Continuous casting and rolling method for ZL114A welding wire rods

A ZL114A, continuous casting and rolling technology, which is applied in the field of casting aluminum alloy, can solve the problems of unacceptable acceptance, etc., and achieve the effects of no spatter and chip falling, low hydrogen content, and good welding processability

Inactive Publication Date: 2016-12-21
NO 52 INST OF CHINA NORTH IND GRP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In addition, some products are far from enough to be accepted according to professional technical standards and are never allowed. For example, missile shells are military products with strict requirements, and defects with a diameter greater than 1mm are not allowed.
Therefore, in order to solve these problems at present, we can only repair them by welding.

Method used

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  • Continuous casting and rolling method for ZL114A welding wire rods

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] like figure 1 Shown, a kind of continuous casting and rolling method of ZL114A welding wire rod, comprises the steps:

[0031] (1) The raw materials are weighed, and the ZL114A alloy is prepared according to the following mass percentages: Si: 6.8%; Mg: 0.5%; Ti: 0.15%; Be: 0.05%; Al: balance; Fe: 0.13%; Mn: ≤0.1 %; Ti: ≤0.1%; Ti+Zr: ≤0.2%; Sn: ≤0.01%; Pb: ≤0.03%; where Mn, Ti, Zr, Sn, Pb are impurities, and the sum of the impurities ≤0.75%;

[0032] (2) Aluminum alloy smelting, online degassing and slag removal:

[0033] (2.1) Refining in the furnace: Refining twice with pure nitrogen and powdery slagging agent, each refining time is 30 minutes, after refining, use a melt covering agent to quickly cover the surface of the aluminum alloy melt;

[0034] (2.2) Continuous purification treatment outside the furnace: use a degassing incubator for online degassing. The degassing incubator is equipped with a rotating nozzle, and pure nitrogen is introduced through the rotati...

Embodiment 2

[0045] like figure 1 Shown, a kind of continuous casting and rolling method of ZL114A welding wire rod, comprises the steps:

[0046] (1) The raw materials are weighed, and the ZL114A alloy is prepared according to the following mass percentages: Si: 7.0%; Mg: 0.55%; Ti: 0.15%; Be: 0.05%; Al: balance; Fe: 0.13%; Mn: ≤0.1 %; Ti: ≤0.1%; Ti+Zr: ≤0.2%; Sn: ≤0.01%; Pb: ≤0.03%; where Mn, Ti, Zr, Sn, Pb are impurities, and the sum of the impurities ≤0.75%;

[0047] (2) Aluminum alloy smelting, online degassing and slag removal:

[0048] (2.1) Refining in the furnace: Refining twice with pure nitrogen and powdery slagging agent, each refining time is 30 minutes, after refining, use a melt covering agent to quickly cover the surface of the aluminum alloy melt;

[0049] (2.2) Continuous purification treatment outside the furnace: use a degassing incubator for online degassing. The degassing incubator is equipped with a rotating nozzle, and pure nitrogen is introduced through the rotat...

Embodiment 3

[0060] like figure 1 Shown, a kind of continuous casting and rolling method of ZL114A welding wire rod, comprises the steps:

[0061] (1) The raw materials are weighed, and the ZL114A alloy is prepared according to the following mass percentages: Si: 7.2%; Mg: 0.5%; Ti: 0.15%; Be: 0.05%; Al: balance; Fe: 0.13%; Mn: ≤0.1 %; Ti: ≤0.1%; Ti+Zr: ≤0.2%; Sn: ≤0.01%; Pb: ≤0.03%; where Mn, Ti, Zr, Sn, Pb are impurities, and the sum of the impurities ≤0.75%;

[0062] (2) Aluminum alloy smelting, online degassing and slag removal:

[0063] (2.1) Refining in the furnace: Refining twice with pure nitrogen and powdery slagging agent, each refining time is 30 minutes, after refining, use a melt covering agent to quickly cover the surface of the aluminum alloy melt;

[0064] (2.2) Continuous purification treatment outside the furnace: use a degassing incubator for online degassing. The degassing incubator is equipped with a rotating nozzle, and pure nitrogen is introduced through the rotati...

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Abstract

The invention belongs to the field of technical processes for cast aluminium alloys, and specifically relates to a continuous casting and rolling method for ZL114A welding wire rods. The method comprises the following steps: raw material weighing and preparation; aluminium alloy smelting, and online degassing and deslagging; modification treatment; grain refinement, alloy blank continuous casting; casting blank induction heating; casting blank hot-continuous rolling; wire solution treatment; and wire winding. The method disclosed by the invention overcomes the shortages of the prior art; online detection and accurate control can be realized for the chemical components of the produced aluminium alloy wire blanks; the alloy has a low hydrogen content inside and less inclusion, and is almost free from segregation; welding wires are good in welding manufacturability, and free from splashing and chip falling during a use process; welding arcs are stable; and welded joints have high interior quality and mechanical property.

Description

technical field [0001] The invention belongs to the technical field of casting aluminum alloys, and in particular relates to a method for continuous casting and rolling of ZL114A welding wire rods. Background technique [0002] The aluminum-silicon cast aluminum alloy has good casting performance due to the addition of a large amount of Si. In addition, it is also good in air tightness. After modification and heat treatment, it has excellent mechanical properties, physical properties and processing properties. ZL114A aluminum alloy is the most widely used Al-Si series casting alloy material in aerospace field. It has a series of advantages such as high mechanical properties, good casting process performance and corrosion resistance, and is widely used in aviation, aerospace, automobile and other fields. [0003] With the development of continuous casting and rolling technology, continuous casting and rolling technology has been widely applied to the production of deformed a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/02C22C1/06C22F1/043B21B1/46
CPCB21B1/463C22C1/06C22C21/02C22F1/043
Inventor 王东张登峰乔波李鹏刘春兰邬富宝高世鹰张世全李庭吕文利郑宏伟陆益军周喜顺刘自成
Owner NO 52 INST OF CHINA NORTH IND GRP CORP
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