In the tool matching model established by Niu Jiahui, polycrystalline cubic boron nitride (PCBN) tool ranks third among the tools […]
Vermicular graphite cast iron, as a material that can replace gray cast iron, will be widely used in the future.
At present, there are few studies on the cutting simulation of vermicular cast iron. According to the different three phases,
In the research and application of vermicular cast iron, Europe is in the leading position in the world. In the
In the 1960s, China began to study vermicular cast iron, but the production and processing of vermicular cast iron is
Traditional sand casting often has design limitations in process, especially for the forming of complex castings, the differences of casting
As shown in the figure, the phase diagram of gjv450 vermicular graphite cast iron seen under the laser microscope after
The samples of Hypoeutectic and hypoeutectic chromium white cast iron were prepared by pressure casting. The effect of solidification pressure
The results show that the morphology and distribution of primary phase and eutectic structure in the solidification structure of chromium
In addition to the fine grain strengthening effect under pressure, the effect of pressure on carbide morphology is also worth
Pressure casting is an advanced near net shape casting process. The melt bears high pressure after pouring and filling until
By developing the appropriate combination of microstructure phases, cast iron can obtain the required properties in any specific application. These
When the volume fraction of carbide with high hardness in the solidification structure of Cr based alloy is 20 ~
The whole contour of eutectic structure in hypereutectic chromium cast iron is very similar to that of Hypoeutectic and eutectic
According to the different carbon content, the solidification structure of chromium alloys can be divided into hypoeutectic, eutectic and hypereutectic.
The solidification structure of chromium alloys is closely related to the content of C and Cr in them. According to
Long term industrial practice shows that chromium white cast iron has excellent stability and relatively low production cost in high
Drying is the process of removing the carrier from the coating. The sand core should be dried in time after
Suspensibility refers to the ability of coating to resist stratification and precipitation of solid refractory powder. On the premise of
In order to effectively solve the problem of core breaking during sintering of water jacket and oil passage of cylinder
According to the high temperature strength theory of metals, with the increase of temperature, the strength of grain boundary decreases
In view of the complex service environment of automobile engine cylinder and piston, cast heat-resistant aluminum alloy not only has
The microstructure and morphology of materials play an important role in determining their mechanical, thermal and electrical properties. It is
At present, FDM / FEM integration is widely used in the calculation system of temperature and stress field in casting
At present, the elongation indexes of high strength and high plasticity pearlitic ductile iron produced by domestic foundry enterprises are
Foreign R & D Some foundry companies such as GF, Fiat and FCD have established enterprise standards and started to
The characteristics of as cast high strength and high plasticity pearlitic ductile iron are as follows: (1) Compared with ordinary
At present, there are two kinds of as cast high strength and high plasticity ductile iron in China： The first
At present, there is a production line of a casting factory, with CNC multi axis grinding machine, mechanical arm, automatic
According to the actual situation of the current domestic foundry industry development, combined with the production technology, the effective equipment
