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Aluminum alloy material for textile machinery

A technology of aluminum alloy materials and textile machinery, applied in the direction of metal material coating technology, etc., can solve problems such as insufficient corrosion resistance, achieve the effects of improving corrosion resistance, reducing internal stress, and increasing tensile strength

Inactive Publication Date: 2021-12-28
浙江希杰金属科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Aluminum alloy materials are prone to pitting corrosion in the presence of chloride ions, therefore, the corrosion resistance of the prior art aluminum alloy materials in this environment is not yet sufficient for textile machinery

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] An aluminum alloy material for textile machinery, the alloy composition of the aluminum alloy material has the following percentages by weight: the content of Fe is 0.65%, the content of Si is 0.40%, the content of Mn is 1.1%, and the content of Mg is 0.13%. The content of Cu is 0.06%, the content of Cr is 0.02%, the content of Ti is 0.015%, the content of Zr is 0.01%, and the rest is aluminum, wherein, the combined content of Mg and Cu satisfies the following relationship by weight percentage 0.18%≤ Mg+Cu≤0.25%, and the Mg content in the aluminum alloy material is greater than the Cu content. Chromium forms (CrFe)Al in aluminum 7 and (CrMn)Al 12 Intermetallic compounds such as intermetallic compounds hinder the nucleation and growth process of recrystallization, strengthen the alloy to a certain extent, improve the toughness of the alloy and reduce the susceptibility to corrosion cracking, and titanium is used to improve the mechanical properties of the alloy.

[001...

Embodiment 2

[0018] In Example 2, on the basis of Example 1, 0.008% of Ni and 0.002% of Zn were added. Iron can significantly increase the recrystallization temperature of zinc and slow down the recrystallization process, but excessive iron will make the casting brittle and the machining performance will be poor. The fluidity of iron will also affect the smoothness of the casting surface, and the content is higher than 0.003 %, will reduce the fluidity of the alloy and damage the quality of the casting. Like copper, nickel tends to increase tensile strength and hardness, but it has a great impact on corrosion resistance. The high temperature strength and heat resistance can be improved by adding nickel, but it is very important to control the amount, and its content should not be higher than 0.01%, but not less than 0.006%.

[0019] At the same time, for the consideration of corrosion resistance, an Al-Mg oxide film is formed on the surface of the aluminum alloy material, wherein the Al-M...

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Abstract

The invention discloses an aluminum alloy material for textile machinery. The aluminum alloy material comprises the following alloy components by weight percent: less than or equal to 0.75% of Fe, less than or equal to 0.50% of Si, more than or equal to 0.95% and less than or equal to 1.35% of Mn, less than or equal to 0.20% of Mg, less than or equal to 0.10% of Cu, less than or equal to 0.05% of Cr, less than or equal to 0.03% of Ti, less than or equal to 0.03% of Zr and the balance of aluminum, wherein the bonding content of Mg and Cu meets the following relation in percentage by weight: 0.18% < = Mg + Cu < = 0.25%, and the content of Mg in the aluminum alloy material is greater than that of Cu. The aluminum alloy material for the textile machinery is good in corrosion resistance, internal stress can be reduced, and tensile strength can be improved.

Description

Technical field: [0001] The invention relates to the field of textile machinery manufacturing, in particular to an aluminum alloy material for textile machinery. Background technique: [0002] Aluminum and aluminum alloy materials are used in various fields because they are light in weight and have excellent corrosion resistance, processability, decorative properties, strength, electrical conductivity, and thermal conductivity. Aluminum alloy materials are widely used in textile machinery and equipment in the form of aluminum alloy stamping parts, aluminum tubes, aluminum plates, aluminum profiles, aluminum castings and forgings. In the prior art, although textile components made of aluminum alloy materials can resist erosion of many corrosive agents encountered in textile mills and yarn production to a certain extent, their corrosion resistance still needs to be further improved. The light weight and long-lasting dimensional accuracy of aluminum alloy materials can improve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00C23C22/00C22F1/04
CPCC22C21/00C23C22/00C22F1/04
Inventor 陈锦帅
Owner 浙江希杰金属科技有限公司