A kind of titanium bronze alloy material and its preparation method and application

Abstract

The invention relates to a titanium bronze alloy material, which comprises the following components in mass percentage: 5-7% of titanium, 0.8-1.5% of aluminum, 0.1-0.3% of silver, 0.2-0.4% of iron, 0.03-0.08% of rare earth and the rest amount of copper. The present invention also relates to a preparation method and application of the above-mentioned titanium bronze alloy material. The device made of the titanium bronze alloy material of the present invention has no pores, trachoma, cracks, uniform metallographic structure, and metallographic particles below 65 microns, has high strength, high torque, high plasticity, no magnetism, and no sparks, and can be prepared Tools and spare parts used in special occasions, impact contact heads, etc., can also be used to make non-magnetic hand tools, non-spark hand tools and automatic collision tools, suitable for energy, chemical industry, petroleum, natural gas, navigation, aerospace, pharmaceuticals, mining and other modernization industry.

Description

technical field [0001] The invention belongs to the field of explosion-proof alloy materials, and in particular relates to a titanium bronze alloy material and its preparation method and application. Background technique [0002] Explosion-proof tools should be used in places where flammable and explosive substances are produced, stored, and transported to avoid sparks generated by the tool under impact, friction, etc., which will cause combustion or explosion of the surrounding medium. The materials used to make explosion-proof tools should have explosion-proof performance ( Comply with GB / T 10686-2013 standard), and should also have the mechanical properties that tools should have. [0003] At present, the most commonly used material for making explosion-proof tools at home and abroad is beryllium bronze alloy, and its tensile strength σ b ≥1117~1326N / mm 2 , hardness HV 300~390, hard elongation δ 10 ≥2%, non-magnetic, explosion-proof performance up to ExIIC level, in th...

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Problems solved by technology

[0004] However, the storage of beryllium (Be) element ore is very small and expensive, which makes the cost of making explosion-proof tools with beryllium bronze very high

[0005] Another material for making explosion-proof tools is aluminum bronze alloy, whose tensile strength σ b ≥782~989N / mm 2 , hardness HV240~300, hard elongation δ 10 ≥5%, low magnetic, the explosion-proof tools made of this material belong to ExIIB level, and pass the concentration of 7.8% ethylene (C 2 h 4 ) environmental test, it cannot replace beryllium bronze products in strong magnetic and flammable and explosive environments