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Precision casting characteristics?

Precision casting is a kind of high-precision, high-quality parts made by casting process. It has the following main features: High precision: precision castings require high dimensional accuracy, which can reach GB-CT5 level or even higher standards. The size and shape of the castings can be precisely controlled during the casting process to make them exactly the same as the design drawings.

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How to determine the temperature of precision castings and casting pouring location

Precision casting is a high-precision casting products, it has the precision and stability requirements of all aspects of the production process to meet high standards, of which the casting temperature and pouring position is an important two links. Therefore, how to determine the temperature of the precision casting and casting pouring position is the key

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Precision casting parts pouring methods and precautions

Precision casting parts refers to the casting of dimensional accuracy, surface quality, internal quality and performance requirements are very high, usually used in aviation, aerospace, military, energy and other high-end fields. In the process of precision casting, the choice and mastery of pouring method and technology are the key

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Basic Concepts of Precision Casting Parts

Precision casting parts include: investment casting, ceramic casting, metal casting, pressure casting, lost foam casting. One of the more commonly used is investment casting, also known as lost wax casting: selection of suitable investment casting materials (such as paraffin wax) manufacturing mold; in the mold on the repeated dipping refractory coatings and sprinkle refractory sand process, hardening and drying of the shell; and then the internal melting mold melting away, access to the cavity; baking shell to obtain sufficient strength, and burn off the residual mold material; pouring of the required metal materials; solidification and cooling, after the shell clearing of sand, and thus obtain high-precision finished products. The result is a high precision finished product. According to the product needs or heat treatment and cold working and surface treatment.

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Principles of selection of precision casting parts

Casting is an ancient manufacturing method, which can be traced back to 6000 years ago in China. With the development of industrial technology, the development of casting technology is also very rapid, especially at the end of the 19th century and the first half of the 20th century, there are many new casting methods, such as low-pressure casting, ceramic casting, continuous casting, etc., which have been improved and practical in the second half of the 20th century. Due to the casting quality, casting accuracy, casting costs and casting automation requirements, casting technology to precision, large-scale, high quality, automation, clean and other directions, such as precision casting technology, continuous casting technology, special casting technology, casting automation, casting molding simulation technology. Casting main process includes: metal melting, model manufacturing, pouring solidification and demolding cleanup. Casting methods commonly used is sand casting, followed by special casting methods, such as: metal casting, molten mold casting, plaster casting ...... and so on. Sand casting can be divided into clay sand, organic binder sand, resin self-hardening sand, disappearing mold and so on.

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Scope and method of cleaning precision casting parts

It is categorized into dry and wet methods. Dry cleaning is the use of mechanical equipment to clean the castings. The equipment used is simple, high productivity, adaptable to different types of castings, with the advantages of core removal and high surface cleaning efficiency. The disadvantage is that the equipment often produces dust, noise and environmental pollution during operation. Wet cleaning has no dust, but due to the use of water as a medium, the surface of the casting is prone to rust and pollution. The operation process generates a large amount of sewage and cement sand, causing problems such as sand and water regeneration and sludge disposal.

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Roswell

Products involved in aviation, medical, automotive, agricultural machinery, ships, building hardware, industrial parts, decoration and crafts precision castings;

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13720181143

18971071539

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