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Austenitic cast iron alloy used for piston ring carrier

A technology of austenitic cast iron and alloy, which is applied in the field of cast iron alloy and can solve the problems of high price and poor wear resistance

Inactive Publication Date: 2008-06-18
SHANDONG BINZHOU BOHAI PISTON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The austenitic cast iron material used in the current piston insert is a high-nickel austenitic cast iron alloy with a nickel content of 13.5-17.5%, which is relatively expensive and has poor wear resistance

Method used

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Embodiment Construction

[0007] The present invention is further described below.

[0008] There are other alloy elements in the composition of the alloy, and the total content of other alloy elements is less than 10% by mass percentage. Obviously, the amount of iron in this austenitic cast iron alloy composition should be reduced at this time.

[0009] The other alloying elements are one or more of titanium, molybdenum, vanadium and zirconium. The content of titanium, molybdenum, vanadium and zirconium in this austenitic cast iron alloy can be 0-2.5% respectively by mass percentage. Of course, other alloying elements can also be other elements suitable for alloying.

[0010] The manufacturing method of this austenitic cast iron alloy is to use an electric furnace to melt pig iron and various alloy elements together to about 1500°C to obtain molten iron, and test whether its composition meets the requirements. Then, the above-mentioned molten iron whose composition and temperature are qualified, af...

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Abstract

The invention provides an austenite casting ferroalloy used in a piston ring carrier, belong to a casting ferroalloy. According to the weight percentage, the components of the alloy are 2.0 to 3.6 percent of carbon, 1.1 to 3.5 percent of silicon, 2.8 to 9.0 percent of manganese, 1.2 to 13.5 percent of nickel, less than or equal to 0.2 percent of phosphorus, less than or equal to 0.2 percent of sulfur, 1.1 to 8 percent of copper, less than or equal to 2.3 percent of chromium and the rest is iron. The austenite casting ferroalloy used in the piston ring carrier has the advantage of good wear resistance. Through experiments, the wear volume is only about one fifth of present austenite casting material. The nickel content is low, which lowers the production cost.

Description

technical field [0001] The invention provides a cast iron alloy, especially a cast iron alloy used for a piston insert. Background technique [0002] The piston insert is generally made of austenitic cast iron, which can effectively enhance the wear resistance of the first ring groove of the piston and prolong the service life of the piston. At present, this kind of piston insert is widely used in high-performance engines. The quality of the piston ring directly affects the use of the piston and the performance of the entire engine, and the alloy material of the piston ring is the key to its performance. The austenitic cast iron material used in the current piston insert is a high-nickel austenitic cast iron alloy with a nickel content of 13.5-17.5%, which is relatively expensive and has poor wear resistance. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an austenitic cast iron alloy used for a piston insert ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C37/10
Inventor 张国华冯增建张卫东王培海高晓波魏作山
Owner SHANDONG BINZHOU BOHAI PISTON
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