Eutectic aluminum silicon alloy piston material of vehicle engine

A vehicle engine, eutectic aluminum-silicon technology, applied in engine components, machines/engines, pistons, etc., can solve the problems of piston engine pistons that cannot adapt to load and performance, cracking of combustion chamber ports, and broken ends of models, and achieve thermal expansion. Small coefficient, promoting heterogeneous nucleation and excellent high temperature performance

Inactive Publication Date: 2012-09-19
TIANJIN LIZHONG ALLOY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the traditional alloy grades such as ZL109, which are still widely used in the domestic industry, can no longer meet the requirements of the newly developed higher load and performance pistons, especially the high-performance vehicle engine pistons. In recent years, broken heads or Cracked combustion chamber port

Method used

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  • Eutectic aluminum silicon alloy piston material of vehicle engine
  • Eutectic aluminum silicon alloy piston material of vehicle engine
  • Eutectic aluminum silicon alloy piston material of vehicle engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] (1) According to mass percentage Si: 12.3%, Cu: 4.2%, Mg: 0.8%, Ni: 2.8%, Zr: 0.060%, V: 0.060%, P: 0.010%, Al is the balance, weighed for remelting Aluminum ingots, magnesium ingots for remelting, industrial silicon, electrolytic copper, pure nickel plates and AlV5 (aluminum-vanadium master alloy), AlZr10 ((aluminum-zirconium master alloy), AlP3 (aluminum-phosphorus master alloy); industrial silicon is broken Good 1~5cm 3 small pieces;

[0058] (2) Take the sodium-free refining agent by 0.15% of the total feeding mass;

[0059] (3) Put the industrial silicon, electrolytic copper, magnesium ingot for remelting, pure nickel plate, AlV5, AlZr10, ALP3, aluminum ingot for remelting and sodium-free refining agent in step (1), step (2) into the temperature Dry in a constant temperature preheating drying oven at 250°C for 3 hours;

[0060] (4) Put the dried industrial silicon, pure nickel plate, and aluminum ingot for remelting in step (3) into the CX-GR-150 industrial elec...

Embodiment 2

[0071] (1) Si: 12.5%, Cu: 4.4%, Mg: 0.8%, Ni: 3.0%, Zr: 0.065%, V: 0.065%, P: 0.010%, based on the mass percentage of the alloying elements in the aluminum-silicon alloy , and Al is the balance, respectively weigh the industrial silicon, electrolytic copper, magnesium ingots for remelting, pure nickel plate, AlV5, AlZr10, aluminum ingots for remelting and AlP3 master alloy; wherein industrial silicon is crushed 1 ~5cm 3 small pieces;

[0072] (2) Weigh the sodium-free refining agent according to 0.15% of the total feeding mass in step (1);

[0073] (3) Put the industrial silicon, electrolytic copper, magnesium ingot for remelting, pure nickel plate, AlV5, AlZr10, AlP3, aluminum ingot for remelting and sodium-free refining agent in step (1), step (2) into the temperature Dry in a constant temperature preheating drying oven at 250°C for 3 hours;

[0074] (4) Put the dried industrial silicon, pure nickel plate and aluminum ingot for remelting in step (3) into the industrial el...

Embodiment 3

[0084] (1) According to mass percentage Si: 12.5%, Cu: 4.0%, Mg: 0.9%, Ni: 3.0%, Zr: 0.07%, V: 0.07%, P: 0.014%, Al is the balance, and remelted Aluminum ingots, magnesium ingots for remelting, industrial silicon, electrolytic copper, AlNi20 (aluminum-nickel master alloy), AlV5 (aluminum-vanadium master alloy), AlZr10 ((aluminum-zirconium master alloy), AlP3 (aluminum-phosphorus master alloy); Industrial silicon is crushed 1~5cm 3 small pieces;

[0085] (2) Take the sodium-free refining agent by 0.16% of the total feeding mass;

[0086] (3) Put the industrial silicon, electrolytic copper, magnesium ingots for remelting, AlNi20, AlV5, AlZr10, AlP3, aluminum ingots for remelting and sodium-free refining agent in step (1) and step (2) at a temperature of 250°C Dry in a constant temperature preheating drying oven for 2 hours;

[0087] (4) Put the dried industrial silicon and aluminum ingots for remelting in step (3) into the CX-GR-150 industrial electric furnace, and set the te...

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Abstract

The invention provides a eutectic aluminum silicon alloy piston material of a vehicle engine. On the basis of ZL109 alloy, the novel eutectic alloy material with high strength and low thermal expansion coefficient can be prepared by adjusting the alloy composition and adding trace elements such as V, Zr and P. The eutectic aluminum silicon alloy has the characteristics of being excellent in high-temperature property, high in hardness, low in thermal expansion coefficient, good in wear resistance and the like, thus being better in accordance with the requirements of the high-performance vehicle engine.

Description

technical field [0001] The invention belongs to the field of non-ferrous metal material preparation technology and metamorphic treatment process, and in particular relates to a eutectic aluminum-silicon alloy piston material for a vehicle engine. Background technique [0002] The piston is the heart of the engine, it bears alternating mechanical and thermal loads, and is one of the key components in the engine with the worst working conditions. Working under the condition of high temperature, high pressure and high speed determines the working efficiency of the engine, so the piston alloy is required to have better volume stability and higher high temperature strength. The continuous improvement of engine performance has led to a significant increase in the working load of the piston, thus putting forward higher requirements on the performance of the piston, especially the high temperature performance, and the piston material is the first to bear the brunt. [0003] At pres...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/04F02F3/00F16J1/01
Inventor 黄海军李志琴田红杰霍会娟
Owner TIANJIN LIZHONG ALLOY GROUP
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