Method for capping nickel and stainless steel continuous casting tail billet

A continuous casting slab and stainless steel technology, which is applied in the capping field of nickel stainless steel continuous casting tail billet, can solve the problems of long shrinkage cavity of tail billet and affecting the yield of cast billet

Active Publication Date: 2010-03-03
SHANXI TAIGANG STAINLESS STEEL CO LTD
View PDF0 Cites 25 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the deceleration process is too short, it will lead to long shrinkage cavity of the tail blank, which will affect the yield of casting blank

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 capping nickel and stainless steel continuous casting tail billet
  • Method for capping nickel and stainless steel continuous casting tail billet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0032] This embodiment is implemented on a straight-arc continuous casting machine with soft reduction function. see figure 1 . The nominal capacity of the tundish 1 is 24 tons, the specification thickness of the continuous casting slab 6 is 200mm, the width is 1535mm, and the length of the crystallizer 5 is 900mm. The target pulling speed is 1.15m / min.

[0033] The embodiment of the capping method of the nickel stainless steel continuous casting tail blank is the following steps in sequence:

[0034] When there are still 8 tons of molten steel in I tundish 1, according to figure 2 The relationship curve between the amount of molten steel in the tundish 1 and the casting speed of the continuous casting slab, the casting speed of the continuous casting slab 6 starts to slow down from 1.15m / min, and when there are 7.5 tons of molten steel in the tundish 1, the casting speed drops to 1.0m / min, when there are 7 tons of molten steel in the tundish 1, the pulling speed drops t...

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

A method for capping a nickel and stainless steel continuous casting tail billet comprises the following steps: I. In a continuous casting process, when steel water in a tundish has 7.9 tons to 8.1 tons left, the casting speed is gradually reduced; II. In the process of when the steel water is reduced to 4.9 tons to 5.1 tons from 6.9 tons to 7.1 tons, the casting speed is kept unchanged; III. Whenthe steel water is reduced from 4.9 tons to 5.1 tons, residue dragging begins; IV. When the steel water is reduced from 3.9 tons to 4.1 tons, the casting speed is kept at 0.4 plus or minus 0.05m/min;V. When the steel water is reduced from 2.9 tons to 3.1 tons, residue dragging begins and water cooling is carried out, and the casting speed is reduced to 0.1 plus or minus 0.05m/min slowly; VI. When the steel water is reduced to 1.4 tons to 1.6 tons, the casting speed is kept at 0.1 plus or minus 0.05m/min; VII. Good capping is ensured, and the continuous casting speed is increased; and VIII. When a tail end of the continuous casting billet goes out of a mould, good capping is ensured again, and the speed is increased to pull the continuous casting billet out of a continuous caster. The method for capping the nickel and stainless steel continuous casting tail billet has safe operation and short capping time.

Description

technical field [0001] The invention relates to a capping method for nickel stainless steel continuous casting tail blank. Background technique [0002] The stainless steel continuous casting machine adopts the hydraulic smart segment (ASTC) and light reduction technology, and the width of the slab produced is relatively large, which brings difficulties to the final pouring and capping. The current capping method for the nickel stainless steel continuous casting tail billet is the traditional slow speed capping method, the capping time is long, and it is easy to cause the tail billet to rise during the capping process. Under the action of light pressure of the Suhe casting machine, molten steel emerges from the tail of the slab, seriously affecting normal production and equipment safety. Therefore, it is necessary to improve the capping method of the original nickel stainless steel continuous casting slab. Contents of the invention [0003] In order to overcome the above...

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): B22D11/18
Inventor 刘亮张彬
Owner SHANXI TAIGANG STAINLESS STEEL CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap