Analysis on the Formation of Casting Defects in Steel Castings
The structure of the steering knuckle steel casting is irregular, with a complex thin-walled structure below the parting surface, while […]
The structure of the steering knuckle steel casting is irregular, with a complex thin-walled structure below the parting surface, while […]
(1) During the mold filling process, the steering knuckle steel casting process uses sand gravity casting. Through the analysis of
Firstly, the 3D modeling software Creo2. 0 is used to model the steel casting process, and then the ProCAST software
Digital casting with computer simulation as the core has been widely used in the field of casting. With the development
1. Pretreatment before simulation After drawing the gating system, use ProCAST software to mesh the shell and select an appropriate
This product is produced using 3D printing sand molds. Therefore, 3D printing technology is fully utilized in the sand mold
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
According to the principle of conventional parting surface selection: the parting surface shall be as simple as possible, and the
The molten steel of steel castings has high melting point, poor fluidity, large shrinkage and easy oxidation. Therefore, the gating
In the past, similar steel castings used the core assembly molding, and the size of the sand core is relatively
The steel casting of splay saddle saddle head is the first suspension bridge for both highway and railway in China,
The castings without riser system were introduced into magma, and the pouring posture of the connecting flange at the top
Fig. 1 shows the current mainstream pump casing casting process. The water system is injected at the parting surface height
The dual-phase steel pump casing has the common characteristics of cast steel: high melting point, poor fluidity, large shrinkage, easy
Sand casting steel rolling stand is a typical large steel casting widely used. It is one of the important components
CB2 cast steel is a heat-resistant steel developed for 630 ℃ ultra supercritical units in the European joint research project
Based on the current manufacturing and use status of CB2 steel castings, in order to grasp the quality differences between
With the increasing requirements of environmental protection, energy conservation and emission reduction, efficient, clean and low emission ultra supercritical power
1. Brushing method Brush the clean surface to be observed with mixed lime water, and block the through-hole within the
Some box type steel castings have the functional requirements to prevent the leakage of lubricating oil in the inner cavity
1. Assign professional personnel to control production quality For enterprises, in order to obtain economic benefits, their products are required
Steel casting coating can be applied in various ways according to different site conditions and different steel castings. Through the
In view of the metallurgical quality requirements of high-quality steel castings, it is obviously incompatible to use the original smelting
In China’s casting industry in recent years, the output of steel castings has increased year by year, reaching 5.9 million
Cast steel is the steel used to make cast iron. In the case of high casting production intensity and insufficient
With the acceleration of social development in China, the production technology and level of all sectors of society have also
1. Local modulus extraction of 3D model In the production process, the riser design of steel castings conforms to the