How to determine whether or not die castings are airtight » S4 Network
by on 16. January 2023
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Die castings can be found in a wide variety of applications and are commonplace in people's everyday lives. Some examples of these applications include automobiles and trucks, home appliances and hand tools, electronic communications, the defense industry, and other fields. Because die castings are so widely used, there is no one China die casting mold set of technical requirements or specifications that applies to all castings. Even within the same industry, different companies and organizations have varying standards for the same product. However, there is one requirement that must be fulfilled by all die casting products, and that requirement is air tightness. Therefore, it is important to know how to test the air tightness performance of die castings, as well as how to test the air tightness of die castings.

 

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Tests to determine whether or not die castings are airtight are typically carried out using the die castings' own sealing equipment. Die castings are used to seal Goel's products because they pass air tightness testing, which determines whether or not there are cracks or trachoma on the die castings that cannot be seen by the naked eye. Instrumentation for determining the degree to which die castings are airtightThe majority of the products are only partially finished, one side is open so that it can be directly inflated by sealing this side for testing, and the rest of the holes can be sealed with a hole-shaped sealing head with the assistance of a cylinder, and then connected to the die-casting parts for tightness. One side of the product is open so that it can be directly inflated by sealing this side for testing. After adjusting the parameters, you can begin to detect the tightness of the die-casting parts using the mouth of the equipment. This occurs after the zinc die casting manufacturer parameters have been set. The sensor built into the apparatus is able to directly detect the products that have leakage and can give the detection results automatically in accordance with the parameters that were set.

 

Anodized casings typically have high yields and excellent appearance and texture, but they are costly, require a significant amount of CNC, and have a lengthy processing cycle. It is a classic example of a high price being justified by a high quality product, such as the Apple series. When CNC is utilized, it takes more than thirty minutes to complete the cutting, and it is estimated that the finishing work will take nearly an hour's worth of time. As an illustration, let's consider the case of a mobile phone. The formation stage of the die-casting process only takes around 20 to 30 seconds, and the finishing stage can be finished anywhere between 10 and 20 minutes. Die-casting processing shells are formed by molds, which results in a short processing time and relatively low cost; however, it is difficult to anodize aluminum alloy for die-casting because of its high melting point.

 

Die-casting parts can complete the structure and edge lines of a part in a way that is difficult to achieve with forged parts, automobile parts, or CNC parts. The quality of the oxidation is the most important factor in determining the overall quality of the die-casting parts. The quality of the anode is determined by a relatively minor adjustment and careful process control. Manufacturers who participate in the oxidation of die castings are required to implement scientific flow die casting mould channel technology control, as well as die casting process and post-processing methods for the mold. The uninterrupted production of high-quality oxidation can be guaranteed by utilizing these various steps of stringent quality control.

 

The design of mold runners and gates, as well as the control of mold temperature; as a result of the high aluminum content of raw materials, as well as the characteristics of poor fluidity and high working temperature, the runners and gates of molds are designed based on a short-range design. waterways are an acceptable option. The mold temperature controller is utilized to ensure that the temperature of the mold is maintained at its equilibrium level, as well as to prevent excessive local supercooling and flow marks;utilizing raw materials helps to eliminate potential sources of pollution;Raw materials are chosen for their low impurity content when possible;Graphite crucibles of the highest quality must be used exclusively; they cannot be combined with any other raw materials in the production process. This ensures that the elements silicon, copper, iron, and zinc do not contribute to pollution during either the production process or the use of the product. Controls are implemented in the die-casting process to minimize the appearance of watermarks and black watermarks. During the production of die-casting, professional release agents are used, and scientific spraying is used to reduce the amount of residual water drops in the cavity in order to prevent die-casting watermarks;Before processing, ensure that the pressure and speed of the die-casting process are under control, and take steps to reduce local overpressure as well as easy sticking of the mold. After processing, manually polish or grind the product to remove burrs and oxide layers, depending on the requirements of the product.

 

The term "CNC lathe feed processing route" refers to the path that the turning tool travels from the tool setting point until it returns to the point and ends the processing program. This path includes both the path of cutting processing and non-cutting empty travel paths such as cutting in and out of the tool. The processing program is terminated when the turning tool returns to the tool setting point. Because the feed route of finishing machining is fundamentally carried out in a sequential fashion along the contour of its parts, the primary concern when determining the feed route is to determine the feed route of rough machining and empty stroke. When processing with a CNC lathe, the determination of the processing route generally adheres to the following principles: it should be able to ensure the accuracy and surface roughness of the workpiece that is to be processed, in order to ensure that the processing route is as short as possible, the idle travel time is reduced, and the processing efficiency is improved. Make an effort to reduce the amount of time spent performing numerical calculations, streamline the processing program, and make use of subroutines in some of the reusable programs.

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