Equipment for smelting zinc alloy used in die casting The hot chamber die casting machine is fitted with a furnace that is able to melt the zinc alloy while also holding it in place. However, for manufacturers with a certain production scale, the zinc alloy liquid is sent to the furnace of each die-casting machine by centralized melting. This is very important for ensuring that the zinc alloy Liquid quality is improved, as it helps to ensure that the zinc alloy Liquid quality is more favorable. The zinc alloy ingots are melted in the central melting furnace, while the die-casting machine melting furnace serves as a holding furnace. Both furnaces are located in the same building. The composition of the zinc alloy and its temperature are both more likely to remain stable as a result, which is one of the advantages of this method.

Savings in terms of energy consumption Because each die-casting die casting China machine is not required to melt zinc alloy ingots. It is only used for heat preservation, and the amount of oil required for heat preservation is only a quarter of the amount required for melting. The atmosphere in the workshop is fresh and clean, which helps to reduce the amount of heat energy and pollution in the workshop. Quicken the process of recovering and treating nozzle materials and return materials, both of which can be modified in terms of their composition. The central melting furnace features an automatic conveying system, which is capable of meeting the liquid zinc alloy requirements of anywhere from 20 to 30 die-casting machines simultaneously. Automatic feeding machine The automatic feeding machine is outfitted with specialized heat preservation equipment to ensure that the temperature of the liquid zinc alloy remains stable. Additionally, the automatic feeding machine is able to transport the liquid zinc alloy to the furnace of each die-casting machine in a timely, automatic, efficient, and risk-free manner.

Boost productivity while simultaneously conserving the available human resources. During the design phase of the pouring system, more slag collecting bags are opened for zinc alloy die-castings that must meet stringent quality standards. This allows for the production of die-cast products that contain an increased number of nozzle materials. If the nozzle material is directly added to the furnace of the die-casting machine, it is easy to cause the following problems: when the amount added is too large, the temperature of the furnace will be lowered, and the fluidity of the zinc alloy liquid will be deteriorated; too thick slag will accumulate on the surface of the furnace, and it will be difficult to feed; when there are many materials, the mechanical properties of the die-casting products are poor; the die-casting products themselves have poor mechanical.

The remelting temperature is kept between 420 and 440 degrees Celsius, and a specialized nozzle recovery furnace is utilized in the process. After the material from the nozzle and the material that was returned have both been completely melted, they are subjected to a slag remover treatment in order to remove a layer of ash, oxides, inclusions, and other impurities that has formed on the surface of the zinc alloy liquid. Fishing and cleaning should be done in two separate steps so that the purity of the zinc alloy liquid can zinc alloy die casting be maintained, the quality of die castings can be improved, waste products can be reduced, and production costs can be lowered. The Gancup must be cleaned before each use in order to remove any oil, rust, slag, or oxides that may have accumulated on its surface. It is necessary to heat the iron crucible to temperatures between 150 and 20,000 degrees Celsius in order to prevent the iron element from dissolving in the zinc alloy. After this, the working surface should be heated to temperatures between 200 and 300 degrees Celsius in order to completely remove any moisture that may be present in the paint.

It is recommended that the paint be coated with two layers of paint, one of which should be chosen from the following options: 1 talcum powder combined with 6% water glass; 2 quartz powder combined with water glass; or 3 commercial Gancup paint. Before use, the tools used for smelting should be cleaned of any surface dirt, and the parts that come into contact with metal should be preheated and painted. The instruments must be kept free of any trace of water; otherwise, the molten metal will splash and explode when it cools. Before melting the alloy material, it needs to be cleaned and preheated so that the moisture that has been absorbed on the surface can be released. It is recommended that two thirds of the material be brand new, and one third of the material should be recycled, so that the composition of the zinc alloy can be controlled. Zinc alloy has a low melting point of between 382 and 386 degrees Celsius. If the temperature of the new machine's furnace is broken down into three stages, the first stage has a temperature of 200 degrees Celsius, the second stage has a temperature of 380 degrees Celsius, and the third stage has a temperature of 420 degrees Celsius. The raw material should then be cut into three pieces and placed into the furnace (if there is a nozzle material, you may first melt half of the pot material).

In addition, you will need to halt the machine in order to remove the zinc solution using a scoop. After that, you will need to re-melt the material using the temperature settings from the previous three-stage adjustment. This will prevent the explosion of the cold material and the burning out of the crucible. 5) The melting temperature cannot be higher than 440 degrees Celsius. When the temperature rises above 440 degrees Celsius, it will corrode the iron crucible and the tools very quickly. It is important to remove the scum from the liquid surface in the zinc pot in a timely manner, replenish the zinc material in a timely manner, and maintain the normal height of the molten liquid surface (not lower than the crucible surface 30mm). This is because an excessive amount of scum and an abnormally low liquid level can easily cause slag to enter the gooseneck cylinder, which causes the steel ring, the hammer head, and the gooseneck cylinder itself to be strained,Using a slag rake, give the scum that is floating above the melt a light stirring so that it can collect and be removed.

It is a common misconception that the deformation that occurs in the mold after it has been subjected to heat treatment is due to the cooling process. When it comes to molds, and especially when it comes to complex molds, whether or not the processing technology is correct can often have a significant impact on the degree to which the mold deforms. When several different methods of mold heating are compared, one thing becomes immediately apparent: the faster heating speed almost always results in a greater degree of deformation. When the steel is heated, the uneven temperature of each part in the same mold (that is, uneven heating) will inevitably cause the inconsistency of the expansion of each part in the mold, thus forming Uneven internal stress. This is because any metal will expand when heated.

Uneven heating causes a significant amount of thermal stress at temperatures below the phase transition point of steel, whereas uneven heating that occurs at temperatures above the phase transition point causes anisochronism of tissue transformation, which not only causes tissue stress but also causes thermal stress. Therefore, the greater the stress, and the more significant the deformation of the mold after heat treatment, the faster the heating rate, the greater the temperature difference between the surface of the mold and the center of the mold, and the faster the heating rate. It is important to gradually increase the temperature of Surface Finish Services complex molds when heating them below the phase transition point. When compared to the deformation caused by heating in a salt bath furnace followed by quenching, the deformation caused by quenching in a mold vacuum is significantly less severe. Preheating can be done once for low-alloy steel molds, but it should be done twice for high-alloy steel molds. Low-alloy steel molds can be preheated once, but high-alloy steel molds should be preheated twice.