Effect of silicon solution strengthening on properties of nodular cast iron
1) The strength and elongation properties of y-block hot metal casting were compared. It can be seen that with the […]
1) The strength and elongation properties of y-block hot metal casting were compared. It can be seen that with the […]
Scheme 1 According to the simulation results in Fig. 1 (E), the whole filling process takes about 19.6 s, which
In order to control the content of some trace elements (Ti, Pb, etc.) in Vermicular Graphite Cast Iron and ensure
The working conditions of hydraulic turbine equipment are strict, and runner, as the core component of hydraulic turbine, has been
1.Key points of cold depth control (1) cold iron. In the early stage of product development, according to its own
When the chemical composition and matrix hardness of the hot metal are controlled in the small range mentioned above, the
1.Analysis of process characteristics Pancake iron castings (diameter and thickness) δ Although the shape of the casting is simple, it
The solidification process of liquid metal is divided into three phases: liquid phase, solid / liquid phase coexistence and solid
In the solidification process, because of the wide range of crystallization temperature, the basic metal skeleton is formed first when
Geometric modeling The heat transfer between the liquid metal and the pattern occurs during the filling process Where, ρ P
Crawler shoe is the key component of roadheader walking mechanism, which is connected by pin to form crawler shoe chain.
The segregation behavior of impurity elements needs to be analyzed from the aspects of solidification thermodynamics and kinetics. From the
According to the data in Table 1, the segregation position of each element along the longitudinal direction can be further
The contents of impurity elements at different positions in A356 aluminum alloy wheel hub by reverse squeeze casting are shown
The test material is A356 aluminum alloy, and its chemical composition is controlled according to American Standard b108-03a. A heavy
The top plate casting is an important part of the supporting transportation equipment for metallurgical vehicles. Its structure is shown
1 Mold Design According to the overall dimension of the product, the size of sand box is 550 mm ×
1 Production Process The production process is shown in Fig. 1 ~ 5, including coating spraying, coating drying, core setting,
The casting process of crusher frame products is relatively mature, and the process design ideas are generally similar, and the
The cutterhead body produced by the company is made of ZL104 material. The cutterhead body is used to install the
As for the development of vermicular graphite cast iron technology, in 1948, the Americans applied it. However, due to the
In the process of solid solution, the alloy elements are dissolved into the base metal, the hardness and strength of
According to the above research and analysis, it is concluded that the best T6 heat treatment process for rheo SQUEEZE
A number of heat-treated samples with the size of 15 × 15 × 15mm were selected from the successful parts.
The results show that the strength of 7075 rheo squeeze casting parts can be greatly increased by aging treatment. The
The Brinell hardness values of 7075 rheo squeeze casting samples after solution treatment at different time were counted in the
After determining 475 ℃ as the best solution temperature, four 15 × 15 × 15mm heat-treated samples were taken from
It can be seen from the metallographic structure figure 1 after solution treatment at different temperatures for 2 h that
Hardness test is the most simple and easy method in mechanical property test. In order to replace some mechanical property
The DSC thermal analysis curve of 7075 aluminum alloy was tested in the experiment. According to the thermal analysis curve,