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Zinc-aluminum-nickel alloy co-penetrated protective layer preparation method

A nickel alloy and protective layer technology is applied in the field of multi-alloy co-infiltration metal corrosion protection, which can solve the problems of insufficient corrosion resistance and poor temperature resistance, and achieve the effects of uniform thickness, efficient utilization and dense metallographic structure.

Active Publication Date: 2016-09-21
FUJIAN HONGGUAN ROADS & BRIDGE ANTI CORROSIVE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main shortcomings of the multi-element alloy co-infiltration anti-corrosion protective layer formed by the above-mentioned multi-element alloy infiltration agent on the metal surface are: the temperature resistance of the multi-element alloy co-infiltration anti-corrosion protective layer is poor, and the corrosion resistance to high-temperature salt spray gas is insufficient

Method used

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Examples

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Effect test

specific Embodiment 1

[0017] A method for preparing a zinc-aluminum-nickel alloy co-infiltration protective layer provided in this embodiment includes the following steps:

[0018] Step 1. Weigh the raw materials of the co-penetrating agent in the following parts by mass: 100 parts of zinc powder, 15 parts of aluminum powder, 85 parts of alumina powder, 20 parts of nickel powder, 3 parts of cerium oxide powder, 0.6 part of ammonium chloride, The particle diameter of above-mentioned raw material is 300 orders;

[0019] Step 2. Mix the zinc powder, aluminum powder, alumina powder, nickel powder and rare earth metal oxide powder weighed in step 1 evenly, heat to 150-200°C, keep warm for 30-50 minutes, cool to room temperature and then mix with The co-penetration agent is prepared after the catalyst is mixed evenly;

[0020] Step 3: Stack the bridge embedded parts with smooth and clean surface into stacks with similar height and width, and lay a layer of infiltration agent prepared in step 2 between a...

specific Embodiment 2

[0022] The preparation method of a zinc-aluminum-nickel alloy co-infiltration protective layer provided in this embodiment has the same specific steps as in specific example 1. The difference from specific example 1 is that the co-infiltration agent raw materials weighed in step one include the following Components in parts by mass:

[0023] Zinc powder 100 parts

[0024] Aluminum powder 10 parts

[0025] Aluminum oxide powder 100 parts

[0026] 30 parts nickel powder

[0027] 5 parts of cerium oxide powder

[0028] 0.5 parts of ammonium chloride.

specific Embodiment 3

[0029] The preparation method of a zinc-aluminum-nickel alloy co-infiltration protective layer provided in this embodiment has the same specific steps as in specific example 1. The difference from specific example 1 is that the co-infiltration agent raw materials weighed in step one include the following Components in parts by mass:

[0030] Zinc powder 100 parts

[0031] 20 parts of aluminum powder

[0032] 80 parts of alumina powder

[0033] Nickel powder 10 parts

[0034] 2 parts cerium oxide powder

[0035] 0.8 parts of ammonium chloride.

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Abstract

The invention discloses a zinc-aluminum-nickel alloy co-penetrated protective layer preparation method, which comprises the following steps of weighing co-penetrated agent raw materials: zinc powder, aluminum powder, alumina powder, nickel powder, rare-earth metal oxide powder and catalyst; uniformly mixing the weighed powder, heating the mixture to be 150 to 200 DEG C, insulating for 30 min to 50 min, cooling to be room temperature, and then uniformly mixing with the catalyst to prepare a co-penetrated agent; stacking bridge embedded parts plates with smooth and clean surfaces to form a stack with approximate height and width, paving a layer of co-penetrated agent between each two adjacent bridge embedded part plates, then packaging to form bundles, placing the bundles into a co-penetrated furnace, adding the co-penetrated agent, heating to be 400 to 500 DEG C, and carrying out co-penetrated treatment for 2 h to 3 h under the pressure of 0.10 to 0.20 MPa. According to the zinc-aluminum-nickel alloy co-penetrated protective layer preparation method provided by the invention, the space of the co-penetrated furnace can be efficiently utilized; a zinc-aluminum-nickel alloy co-penetrated protective layer is uniform in thickness and compact in metallographic structure, and has excellent resistance to corrosion on high-temperature salt mist gas; and the phenomenon of hydrogen brittleness does not exist.

Description

technical field [0001] The invention relates to the technical field of multi-element alloy co-infiltration metal anticorrosion, in particular to a method for preparing a zinc-aluminum-nickel alloy co-infiltration protective layer. Background technique [0002] Every year, the world's steel corrosion loss accounts for more than 10% of the total steel output, and the economic loss caused by corrosion in industrially developed countries accounts for more than 2% to 4% of the total output value of the national economy; research and develop advanced anti-corrosion technology to reduce economic losses caused by corrosion Prolonging the service life of steel and other metal materials and equipment is of great significance to promoting the development of advanced technology, cutting-edge science and defense industry, as well as the sustainable and coordinated development of the national economy and social environment. The embedded parts of bridges with reinforced concrete structure ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C10/30
CPCC23C10/30
Inventor 晋华明
Owner FUJIAN HONGGUAN ROADS & BRIDGE ANTI CORROSIVE TECH
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