Carbonaceous sliding gate slide board protection coating material

A technology for protecting coatings and sliding nozzles, which is applied in the field of iron and steel metallurgical coatings. It can solve the problems of poor oxidation resistance, failure to be popularized and used, and high cost, and achieve the effects of reducing frictional resistance, improving performance, and prolonging service life.

Inactive Publication Date: 2008-03-05
马鞍山方圆机电科技有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

The use of this lubricating coating improves the lubricity of the skateboard and improves the performance of the skateboar

Method used

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  • Carbonaceous sliding gate slide board protection coating material
  • Carbonaceous sliding gate slide board protection coating material
  • Carbonaceous sliding gate slide board protection coating material

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Experimental program
Comparison scheme
Effect test

Embodiment

[0050] This carbon-containing sliding nozzle sliding plate protective coating has been used in many experiments. Table 1 is a summary of the formula used for this carbon-containing sliding nozzle sliding plate protective coating.

[0051] Table 1 Summary of formulas for use of carbon-containing sliding nozzle sliding plate protective coatings

[0052]

[0053] Among them, the average particle size of flake graphite is 7 μm, the average particle size of boron nitride powder is 0.6 μm, the average particle size of alumina is 0.08 μm, the average particle size of zirconium silicate is 0.07 μm, the average particle size of tellurium oxide The diameter is 0.1 μm, the aluminum phosphate is aluminum dihydrogen phosphate, and the dispersant is CMC and bentonite.

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Abstract

The present invention is one kind of paint for protecting carbon-containing slide board of sliding gate, and belongs to the field of paint for ferrous metallurgy. The paint consists of water solution 65-75 wt%, micro powder 25-35 wt% and small amount of cellulose dispersant and viscosity regulator, and the micro powder dispersed homogeneously inside the water solution to form suspension consists of flake graphite 50-80 wt%, alumina 5-22 wt% boron nitride 1-15 wt%, aluminum phosphate 10-22 wt%, zirconium silicate 2-5 wt%, tellurium oxide 0.1-1 wt% and small amount of impurity. The paint is coated to the surface of hot or cold slide board to form protecting film to raise the antioxidizing performance, lubricating performance and use performance of the slide board, and to increase its service life.

Description

technical field [0001] The invention belongs to iron and steel metallurgical coatings, in particular to a protective coating used for sliding nozzle slides. Background technique [0002] The sliding nozzle is the key device in the molten steel casting process, and the sliding plate is the core component of the sliding nozzle device. 2 o 3 -C quality, Al 2 o 3 -SiO 2 -Carbon-containing functional materials mainly of C quality, the damage forms of the skateboard that are often seen in use are: roughening of the skateboard surface accounts for 40% to 60%, cracks and peeling account for 10% to 20%, and casting hole expansion accounts for 20 to 40%. %; Decarburization caused by the reaction of carbon in the skateboard with oxygen in the air or oxygen in molten steel is one of the main causes of damage to the skateboard. On the other hand, once the surface is decarburized, the opening aperture on the surface of the slide plate becomes larger, and under the action of hydrostat...

Claims

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Application Information

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IPC IPC(8): C04B35/66
Inventor 陶再南王力军
Owner 马鞍山方圆机电科技有限公司
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