Quality control measures for inner cavity of cylinder water jacket
1. Current situation description and cause analysis For the cylinder block developed by ZHY casting in the early stage, there […]
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
(1) Design and selection of top riser (Fig. 1) After the mold filling, the molten iron on the top of
According to the diameter, wall thickness and inspection requirements of the main shaft hole of the wheel hub, the pouring
Crack is one of the most dangerous casting defects of engine gray cast iron. Undetected cracks will expand and extend
There are two process schemes of low-temperature fast casting and high-temperature slow casting for nodular iron castings of wind power
The nodular iron castings of wind power wheel hub belong to thick and large section castings, especially the thickness of
With the deepening understanding of the environment around the world and the maturity of renewable energy comprehensive utilization technology, the
Figure (a) is a real-time screenshot when the molten metal just fills the sprue at the beginning of pouring and
Through the testing of the original investment casting prototype, it is found that there are shallow cracks at the intersection
The blank size of coupler parts is large, and the outline is 594mm × 370mm × 350mm, which is a
The sand casting structure of coupling parts is often simpler than that of finished parts, because many structures of finished
It can be seen from Fig. 1 and Fig. 2 that the inner cavity of the casting of the electro-hydraulic
It can be seen from Figure 1 that the structure of the electro-hydraulic valve body casting is complex, the wall
(1) there are two slender oil passages in the casting of electro-hydraulic valve casting, and it is difficult to form
The casting structure of the electro-hydraulic valve casting is complex (as shown in Figure 1), with two slender and curved
Electro hydraulic valve casting is a kind of hydraulic control element. Its control pressure is much higher than that of
The coupler casting scheme adopting the gating system of scheme B is trial cast. The appearance of the trial cast
After solidification of investment casting in scheme a, there is shrinkage tendency, as shown in Fig. 1 (a), which is
In the solidification process of investment casting, the appearance, thin shoulder and thin-wall area of investment casting in scheme a
During the mold filling process of investment castings in gating system scheme a, the metal liquid flows from the sprue
Coupler is the connecting device of rail vehicles. It needs to ensure that the connected carriages at both ends do
The chemical composition of molten metal is detected in front of the furnace, and the results are shown in Table
Sand casting process parameters mainly include dimensional tolerance, linear shrinkage, draft angle and other aspects. The determination of these process
By designing the test device by pouring method, the thermophysical parameters of glass quartz sand used in actual sand mold
At the place where the upper and lower cores form a diaphragm, chromite ore sand is used to replace ordinary