CN101928154B - Coating for repairing molded windshield ring for casting furnace - Google Patents
Coating for repairing molded windshield ring for casting furnace Download PDFInfo
- Publication number
- CN101928154B CN101928154B CN 201010270014 CN201010270014A CN101928154B CN 101928154 B CN101928154 B CN 101928154B CN 201010270014 CN201010270014 CN 201010270014 CN 201010270014 A CN201010270014 A CN 201010270014A CN 101928154 B CN101928154 B CN 101928154B
- Authority
- CN
- China
- Prior art keywords
- coating
- repairing
- casting furnace
- weight ratio
- quartz sand
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 33
- 239000011248 coating agent Substances 0.000 title claims abstract description 31
- 238000005266 casting Methods 0.000 title claims abstract description 19
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000000843 powder Substances 0.000 claims abstract description 25
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000011280 coal tar Substances 0.000 claims abstract description 16
- 239000006004 Quartz sand Substances 0.000 claims abstract description 15
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000004570 mortar (masonry) Substances 0.000 claims description 21
- 239000010453 quartz Substances 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000004927 clay Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract 1
- 229910052804 chromium Inorganic materials 0.000 abstract 1
- 239000011651 chromium Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 8
- 230000008439 repair process Effects 0.000 description 7
- 238000003756 stirring Methods 0.000 description 3
- 150000004645 aluminates Chemical class 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- -1 coal tar Chemical compound 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Landscapes
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The invention discloses a coating for repairing a molded windshield ring for a casting furnace, which comprises the following components in part by weight: 20 to 30 parts of fire clay, 70 to 80 parts of No.4 quartz sand and the balance of water. The coating also comprises coal tar which accounts for 2 to 5 percent of the mass of the coating. The fire clay comprises the following components in part by weight: 50 to 70 parts of refractory clay, 20 to 40 parts of high alumina powder and 5 to 15 parts of magnesia powder, wherein chromium ore powder is mixed in the No.4 quartz sand and accounts for 5 percent of the total mass of the No.4 quartz sand. The coating has the advantages of better repairing effect, wider application range, lower production cost, stronger toughness and convenience for repairing a net structure.
Description
Technical field
The present invention relates to a kind of coating, relate in particular to a kind of coating for repairing molded windshield ring for casting furnace, specifically be applicable to the repairing to molded windshield ring for casting furnace.
Background technology
Foundry furnace generally is used for the continuous casting of foundry goods, but because it can heat up the strong gap operation of ability, low, the good sealing effect of assembly expenses, thereby its not only castability is good, and casting efficient is high, so be widely applied.But because foundry furnace is in hot environment for a long time; but also often contact with the casting liquation; thereby its local location often the situation of breaking can occur; at this moment, if foundry furnace is carried out integral replacing, not only cost is larger; and complex operation; lose time, therefore, fracture site is repaired a kind of good selection of can yet be regarded as.
China Patent Publication No. is CN101279854A, and the patent of invention that open day is on October 8th, 2008 discloses a kind of coil insulation safe furnace lining material, is 100% by total mass, and each component is fused corundom 73～85%, aluminate cement 8～15%, Al
2O
3Micro mist 6～9%, bonding clay 1～3%, wherein the quality-class proportioning of fused corundom is: 1～3mm granularity fused corundom accounts for 18～22% of total mass ratio, and 0.044～1mm granularity fused corundom accounts for 35～43% of total mass ratio, and all the other are＜0.044mm granularity fused corundom.This invention also discloses the preparation method of above-mentioned furnace lining material, at first according to each group of aforementioned proportion weighing; Again with fused corundom, bonding clay and the Al of weighing
2O
3Micro mist is dry mixed stirring, obtains Preblend; Last more load weighted aluminate cement is added in the Preblend of gained, be dry mixed stirring, add again the water wet mixing and stir into paste and get final product.Although should invent high, the good insulation preformance of the refractoriness of related material, also can carry out sectional repair, but because it can only be used for the repairing of self, and can not be used for the repairing of the foundry furnace of other material manufacturing of employing, thereby its range of application is narrower, and its moiety price is more expensive, and production cost is higher, in addition, the physical strength of patching material is relatively poor, toughness a little less than, be not suitable for cancellated reparation.
Summary of the invention
The objective of the invention is to overcome the range of application that exists in the prior art is narrower, production cost is higher, toughness is weak defective and problem, the coating that is used for repairing molded windshield ring for casting furnace that a kind of range of application is wide, production cost is lower, toughness is stronger is provided.
For realizing above purpose, technical solution of the present invention is: a kind of coating for repairing molded windshield ring for casting furnace, and its moiety and weight ratio thereof are: refractory mortar 20-30, No. four quartz sand 70-80, all the other are water.
Described system component and weight ratio thereof are: 25, No. four quartz sands 75 of refractory mortar, all the other are water.
Described coating also comprises coal tar, and this coal tar accounts for the 2-5% of whole coating quality.
The moiety of described refractory mortar and weight ratio thereof are: fireclay 50-70, High-Alumina powder 20-40, magnesia powder 5-15.
The moiety of described refractory mortar and weight ratio thereof are: fireclay 60, High-Alumina powder 30, magnesia powder 10.
Be mixed with chromite ore fine in described No. four quartz sands, this chromite ore fine accounts for 5% of No. four quartz sand total masses.
Compared with prior art, beneficial effect of the present invention is:
1, because a kind of system component and weight ratio thereof for repairing molded windshield ring for casting furnace of the present invention is: refractory mortar 20-30, No. four quartz sand 70-80, all the other are water, this design can improve refractoriness of the present invention and cohesiveness, resistivity against fire after guaranteeing to repair and strong cementability, and, also be mixed with coal tar among the present invention, coal tar is conducive to the even preparation of coating, can promote the performance of coating property, thereby enlarge range of application of the present invention, make it not be subjected to the restriction of the former use material of foundry furnace, and then be convenient to the fracture site on the foundry furnace is repaired, be particularly useful for the repairing to molded windshield ring for casting furnace.Therefore range of application of the present invention is wider.
2, because the main raw material(s) of a kind of coating for repairing molded windshield ring for casting furnace of the present invention is refractory mortar, No. four quartz sand and water, those material ratios are easier to obtain, and cheap, even the preferred material in coating, refractory mortar and No. four quartz sand, such as coal tar, fireclay, High-Alumina powder, magnesia powder, chromite ore fine etc., also all be cheap starting material, and, High-Alumina powder, magnesia powder can improve the toughness at position that the present invention repairs, chromite ore fine can strengthen the density at position that the present invention repairs, and is convenient to repair reticulated structure.Therefore not only production cost is lower in the present invention, and toughness strong, be convenient to cancellated repairing.
Embodiment
The present invention is further detailed explanation below in conjunction with the accompanying drawing embodiment
A kind of coating for repairing molded windshield ring for casting furnace, its moiety and weight ratio thereof are: refractory mortar 20-30, No. four quartz sand 70-80, all the other are water.
The moiety of preferred coatings and weight ratio thereof are: 25, No. four quartz sands 75 of refractory mortar, all the other are water.
Preferred coatings also comprises coal tar, and this coal tar accounts for the 2-5% of whole coating quality.
Moiety and the weight ratio thereof of preferred refractory mortar are: fireclay 50-70, High-Alumina powder 20-40, magnesia powder 5-15.
Moiety and the weight ratio thereof of further preferred refractory mortar are: fireclay 60, High-Alumina powder 30, magnesia powder 10.
Be mixed with chromite ore fine in preferred No. four quartz sands, this chromite ore fine accounts for 5% of No. four quartz sand total masses.
Embodiment 1:
A kind of coating for repairing molded windshield ring for casting furnace, its moiety and weight ratio thereof are: 20, No. four quartz sands 80 of refractory mortar, all the other are water; Coating also comprises coal tar, and this coal tar accounts for 2% of whole coating quality; Be mixed with chromite ore fine in No. four quartz sands, this chromite ore fine accounts for 5% of No. four quartz sand total masses; The moiety of refractory mortar and weight ratio thereof are: fireclay 50, High-Alumina powder 40, magnesia powder 15.
Embodiment 2:
A kind of coating for repairing molded windshield ring for casting furnace, its moiety and weight ratio thereof are: 30, No. four quartz sands 70 of refractory mortar, all the other are water; Coating also comprises coal tar, and this coal tar accounts for 5% of whole coating quality; Be mixed with chromite ore fine in No. four quartz sands, this chromite ore fine accounts for 5% of No. four quartz sand total masses; The moiety of refractory mortar and weight ratio thereof are: fireclay 70, High-Alumina powder 20, magnesia powder 5.
Embodiment 3:
A kind of coating for repairing molded windshield ring for casting furnace, its moiety and weight ratio thereof are: 25, No. four quartz sands 75 of refractory mortar, all the other are water; Coating also comprises coal tar, and this coal tar accounts for 3% of whole coating quality; Be mixed with chromite ore fine in No. four quartz sands, this chromite ore fine accounts for 5% of No. four quartz sand total masses; The moiety of refractory mortar and weight ratio thereof are: fireclay 60, High-Alumina powder 30, magnesia powder 10.
Therefore not only repair efficiency is better in the present invention, range of application is wider, and production cost is lower, toughness is stronger, is convenient to repair reticulated structure.
The above only is preferred embodiments of the present invention; protection scope of the present invention is not limited with above-mentioned embodiment; as long as the equivalence that those of ordinary skills do according to disclosed content is modified or changed, all should include in the protection domain of putting down in writing in claims.
Claims (3)
1. coating of be used for repairing molded windshield ring for casting furnace, it is characterized in that: described system component and weight ratio thereof are: refractory mortar 20-30, No. four quartz sand 70-80, and coal tar, this coal tar accounts for the 2-5% of whole coating quality, all the other are water, the moiety of described refractory mortar and weight ratio thereof are: fireclay 50-70, High-Alumina powder 20-40, magnesia powder 5-15, be mixed with chromite ore fine in described No. four quartz sands, this chromite ore fine accounts for 5% of No. four quartz sand total masses.
2. a kind of coating for repairing molded windshield ring for casting furnace according to claim 1, it is characterized in that: described system component and weight ratio thereof are: 25, No. four quartz sands 75 of refractory mortar.
3. a kind of coating for repairing molded windshield ring for casting furnace according to claim 1, it is characterized in that: the moiety of described refractory mortar and weight ratio thereof are: fireclay 60, High-Alumina powder 30, magnesia powder 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010270014 CN101928154B (en) | 2010-09-02 | 2010-09-02 | Coating for repairing molded windshield ring for casting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010270014 CN101928154B (en) | 2010-09-02 | 2010-09-02 | Coating for repairing molded windshield ring for casting furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101928154A CN101928154A (en) | 2010-12-29 |
| CN101928154B true CN101928154B (en) | 2013-04-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010270014 Expired - Fee Related CN101928154B (en) | 2010-09-02 | 2010-09-02 | Coating for repairing molded windshield ring for casting furnace |
Country Status (1)
| Country | Link |
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| CN (1) | CN101928154B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106220198B (en) * | 2016-07-26 | 2018-11-20 | 东莞市晶谷新材料技术有限公司 | A kind of refractory composite and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101015850A (en) * | 2007-01-24 | 2007-08-15 | 中国重型汽车集团有限公司 | Water borne coating for metal mold casting and its prepn. |
| CN101074165A (en) * | 2006-05-17 | 2007-11-21 | 上海彭浦特种耐火材料厂 | Steel-bag aluminum-magnesium fire clay of electric furnace |
-
2010
- 2010-09-02 CN CN 201010270014 patent/CN101928154B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101074165A (en) * | 2006-05-17 | 2007-11-21 | 上海彭浦特种耐火材料厂 | Steel-bag aluminum-magnesium fire clay of electric furnace |
| CN101015850A (en) * | 2007-01-24 | 2007-08-15 | 中国重型汽车集团有限公司 | Water borne coating for metal mold casting and its prepn. |
Non-Patent Citations (1)
| Title |
|---|
| 高平祥.冲天炉修炉材料的改进.《机械工人（热加工）》.1991,(第2期),第12-13页. * |
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| Publication number | Publication date |
|---|---|
| CN101928154A (en) | 2010-12-29 |
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Granted publication date: 20130403 |