CN104439194A - Anti-oxidation protective agent for composite roll - Google Patents
Anti-oxidation protective agent for composite roll Download PDFInfo
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- CN104439194A CN104439194A CN201410664027.0A CN201410664027A CN104439194A CN 104439194 A CN104439194 A CN 104439194A CN 201410664027 A CN201410664027 A CN 201410664027A CN 104439194 A CN104439194 A CN 104439194A
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- oxidation protective
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Abstract
The invention discloses an anti-oxidation protective agent for a composite roll. The anti-oxidation protective agent comprises, by weight, 5-15 parts of quartz sand, 15-25 parts of fluorite, 10-20 parts of borax pentahydrate, 22-35 parts of soda ash and 10-20 parts of wollastonite. Once the anti-oxidation protective agent is applied, a large amount of gas is given out, each die cavity is full of the gas, air is pushed out, and oxygen is isolated. As an anti-oxidation agent reaction proceeds, gas is constantly given out, and the die cavities are in an oxygen-free state in the centrifugal casting process. Along with the reaction under high temperature, the anti-oxidation agent gradually gets into a glassy state, has lower viscosity and surface tension and is perfectly attached to the surface of liquid metal, oxygen is further isolated, and slag falling is prevented. A material in a glassy state is lower in density and floats upwards more quickly and more thoroughly when inner metal is cast, and slag inclusion is avoided. The specific gravity and the density are low, the one-shot usage amount of the anti-oxidation protective agent is only equivalent to 80% that of O type glass scum by weight, and cost performance is higher.
Description
Technical field
The present invention relates to the anti-oxidation product of roll, particularly relate to the agent of a kind of composite roll protection against oxidation.
Background technology
In the prior art, the agent of composite roll protection against oxidation is glassy state (grog), claims O slag (O type glass scum silica frost abbreviation), need become glass through 1300 DEG C of high-temperature fusion in industry, then the particle about physics is broken into 10 orders.But existing this protection against oxidation agent has following shortcoming: 1, process is loaded down with trivial details, wayward quality, and yield rate is low; 2, sometimes cause composite roll dreg defect, cause finished product to be scrapped; 3, high temperature melting, not low-carbon (LC), not environmentally.4, dog-eat-dog, is difficult to ensure the quality of products.
Summary of the invention
The object of the present invention is to provide a kind of protection against oxidation agent of powdery, do not need high temperature melting, only various raw mineral materials and industrial chemicals need be mixed according to certain mass ratio.
For achieving the above object, the invention provides the agent of a kind of composite roll protection against oxidation, mixed by following component by weight and form: quartz sand 5 ~ 15 parts, 15 ~ 25 parts, fluorite, borax anhydrous 10 ~ 20 parts, soda ash 22 ~ 35 parts and wollastonite 10 ~ 20 parts.
Preferably, the mixture homogeneity of described quartz sand, fluorite, borax anhydrous, soda ash and wollastonite is more than or equal to 97%.
Beneficial effect of the present invention:
This protection against oxidation agent has better oxygen-barrier performance---and auxiliary one applies, and namely has a large amount of gas to release, and is full of die cavity, can squeezes away rapidly original air, starvation.Along with antioxidant reaction continue carry out, gas is constantly released, and in whole centrifugal casting process, die cavity all will be in anaerobic state.Better filming performance---along with the reaction under high temperature, antioxidant becomes glassy state gradually, has less viscosity and surface tension, is perfectly attached to liquid metal surface, and further starvation, prevents slag.Better floating performance---the glass state material density that novel antioxidant is formed is less, floating faster more thorough, avoiding slag inclusion when casting interior metal.Consumption is more economized---and light specific gravity, density is little, and single use amount is only equivalent to 80% of O type glass scum silica frost by weight, and cost performance is higher.
Detailed description of the invention
For further setting forth the technological means and effect thereof that the present invention takes, be described in detail below in conjunction with the preferred embodiments of the present invention.
A kind of composite roll protection against oxidation agent, is mixed by following component by weight and forms: quartz sand 5 ~ 15 parts, 15 ~ 25 parts, fluorite, borax anhydrous 10 ~ 20 parts, soda ash 22 ~ 35 parts and wollastonite 10 ~ 20 parts.The mixture homogeneity of quartz sand, fluorite, borax anhydrous, soda ash and wollastonite is more than or equal to 97%.
Ignore cost of investment, the raw material of this protection against oxidation agent also can use: prodan, borax pentahydrate, borax decahydrate, boric acid, lime stone, dolomite, iron oxide red and titanium dioxide.
The present invention is mainly used in a kind of composite roll manufacture craft, in turn includes the following steps:
The first step, is heated to 1450 DEG C by the high-quality steel of high rigidity, makes it be in molten condition;
Second step, joins the above-mentioned high-quality steel being in molten condition in the horizontal roller mold doing centrifugal rotation and makes the high-quality steel of molten condition carry out centrifugal motion in horizontal roller mold;
3rd step, material of the present invention (being above-mentioned composite press roller protection against oxidation agent) is added in horizontal roller mold, carbonate compounds in material of the present invention is released the inert gases such as carbon dioxide and is driven away by original air, play the effect preventing high-temperature metal to be oxidized, the each component generation of composite roll protection against oxidation agent simultaneously chemical reaction, form glass-film, extend and cover high-temperature metal surface, continue anti-oxidation;
4th step, until the temperature of high rigidity high-quality molten steel be down to 1150 DEG C be in curdled appearance form a cylinder chamber time, stop the running of horizontal roller mold, and horizontal roller mold is erected, now glass-film is still in liquid state, and by the impact of self gravitation, liquid glass-film major part flows out;
5th step, in cylinder chamber, casting is in the common molten steel of molten condition, glass density due to liquid state is far smaller than the density of the ordinary steel of molten condition, the liquid glass remained in the wall of cylinder chamber chamber floats, stop composite roll dreg defect, after the ordinary steel cooled and solidified of molten condition, composite roll is shaping.
The above, for the person of ordinary skill of the art, can make other various corresponding change and distortion according to technical scheme of the present invention and technical conceive, and all these change and be out of shape the protection domain that all should belong to the claims in the present invention.
Claims (2)
1. a composite roll protection against oxidation agent, is characterized in that, is mixed by weight and forms: quartz sand 5 ~ 15 parts, 15 ~ 25 parts, fluorite, borax anhydrous 10 ~ 20 parts, soda ash 22 ~ 35 parts and wollastonite 10 ~ 20 parts by following component.
2. composite press roller protection against oxidation according to claim 1 agent, is characterized in that, the mixture homogeneity of described quartz sand, fluorite, borax anhydrous, soda ash and wollastonite is more than or equal to 97%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410664027.0A CN104439194B (en) | 2014-11-19 | 2014-11-19 | Anti-oxidation protective agent for composite roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410664027.0A CN104439194B (en) | 2014-11-19 | 2014-11-19 | Anti-oxidation protective agent for composite roll |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104439194A true CN104439194A (en) | 2015-03-25 |
| CN104439194B CN104439194B (en) | 2017-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410664027.0A Active CN104439194B (en) | 2014-11-19 | 2014-11-19 | Anti-oxidation protective agent for composite roll |
Country Status (1)
| Country | Link |
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| CN (1) | CN104439194B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108555269A (en) * | 2017-12-29 | 2018-09-21 | 中钢集团邢台机械轧辊有限公司 | A kind of cavity anti-oxidation method of centrifugal compound roll |
| CN111718617A (en) * | 2020-07-09 | 2020-09-29 | 东莞职业技术学院 | Nano metal conductive ink capable of being printed in graphical mode and preparation method thereof |
| CN111777892A (en) * | 2020-07-09 | 2020-10-16 | 东莞职业技术学院 | Method for preventing oxide layer from being formed on surface of liquid metal |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB261113A (en) * | 1925-08-18 | 1926-11-18 | Sand Spun Patents Corp | Method of centrifugally casting hollow metal bodies, and hollow bodies cast by such method |
| US3563300A (en) * | 1967-07-01 | 1971-02-16 | Kubota Iron & Machinery Works | Centrifugal casting of a composite roller |
| JPS50148230A (en) * | 1974-05-21 | 1975-11-27 | ||
| RU2020033C1 (en) * | 1991-02-05 | 1994-09-30 | Акционерная компания "Тулачермет" | Synthetic slag for protection of steel surface against oxidation during heating bimetallic workpieces |
| CN1126122A (en) * | 1994-11-02 | 1996-07-10 | 冶金工业部钢铁研究总院 | Protective agent for inner surface of centrifugal cast pipe |
| CN1127175A (en) * | 1995-01-17 | 1996-07-24 | 东北大学 | Pouring protective slag for electric slag centrifugal casting |
| CN101049629A (en) * | 2007-05-17 | 2007-10-10 | 武汉钢铁(集团)公司 | Method for preparing continuous casting protecting slag by using continuous casting sheet iron slag |
| CN101314835A (en) * | 2007-06-01 | 2008-12-03 | 黄石市火炬科技实业有限公司 | Low-cost non-magnetoelectricity roll body and manufacturing process thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1565900A1 (en) * | 1988-08-23 | 1990-05-23 | Научно-производственное объединение "Тулачермет" | Synthetic slag for protection of steel surface from oxydation |
| SU1734928A1 (en) * | 1990-04-03 | 1992-05-23 | Институт Металлургии Им.А.А.Байкова | Synthetic slag for protection of steel surface against oxidation |
-
2014
- 2014-11-19 CN CN201410664027.0A patent/CN104439194B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB261113A (en) * | 1925-08-18 | 1926-11-18 | Sand Spun Patents Corp | Method of centrifugally casting hollow metal bodies, and hollow bodies cast by such method |
| US3563300A (en) * | 1967-07-01 | 1971-02-16 | Kubota Iron & Machinery Works | Centrifugal casting of a composite roller |
| JPS50148230A (en) * | 1974-05-21 | 1975-11-27 | ||
| RU2020033C1 (en) * | 1991-02-05 | 1994-09-30 | Акционерная компания "Тулачермет" | Synthetic slag for protection of steel surface against oxidation during heating bimetallic workpieces |
| CN1126122A (en) * | 1994-11-02 | 1996-07-10 | 冶金工业部钢铁研究总院 | Protective agent for inner surface of centrifugal cast pipe |
| CN1127175A (en) * | 1995-01-17 | 1996-07-24 | 东北大学 | Pouring protective slag for electric slag centrifugal casting |
| CN101049629A (en) * | 2007-05-17 | 2007-10-10 | 武汉钢铁(集团)公司 | Method for preparing continuous casting protecting slag by using continuous casting sheet iron slag |
| CN101314835A (en) * | 2007-06-01 | 2008-12-03 | 黄石市火炬科技实业有限公司 | Low-cost non-magnetoelectricity roll body and manufacturing process thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108555269A (en) * | 2017-12-29 | 2018-09-21 | 中钢集团邢台机械轧辊有限公司 | A kind of cavity anti-oxidation method of centrifugal compound roll |
| CN111718617A (en) * | 2020-07-09 | 2020-09-29 | 东莞职业技术学院 | Nano metal conductive ink capable of being printed in graphical mode and preparation method thereof |
| CN111777892A (en) * | 2020-07-09 | 2020-10-16 | 东莞职业技术学院 | Method for preventing oxide layer from being formed on surface of liquid metal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104439194B (en) | 2017-02-01 |
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