain functional.In the event that the sealing or aluminum skin appears while using the mold, it is important to ensure that it is cleaned up in a timely manner in order to avoid squeezing the mold.
When molds are used, it is not uncommon for the mold to develop a sealing and an aluminum skin for a variety of reasons.Due to the extremely high clamping force of the die-casting machine, the slider will collapse and be damaged if the slideway penetrates the aluminum skin, etc. Especially when it comes to the slider part of the component.In the alternative, waiting until the mold is damaged before repairing it will have a significant negative impact on the mold's lifespan.
The temperature at which molten aluminum is poured during the production of die-castings has an impact not only on the quality of the castings, but also on the amount of time that the die-casting mold will remain functional.When it comes to die-casting in general, the pouring temperature of liquid aluminum ranges anywhere from 630 to 720 degrees Fahrenheit.When determining the pouring temperature for the various components, it is recommended that a lower pouring temperature be selected whenever possible.This not only helps save money on energy costs, but it also lengthens the amount of time the die-casting mold can be used.Therefore, appropriately reducing the temperature at which molten aluminum is poured into the die-casting mold will help to extend the service life of the mold.
Die-casting molds have been continuously produced under extreme custom die casting conditions, including high temperatures, high pressures, and high speeds. To ensure the dependability of the mold during die-casting production, the use conditions are fairly severe, and there is a possibility that the mold will become damaged or stop functioning while it is being used.It is possible to say the same thing about extending the mold's service life.In the event that it is not removed in a timely manner, the surface of the mold will easily crack or split.In the future, depending on the conditions of use, generally every 10,000 molds that are produced will require stress relief and tempering of the mold cavity. This can significantly extend the amount of time that the mold is useful for its intended purpose.