Sand casting technology of engine connecting bearing bush
The main bearing cap of an engine has 5 pieces of integrated sand casting blanks (as shown in Figure 1), […]
The main bearing cap of an engine has 5 pieces of integrated sand casting blanks (as shown in Figure 1), […]
According to the cause of mechanical sand sticking and the actual production conditions of the company, the process improvement direction
1. Core making process of cylinder water jacket The triethylamine cold core making method is adopted, and the process parameters
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
Preheat the mold with natural gas flame, then spray paint on the surface, and raise the temperature to about 300
See Fig. 1 and Fig. 2 for the structure of box and cover. Sand castings are made of ZAlSi12 aluminum
In order to evaluate the resources and environmental load of typical sand casting process more intuitively and effectively, a comprehensive
A total of 25 planet carriers were produced in 10 batches by using the optimized casting process plan. Except for
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
After the forged knuckle is processed, it is qualified after the sample plate inspection, but after the heat treatment, it
At present, F and CQ type knuckle are forged vertically and 16D type knuckle is forged horizontally, as shown in
In order to study the action mechanism of silicon element on high silicon ductile iron, the microhardness of ferrite matrix
Tensile strength and Brinell hardness are two important indicators to evaluate the properties of nodular cast iron. The test results
The graphite morphology of ductile iron samples with different silicon content is shown in Figure 1. With reference to the
1) The riser and flesh gain of splay saddle head are relatively large. The riser must be cut hot according
The number of risers shall be determined according to the grade of steel casting quality requirements and the structure of
1. Chemical composition and mechanical properties of product materials C Si Mn P S 0.17~0.25 ≤0.60 0.8-1.2 ≤0.025 ≤0.025 Main
Test block No. C Si Mn P Cu Mo S RE Mg Y30-1 3.37 2.25 0.58 0.022 0.53 0.32 0.01
1. Selection of C and Si For wear-resistant pump body castings, the selection of C content should not only ensure
In the actual production process, it is found that the processed casting sand mold has the following two main defects:
The rapid prototyping manufacturing of mold and the pouring production of sand castings will be carried out according to the
1. Sand mold manufacturing The depth of the mold cavity is too deep during the processing of the outer mold
1. Wax mold manufacturing The deformation is controlled by adding three-dimensional support to the sand casting; By preheating PS parts
According to the process scheme optimized by previous simulation, the manufacturing process of sand casting scheme is used for sand
In the design of casting sand mold, the structure for installing cold iron is designed according to the size and
The manufacturing process of the scheme is used for the manufacturing and processing of casting sand mold, and the coated
1. Casting analysis and sand casting process selection Figure 1 shows the 3-cylinder block of passenger car. The sand casting
1. Analysis of sand casting and selection of sand casting process Figure 1 shows the chain chamber cover of passenger