Method for reducing defects on tooth surface of large cast steel gear
It is very difficult to deal with the tooth surface defects after finishing. When the precision of large cast steel […]
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Scientific
Casting simulation calculation and analysis of beam of large steel casting rotary crusher
1. Modeling Steel casting material ZG275-485; The pouring temperature is between 1550 ~ 1560 ℃, and the ambient temperature is
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Basic setting of sand casting mold template project
Open the three-dimensional model of sand casting mold template, run the processing module of UG NX software, first open the
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Analysis of casting process for crossbeam of large steel casting rotary crusher
Figure (a) shows the beam casting of the crusher (the right side of the casting is the cutting part). The
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Prediction of shrinkage cavity and porosity defects of beam of large steel casting rotary crusher
Shrinkage cavity and porosity are two common casting defects in large steel castings. They are mainly distributed in the last
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Precision casting high strength mold shell of driving wheel
4.1 water glass binder is used for coating, quartz powder is used for surface layer powder, and bauxite is used
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Optimum design of sand casting chill
The sand cast chill is directly attached to the area where the riser should not be placed. In this way,
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Overview of NC machining of sand casting mold template
Nowadays, in the sand mold manufacturing industry, the aluminum alloy formwork for casting is usually processed and manufactured by CNC
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Production test of bucket teeth of excavator
Due to the problems in the size matching of the inner cavity of the shovel head of the bucket tooth
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Smelting and casting of bucket teeth of excavator
The bucket teeth are made of resin sand, the shovel head is made of non sun casting technology, and the
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Preliminary application of investment casting in excavator
For many years, castings and forgings have been used as the product parts of ZHY Casting excavator. The new technology
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Precision casting process scheme of driving wheel
1. Determination of welding and Pouring Scheme Whether the selection of welding and pouring scheme is reasonable or not is
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Simulation results and analysis of molten metal temperature field of sand casting axle housing
The numerical simulation of temperature field is the basis and core module of ProCAST software simulation. Through the simulation of
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Sand casting process equipment
Sand casting process equipment is the general name of molds and devices used in the process of molding, core making
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Casting technology of gray cast iron for locking block of heavy lathe
1. Molding operation process In the original process (see Figure), the type is divided from one end, and the gray
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Casting technology of locking block for heavy lathe
At present, the production of heavy-duty lathe locking block has the advantages of low yield, high cost, complex on-site operation
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Prevention measures for casting defects of gray cast iron brake drum
By replacing the #3 riser with #5 riser, the height difference between riser and gray cast iron is increased from
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Heat treatment of bucket teeth of excavator
Heat treatment is mainly to change the as cast structure of bucket teeth and change the as cast martensite into
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Material of bucket teeth of excavator
Selection of bucket teeth material according to the service condition of bucket teeth, while summarizing the shortcomings of high manganese
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Manufacturing technology of bucket teeth of excavator
Excavators are widely used in mining, civil engineering, water conservancy and national defense projects. Bucket teeth are not only important
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Improvement measures of gray cast iron casting process for locking block of heavy lathe
1. Improvement of molding operation process As shown in the figure, change the original parting surface from φ 260mm center
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Control measures of sand sticking on the surface of cylinder block castings
1. Defect description The cylinder block is a horizontal horizontal pouring process (as shown in Figure 1), with complex structure
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Analysis of liquid metal filling process in gating system of semi closed sand casting
During sand casting, under the action of gravity, the liquid metal first enters the mold cavity through the sprue, enters
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Solution of hot crack casting defects
1.Improvement plan The existing tooling has been put into production, and the bottom injection process cannot be changed. Therefore, the
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Discussion on tooling design of sand casting coupling parts
When CAD and CAE technology are used to assist the design of gating and riser system of sand casting coupling
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Cause analysis of casting defects of gray cast iron brake drum
Through testing, the actual chemical composition of molten iron is: w (c) 3.35%, w (SI) 2.14%, w (MN) 0.77%, w
Scientific
Formation mechanism of hot crack casting defects
The connection opening of V-type engine body goes deep into the core, and the heat dissipation is slow. Compared with
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Defects of brake drum casting
1. Defect distribution characteristics A total of 188 castings were produced, and the semi-finished products could not be identified by
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Production technology of brake drum casting
The casting material brand of brake drum is HT250, which adopts Yingda electric furnace to melt molten iron, fcmx Xindong
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Shrinkage porosity defect of brake drum casting
A certain type of gray cast iron brake drum produced by ZHY casting has a casting weight of 6kg, a