Powder cored wire for aluminum-based amorphous anti-corrosion coating

Abstract

The invention discloses a powder cored wire for an aluminum-based amorphous anti-corrosion coating. The powder cored wire is characterized in that an aluminum strip serves as wire skin, and the wire filling rate is 40%-48%; the powder cored wire is prepared from, by atom, 18%-25% of Ti, 8%-12% of Ni, 1%-3% of Re, and the balance Al. According to a preparation method of the powder cored wire, weighing and burdening are conducted according to the powder cored wire element composition percentage, the components are put into a powder mixing machine to be mixed; the aluminum strip is tied to be in a U shape, and the mixed powder with the powder coefficient being 40%-48% is added into a U-shaped tank; an opening of the U-shaped groove is closed, and the powder is wrapped in the U-shaped tank; and the wire is gradually drawn, the diameter of the wire is gradually reduced through a wire-drawing die, and the final wire diameter is 2.0 mm. The powder cored wire has high amorphous forming capacity; the aluminum-based amorphous coating prepared through a high-speed electric arc spraying technology is good in corrosion resistance, the long-term anticorrosion function of key components of ocean engineering equipment can be remarkably improved, and the service life of the key components of the ocean engineering equipment can be remarkably prolonged.

Description

technical field [0001] The invention belongs to the field of thermal spraying in the field of material processing engineering, and specifically relates to a powder core wire material for aluminum-based amorphous corrosion-resistant coatings, which is mainly used in key components of steel structures in marine environments. Corrosion protection of components. Background technique [0002] 71% of the earth's surface is ocean, and my country has more than 3 million square kilometers of blue land. The ocean is a treasure trove of resources and space for human existence and development, and the ocean economy is becoming a new growth point for the global economy. With the establishment of my country's strategy of building a powerful marine country, the accelerated development of marine resources, and the rapid development of coastal economies, the new marine material industry has become one of the most active areas of technological innovation today. However, the corrosion and bi...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the problems that the current arc spraying aluminum-based amorphous coating material type system is too small, etc. The present invention provides a new type of powder core wire material for AlNiTiRe amorphous corrosion-resistant coating, which is sprayed by high-speed arc spraying. The coating prepared from powder core wire has the characteristics of compact structure, high amorphous content and excellent corrosion resistance.

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