High-lubrication slag-strip-free gettering crystallizer casting powder special for low-carbon moderately-thick slab
A mold mold slag and thick slab technology, which is applied in the field of metallurgical auxiliary materials, can solve problems such as insufficient lubrication, poor refining effect, and unsuitable slag forming speed, so as to reduce billet surface defects, avoid liquid level instability, and avoid The effect of unstable heat transfer
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[0009] Example 1: The following components and ratios of raw materials are used to make the low-carbon medium-thick slab special high-lubricity non-slag strip gettering mold powder: wollastonite 42%, quartz powder 13.7%, cryolite 5.4%, Sodium carbonate 11.5%, magnesia 2.6%, fluorite 8.8%, hydrophilic carbon 3.5%, graphite 4.8%, boron nitride 3.4% and manganese oxide 4.3%.
Example Embodiment
[0010] Example 2: The following components and ratios of raw materials are used to make the low-carbon medium-thick slab special high-lubricity non-slag strip gettering mold powder: wollastonite 42.7%, quartz powder 15%, cryolite 6.7%, Sodium carbonate 10%, magnesia 1.5%, fluorite 9.3%, hydrophilic carbon 3.1%, graphite 4.7%, boron nitride 4.5% and manganese oxide 2.5%.
Example Embodiment
[0011] Example 3: The following components and ratios of raw materials are used to make the low-carbon medium-thick slab special high-lubricity non-slag strip gettering mold powder: wollastonite 39%, quartz powder 16.7%, cryolite 6.3%, Sodium carbonate 10.9%, magnesia 2.1%, fluorite 7.5%, hydrophilic carbon 2.7%, graphite 5.4%, boron nitride 3.7% and manganese oxide 5.7%.
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