CN1566027A - Aluminium-carbon refractory baking process - Google Patents
Aluminium-carbon refractory baking process Download PDFInfo
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- CN1566027A CN1566027A CN 03112581 CN03112581A CN1566027A CN 1566027 A CN1566027 A CN 1566027A CN 03112581 CN03112581 CN 03112581 CN 03112581 A CN03112581 A CN 03112581A CN 1566027 A CN1566027 A CN 1566027A
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Abstract
A aluminium-carbon refractory baking process comprises, coating a layer of oxidation preventing paint to dispensed and formed product external surfaces, burning with open fire with the burning temperature being 1250 deg. C 1450 deg. C, as a result, the oxidation preventing coating is fixed and bonded onto the surface of the product, thus extending the operation life for the product.
Description
Technical field
The present invention relates to the production technique of aluminum-carbon refractory material.
Background technology
Aluminum-carbon refractory material has the good temperature resistance energy, is widely used in metallurgical industry, as makes the stopper or the mouth of a river, uses in the ladle of iron and steel continuous casting process.Aluminum-carbon refractory material is many to be aggregate with corundum and graphite, and carborundum powder or silica flour are additive, and resol is made wedding agent, also can be according to the difference of use, and it is different to prepare burden.Existing production technique, be through batching, mixing, isostatic pressing, shaping, burn till, operation such as surface spraying inoxidzable coating makes, as the patent No. is 92106398, name is called the described production technique of aluminium carbon integrated filler rod, and CN1075309, name is called the content that the production technique of aluminum-carbon refractory material is put down in writing.Product after the moulding buries firing technique because 23% above carbon content is seen naked light just burns easily so burn till to adopt, and is about to product and imbeds in the material such as coke and burn till, and firing temperature is about 1300 ℃.The deficiency of burying the firing technique existence is, bury burning to kiln requirement height, and loading amount is little, is unfavorable for save energy; Temperature is transmitted inhomogeneous, and the degree of the grilling thoroughly difference of product influences quality product; Inoxidzable coating is to be coated in product external surfaces after burning till, and is undesirable with the conjugation of product, influences the work-ing life of product.
Summary of the invention
Technical problem to be solved by this invention provides a kind of bright firing technique of aluminum-carbon refractory material, improves the burning amount, improves the quality of products.
Aluminum-carbon refractory material firing process of the present invention is characterized in that being coated with one deck antioxidizing paint through batching, formed product external surfaces, burns till with naked light then.
The present invention does not change the batching of aluminum-carbon refractory material, all suitable this technology of all aluminum-carbon refractory materials, and just inoxidzable coating is applied to product surface and adopts bright burning before burning till, and is the glaze layer of refractory materials.The characteristics of bright firing technique are, the Intake Quantity in kiln is big, and the burning amount is many, thus save energy; Make the heat transmission even, product can be grilled thoroughly, thereby improve the quality of products; Inoxidzable coating is burnt in product surface, combines firmly with product, thus the work-ing life of improving product.The technology of product (blank) moulding can same prior art.
The firing temperature of the bright burning of the present invention is 1250～1450 ℃, and is wideer than the firing range that buries firing technique.
Antioxidizing paint in the product surface coating is meant that the various antioxidizing paints under the anti-bright burning temperature all can use, and its objective is the oxidation-resistance that increases product.As Feldspar Powder 15～40%, flint clay powder 2～20%, calcinated talc powder 5～10%, water glass 20～35%, water 30～35%, by weight percentage.
Product after burning till is in order to increase outward appearance, surface applied outward appearance layer outside, and the outward appearance layer mainly plays beauty function, can be colourless, also can be coloured.Batching as a kind of outward appearance layer is: Gu cage glue 10～25%, water glass 75～90%, other adds colorant, and color and color depth are selected colorant and its add-on according to demand.This outward appearance has water-proof function simultaneously.
Advantage of the present invention:
Do not influence the batching of aluminum-carbon refractory material base material (blank), production technique is simple, increases the burning amount, increases more than at least 2 times, and save energy is improved the quality of products, and increases the service life, and can form various aluminum-carbon refractory material goods.
Embodiment
Following examples but do not limit the present invention in order to explanation the present invention:
Embodiment one:
A kind of aluminium carbonaceous stopper that uses in the ladle of making, composition of raw materials is: fused white corundum 60%, flaky graphite 25%, carborundum powder 4%, silica flour 4%, Alpha-alumina micro mist 1%, aqueous resol 5.6%, solid phenolic resin 0.4%.After raw material prepares by above-mentioned prescription, put into powerful mixing roll mixing 30 minutes, again the material after mixing is injected the stopper mould, moulding in the isostatic pressing machine, operating pressure are 150～300Mpa, and the dwell time is 3～8 minutes, blank after the taking-up moulding is behind mechanical shaping, be coated with one deck antioxidizing paint, its prescription is: by weight percentage, and Feldspar Powder 30%, flint clay powder 15%, calcinated talc powder 5%, water glass 20%, water 30%.Put into kiln then, the burning of employing naked light, temperature is 1250～1450 ℃, time is 24 hours, cooling is taken out from kiln, at product external surfaces coating one deck outward appearance layer, its prescription is: Gu cage glue 20%, water glass 80%, other adds iron black colorant 0.1% (accounting for the percentage ratio of solid cage glue and water glass total amount).
Embodiment two:
With embodiment one, the prescription of the antioxidizing paint before burning till is: Feldspar Powder 15%, flint clay powder 20%, calcinated talc powder 5%, water glass 25%, water 35%.Burn till the back at product surface coating outward appearance layer, preparing burden is: Gu cage glue 15%, water glass 85%.
Claims (5)
1, aluminum-carbon refractory material firing process is characterized in that being coated with one deck antioxidizing paint through batching, formed product external surfaces, burns till with naked light then.
2, technology according to claim 1 is characterized in that described firing temperature is 1250～1450 ℃.
3, technology according to claim 1 is characterized in that described antioxidizing paint is: Feldspar Powder 15～40%, flint clay powder 2～20%, calcinated talc powder 5～10%, water glass 20～35%, water 30～35%, by weight percentage.
4, technology according to claim 1, the product external surfaces coating outward appearance layer after it is characterized in that burning till.
5, technology according to claim 4 is characterized in that the batching of described outward appearance layer is: Gu cage glue 10～25%, water glass 75～90%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03112581 CN1566027A (en) | 2003-06-17 | 2003-06-17 | Aluminium-carbon refractory baking process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03112581 CN1566027A (en) | 2003-06-17 | 2003-06-17 | Aluminium-carbon refractory baking process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1566027A true CN1566027A (en) | 2005-01-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03112581 Pending CN1566027A (en) | 2003-06-17 | 2003-06-17 | Aluminium-carbon refractory baking process |
Country Status (1)
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| CN (1) | CN1566027A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101475403B (en) * | 2009-01-19 | 2011-09-14 | 马鞍山市益江高温陶瓷制造有限公司 | Preparation method for inoxidzable coating of aluminum carbon fire-resistant material |
| CN111960832A (en) * | 2020-08-24 | 2020-11-20 | 青岛弘汉耐火材料有限公司 | Bare body sintering coating for aluminum-carbon product and bare body sintering method |
-
2003
- 2003-06-17 CN CN 03112581 patent/CN1566027A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101475403B (en) * | 2009-01-19 | 2011-09-14 | 马鞍山市益江高温陶瓷制造有限公司 | Preparation method for inoxidzable coating of aluminum carbon fire-resistant material |
| CN111960832A (en) * | 2020-08-24 | 2020-11-20 | 青岛弘汉耐火材料有限公司 | Bare body sintering coating for aluminum-carbon product and bare body sintering method |
| CN111960832B (en) * | 2020-08-24 | 2022-10-11 | 青岛弘汉耐火材料有限公司 | Bare body sintering coating for aluminum-carbon product and bare body sintering method |
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