Modification technology of aluminum deoxidization product of non-oriented silicon steel

A silicon steel aluminum product technology, applied in the technical field of non-oriented silicon steel aluminum deoxidation product denaturation, can solve the problems of continuous casting nozzle flocculation, etc., achieve the effect of reducing product surface inclusions, reducing product surface inclusion defects, and avoiding clogging

Inactive Publication Date: 2019-09-27
MAANSHAN IRON & STEEL CO LTD
View PDF4 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this reason, the present invention provides a process for the denaturation of aluminum deoxidation products of non

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
  • Modification technology of aluminum deoxidization product of non-oriented silicon steel
  • Modification technology of aluminum deoxidization product of non-oriented silicon steel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0030] The 120-ton converter-120-ton RH-CSP thin slab continuous casting process is implemented on W800 for the production of non-oriented silicon steel. The 13 continuous casting furnaces are planned to stop pouring. The total pouring time is about 690 minutes. The stopper curve is stable (the starting rod position is about 67mm, The position of the stop casting rod is about 63mm), the pouring is normal, and there is basically no floc in the inner cavity of the nozzle after casting. The main parameters of RH refining of molten steel for each heat are shown in Table 1.

[0031] Table 1 Main parameters of RH refining of molten steel in each heat

[0032]

[0033]

[0034] After specific implementation certification, the process of the present invention can solve the problem of flocculation at the nozzle of continuous casting, realize multi-furnace continuous casting and reduce product surface inclusion defects. The number of continuous casting furnaces reaches more than 12 f

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 a modification technology of an aluminum deoxidization product of non-oriented silicon steel. After vacuum decarburization and deoxidization through the RH procedure, powder spray is conducted in a vacuum chamber, so that the aluminum deoxidization product is changed into liquid-state calcium aluminate from aluminum oxide, the powder agent for powder spray comprise not smaller than 90% of CaO, 2-5% of CaF2 and 2-5% of Al2O3. The modification technology of the aluminum deoxidization product of the non-oriented silicon steel can solve the flocculating flow problem of a continuous casting nozzle, achieves sequence casting and can lower the product surface inclusion defect, the number of sequence casting heats reaches 12 or over, and the product surface inclusion is greatly lowered.

Description

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

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
Owner MAANSHAN IRON & 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