Casting With Special Casting

- Oct 11, 2017 -

Castings are widely used in mechanical products, mainly in the following characteristics of casting methods:

1. Compared with forging, stamping, welding and powder metallurgy, the casting method can produce a complex shape, especially a blank and a part with complex inner cavity shape. Casting Parts such as internal combustion engine body, cylinder head, machine tool bed body, box, all kinds of pump body, boat with SRTEPC rotor and so on. and to the casting method to the part structure shape limit small, the casting may according to the ' force condition use the most reasonable section shape, and according to the need also may set the reinforcement reinforcement and so on, to mention. Structure strength and stiffness. If the forged steel crankshaft is changed into nodular cast iron crankshaft, Casting Parts the structural strength and stiffness of the cast crankshaft can be increased by changing the structure of the Chisi, uranium hole and other parts.

Under certain conditions, the structure of the parts can be made more reasonable by using special casting, inlay casting, double gold casting, small channel casting technology and casting and welding structure. These methods can also be used to solve some difficult problems in other metal forming methods to achieve better technical and economic results. For example, because of the development of jet engines, Casting Parts it is required to manufacture high temperature alloy parts, such as turbine blades, that are accurate in size, complex in shape and difficult to be machined or even finished without cutting, and work at high temperatures above 1000^. For this kind of parts with small complex inner cavity using the method of investment casting and ceramic core, it can not only solve the problem of machining difficulty or can not be processed, but also can improve the passing rate of parts and save the high quality alloy materials.

Casting method can be used to produce various materials and sizes of castings. At present, the commonly used metal in industry can be cast, and some gold materials, such as the use of very extensive cast iron, Casting Parts can only be formed by casting methods. The size of the castings can be produced from small to several grams of instrument parts to 200 or 300 tons of metallurgical mines and power equipment heavy castings.

The cost of castings is generally lower. This is because the foundry used raw materials are relatively inexpensive, a wide range of sources, but also directly using the scrap gold to remelting. Casting Parts At the same time, there is no need for expensive equipment under normal circumstances. In addition, because the shape and size of the castings are close to the final part, it can reduce the cutting work, save metal and reduce the cost of the parts.

Casting weight and size range are very wide, the lightest weight only a few grams, the heaviest can reach 400 tons, the wall thickness of the thinnest only 0.5 mm, the thickest can exceed 1 meters, Casting Parts the length can be a few millimeters to more than 10 meters, can meet the requirements of different industrial sectors.

The use of castings is very extensive, has been used to hardware and the entire machinery and electronics industry, and its use is becoming a growing trend. Specific use, construction, hardware, equipment, construction machinery and other large machinery, machine tools, ships, aerospace, automobiles, locomotives, electronics, computers, electrical appliances, lamps and other industries