Low pressure casting has the characteristics of good molding performance, high surface quality, and high production efficiency, but it also produces casting defects such as pores, cracks, shrinkage cavities, and porosity during the production process. In the low-pressure casting process of aluminum alloy sleeves, there are many factors that...
According to the L9 (3 ^ 4) orthogonal experiment, the results of the orthogonal experiment are shown in Table 1. Perform mean and range analysis on the experimental results, and determine the optimal combination of process parameters through discussion of various quality evaluation indicators. Number A B C D...
There are many process parameters of low pressure casting, among which the temperature distribution and filling speed have great influence on the forming of low pressure casting. The temperature distribution determines the solidification sequence of low pressure castings. A reasonable temperature field can avoid the occurrence of isolated liquid...
Low pressure casting, as a mature casting process, has the characteristics of smooth filling, low cost, and good casting quality, and is widely used in the production of automotive components such as wheels. However, as the lightweight of auto parts is included in the development plan of “Made in...
The turbine guide is an important component within a gas turbine engine, whose main function is to change the flow direction of high-temperature gas, drive the turbine blades to rotate, and then complete the potential energy conversion between the gas and the blades. Due to the need for this...
Pressure casting molding is an advanced and efficient casting molding method, which is widely used in automobile, communication, household appliances and other fields. In recent years, with the vigorous development and attention of energy conservation and emission reduction and product lightweight technology in the world, pressure casting parts have...
In the early application of squeeze casting technology, the melt transportation was basically manual transportation and mold filling. The labor intensity of workers was high, and the production efficiency was low. During the mold filling process, the high-temperature molten metal was prone to oxidation, which affected the performance of...
Al-Si alloy has good casting properties. After modification, inoculation and heat treatment, it has good comprehensive mechanical properties, corrosion resistance and good cutting performance. It is the most famous and most widely used alloy among cast aluminum alloys. It is widely used in military, industrial, railway transportation and other...
Casting process refers to the process of pouring high-temperature liquid metal into the mold to obtain a certain shape of castings after cooling and solidification. The spiral bevel gear studied belongs to small thin-walled precision steel castings. The casting material 20CrMoH belongs to low alloy steel, which has high...
Pressure casting Pressure casting refers to the process of injecting molten metal into the mold under the action of other external forces (excluding gravity). Pressure casting in a broad sense includes pressure casting, vacuum casting, low-pressure casting, centrifugal casting, etc; Narrow sense of pressure casting refers to the metal...