The quality of zinc alloy die castings is largely determined by a number of factors, one of which is the injection performance of the die casting machine. This is a significant factor that plays a significant role. However, during each and every injection process, there will invariably be deviations from the curves that have been pre-set. This is something that cannot be avoided. This must be corrected at the appropriate time during the injection process in order to ensure that the process is successful. deviation, correct the corresponding data while it is being injected, and switch it to corrected data in a very short period of time, thereby returning it to the minimum deviation range that was initially set. This is accomplished by minimizing the amount of deviation that occurs. In this section, the control of injection is displayed in real time.

 

There are three categories that can be used to classify the variables that are involved in the process of mold filling. These categories are static, artificial, and dynamic aspects of the process. In terms of complexity and variety, these factors encompass a wide range of possibilities. Examples of static aspects include the performance of the die-casting machine itself, the structure of the zinc alloy die-casting, the structure of the die-casting mold, the accumulator pressure, and the boost pressure. All of these aspects are examples of static aspects. There is a significant quantity of dynamic variables, which are also the ones that present the greatest degree of difficulty in terms of their management. A number of factors are taken into consideration, including the quantity of metal Ductile Cast Iron that is contained within the pressure chamber, the resistance of the punch while it is being used, the temperature of the die-casting mold, and the negative pressure curve that is utilized when vacuum die-casting is being performed. Two of the most important parameters that have an effect on the filling conditions are the pressure that is applied to the mold and the speed at which the punch is used. Both of these factors have a significant impact on the filling conditions.

 

Secondly, make sure. A tolerance zone that encompasses the speed curve is established as the primary boundary at the point in time when the actual requirements of the casting services are taken into consideration. As long as the speed of each injection stays within the tolerance zone, it is possible to manufacture castings that are capable of meeting the requirements for qualification.

 

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The drawing's strict tolerance zone is followed by the utilization of a more relaxed tolerance zone as a warning zone. This is done in accordance with the drawing's tolerance zone. An operator has been informed that the die casting machine is currently producing scrap. This information has been brought to the operator's attention. Additionally, the static effects that were discussed earlier are able to be improved upon as a result of the implementation of particular adjustments to the die-casting machine. The injection control system is accountable for compensating for deviations that are brought about by both dynamic factors and human factors because it is responsible for regulating the injection. Furthermore, modifications to the die-casting parameters can be made through the system while the injection is being carried out through the use of the system. In order to achieve results that are satisfactory, it is necessary to adjust the speed curve control by a factor of one tenth of the filling time. This results in a total reaction time that ranges from two to eight milliseconds. In the context of this discussion, the term "total reaction time" refers to the period of time that begins with the deviation value that is determined by the sensor and concludes with the punch reacting to it at the instant.

 

To phrase it another way, the total reaction time must take into account the response time of the hydraulic system, which includes both the valve and the driving cylinder. In order for the system to satisfy this requirement, it must have a limited amount of damping and a few light moving parts. The response time of the system must therefore be controlled within a few milliseconds in order to achieve the desired results. Material that is included in the real-time injection control system that is particularly significant

 

An example of a closed-loop control system is the real-time injection control system, which is comprised of a component known as a fast-responding servo system. In terms of rapid response, electro-hydraulic servo valves are the only ones that possess this particular quality. In addition, real-time injection control must be a closed-loop control, and a single closed-loop control does not constitute real-time injection die casting products control in order for it to be considered real-time injection control. Within the context of die-casting production, the effects that real-time injection is currently having on the production processIt is important to ensure that every mold is balanced both before and after the process. This helps to ensure that a high level of reproducibility is maintained, and it also helps to reduce the scrap rate to only 0.2%.2. Improve the efficiency within the production process.

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Injection control has a number of advantages, including increased productivity and a reduction in the amount of time required for the cycle. Furthermore, the braking impact is minimal, and die castings that are produced by die-casting machines that typically require a greater clamping force can be transferred to die-casting machines that are faster and require a smaller clamping force. This is possible because Ductile Cast Iron the braking impact is minimal. In spite of this, the control system has taken into account the deviation of process parameters within a specific tolerance range under normal operating conditions. As a consequence, the amount of time that is necessary for mold testing has been reduced through this process. Once one to two mold trials have been completed, it is not uncommon for the product to be able to be manufactured. die castings made of zinc alloy that are within the standards. Reduce the amount of metals that are consumed.

 

In addition, zinc alloy die castings do not have flash, and it is possible to reduce the size of the pouring system, the overflow exhaust system, and the material that is left over. Providing that the die-casting mold is installed in the appropriate location, it is possible to automatically produce qualified zinc alloy die-casting parts without casting services the need for memory, observation, or adjustment. This is the case provided that the mold is installed in the appropriate location. Increasing the lifespan of die-casting molds is something that should be done.

 

As far as die-casting mold wear is concerned, flash is the most common cause of the problem. In addition to causing damage to the die casting products surface of the die-casting mold, flash also results in a decrease in the surface quality of zinc alloy die-casting parts that are used on the mold. As a consequence of this, the expenses associated with trimming castings, the expenses associated with repairing molds, and the losses that are brought about by downtime are all increased.

 

A closed-loop hydraulic control system, the real-time injection control system is primarily composed of electro-hydraulic servo valves as its main body. This system is designed to control injections in real time. Servo valves that are electro-hydraulic are a type of conversion device that are utilized for the purpose of achieving flow or pressure control. This is accomplished by converting electrical signals into hydraulic signals. In addition to being suitable for long-distance control, hydraulic power is also easy to detect, compare, and correct. Furthermore, it possesses the advantages of having a large output force, a small inertia, and a quick response. All of these characteristics make using hydraulic power advantageous. Electro-hydraulic servo valves are characterized by a flexible control, high precision, and quick response. These characteristics are made possible by the combination of the two types of servo valves. An example of a control component that possesses a high yield power would be more appropriate.