{"id":2891,"date":"2023-08-15T03:54:56","date_gmt":"2023-08-15T01:54:56","guid":{"rendered":"https:\/\/mnwell.com\/?p=2891"},"modified":"2023-08-15T03:56:08","modified_gmt":"2023-08-15T01:56:08","slug":"what-is-precision-pressure-die-casting","status":"publish","type":"post","link":"https:\/\/mnwell.com\/ru\/what-is-precision-pressure-die-casting\/","title":{"rendered":"What is Precision Pressure Die Casting"},"content":{"rendered":"

As an important technology in the modern manufacturing industry, die-casting technology has an irreplaceable position in the manufacture of precision parts. Die casting is a manufacturing technique used to create metal parts. This technology is used to inject molten metal into a metal mold, and then rapidly cool and form it under high pressure (usually hundreds to thousands of tons of pressure), which can achieve high-precision and high-efficiency parts manufacturing, and provides various industries with Excellent solutions.<\/p>\n\n\n\n

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Pressure Die Casting<\/h3>\n\n\n\n

Die casting refers to the method of filling the cavity with liquid or semi-solid metal at high speed (0.5\u201350 m\/s) under the action of high pressure (40\u201380 MPa), and solidifying under high pressure to obtain castings. The die-casting method originated in 1838. G. Bruce first used the die-casting method to cast lead characters on the original die-casting machine invented by Bruce Company in the United States. With the continuous development of die-casting technology, the current die-casting technology also includes: vacuum die-casting, oxygenation, and Die casting, precision die casting, semi-solid die casting, and so on<\/p>\n\n\n\n

Characteristics of pressure casting<\/h4>\n\n\n\n

High speed, high pressure, and metal mold are the main characteristics of die casting production, which greatly improves the filling capacity of liquid metal, and can cast thin-walled castings with complex shapes, and can directly cast small medium lines, holes, teeth, grooves and text, etc., the dimensional accuracy and surface quality of castings are relatively high, and the machining accuracy generally reaches 1T11~IT13. The utilization rate is high, and its application in the die-casting production of zinc, aluminum and magnesium alloys has a growing trend.<\/p>\n\n\n\n

Because liquid metal crystallizes under high pressure, the castings have a denser texture and a tighter surface, so the strength and surface hardness of the castings are higher, and the tensile strength is 25% to 30% higher than that of sand castings. The molding speed is fast, and the gas in the cavity is difficult to discharge, and small holes full of commercial pressure gas are often formed under the surface of the casting. Therefore, in general, die castings cannot be heat treated or machined to avoid the appearance of the casting surface. Vent.<\/p>\n\n\n\n

Classification of pressure casting<\/h4>\n\n\n\n

Die casting can be technically divided into special die casting and ordinary die casting. Special die-casting includes vacuum die-casting, oxygen-charged die-casting, squeeze die-casting, semi-solid die-casting, etc. Divided from the use platform, it includes two types of hot chamber die casting and cold chamber die casting.<\/p>\n\n\n\n