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Self-made cast steel roller molding coating and preparing method thereof

A technology of modeling coatings and cast steel rolls, which is applied to casting molding equipment, casting molds, casting mold components, etc., can solve problems such as poor bonding performance, poor impact resistance, casting crack iron inclusion, etc., to improve surface quality and facilitate preparation , low cost effect

Inactive Publication Date: 2019-10-11
宜兴市国昌轧辊有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Cast steel rolls are mainly used for H-shaped steel rough rolling stands and large and medium-sized bar and wire rough rolls. The casting process generally requires coating on the inner wall of the molding mold to isolate the inner wall of the mold cavity from contact with molten steel. The actual molding production process Alcohol-based casting coatings are generally used in the industry. During use, poor impact by molten steel and poor bonding performance lead to related casting cracks and iron inclusions.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Take the following components by weight for use: 65 parts of zircon powder, 15 parts of industrial alcohol, 2 parts of rosin, 2 parts of dextrin and 5 parts of bentonite; crush the rosin and add it to the industrial alcohol solution. After the rosin is dissolved, Add bentonite and stir for 30 minutes, then store in a sealed solution bucket; pour the zirconium powder into the paint bucket, add the prepared rosin alcohol solution, and stir for 25 minutes to make the zirconium powder in a uniform state; paint spraying: wait for the roll mold to come out After the drying room, remove the floating sand and smoke on the surface of the roller, apply paint after the temperature of the sand mold drops to ≤50℃, and coat the surface of the roller twice. The density of the first layer of paint is 2.0kg / cm 3 , The density of the second coating layer is 1.6 kg / cm 3 , The thickness of the paint is controlled at 2mm, and each layer of paint should be applied evenly without accumulation an...

Embodiment 2

[0019] Take the following components by weight for use: 80 parts of zircon powder, 25 parts of industrial alcohol, 5 parts of rosin, 5 parts of dextrin and 12 parts of bentonite; crush the rosin and add it to the industrial alcohol solution. After the rosin is dissolved, Add bentonite and stir for 40 minutes, then store it in a sealed solution bucket; pour the zirconium powder into the paint bucket, add the prepared rosin alcohol solution, and stir for 30 minutes to make the zirconium powder in a uniform state; paint spraying: wait for the roll mold to come out After the drying room, remove the floating sand and smoke on the surface of the roll, apply paint after the temperature of the sand mold drops to ≤50℃, and coat the surface of the roll twice. The first layer of paint has a density of 2.4kg / cm 3 , The density of the second layer of paint is 2.0 kg / cm 3 , The thickness of the paint is controlled at 5mm, and each layer of paint should be evenly coated without accumulation and...

Embodiment 3

[0021] Take the following components by weight for use: 70 parts of zircon powder, 20 parts of industrial alcohol, 3 parts of rosin, 4 parts of dextrin and 8 parts of bentonite; crush the rosin and add it to the industrial alcohol solution. After the rosin is dissolved, Add bentonite and stir for 35 minutes, then store in a sealed solution bucket; pour the zirconium powder into the paint bucket, add the prepared rosin alcohol solution, and stir for 28 minutes to make the zirconium powder in a uniform state; paint spraying: wait for the roll mold to come out After the drying room, remove the floating sand and smoke on the surface of the roll, apply paint after the temperature of the sand mold drops to ≤50℃, and coat the surface of the roll twice. The density of the first layer of paint is 2.2kg / cm 3 , The density of the second coating layer is 1.8 kg / cm 3 , The thickness of the paint is controlled at 4mm, and each layer of paint should be evenly coated without accumulation and par...

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Abstract

The invention discloses a self-made cast steel roller molding coating. The coating comprises the following components including, by weight part, 65 to 80 parts of zircon powder, 15 to 25 parts of industrial alcohol, 2 to 5 parts of rosin, 2 to 5 parts of dextrin and 5 to 12 parts of bentonite. Meanwhile, the invention discloses a preparing method of the self-made cast steel roller molding coating.The coating is the alcohol-based casting coating, is low in cost, and is simple and convenient to prepare, rapid in use, small in environment pollution, and free of adverse health effects. The coating can meet long-time washing and erosion of molten steel, sand burning and cracks formed due to contact of moulding sand and molten steel can be avoided, and the surface quality of a cast steel rollercan be improved.

Description

Technical field [0001] The invention belongs to the field of high-speed steel casting, and specifically relates to a self-made cast steel roll modeling paint and a preparation method thereof. Background technique [0002] Cast steel rolls are mainly used for H-shaped steel roughing stands and large and medium-sized bar and wire roughing rolls. The casting process generally requires coating on the inner wall of the mould to isolate the inner wall of the mould cavity from contact with molten steel. The actual moulding production process In general, alcohol-based casting coatings are used. During use, there are poor molten steel impact and poor bonding performance, which leads to related casting cracks and iron inclusions. Summary of the invention [0003] Objective of the invention: The objective of the present invention is to provide a self-made cast steel roll modeling coating and a preparation method thereof for the deficiencies of the prior art. [0004] Technical scheme: In orde...

Claims

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Application Information

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IPC IPC(8): B22C3/00B22C9/28B22C9/02B22C9/12
CPCB22C3/00B22C9/02B22C9/12B22C9/28
Inventor 徐进周军方平储颖迪
Owner 宜兴市国昌轧辊有限公司
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