CN106497336A - A kind of flow passage component of slurry pump skin patching technique - Google Patents

A kind of flow passage component of slurry pump skin patching technique Download PDF

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Publication number
CN106497336A
CN106497336A CN201611011901.6A CN201611011901A CN106497336A CN 106497336 A CN106497336 A CN 106497336A CN 201611011901 A CN201611011901 A CN 201611011901A CN 106497336 A CN106497336 A CN 106497336A
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CN
China
Prior art keywords
flow passage
passage components
slurry
components surface
repaired
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201611011901.6A
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Chinese (zh)
Inventor
张达明
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Wuxi Mingsheng Textile Machinery Co Ltd
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Wuxi Mingsheng Textile Machinery Co Ltd
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Priority to CN201611011901.6A priority Critical patent/CN106497336A/en
Publication of CN106497336A publication Critical patent/CN106497336A/en
Pending legal-status Critical Current

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    • 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
    • C09D115/00—Coating compositions based on rubber derivatives
    • 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
    • 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
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • 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
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives
    • 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
    • C08L2205/04—Polymer mixtures characterised by other features containing interpenetrating networks

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The invention discloses a kind of flow passage component of slurry pump skin patching technique, which includes：(1) sandblasting roughening is carried out to flow passage components surface to be repaired；(2) by the flow passage components surface acetone after sandblasting roughening and washing with alcohol, dry；(3) according to hard WC ceramic particles, Si3N4The proportioning of nano-particle, graphene fiber and terminal hydroxy liquid rubber modified epoxy resin surplus, makes slurry mix homogeneously；(4) the flow passage components surface to be repaired by the slurry uniform application after the drying, dries at 90 130 DEG C, obtains the multicoat corrosion-resistant coating of abrasion-proof corrosion-proof erosion resisting coating.Flow passage components after repairing of the present invention, through erosion speed be 10m/s, erosion angle be 70 °, the erosion time be continuous erosive wear in continuous 48 hours after, its volume wear is 20% or so of the flow passage components without coating, the coating surface that entirely fills up simultaneously is complete, without peeling.

Description

A kind of flow passage component of slurry pump skin patching technique
Technical field
A kind of the present invention relates to field of material technology, more particularly to flow passage component of slurry pump skin patching technique.
Background technology
Toughness material is adopted centrifugal type slurry pump abrasive wear and corrosivity abrasion centrifugal type slurry pump flow passage components more, its The synergic wear that flow dynamics abrasive wear is made up of micro-ploughing and formation abrasion.Centrifugal type slurry pump runs well During, the fluidised form for flowing through the biphase slurry of liquid defecation in flow passage components is turbulent condition, solid particle (coal, spoil, magnetic in slurry Iron Ore Powder) shape be in random orientation.
With the solid particle that low-angle impacts flow passage components surface, when being contacted with surface with wedge angle, in contact point very little Very high surge will be produced on area, and the vertical component of surge makes solid particle press people's material surface, surge Horizontal component make its along be roughly parallel to flow passage components surface direction movement, make material surface contact point produce horizontal plastic property Deformation, so as to cut out a certain amount of micro-volume material, causes the micro-ploughing of flow passage components.
The solid particle on flow passage components surface is impacted under the vertical component effect of surge with high attack angle, solid is made Grain pressure people material surface forms elastic-plastic deformation, to granule stops press-in motion, ultimately forms irreclaimable plasticity and becomes Shape-impact dent, in the material stacking thing that pit edge has plastic deformation extrusion.Impact pit edge deposit will be squeezed again Deform and shift and peel off from material surface, cause a certain amount of micro-volume material loss, cause the formation abrasion of flow passage components.
Simultaneously as contain various corrosive liquids in the fluid of Pulp pump process, therefore can be rotten on flow passage components surface Erosion causes indenture, erosional surface etc..
Content of the invention
It is an object of the invention to a kind of flow passage component of slurry pump skin patching technique is proposed, can be by the flow passage components Repaired on surface.
It is that the present invention is employed the following technical solutions up to this purpose：
A kind of flow passage component of slurry pump skin patching technique, which includes：
(1) sandblasting roughening is carried out to flow passage components surface to be repaired；
(2) by the flow passage components surface acetone after sandblasting roughening and washing with alcohol, dry；
(3) 20-65wt%, Si are accounted for according to hard WC ceramic particles3N4Nano-particle accounts for 5-15wt%, graphene fiber 2- 10wt% and the proportioning of terminal hydroxy liquid rubber modified epoxy resin surplus, make slurry mix homogeneously；
(4) the flow passage components surface to be repaired by the slurry uniform application after the drying, dries at 90-130 DEG C, obtains Cladding is in flow passage components surface WC-Si3N4The terminal hydroxy liquid rubber modified epoxy resin abrasion-proof corrosion-proof of-graphene fiber doping The multicoat corrosion-resistant coating of erosion resisting coating.
The present invention is by the one layer of slurry of flow passage components surface-coated that be abraded of being corroded, various corruption filled up by the slurry Erosion pit or crack, and smooth appearance is formed on whole flow passage components surface.By laser reinforcing, in dried slurry WC-Si3N4The pit and crack are filled up smooth by ceramic particle, graphene fiber and epoxy resin.Do not have corrosion or abrasion Position, also by WC-Si3N4Ceramic particle, graphene fiber and epoxy resin dry to form hardening coat, play a protective role.
The present invention improves both compatibilitys, and shape using the liquid rubber modified epoxy resin containing terminal functionality Into inierpeneirating network structure or half interpenetrating network structure, as terminal functionality liquid rubber contains butadiene long-chain, itself tool There is preferable pliability, the modified epoxy that therefore present invention is adopted has toughness, the nonmetallic painting that therefore which prepares Layer good toughness, hardness are high, overcome the defect that conventional coatings hardness can not be taken into account with toughness.
The preparation method of terminal hydroxy liquid rubber modified epoxy resin of the present invention is the state of the art, this Art personnel can be selected in the range of prior art.Typical but non-limiting example is as follows：
First by terminal hydroxyl polybutadiene liquid rubber or end hydroxy butadiene/acrylonitrile liquid rubber and polyisocyanates Polyisocyanates terminated polybutadiene liquid rubber prepolymer is produced in reaction or polyisocyanates polybutadiene/acrylonitrile liquid rubber is pre- Then the prepolymer is reacted with epoxy resin, prepares terminal hydroxy liquid rubber modified epoxy resin by polymers.
The terminal hydroxy liquid rubber modified epoxy resin that the present invention is adopted, terminal hydroxyl polybutadiene liquid rubber is introduced by which In the cross-linked network of epoxy resin, play toughening effect, due between terminal hydroxy liquid rubber and various modified components with chemistry Bond is closed, and not only can retain the high-adhesion energy between epoxy resin and metal, and there is liquid rubber high flexible again Property, thus obtained terminal hydroxy liquid rubber modified epoxy resin possesses the unification of pliability and hardness.
Preferably, WC ceramic particles account for 30-40wt%, further preferred 35wt%.
Preferably, in modified epoxy of the present invention, doped with additives such as firming agent.
The content of the firming agent, as long as solidification can be played, typically somewhat excessive, but will not excessive 20%.
Flow passage components after the repairing, through erosion speed be 10m/s, erosion angle be 70 °, the erosion time be continuous 48 little After Shi Lianxu erosive wears, its volume wear is 20% or so of the flow passage components without coating, while entirely filling up Coating surface complete, without peeling.
Specific embodiment
Technical scheme is further illustrated below by specific embodiment.
Embodiment 1
A kind of flow passage component of slurry pump repair technology, which includes：
(1) sandblasting roughening is carried out to flow passage components surface to be repaired；
(2) by the flow passage components surface acetone after sandblasting roughening and washing with alcohol, dry；
(3) 20wt%, Si are accounted for according to hard WC ceramic particles3N4Nano-particle account for 15wt%, graphene fiber 2wt% and The proportioning of terminal hydroxy liquid rubber modified epoxy resin surplus, makes slurry mix homogeneously；
(4) the flow passage components surface to be repaired by the slurry uniform application after the drying, dries at 90 DEG C, obtains cladding In flow passage components surface WC-Si3N4The terminal hydroxy liquid rubber modified epoxy resin wear resistant corrosion resistant of-graphene fiber doping is applied The multicoat corrosion-resistant coating of layer.
Embodiment 2
A kind of flow passage component of slurry pump repair technology, which includes：
(1) sandblasting roughening is carried out to flow passage components surface to be repaired；
(2) by the flow passage components surface acetone after sandblasting roughening and washing with alcohol, dry；
(3) 65wt%, Si are accounted for according to hard WC ceramic particles3N4Nano-particle account for 5wt%, graphene fiber 10wt% and The proportioning of terminal hydroxy liquid rubber modified epoxy resin surplus, makes slurry mix homogeneously；
(4) the flow passage components surface to be repaired by the slurry uniform application after the drying, dries at 130 DEG C, is melted It is overlying on flow passage components surface WC-Si3N4The terminal hydroxy liquid rubber modified epoxy resin wear resistant corrosion resistant of-graphene fiber doping The multicoat corrosion-resistant coating of coating.
Embodiment 3
A kind of flow passage component of slurry pump repair technology, which includes：
(1) sandblasting roughening is carried out to flow passage components surface to be repaired；
(2) by the flow passage components surface acetone after sandblasting roughening and washing with alcohol, dry；
(3) 35wt%, Si are accounted for according to hard WC ceramic particles3N4Nano-particle account for 10wt%, graphene fiber 7wt% and The proportioning of terminal hydroxy liquid rubber modified epoxy resin surplus, makes slurry mix homogeneously；
(4) the flow passage components surface to be repaired by the slurry uniform application after the drying, dries at 100 DEG C, is melted It is overlying on flow passage components surface WC-Si3N4The terminal hydroxy liquid rubber modified epoxy resin wear resistant corrosion resistant of-graphene fiber doping The multicoat corrosion-resistant coating of coating.
Described in embodiment 1-3 repair after flow passage components, through erosion speed be 10m/s, erosion angle be 70 °, erosion time After for continuous erosive wear in continuous 48 hours, its volume wear is 20% or so of the flow passage components without coating, with When the coating surface entirely filled up complete, without peeling.

Claims (2)

1. a kind of flow passage component of slurry pump skin patching technique, which includes：
(1) sandblasting roughening is carried out to flow passage components surface to be repaired；
(2) by the flow passage components surface acetone after sandblasting roughening and washing with alcohol, dry；
(3) 20-65wt%, Si are accounted for according to hard WC ceramic particles3N4Nano-particle accounts for 5-15wt%, graphene fiber 2- 10wt% and the proportioning of terminal hydroxy liquid rubber modified epoxy resin surplus, make slurry mix homogeneously；
(4) the flow passage components surface to be repaired by the slurry uniform application after the drying, dries at 90-130 DEG C, obtains cladding In flow passage components surface WC-Si3N4The terminal hydroxy liquid rubber modified epoxy resin wear resistant corrosion resistant of-graphene fiber doping is applied The multicoat corrosion-resistant coating of layer.
2. flow passage component of slurry pump skin patching technique as claimed in claim 1, it is characterised in that WC ceramic particles account for 30- 40wt%, further preferred 35wt%.
CN201611011901.6A 2016-11-17 2016-11-17 A kind of flow passage component of slurry pump skin patching technique Pending CN106497336A (en)

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Application Number Priority Date Filing Date Title
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CN201611011901.6A CN106497336A (en) 2016-11-17 2016-11-17 A kind of flow passage component of slurry pump skin patching technique

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CN106497336A true CN106497336A (en) 2017-03-15

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108654961A (en) * 2018-05-16 2018-10-16 安徽三环水泵有限责任公司 A kind of method for repairing and mending of flow passage component of slurry pump
CN116474895A (en) * 2023-04-21 2023-07-25 南京银茂铅锌矿业有限公司 Wear-resistant method for preventing lining neck of ball mill from being worn in feeding and discharging process

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4695598A (en) * 1985-04-03 1987-09-22 Nitto Electric Industrial Co., Ltd. Epoxy resin coating composition
CN1766015A (en) * 1999-02-19 2006-05-03 纳幕尔杜邦公司 wear-resistant coating
CN103993308A (en) * 2014-04-10 2014-08-20 江苏新亚特钢锻造有限公司 Method for re-manufacturing roller shaft part through laser cladding
CN104293107A (en) * 2014-10-28 2015-01-21 芜湖县双宝建材有限公司 Impact-resistant high-adhesive-force inflaming-retarding modified bisphenol A epoxy resin paint

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4695598A (en) * 1985-04-03 1987-09-22 Nitto Electric Industrial Co., Ltd. Epoxy resin coating composition
CN1766015A (en) * 1999-02-19 2006-05-03 纳幕尔杜邦公司 wear-resistant coating
CN103993308A (en) * 2014-04-10 2014-08-20 江苏新亚特钢锻造有限公司 Method for re-manufacturing roller shaft part through laser cladding
CN104293107A (en) * 2014-10-28 2015-01-21 芜湖县双宝建材有限公司 Impact-resistant high-adhesive-force inflaming-retarding modified bisphenol A epoxy resin paint

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
张金升等: "《陶瓷材料显微结构与性能》", 31 May 2007, 化学工业出版社 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108654961A (en) * 2018-05-16 2018-10-16 安徽三环水泵有限责任公司 A kind of method for repairing and mending of flow passage component of slurry pump
CN116474895A (en) * 2023-04-21 2023-07-25 南京银茂铅锌矿业有限公司 Wear-resistant method for preventing lining neck of ball mill from being worn in feeding and discharging process

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Application publication date: 20170315