Selection of gating system for sand casting axle housing
The gating system is the channel to guide liquid metal into the mold cavity in sand mold. Its structure is […]
The gating system is the channel to guide liquid metal into the mold cavity in sand mold. Its structure is […]
Numerical simulation is a method that uses the correspondence between different things to verify measures. Numerical simulation is irreversible. Casting
Casting process parameters mainly include dimensional tolerance, linear shrinkage, draft angle and other aspects. The determination of these process parameters
Generally speaking, the higher the pouring temperature is, the better the fluidity of alloy liquid is, and the more favorable
For sand mold casting, in order to realize sand molding, mold taking, pouring riser setting and sand core installation, the
The pouring position usually refers to the position of the axle housing in the mold when pouring. The pouring position
For cast steel, the main raw materials include scrap steel, ferrosilicon, manganese iron and aluminum alloy deoxidizer, and the main
(1) Scrap steel is the main raw material for casting smelting. Two samples are randomly selected from each batch for
Air tightness test, also known as sealing test, is an important indicator to judge whether there is internal defect in
The structural types of axle housing can be roughly divided into three types: open type, integral type and combined type.
In order to verify the feasibility of casting process, the sample of open axle housing was trial produced according to
After adding riser and chill to the gating system, mesh division, casting parameters setting and pouring process simulation calculation are
Taking the tractor split axle housing as the research object, the paper firstly analyzes the process of the overall structure
The cold iron is directly attached to the area where the riser is not suitable. Because of the chilling effect
The ratio of the volume of the axle housing divided by the heat transfer surface area is called the solidification
As the key part of tractor, the main research contents are as follows: firstly, analyze the process of axle housing
Shrinkage cavity is a common casting defect, which is essentially a volume defect. According to the causes, it can be
Simulation and analysis of temperature field in closed gating system of axle housing The simulation of temperature field is shown
During pouring, under the action of gravity, the molten metal first enters the cavity through the sprue, enters the runner
Figures (a) and (b) show the flow of the liquid metal in the bridge shell when the metal liquid fills
A certain type of broken axle housing of a company is mainly used for tractor load-bearing bridge, with an annual
Figure (a) is the real-time screenshot of the molten metal just filling the runner at the beginning of pouring, and
In order to predict and confirm the location, size and range of shrinkage defects in the pouring and feeding system
Setting of sand mold material parameters When sodium silicate molding sand is used in production, it can be replaced by
During the solidification of hot metal, the liquid and solid state of most metals exist together most of the time.
Generally, the thermal conductivity of metal is related to the temperature and chemical composition of molten steel, which is generally
The numerical model of axle housing is established by Creo software and saved in. STP format. The STP file is
Using ProCAST through The computer numerical simulation software is used to simulate the gating system of the axle housing. The
Semi closed gating system is adopted, and the proportion is as follows: Σ a inside: ∑ a transverse: ∑ a
The open gating system is adopted, and the proportion is as follows: Within Σ A: ∑A transverse: ∑A straight =