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
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
(1) Ductile iron samples with silicon content of 2.9%~4.6% were prepared by EPC process, and the matrix structure was ferrite.
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
Decarburization is the loss of carbon from the surface or near-surface layers of a material during heat treatment. It can
1) The riser and flesh gain of splay saddle head are relatively large. The riser must be cut hot according
The upper surface of the steel casting is easy to produce defects such as sand holes, air holes and slag
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
In recent years, Austempered ductile iron (ADI, CADI) has made great progress in the selection of grinding ball materials due
