CN101774801A - Reactive material for preparing ceramic composite steel pipe by adopting self-propagating high-temperature synthesis - Google Patents
Reactive material for preparing ceramic composite steel pipe by adopting self-propagating high-temperature synthesis Download PDFInfo
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- CN101774801A CN101774801A CN201010108501A CN201010108501A CN101774801A CN 101774801 A CN101774801 A CN 101774801A CN 201010108501 A CN201010108501 A CN 201010108501A CN 201010108501 A CN201010108501 A CN 201010108501A CN 101774801 A CN101774801 A CN 101774801A
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Abstract
The invention discloses a reactive material for preparing a ceramic composite steel pipe by adopting self-propagating high-temperature synthesis, comprising aluminum powder, iron oxide powder, silicon dioxide and sodium tetraborate. The invention has the advantages that (1) a ceramic layer has high density and smooth inner surface after using the reactive material; (2) after using the reactive material, the shearing strength and the pressing strength of the composite steel pipe are improved; (3) after using the reactive material, the abrasive resistance and the corrosion resistance of the composite steel pipe are improved, and the service life of the composite steel pipe is prolonged; and (4) the composite steel pipe prepared by using the reactive material can be used in the fields of electric power, mines, metallurgy, petroleum, chemical industry and the like.
Description
Technical field:
The present invention relates to a kind of reaction mass that adopts the synthetic preparation of self propagating high temperature ceramic composite steel pipe.
Background technology:
Self propagating high temperature synthesizes (Self-propagating High-temperature Synthesis, abbreviation SHS), also claiming burning synthetic (CS), is a kind ofly to utilize chemical reaction self heat release to make reaction continue to carry out, the new technology of finally synthetic material requested or goods.This technology is a kind of material new synthetic process that is proposed in the later stage sixties by Russian scientist Merzhanov.Its ultimate principle is to utilize the outside energy that provides to make the partial combustion of high thermopositive reaction system, reaction forms the forward position combustion wave, under self exothermic support, reaction is along with combustion wave continues to push ahead, and reaction is also synthetic to have the products of combustion of specifying composition and structure.USSR (Union of Soviet Socialist Republics) is in the prostatitis in the world at exploitation SHS process aspect, they have obtained the achievement that attracts people's attention at aspects such as powder process, sintering, densification, SHS metallurgy, SHS welding and SHS gas phases over more than 20 year, make the self propagating high temperature synthetic technology become the frontier of modern science and technology, and utilize this technological process to synthesize hundreds of type materials.The SHS technology is imported China in early 1990s, and, less investment simple because of technology, production efficiency advantages of higher cause that very soon China's material circle pays close attention to, and obtain to develop rapidly.
20th century the mid-80, Japanese scholar's Odawara is repaiied professor and is utilized the aluminothermy centrifuging to prepare long 5.5mm, diameter is the composite pipe with ceramic lining of 330mm, and has obtained application.Its principle is to utilize aluminium and brown iron oxide under the reaction molten state, because the density of the density ratio aluminum oxide of iron is big, under action of centrifugal force, the iron that density is big is distributed in the middle of steel pipe and the ceramic layer and with steel pipe and ceramic layer and combines.The major advantage of this technology is: the first, and technology is simple, and material is synthetic to be finished synchronously with densification; The second, equipment cheapness, less investment; The 3rd, synthetics pollutes less, wear-resisting, heat-resisting and solidity to corrosion is good; The 4th, utilized the chemical energy in the synthetic to greatest extent, save energy; The 5th, speed of response is fast, the production efficiency height.Al and Fe
2O
3Reaction formula as follows: 2Al+Fe
2O
3=Al
2O
3+ 2Fe.
When the SHS-centrifuging prepared ceramic composite pipe, the greatest differences of the pottery and the thermal expansivity of steel pipe made ceramic layer have defective with combining of steel pipe, and in the use, ceramic layer is easy to crack, come off, and had a strong impact on its wear resistance, reduction of service life.Admixed with additives can effectively improve the mechanical property of ceramic composite pipe in thermite, and the normal at present additive that adopts has SiO
2, TiO
2, ZrSiO
4, CuO, Na
2B
4O
7Deng.Guo Fuan etc. mention in " Hunan non-ferrous metal journal " 2002 the 18th volumes the 6th phase " research and the application of centrifugal self propagating high temperature synthesize ceramic lined composite steel tube " literary composition and add SiO
2Can increase the erosion resistance and the density of multiple-unit tube ceramic layer, but along with the increase of measuring, hardness descends, crushing strength reduces; Zhang Shuguangs etc. are mentioned in " China YouSe Acta Metallurgica Sinica " 2002 the 12nd volumes the 4th phase " additive is to centrifugal SHS ceramic composite steel pipe weave construction and Effect on Performance " literary composition and are added ZrSiO
4Can effectively improve the multiple-unit tube slip resistance, but can not improve the density of ceramic layer, add TiO
2Density and slip resistance that can ceramic layer, but do not study its erosion resistance; Zhang Weiming etc. mention in " Materials Science and Engineering journal " 2008 the 26th volumes the 1st phase " CuO is to the influence of gravity separation SHS composite pipe with ceramic lining tissue " literary composition, but the thermal discharge of the adding augmenting response of CuO, also hardness and erosion resistance are had a significant effect, but in the reaction O is arranged
2Generate, cause melt to splash, in ceramic melt, form pore easily; Li Dongli etc. are at " heat processing technique " 2000 the 29th volumes the 4th phase " Na
2B
4O
7To centrifugal SHS ceramic-lined composite steel tube structure and Effect on Performance " mention Na in the literary composition
2B
4O
7(sodium tetraborate) adulterated al thermit powder can improve the compression shear strength of multiple-unit tube, but Na
2B
4O
7Content increases, its minute heat of desorption temperature of reaction is reduced, shortened melt in the liquid phase residence time, make bubble not have the sufficient time to overflow, be unfavorable for that porosity reduces, in addition, this additive can not reduce the erosion resistance of ceramic layer.
In the synthetic used prescription of multiple-unit tube of above-mentioned self propagating high temperature, all mention additive, but be single prescription, can only improve the partial properties of composite steel tube.
Summary of the invention:
The object of the present invention is to provide a kind of composite steel tube ceramic layer density height of making and the reaction mass of the synthetic preparation of the employing self propagating high temperature ceramic composite steel pipe that internal surface is smooth, slip resistance and crushing strength improve.
Technical solution of the present invention is:
A kind of reaction mass that adopts the synthetic preparation of self propagating high temperature ceramic composite steel pipe, it is characterized in that: the one-tenth by following mass percent is grouped into:
Aluminium powder 21～24%
Brown iron oxide 62～71%
Silica 1～10%
Sodium tetraborate 1～10%.
Brown iron oxide is the brown iron oxide through 120 ℃-150 ℃ processing in dry 10-12 hour.
Advantage of the present invention is: (1) uses ceramic layer density height behind this reaction mass, and internal surface is smooth.(2) use the slip resistance of composite steel tube behind this reaction mass and crushing strength to improve.(3) use wear resistance, the erosion resistance of this prescription back composite steel tube to be improved, prolong work-ing life.(4) use the composite steel tube of this formulation to can be used on fields such as electric power, mine, metallurgy, oil, chemical industry.
The invention will be further described below in conjunction with embodiment.
Embodiment:
Earlier with brown iron oxide in loft drier in 120 ℃-150 ℃ dry 10-12 hour, and then in mixer, mix with other reaction mass, mixing time 20-30 minute, batch mixing density 1.7-2.0/cm
3
Embodiment 1:
The mixed reaction mass of in steel pipe, packing into: aluminium powder 24%, brown iron oxide 71%, silicon-dioxide 3%, sodium tetraborate 2%.Steel pipe is fixed on the centrifugal device, start centrifugal device, rotating speed is 1300-1900r/min, under the room temperature state, lighting reaction mass can ignite, reaction can make ceramic composite steel pipe, ceramic composite steel pipe porosity≤8.0% of this formulation after finishing, slip resistance 〉=20.5Mpa, crushing strength 〉=395Mpa, ceramic surface is smooth, flawless.
Embodiment 2: the mixed reaction mass of packing in steel pipe: aluminium powder 23%, brown iron oxide 68%, silicon-dioxide 5%, sodium tetraborate 4%.Steel pipe is fixed on the centrifugal device, starts centrifugal device, and rotating speed is 1300-1900r/min, under the room temperature state, lights reaction mass and can ignite, and reaction can make ceramic composite steel pipe after finishing.Ceramic composite steel pipe porosity≤7.2% of this formulation, slip resistance 〉=21.5Mpa, crushing strength 〉=412Mpa, ceramic surface is smooth, flawless.
Embodiment 3: the mixed reaction mass of packing in steel pipe: aluminium powder 22%, brown iron oxide 65%, silicon-dioxide 7%, sodium tetraborate 6%.Steel pipe is fixed on the centrifugal device, starts centrifugal device, and rotating speed is 1300-1900r/min, under the room temperature state, lights reaction mass and can ignite, and reaction can make ceramic composite steel pipe after finishing.Ceramic composite steel pipe porosity≤6.1% of this formulation, slip resistance 〉=18.5Mpa, crushing strength 〉=420Mpa, ceramic surface is smooth, flawless.
Embodiment 4: the mixed reaction mass of packing in steel pipe: aluminium powder 22%, brown iron oxide 67%, silica 1 %, sodium tetraborate 10%.Steel pipe is fixed on the centrifugal device, starts centrifugal device, and rotating speed is 1300-1900r/min, under the room temperature state, lights reaction mass and can ignite, and after reaction finishes, can make ceramic composite steel pipe fully.Ceramic composite steel pipe porosity≤10% of this formulation, slip resistance 〉=20Mpa, crushing strength 〉=385Mpa, ceramic surface is smooth, flawless.
Embodiment 5: the mixed reaction mass of packing in steel pipe: aluminium powder 22%, brown iron oxide 67%, silica 1 0%, sodium tetraborate 1%.Steel pipe is fixed on the centrifugal device, starts centrifugal device, and rotating speed is 1300-1900r/min, under the room temperature state, lights reaction mass and can ignite, and reaction can make ceramic composite steel pipe after finishing.Ceramic composite steel pipe porosity≤5% of this formulation, slip resistance 〉=19Mpa, crushing strength 〉=365Mpa, ceramic surface is smooth, flawless.
Embodiment 6: the mixed reaction mass of packing in steel pipe: aluminium powder 21%, brown iron oxide 62%, silicon-dioxide 9%, sodium tetraborate 8%.Steel pipe is fixed on the centrifugal device, starts centrifugal device, and rotating speed is 1300-1900r/min, under the room temperature state, lights reaction mass and can ignite, and reaction can make ceramic composite steel pipe after finishing.Ceramic composite steel pipe porosity≤6.3% of this formulation, slip resistance 〉=20.2Mpa, crushing strength 〉=390Mpa, ceramic surface is smooth, flawless.
Claims (2)
1. one kind is adopted the synthetic reaction mass for preparing ceramic composite steel pipe of self propagating high temperature, and it is characterized in that: the one-tenth by following mass percent is grouped into:
Aluminium powder 21～24%
Brown iron oxide 62～71%
Silica 1～10%
Sodium tetraborate 1～10%.
2. the reaction mass of the synthetic preparation of employing self propagating high temperature according to claim 1 ceramic composite steel pipe is characterized in that: brown iron oxide is the brown iron oxide through 120 ℃-150 ℃ processing in dry 10-12 hour.
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| CN201010108501A CN101774801A (en) | 2010-02-04 | 2010-02-04 | Reactive material for preparing ceramic composite steel pipe by adopting self-propagating high-temperature synthesis |
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|---|---|---|---|
| CN201010108501A CN101774801A (en) | 2010-02-04 | 2010-02-04 | Reactive material for preparing ceramic composite steel pipe by adopting self-propagating high-temperature synthesis |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102815950A (en) * | 2012-09-06 | 2012-12-12 | 南通大学 | Nano-additive-added reaction material for preparing ceramic lining composite steel tube |
| CN103453234A (en) * | 2013-07-22 | 2013-12-18 | 南通大学 | Structure for increasing strength of centrifugal self-propagating ceramic lined composite steel pipe and production method of structure |
| CN103451647A (en) * | 2013-07-22 | 2013-12-18 | 南通大学 | Preparation method for centrifugal self-propagating ceramic/alloy double-compound wear-resistant tube |
| CN105002494A (en) * | 2015-06-29 | 2015-10-28 | 常州江南冶金科技有限公司 | Silicon-aluminum alloy composite pipeline |
| CN105834402A (en) * | 2016-05-05 | 2016-08-10 | 宁夏常天环保科技有限公司 | Ceramic metal anti-corrosion pipe and forming technology |
| RU2620800C1 (en) * | 2015-12-08 | 2017-05-29 | федеральное государственное автономное образовательное учреждение высшего образования "Казанский (Приволжский) федеральный университет" (ФГАОУ ВО КФУ) | Fused corundum production method |
| CN109822103A (en) * | 2019-03-01 | 2019-05-31 | 中南大学 | A kind of preparation method of high interfacial bonding strength ceramics outer lining steel pipe |
| CN111496474A (en) * | 2020-04-20 | 2020-08-07 | 江苏鑫都管业有限公司 | Method for manufacturing self-propagating ceramic composite steel pipe |
-
2010
- 2010-02-04 CN CN201010108501A patent/CN101774801A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102815950A (en) * | 2012-09-06 | 2012-12-12 | 南通大学 | Nano-additive-added reaction material for preparing ceramic lining composite steel tube |
| CN103453234A (en) * | 2013-07-22 | 2013-12-18 | 南通大学 | Structure for increasing strength of centrifugal self-propagating ceramic lined composite steel pipe and production method of structure |
| CN103451647A (en) * | 2013-07-22 | 2013-12-18 | 南通大学 | Preparation method for centrifugal self-propagating ceramic/alloy double-compound wear-resistant tube |
| CN103453234B (en) * | 2013-07-22 | 2015-04-01 | 南通大学 | Structure for increasing strength of centrifugal self-propagating ceramic lined composite steel pipe and production method of structure |
| CN103451647B (en) * | 2013-07-22 | 2015-04-15 | 南通大学 | Preparation method for centrifugal self-propagating ceramic/alloy double-compound wear-resistant tube |
| CN105002494A (en) * | 2015-06-29 | 2015-10-28 | 常州江南冶金科技有限公司 | Silicon-aluminum alloy composite pipeline |
| CN105002494B (en) * | 2015-06-29 | 2017-11-24 | 常州江南冶金科技有限公司 | Silico-aluminum composite material conduit |
| RU2620800C1 (en) * | 2015-12-08 | 2017-05-29 | федеральное государственное автономное образовательное учреждение высшего образования "Казанский (Приволжский) федеральный университет" (ФГАОУ ВО КФУ) | Fused corundum production method |
| CN105834402A (en) * | 2016-05-05 | 2016-08-10 | 宁夏常天环保科技有限公司 | Ceramic metal anti-corrosion pipe and forming technology |
| CN109822103A (en) * | 2019-03-01 | 2019-05-31 | 中南大学 | A kind of preparation method of high interfacial bonding strength ceramics outer lining steel pipe |
| CN111496474A (en) * | 2020-04-20 | 2020-08-07 | 江苏鑫都管业有限公司 | Method for manufacturing self-propagating ceramic composite steel pipe |
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Application publication date: 20100714 |