Composition requirements of main casting accessories for sand casting axle housing
For cast steel, the main raw materials include scrap steel, ferrosilicon, manganese iron and aluminum alloy deoxidizer, and the main […]
For cast steel, the main raw materials include scrap steel, ferrosilicon, manganese iron and aluminum alloy deoxidizer, and the main […]
During the production of lzqt600-3 ductile iron profile, due to its inherent process characteristics, the molten iron after spheroidizing treatment
(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
The structural design of the axle housing can be roughly divided into the following aspects: the functional design of the
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
At present, most companies use sodium silicate sand mold casting and V-method casting process for production. In view of the
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
Since the 21st century, solidification numerical simulation technology has been developing continuously, and it is in the stage of optimization
Simulation and analysis of temperature field in closed gating system of axle housing The simulation of temperature field is shown
In foreign countries, the analysis unit of “heat and mass flow analyzer” of Columbia University was first used in casting
During pouring, under the action of gravity, the molten metal first enters the cavity through the sprue, enters the runner
Casting belongs to liquid metal forming technology. In actual production, casting engineers often make process according to previous experience, and
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
Several tensile test bars with the sizes of Φ 7mm × 90mm, Φ 12mm × 100mm and Φ 17mm ×
Figure (a) is the real-time screenshot of the molten metal just filling the runner at the beginning of pouring, and
Several samples with diameter of 7 mm are taken from the Φ 50 mm ductile iron test bar for isothermal
In order to predict and confirm the location, size and range of shrinkage defects in the pouring and feeding system
The as cast microstructure of ductile iron with modulus Ms = 1.25cm is 6.0% pearlite + 94.0% ferrite. Several samples
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.
The chemical composition of cast high strength and high toughness locking ring steel for dredger was studied. The lock ring
(1) With the increase of casting modulus MS, on the one hand, the amount of graphite precipitation in nodular iron