Process design of gating system for steel casting
The gating system is mainly composed of sprue. Molten steel enters the mold through the sprue. The sprue is divided […]
The gating system is mainly composed of sprue. Molten steel enters the mold through the sprue. The sprue is divided […]
China has also carried out numerical simulation of casting solidification since 1978. Although it started late, it has also developed
According to the position of the cold iron in the sand mold, it can be divided into internal and external.
Adding rare earth elements into gray cast iron can significantly improve the mechanical properties of gray cast iron, such as
Cold crack refers to the crack caused by the local casting stress greater than the ultimate strength of the alloy
At present, the general two-dimensional or three-dimensional CAD system has been widely used in China, especially in machinery, architecture and
At the military civilian integration development forum held in July 2015, relevant persons from the Bureau of science, technology and
Nodular cast iron is a spheroidal graphite cast iron obtained by spheroidization and inoculation. From the aspect of production, the
As a high-efficiency inoculant, rare earth has always occupied an important position in the application of inoculant, mainly because it
The cast track shoe of tractor is the most easily worn part on tractor and bulldozer. Its working conditions are
Ordinary gray cast iron is a kind of material with low price and wide application. Due to its poor corrosion
The selection of rare earth inoculated gray cast iron process depends on the addition method of inoculant, mainly including in
The main defects in the trial production of hook body and hook tongue parts are crack, air hole, sand inclusion
The basic technological process of trial production of railway steel castings is introduced, the final technological scheme (serving the mass
By measuring the microstructure and mechanical properties of low carbon equivalent grey cast iron treated by different processes, the mechanism
The soul of gray cast iron is graphite. To study the properties of gray cast iron materials, we mainly study
From the solidification volume change model of nodular iron castings, we can get the following measures to guide the process
By measuring the casting properties of low carbon equivalent gray cast iron treated by different processes, the following conclusions are
The strength of gray cast iron mainly depends on graphite and matrix structure. With the increase of carbon equivalent, the
Nodular cast iron belongs to multi-element alloy, and the main influencing elements are Fe, C and Si. Its as cast
In the experiment, the medium frequency coreless crucible induction furnace is selected for the melting of gray cast iron. The
Although the wet mold clay sand has good concession and refrigeration, crack defects still appear from time to time in
By studying the changes of casting properties, metallographic structure and mechanical properties of low carbon equivalent grey cast iron under
Nodular cast iron is a widely used cast iron material at present. Because of its good mechanical properties, relatively simple
The shrinkage porosity and shrinkage cavity defects in the production of Wet Mold clay sand steel castings are mainly related
Spheroidized elements usually have the following common properties: (1) The solubility of elements in molten iron is low and the
Since the 1980s, the rare earth industry has developed rapidly. Whether abroad or at home, the application technology of rare
Gray cast iron has low cost, low price and wide application. It has always accounted for a large proportion in
Surface sand sticking defect refers to the adhesion of a layer of sand particles on the surface of steel castings
Sand inclusion defects are surface defects of wet molding clay sand expansion, which mainly appear on the upper and side