Suspension control of casting coatings
Suspensibility refers to the ability of coating to resist stratification and precipitation of solid refractory powder. On the premise of […]
Suspensibility refers to the ability of coating to resist stratification and precipitation of solid refractory powder. On the premise of […]
Through the characterization and analysis of the morphology of the above hypoeutectic alloy 1 # eutectic structure, the eutectic morphology
In order to effectively solve the problem of core breaking during sintering of water jacket and oil passage of cylinder
Because the primary phase in the solidification structure of alloy 1 is austenite, the eutectic austenite in the divorced eutectic
According to the high temperature strength theory of metals, with the increase of temperature, the strength of grain boundary decreases
Through the quantitative characterization of eutectic structure under different pressures, it can be seen that the morphology of each phase
In view of the complex service environment of automobile engine cylinder and piston, cast heat-resistant aluminum alloy not only has
The metallographic structure shown in the figure is the metallographic structure photo of near eutectic alloy 2. It can be
The microstructure and morphology of materials play an important role in determining their mechanical, thermal and electrical properties. It is
1. Hardness test (1) Macrohardness Thbrv-187.5 electric broville hardness tester is mainly used for macro hardness analysis of samples. As
At present, FDM / FEM integration is widely used in the calculation system of temperature and stress field in casting
1. Sample preparation (1) Sample grinding and polishing Use pg-2da metallographic sample polishing machine to pre grind the sample with
At present, the elongation indexes of high strength and high plasticity pearlitic ductile iron produced by domestic foundry enterprises are
1. Alloy melting The alloy was melted in 500 kg medium frequency induction furnace in air atmosphere. The raw materials
Foreign R & D Some foundry companies such as GF, Fiat and FCD have established enterprise standards and started to
The main equipment of pressure casting experiment includes liquid die forging machine, special concave convex die, pouring ladle and pouring
The characteristics of as cast high strength and high plasticity pearlitic ductile iron are as follows: (1) Compared with ordinary
The raw materials used in the experiment are two kinds of alloy composition, including low chromium hypoeutectic white cast iron
At present, there are two kinds of as cast high strength and high plasticity ductile iron in China: The first
The purpose of this study is to modify the solidification structure of chromium white cast iron by pressure casting. The
At present, there is a production line of a casting factory, with CNC multi axis grinding machine, mechanical arm, automatic
The solid-liquid phase transition process changes greatly under pressure. With the increase of the temperature of the solid-liquid phase line,
According to the actual situation of the current domestic foundry industry development, combined with the production technology, the effective equipment
The effects of pressure on solidification structure, including nucleation rate, undercooling and diffusion coefficient of alloy elements, provide a good
1. Expensive equipment and high cost After investigation, it can be found that the reason why the grinding field has
The solidification process can be regarded as a binary system with solid-liquid two-phase equilibrium. The degree of freedom of the
In the whole pressure pipeline system, valve is the key control device. Its main function is to connect or block
Many studies have shown that the tool life of cutting vermicular graphite cast iron is 1/10 of that of cutting
1. Analysis of extrusion position Because the leakage position is between the two oil passages on the moving die side,
Uniform and stable coating composition is the basis to ensure the coating process performance, which belongs to static control for