A hot-top casting process of 7a05 aluminum alloy and its aluminum alloy

A technology of hot top casting and aluminum alloy, applied in the field of metal materials, can solve the problems of increased production cost and low qualified rate of flaw detection.

Active Publication Date: 2016-07-20
SOUTHWEST ALUMINUM GRP
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the pass rate of flaw detection of the existing 7A05 aluminum alloy ordinary casting billet is low, only about 80%, resulting in an increase in the overall production cost

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0079] Produce 7A05 aluminum alloy with an ingot length of 4200mm and an ingot specification of Φ650. 4 castings at one time, considering the oxidation loss of 5%, the density of the alloy is 2800kg / m 3 , then calculate the total feeding amount = π×0.652 / 4×4.2×4×(1+5%)×2800≈17400kg.

[0080] Sprinkle 40kg of 2# solvent powder evenly in the melting furnace, then 290kgAl-Mn master alloy, 522kgAl-Cr master alloy, 818kg pure Zn ingot, 131kgAl-Ti master alloy, 522kgAl-Zr master alloy and 14874kgAL ingot Furnace loading is carried out in a large order, that is, small pieces of material are loaded first, and then large pieces of material are loaded. At the same time, intermediate alloys with high melting points are installed in the middle and upper layers, and metals that are easy to burn are installed in the middle layer. The hearth temperature of the smelting furnace is controlled at ≤1050°C, and the melt temperature is controlled at ≤770°C. When the melt softens, slumps and flatt...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
densityaaaaaaaaaa
Login to view more

Abstract

The invention provides a hot-top casting technology of a 7A05 aluminum alloy. The hot-top casting technology comprises the following steps: (A) smelting an Mn source, an Mg source, a Cr source, a Zn source, a Ti source, a Be source, a Zr source and an Al source to obtain a melt; (B) carrying out online degassing, online filtering and online refining on the melt obtained in the step (A) to obtain an online treatment product; (C) casting the online treatment product obtained in the step (B) to obtain the 7A05 aluminum alloy, wherein the casting speed is 15-25 mm / min; the 7A05 aluminum alloy comprises the following components in percentages by weight: 0.15-0.4% of Mn, 1.1-1.7% of Mg, 0.05-0.15% of Cr element, 4.4-5.0% of Zn, 0.02-0.06% of Ti, 0-0.0009% of Be, 0.1-0.25% of Zr and the balance of Al. The invention provides the 7A05 aluminum alloy.

Description

technical field [0001] The invention belongs to the technical field of metal materials, and in particular relates to a hot top casting process of 7A05 aluminum alloy and the aluminum alloy thereof. Background technique [0002] Aluminum alloy is an alloy assembly with aluminum as the matrix element. The main alloy elements include copper, silicon, magnesium, zinc, manganese, and nickel, iron, titanium, chromium, lithium and other alloy elements. The density of aluminum alloy is low, but its strength is relatively high, which is close to or exceeds that of high-quality steel. It has good plasticity and can be processed into various profiles. It has excellent electrical conductivity, thermal conductivity and corrosion resistance. It is used in aviation, aerospace, automobiles, and machinery manufacturing. It is the most widely used non-ferrous metal material in the marine, marine and chemical industries, and its usage is second only to steel. [0003] Aluminum alloys with a y...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): B22D11/04C22C1/02C22C21/10
Inventor 姚勇刁文武王剑杜荣
Owner SOUTHWEST ALUMINUM GRP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap