Failure analysis of high chromium cast steel liner of ball mill
Ball mill is the key equipment for grinding materials. It is widely used in silicate products, such as new building […]
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Solve the development problems of foundry industry
Since the 12th Five Year Plan, China’s foundry industry has continued to develop steadily, but its growth rate has slowed
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750 large ductile iron pump body casting production
ZHY casting once produced 750 large-scale nodular cast iron pump body for customers. Figure 1 shows the casting drawing. The
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Unstable factors of casting process quality in valve manufacturing process
Casting refers to the process of heating the cast metal to the molten state to meet the requirements of certain
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Formation of shrinkage cavity and porosity in valve casting
Formation of casting shrinkage cavity and shrinkage cavity during the solidification process of liquid metal in the mold, due to
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Comparison of corrosion resistance between nodular cast iron and gray cast iron
The mass fraction of carbon in iron is higher than 2%, while that of silicon is between 1% and 3%.
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Melting, casting and heat treatment of high chromium cast steel liner
1 Smelting process First, scrap steel and pig iron are added to the 500 kg acid intermediate frequency electric furnace
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Material design of high chromium cast steel liner
At present, the chemical composition of the mainstream high chromium cast iron at home and abroad are: carbon 2.4% –
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Development of machine tool castings in China
The progress of machine tool casting in China in the past 30 years can be seen in China International Casting
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Technology research and effect comparison of lost foam casting and sand casting
Lost foam casting and sand mold casting are two major processes in the foundry industry. They have both advantages and
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Sand casting technology of large bearing pedestal
In power station, petrochemical industry, metallurgy, ship industry and equipment manufacturing industry, there are large-scale bearing pedestal applications, such as
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Quality instability factors in valve manufacturing process
There are not many components of the valve, ranging from several to dozens. These parts are generally divided into metal
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Shrinkage of cast alloy and factors affecting shrinkage
1.Shrinkage in the process of solidification and cooling, the reduction of volume and size is called shrinkage. Shrinkage is the
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Aging treatment of machine tool casting to eliminate casting stress
The advantages and disadvantages of machine tool casting are closely related to the machine tool industry and machinery manufacturing industry
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Development of high wear resistance and high chromium cast steel liner
The ball mill for cement industry mainly uses two kinds of wear-resistant products, namely grinding ball and lining plate. In
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China’s steady and rapid economic growth needs high-quality machine tools
With the development of China’s economy, automobile, energy, ship, aviation, railway and other fields which are closely related to the
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Application of 3D printing in Foundry Technology
1 Rapid investment casting Investment casting, also known as “lost wax casting”, has a long history in China. It is
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Casting fluidity of casting alloy
Pure metals are rarely used in casting production, and various alloys are generally used. In addition to the mechanical properties,
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Wear surface morphology and wear mechanism of high chromium cast steel liner of ball mill
Micro morphology of worn surface The metallographic structure of the wear surface of the high chromium lining plate was observed
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Classification of graphite distribution in grey cast iron
Graphite in grey cast iron is flaky, and its distribution shape can be divided into a, B, C, D, e
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Mechanical properties of high chromium cast steel liner
The test results show that the microstructure of the high chromium cast steel is: tempered martensite + eutectic carbide +
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Quality prediction of crankshaft casting
Through the numerical simulation software, the temperature field of the casting solidification process can be determined, and the isotherm and
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Welding repair of nodular iron castings
The graphite of ball milled cast iron exists in the form of spheroid, which reduces the cleavage effect on the
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The basic types and characteristics of the casting and molding pouring system for crankshaft casting
There are many types of gating system. For each kind of casting, it is necessary to design or select its
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Problems of lost foam casting process in China
1 The core casting equipment technology has been stagnated for a long time in China (1) The performance of the
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Sand casting process core head
The shape and size of core head have a great influence on the processability and stability of core in mold
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Precautions in the purchase of casting coating
Attention shall be paid to the following items when purchasing casting coating: (1) Different materials of castings correspond to different
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Improvement of spheroidizing method in the casting process of nodular cast iron
In the production process of nodular cast iron, a certain amount of additives should be added to the molten iron
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The important role of adjusting sand mold temperature in large gray iron casting
In order to adjust the sand temperature, the air temperature must be considered. Although the curing reaction of resin sand
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High temperature alloy investment casting technology
High temperature alloy precision casting is widely used in advanced weapon equipment, such as turbine case of aircraft engine, interstage