CN103058689A - Medium-density high-alumina casting material - Google Patents
Medium-density high-alumina casting material Download PDFInfo
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- CN103058689A CN103058689A CN2013100291680A CN201310029168A CN103058689A CN 103058689 A CN103058689 A CN 103058689A CN 2013100291680 A CN2013100291680 A CN 2013100291680A CN 201310029168 A CN201310029168 A CN 201310029168A CN 103058689 A CN103058689 A CN 103058689A
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Abstract
The invention discloses a medium-density high-alumina casting material. The medium-density high-alumina casting material comprises the following raw material components in parts by weight: 21-36 parts of high-alumina bauxite aggregate, 10-24 parts of 0-3mm high-alumina bauxite granules, 21-27 parts of high-alumina bauxite powder of not more than 180 meshes, 10-30 parts of lightweight aggregate, 6-15 parts of bonding agent, 0-3 parts of steel fiber and 8-11 parts of water. The medium-density high-alumina casting material disclosed by the invention has the advantages of low heat conductivity, good thermal shock resistance and light weight.
Description
Technical field
The present invention relates to technical field of refractory materials, especially relate to a kind of middle density high alumina castable.
Background technology
Mould material is a kind of particulate state that adds a certain amount of wedding agent and make in refractory material and the mixture of powder material.Mould material has than high workability, is applicable to the unshape refractory with the pouring type moulding.Compare with other amorphous refractories, wedding agent and moisture content are higher in the mould material, and be better mobile, easy to use without sintering, can be selected used material and wedding agent according to working conditions, so range of application is wider.This mould material both can directly pour into the lining body and use, and can also pour into a mould or bumping method is made prefabricated section and used.
A kind of as mould material, high alumina castable is take alumine as aggregate and powder adds the prepared refractory castable of some wedding agents.This high alumina castable has than characteristics great, that physical strength is high, wear resistance is good, but its thermal shock resistance is slightly poor, mainly is used as the inner lining material of the various kilns such as boiler, blast funnace hot blast stove, process furnace, ceramic kiln.Because the thermal conductivity of this high alumina castable itself is larger, under the condition that satisfies intensity, use temperature and wear resisting property, usually adopt to increase mould material thickness or increase thermal protection layer and reduce heat lost by radiation, this is so that weight of equipment and volume increase, and materials consumption and cost increase.
Summary of the invention
The purpose of this invention is to provide a kind of middle density high alumina castable, it has, and thermal conductivity is low, thermal shock resistance is excellent, and lightweight characteristics.
The technical solution adopted in the present invention is: middle density high alumina castable, by weight, its feed composition is: 21 ~ 36 parts in alumine aggregate, 10 ~ 24 parts of 0 ~ 3mm alumine particulate material, be not more than 21 ~ 27 parts in 180 height of eye bauxitic clay powder, 10 ~ 30 parts of aglites, 6 ~ 15 parts of wedding agents, 0 ~ 3 part of steel fiber, 8 ~ 11 parts in water.
The granularity of described alumine aggregate is a kind of among 3 ~ 5mm, 3 ~ 8mm, 3 ~ 10mm, the 3 ~ 20mm.
Described aglite is one or more in corundum bollow ball, alumina hollow ball, Magnalium hollow ball, hollow chrome corundum spheres, Zirconia corundum hollow sphere, the corundum-mullite hollow ball.
Described wedding agent is aluminous cement or high-alumina cement.
The density of described middle density high alumina castable is 1.8 ~ 2.3g/cm
3
The advantage that the present invention has is: middle density high alumina castable of the present invention has been introduced suitable aglite in high alumina castable, make it have the advantages such as thermal conductivity is low, thermal shock resistance good, lightweight, be particularly suitable for being applied to the stove of the resistance to reduction such as chemical industry, waste incineration, can reduce heat lost by radiation in the use procedure, reduce the energy and equipment dynamic consumption, play the effect that improves Working environment and energy-saving and emission-reduction.
Embodiment
Embodiment 1:
The preparation of middle density high alumina castable may further comprise the steps:
1) get the raw materials ready:
Alumine aggregate 23kg, granularity is: 3 ~ 5mm;
0 ~ 3mm alumine particle 10kg;
Be not more than 180 height of eye bauxitic clay powder 27kg;
Aglite 30kg, aglite is: 0 ~ 3mm corundum bollow ball;
Wedding agent 10kg, wedding agent is: aluminous cement;
Water 11kg.
2) after being proportioned, above-mentioned raw materials in stirrer, stirs, vibration casting, and density is 1.8 g/cm
3, form finished product 1.
Embodiment 2:
The preparation of middle density high alumina castable may further comprise the steps:
1) get the raw materials ready:
Alumine aggregate 24kg, granularity is: 3 ~ 8mm;
0 ~ 3mm alumine particle 14kg;
Be not more than 180 height of eye bauxitic clay powder 22kg;
Aglite 25kg, aglite is: 0 ~ 5mm alumina hollow ball;
Wedding agent 15kg, wedding agent is: high-alumina cement;
Steel fiber 1kg;
Water 9.1kg.
2) after being proportioned, above-mentioned raw materials in stirrer, stirs, vibration casting, and density is 1.9g/cm
3, form finished product 2.
Embodiment 3:
The preparation of middle density high alumina castable may further comprise the steps:
1) get the raw materials ready:
Alumine aggregate 21kg, granularity is: 3 ~ 10mm;
0 ~ 3mm alumine particle 18kg;
Be not more than 180 height of eye bauxitic clay powder 23kg;
Aglite 30kg, aglite is: 0 ~ 1mm Magnalium hollow ball 10kg, 0 ~ 1mm Zirconia corundum hollow sphere 10kg, 0 ~ 1mm hollow chrome corundum spheres 10kg;
Wedding agent 6kg, wedding agent is: high-alumina cement;
Water 8.7kg.
2) after being proportioned, above-mentioned raw materials in stirrer, stirs, vibration casting, and density is 2.1g/cm
3, form finished product 3.
Embodiment 4:
The preparation of middle density high alumina castable may further comprise the steps:
1) get the raw materials ready:
Alumine aggregate 31kg, granularity is: 3 ~ 10mm;
0 ~ 3mm alumine particle 20kg;
Be not more than 180 height of eye bauxitic clay powder 22kg;
Aglite 15kg, aglite is: 0 ~ 3mm Magnalium hollow ball 10kg, 0 ~ 1mm corundum-mullite hollow ball 5kg;
Wedding agent 12kg, wedding agent is: aluminous cement;
Water 8.2kg.
2) after being proportioned, above-mentioned raw materials in stirrer, stirs, vibration casting, and density is 2.2g/cm
3, form finished product 4.
Embodiment 5:
The preparation of middle density high alumina castable may further comprise the steps:
1) get the raw materials ready:
Alumine aggregate 36kg, granularity is: 3 ~ 20mm;
0 ~ 3mm alumine particle 24kg;
Be not more than 180 height of eye bauxitic clay powder 21kg;
Aglite 10kg, aglite is: 0 ~ 5mm Magnalium hollow ball;
Wedding agent 9kg, wedding agent is: aluminous cement;
Steel fiber 3kg;
Water 8kg.
2) after being proportioned, above-mentioned raw materials in stirrer, stirs, vibration casting, and density is 2.3g/cm
3, form finished product 5.
Embodiment 6:
Identical with embodiment 1, difference only is: aglite is hollow chrome corundum spheres.The density of prepared middle density high alumina castable is 1.85 g/cm
3, form finished product 6.
Embodiment 7:
Identical with embodiment 2, difference only is: aglite is Zirconia corundum hollow sphere.The density of prepared middle density high alumina castable is 1.88 g/cm
3, form finished product 7.
Embodiment 8:
Identical with embodiment 5, difference only is: aglite is the corundum-mullite hollow ball.The density of prepared middle density high alumina castable is 1.84 g/cm
3, form finished product 8.
Embodiment 9:
Identical with embodiment 1, difference only is: aglite is that any 2 kinds arbitrary proportion in corundum bollow ball, alumina hollow ball, Magnalium hollow ball, hollow chrome corundum spheres, Zirconia corundum hollow sphere, the corundum-mullite hollow ball mixes.The density of prepared middle density high alumina castable is 1.8 g/cm
3, form finished product 9.
Embodiment 10:
Identical with embodiment 1, difference only is: aglite is that any 3 kinds arbitrary proportion in corundum bollow ball, alumina hollow ball, Magnalium hollow ball, hollow chrome corundum spheres, Zirconia corundum hollow sphere, the corundum-mullite hollow ball mixes.The density of prepared middle density high alumina castable is 1.9 g/cm
3, form finished product 10.
Embodiment 11:
Identical with embodiment 1, difference only is: aglite is that any 4 kinds arbitrary proportion in corundum bollow ball, alumina hollow ball, Magnalium hollow ball, hollow chrome corundum spheres, Zirconia corundum hollow sphere, the corundum-mullite hollow ball mixes.The density of prepared middle density high alumina castable is 1.93g/cm
3, form finished product 11.
Embodiment 12:
Identical with embodiment 1, difference only is: aglite is that any 5 kinds arbitrary proportion in corundum bollow ball, alumina hollow ball, Magnalium hollow ball, hollow chrome corundum spheres, Zirconia corundum hollow sphere, the corundum-mullite hollow ball mixes.The density of prepared middle density high alumina castable is 1.92g/cm
3, form finished product 12.
Embodiment 13:
Identical with embodiment 1, difference only is: aglite is that the arbitrary proportion of corundum bollow ball, alumina hollow ball, Magnalium hollow ball, hollow chrome corundum spheres, Zirconia corundum hollow sphere, corundum-mullite hollow ball mixes.The density of prepared middle density high alumina castable is 1.98g/cm
3, form finished product 13.
The effect example:
Through the routine experiment, the performance perameter that various embodiments of the present invention form finished product sees the following form:
| The finished product sequence number | Thermal conductivity (W/m.k) | Thermal shock resistance parameter (inferior) |
| 1 | 0.82 | 23 |
| 2 | 0.97 | 28 |
| 3 | 1.12 | 26 |
| 4 | 1.27 | 24 |
| 5 | 1.35 | 26 |
| 6 | 0.95 | 28 |
| 7 | 0.90 | 25 |
| 8 | 0.89 | 27 |
| 9 | 0.78 | 30 |
| 10 | 0.96 | 27 |
| 11 | 0.98 | 26 |
| 12 | 0.96 | 28 |
| 13 | 1.03 | 26 |
Wherein, the mensuration of thermal conductivity is carried out according to GB/T 5990-2006; The thermal shock resistance parametric measurement carries out according to YB4018-91.
As seen from the above table: because the thermal conductivity of common high alumina castable is 1.6 ~ 1.8 W/m.k, thermal shock resistance is more than 20 times, density is 2.5 ~ 2.8 g/cm
3, middle density high alumina castable of the present invention has the advantages such as thermal conductivity is low, thermal shock resistance good, lightweight.
The above only is the preferred embodiments of the present invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes description of the present invention to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (5)
1. middle density high alumina castable, by weight, its feed composition is: 21 ~ 36 parts in alumine aggregate, 10 ~ 24 parts of 0 ~ 3mm alumine particulate material are not more than 21 ~ 27 parts in 180 height of eye bauxitic clay powder, 10 ~ 30 parts of aglites, 6 ~ 15 parts of wedding agents, 0 ~ 3 part of steel fiber, 8 ~ 11 parts in water.
2. middle density high alumina castable according to claim 1 is characterized in that: the granularity of described alumine aggregate is a kind of among 3 ~ 5mm, 3 ~ 8mm, 3 ~ 10mm, the 3 ~ 20mm.
3. middle density high alumina castable according to claim 1, it is characterized in that: described aglite is one or more in corundum bollow ball, alumina hollow ball, Magnalium hollow ball, hollow chrome corundum spheres, Zirconia corundum hollow sphere, the corundum-mullite hollow ball.
4. middle density high alumina castable according to claim 1, it is characterized in that: described wedding agent is aluminous cement or high-alumina cement.
5. each described middle density high alumina castable in 4 according to claim 1, it is characterized in that: the density of described middle density high alumina castable is 1.8 ~ 2.3g/cm
3
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105000894A (en) * | 2015-07-05 | 2015-10-28 | 石倩文 | Novel refractory castable |
| CN105036768A (en) * | 2015-07-05 | 2015-11-11 | 石倩文 | High-performance castable |
| CN107344857A (en) * | 2017-06-20 | 2017-11-14 | 长兴兴鹰新型耐火建材有限公司 | A kind of high-strength low heat conductivity fire resisting energy-conservation castable and preparation method thereof |
| CN107759233A (en) * | 2016-08-19 | 2018-03-06 | 张丽媛 | A kind of insulated pouring material |
| CN112919890A (en) * | 2021-03-24 | 2021-06-08 | 浙江吉昌新材料有限公司 | Light mullite-alumina hollow sphere-aluminum titanate sagger and preparation method and application thereof |
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| WO2006069411A1 (en) * | 2004-12-29 | 2006-07-06 | Gerhard Melcher | Moldable material consisting of articles coated with a coating material and use thereof for producing molded elements |
| CN1931783A (en) * | 2006-10-12 | 2007-03-21 | 洛阳鹏飞耐火材料有限公司 | Hot cast high temperature wear resistant ceramic material |
| CN102101784A (en) * | 2011-02-22 | 2011-06-22 | 佘成其 | Lightweight reformed main iron runner pouring material |
| CN102491768A (en) * | 2011-12-06 | 2012-06-13 | 安徽瑞泰新材料科技有限公司 | Composite bonding wear-resistant castable refractory |
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2013
- 2013-01-25 CN CN2013100291680A patent/CN103058689A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006069411A1 (en) * | 2004-12-29 | 2006-07-06 | Gerhard Melcher | Moldable material consisting of articles coated with a coating material and use thereof for producing molded elements |
| CN1931783A (en) * | 2006-10-12 | 2007-03-21 | 洛阳鹏飞耐火材料有限公司 | Hot cast high temperature wear resistant ceramic material |
| CN102101784A (en) * | 2011-02-22 | 2011-06-22 | 佘成其 | Lightweight reformed main iron runner pouring material |
| CN102491768A (en) * | 2011-12-06 | 2012-06-13 | 安徽瑞泰新材料科技有限公司 | Composite bonding wear-resistant castable refractory |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105000894A (en) * | 2015-07-05 | 2015-10-28 | 石倩文 | Novel refractory castable |
| CN105036768A (en) * | 2015-07-05 | 2015-11-11 | 石倩文 | High-performance castable |
| CN107759233A (en) * | 2016-08-19 | 2018-03-06 | 张丽媛 | A kind of insulated pouring material |
| CN107344857A (en) * | 2017-06-20 | 2017-11-14 | 长兴兴鹰新型耐火建材有限公司 | A kind of high-strength low heat conductivity fire resisting energy-conservation castable and preparation method thereof |
| CN107344857B (en) * | 2017-06-20 | 2019-09-06 | 长兴兴鹰新型耐火建材有限公司 | A kind of high-strength low heat conductivity fire resisting energy conservation castable and preparation method thereof |
| CN112919890A (en) * | 2021-03-24 | 2021-06-08 | 浙江吉昌新材料有限公司 | Light mullite-alumina hollow sphere-aluminum titanate sagger and preparation method and application thereof |
| CN112919890B (en) * | 2021-03-24 | 2023-01-03 | 浙江吉昌新材料有限公司 | Light mullite-alumina hollow sphere-aluminum titanate sagger and preparation method and application thereof |
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Effective date of registration: 20130819 Address after: 313000, Zhejiang, Changxin economic and Technological Development Zone, Taihu Avenue and four road intersection, two science and Technology Pioneer Park, plant No. three, on the first floor of the east side of Changxing County Applicant after: CHANGXING LUOKA TECHNOLOGY CO., LTD. Address before: 215000 Jiangsu city of Suzhou province high tech Industrial Development Zone, kolding Road No. 78 Applicant before: Suzhou Low Carbon Energy Saving Technology Co., Ltd. |
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