What is protective slag? What is its relationship with continuous casting protective slag?
Release time:
2020-07-27
Protective slag is an important auxiliary material in continuous casting production. With the development of steelmaking and continuous casting technology in China, Protective slag technology is also constantly improving. However, in the fierce competition in the steel market, continuous casting is undergoing a comprehensive technological upgrade with specialization, constant speed, high quality, and various product characteristics.
Since 20 the century 60 decade continuous casting protective slag Since the advent of casting technology, continuous casting protective slag The application has greatly expanded and improved the varieties of steel used in continuous casting, the types of continuous casting sections, the quality of continuous casting billets, and the continuous casting production rate, and has become an indispensable metallurgical auxiliary material.
continuous casting protective slag During the pouring process, powder or granular slag should be continuously added to the water surface of the mold steel, which is called Protective slag . The functions of protective slag are as follows:
1 Insulation to prevent heat dissipation;
2 Isolate air to prevent secondary oxygen from entering the molten steel and causing secondary oxidation, and does not affect the quality of the steel.
3、. Purify the molten steel by absorbing and dissolving inclusions that float to the steel slag interface from the molten steel.
4 There is a layer of slag film lubrication between the crystallizer wall and the solidified shell, which reduces the pulling resistance and prevents bonding between the solidified shell and the copper plate;
5 Fill the air gap between the blank shell and the mold to improve the heat transfer of the mold.
A good protective slag should fully exert the above five functions to improve the surface quality of the slab and ensure the smooth progress of continuous casting.
More about Protective slag For questions, please consult Luoyang Turner High Temperature Instrument Co., Ltd., which has advanced equipment and technical experience and has been committed to the production of high-temperature laboratory equipment and reagents for many years. The company's main products include TNKRY series X fluorescence detection, special X fluorescence melting machine high-temperature physical property tester, anhydrous lithium metaborate 、 melting point melting rate determining instrument, XRF flux, fire assay cupel furnace industrial cupel furnace . We always pay attention to customer needs, continuously upgrade technology, improve product quality, and enhance the company's core competitiveness to win the trust and support of customers with high-quality products and better services!
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