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308 alloy ingot and preparation method and application thereof

A technology for alloy ingot and aluminum alloy ingot, which is applied in the field of aluminum alloy and its preparation to achieve the effects of reducing casting speed, prolonging fatigue life, forming and good organization

Inactive Publication Date: 2019-01-25
NORTHEAST LIGHT ALLOY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is currently no 308 alloy that is suitable for improving the strength of conventional 3003 alloys before and after brazing and the pressure bearing value of brazed products, and is applied to users' medium and high pressure products to prolong the fatigue life of products and replace The application of some conventional 3003 alloys realizes the replacement of new materials

Method used

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  • 308 alloy ingot and preparation method and application thereof
  • 308 alloy ingot and preparation method and application thereof
  • 308 alloy ingot and preparation method and application thereof

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specific Embodiment approach 1

[0018] Specific Embodiment 1: In this embodiment, a 308 alloy ingot, the mass percentage of each element in the 308 alloy ingot is as follows: Si: 0.2-0.6%, Fe: 0.2-0.7%, Cu: 0.3-0.8%, Mn Al production.

specific Embodiment approach 2

[0019] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the mass percentages of the elements in the 308 alloy ingot are as follows: Si: 0.4%, Cu: 0.6%, Mn: 1.3%, Mg: 0.6%, Zn: 0.2%, Fe: 0.4%, Ti: 0.03%, Mn+Fe≤1.8%, single impurity <0.05%, total impurity <0.15%, and the balance made of Al. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0020] Specific embodiment three: the preparation method of a kind of 308 alloy ingot described in specific embodiment one specifically carries out according to the following steps:

[0021] 1. According to the mass percentage of each element: Si: 0.2-0.6%, Fe: 0.2-0.7%, Cu: 0.3-0.8%, Mn: 1.0-1.5%, Mg: 0.3-0.8%, Zn: 0.1-0.3%, Ti: 0.02~0.06%, Mn+Fe≤1.8%, and the balance is Al. Weigh pure aluminum ingots, pure magnesium ingots, pure zinc ingots, aluminum-silicon master alloys, aluminum-manganese master alloys, aluminum-copper master alloys, aluminum Iron master alloy and aluminum titanium boron grain refiner;

[0022] 2. Add the pure aluminum ingots, pure zinc ingots, aluminum-silicon master alloys, aluminum-manganese master alloys, aluminum-copper master alloys, and aluminum-iron master alloys weighed in step 1 into the melting furnace, and set the melting temperature to 720-760°C. After melting, stirring and slag removal, add pure magnesium ingots, and add No. 1 covering agen...

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Abstract

The invention relates a 308 alloy ingot and a preparation method and application thereof. The technical bottlenecked problems that before and after braze welding of conventional 3003 alloy, the strength is low, the pressure bearing value of used products is low are solved. A foundation is laid for production of high-strength composite plates and high-strength fin foils. The aluminum alloy is prepared from 0.2-0.6% of Si, 0.2-0.7% of Fe, 0.3-0.8% of Cu, 1.0-1.5% of Mn, 0.3-0.8% of Mg, 0.1-0.3% of Zn, 0.02-0.06% of Ti, less than or equal to 1.8% of Mn+ Fe, less than 0.05% of single impurities, less than 0.15% of total impurities and the balance of Al. By a strict chemical component control and casting means, the ingot with the specification of 420* 1450* (4000-6450) mm is casted. The 308 alloy ingot is applied to the field of alloy ingots.

Description

technical field [0001] The invention relates to an aluminum alloy and its preparation method and application. Background technique [0002] 3003 alloy is widely used in battery shell, automobile radiator, heat exchanger, air separation, cryogenic, chemical and other equipment fields. The environment in which the product is used is relatively harsh, therefore, high-strength, long-life 308 alloy is the development trend of 3XXX alloy in the future. However, there is currently no 308 alloy that is suitable for improving the strength of conventional 3003 alloys before and after brazing and the pressure-bearing value of brazed products, and is applied to users' medium and high-voltage products to prolong the fatigue life of products and replace The application of some conventional 3003 alloys realizes the replacement of new materials. Contents of the invention [0003] The present invention solves the problem that currently there is no 308 alloy and its preparation method sui...

Claims

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Application Information

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IPC IPC(8): C22C1/03C22C1/06C22C21/00B22D7/00
CPCB22D7/005C22C1/026C22C1/03C22C1/06C22C21/00
Inventor 张云龙张宏亮张璇任伟才王英君张岩李婷左德运刘玉龙车德财雷金琴韩明明鲁月
Owner NORTHEAST LIGHT ALLOY CO LTD
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