Study on primary austenite dendrite of high strength gray cast iron
Most of the gray cast iron used in engineering belongs to hypoeutectic gray cast iron. During crystallization, this gray cast […]
Most of the gray cast iron used in engineering belongs to hypoeutectic gray cast iron. During crystallization, this gray cast […]
Due to the improvement of cast iron performance requirements in various fields, we need to study how to prepare high-performance
The output data of castings of various materials in China in 2010, including 29.5 million tons of cast iron, 9.9
Compared with ordinary carbon steel, the properties of gray cast iron have the following characteristics. (1) Low mechanical properties. The
The key to improve the mechanical properties of gray cast iron is to improve the shape, quantity, size and distribution
Compared with ordinary carbon steel, the properties of gray cast iron have the following characteristics. (1) Low mechanical properties. The
Gray cast iron is one of the most widely used cast iron. Gray cast iron is a cast iron with
With the rapid development of valve manufacturing industry, the professional production of domestic valve enterprises is becoming stronger and stronger,
The research on the lost foam casting process of gray cast iron gearbox box is studied. Firstly, the three-dimensional modeling
The effect of alloy element Mo on the thermal fatigue properties of gray cast iron was analyzed by comparing two
The effects of alloying element Mo on the microstructure and mechanical properties of high-strength gray cast iron were compared and
1.Effect of aging treatment For the engine parts of gray cast iron cylinder head, such as cylinder block, cylinder head,
Pour a positioning plate product. The maximum wall thickness of the casting is 90 mm, the minimum wall thickness is
In the process of thermal cycle, cracks caused by periodic stress due to internal temperature difference, hindered shrinkage and thermal
The microstructure characteristics of gray cast iron determine its mechanical properties. For the microstructure of gray cast iron, the finer
The modifier used in the study is jf-1 modifier. In the experiment, the composition of gray cast iron and the
By studying the changes of casting properties, metallographic structure and mechanical properties of low carbon equivalent grey cast iron under
Most gray cast iron castings can become machine parts only after turning. The turning performance directly affects the processing quality
The composition of the experimental gray cast iron and the types of inoculants added. By comparing and analyzing the effects
Adding alloying elements to cast iron can improve the strength of gray cast iron. The effects of manganese, some alloying
Adjust carbon equivalent and silicon carbon ratio. In the solidification of gray cast iron, the carbon equivalent directly affects the
The defects can not be reduced to a qualified level by adjusting the pouring temperature. Therefore, lost foam casting thin-walled
Referring to machine tool castings in the early stage, considering the factor of thin wall, the pouring temperature was increased
The lost foam casting thin-walled gray cast iron gearbox shell casting with the improved gating system is adopted. The qualification
Lost foam casting has the advantages of high dimensional accuracy, smooth surface and less pollution. Compared with the traditional molding
The hardness changes of gray cast iron after laser melting and impact at different annealing temperatures are shown in the
The nucleation and growth of gray cast iron graphite are gradually formed during heating. The nucleation position of gray cast
Gray cast iron is widely used in various mechanical parts, such as automobile ventilation plate, gear box, bed and so
The multi-element alloy additive is developed and designed by China Yituo on the basis of previous application experience according to
Developed countries carried out the research on the machinability of gray cast iron as early as the 1940s. After long-term