CN106247028B - A kind of rare earth alloy wear-resistant cast pipe - Google Patents
A kind of rare earth alloy wear-resistant cast pipe Download PDFInfo
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- CN106247028B CN106247028B CN201610736609.4A CN201610736609A CN106247028B CN 106247028 B CN106247028 B CN 106247028B CN 201610736609 A CN201610736609 A CN 201610736609A CN 106247028 B CN106247028 B CN 106247028B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/02—Rigid pipes of metal
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D123/00—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers
- C09D123/02—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D123/04—Homopolymers or copolymers of ethene
- C09D123/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
- F16L57/06—Protection of pipes or objects of similar shape against external or internal damage or wear against wear
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
- F16L58/04—Coatings characterised by the materials used
- F16L58/10—Coatings characterised by the materials used by rubber or plastics
- F16L58/1009—Coatings characterised by the materials used by rubber or plastics the coating being placed inside the pipe
- F16L58/1027—Coatings characterised by the materials used by rubber or plastics the coating being placed inside the pipe the coating being a sprayed layer
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
- F16L58/04—Coatings characterised by the materials used
- F16L58/10—Coatings characterised by the materials used by rubber or plastics
- F16L58/1054—Coatings characterised by the materials used by rubber or plastics the coating being placed outside the pipe
- F16L58/1072—Coatings characterised by the materials used by rubber or plastics the coating being placed outside the pipe the coating being a sprayed layer
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The present invention provides the inner and outer walls of a kind of rare earth alloy wear-resistant cast pipe, including cast tube ontology, cast tube to be covered with corrosion-inhibiting coating, and wear-resistant coating is also covered on the corrosion-inhibiting coating of casting-pipe inner wall.The present invention passes through the improvement to alloy formula, effectively raise the intensity and wearability of cast tube ontology, it is equipped with corrosion-inhibiting coating in the inner and outer wall of cast tube ontology, effectively raise the corrosion resistance of cast tube, wear-resistant coating is increased again in the inner wall of cast tube, further improve the wearability of cast tube, and the wear-resistant coating and corrosion-inhibiting coating on inner wall are combined can generate the effect mutually reinforced each other afterwards, to make cast tube that there is excellent corrosion resistance and wearability, there is higher intensity simultaneously, it is not easy to break, it is applicable to blast furnace coal mill system, deslagging, ash disposal system, metallurgy industry Wei pricks conveying, mine industry coal washing pipeline, chute etc..
Description
Technical field
The present invention relates to a kind of wear-resistant cast pipes, and in particular to a kind of rare earth alloy wear-resistant cast pipe.
Background technology
Cast tube is the pipe of cylinder iron cast molding.Applied to blast furnace coal mill system, deslagging, ash disposal system, metallurgy industry
The cast tube of Wei Zha conveyings, mine industry coal washing pipeline, chute etc., often with more solid particle, stream in the fluid of conveying
There is the inner wall for the pipeline that can scratch when larger particles in body, several pittings so that the inner wall of pipeline is scratched out, and for a long time
These pittings that work just will appear the trend of expansion, thus greatly reduce the service life of pipeline.In order to obtain more high rigidity
And wearability, it generally requires and improves carbon and alloying element content, when carbon content increases, in heat treatment process at Chang Yinre
Reason system is improper to cause material cracked, and existing heat treating regime is difficult to apply to casting high-carbon high-alloy material heat treatment
In.For high-alloy steel materials, high chrome is generally mostly used, also uses high-speed steel and matrix steel sometimes, but effect is less managed
Think.This is because can only partly be smashed conducting forging processing, thus there is coarse M7c3 eutectic carbides in high chrome
Cause obdurability is low to cause wearability poor.Although high-speed steel wearability is very high, there are coarse eutectic carbide, toughness
It is poor, tipping is easy during use, and processing and heat treatment cost are higher.Matrix steel obdurability is preferable, but due to quenching
When carbide almost all dissolve, therefore wearability is not ideal enough.
Invention content
To solve the above problems, the invention discloses a kind of rare earth alloy wear-resistant cast pipes.
In order to reach object above, the present invention provides the following technical solutions：
A kind of rare earth alloy wear-resistant cast pipe, including the inner and outer wall of cast tube ontology, cast tube are covered with corrosion-inhibiting coating, cast tube
It is also covered with wear-resistant coating on the corrosion-inhibiting coating of inner wall,
The cast tube ontology includes the chemical constituent of following mass percent：
C 0.25~0.45%；Cr 0.8~2.3%；Ni 0.4~0.8%；Si 0.6~1.2%；Mn 0.7~1.5%；Mo
0.15~0.22%；Re 0.05~0.2%；P≤0.035%；S ≤0.04%；Surplus is Fe；
The corrosion-inhibiting coating has the chemical constituent of following mass fraction：
30~50 parts of organic siliconresin；10~30 parts of epoxy resin；5~20 parts of perfluoroethylene-propylene；15~20 parts of toluene；
0.05~0.2 part of sodium molybdate；0.03~0.15 part of disodium hydrogen phosphate；0.8~2 part of dispersant；0.6~1.5 part of antifoaming agent；
The wear-resistant coating has the chemical constituent of following mass fraction：
5~12 parts of silicon carbide；10~30 parts of polyvinyl resin；8~15 parts of glass fibre；3~8 parts of alundum (Al2O3)；It is poly-
6~15 parts of ether sulfone resin；3~6 parts of titanium dioxide；5~10 parts of graphite；10~20 parts of adhesive；2~5 parts of curing agent.
Preferably, the dispersant is polyacrylamide, guar gum or fatty acid polyethylene glycol ester.
Preferably, the antifoaming agent is silicone emulsion, the fatty acid ester compounded object of higher alcohols.
Preferably, described adhesive is epoxy resin or phenolic resin.
Preferably, the curing agent is polyethylene polyamine.
Preferably, the thickness of the wear-resistant coating is 0.2~0.6 millimeter.
Preferably, the thickness of the wear-resistant coating is 0.4~1.5 millimeter.
Preferably, the rare earth alloy wear-resistant cast pipe is made by following steps：
（1）Melting, according to the chemical constituent and ratio preparation raw material of cast tube ontology；Using induction melting furnace by the original of preparation
Expect melting, comes out of the stove when alloy mother liquor temperature reaches 1600~1650 DEG C；
（2）Casting, by step（1）In to alloy mother liquor injection centrifugal casting machine in, utilize centrifugal casting technique shape
At tubing；
（3）Surface treatment and heat treatment, are surface-treated casting-pipe inner wall and outer wall, after the completion heat cast tube material
To 1180~1230 DEG C of soaking time≤4h, 1080~1130 DEG C of soaking time≤2h then are cooled to stove, are finally air-cooled to
Room temperature is to get cast tube ontology；
（4）The preparation and spraying of corrosion-inhibiting coating choose raw material according to the chemical constituent of corrosion-inhibiting coating, each raw material are put into mill
The frosted of sand machine stirs evenly after 3~5 hours, anticorrosive paint is obtained, to step（3）Obtained cast tube body outer wall and inner wall carries out
Derusting by sandblasting or chemical pickling derusting, cleaning, phosphorating treatment, anticorrosive paint are sprayed on the inner and outer wall of cast tube ontology,
Form corrosion-inhibiting coating；
（5）The preparation and spraying of wear-resistant coating choose raw material according to the chemical constituent of wear-resistant coating, each raw material are put into mill
The frosted of sand machine stirs evenly after 3~5 hours, obtains wear-resistant paint, and the anti-corrosion that wear-resistant paint is sprayed on to cast tube inner body wall applies
On layer, corrosion-inhibiting coating is formed.
What the present invention obtained has the beneficial effect that：
The present invention effectively raises the intensity and wearability of cast tube ontology, in cast tube by the improvement to alloy formula
The inner and outer wall of ontology is equipped with corrosion-inhibiting coating, effectively raises the corrosion resistance of cast tube, increases again in the inner wall of cast tube
Wear-resistant coating, further improves the wearability of cast tube, and wear-resistant coating on inner wall and corrosion-inhibiting coating be combined after that
The effect mutually reinforced can be generated between this, to make cast tube that there is excellent corrosion resistance and wearability, while being had higher
Intensity, it is not easy to break, be applicable to blast furnace coal mill system, deslagging, ash disposal system, metallurgy industry Wei prick conveying, mine industry
Coal washing pipeline, chute etc..
Specific implementation mode
With reference to embodiment, the present invention is furture elucidated, it should be understood that following specific implementation modes are only used for
It is bright the present invention rather than limit the scope of the invention.
Embodiment 1
A kind of rare earth alloy wear-resistant cast pipe, including the inner and outer wall of cast tube ontology, cast tube are covered with corrosion-inhibiting coating, cast tube
It is also covered with wear-resistant coating on the corrosion-inhibiting coating of inner wall,
Cast tube ontology includes the chemical constituent of following mass percent：
C 0.25%；Cr 0.8%；Ni 0.8%；Si 1.2%；Mn 0.7%；Mo 0.15%；Re 0.05%；P≤0.035%；S
≤0.04%；Surplus is Fe；
Corrosion-inhibiting coating has the chemical constituent of following mass fraction：
30 parts of organic siliconresin；30 parts of epoxy resin；20 parts of perfluoroethylene-propylene；15 parts of toluene；0.05 part of sodium molybdate；Phosphorus
0.03 part of sour disodium hydrogen；0.8 part of polyacrylamide；1.5 parts of silicone emulsion；
Wear-resistant coating has the chemical constituent of following mass fraction：
5 parts of silicon carbide；10 parts of polyvinyl resin；15 parts of glass fibre；8 parts of alundum (Al2O3)；15 parts of polyethersulfone resin；Two
3 parts of titanium oxide；5 parts of graphite；20 parts of epoxy resin；2 parts of polyethylene polyamine.
Above-mentioned rare earth alloy wear-resistant cast pipe is made by following steps：
（1）Melting, according to the chemical constituent and ratio preparation raw material of cast tube ontology；Using induction melting furnace by the original of preparation
Expect melting, comes out of the stove when alloy mother liquor temperature reaches 1600 DEG C；
（2）Casting, by step（1）In to alloy mother liquor injection centrifugal casting machine in, utilize centrifugal casting technique shape
At tubing；
（3）Surface treatment and heat treatment, are surface-treated casting-pipe inner wall and outer wall, after the completion heat cast tube material
To 1180 DEG C of soaking time≤4h, 1080 DEG C of soaking time≤2h then are cooled to stove, are finally air-cooled to room temperature to get cast tube
Ontology；
（4）The preparation and spraying of corrosion-inhibiting coating choose raw material according to the chemical constituent of corrosion-inhibiting coating, each raw material are put into mill
The frosted of sand machine stirs evenly after 3 hours, anticorrosive paint is obtained, to step（3）Obtained cast tube body outer wall and inner wall is sprayed
Sand derusts or chemical pickling derusting, cleaning, phosphorating treatment, anticorrosive paint is sprayed on the inner and outer wall of cast tube ontology, shape
At corrosion-inhibiting coating；Coating layer thickness is 0.2 millimeter；
（5）The preparation and spraying of wear-resistant coating choose raw material according to the chemical constituent of wear-resistant coating, each raw material are put into mill
The frosted of sand machine stirs evenly after 3 hours, obtains wear-resistant paint, by wear-resistant paint be sprayed on cast tube inner body wall corrosion-inhibiting coating it
On, corrosion-inhibiting coating is formed, coating layer thickness is 0.4 millimeter.
Embodiment 2
A kind of rare earth alloy wear-resistant cast pipe, including the inner and outer wall of cast tube ontology, cast tube are covered with corrosion-inhibiting coating, cast tube
It is also covered with wear-resistant coating on the corrosion-inhibiting coating of inner wall,
Cast tube ontology includes the chemical constituent of following mass percent：
C 0.45%；Cr2.3%；Ni 0.4~0.8%；Si 0.6%；Mn 1.5%；Mo0.22%；Re 0.2%；P≤
0.035%；S ≤0.04%；Surplus is Fe；
Corrosion-inhibiting coating has the chemical constituent of following mass fraction：
50 parts of organic siliconresin；10 parts of epoxy resin；5 parts of perfluoroethylene-propylene；20 parts of toluene；0.2 part of sodium molybdate；Phosphoric acid
0.15 part of disodium hydrogen；2 parts of guar gum；0.6 part of silicone emulsion；
Wear-resistant coating has the chemical constituent of following mass fraction：
12 parts of silicon carbide；30 parts of polyvinyl resin；8 parts of glass fibre；3 parts of alundum (Al2O3)；6 parts of polyethersulfone resin；Two
3 parts of titanium oxide；10 parts of graphite；10 parts of epoxy resin；5 parts of polyethylene polyamine.
Above-mentioned rare earth alloy wear-resistant cast pipe is made by following steps：
（1）Melting, according to the chemical constituent and ratio preparation raw material of cast tube ontology；Using induction melting furnace by the original of preparation
Expect melting, comes out of the stove when alloy mother liquor temperature reaches 1650 DEG C；
（2）Casting, by step（1）In to alloy mother liquor injection centrifugal casting machine in, utilize centrifugal casting technique shape
At tubing；
（3）Surface treatment and heat treatment, are surface-treated casting-pipe inner wall and outer wall, after the completion heat cast tube material
To 1230 DEG C of soaking time≤4h, 1130 DEG C of soaking time≤2h then are cooled to stove, are finally air-cooled to room temperature to get cast tube
Ontology；
（4）The preparation and spraying of corrosion-inhibiting coating choose raw material according to the chemical constituent of corrosion-inhibiting coating, each raw material are put into mill
The frosted of sand machine stirs evenly after 5 hours, anticorrosive paint is obtained, to step（3）Obtained cast tube body outer wall and inner wall is sprayed
Sand derusts or chemical pickling derusting, cleaning, phosphorating treatment, anticorrosive paint is sprayed on the inner and outer wall of cast tube ontology, shape
At corrosion-inhibiting coating；Coating layer thickness is 0.6 millimeter；
（5）The preparation and spraying of wear-resistant coating choose raw material according to the chemical constituent of wear-resistant coating, each raw material are put into mill
The frosted of sand machine stirs evenly after 5 hours, obtains wear-resistant paint, by wear-resistant paint be sprayed on cast tube inner body wall corrosion-inhibiting coating it
On, corrosion-inhibiting coating is formed, coating layer thickness is 1.5 millimeters.
Embodiment 3
A kind of rare earth alloy wear-resistant cast pipe, including the inner and outer wall of cast tube ontology, cast tube are covered with corrosion-inhibiting coating, cast tube
It is also covered with wear-resistant coating on the corrosion-inhibiting coating of inner wall,
Cast tube ontology includes the chemical constituent of following mass percent：
C 0.35%；Cr 1.6%；Ni0.6%；Si 0.9%；Mn 1.1%；Mo 0.18%；Re 0.12%；P≤0.035%；S
≤0.04%；Surplus is Fe；
Corrosion-inhibiting coating has the chemical constituent of following mass fraction：
40 parts of organic siliconresin；20 parts of epoxy resin；12 parts of perfluoroethylene-propylene；18 parts of toluene；0.12 part of sodium molybdate；Phosphorus
0.08 part of sour disodium hydrogen；1.4 parts of fatty acid polyethylene glycol ester；1 part of silicone emulsion；
Wear-resistant coating has the chemical constituent of following mass fraction：
8 parts of silicon carbide；20 parts of polyvinyl resin；12 parts of glass fibre；5 parts of alundum (Al2O3)；10 parts of polyethersulfone resin；Two
4 parts of titanium oxide；8 parts of graphite；15 parts of phenolic resin；3 parts of polyethylene polyamine.
Above-mentioned rare earth alloy wear-resistant cast pipe is made by following steps：
（1）Melting, according to the chemical constituent and ratio preparation raw material of cast tube ontology；Using induction melting furnace by the original of preparation
Expect melting, comes out of the stove when alloy mother liquor temperature reaches 1620 DEG C；
（2）Casting, by step（1）In to alloy mother liquor injection centrifugal casting machine in, utilize centrifugal casting technique shape
At tubing；
（3）Surface treatment and heat treatment, are surface-treated casting-pipe inner wall and outer wall, after the completion heat cast tube material
To 1200 DEG C of soaking time≤4h, 1100 DEG C of soaking time≤2h then are cooled to stove, are finally air-cooled to room temperature to get cast tube
Ontology；
（4）The preparation and spraying of corrosion-inhibiting coating choose raw material according to the chemical constituent of corrosion-inhibiting coating, each raw material are put into mill
The frosted of sand machine stirs evenly after 4 hours, anticorrosive paint is obtained, to step（3）Obtained cast tube body outer wall and inner wall is sprayed
Sand derusts or chemical pickling derusting, cleaning, phosphorating treatment, anticorrosive paint is sprayed on the inner and outer wall of cast tube ontology, shape
At corrosion-inhibiting coating；Coating layer thickness is 0.4 millimeter；
（5）The preparation and spraying of wear-resistant coating choose raw material according to the chemical constituent of wear-resistant coating, each raw material are put into mill
The frosted of sand machine stirs evenly after 4 hours, obtains wear-resistant paint, by wear-resistant paint be sprayed on cast tube inner body wall corrosion-inhibiting coating it
On, corrosion-inhibiting coating is formed, coating layer thickness is 0.8 millimeter.
After tested, the mechanical performance of rare earth alloy wear-resistant cast pipe made from embodiment 1 to 3 is as shown in table 1：
Table 1：The mechanical performance of rare earth alloy wear-resistant cast pipe
The technical means disclosed in the embodiments of the present invention is not limited only to the technological means disclosed in the above embodiment, further includes
By the above technical characteristic arbitrarily the formed technical solution of combination.It should be pointed out that for those skilled in the art
For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (8)
1. a kind of rare earth alloy wear-resistant cast pipe, which is characterized in that the inner and outer wall including cast tube ontology, cast tube is covered with anti-corrosion
Coating is also covered with wear-resistant coating on the corrosion-inhibiting coating of casting-pipe inner wall,
The cast tube ontology includes the chemical constituent of following mass percent：
C 0.25~0.45%；Cr 0.8~2.3%；Ni 0.4~0.8%；Si 0.6~1.2%；Mn 0.7~1.5%；Mo 0.15
~0.22%；Re 0.05~0.2%； P≤0.035%；S ≤0.04%；Surplus is Fe；
The corrosion-inhibiting coating has the chemical constituent of following mass fraction：
30~50 parts of organic siliconresin；10~30 parts of epoxy resin；5~20 parts of perfluoroethylene-propylene；15~20 parts of toluene；Molybdic acid
0.05~0.2 part of sodium；0.03~0.15 part of disodium hydrogen phosphate；0.8~2 part of dispersant；0.6~1.5 part of antifoaming agent；
The wear-resistant coating has the chemical constituent of following mass fraction：
5~12 parts of silicon carbide；10~30 parts of polyvinyl resin；8~15 parts of glass fibre；3~8 parts of alundum (Al2O3)；Polyether sulfone
6~15 parts of resin；3~6 parts of titanium dioxide；5~10 parts of graphite；10~20 parts of adhesive；2~5 parts of curing agent.
2. rare earth alloy wear-resistant cast pipe as described in claim 1, which is characterized in that the dispersant is polyacrylamide, Gu
That glue or fatty acid polyethylene glycol ester.
3. rare earth alloy wear-resistant cast pipe as described in claim 1, which is characterized in that the antifoaming agent is silicone emulsion, high-carbon
Polyol fatty acid ester complexes.
4. rare earth alloy wear-resistant cast pipe as described in claim 1, which is characterized in that described adhesive is epoxy resin or phenolic aldehyde
Resin.
5. rare earth alloy wear-resistant cast pipe as described in claim 1, which is characterized in that the curing agent is polyethylene polyamine.
6. rare earth alloy wear-resistant cast pipe as described in claim 1, which is characterized in that the thickness of the wear-resistant coating be 0.2~
0.6 millimeter.
7. rare earth alloy wear-resistant cast pipe as described in claim 1, which is characterized in that the thickness of the wear-resistant coating be 0.4~
1.5 millimeter.
8. rare earth alloy wear-resistant cast pipe as described in claim 1, which is characterized in that the rare earth alloy wear-resistant cast pipe by with
Lower step is made：
（1）Melting, according to the chemical constituent and ratio preparation raw material of cast tube ontology；The raw material of preparation is melted using induction melting furnace
Refining, comes out of the stove when alloy mother liquor temperature reaches 1600~1650 DEG C；
（2）Casting, by step（1）In to alloy mother liquor injection centrifugal casting machine in, utilize centrifugal casting technique formed pipe
Material；
（3）Surface treatment and heat treatment, are surface-treated casting-pipe inner wall and outer wall, are after the completion heated to cast tube material
Then 1180~1230 DEG C of soaking time≤4h are cooled to 1080~1130 DEG C of soaking time≤2h with stove, are finally air-cooled to room
Temperature is to get cast tube ontology；
（4）The preparation and spraying of corrosion-inhibiting coating choose raw material according to the chemical constituent of corrosion-inhibiting coating, each raw material are put into grinding machine
Frosted stirs evenly after 3~5 hours, obtains anticorrosive paint；To step（3）Obtained cast tube body outer wall and inner wall carries out sandblasting
Derusting or chemical pickling derusting, cleaning, phosphorating treatment, anticorrosive paint are sprayed on the inner and outer wall of cast tube ontology, are formed
Corrosion-inhibiting coating；
（5）The preparation and spraying of wear-resistant coating choose raw material according to the chemical constituent of wear-resistant coating, each raw material are put into grinding machine
Frosted stirs evenly after 3~5 hours, obtains wear-resistant paint, by wear-resistant paint be sprayed on cast tube inner body wall corrosion-inhibiting coating it
On, form corrosion-inhibiting coating.
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| CN114213935B (en) * | 2021-12-22 | 2022-08-12 | 广东美涂士建材股份有限公司 | High-temperature-resistant wear-resistant alloy high-performance industrial coating and preparation method thereof |
| CN116475040A (en) * | 2023-04-19 | 2023-07-25 | 成都初肆柒叁科技有限公司 | Mechanical part anti-corrosion coating spraying process |
| CN116925641B (en) * | 2023-09-18 | 2024-01-02 | 成都石大力盾科技有限公司 | Wear-resistant wax-proof coating and preparation method thereof |
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| CN103277629A (en) * | 2013-06-09 | 2013-09-04 | 严建山 | Abrasion resistant cast tube with high temperature oxidation resistant anticorrosive coating |
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| CN104455780A (en) * | 2014-10-22 | 2015-03-25 | 中国水利水电第十工程局有限公司 | Pressure backfill-type anti-corrosion pipe |
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| JPS54123518A (en) * | 1978-03-20 | 1979-09-25 | Furukawa Electric Co Ltd:The | Corrosion resistant, wear resistant, high permeability alloy |
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| CN1965190A (en) * | 2004-05-20 | 2007-05-16 | 加拿大纸浆和纸张研究所 | Corrosion-resistant exterior alloy for composite tubes |
| CN103277629A (en) * | 2013-06-09 | 2013-09-04 | 严建山 | Abrasion resistant cast tube with high temperature oxidation resistant anticorrosive coating |
| CN104197110A (en) * | 2014-08-20 | 2014-12-10 | 无锡市博阳超声电器有限公司 | Corrosion-resisting heat supply steel pipe structure |
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