Cast aluminum alloy material for mine-used parts

Abstract

The invention discloses a casting aluminum alloy material for a mine-used part, which relates to a casting aluminum alloy material. An aluminum alloy part used in underground coal mines can generate spark due to collision or friction to fire gas and result in explosion accidents. At present, aluminum equipment is forbidden under the coal mines or within 300 meters of an extraction face with hazardous biogases by many countries. The components in percentage by weight of the invention are: 1.0 to 2.5 percent of Zn,3.0 to 5.5 percent of Cu,0.1 to 0.3 percent of Cr,0.1 to 0.2 percent of Ti,0.02 to 0.05 percent of Be,0.01 to 0.03percent of Sr,0.3 to 0.8percent of Mn, 2.5 to 4.5 percent of Rx,less than or equal to 1.5 percent of Si, less than or equal to 0.5 percent of Mg,less than or equal to 0.5 percent of Fe, the balance being Al. The casting aluminum alloy material has the advantages of good safety of frictional spark, low density, good plasticity and corrosion resistance, etc.

Description

Cast aluminum alloy material for mining parts Technical field The invention relates to a cast aluminum alloy material, in particular to a friction-free spark-free safe cast aluminum alloy material for parts such as mine fans. Background technique Parts made of aluminum alloy, such as local ventilators, portable electric drills, wind coal drills, and electrical equipment casings in coal mines, have caused many accidents due to sparks caused by impact or friction. Therefore, foreign developed countries have long been studying the safety of light alloy materials used in mines, but no breakthrough has been made so far. At present, many countries have banned the use of equipment made of light alloys in coal mines or within 300m of the mining face with biogas danger. my country has also made strict regulations on the use of light alloy materials in underground mines: the sparks generated by impact or friction of light alloy materials (such as ZL401GB / T1173-1995) are most likely to ig...

AI Technical Summary

Problems solved by technology

The purpose of the present invention is to provide a casting aluminum alloy material for mining parts, which has a stable and advanced chemical formula, and is safe for friction and sparks, in view of the disadvantage that the parts made of the existing aluminum alloy materials for mining are easy to ignite gas and cause explosion accidents. Good performance, low density, good plasticity, corrosion resistance, etc.

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