Production inspection of ductile cast iron casting
1. Chemical composition detection The ARL3460 direct-reading spectrometer is used for chemical composition detection. The results of chemical composition detection […]
1. Chemical composition detection The ARL3460 direct-reading spectrometer is used for chemical composition detection. The results of chemical composition detection […]
1. Improvement of cavity arrangement process As shown in the figure, the improved ductile iron casting process changes the original
Figure 1 shows the flange bonnet casting with blocked feeding channel. There are shrinkage defects at A and B of
1. Analysis of cavity layout process The ductile iron casting process (see Figure) is divided from one end. All the
Figure 1 shows the location of shrinkage porosity in a casting. See Figure 2 for the process plan before improvement.
At present, the nut of testing machine produced by our company is easy to produce shrinkage cavity and porosity defects,
In recent years, there have been several innovations in grey cast iron production aimed at improving both quality and efficiency.
The sand casting surface obtained from the test is complete, but shrinkage cavities are found at the bearing holes of
Preheat the mold with natural gas flame, then spray paint on the surface, and raise the temperature to about 300
According to the casting structure and sand casting process, the metal mold for the box and cover is designed. The
See Fig. 1 and Fig. 2 for the structure of box and cover. Sand castings are made of ZAlSi12 aluminum
A. Cost problem: Although the as-cast high-performance ductile iron has less heat treatment than ADI castings, and has certain economic
In mechanical products with relatively small load but light weight requirements, aluminum alloy gearbox is a good choice. The problems
The casting simulation software was used to simulate the mold filling and solidification process of the balance shaft support. Figure
According to the comprehensive evaluation results of typical sand casting processes, for the static pressure casting process and V method
Sand casting has different types such as wet sand casting process and non clay sand casting process. The static pressure
The diesel engine structure for combat vehicles is V-shaped and symmetrical, and the left and right cylinder head castings are
In order to evaluate the resources and environmental load of typical sand casting process more intuitively and effectively, a comprehensive
Based on the above sand casting process analysis, there are many kinds of materials involved in the sand casting production
Sand casting is a kind of molding method that molten metal into flowing liquid alloy, then burned into the sand
A total of 25 planet carriers were produced in 10 batches by using the optimized casting process plan. Except for
It is found that only a small amount of shrinkage porosity occurs at the inner runner when observing the inside
(1) Ductile iron castings have large overall dimensions, high requirements for size and wall thickness control, large wall thickness difference,
(1) The casting process plan determines that the casting adopts the whole sample sand box molding production mode. According to
First of all, it is necessary to conduct solid modeling and mesh division, and then set parameters. This is the
Shrinkage cavity and shrinkage porosity are common defects in sand casting production. The main purpose of numerical simulation of sand
In order to cut the area with casting defects in the casting diaphragm, it is necessary to first understand the
During the operation of the unit, the left and right sides of the casting diaphragm will produce stress under different
In order to analyze the stress and deformation of casting diaphragms before and after repair welding, a three-dimensional solid model
After the forged knuckle is processed, it is qualified after the sample plate inspection, but after the heat treatment, it