Effect of rare earth inoculation on metallographic structure of gray cast iron
By measuring the microstructure and mechanical properties of low carbon equivalent grey cast iron treated by different processes, the mechanism […]
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
Four kinds of inoculants were selected in the experiment, which were 75sife, SRSI, basi, sisR (80%) and 75fesi (20%) composite
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
The modification effect of gray cast iron is affected by many factors, such as type, composition, size and oxidation degree
In the experiment, the medium frequency coreless crucible induction furnace is selected for the melting of gray cast iron. The
50KW medium frequency induction furnace was used for smelting in the test, with 25 kg charge per group.Proportioning principle: proportioning
The comparative experiment of cutting performance of gray cast iron was carried out on CA6140 lathe, and the nsdn-45 °
By studying the changes of casting properties, metallographic structure and mechanical properties of low carbon equivalent grey cast iron under
1.Charge The quality of furnace charge mainly depends on the content of trace elements in raw materials. The trace elements
1.Interaction between rare earth and sulfur Sulfur can cause “hot brittleness” of cast iron during smelting of gray cast iron
The microstructure of metallographic samples of gray cast iron after polishing and corrosion was analyzed. The graphite morphology is shown
Gray cast iron has low cost, low price and wide application. It has always accounted for a large proportion in
1.The designed and manufactured three-dimensional force mounting calibration device can calibrate the stress-strain system simply, quickly and accurately when measuring
The mechanical properties of samples melted and poured with different pig iron are shown in the table. It can be
With the development of industrial technology, the performance requirements of gray cast iron are higher and higher in various fields.
For the wear test of gray cast iron cutting tools, DWC CO (YG) cemented carbide standard tools are used, and
In the process of gray cast iron cutting experiment, the measurement cycle is 20 s, the cutting length of the
The effects of alloy elements Cu, Cr and multi alloy additives on the microstructure and properties of gray cast iron
The graphite morphology of the two gray cast iron samples is shown in Figure 1. It can be seen from
In recent years, many studies have been carried out on the evaluation of cutting performance of materials by cutting force
The multi-element alloy additive is designed according to the research results at home and abroad on the influence of Alloying
The composition and melting process of gray cast iron used in this experiment are jointly optimized and designed by our
In the process of gray cast iron cutting experiment, the measurement cycle is 20 s, the cutting length of the
There are many factors affecting the cutting performance of gray cast iron in actual production, which are generally analyzed from
Due to the existence of graphite in common gray cast iron, and the tensile strength of graphite is almost zero,
At present, in order to make gray cast iron achieve high strength, excellent casting performance and processability, casting engineers at
By adding different content of copper and different ratio of copper and chromium, the mechanical properties and cutting properties of
The machinability of materials refers to the difficulty of cutting the excess part of materials to obtain qualified parts. Therefore,