Manufacturing method for silicon-contained aluminum alloy welding wire rod for spaceflight

A silicon-aluminum alloy and manufacturing method technology, which is applied in the direction of manufacturing tools, welding/cutting media/materials, welding media, etc., can solve the problems of prone to pores, slag inclusions and cracks, poor internal structure, etc., and achieve uniform and fine structure. Uniform structure and good formability

Active Publication Date: 2018-09-14
NORTHEAST LIGHT ALLOY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the existing silicon-aluminum alloy welding wire has a poor internal structure, which leads to easy occurrence of pores, slag inclusions and cracks during welding, and provides a method for manufacturing an aerospace-use silicon-containing aluminum alloy welding wire

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  • Manufacturing method for silicon-contained aluminum alloy welding wire rod for spaceflight

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specific Embodiment approach 1

[0016] Specific implementation mode 1: This implementation mode is a manufacturing method of silicon-containing aluminum alloy welding wire for aerospace, which is specifically completed according to the following steps:

[0017] 1. Melting: According to the mass fraction of Si in the silicon-containing aluminum alloy welding wire is 3.0%-4.0%, the mass fraction of Cu is 1.5%-2.8%, the mass fraction of Cr is 0.001%-0.08%, and the mass fraction of V is 0.05%~0.20%, the mass fraction of Be is 0.0001%~0.0015%, the mass fraction of Ti is 0.08%~0.18%, the mass fraction of Zr is 0.08%~0.28%, the mass fraction of impurities is ≤0.1%, and the balance is Al weighs low magnesium aluminum alloy ingots, copper ingots, silicon aluminum alloys, chromium aluminum alloys, vanadium aluminum alloys, zirconium aluminum alloys, beryllium aluminum alloys and titanium aluminum alloys, and low magnesium aluminum alloy ingots, copper ingots, silicon aluminum alloys, Chromium-aluminum alloy, vanadium-...

specific Embodiment approach 2

[0027] Specific embodiment two: the difference between this embodiment and specific embodiment one is: in step one, the mass fraction of Si in the silicon-containing aluminum alloy welding wire is 3.5%, the mass fraction of Cu is 2.05%, and the mass fraction of Cr is 0.02%, the mass fraction of V is 0.10%, the mass fraction of Be is 0.0006%, the mass fraction of Ti is 0.11%, the mass fraction of Zr is 0.13%, and the balance is Al. Weigh low-magnesium aluminum alloy ingots, copper ingots, Silicon-aluminum alloys, chrome-aluminum alloys, vanadium-aluminum alloys, zirconium-aluminum alloys, beryllium-aluminum alloys, and titanium-aluminum alloys. Others are the same as the first embodiment.

specific Embodiment approach 3

[0028] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that: in step 1, melt at a temperature of 740° C. for 5.5 hours to obtain a silicon-containing aluminum alloy melt. Others are the same as those in Embodiment 1 or 2.

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Abstract

The invention discloses a manufacturing method for a silicon-contained aluminum alloy welding wire rod for spaceflight, and relates to a manufacturing method for a welding wire rod. The manufacturingmethod aims to solve the problem that gas holes, slag inclusion and cracks easily occur in the welding process due to the fact that an existing silicon-aluminum alloy welding wire is poor in internalstructure. The manufacturing method comprises the steps of 1, carrying out smelting,2, carrying out casting, 3, carrying out saw cutting, 4, carrying out turning on an oxidation skin, 5, carrying outpreheating; 6, carrying out extruding; 7, carrying out annealing; 8, carrying out primary stretching; 9, carrying out intermediate annealing; and 10, carrying out second stretching so as to obtain thesilicon-contained aluminum alloy welding wire rod for spaceflight. The silicon-contained aluminum alloy welding wire rod manufacture through the manufacturing method has the advantages of being uniform in structure and free of coarse grains. The manufacturing method is mainly used for preparing the silicon-contained aluminum alloy welding wire rod for spaceflight.

Description

technical field [0001] The invention relates to a method for manufacturing welding wire. Background technique [0002] Aluminum alloy has the characteristics of high specific strength, good manufacturing process and low cost, and is the preferred structural material for aerospace products. Carrier rocket storage tanks, satellite storage tanks, tactical missile shells, etc. are welded with aluminum alloy. Aluminum alloy welding wire is a necessary filler material for aluminum alloy welding, and it is one of the factors that determine the quality of welds, and plays an important role in the welding production of aerospace aluminum alloys. The silicon-aluminum alloy welding wire belongs to a type of aluminum alloy welding wire and is widely used in the aerospace field. However, the existing silicon-aluminum alloy welding wire has a poor internal structure, which leads to problems such as pores, slag inclusions and cracks during welding. . Contents of the invention [0003]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/02C22C1/03B23K35/28C22F1/043
Inventor 高宝亭高新宇王海彬殷云霞贾宁杨晓禹刘世雷郑天航付金来姜鹏
Owner NORTHEAST LIGHT ALLOY CO LTD
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