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

Pre-smelting process of electrolytic aluminum liquid

A technology of electrolytic aluminum liquid and pre-smelting, which is applied in the field of aluminum processing, can solve the problems of low pollution, low cost, high pollution, etc., achieve the effects of reducing pressure, reducing secondary oxidation slagging and burning loss, and improving cleanliness

Active Publication Date: 2020-11-13
XINJIANG JOINWORLD CO LTD
View PDF7 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] The purpose of the present invention is to provide a pre-smelting process of electrolytic aluminum liquid, which is mainly aimed at the high cost and high pollution problems that the current high-quality aluminum alloy production cannot directly use electrolytic aluminum liquid as raw material, but uses secondary remelted aluminum ingots for production , by pre-smelting the electrolytic aluminum liquid in the transfer vacuum bag, pre-adjusting the composition, reducing the amount of gas and slag, and improving the cleanliness of the melt, so that it can be directly used in the production of high-quality aluminum alloys, with high production efficiency and low pollution ,low 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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Pre-smelting process of electrolytic aluminum liquid
  • Pre-smelting process of electrolytic aluminum liquid
  • Pre-smelting process of electrolytic aluminum liquid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] Embodiment 1: Pre-use 100% electrolytic aluminum liquid to produce 6063 alloy rods for anodic oxidation

[0067] (1) The aluminum capacity of the vacuum bag is 8t each time. After the electrolytic aluminum liquid enters the vacuum bag, the slag content is first tested to be 0.28mm 2 / kg, the hydrogen content is 0.39ml / 100g. After adding 160kg of aluminum-silicon (20%) master alloy, start blowing high-purity argon gas from the microporous air-permeable brick at the bottom of the vacuum bag, with a flow rate of 12L / h and a pressure of 0.6MPa.

[0068] (2) After 15 minutes, after the intermediate alloy is completely melted, a covering agent is placed on the surface of the aluminum melt, and then high-purity argon gas is blown according to the periodic mountain peak, the peak gas flow rate is 5L / h, the peak pressure value is 0.5MPa, the time period is 8min, and the cycle is 3 Second-rate.

[0069] (3) Let stand for another 5 minutes, and remove the covering agent.

[007...

Embodiment 2

[0071] Example 2: Pre-use 100% electrolytic aluminum liquid to produce 5183 alloy rod for high-end welding wire

[0072] (1) The vacuum bag used has an aluminum capacity of 6t each time. After the electrolytic aluminum liquid enters the vacuum bag, the slag content is first tested to be 0.31mm 2 / kg, the hydrogen content is 0.38ml / 100g. After adding 250kg of magnesium ingots, start blowing high-purity argon gas from the microporous air-permeable brick at the bottom of the vacuum bag, with a flow rate of 10L / h and a pressure of 0.6MPa.

[0073] (2) After 15 minutes, after the intermediate alloy is completely melted, arrange a covering agent on the surface of the aluminum melt, and then blow high-purity argon gas according to the periodic mountain peak, the peak gas flow rate is 4L / h, the peak pressure value is 0.5MPa, the time period is 6min, and the cycle is 4 Second-rate.

[0074] (3) Let it stand for another 5 minutes, and remove the covering agent. Sampling test slag conte...

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

No PUM Login to View More

Abstract

The invention relates to a pre-smelting process of electrolytic aluminum liquid. The pre-melting process of the electrolytic aluminum liquid comprises the following steps that (1) pre-alloying treatment is carried out, specifically, after the electrolytic aluminum liquid enters a transfer vacuum ladle, pre-alloying treatment is carried out, and after intermediate alloy is put into the transfer vacuum ladle, inert gas is blown into the transfer vacuum ladle from a micropore gas permeable brick at the bottom of the transfer vacuum ladle till the intermediate alloy is completely molten; (2) blowing purification treatment is carried out, specifically, after the intermediate alloy is completely molten, a covering agent is arranged on the surface of melt firstly, then the flow and pressure of the inert gas are adjusted, and the flow and pressure of the inert gas are controlled to be in a periodic hill peak mode of gradually increasing and then gradually decreasing; and (3) after blowing purification is finished, standing is carried out for 2 - 5 min, and then the covering agent is removed. According to the pre-smelting process of the electrolytic aluminum liquid, the electrolytic aluminum liquid is pre-smelted in the transfer vacuum ladle, components are pre-adjusted, the gas content and the slag content are reduced, and the melt cleanliness is improved so that the electrolytic aluminum liquid can be directly used for high-quality aluminum alloy production, production efficiency is high, pollution is less, and cost is low.

Description

technical field [0001] The invention belongs to the technical field of aluminum processing, and in particular relates to a pre-smelting process for electrolytic aluminum liquid. Background technique [0002] With the continuous advancement of technology, the market has higher and higher requirements for the quality of aluminum alloys. Customer demand is developing towards thinner walls, higher strength, and easier processing. High-quality aluminum alloys for special purposes are gradually being valued by the market. Favored, this high-quality demand has become more and more strict on the cleanliness of aluminum alloys before casting. For example, the aluminum alloy used for high-end welding wire materials has strict requirements on the gas content and slag content of the product. If the standard is exceeded, the spatter will be serious during the welding process, and the weld will have poor pores; The content requirements are very high, and inclusions of tiny size (<10μm...

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
IPC IPC(8): C22C1/03C22C21/00
CPCC22C1/026C22C1/03C22C21/00
Inventor 王欢
Owner XINJIANG JOINWORLD CO LTD
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