Zinc alloy casting and its making process

A production method and zinc alloy technology are applied in the field of zinc alloy castings and their production, which can solve problems such as the safety requirements of worm gear and elevators, and achieve the effects of small dry friction coefficient, convenient production and high tensile strength

Inactive Publication Date: 2007-03-21
阳西县电梯配件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The worm gear made of conventional materials used in existing eleva

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Zinc alloy casting of the present invention, the weight percent composition of its each component is:

[0027] Aluminum 20.0 Copper 1.65 Zinc 78.0 Magnesium 0.1 Other impurities 0.25.

[0028] The manufacture method of zinc alloy casting of the present invention comprises the following steps:

[0029] 1) Furnace preheating;

[0030] 2) Add each component in the melting furnace in proportion;

[0031] 3) Melting;

[0032] 4) After each component is melted, add the additive and let it stand for a period of time;

[0033] 5) Degassing and refining;

[0034] 6) Pre-furnace inspection, after passing the furnace, it will be poured and formed

[0035] 7) Machining.

Embodiment 2

[0037] Zinc alloy casting of the present invention, the weight percent composition of its each component is:

[0038] Aluminum 32.0 Copper 3.0 Zinc 64.644 Magnesium 0.006 Other impurities 0.35.

[0039] The preparation method of the zinc alloy casting of the present invention is the same as that of Embodiment 1.

Embodiment 3

[0041] Zinc alloy casting of the present invention, the weight percent composition of its each component is:

[0042] Aluminum 25.0 Copper 2.5 Zinc 72.32 Magnesium 0.03 Other impurities 0.15.

[0043] The preparation method of the zinc alloy casting of the present invention is the same as that of Embodiment 1.

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PUM

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Abstract

The present invention is zinc alloy casting and its making process. The zinc alloy casting has the chemical composition comprising Al 20.0-32.0 wt%, Cu 1.6-3.0 wt%, Zn 62.0-78.0 wt%, Mg 0.006-0.1 wt% and other impurities less than 0.35 wt%. The making process of the zinc alloy casting includes the following steps: preheating smelter; adding the components into the smelter; smelting; casting; forming; and machining. The zinc alloy casting has reasonable composition, tensile strength not lower than 315N/mm2, specific elongation not lower than 3 %, and Brinell hardness not lower than 100 HB.

Description

1. Technical field: [0001] The invention relates to a zinc alloy casting and a manufacturing method thereof, in particular to a zinc alloy worm wheel used in an elevator and a manufacturing method thereof, belonging to the innovative technology of the zinc alloy casting and its manufacturing method. 2. Background technology: [0002] In recent years, the comfort, speed, safety devices and various mechanical properties of elevators have been continuously improved. For example, the lifting speed of the elevator has changed from 1 m / s to the current 5 m / s. The acceleration of the elevator's lifting speed makes passengers feel more comfortable when taking the elevator, but at the same time, the requirements for the safety performance of the elevator are higher, and the requirements for elevator accessories will also be higher. . The worm gear made of conventional materials used in existing elevators has been difficult to meet the safety requirements of the elevator. 3. Conten...

Claims

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Application Information

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IPC IPC(8): C22C18/04C22C1/06B22D21/02
Inventor 黄增光
Owner 阳西县电梯配件有限公司
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