Supercharge Your Innovation With Domain-Expert AI Agents!

Dummy bar head suitable for hard aluminum alloy flat bloom semi-continuous casting

A hard aluminum alloy and dummy head technology, which is applied in the field of aluminum alloy semi-continuous casting, can solve problems such as hard aluminum alloy flat ingots are easy to crack, achieve long working life, eliminate cracking, and ensure casting safety.

Inactive Publication Date: 2008-05-21
苏州有色金属研究院有限公司
View PDF0 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a dummy head suitable for semi-continuous casting of hard aluminum alloy slabs, which aims to effectively solve the problem that hard aluminum alloy slabs are easy to crack at the initial stage of casting. The dummy head is easy to install, stable in work, long lasting

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
  • Dummy bar head suitable for hard aluminum alloy flat bloom semi-continuous casting

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] As shown in Figure 1 and Figure 2, a dummy head suitable for semi-continuous casting of hard aluminum alloy flat ingots, including dummy head body 2 and internal cavity 3, the material of the dummy head is small in thermal deformation coefficient and has low thermal conductivity Relatively poor flat steel, the bottom surface 4 of the internal cavity is an upwardly convex hyperboloid, and the ratio between the depth of the internal cavity and the radius of curvature of the hyperboloid bottom surface and the size of the aluminum alloy flat ingot is (0.8 to 1.5 ): (16~20): (4~7); and the four side walls of the internal cavity are tapered, and the angle between the side wall and the vertical surface is 25°~55°; the bottom of the internal cavity is provided with Drain holes 5 are arranged; the outer wall of the dummy head is a negative cone with a cone angle of 3°. The bottom of the dummy head has a threaded hole 1.

[0018] The inner cavity 3 of the dummy head is relativel...

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 provides a dummy bar head suitable for semi-continuous casting of hard flat aluminum-alloy ingots. The material of a body of the dummy bar head is flat steel, the bottom surface of an internal cavity is a hyperboloid, and the ratio among depth of the internal cavity, the curvature radius of the bottom hyperboloid and the width of flat aluminum ingot is (0.8 to 1.5): (16 to 20): (4 to 7); four side walls of the internal cavity are lightly tapered, and the bottom of the internal cavity is also provided with a drainage hole. The invention can effectively prevent hard flat aluminum ingot from cracking at the beginning of casting period, and better satisfy the working characteristics of the continuous casting process of aluminum alloy, and the invention has the advantages of stable work, long service life and promising application prospect.

Description

technical field [0001] The invention relates to a dummy head suitable for semi-continuous casting of hard aluminum alloy flat ingots, belonging to the technical field of semi-continuous casting of aluminum alloys. Background technique [0002] The initial stage of the aluminum alloy semi-continuous casting process is the most unstable stage of the whole casting process, and serious casting problems such as ingot cracking and leakage will occur. Especially for hard aluminum alloys represented by 2××× and 7×××, due to the high content of alloy elements in the ingot, the number of eutectic phases with low melting point at the grain boundary is large, and the plastic zone of the ingot during solidification Smaller, the brittle zone is larger, the ability of the ingot to resist cracks is very low, and hot cracking is easy to occur. Especially for hard aluminum alloy slabs, due to the uneven cooling of the four sides of the slab, the tendency of hot cracking in the ingot is great...

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): B22D11/14
Inventor 郭世杰王家淳刘金炎马科
Owner 苏州有色金属研究院有限公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com