Check patentability & draft patents in minutes with Patsnap Eureka AI!

Application method of a tundish for vacuum ingot casting with a double-layer annular slag retaining weir

A tundish and slag retaining weir technology, applied in casting equipment, casting melt containers, manufacturing tools, etc., can solve the problems of short residence time, uneven load bearing of tundish, unreasonable temperature distribution, etc., to achieve stable casting, high temperature Uniform, even load-bearing effect

Inactive Publication Date: 2019-12-10
南京沃特电机有限公司
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 2. The residence time of molten steel in the tundish is short and the temperature distribution is unreasonable;
[0006] 3. The slag retaining weir is often set on one side, which makes the load bearing of the tundish uneven and affects the casting quality

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
  • Application method of a tundish for vacuum ingot casting with a double-layer annular slag retaining weir
  • Application method of a tundish for vacuum ingot casting with a double-layer annular slag retaining weir
  • Application method of a tundish for vacuum ingot casting with a double-layer annular slag retaining weir

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] refer to figure 1 , 2 , 3, 4;

[0018] figure 1 It is a schematic diagram of the structure of the vertical section including the poured steel entrance, and the structure of the gate 71 of the outer slag retaining weir 6 is omitted in the figure.

[0019] figure 2 In order to create a schematic diagram of the vertical section structure without pouring steel entrance, the structure of pouring steel entrance 4 is omitted in the figure, and the gate 71 structure of the outer slag retaining weir 6 is supplemented.

[0020] image 3 A schematic diagram of the relative positional relationship between the steel outlet of the inner and outer slag retaining weirs and the relative position of the inner and outer steel passages, showing the relative relationship between the steel discharge ports 7 of the inner and outer slag retaining weirs, the inner steel passage 51 and the outer steel passage 61 Positional relationship.

[0021] An application method of a tundish for vacu...

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 discloses an application method of a tundish for vacuum ingot casting with a double-layer annular baffle wall. The method comprises the following steps of before steel is poured, lowering a block bar to block a water nozzle, and lowering a gate to block a steel outlet; pouring steel, and waiting for the situation that the molten steel enters an inner cavity of the tundish through a steel pouring inlet and an upward flow field of the molten steel in the inner cavity of the tundish makes slag inclusion float upward; when the molten steel surface rises to the 1 / 2 height of a steel passage of the inner layer, lifting a gate, opening the steel outlet of the baffle wall of the inner layer, and waiting the molten steel to enter an intermediate cavity of the tundish through the steeloutlet of the baffle wall of the inner layer; controlling the steel pouring rate, and waiting the molten steel surface in the inner cavity of the tundish and the molten steel in the intermediate cavity of the tundish to reach the steel passage of the inner layer simultaneously; when the molten steel surface of the intermediate cavity of the tundish reaches the height of 2 / 3 of a steel passage ofthe outer layer, lifting a gate of the baffle wall of the outer layer, opening the steel outlet, and lifting a block bar device to open the water nozzle; controlling the steel pouring rate, and waiting the molten steel to enter the water nozzle through an opening. The method is beneficial to the floating of the slag inclusion, the overall bearing of the tundish is uniform, and the casting is stable.

Description

technical field [0001] The invention relates to the technical field of vacuum ingot casting, in particular to an application method of a tundish for vacuum ingot casting containing two layers of slag retaining weirs. Background technique [0002] The tundish is a device located between the ladle and the vacuum chamber for molten steel casting. Its main functions are to achieve vacuum sealing, store molten steel, and stabilize the flow. [0003] There are mainly following problems in the prior art: [0004] 1. The flow of molten steel disturbs the molten steel surface in the tundish, and the steel slag formed on the surface of the molten steel will be impacted by the molten steel into a deeper position below the liquid surface, especially when it enters the nozzle and is brought into the ingot mold to form slag inclusions; [0005] 2. The residence time of molten steel in the tundish is short and the temperature distribution is unreasonable; [0006] 3. The slag retaining w...

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): B22D18/06B22D41/00B22D43/00B22D7/12
CPCB22D7/12B22D18/06B22D41/00B22D43/001
Inventor 王新宇
Owner 南京沃特电机有限公司
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