Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A Method of Casting Large Aspect Ratio Aluminum Alloy Flat Ingot Using a Width Adjustable Chamfering Mold

A technology of chamfering crystallizer and aluminum alloy, which is applied in the casting field of aluminum alloy ingots, can solve the problems of difficult processing, uneven and stable quality of aluminum alloy ingots, low equipment utilization rate, etc., and saves equipment and maintenance costs. , The effect of improving equipment utilization and improving casting success rate

Active Publication Date: 2017-11-07
广西南南铝加工有限公司
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The arc mold can relieve the transverse cracks at the corners of the right-angle mold, but its processing is difficult, the size is difficult to guarantee, and the cost in follow-up maintenance is high
At the same time, the amount of milling of the cast arc slab is larger during milling, and the yield is low
Electromagnetic casting adopts electromagnetic crystallizer. The cast ingot has fine and uniform macrostructure, smooth surface and thin segregation layer. However, due to the high cost of technical equipment and patent use, it is not widely used in industrial production.
The wagstaff and low liquid level casting methods are widely used in production. Due to the differences in cooling water quality, water flow rate, casting temperature, molten aluminum temperature, and types and specifications of ingots and crystallizers in casting, the actual cast aluminum alloy flat The quality of the ingot is not uniform and stable, and casting is prone to a large number of waste products
In the traditional casting process, fixed mold casting is adopted, with a single width and low utilization rate of equipment

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A Method of Casting Large Aspect Ratio Aluminum Alloy Flat Ingot Using a Width Adjustable Chamfering Mold
  • A Method of Casting Large Aspect Ratio Aluminum Alloy Flat Ingot Using a Width Adjustable Chamfering Mold
  • A Method of Casting Large Aspect Ratio Aluminum Alloy Flat Ingot Using a Width Adjustable Chamfering Mold

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] To produce 5182 alloy with a specification of 2570×550 mm, proceed as follows:

[0033] 1. Ingredients: Si: 0.05-0.20%, Fe: 0.10-0.35%, Cu: 0.01-0.14%, Mn: 0.20-0.45%, Mg: 4.20-4.80%, Cr: 0.01-0.09%, Zn: 0.01-0.25%, the balance is aluminum, weigh aluminum ingots for remelting, return materials, pure Mg ingots, pure Zn ingots, Al-Si master alloys, Al-Fe master alloys, Al-Cu master alloys, Al -Mn master alloy, Al-Cr master alloy, the aluminum purity of aluminum ingots for remelting is 99.70%, strictly control the amount of remelting aluminum ingots and 5xxx series alloy return materials, the amount of 5xxx alloy return materials accounted for 0- 80%.

[0034] 2. Melting: Put the raw materials weighed in step 1 into a 50T melting furnace, and stir and melt with an electromagnetic stirrer at 690-750°C. After all the alloys are put into the furnace, when the melting temperature reaches 710-740°C and then smelted for 5-20 minutes, the melt is taken for direct-reading spectr...

Embodiment 2

[0043] To produce 3003 alloy with a specification of 2470×550mm, proceed as follows:

[0044] 1. Ingredients: according to the mass fraction, Si: 0.05-0.60%, Fe: 0.05-0.70%, Cu: 0.05-0.18%, Mn: 1.10-1.40%, Mg: 0.01-0.04%, Zn: 0.01-0.09%, The balance is aluminum. Weigh aluminum ingots for remelting, return materials, pure Mg ingots, pure Zn ingots, Al-Si master alloys, Al-Fe master alloys, Al-Cu master alloys, Al-Mn master alloys, and remelt The aluminum purity of aluminum ingots is 99.70%, and the amount of aluminum ingots for remelting and 3xxx alloy return materials is precisely controlled. The amount of 3xxx alloy return materials accounts for 0-80% of the total furnace input.

[0045] 2. Melting: Put the raw materials weighed in step 1 into a 50T melting furnace, and stir and melt with an electromagnetic stirrer at 700-760°C. After all the alloys are put into the furnace, when the melting temperature reaches 710-740°C, they will be smelted for 5-20 minutes, and the melt w...

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
widthaaaaaaaaaa
Login to View More

Abstract

The invention provides a method for using a width-adjustable chamfering crystallizer to cast an aluminum alloy slab ingot with a large width-to-thickness ratio and belongs to the technical field of metal processing. The method comprises the following steps of dosing, smelting, heat preserving, refining, standing, online refining, grain refining, filtering, casting and soaking. According to the method, in the casting process, the chamfering crystallizer is used, the width is adjustable, the equipment utilization rate can be increased, the equipment and maintenance cost is saved, the slab ingot milling amount is reduced, the yield is increased, the aluminum alloy slab ingot with the width-to-thickness ratio reaching 4.13-4.67 and the width size reaching 2270-2570 mm is obtained, and the requirements of different customers can be met.

Description

technical field [0001] The invention relates to a casting method of an aluminum alloy flat ingot, in particular to a method for casting a large width-thickness ratio aluminum alloy flat ingot with a width-adjustable chamfering crystallizer. Background technique [0002] In industrial production, cast aluminum alloy flat ingots are prone to many defects, such as excessive composition and segregation, coarse grain size, oxide inclusions, air bubbles, shrinkage porosity, surface segregation tumors, cracks, ingot tail collapse and cracking, etc., resulting in Yield is difficult to guarantee. Especially when casting large-size slabs, the corners of them tend to enter the third brittle zone under the action of the two-dimensional cooling zone, resulting in a large number of corner crack defects. and the regulation and improvement of the low liquid level casting process. [0003] The arc mold can alleviate the transverse cracks at the corners of the right-angle mold, but its proc...

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): C22C1/03C22C1/06B22D11/00B22D11/119C22C21/00
CPCB22D11/003B22D11/119C22C1/026C22C1/03C22C1/06C22C21/00
Inventor 何宇棋陈仁桂庞宇任月路蓝东华徐燕萍黄程毅
Owner 广西南南铝加工有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com