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Powder zincizing agent high in corrosion resistance

A powder galvanizing, high corrosion resistance technology, applied in the field of steel corrosion resistance, can solve problems such as the ability to reach 1000 hours and the difficulty of forming high corrosion resistance

Pending Publication Date: 2020-10-30
YANCHENG KEAO MECHAICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the powder infiltration treatment is carried out within 500°C, it is difficult for nickel to infiltrate to form an infiltrated layer, so it is difficult for this product to form a highly corrosion-resistant infiltrated layer. It is disclosed that the neutral salt spray test of this product can only reach 600 hours, even after sealing treatment, it can only reach 1000 hours

Method used

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  • Powder zincizing agent high in corrosion resistance
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  • Powder zincizing agent high in corrosion resistance

Examples

Experimental program
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Effect test

Embodiment 1

[0030] Preferred embodiment 1 of the present invention provides a high-corrosion-resistant powder zinc-seeding agent, which is composed of raw materials in the following weight ratio: 40kg of zinc alloy powder, 80kg of ceramic powder, and 0.24kg of halide;

[0031] Wherein, the zinc alloy powder is composed of the following raw materials: zinc, magnesium, aluminum, phosphorus, and rare earth compounds, wherein the weight ratio of zinc, magnesium, aluminum, phosphorus, and rare earth compounds is 70:20:10:0.01:1.

[0032] The zinc alloy powder is obtained by first smelting and then powder-making (first, the zinc block is melted, then aluminum, magnesium, and rare earth compounds are added in sequence, and finally the phosphorus block is pressed into the molten zinc alloy; after smelting for a certain period of time, directly Atomized powder making), wherein the melting temperature is 600°C, and the melting time is 18 minutes.

[0033] The average particle size of the zinc alloy...

Embodiment 2

[0039] Preferred embodiment 2 of the present invention provides a high-corrosion-resistant powder zinc-seeding agent, which is composed of raw materials in the following weight ratio: 50 kg of zinc alloy powder, 75 kg of ceramic powder, and 0.2 kg of halide;

[0040] Wherein, the zinc alloy powder is composed of the following raw materials: zinc, magnesium, aluminum, phosphorus, and rare earth compounds, wherein the weight ratio between zinc, magnesium, aluminum, phosphorus, and rare earth compounds is 78:15:5:0.1:0.2.

[0041] The zinc alloy powder is obtained by first smelting and then powder-making (first melting the zinc block, then adding aluminum, magnesium, and rare earth compounds in sequence, and finally pressing the phosphorus block into the molten zinc alloy; after smelting for a certain period of time, casting into ingots, and then mechanically crushed into powder), wherein the melting temperature is 800 ° C, and the melting time is 12 minutes.

[0042] The powder ...

Embodiment 3

[0048] Preferred embodiment 3 of the present invention provides a high-corrosion-resistant powder zinc-seeding agent, which is composed of raw materials in the following weight ratio: 40kg of zinc alloy powder, 60kg of ceramic powder, and 0.2kg of halide;

[0049] Wherein, the zinc alloy powder is composed of the following raw materials: zinc, magnesium, aluminum, phosphorus, and rare earth compounds, wherein the weight ratio between zinc, magnesium, aluminum, phosphorus, and rare earth compounds is 72:25:6:0.2:1.

[0050] The zinc alloy powder is obtained by first smelting and then pulverizing (first, the zinc block is melted, then aluminum, magnesium, and rare earth compounds are added in sequence, and finally the phosphorus block is pressed into the molten zinc alloy; after smelting for a certain period of time, directly Atomized powder making), wherein the melting temperature is 650°C, and the melting time is 15 minutes.

[0051] The powder average particle size of the zin...

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Abstract

The invention provides a powder zincizing agent high in corrosion resistance. Raw materials of the powder zincizing agent high in corrosion resistance include, by weight, 20-80 parts of zinc alloy powder, 20-80 parts of ceramic powder and 0.2-2 parts of halide, wherein the zinc alloy powder is composed of zinc, magnesium, aluminum, phosphorus and a rear earth compound, and the weight ratio of zinc, magnesium, aluminum, phosphorus and the rear earth compound is (70-80):(10-30):(5-10):(0.1-0.5):(0.2-2). According to the powder zincizing agent high in corrosion resistance, an impregnation layer obtained after the product is adopted for carrying out powder zincizing has the excellent performance of high corrosion resistance, the practical service life of steel parts can be greatly prolonged, and the production process can also be simplified as the post-treatment processes such as sealing treatment can be omitted.

Description

technical field [0001] The invention relates to the technical field of iron and steel corrosion resistance, and in particular provides a high corrosion resistance powder zinc sherardizing agent. Background technique [0002] Iron and steel materials have been widely used in national life because of their low price and excellent mechanical properties, but steel products have the problem of poor corrosion resistance. Steel parts often require corrosion-resistant and anti-corrosion treatment. Zinc is the most commonly used chemical element in the surface protection of steel parts. Zinc anti-corrosion methods mainly include hot-dip galvanizing, electro-galvanizing, thermal spraying zinc and powder galvanizing. The metallurgical alloy layer formed by the diffusion of zinc and metal on the surface of steel has excellent corrosion resistance, wear resistance, impact resistance, high temperature oxidation resistance and other characteristics, which greatly improves the performance ...

Claims

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Application Information

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IPC IPC(8): C23C10/52
CPCC23C10/52
Inventor 乐林江沈伟乐政
Owner YANCHENG KEAO MECHAICAL
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