CN105985109A - Modified ceramic lining material with chromic oxide - Google Patents

Modified ceramic lining material with chromic oxide Download PDF

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CN105985109A
CN105985109A CN201511013166.8A CN201511013166A CN105985109A CN 105985109 A CN105985109 A CN 105985109A CN 201511013166 A CN201511013166 A CN 201511013166A CN 105985109 A CN105985109 A CN 105985109A
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powder
parts
mixed
lining material
chromic oxide
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高恒东
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Wuhu Chuangyuan New Materials Co Ltd
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Wuhu Chuangyuan New Materials Co Ltd
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Abstract

The invention discloses a modified ceramic lining material with chromic oxide. The modified ceramic lining material is prepared from, by weight, 54-56 parts of pure aluminum powder, 159-162 parts of iron oxide red, 18-19 parts of cobalt nitrate, 18-19 parts of nickel chloride, 37-38 parts of tetraethoxysilane, 74-76 parts of absolute ethyl alcohol, 10-11.5 parts of nano Y-ZrO2 powder, 8.5-9.5 parts of sodium tetraborate, 9-10 parts of chromic oxide, 1.5-2 parts of glass glaze materials, 3-4 parts of andalusite powder, 2-3 parts of kaolin, 1.5-2 parts of silver oxide powder and appropriate amount of deionized water. By addition of chromic oxide and the like, a coating excellent in particle flattening is formed on a metal surface through reaction, porosity of the coating is decreased, particles are less prone to peeling off in friction, and accordingly abrasion resistance of a ceramic liner is further enhanced. Hydraulic steel pipes prepared with the modified ceramic lining material are quite suitable for special operation environments with high temperature, corrosion, abrasion and the like.

Description

A kind of ceramic lining material adding chromic oxide modification
Technical field
The present invention relates to ceramic technology field, particularly relate to a kind of ceramic lining material adding chromic oxide modification.
Background technology
The pipeline kind used in hydraulic system is a lot, according to operating pressure and the difference of installation site of hydraulic system, selection have steel pipe, copper tube, rubber tube, nylon tube and plastic tube etc..These pipelines once damage leakage of oil, the most then pollute environment, affect the normal performance of systemic-function, heavy then jeopardize safety, and the present invention selects hydraulic steel pipe as object of study.When hydraulic work system, fluid pressure line to bear higher pressure, add alternate stress that pressure transient produces, vibration equipment and produce vibration stress, the common effect of erection stress etc., make hard tube at fault in material, hot spot or injury region produce stress concentration phenomenon, pipeline generation fatigue rupture fracture and leakage of oil；Due also to hydraulic system is easily contaminated, the hydraulic oil containing solid pollutant is similar to the grinding agent that abrasive metal machined surface is used, and adds the friction of fluid and pipeline inner wall.And the hardness of the usual hardness ratio pipe inner wall material of solid pollution composition granule is much higher, thus accelerate the abrasion of pipe inner wall, even scratch inwall, particularly high when the flow velocity of liquid and unstable time, the material of pipe inner wall will be made to be impacted and peel off.These reasons easily cause potential safety hazard.
Centrifugal SHS technology has concentrated the Common advantages of centrifugal casting and SHS technology, and it has manufacturing process and manufacture equipment is simple and production efficiency is high, production cost is low and saves the advantages such as the energy.Utilizing centrifugal self-propagating synthesis technology to prepare ceramic lining material inside tradition stainless steel tube can make hydraulic oil oil pipe have more preferable corrosion resistance, abrasion resistance properties and good mechanical property and shock resistance.Thus, the preparation that this kind of technology is applied to hydraulic oil oil tube inner lining material will have wide market prospect and huge economic and social benefits.With micron aluminium powder and micron iron sesquioxide as primary raw material in " preparation of hydraulic oil oil pipe ceramic lining material and performance study " literary composition, with micron silica and micron Y-ZrO2 as additive, using centrifugal SHS technology to be prepared for hydraulic oil oil pipe ceramic lining material, prepared hydraulic oil oil pipe ceramic lining material has the performances such as good toughness, fracture strength, impact resistance.But owing to self-propagating reaction is the fiercest, in course of reaction, thermal losses is big, the finite thickness that steel pipe inner wall is melted, cause the bond strength of metallurgical binding part limited and there is certain hole, so the tools such as the thermostability of ceramic layer, corrosion resistance, wearability are had a certain impact, under the operating mode of some HI high impacts, there will be the phenomenon that ceramic coating comes off, thus affect service life and the safety coefficient of oil pipe, need to improve on the basis of original text.
Summary of the invention
The object of the invention is contemplated to make up the defect of prior art, it is provided that a kind of ceramic lining material adding chromic oxide modification.
The present invention is achieved by the following technical solutions:
A kind of ceramic lining material adding chromic oxide modification, is prepared by the raw materials in: pure aluminium powder 54-56, iron oxide red 159-162, cobalt nitrate 18-19, Nickel dichloride. 18-19, tetraethyl orthosilicate 37-38, dehydrated alcohol 74-76, nanometer Y-ZrO2 powder 10-11.5, sodium tetraborate 8.5-9.5, chromic oxide 9-10, glass glaze 1.5-2, andalusite powder 3-4, Kaolin 2-3, silver oxide powder 1.5-2, deionized water are appropriate.
Add, according to a kind of described in claims 1, the ceramic lining material that chromic oxide is modified, be made up of step in detail below:
(1) cobalt nitrate is mixed with Nickel dichloride., add in dehydrated alcohol, stirring also fully dissolves formation mixed solution, it is subsequently placed in 60 DEG C of waters bath with thermostatic control, tetraethyl orthosilicate is added drop-wise in mixed solution lentamente, heating in water bath is to 80-90 DEG C, stir 40-50 minute and increase to reactant viscosity, form vitreosol, it is statically placed in gel under room temperature condition, again xerogel is placed in drying baker and is dried 10-12 hour with the temperature of 80-90 DEG C, then under conditions of 750-850 DEG C, xerogel is carried out presintering, it is incubated 1.5-2 hour, take out after being cooled to room temperature and grind, obtain composite granule, i.e. magnetic silica powder body；
(2) put in Muffle furnace after chromic oxide, glass glaze, Kaolin mix homogeneously, sinter 9-10 hour with the temperature of 900-1000 DEG C, the coldest remove rear ball mill pulverizing, mistake 200 mesh sieves, obtain mixed-powder；
(3) mixed-powder that step (2) obtains is mixed with nanometer Y-ZrO2 powder, add the deionized water of total amount 3-4 times amount, it is stirring evenly and then adding into remaining residual components in addition to pure aluminium powder, iron oxide red, continue stirring 30-40 minute, form slurry, finally slurry is spray-dried, forms mixed nanometer mixed powder；
(4) the mixed nanometer mixed powder that the magnetic silica powder body that aluminium powder, iron oxide red obtained with step (1), step (3) obtain is mixed homogeneously, put in ball mill, mixing and ball milling 2-3 hour, it is loaded into after taking-up in tubing, and be fixed on centrifuge, supply igniting, igniting is passed through oxygen simultaneously, oxygen supply continues 4-5 minute, uses centrifugal SHS technology to be formed ceramic-lined at pipe material inner wall.
The invention have the advantage that the present invention utilizes the composition such as cobalt nitrate, Nickel dichloride. to react with tetraethyl orthosilicate, generate cladding cobalt, the earth silicon material of nickel, as additive add to based on aluminium powder, iron oxide red reaction in, silicon dioxide is made to have magnetic, easily it is combined with tubing, is improved the bond strength with tube wall by reaction further；Adding sodium tetraborate, improve inner surface fineness, porosity significantly reduces simultaneously；Adding appropriate nanometer Y-ZrO2 powder, in course of reaction, meeting disperse is in product aluminium sesquioxide, is possible not only to improve Fracture Toughness and the shock resistance of ceramic lining material, ceramic-lined anti-wear performance can be greatly improved simultaneously.
The present invention with the addition of the compositions such as chromic oxide, can form the good coating of particle flattening in metal surface by reaction, reduce the porosity of coating, and when being rubbed, particle is difficult to appearance and peels off, and further enhancing ceramic-lined anti-wear performance；The hydraulic steel pipe made by the present invention is highly suitable for high temperature, corrode and particular job environment such as abrasion.
Detailed description of the invention
A kind of ceramic lining material adding chromic oxide modification, is made up of the raw material of following weight portion (kilogram): pure aluminium powder 54, iron oxide red 159, cobalt nitrate 18, Nickel dichloride. 18, tetraethyl orthosilicate 37, dehydrated alcohol 74, nanometer YZrO2 powder 10, sodium tetraborate 8.5, chromic oxide 9, glass glaze 1.5, andalusite powder 3, Kaolin 2, silver oxide powder 1.5, deionized water are appropriate.
Add, according to a kind of described in claims 1, the ceramic lining material that chromic oxide is modified, be made up of step in detail below:
(1) cobalt nitrate is mixed with Nickel dichloride., add in dehydrated alcohol, stirring also fully dissolves formation mixed solution, it is subsequently placed in 60 DEG C of waters bath with thermostatic control, tetraethyl orthosilicate is added drop-wise in mixed solution lentamente, heating in water bath is to 80 DEG C, stir 40 minutes and increase to reactant viscosity, form vitreosol, it is statically placed in gel under room temperature condition, again xerogel is placed in drying baker and is dried 10 hours with the temperature of 80 DEG C, then under conditions of 750 DEG C, xerogel is carried out presintering, it is incubated 1.5 hours, take out after being cooled to room temperature and grind, obtain composite granule, i.e. magnetic silica powder body；
(2) put in Muffle furnace after chromic oxide, glass glaze, Kaolin mix homogeneously, sinter 9 hours with the temperature of 900 DEG C, the coldest remove rear ball mill pulverizing, mistake 200 mesh sieves, obtain mixed-powder；
(3) mixed-powder that step (2) obtains is mixed with nanometer YZrO2 powder, add the deionized water of total amount 3 times amount, it is stirring evenly and then adding into remaining residual components in addition to pure aluminium powder, iron oxide red, continue stirring 30 minutes, form slurry, finally slurry is spray-dried, forms mixed nanometer mixed powder；
(4) the mixed nanometer mixed powder that the magnetic silica powder body that aluminium powder, iron oxide red obtained with step (1), step (3) obtain is mixed homogeneously, put in ball mill, mixing and ball milling 2 hours, it is loaded into after taking-up in tubing, and be fixed on centrifuge, supply igniting, igniting is passed through oxygen simultaneously, oxygen supply continues 4 minutes, uses centrifugal SHS technology to be formed ceramic-lined at pipe material inner wall.
Material of the present invention is through test, and hardness number is 1377HV, and porosity is 4.1%, and Fracture Toughness is 5.47 MPa m1/2。

Claims (2)

1. one kind is added the ceramic lining material that chromic oxide is modified, it is characterized in that, be prepared by the raw materials in: pure aluminium powder 54-56, iron oxide red 159-162, cobalt nitrate 18-19, Nickel dichloride. 18-19, tetraethyl orthosilicate 37-38, dehydrated alcohol 74-76, nanometer Y-ZrO2 powder 10-11.5, sodium tetraborate 8.5-9.5, chromic oxide 9-10, glass glaze 1.5-2, andalusite powder 3-4, Kaolin 2-3, silver oxide powder 1.5-2, deionized water are appropriate.
A kind of ceramic lining material adding chromic oxide modification, it is characterised in that be made up of step in detail below:
(1) cobalt nitrate is mixed with Nickel dichloride., add in dehydrated alcohol, stirring also fully dissolves formation mixed solution, it is subsequently placed in 60 DEG C of waters bath with thermostatic control, tetraethyl orthosilicate is added drop-wise in mixed solution lentamente, heating in water bath is to 80-90 DEG C, stir 40-50 minute and increase to reactant viscosity, form vitreosol, it is statically placed in gel under room temperature condition, again xerogel is placed in drying baker and is dried 10-12 hour with the temperature of 80-90 DEG C, then under conditions of 750-850 DEG C, xerogel is carried out presintering, it is incubated 1.5-2 hour, take out after being cooled to room temperature and grind, obtain composite granule, i.e. magnetic silica powder body；
(2) put in Muffle furnace after chromic oxide, glass glaze, Kaolin mix homogeneously, sinter 9-10 hour with the temperature of 900-1000 DEG C, the coldest remove rear ball mill pulverizing, mistake 200 mesh sieves, obtain mixed-powder；
(3) mixed-powder that step (2) obtains is mixed with nanometer Y-ZrO2 powder, add the deionized water of total amount 3-4 times amount, it is stirring evenly and then adding into remaining residual components in addition to pure aluminium powder, iron oxide red, continue stirring 30-40 minute, form slurry, finally slurry is spray-dried, forms mixed nanometer mixed powder；
(4) the mixed nanometer mixed powder that the magnetic silica powder body that aluminium powder, iron oxide red obtained with step (1), step (3) obtain is mixed homogeneously, put in ball mill, mixing and ball milling 2-3 hour, it is loaded into after taking-up in tubing, and be fixed on centrifuge, supply igniting, igniting is passed through oxygen simultaneously, oxygen supply continues 4-5 minute, uses centrifugal SHS technology to be formed ceramic-lined at pipe material inner wall.
CN201511013166.8A 2015-12-31 2015-12-31 Modified ceramic lining material with chromic oxide Withdrawn CN105985109A (en)

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Citations (2)

* Cited by examiner, † Cited by third party
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
CN104404434A (en) * 2014-11-05 2015-03-11 昆明理工大学 Ceramic coating of metal material surface and preparation method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
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
CN104404434A (en) * 2014-11-05 2015-03-11 昆明理工大学 Ceramic coating of metal material surface and preparation method thereof

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Application publication date: 20161005