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A high temperature and corrosion resistant glass coating for aluminum liquid stirring

A high-temperature and corrosion-resistant glass coating technology, applied in anti-corrosion coatings, fire-resistant coatings, coatings, etc., can solve the problems of shortening the service life of stirring tools, easy pollution of aluminum liquid, serious corrosion, etc., and achieves high density and aluminum resistance. Good liquid corrosion and the effect of promoting densification

Active Publication Date: 2018-02-13
FUZHOU RUIKE BULANG MEDICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the current production process, the tools used for stirring molten aluminum are usually made of cheap carbon steel or graphite. Although both of them have been industrialized, they are directly in contact with high-temperature molten aluminum, causing serious corrosion and large burning loss. It will greatly shorten the service life of the mixing tool, and it is easy to pollute the aluminum liquid

Method used

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  • A high temperature and corrosion resistant glass coating for aluminum liquid stirring
  • A high temperature and corrosion resistant glass coating for aluminum liquid stirring
  • A high temperature and corrosion resistant glass coating for aluminum liquid stirring

Examples

Experimental program
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Effect test

Embodiment 1

[0044] Weigh a certain amount of A-component glass, B-component glass, vermiculite, polyacrylate and silicone resin according to the ratio in Table 1, and perform the ratio, stirring, surface cleaning, coating, and drying in sequence according to the aforementioned steps and other procedures, the dried samples were placed in a program-controlled furnace for sintering, and the sintering conditions were 550°C and 750°C for 2 hours respectively; among them, the raw materials of component A glass were: 20% strontium carbonate, 30% calcium carbonate, 30% silicon dioxide, 15% boric acid, 5% titanium dioxide, the raw materials of component B glass are: 5% aluminum oxide, 35% boric acid, 15% sodium carbonate, 40% zinc oxide, and 5% silicon dioxide.

Embodiment 2

[0046] Weigh a certain amount of A-component glass, B-component glass, vermiculite, polyacrylate and silicone resin according to the ratio in Table 1, and perform the ratio, stirring, surface cleaning, coating, and drying in sequence according to the aforementioned steps and other procedures, the dried samples are placed in a program-controlled furnace for sintering, and the sintering conditions are 600°C and 760°C for 1.5h respectively; among them, the raw materials of component A glass are: 30% strontium carbonate, 20% calcium carbonate , 36% silicon dioxide, 10% boric acid, 4% titanium dioxide, the raw materials of component B glass are: 10% alumina, 50% boric acid, 5% sodium carbonate, 25% zinc oxide, 10% silicon dioxide.

Embodiment 3

[0048] Weigh a certain amount of A-component glass, B-component glass, vermiculite, polyacrylate and silicone resin according to the ratio in Table 1, and perform the ratio, stirring, surface cleaning, coating, and drying in sequence according to the aforementioned steps and other processes, the dried samples were placed in a program-controlled furnace for sintering, and the sintering conditions were 650°C and 780°C for 1 hour respectively; among them, the raw materials of component A glass were: 25% strontium carbonate, 25% calcium carbonate, Silicon dioxide 37%, boric acid 5%, titanium dioxide 8%, the raw materials of component B glass are: aluminum oxide 10%, boric acid 50%, sodium carbonate 8%, zinc oxide 30%, silicon dioxide 2%.

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Abstract

The invention discloses a high-temperature-resistant and corrosion-resistant glass coating for agitating molten aluminum. The high-temperature-resistant and corrosion-resistant glass coating is prepared from the following raw materials in percentage by weight: 50 to 70 percent of component-A glass, 15 to 25 percent of component-B glass, 2 to 10 percent of vermiculite, 1 to 5 percent of dispersing agent and 5 to 15 percent of high-temperature binder, wherein the sum of the percentages (by weight) of all the raw materials is 100 percent; the component-A glass is high-temperature glass which can be sintered in situ and has higher glass formation capacity, and is prepared from the following raw materials of strontium carbonate, calcium carbonate, silicon dioxide, boric acid and titanium dioxide; the component-B glass is low-temperature glass with a lower softening point, and is prepared from the following raw materials of aluminum oxide, the boric acid, the sodium carbonate, zinc oxide and the silicon dioxide. The glass coating provided by the invention has favorable corrosion resistance, and is coated on the surface of an agitating head prepared from a carbon steel or stainless steel material; by utilizing the secondary levelling of the component-A glass and the component-B glass, the compactness of the coating can be improved; the performance of the resistance of the agitating head to the corrosion of the molten aluminum is enhanced; the service life of the agitating head is prolonged.

Description

technical field [0001] The invention belongs to the technical field of high-temperature inorganic coatings, and in particular relates to a high-temperature and corrosion-resistant glass coating for stirring aluminum liquid. Background technique [0002] For nearly fifty years, aluminum has become one of the most widely used metals in the world. In the construction industry, aluminum is widely used in metal doors, windows, stair handrails, etc. after being processed into aluminum alloy; aluminum alloy materials are also widely used in the aviation department, national defense and military industry; aluminum cables reinforced with high-strength steel wires are commonly used in power transmission ; In addition, aluminum alloys are also widely used in automobile manufacturing, daily necessities, mechanical equipment and other fields. In order to improve production efficiency and production quality, a stirring device must be used while aluminum is rapidly melting, so that the va...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D1/00C09D5/08C09D7/61
CPCC09D1/00C09D5/08C09D5/18C09D7/65
Inventor 刘鸿琳张腾傅宇宏
Owner FUZHOU RUIKE BULANG MEDICAL TECH CO LTD
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