Process optimization for reducing stress of high strength cylinder head casting
Through the above analysis, the process was optimized: the furnace holding time was extended to about 8 h, the temperature […]
Through the above analysis, the process was optimized: the furnace holding time was extended to about 8 h, the temperature […]
In the automobile axle, the front axle is mainly used for steering, also known as the front axle. In the
The structure of a 13 l cylinder head casting is shown in Figure 1, and the overall dimension of the
In order to ensure the surface quality of the casting, according to the characteristics of large wall thickness, small volume,
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
Nodular cast iron is widely used in automobile parts, such as wheel hub, differential case, bracket, steering knuckle, main cover,
The casting coating is composed of five basic components: refractory aggregate, carrier, binder, suspending agent and additives. With the development
The gating system is the channel in the sand mold to guide the molten steel into the cavity. In the
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
The results show that the cooling rate of heavy section vermicular graphite cast iron is slow and the undercooling degree
For the tensile strength of chilled cast iron camshaft, it is recommended in technical conditions for automobile engine camshaft that
1.Key points of cold depth control (1) cold iron. In the early stage of product development, according to its own
Connecting rod assembly is the most important part of turbocharger, and it needs to have high wear resistance, high working
For the internal quality of chilled cast iron camshaft casting, on the basis of controlling the chemical composition, the matrix
When the chemical composition and matrix hardness of the hot metal are controlled in the small range mentioned above, the
The control of chemical composition is the basis to ensure the casting quality of chilled cast iron camshaft. For chilled
1.Analysis of process characteristics Pancake iron castings (diameter and thickness) δ Although the shape of the casting is simple, it
The chilled cast iron camshaft uses the chilling effect of the formed chill on the high temperature molten iron to
The solidification process of liquid metal is divided into three phases: liquid phase, solid / liquid phase coexistence and solid
In the process of casting production, the traditional technology is generally designed according to the theory of sequential solidification and
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
Traditional measurement methods include manual measurement and large-scale three-dimensional scribing instrument, which have low measurement accuracy, high error rate, low
Crawler shoe is the key component of roadheader walking mechanism, which is connected by pin to form crawler shoe chain.
At present, the dimension measurement methods commonly used in large steel castings are traditional manual measurement, three-dimensional scriber and so
Commonly used lining materials are high manganese steel, low alloy wear-resistant alloy steel and white cast iron. High manganese steel
The segregation behavior of impurity elements needs to be analyzed from the aspects of solidification thermodynamics and kinetics. From the
The mill liner is used to protect the mill barrel from the direct impact and friction of the abrasive body