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, […]
The sand cast chill is directly attached to the area where the riser should not be placed. In this way, […]
Nowadays, in the sand mold manufacturing industry, the aluminum alloy formwork for casting is usually processed and manufactured by CNC
Due to the problems in the size matching of the inner cavity of the shovel head of the bucket tooth
The bucket teeth are made of resin sand, the shovel head is made of non sun casting technology, and the
For many years, castings and forgings have been used as the product parts of ZHY Casting excavator. The new technology
1. Determination of welding and Pouring Scheme Whether the selection of welding and pouring scheme is reasonable or not is
Sand casting process equipment is the general name of molds and devices used in the process of molding, core making
The numerical simulation of temperature field is the basis and core module of ProCAST software simulation. Through the simulation of
1. Molding operation process In the original process (see Figure), the type is divided from one end, and the gray
At present, the production of heavy-duty lathe locking block has the advantages of low yield, high cost, complex on-site operation
By replacing the #3 riser with #5 riser, the height difference between riser and gray cast iron is increased from
Heat treatment is mainly to change the as cast structure of bucket teeth and change the as cast martensite into
Selection of bucket teeth material according to the service condition of bucket teeth, while summarizing the shortcomings of high manganese
Excavators are widely used in mining, civil engineering, water conservancy and national defense projects. Bucket teeth are not only important
1. Improvement of molding operation process As shown in the figure, change the original parting surface from φ 260mm center
1. Defect description The cylinder block is a horizontal horizontal pouring process (as shown in Figure 1), with complex structure
During sand casting, under the action of gravity, the liquid metal first enters the mold cavity through the sprue, enters
1.Improvement plan The existing tooling has been put into production, and the bottom injection process cannot be changed. Therefore, the
When CAD and CAE technology are used to assist the design of gating and riser system of sand casting coupling
Through testing, the actual chemical composition of molten iron is: w (c) 3.35%, w (SI) 2.14%, w (MN) 0.77%, w
The connection opening of V-type engine body goes deep into the core, and the heat dissipation is slow. Compared with
1. Defect distribution characteristics A total of 188 castings were produced, and the semi-finished products could not be identified by
The casting material brand of brake drum is HT250, which adopts Yingda electric furnace to melt molten iron, fcmx Xindong
A certain type of gray cast iron brake drum produced by ZHY casting has a casting weight of 6kg, a
1. Current situation description and cause analysis For the cylinder block developed by ZHY casting in the early stage, there
A series of cylinder block castings produced by ZHY casting are specially matched for mainstream models such as Audi, maiteng
In order to facilitate statistics, the location of crack casting defects is numbered and marked according to figure 1. Table
Place cold iron at the position where it is difficult to set the riser or where the riser is not
Figures (a) and (b) reflect the flow of liquid metal in the sand casting axle housing when the liquid metal
In sand casting, the gating system is a reserved channel in the sand mold, which is used to guide the