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Component design and preparation method for zinc-aluminum alloy pipe

A kind of zinc-aluminum alloy, alloy technology

Active Publication Date: 2016-11-09
FUZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, whether the lead-antimony alloy pipe is produced, used, or left in mines or soil, there is serious pollution and toxicity, and the hazards are extremely serious.

Method used

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  • Component design and preparation method for zinc-aluminum alloy pipe
  • Component design and preparation method for zinc-aluminum alloy pipe
  • Component design and preparation method for zinc-aluminum alloy pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A zinc-aluminum alloy pipe composition design and preparation method figure 1 Component B of the Zn-Al binary phase diagram, which contains the following components by weight: 68.6% zinc, 31% aluminum, 0.03% copper, 0.02% magnesium, 0.03% tin, 0.01% silver, 0.1% titanium, 0.01% Boron, 0.05% cerium, 0.15% praseodymium;

[0027] Its preparation process includes the following steps:

[0028] (1) According to the ratio of raw materials designed above, the raw materials are smelted in a smelting furnace, and cast in a hot work mold to obtain a multi-component zinc-aluminum alloy ingot; the preparation process of the alloy rod, the relative error of the ingredients No more than 0.3%, the casting mold material is selected from hot work die steel or graphite, and special attention is paid to degassing and impurity removal to ensure that the melt is clean, and the alloy rod is obtained by cooling;

[0029] (2) Homogenizing heat treatment of the alloy ingot obtained in step (1)...

Embodiment 2

[0034] The composition of the zinc-aluminum alloy pipe, the preparation processes (1), (2), (3) and (4) are as in Example 1;

[0035] 5) Perform precision heat treatment on the extruded zinc-aluminum alloy pipe obtained in step (4), and the process is specifically as follows: placing the obtained extruded zinc-aluminum alloy pipe in a heat treatment furnace, and stress relief annealing at 250° C. for 9 hours; obtaining High plasticity, low hardness zinc-aluminum alloy tube Zn-31Al-RE-250; sampled and prepared into mechanical specimens, and its elongation and Vickers hardness were measured.

Embodiment 3

[0037] A zinc-aluminum alloy pipe composition design and preparation method, according to the attached figure 1 The composition ratio of C in the Zn-Al binary phase diagram, which contains the following components by weight: 56.6% zinc, 43% aluminum, 0.03% copper, 0.02% magnesium, 0.03% tin, 0.01% silver, 0.1% titanium, 0.01% boron, 0.05% cerium, 0.15% praseodymium;

[0038] Its preparation process includes the following steps:

[0039] (1) According to the above ratio of raw materials, the raw materials are placed in the casting equipment for casting to obtain multi-component zinc-aluminum alloy ingots; in the preparation process of the alloy rods, the relative error of the ingredients does not exceed 0.3%, and the casting mold material is selected from hot work die steel. Or graphite, pay special attention to degassing and impurity removal to ensure that the melt is clean, and the alloy rod is obtained by cooling;

[0040] (2) Homogenizing heat treatment of the alloy ingot o...

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PUM

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Abstract

The invention discloses a component design and preparation method for a zinc-aluminum alloy pipe. The zinc-aluminum alloy pipe comprises, by weight, 36.00%-69.00% of zinc, 31.00%-64.00% of aluminum, 0.01%-1.00% of copper, 0.01%-1.00% of magnesium, 0.01%-1.0% of tin, 0.01%-1.00% of silver, 0.01%-2.00% of titanium, 0.01%-0.50% of boron, 0.01%-0.70% of cerium and 0.01%-0.20% of praseodymium, and the sum of the weight percentage is 100%. The obtained zinc-aluminum alloy pipe can be used for manufacturing a mold and a pipe fitting in a complex shape and used for manufacturing a delay element in the civil explosive industry according to the component and performance differences, so that an existing lead-antimony alloy pipe which is severe in environmental pollution and toxicity is replaced; and meanwhile, zinc-aluminum alloy is light in proportion and cheaper than a copper alloy material, the cost can be obviously reduced, and the zinc-aluminum alloy pipe can be widely used in metallurgy, mines, light industry, food, chemical industry, printing, mechanical equipment and other fields.

Description

technical field [0001] The invention belongs to the field of non-ferrous metal new material processing and forming, and particularly relates to a composition design of a zinc-aluminum alloy pipe and a preparation method thereof. Background technique [0002] Zinc-aluminum alloys do not contain toxic heavy metals, are low in price, have excellent performance and processing properties, and have attractive advantages in some performance indicators. First, it has good casting process performance, which can be used for sand mold, metal mold and die casting production; second, low melting point, low energy consumption during melting and processing, the melting point of pure zinc is only 419.5 ° C, the latent heat of fusion is 117.04 J / g, and the melting point is low. The energy consumption of zinc is only 1 / 4 of the energy consumption of melting aluminum; thirdly, the recrystallization temperature is low, the deformation processing basically has no work hardening, and no intermedi...

Claims

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Application Information

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IPC IPC(8): C22C18/04C22C21/10C22C30/06C22F1/16C22F1/053
CPCC22C18/04C22C21/10C22C30/02C22C30/04C22C30/06C22F1/002C22F1/053C22F1/165
Inventor 吴波郭明辉张小军林晋伟钭舒适周泽友
Owner FUZHOU UNIVERSITY
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