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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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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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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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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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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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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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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Process optimization of sand casting brake disc
With the introduction of a large number of social cars, the demand for this kind of consumption parts of the
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Advantages and disadvantages of sand casting and lost foam casting
1 Advantages of lost foam casting (1) In the casting process, there is no need to lower the core, and
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Filling velocity equation of sand casting for machine bed
Sand casting is a casting method in which the metal liquid fills the mold cavity under the action of gravity.
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Study on the casting technology of nodular cast iron
The service performance of nodular cast iron is mainly determined by the microstructure and casting defects, among which the microstructure
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Solidification simulation analysis and process optimization of pump valve castings in sand coated iron mold
In the process of solidification and cooling of sand-clad iron mold casting for pump valve castings, there are many cores
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Classification and materials of crankshaft castings
As the core part of internal combustion engine, crankshaft plays an important role. Due to the different number and size
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Properties and characteristics of grey cast iron
Gray cast iron characterized by flake graphite has certain strength, hardness, modulus of elasticity, shock absorption, wear resistance and thermal
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Control of oxygen and sulfur elements in the casting process of nodular cast iron
Oxygen and sulfur are the main surface active elements, which have an important influence on the change of graphite base
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Application of furan resin in large gray iron castings
Furan resin can be divided into urea formaldehyde furan resin, phenol urea formaldehyde furan resin, formaldehyde sugar alcohol resin and
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Foundry technology design of iron mould sand covering for pump valve casting
Pump valve is a kind of equipment basic component with large quantity, wide range and various varieties, which is widely
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Time-varying meshing stiffness of hypoid gears of automobile drive axle
The transmission error of gear motion is the main excitation of gear vibration energy. In most gear equipment, it will
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Effect of mold condition on shrinkage tendency of castings
The effect of mold conditions on the shrinkage tendency of castings is mainly due to mold wall expansion. On the
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The effect of molten iron temperature on the control of preshrunk process of large castings
The control of molten iron temperature is generally divided into two aspects: one is the control of molten iron temperature,