Zinc alloy, preparation method thereof and automobile fuse

A zinc alloy and fuse technology, which is applied in the field of alloy materials, can solve the problems of insufficient hardness, poor mechanical properties, and high cost, and achieve the effects of reasonable composition ratio, good mechanical properties and corrosion resistance

Inactive Publication Date: 2018-03-13
广州番禺于一金属加工有限公司
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Among the existing zinc alloy materials, they are roughly divided into two types: die-cast zinc alloy and deformed zinc alloy. Among them, zinc-copper alloy is mainly used as die-cast zinc alloy. In this type of zinc alloy, the cost of the product is relatively high due to the use of copper. High, in this type of alloy, has been seeking to use low copper or copper-free materials to replace
However, the existing low-copper-zinc alloys generally have the disadvantages of insufficient hardness and poor mechanical properties.

Method used

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  • Zinc alloy, preparation method thereof and automobile fuse

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preparation example Construction

[0027] The present embodiment also provides a method for preparing a zinc alloy, comprising the steps of:

[0028] (1) Smelting: Put zinc into the furnace, add zinc-copper and zinc-titanium intermediate alloys when melting and heating up to 500-550°C, melt and stir evenly;

[0029] (2) Casting: the casting temperature is controlled at 440-480°C, the casting speed is controlled at 2-2.5m / s, the cooling water temperature is controlled at no more than 40°C, and the crystallizer temperature is controlled at 60-90°C;

[0030] (3) Hot rolling: the rolling temperature is controlled at 180-250°C;

[0031] (4) Intermediate rolling: the rolling temperature is controlled at 60-130°C, and the pass compression ratio is 30-50%;

[0032] (5) Smooth rolling: the rolling temperature is controlled at no more than 50°C, the pass compression rate is 8-15%, and the surface roughness of the roll is ≤0.08μm.

[0033] In a preferred embodiment, step (1) also includes the step of adding a rare earth...

Embodiment 1

[0036] The weight composition of zinc alloy is as follows:

[0037] Copper: 0.5%; Titanium: 0.1%; Rare earth metals: 0.01%; Magnesium: 0.08%; the balance is zinc and unavoidable impurities. Copper element and titanium element are respectively added in the form of zinc-copper master alloy and zinc-titanium master alloy during alloy batching; rare earth metal and magnesium element are respectively added in the form of rare earth alloy and zinc-magnesium master alloy.

[0038] (1) Smelting: put zinc into the furnace, and when the melting temperature rises to 550°C, add zinc-copper master alloy, zinc-titanium master alloy, rare earth alloy and zinc-magnesium intermediate, melt and stir evenly;

[0039] (2) Casting: the casting temperature is controlled at 460°C, the casting speed is controlled at 2m / s, the cooling water temperature is controlled at no more than 40°C, and the crystallizer temperature is controlled at 80°C;

[0040] (3) Hot rolling: the rolling temperature is contr...

Embodiment 2

[0044] The weight composition of zinc alloy is as follows:

[0045] Copper: 0.3%; Titanium: 0.08%; Rare earth metals: 0.008%; Magnesium: 0.001%; ​​the balance is zinc and unavoidable impurities. Copper element and titanium element are respectively added in the form of zinc-copper master alloy and zinc-titanium master alloy during alloy batching; rare earth metal and magnesium element are respectively added in the form of rare earth alloy and zinc-magnesium master alloy.

[0046] (1) Smelting: put zinc into the furnace, and when the melting temperature rises to 500°C, add zinc-copper master alloy, zinc-titanium master alloy, rare earth alloy and zinc-magnesium intermediate, melt and stir evenly;

[0047] (2) Casting: the casting temperature is controlled at 440°C, the casting speed is controlled at 2.5m / s, the cooling water temperature is controlled at no more than 40°C, and the crystallizer temperature is controlled at 70°C;

[0048] (3) Hot rolling: the rolling temperature i...

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Abstract

The invention provides a zinc alloy. Besides zinc and inevitable impurities, the zinc alloy comprises, by weight, 0.1-1% of copper and 0.001-0.2% of titanium. The zinc alloy has good mechanical performance and corrosion resistance and can be used for manufacturing plug-in type automobile fuses.

Description

technical field [0001] The invention belongs to the field of alloy materials, and in particular relates to a zinc alloy, a preparation method thereof and an automobile fuse. Background technique [0002] my country's zinc resources are not only rich in reserves, but also rank among the top in the world, and their taste is also high. In the current situation of tight copper resources, zinc alloy has become a good substitute for copper alloy due to its excellent casting performance, mechanical properties, low energy consumption, and low processing cost. Zinc alloy is an alloy composed of zinc as the basis and other elements added. The main added elements of the alloy are aluminum, copper and magnesium. Zinc alloy has low melting point, good fluidity, easy welding, brazing and plastic processing, corrosion resistance in the atmosphere, and the residual waste is easy to recycle and remelt. It is suitable for die-casting instruments, auto parts and casings, etc., and the castin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C18/02C22C18/00C22C1/03C22F1/16
CPCC22C18/02C22C1/03C22C18/00C22F1/165
Inventor 梁金明
Owner 广州番禺于一金属加工有限公司
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