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

Method for producing silicon-containing aluminum alloy ingot

A manufacturing method and technology of aluminum alloy, applied in the field of manufacturing aluminum alloy ingots, can solve the problems of inability to remove phosphorus, filter clogging, etc., and achieve the effects of easy removal operation, prevention of clogging, and improvement of productivity

Inactive Publication Date: 2015-08-12
SHOWA DENKO KK
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, in the technique of Patent Document 1, fine aluminum phosphide particles are also mixed, so there is a problem that the fine particles pass through the filter and phosphorus cannot be removed; the fine particles clog the filter.

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
  • Method for producing silicon-containing aluminum alloy ingot
  • Method for producing silicon-containing aluminum alloy ingot
  • Method for producing silicon-containing aluminum alloy ingot

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0062] Specific examples of the present invention will be described below, but the present invention is not particularly limited to these examples.

[0063]

[0064] A silicon ingot (with a phosphorus content of 230 ppm) obtained by reducing silica was heated and melted, and the resulting melt was poured into a mold 10 and allowed to cool naturally to obtain a rectangular parallelepiped silicon ingot 11 . Through this natural cooling, the solidification of the molten silicon proceeds from the vicinity of the outer peripheral frame portion of the mold and completes the solidification at the upper exposed surface. Such as figure 1 As shown, the upper surface of the ingot 11 (finally solidified part) was sprayed with water 13 at 20° C. for 30 minutes in a state where the silicon ingot 11 was left in the mold 10 .

[0065] Next, a rectangular parallelepiped silicon ingot 11 is taken out from the mold 10, and after drying to remove attached water, the silicon ingot is disintegra...

Embodiment 2

[0068] A silicon ingot (with the same phosphorus content as that of the silicon ingot used in Example 1) obtained by reduction treatment of silica was heated and melted, and the resulting melt was poured into the mold 10, allowed to cool naturally, A rectangular parallelepiped silicon ingot 11 was obtained. Through this natural cooling, the solidification of the molten silicon proceeds from the vicinity of the outer peripheral frame portion of the mold and completes the solidification at the upper exposed surface.

[0069] Next, if image 3 As shown, a rectangular parallelepiped silicon ingot 11 is taken out from a casting mold 10 , and the silicon ingot is disintegrated to obtain a plurality of disintegrated products 12 . Then, a water washing process of immersing the plurality of crushed products 12 in water 13 at 90° C. for 10 minutes was performed. Next, after removing the adhered water from the disintegrated products 12 taken out by drying, these disintegrated products ...

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

Provided is a method for producing a silicon-containing aluminum alloy ingot with which it is possible to prevent filter clogging that requires the suspension of casting, to suppress aluminum loss, and to reduce the content by percentage of phosphorus, which is an impurity in the obtained silicon-containing aluminum alloy ingot. This production method comprises: a water-rinsing step for subjecting a silicon mass containing phosphorus as an impurity to a water-rinsing treatment; a molten metal formation step for obtaining molten metal by introducing, into a smelting furnace, an alloy material including at least an aluminum material and said silicon mass obtained through said water-rinsing step, and melting said alloy material; and a casting step for obtaining a silicon-containing aluminum alloy ingot by casting the obtained molten metal.

Description

technical field [0001] The present invention relates to a method for producing a silicon-containing aluminum alloy ingot having a low content of impurity phosphorus. Background technique [0002] Ingots of silicon used as raw materials for continuous casting of silicon-containing aluminum alloys, etc., contain phosphorus. The impurity phosphorus in such a silicon block is considered to be brought in from raw material silica and carbon used for reduction in the process of manufacturing the silicon block. [0003] When such a phosphorus-containing silicon block is used as a part of the raw material, an aluminum alloy melt is prepared, an ingot is cast, and the ingot is processed by rolling or the like, hole defects, etc. are generated due to phosphorus contained in the ingot. , Therefore, the desired strength cannot be obtained, for example, in the case of chemical treatment, uniform etching cannot be performed, resulting in a decrease in the quality of the product. [0004]...

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 Applications(China)
IPC IPC(8): B22D27/20B22D7/00B22D21/04C22C1/02C22C21/02
CPCB22D7/005C22C21/02B22D27/20B22D21/04C22C1/02C22C1/026B22D1/00
Inventor 福田政志
Owner SHOWA DENKO KK
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