CN103736559A - Metal-based ceramic reinforcement body for grinding disc of vertical grinding machine and preparation method of reinforcement body - Google Patents
Metal-based ceramic reinforcement body for grinding disc of vertical grinding machine and preparation method of reinforcement body Download PDFInfo
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- CN103736559A CN103736559A CN201410000402.1A CN201410000402A CN103736559A CN 103736559 A CN103736559 A CN 103736559A CN 201410000402 A CN201410000402 A CN 201410000402A CN 103736559 A CN103736559 A CN 103736559A
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Abstract
The invention relates to a metal-based ceramic reinforcement body for a grinding disc of a vertical grinding machine and a preparation method of the reinforcement body. The reinforcement body is a fan-shaped board body, wherein an arc-shaped notch and an arc-shaped projection which correspond to each other are respectively arranged on two sides of the board body. The reinforcement body is of a mixture formed by integrally sintering the following components by weight percent: 10% to 40% of corundum and 60% to 90% of iron powder, wherein the particle diameter of each corundum particle is between 0.25cm and 0.35cm. The preparation method comprises the following steps: evenly mixing the corundum particles and the iron powder which are prepared in advance; sending a mixture into a sintering kiln; sintering at a certain temperature until the iron powder is completely molten; then putting the sintered mixture in a mould which is prepared in advance; and cooling and demoulding so as to obtain the metal-based ceramic reinforcement body. According to the method, the energies at the tip ends of cracks are consumed through the plastic absorption of the iron powder with the addition of load during the sintering process, so that the reinforcement body and the grinding disc or a grinding roller can be connected to form an integrated structure by casting molten steel in the hole of the reinforcement body.
Description
Technical field
The present invention relates to wear-resistant ceramic field, particularly ceramic on metal material and preparation method thereof, specifically a kind of ceramic on metal reinforcement for vertical mill mill and preparation method thereof.
Background technology
In industries such as coal, metallurgy, mine, electric power, building materials, refractory material, the energy, particularly the powder manufacture field pulverized coal preparation system such as cement need to be used grinding machine, the mill of grinding machine is as main wear-out part, and the quality of its operation has determined the economic benefit of enterprise to a certain extent.The wear-resistant block of existing grinding machine is to adopt the metals such as potassium steel, rich chromium cast iron to make mostly; toughness is better, and when after its wearing and tearing, build-up wear-resistant alloy-layer improves its service life repeatedly in the above; but be that bead-welding technology is made due to what adopt; surfacing equipment costliness, once, its life-span increases little in built-up welding; the wear-resistant block of grinding machine replacing simultaneously need to be shut down continually; change the required time of wear-resistant block longer at every turn, have a strong impact on production efficiency, caused great economic loss.
In prior art, also there is the abrasion-proof ceramic block of employing carry out alternative metals mill body, its abrasion-proof ceramic block is mainly that the material take aluminium oxide as ceramic phase is made, it has possessed the key property that ceramic material possesses, elastic modelling quantity and the hardness of aluminium oxide ceramics are high, chemical stability is good, there is the features such as heat-resisting, corrosion-resistant, wear-resistant and quality is little, but also there is the defects such as the large and fragility of sintering retained porosity is large in aluminium oxide ceramics itself, thereby limited its application.Existing also have metal-based compound ceramic lining plate is applied in the plant equipment of taking up wear, this metal-based compound ceramic lining plate injects the ceramic on metal reinforcement with multiple perforation plug holes by fused alumina zirconia, high ferrochrome powder and iron powder and forms after electric smelting, its complicated process of preparation, need multistep sintering process, sintering temperature is high, time is long, and cost is high; And the main component in composite ceramics liner plate is fused alumina zirconia, in fused alumina zirconia, contain SiO
2, Na
2the oxides such as O can form amorphous glassy phase, although glassy phase can play the effect of bonding in its sintering process, but the short texture of glassy phase, intensity is low compared with ceramic phase or Metal Phase, easily at grain boundaries, assembles, when fracture, crackle easily passes along crystal boundary, causes the intensity of liner plate to decline.
Summary of the invention
Technical problem to be solved by this invention is to overcome in the grinding machine of prior art to adopt abrasion-proof ceramic block, the problems such as the sintering retained porosity that exists is large, fragility is large and crack sensitivity is strong, a kind of ceramic on metal reinforcement for vertical mill mill and preparation method thereof is provided, this reinforcement can connect to one with mill, improves the service life of mill.
The present invention for addressing the above problem adopted technical scheme is: for the ceramic on metal reinforcement of vertical mill mill, this reinforcement is arranged in the groove on described mill surface, the mixture that described reinforcement is comprised of corundum and iron powder is made integrative-structure through sintering, wherein, the percentage by weight of corundum and iron powder is: corundum 10-40%, iron powder 60-90%, the particle diameter of corundum in granules is 0.25-0.35cm, described reinforcement is to have spiral portion, the fan-shaped plate body of short arc line portion and both sides side plate, the edge of one of them side plate is provided with the arc notch of indent, the edge of another side plate is provided with the arc convex with the corresponding setting of arc notch, so that making adjacent ceramic on metal reinforcement docks mutually, in reinforcement, be provided with the hole for the molten steel of casting that connects its upper and lower surface, to reinforcement and mill are connected to one.
Be used for the preparation method of the ceramic on metal reinforcement of vertical mill mill: by weight percentage, corundum 10-40%, iron powder 60-90% that to get the particle diameter made be in advance 0.25-0.35cm, after mixing, mixed material being sent into kiln heats, heating-up temperature is 1050-1450 ℃, when being heated to iron powder and melting completely till; Then the molten iron after fusing and the mixture of corundum in granules are inserted in the mould making in advance, the cooling rear demoulding, makes finished product.
Preferably, the heating-up temperature in kiln is 1260-1450 ℃.
Preferably, the heating-up temperature in kiln is 1050-1190 ℃.
The present invention in use, polylith reinforcement is docking together by the projection on it and breach, then by the hole casting molten steel in reinforcement, by the position of reinforcement to be installed on mill and reinforcement is fixed is integrated, without using bolt by fixing between liner plate and liner plate, and without using bolt to be fixedly connected between liner plate and mill, thereby avoid the race material of conventional mill and the problem of leaking material; And the junction between each reinforcement is due to the effect of molten steel, after cooling, each reinforcement forms a complete entirety, molten steel can infiltrate between the ceramic particle of reinforcement by the junction between hole and each reinforcement, ceramic particle is wrapped up, ceramic phase and Metal Phase are uniformly distributed, have greatly improved the wearability of liner plate on mill, extended its service life.
Beneficial effect: the present invention adopts the iron powder Hybrid Heating of corundum and the 60-90% of 10-40%, iron powder is as Ductile Metals, can serve as bonding agent for toughness reinforcing corundum material, plasticity by metal during heating absorbs applied load, can strengthen the interaction between ceramic phase and Metal Phase, can also make the crackle that ceramic phase produces be shifted or crackle is deflected at ceramic particle place, consume the energy of crack tip; In the present invention, reinforcement is provided with the hole for molten steel casting, the molten steel of casting in hole, reinforcement and mill or grinding roller can be connected to one, molten steel can also infiltrate between the ceramic particle of reinforcement by the hole in reinforcement, ceramic particle is wrapped up wherein, can make ceramic phase and Metal Phase be uniformly distributed.
Accompanying drawing explanation
Fig. 1 is the structural representation of reinforcement in the present invention.
Reference numeral: 1, reinforcement, 2, arc notch, 3, arc convex, 4, hole, 5, side plate.
The specific embodiment
Below in conjunction with specific embodiment, the invention will be further described, can be implemented, but illustrated embodiment is not as a limitation of the invention so that those skilled in the art can better understand the present invention also.
For the ceramic on metal reinforcement of vertical mill mill, this reinforcement is arranged in the groove on described mill surface, the mixture that described reinforcement is comprised of corundum and iron powder is made integrative-structure through sintering, wherein, the percentage by weight of corundum and iron powder is: corundum 10-40%, iron powder 60-90%, the particle diameter of corundum in granules is 0.25-0.35cm, described reinforcement is to have spiral portion, the fan-shaped plate body of short arc line portion and both sides side plate, the edge of one of them side plate is provided with the arc notch of indent, the edge of another side plate is provided with the arc convex with the corresponding setting of arc notch, so that making adjacent ceramic on metal reinforcement docks mutually, in reinforcement, be provided with the hole for the molten steel of casting that connects its upper and lower surface, to reinforcement and mill are connected to one.
Embodiment 1
For the ceramic on metal reinforcement of vertical mill mill, this reinforcement is arranged in the groove on described mill surface, the mixture that described reinforcement is comprised of corundum and iron powder is made integrative-structure through sintering, wherein, the percentage by weight of corundum and iron powder is: corundum 10%, iron powder 90%, the particle diameter of corundum in granules is 0.35cm, described reinforcement is to have spiral portion, the fan-shaped plate body of short arc line portion and both sides side plate, the edge of one of them side plate is provided with the arc notch of indent, the edge of another side plate is provided with the arc convex with the corresponding setting of arc notch, so that making adjacent ceramic on metal reinforcement docks mutually, in reinforcement, be provided with the hole for the molten steel of casting that connects its upper and lower surface, to reinforcement and mill are connected to one.
Be used for the preparation method of the ceramic on metal reinforcement of vertical mill mill: by weight percentage, corundum in granules 10%, iron powder 90% that to get the particle diameter made be in advance 0.35cm, after mixing, mixed material being sent into kiln heats, heating-up temperature is 1050-1190 ℃, when being heated to iron powder and melting completely till; Then the molten iron after fusing and the mixture of corundum in granules are inserted in the mould making in advance, the cooling rear demoulding, makes finished product.
Embodiment 2
For the ceramic on metal reinforcement of vertical mill mill, this reinforcement is arranged in the groove on described mill surface, the mixture that described reinforcement is comprised of corundum and iron powder is made integrative-structure through sintering, wherein, the percentage by weight of corundum and iron powder is: corundum 40%, iron powder 60%, the particle diameter of corundum in granules is 0.3cm, described reinforcement is to have spiral portion, the fan-shaped plate body of short arc line portion and both sides side plate, the edge of one of them side plate is provided with the arc notch of indent, the edge of another side plate is provided with the arc convex with the corresponding setting of arc notch, so that making adjacent ceramic on metal reinforcement docks mutually, in reinforcement, be provided with the hole for the molten steel of casting that connects its upper and lower surface, to reinforcement and mill are connected to one.
Be used for the preparation method of the ceramic on metal reinforcement of vertical mill mill: by weight percentage, corundum in granules 40%, iron powder 60% that to get the particle diameter made be in advance 0.3cm, after mixing, mixed material being sent into kiln heats, heating-up temperature is 1260-1450 ℃, when being heated to iron powder and dissolving completely till; Then the molten iron after fusing and the mixture of corundum in granules are inserted in the mould making in advance, the cooling rear demoulding, makes finished product.
For the ceramic on metal reinforcement of vertical mill mill, this reinforcement is arranged in the groove on described mill surface, the mixture that described reinforcement is comprised of corundum and iron powder is made integrative-structure through sintering, wherein, the percentage by weight of corundum and iron powder is: corundum 35%, iron powder 65%, the particle diameter of corundum in granules is 0.25cm, described reinforcement is to have spiral portion, the fan-shaped plate body of short arc line portion and both sides side plate, the edge of one of them side plate is provided with the arc notch of indent, the edge of another side plate is provided with the arc convex with the corresponding setting of arc notch, so that making adjacent ceramic on metal reinforcement docks mutually, in reinforcement, be provided with the hole for the molten steel of casting that connects its upper and lower surface, to reinforcement and mill are connected to one.
Be used for the preparation method of the ceramic on metal reinforcement of vertical mill mill: by weight percentage, corundum in granules 35%, iron powder 65% that to get the particle diameter made be in advance 0.25cm, after mixing, mixed material being sent into kiln heats, heating-up temperature is 1050-1450 ℃, when being heated to iron powder and dissolving completely till; Then the molten iron after fusing and the mixture of corundum in granules are inserted in the mould making in advance, the cooling rear demoulding, makes finished product.
In the present invention, the physical and chemical index of corundum material is: Al
2o
3>=99.4%, Na
2o≤0.4%, SiO
2≤ 0.03%.
Ceramic on metal reinforcement of the present invention has ceramic high strength, high temperature resistant, anti-oxidation characteristics concurrently, has again plasticity and the shock resistance of metal.Corundum in granules and iron powder mixed sintering are made ceramic on metal reinforcement, without adding any additive, iron powder is as Ductile Metals, can serve as bonding agent for toughness reinforcing corundum material, plasticity by metal while firing absorbs applied load, can strengthen the interaction between ceramic phase and Metal Phase, can also make the crackle that ceramic phase produces be shifted or crackle is deflected at ceramic particle place, consume the energy of crack tip, reduce and fire rear retained porosity; Avoided because adopting the impact of the glassy phase that brings of fused alumina zirconia for ceramic lining plate bulk strength, the existence of glassy phase, comparatively strict to its step of preparation process and parameter request, increased its technology difficulty and cost.
In the present invention, reinforcement 1 is the fan-shaped plate body with spiral portion, short arc line portion and both sides side plate 5, the edge of one of them side plate is provided with the arc notch 2 of indent, the edge of another side plate is provided with the arc convex 3 with arc notch 2 corresponding settings, when after the docking of polylith reinforcement, by the hole casting molten steel in reinforcement, make to be consolidated between reinforcement and mill, reinforcement and reinforcement, the projection of arc and breach between reinforcement, can be closely fixed under the effect of molten steel, there is not casting dead angle.In reinforcement 1, be provided with the hole 4 for the molten steel of casting that connects its upper and lower surface, molten steel can infiltrate between the ceramic particle of reinforcement 1 by hole 4, to reinforcement 1 and mill are connected to one, molten steel wraps up ceramic particle wherein, can make ceramic phase and Metal Phase be uniformly distributed, the interfacial combined function excellence of ceramic phase and Metal Phase, can also reduce the residual porosity of heating, under harsh working condition, flushing resistance is better than general ceramic material, has high-wearing feature.
Claims (4)
1. for the ceramic on metal reinforcement of vertical mill mill, this reinforcement is arranged in the groove on described mill surface, the mixture that described reinforcement is comprised of corundum and iron powder is made integrative-structure through sintering, wherein, the percentage by weight of corundum and iron powder is: corundum 10-40%, iron powder 60-90%, the particle diameter of corundum in granules is 0.25-0.35cm, it is characterized in that: described reinforcement is to have spiral portion, the fan-shaped plate body of short arc line portion and both sides side plate, the edge of one of them side plate is provided with the arc notch of indent, the edge of another side plate is provided with the arc convex with the corresponding setting of arc notch, so that making adjacent reinforcement docks mutually, in reinforcement, be provided with the hole for the molten steel of casting that connects its upper and lower surface, to reinforcement and mill are connected to one.
2. the preparation method of the ceramic on metal reinforcement for vertical mill mill according to claim 1, it is characterized in that: by weight percentage, corundum 10-40%, iron powder 60-90% that to get the particle diameter made be in advance 0.25-0.35cm, after mixing, mixed material being sent into kiln heats, heating-up temperature is 1050-1450 ℃, when being heated to iron powder and melting completely till; Then the molten iron after fusing and the mixture of corundum in granules are inserted in the mould making in advance, and the cooling rear demoulding, makes finished product.
3. the preparation method of the ceramic on metal reinforcement for vertical mill mill according to claim 2, is characterized in that: described heating-up temperature is 1260-1450 ℃.
4. the preparation method of the ceramic on metal reinforcement for vertical mill mill according to claim 2, is characterized in that: described heating-up temperature is 1050-1190 ℃.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410000402.1A CN103736559B (en) | 2014-01-02 | 2014-01-02 | For the ceramic on metal reinforcement and preparation method thereof of vertical mill mill |
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| CN201410000402.1A CN103736559B (en) | 2014-01-02 | 2014-01-02 | For the ceramic on metal reinforcement and preparation method thereof of vertical mill mill |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105256162A (en) * | 2015-11-06 | 2016-01-20 | 洛阳鹏飞耐磨材料股份有限公司 | Preparation method for metal ceramic composite |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101173341A (en) * | 2006-11-01 | 2008-05-07 | Aia工程有限公司 | Wear-resistant metal matrix ceramic composite parts and methods of manufacturing thereof |
| JP2009183877A (en) * | 2008-02-06 | 2009-08-20 | Ube Techno Enji Kk | Crushing roller of vertical crusher |
| ES2379424A1 (en) * | 2011-11-08 | 2012-04-26 | Salinas E Hijos, S.L. | Disc for roughing metal surfaces. (Machine-translation by Google Translate, not legally binding) |
| CN102601348A (en) * | 2012-03-15 | 2012-07-25 | 洛阳鹏飞耐火耐磨材料有限公司 | Metal ceramic reinforced body |
| CN102618772A (en) * | 2012-03-15 | 2012-08-01 | 洛阳鹏飞耐火耐磨材料有限公司 | Metal-matrix composite ceramic liner plate and preparation method thereof |
-
2014
- 2014-01-02 CN CN201410000402.1A patent/CN103736559B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101173341A (en) * | 2006-11-01 | 2008-05-07 | Aia工程有限公司 | Wear-resistant metal matrix ceramic composite parts and methods of manufacturing thereof |
| JP2009183877A (en) * | 2008-02-06 | 2009-08-20 | Ube Techno Enji Kk | Crushing roller of vertical crusher |
| ES2379424A1 (en) * | 2011-11-08 | 2012-04-26 | Salinas E Hijos, S.L. | Disc for roughing metal surfaces. (Machine-translation by Google Translate, not legally binding) |
| CN102601348A (en) * | 2012-03-15 | 2012-07-25 | 洛阳鹏飞耐火耐磨材料有限公司 | Metal ceramic reinforced body |
| CN102618772A (en) * | 2012-03-15 | 2012-08-01 | 洛阳鹏飞耐火耐磨材料有限公司 | Metal-matrix composite ceramic liner plate and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105256162A (en) * | 2015-11-06 | 2016-01-20 | 洛阳鹏飞耐磨材料股份有限公司 | Preparation method for metal ceramic composite |
| CN105256162B (en) * | 2015-11-06 | 2017-06-09 | 洛阳鹏飞耐磨材料股份有限公司 | The preparation method of cermet complex |
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| CN103736559B (en) | 2015-11-04 |
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