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Zinc alloy cooling forming process method

A technology of cooling forming and process method, which is applied in the direction of metal processing equipment, manufacturing tools, mechanical cleaning, etc., can solve the problems of shrinkage cavity, personal injury and property loss, etc., and achieve the reduction of cooling forming speed, smooth surface, and reduce surface cracks Effect

Pending Publication Date: 2022-04-22
CHIFENG ZHONGSE ZINC IND CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the production process of this cooling method, after the zinc alloy liquid is poured into the mold, it will be formed inside the alloy as it cools. Shrinkage phenomenon, resulting in shrinkage cavity inside, and corresponding shrinkage porosity and cracks on the surface due to the influence of feeding tension and stress. This kind of alloy with internal shrinkage cavity and surface shrinkage porosity and cracks, in the process of transportation and storage, If water touches the surface of the alloy and penetrates into the internal shrinkage cavity, the zinc alloy manufacturer will easily produce a frying pan phenomenon during the furnace melting process, causing personal injury and property loss; seriously affecting the surface quality and use safety of the zinc alloy

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Example 1: Production of 870 kg of zinc alloy ingots, the weight percentages of each metal element are: zinc base, aluminum 0.5%, copper<0.0020%, iron<0.0040%, cadmium<0.0020%, lead<0.0030%, selenium<0.0010% The bottom surface of the mold cavity is 1630 cm long and 320 cm wide, the top of the mold cavity is 1650 mm long and 340 mm wide, and the mold cavity height is 265 cm.

[0019] A zinc alloy cold forming process method, it comprises the following steps:

[0020] (1) Zinc alloy casting: Slowly pour the zinc alloy melt into the mold;

[0021] (2) The first peeling: After the zinc alloy casting and punching, immediately use an asbestos board peeling shovel with a length of 300mm×width 400mm×a thickness of 5mm to peel off the surface of the zinc alloy, and use the peeling shovel to scrape from the edge of the mold to the center of the mold The oxide slag on the surface of the zinc alloy is scooped out of the oxide slag concentrated on the surface of the zinc alloy in t...

Embodiment 2

[0024] Example 2: Production of 870 kg of zinc alloy ingots, the weight percentages of each metal element are: zinc base, aluminum 0.6%, copper<0.0020%, iron<0.0040%, cadmium<0.0020%, lead<0.0030%, selenium<0.0010% The bottom surface of the mold cavity is 1630 cm long and 320 cm wide, the top of the mold cavity is 1650 mm long and 340 mm wide, and the mold cavity height is 265 cm.

[0025] A zinc alloy cold forming process method, it comprises the following steps:

[0026] (1) Zinc alloy casting: Slowly pour the zinc alloy melt into the mold;

[0027] (2) The first peeling: After the zinc alloy casting and stamping, immediately use an asbestos board peeling shovel with a length of 350mm×width 400mm×a thickness of 5mm to peel off the surface of the zinc alloy, and use the peeling shovel to scrape from the edge of the mold to the center of the mold The oxide slag on the surface of the zinc alloy is scooped out of the oxide slag concentrated on the surface of the zinc alloy in t...

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Abstract

The invention discloses a zinc alloy cooling forming process method. The zinc alloy cooling forming process method comprises the following steps: (1) zinc alloy casting: slowly casting zinc alloy melt into a casting mold; (2) first-time scaling: after the zinc alloy is cast and punched, scaling operation is immediately carried out on the surface of the zinc alloy, oxidizing slag on the surface of the zinc alloy is scraped off, and the surface of the zinc alloy is smooth, smooth and free of slag; (3) second-time scaling is conducted, specifically, after first-time scaling is completed, natural cooling is conducted for 5-10 minutes, after an oxidation film is formed on the surface of the zinc alloy, the oxidation film in the middle of the surface of the zinc alloy is scraped off, and second-time scaling is completed; and (4) heat preservation and cooling: after the second-time scalping operation is finished, a heat preservation cover is buckled on the casting mold for heat preservation and cooling until the zinc alloy is completely solidified and formed. The zinc alloy produced through the technological method is free of shrinkage cavities inside and free of shrinkage porosity and cracks on the surface.

Description

technical field [0001] The invention belongs to the technical field of smelting, in particular to a zinc alloy cooling forming process. Background technique [0002] In the prior art, water cooling and natural cooling are commonly used in the production of zinc alloys to realize the cooling and forming of zinc alloys. In the production process of this cooling method, after the zinc alloy liquid is poured into the mold, it will be formed inside the alloy as it cools. Shrinkage phenomenon, resulting in shrinkage cavity inside, and corresponding shrinkage porosity and cracks on the surface due to the influence of feeding tension and stress. This kind of alloy with internal shrinkage cavity and surface shrinkage porosity and cracks, in the process of transportation and storage, If water touches the surface of the alloy and penetrates into the internal shrinkage cavity, the manufacturer of the zinc alloy will easily produce a frying pan phenomenon during the furnace melting proc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D7/12B22D43/00
CPCB22D7/005B22D7/12B22D43/007
Inventor 张景园王波朱永良罗海王云龙孙志彬
Owner CHIFENG ZHONGSE ZINC IND CO LTD
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