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Melting method of ZL101A molten aluminum

A technology for molten aluminum and aluminum ingots, applied in the field of molten aluminum melting, can solve problems such as cracks, many impurities in molten aluminum, and easy generation of pores, and achieve the effect of reducing costs.

Inactive Publication Date: 2021-09-24
安徽古月机械制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the use of recycled materials, during the melting process, there are many impurities in the molten aluminum, which is prone to pores and cracks

Method used

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  • Melting method of ZL101A molten aluminum
  • Melting method of ZL101A molten aluminum
  • Melting method of ZL101A molten aluminum

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A method for melting ZL101A molten aluminum, comprising the following steps:

[0023] a) Crucible preheating process:

[0024] b) Melting process: Add flux from aluminum ingot (No. 2 aluminum), aluminum-silicon alloy (30%), magnesium ingot (Mg-3), aluminum-titanium alloy, and furnace charge to melt

[0025] In the b) melting process: the order of charging: firstly load aluminum ingots, aluminum-silicon alloys, aluminum-titanium alloys, and recycled materials, and then add magnesium ingots after melting.

[0026] In b) the melting process: the melting temperature does not exceed 760°C.

[0027] c) Degassing refining process: Pour the molten aluminum melted in the melting process in b) into the holding furnace, and then refine it with a refining agent to remove the slag. The degasser blows argon. If the temperature does not exceed 700°C, check for gas, and continue blowing argon if there is gas.

[0028] In the b) melting process, the flux used contains the following p...

Embodiment 2

[0034] A method for melting ZL101A molten aluminum, comprising the following steps:

[0035] a) Crucible preheating process:

[0036] b) Melting process: Add flux from aluminum ingot (No. 2 aluminum), aluminum-silicon alloy (30%), magnesium ingot (Mg-3), aluminum-titanium alloy, and furnace charge to melt

[0037] In the b) melting process: the raw material is the material that is pressed in the furnace at night, and must be cooled. Aluminum ingots or recycled materials are added into the furnace, and the temperature is lowered to 580 ° C (semi-solidified state) and stirred slightly.

[0038] In b) the melting process: the melting temperature does not exceed 760°C.

[0039] c) Degassing refining process: Pour the molten aluminum melted in the melting process in b) into the holding furnace, and then refine it with a refining agent to remove the slag. The degasser blows argon. If the temperature does not exceed 700°C, check for gas, and continue blowing argon if there is gas. ...

Embodiment 3

[0046] A method for melting ZL101A molten aluminum, comprising the following steps:

[0047] a) Crucible preheating process:

[0048] b) Melting process: Add flux from aluminum ingot (No. 2 aluminum), aluminum-silicon alloy (30%), magnesium ingot (Mg-3), aluminum-titanium alloy, and furnace charge to melt

[0049] In the b) melting process: the order of charging: firstly load aluminum ingots, aluminum-silicon alloys, aluminum-titanium alloys, and recycled materials, and then add magnesium ingots after melting.

[0050] In b) the melting process: the melting temperature does not exceed 760°C.

[0051] c) Degassing refining process: Pour the molten aluminum melted in the melting process in b) into the holding furnace, and then refine it with a refining agent to remove the slag. The degasser blows argon. If the temperature does not exceed 700°C, check for gas, and continue blowing argon if there is gas.

[0052] In the b) melting process, the flux used contains the following p...

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PUM

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Abstract

The invention discloses a melting method of ZL101A molten aluminum. The melting method comprises the following procedures of (a) a crucible preheating procedure, (b) a melting procedure and (c) a degassing and refining procedure, namely, molten aluminum in the (b) melting procedure is poured into a holding furnace, is refined by the aid of a refining agent, slag is removed, argon blowing is performed by the aid of a degassing machine, the flow is set according to the standard that materials do not overflow, the processing temperature does not exceed 700 DEG C, the gas content is checked, and argon is blown until no gas exists. Compared with the prior art, the method has the advantages that the use amount of the foundry returns in the total raw materials is 25%-30%, the cost can be greatly reduced, the impurity removal rate of the molten aluminum is 0.05%, and the tensile strength is 188 Mpa.

Description

technical field [0001] The invention belongs to a casting method, in particular to the technical field of a melting method of molten aluminum. Background technique [0002] Sand casting has rich sources of raw materials, unlimited production batches and casting sizes, and low cost. It is the most commonly used casting method. Sand castings currently account for about 70% of the total casting output. Sand casting requires core making and gating system design. The main function of core making is to form the inner cavity or local shape of the casting. Hand-made cores are used for single-piece and small-batch production, and machine cores are used for mass production. Manual core making often uses core box core making. In order to improve the strength of the core, iron wire or cast iron rod can be put as core bone during core making; in order to improve the air permeability of the core, vent holes can be pierced with needles or embedded with wax thread to form vent holes. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/03C22B9/05C22B9/10
CPCC22C1/026C22C1/03C22B9/05C22B9/10
Inventor 陈风岗
Owner 安徽古月机械制造有限公司