Process design of riser system for steel castings
After molten steel enters the mold, it will produce shrinkage porosity and shrinkage cavity due to liquid shrinkage, solidification shrinkage […]
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Effects of different inoculants on cutting properties of high strength gray cast iron
In the process of gray cast iron cutting experiment, the measurement cycle is very short, the cutting length of the
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Process design of gating system for steel casting
The gating system is mainly composed of sprue. Molten steel enters the mold through the sprue. The sprue is divided
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Numerical simulation technology of casting process in China
China has also carried out numerical simulation of casting solidification since 1978. Although it started late, it has also developed
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Process design of cold iron for steel castings
According to the position of the cold iron in the sand mold, it can be divided into internal and external.
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Rare earth elements improve the properties of gray cast iron
Adding rare earth elements into gray cast iron can significantly improve the mechanical properties of gray cast iron, such as
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Primary surface inspection for mass production of railway steel castings
Before the mass-produced coupler products are finally put into storage, they need to go through one preliminary surface inspection, two
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Formation of casting defects in railway steel castings
Cold crack refers to the crack caused by the local casting stress greater than the ultimate strength of the alloy
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Countermeasures for sand casting defects of steel castings
According to the above casting defect analysis and countermeasures, a new process diagram is finally formed, as shown in Figure
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Casting process CAD system
At present, the general two-dimensional or three-dimensional CAD system has been widely used in China, especially in machinery, architecture and
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Analysis of production defects in sand casting of steel castings
(1) The section diagram corresponding to the casting defect I is shown in Figure 1. The casting defect I occurs
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Production verification of sand casting of steel castings
1.Mold making and trial production According to the designed process drawing and tooling drawing, the die quotation is carried out.
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Test of mechanical properties of gray cast iron
1.Sample preparation The tensile strength of low carbon equivalent gray cast iron was measured by hydraulic universal tensile testing machine.
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Steel casting market of military aircraft
At the military civilian integration development forum held in July 2015, relevant persons from the Bureau of science, technology and
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Effect of normalizing temperature on Microstructure and mechanical properties of nodular cast iron
Nodular cast iron is a spheroidal graphite cast iron obtained by spheroidization and inoculation. From the aspect of production, the
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Comparison of graphite morphology of gray cast iron
Comparing the graphite morphology of low carbon equivalent gray cast iron treated with different rare earth addition, it can be
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Damage detection and casting defect statistics of typical four branch cast steel joints
As shown in Figure 1, because the shape of casting defects in the node is irregular, the maximum value of
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Inoculation effect of rare earth in cast iron
As a high-efficiency inoculant, rare earth has always occupied an important position in the application of inoculant, mainly because it
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Abrasive wear characteristics of tractor cast track shoes
The cast track shoe of tractor is the most easily worn part on tractor and bulldozer. Its working conditions are
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Effect of rare earth elements on Microstructure and properties of low carbon equivalent gray cast iron
Ordinary gray cast iron is a kind of material with low price and wide application. Due to its poor corrosion
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Tensile strength of gray cast iron
In the experiment, the molten iron of the same furnace is used to prepare gray cast iron according to the
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Effect of different inoculants on Microstructure of high strength gray cast iron
The strength of gray cast iron depends on the type of graphite and matrix structure in its microstructure. When the
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Flaw detection in casting workshop of mass production of railway steel castings
The flaw detection in the casting workshop mainly detects the superficial cracks of steel castings after pre normalizing and air
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Rare earth inoculation treatment of gray cast iron
The selection of rare earth inoculated gray cast iron process depends on the addition method of inoculant, mainly including in
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Formation of hot crack defects in railway steel castings
The main defects in the trial production of hook body and hook tongue parts are crack, air hole, sand inclusion
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Design of gating system in sand casting
Draw the process drawing of sand casting according to the processing quantity and riser calculated before. Refer to attached Fig.
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Casting property test of gray cast iron
1.Liquidity test As shown in Figure 1, the experimental fluidity test adopts the method of single helix wet sample. The
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Analysis and optimization of casting defects in trial production of railway steel castings
The basic technological process of trial production of railway steel castings is introduced, the final technological scheme (serving the mass
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Effect of rare earth inoculation on metallographic structure of gray cast iron
By measuring the microstructure and mechanical properties of low carbon equivalent grey cast iron treated by different processes, the mechanism
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Graphite structure of gray cast iron
The soul of gray cast iron is graphite. To study the properties of gray cast iron materials, we mainly study