A high corrosion-resistant alloy flange and its preparation method

A corrosion-resistant alloy and corrosion-resistant coating technology, applied in flange connection, mechanical equipment, pipeline anti-corrosion/anti-rust protection, etc., can solve problems such as affecting the strength of alloy use
CN112126869BActive Publication Date: 2021-07-06无锡市星达石化配件有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
无锡市星达石化配件有限公司
Publication Date
2021-07-06

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Abstract

The invention proposes a high corrosion-resistant alloy flange and a preparation method thereof, including an aluminum alloy material and a corrosion-resistant coating, and the corrosion-resistant coating is NiF 2 ‑TiF 4 ‑Ni coating; the aluminum alloy material is composed of an aluminum zinc borate whisker reinforcement phase and an Al‑Zn‑Mg alloy matrix. The present invention utilizes NiF 2 ‑TiF 4 ‑Ni coating to enhance the corrosion resistance of aluminum alloy, the chemical corrosion resistance of the resulting product has been greatly improved, adding low-cost alloying elements Al and Ca to the Mg‑Li alloy to form Al with a high calcium-aluminum ratio ‑Zn‑Mg alloy, which improves the mechanical and corrosion resistance properties of the alloy.
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Description

technical field

[0001] The invention relates to the technical field of alloy materials, in particular to a highly corrosion-resistant alloy flange. Background technique

[0002] The ability of metal materials to resist medium erosion in corrosive grafting is called the corrosion resistance of metals. Metal corrosion is the most harmful spontaneous process in industry. Therefore, the development and application of corrosion-resistant alloys has great social significance and economic value. The current corrosion-resistant alloys mainly include corrosion-resistant stainless steel and nickel-based alloys. Although both corrosion-resistant stainless steel and nickel-based alloys have certain corrosion resistance, as the whole society pursues higher and higher quality, it is necessary to further improve the corrosion resistance. The corrosion resistance of corrosion alloys remains an ongoing topic in industry development.

[0003] Many studies have shown that adding trace rare e...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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