Experimental process of sand sticking on the surface of engine cylinder block in sand casting
Several typical thin-walled engine block sand castings such as ea188 were selected and formed by wet sand casting process. Experimental […]
Several typical thin-walled engine block sand castings such as ea188 were selected and formed by wet sand casting process. Experimental […]
Molybdenum is an element with strong affinity with carbon, which is conducive to the formation of the second phase particles
In production practice, the length of casting pouring time is directly related to many quality factors of castings. For example,
According to the different matrix structure, it can be divided into ferrite matrix gray cast iron, pearlite ferrite matrix gray
Gray cast iron has good casting process and mechanical properties, excellent wear resistance, vibration damping and thermal conductivity, and low
The surface quality of sand castings not only affects the appearance of non machined surface parts of products, but also
In order to obtain high-quality sand castings, both at home and abroad pay great attention to the design of gating
1.Effect of the amount of suspending agent on the properties of spray casting coating Based on the basic research and
Graphite parameters such as type, content and length in gray cast iron have an important influence on its tensile strength.
1.Raw materials and instruments 1.1 Raw materials White corundum [M (Al2O3) ≥ 99%], attapulgite, CMC (sodium carboxymethyl cellulose), PVA (polyvinyl
Fig. 1 shows the scanning electron microscope BSE photos of gray cast iron samples with different molybdenum content. It can
Lost foam casting is based on foam model, using non binder dry sand vibration modeling, negative pressure pouring, high temperature
With the development of the casting industry, the casting coating also began to change from the traditional alcohol-based casting coating
Figure 1 and Figure 2 show the microstructure of gray cast iron corroded by 4% Vol. nitric acid alcohol under
In the manufacturing process, due to the characteristics of complex structure, large volume and many cavities and holes, the casting
Based on the fact that the magnitude and direction of the stress formed by the solidification of bearing Babbitt alloy
Figure 1 shows the graphite morphology of samples S1 ~ S4 in Table 1 observed under scanning electron microscope. According
HT250 and HT200 gray cast iron are made of lost foam casting and clay sand casting to improve the tensile
In the field of manufacturing feature recognition, the early research usually only considers that all the shapes and functional structures
At present, bearings at home and abroad adopt the structure that the joint surface of bearing bush body and bearing
The following contents are mainly studied: the influence rules and mechanisms of different inoculation treatments on the microstructure, mechanical properties
HT250 finished brake hub produced by ZHY casting is melted in cy-sp35-vim temperature controlled high frequency induction furnace, argon is
The microstructure of primary austenite after heat treatment of four kinds of experimental gray cast iron is shown in the
Babbitt alloy casting process route of bearing bush: preparation → tile body preheating → tile blank tin lining → mold
Gray cast iron wheel hub is one of the important parts of heavy-duty truck. When heavy-duty truck travels down the
At present, many measures to improve the strength of gray cast iron often have an adverse impact on its machinability.
Modification is a method of adding a small amount of elements or their compounds to the molten metal to control
Gray cast iron is a low-cost material. It has good thermal conductivity, good mechanical properties and wear resistance due to
There are many factors affecting the formation of quenching cracks in steel parts, mainly including metallurgy, structure, technology and so
Sliding bearing plays a supporting role in the operation of the motor, bears the radial load and ensures the high-speed