CN109867488A - Abrasion-proof corrosion-proof corrosion material and preparation method thereof, pump flow passage components and preparation method thereof - Google Patents
Abrasion-proof corrosion-proof corrosion material and preparation method thereof, pump flow passage components and preparation method thereof Download PDFInfo
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Abstract
The invention discloses abrasion-proof corrosion-proof corrosion material and preparation method thereof and the pump flow passage components prepared using the material, inorganic polymer fiber and technical field of composite materials, are calculated by mass percentage including following component: abrasion resistant particles 75%~90%；Organic component 4%~8%；Fiber 2%~4%；Defoaming agent 0.005%~0.02%；Coupling agent 0.1%~0.8%；Fiber is intertwined with resin, chain and interleaving network structure are formed, since interleaving network structure has the entanglement that cannot be unlocked, so that shear strength is high, the high inevitable peel strength of shear strength is high, so that the abrasion-proof corrosion-proof corrosion material has wear-resisting, corrosion-resistant and resistant to high temperature characteristic.
Description
Technical field
The present invention relates to inorganic polymer fiber and technical field of composite materials, and in particular to a kind of abrasion-proof corrosion-proof corrosion material
And preparation method, and using the abrasion-proof corrosion-proof corrosion material prepare pump flow passage components with and preparation method thereof.
Background technique
With the call of reform and the energy-saving and emission-reduction of national supply side.Many industries propose the service life of product
Pulp pump, slush pump, desulfurization pump, process pump of the industrial applications such as higher requirement, especially ore dressing, metallurgy, chemical industry etc., due to
Not only flow velocity is fast for the medium of conveying, contains a large amount of hard solid particle simultaneously, and flow passage components will not only bear solid particle
Abrasion, the electrochemical corrosion that also generated by chemical substance and metal cause such pump flow passage components abrasion big, service life
Short, the pump service life used now is no more than 5 months, causes the number of pumping unit shutdown maintenance to increase, increases the work of worker
Make intensity, the aggravation of abrasion causes the efficiency of pump operation to decline, power consumption increase, replacement acknowledgment copy demand it is big, operating cost compared with
Height, waste and old acknowledgment copy also lead to the waste of resource.
The existing domestic pump majority for wear resistant corrosion resistant is metal pump.Also there are a small amount of ceramic pump and plastic pump.Metal pump
The middle corrosion resistant general hardness of energy is not high, is not able to satisfy wear-resisting requirement；And wear-resistant material is not general corrosion-resistant, while brittleness
It is especially big, not easy to be processed and assembly.Ceramic material has brilliant anticorrosion and wear-resisting property, but since ceramic now is set
Meter and production technology do not reach requirement, and pumping unit manufacturer can hardly accomplish the impeller and the pump housing of full ceramic material；Simultaneously
Since ceramic material is particularly crisp, the ability for bearing interior pressure is poor, and present technology can not produce and design large-scale impeller
And the pump housing, such as the Pulp pump in the mixed-flow pump and ore dressing in desulphurization system.
For the wear resistant corrosion resistant for solving the problems, such as pump flow passage components；Much pump factory was attempting by pump flow passage components in recent years
Surface coat one layer of abrasion-proof corrosion-proof corrosion material.Such as: applying one layer of ceramic lined or coated non-metallic material, or filled out by resin
The surface that some wear-resistant materials are coated in flow passage components is filled, thickness can require to be adjusted according to user；But these present sides
All there is various limitations in formula method, as the compactness of coat does not reach requirement；The bonding force of coat and metal is inadequate, out
The case where now falling；Heat resistanceheat resistant performance of shaking is bad, and cracked, phenomena such as falling off is coated in temperature change；So that pump factory
Family can not fundamentally solve the problems such as anticorrosion and the wear resistence of impeller and the pump housing.
Summary of the invention
The present invention coats one layer of abrasion-proof corrosion-proof corrosion material for the surface described above in existing pump flow passage components or leads to
The mode of resin filling is crossed, but there are the compactness of coat not to reach requirement for both modes；Coat and metal it is viscous
The case where relay is inadequate, falls；Heat resistanceheat resistant performance of shaking is bad, and cracked, phenomena such as falling off is coated in temperature change；Make
Manufacturer, which must be pumped, can not fundamentally solve the problems, such as the anticorrosion and wear resistence of impeller and the pump housing；The present invention provides a kind of resistance to
Grind resistant material；
The technical solution of the present invention is as follows: a kind of abrasion-proof corrosion-proof corrosion material, is calculated by mass percentage including following component: resistance to
Abrasive particle 75%~90%；Organic component 4%~8%；Fiber 2%~4%；Defoaming agent 0.005%~0.02%；Coupling agent
0.1%~0.8%.
The working principle of the invention has the beneficial effect that fiber is intertwined with resin, forms chain and interleaving network knot
Structure, because there is the entanglement that cannot be unlocked in interleaving network structure, so that shear strength is high, the high inevitable antistripping of shear strength
Intensity is high, so that the abrasion-proof corrosion-proof corrosion material has wear-resisting, corrosion-resistant and resistant to high temperature characteristic.
The cost of material of abrasion-proof corrosion-proof corrosion material made of the above component is low, reduces the manufacturing cost of pump flow passage components.
It further limiting, the abrasion resistant particles by particle size are respectively 450~550 μm, 250~350 μm and 100~
150 μm of three kinds of specifications compositions；
Wherein calculate by accounting percentage: 450~550 μm account for 15%~30%, and 250~350 μm account for 35%~55%,
100~150 μm account for 10%~25%.
The working principle of the invention has the beneficial effect that high hardness wear-resisting using three kinds of different-grain diameters, different weight
Grain is combined adapted, and large scale abrasion resistant particles make the abrasion-proof corrosion-proof corrosion material have erosion resistance and abrasion resistance properties, small size
Abrasion resistant particles make between different size abrasion resistant particles can close-packed arrays, increase the compactness of wear resistant corrosion resistant material internal, no
Easily peeled off.
It further limits, the organic component is made of resin and curing agent, in which: the mass ratio of resin and curing agent is
1:0.3.
It further limits, the resin is one of epoxy resin, phenolic resin or polyimide resin.
It further limits, the curing agent is amine curing agent.
It further limits, the fiber is non-metallic fibers.
It further limits, the abrasion resistant particles are in silicon carbide, silicon nitride, aluminum oxide, zirconium oxide or boron nitride
Two or more mixture.
The present invention also provides a kind of preparation methods of abrasion-proof corrosion-proof corrosion material, comprising the following steps:
1) mixing water-tight equipment is vacuumized first and is placed in vacuum environment and mixing water-tight equipment is preheated, it will
Its preheating temperature is to 45~55 DEG C；
2) organic component is added in the mixing water-tight equipment that has been warmed up and is stirred, stirring while carries out vacuumizing place
Reason；After stirring 15~20min, toward addition abrasion resistant particles, fiber, defoaming agent and coupling agent in mixing water-tight equipment, then after
It is continuous to vacuumize, and 60~80min is stirred, heating temperature is 50~60 DEG C, relative degree of vacuum -0.03MPa；
3) cooling obtains abrasion-proof corrosion-proof corrosion material.
The working principle of the invention or have the beneficial effect that is prepared under vacuum conditions, and is added and is disappeared during preparation
Infusion and coupling agent guarantee do not have bubble generation during stirring, so that abrasion-proof corrosion-proof corrosion material compactness is good and without gas
Hole.
The present invention also provides transition zone, mistake are coated on a kind of pump flow passage components, including mono-hull, mono-hull medial surface
It crosses on layer and is bonded with wear resistant corrosion resistant layer；The wear resistant corrosion resistant layer is made of abrasion-proof corrosion-proof corrosion material, and the transition zone is by changing
Property polyurethane or silicon rubber are made；Abrasion-proof corrosion-proof corrosion material is calculated by mass percentage including following component: abrasion resistant particles 75%
~90%；Organic component 4%~8%；Fiber 2%~4%；Defoaming agent 0.005%~0.02%；Coupling agent 0.1%~
0.8%.
The working principle of the invention has the beneficial effect that transition is arranged between mono-hull and wear resistant corrosion resistant layer in the present invention
Layer, transition zone are made of modified polyurethane or silicon rubber, for separating mono-hull and wear resistant corrosion resistant layer, form fine and close guarantor
Sheath effectively prevents acid medium from eroding to mono-hull；The transition zone has good flexibility and resilience simultaneously, effectively
Avoid the generation cracked and fallen off due to caused by the variation of temperature；External heat is effectively decayed simultaneously, makes heat
Amount lowers 60% or more when being transmitted to transition zone；The pump flow passage components use mono-hull, reduce the weight and manufacturing cost of pump.
The present invention also provides a kind of preparation methods for pumping flow passage components, comprising the following steps:
A) preparation of transition zone slurry: under vacuum conditions, the raw material for being used to prepare transition zone addition is had been warmed up
Container in and heating and stirring obtain transition layered material slurry when the temperature in container reaches 40 DEG C~50 DEG C heat preservations；
B) pre-process: by the component of the shell of flow passage components for needing to be poured and the mold of pump flow passage components by sandblasting,
Cleaning and purging process carry out cleaning and so that its temperature is reached 40 DEG C~50 DEG C mono-hull heated baking and keep the temperature；
C) the transition zone slurry in step a) is homogeneously applied to be made in the shell inner surface kept the temperature in step b)
Cross layer, transition zone with a thickness of 0.3~0.5mm；Then the shell after coating is put into 50 DEG C~65 DEG C of sealed environment and is dried
Roasting, baking time is 30~60min；
D) shell that step c) baking obtains is assembled into the mold of pump flow passage components, assembling together with other mold components
Mold is put into after the completion in 45 DEG C~55 DEG C of sealed environment and is toasted；
The mold of the pump flow passage components includes mould for pump body, pump cover mould and impeller mold；
E) slurry of abrasion-proof corrosion-proof corrosion material made from step 2) in claim 8 pressure pouring: is poured into step d)
In the mold of middle preheating, pouring pressure is 10MP~20MPa, obtains the first pouring piece；
F) the first pouring piece is subjected to one-step solidification, obtains the second pouring piece；
G) mold for removing the second pouring piece, obtains flow passage components blank, by the further air dry cure of flow passage components blank,
Obtain pump flow passage components.
The working principle of the invention has the beneficial effect that wear resistant corrosion resistant slurry injection mold using pressure pouring, should
The mobility of wear resistant corrosion resistant slurry is preferable, it is ensured that fills up entire mold, while being further ensured that the compactness of pump flow passage components；
The molding time of pump flow passage components can be shortened by being heating and curing to pump flow passage components, improve production efficiency；Pouring technology letter
It is single and economical, to pump flow passage components with wear-corrosion resistance using wear resistant corrosion resistant layer and transition zone and is not easy to be shelled
It falls, while increasing the service life of pump, considerably increase the maintenance cycle of pump, require height in Pulp pump, desulfurization pump etc.
Application in the mineral products metallurgy industry equipment of warm high abrasion high corrosion has very significant economic benefit.
Present invention antiwear and anticorrosive material is saved by the former alloy material monoblock cast mode of the integrated poured substitution of mold
A large amount of alloy material resource, while the pouring type will not generate flue dust, no Metal Melting process has largely saved electric power
Resource has accomplished real green casting.
Detailed description of the invention
Fig. 1 is the casting schematic diagram of the pump cover mould in embodiment 1 in the flow passage components of Pulp pump；
Wherein: 1- loose tool；2- mono-hull；3- core model；4- transition zone；5- wear resistant corrosion resistant layer；6- is poured channel.
Specific embodiment
Description of specific embodiments of the present invention with reference to the accompanying drawing.Embodiments of the present invention include but unlimited
In the following example.
Since much pump factory is attempting to coat one layer of abrasion-proof corrosion-proof corrosion material by the surface to pump flow passage components in recent years.
Such as: applying one layer of ceramic lined or coated non-metallic material, or some wear-resistant materials are filled coated in flow passage components by resin
Surface, thickness can according to user require be adjusted；But all there is various limitations in these present methods, such as coat
The compactness of layer does not reach requirement；The case where bonding force of coat and metal is inadequate, falls；Heat resistanceheat resistant vibration performance is bad,
Cracked, phenomena such as falling off is coated in temperature change；So that pump manufacturer can not fundamentally solve impeller and the pump housing
Anticorrosion and the problems such as wear resistence；
The present invention provides a kind of abrasion-proof corrosion-proof corrosion material, is calculated by mass percentage including following component: abrasion resistant particles
75%~90%；Organic component 4%~8%；Fiber 2%~4%；Defoaming agent 0.005%~0.02%；Coupling agent 0.1%~
0.8%.
Wherein: abrasion resistant particles are mixed using the of different sizes of three kinds or more；Abrasion resistant particles are carbonization
Two or more mixture in silicon, silicon nitride, aluminum oxide, zirconium oxide or boron nitride；
Preferably, abrasion resistant particles are mixed using three kinds of size specifications, three kinds of size specifications are respectively 450~550 μm,
250~350 μm and 100~150 μm, the accounting of three kinds of size specifications is respectively as follows: 15%~30%, 35%~55%, 10%
~25%.
The organic component is made of resin and curing agent, in which: the mass ratio of resin and curing agent is 1:0.3, described
Resin is by one of epoxy resin, phenolic resin or polyimide resin；The curing agent is amine curing agent；The fiber
For carbon fiber, glass fibre or other non-metallic fibers.
The present invention also provides a kind of preparation methods of abrasion-proof corrosion-proof corrosion material, comprising the following steps:
1) mixing water-tight equipment is vacuumized first and is placed in vacuum environment and mixing water-tight equipment is preheated, it will
Its preheating temperature is to 45~55 DEG C；
2) organic component is added in the mixing water-tight equipment that has been warmed up and is stirred, stirring while carries out vacuumizing place
Reason；After stirring 15~20min, toward addition abrasion resistant particles, fiber, defoaming agent and coupling agent in mixing water-tight equipment, then after
It is continuous to vacuumize, and 60~80min is stirred, heating temperature is 50~60 DEG C, relative degree of vacuum -0.03MPa；
3) cooling obtains abrasion-proof corrosion-proof corrosion material.
Wherein: vacuumizing to water-tight equipment is gas in device for transferring, and latter products is avoided to form shrinkage cavity；
The present invention also provides transition zone, transition are coated on a kind of pump flow passage components, including mono-hull, mono-hull medial surface
Wear resistant corrosion resistant layer is bonded on layer；The wear resistant corrosion resistant layer is calculated by mass percentage including following component: abrasion resistant particles
75%~90%；Organic component 4%~8%；Fiber 2%~4%；Defoaming agent 0.005%~0.02%；Coupling agent 0.1%~
0.8%, the transition zone is made of modified polyurethane or silicon rubber.
Wherein: the weight ratio original structure of mono-hull pump is light by 40~45%, and mono-hull prepares material using conventional HT250
Or ZG35 replaces former high-chromium alloy, high-chromium-nickel alloy or other anticorrosive anti-wear alloy materials；The finished product for improving flow passage components is received
Yield；Avoid Gao Ge, (such defect cannot be by for casting flaw that nickelic abrasion-proof corrosion-proof alloy material generates in casting process
Repair), manufacturing cost reduces by 30%.
The present invention also provides a kind of preparation methods for pumping flow passage components, comprising the following steps:
A) preparation of transition zone slurry: under vacuum conditions, the raw material for being used to prepare transition zone addition is had been warmed up
Container in and heating and stirring obtain transition layered material slurry when the temperature in container reaches 40 DEG C~50 DEG C heat preservations；
B) pre-process: by the component of the shell of flow passage components for needing to be poured and the mold of pump flow passage components by sandblasting,
Cleaning and purging process carry out cleaning and so that its temperature is reached 40 DEG C~50 DEG C mono-hull heated baking and keep the temperature；
C) the transition zone slurry in step a) is homogeneously applied to be made in the shell inner surface kept the temperature in step b)
Cross layer, transition zone with a thickness of 0.3~0.5mm；Then the shell after coating is put into 50 DEG C~65 DEG C of sealed environment and is dried
Roasting, baking time is 30~60min；
D) shell that step c) baking obtains is assembled into the mold of pump flow passage components, assembling together with other mold components
Mold is put into after the completion in 45 DEG C~55 DEG C of sealed environment and is toasted；
The mold of the pump flow passage components includes mould for pump body, pump cover mould and impeller mold；
E) slurry of abrasion-proof corrosion-proof corrosion material made from step 2) in claim 8 pressure pouring: is poured into step d)
In the mold of middle preheating, pouring pressure is 10MP~20MPa, obtains the first pouring piece；
F) the first pouring piece is subjected to one-step solidification, obtains the second pouring piece；
G) mold for removing the second pouring piece, obtains flow passage components blank, by the further air dry cure of flow passage components blank,
Obtain pump flow passage components.
It is heating and curing and room temperature curing replacement can be used.The casting belts mold of vibration moulding is dried at room temperature,
Drying time is 25~40h, demoulds the blank after dry, solidifies 40~60h at room temperature；Wherein room in room temperature curing
Temperature is 20~28 DEG C.
Solidification temperature and curing time in solidification process described above is according to the size and mold for pumping flow passage components
Material prescription difference is different.
Below by taking Pulp pump common in mining process as an example.
Control group
Using existing Pulp pump, the measure for the wear resistant corrosion resistant that existing Pulp pump uses are as follows: in the flow passage of Pulp pump
One layer of ceramic lined or coated non-metallic material are applied on the surface of part, or some wear-resistant materials are filled by resin and were coated in
Pulp pump is carried out the heat vibration property test of alternately variation under 150 DEG C and room temperature respectively, alternately changed by the surface of stream unit
The shear strength and tensile strength of flow passage component of slurry pump are measured after 300 times；Pulp pump overcurrent is measured after alternately variation 500 times
The shear strength and tensile strength of component.
Embodiment 1
1) prepare raw material: configuring abrasion-proof corrosion-proof corrosion material, abrasion resistant particles: 75% according to mass percent below；Have
Machine ingredient 4%；Fiber 2%；Defoaming agent 0.005%；Coupling agent 0.1%；Wherein: abrasion resistant particles are silicon carbide and aluminum oxide
Mixture, the partial size of particle is mainly distributed as 450~550 μm, 250~350 μm and 100~150 μm；Partial size be 450~
550 μm of accounting is 15%；Partial size is that 50~350 μm of accounting is 35%；Partial size is that 100~150 μm of accounting is 10%；
Organic principle chooses epoxy resin, and curing agent is amine curing agent, the mass ratio of epoxy resin and amine curing agent
For 1:0.3；
Fiber is carbon fiber；The material of transition zone uses modified polyurethane, and the list of Pulp pump is prepared using HT250 or ZG35
Shell；
2) preparation of transition zone slurry: under vacuum conditions, container being preheated, preheating temperature to 40 DEG C~50 DEG C,
The modified polyurethane for being used to prepare transition zone is added in the container that has been warmed up and heating and stirring, when the temperature in container reaches
It is kept the temperature to 40 DEG C~50 DEG C, obtains modified polyurethane slurry；
3) pre-process: by the mono-hull 2 of Pulp pump, the component tool of mould for pump body, pump cover mould and impeller mold passes through
Sandblasting, cleaning and purging process carry out cleaning and so that its temperature is reached 40 DEG C~50 DEG C mono-hull heated baking and keep the temperature；
4) it coats transition zone: the modified polyurethane slurry in step 2) is homogeneously applied to the monoshell kept the temperature in step 3)
On 2 inner surface of body be made transition zone 4, transition zone 4 with a thickness of 0.3mm；Then the mono-hull 2 after coating is put into 50 DEG C~65
DEG C sealed environment in toast, baking time 45min；
5) mono-hull 2 that step 4) baking obtains is assembled into the mold of pump flow passage components together with other mold components,
Pumping the mold of flow passage components herein includes mould for pump body, pump cover mould and impeller mould；By mould for pump body, pump cover after being completed
Mold and impeller mold are put into 45 DEG C~55 DEG C of sealed environment and toast, wherein pump cover mould as shown in Figure 1, mono-hull 2,
Loose tool 1 and core model 3 are assembled into pump cover mould；
6) mixing water-tight equipment is vacuumized first and is placed in vacuum environment and mixing water-tight equipment is preheated, it will
Its preheating temperature is to 45~55 DEG C；
Epoxy resin and amine curing agent are added in the mixing water-tight equipment having been warmed up and are stirred, while stirring into
Row vacuumize process；After stirring 15min, toward preparation silicon carbide and aluminum oxide in step 1) is added in mixing water-tight equipment
Mixture, carbon fiber, defoaming agent and coupling agent then proceed to vacuumize, and stir 60min, and heating temperature is 50 DEG C, phase
It is -0.03MPa to vacuum degree, obtains abrasion-proof corrosion-proof corrosion material slurry；
7) the abrasion-proof corrosion-proof corrosion material slurry in step 6) is cast in mould for pump body, pump cover mould and impeller mold,
Pouring pressure is 15MPa,
As shown in Figure 1 it is the casting schematic diagram of pump cover mould, abrasion-proof corrosion-proof corrosion material slurry is poured by being poured channel 6
In the cavity being enclosed into loose tool 1, mono-hull 2 and core model 3, and pouring pressure is 15MPa, abrasion-proof corrosion-proof corrosion material material
Wear resistant corrosion resistant layer 5 is formed after slurry drying；The first pouring piece of the pump housing, the first pouring piece of pump cover and impeller first is obtained to be poured
Part；
8) the first pouring piece of the pump housing, the first pouring piece of pump cover and the first pouring piece of impeller are subjected to one-step solidification, the pump housing
The solidification temperature of mold, pump cover mould and impeller mold is 70~75 DEG C, and curing time is respectively 300min, 200min with
And 150min, obtain the second pouring piece of the second pouring piece of the pump housing, the second pouring piece of pump cover and impeller；
9) by the second pouring piece of the pump housing, the second pouring piece of pump cover and the second pouring piece of impeller demould, obtain pump housing blank,
Pump cover blank and impeller blank；
Then pump housing blank, pump cover blank and impeller blank are put into and carry out heating comprehensive solidification, heating temperature in electric furnace
It is 100~180 DEG C, the time is respectively 5h, 4h and 3h；It obtains the pump housing, pump cover and impeller and is assembled into Pulp pump.
The heat vibration property test that Pulp pump is carried out under 150 DEG C and room temperature to alternately variation respectively, after alternately variation 300 times
Measure the shear strength and tensile strength of flow passage component of slurry pump；Flow passage component of slurry pump is measured after alternately variation 500 times
Shear strength and tensile strength；As shown in table 1.
Embodiment 2
1) prepare raw material: configuring abrasion-proof corrosion-proof corrosion material, abrasion resistant particles 82% according to mass percent below；It is organic
Ingredient 6%；Fiber 3%；Defoaming agent 0.01%；Coupling agent 0.5%；Wherein: abrasion resistant particles are silicon nitride, zirconium oxide and nitridation
The mixture of boron, the partial size of particle are mainly distributed as 450~550 μm, 250~350 μm and 100~150 μm；Partial size is 450
~550 μm of accounting is 25%；Partial size is that 50~350 μm of accounting is 43%；Partial size is that 100~150 μm of accounting is 17%；
Organic principle chooses polyimide resin, and curing agent is amine curing agent, polyimide resin and amine curing agent
Mass ratio be 1:0.3；
Fiber is glass fibre；The material of transition zone uses silicon rubber, and the monoshell of Pulp pump is prepared using HT250 or ZG35
Body；
2) preparation of transition zone slurry: under vacuum conditions, container being preheated, preheating temperature to 40 DEG C~50 DEG C,
The silicon rubber for being used to prepare transition zone is added in the container that has been warmed up and heating and stirring, when the temperature in container reaches 40
DEG C~50 DEG C of heat preservations, obtain silicon rubber slurry；
3) pre-process: by the mono-hull of Pulp pump, the component tool of mould for pump body, pump cover mould and impeller mold passes through spray
Sand, cleaning and purging process carry out cleaning and so that its temperature is reached 40 DEG C~50 DEG C mono-hull heated baking and keep the temperature；
4) it coats transition zone: the silicon rubber slurry in step 2) is homogeneously applied in the mono-hull kept the temperature in step 3)
On surface be made transition zone, silicon rubber with a thickness of 0.4mm；Then mono-hull after coating is put into 50 DEG C~65 DEG C of sealing
It is toasted in environment, baking time 45min；
5) mono-hull that step 4) baking obtains is assembled into the mold of pump flow passage components together with other mold components, this
The mold of place's pump flow passage components includes mould for pump body, pump cover mould and impeller mould；By mould for pump body, pump cover mould after being completed
Tool and impeller mold are put into 45 DEG C~55 DEG C of sealed environment and toast；
6) mixing water-tight equipment is vacuumized first and is placed in vacuum environment and mixing water-tight equipment is preheated, it will
Its preheating temperature is to 45~55 DEG C；
Epoxy resin and amine curing agent are added in the mixing water-tight equipment having been warmed up and are stirred, while stirring into
Row vacuumize process；After stirring 15min, it is added in step 1) into mixing water-tight equipment and prepares silicon nitride, zirconium oxide and nitrogen
Mixture, carbon fiber, defoaming agent and the coupling agent for changing boron, then proceed to vacuumize, and stir 70min, heating temperature is
55 DEG C, relative degree of vacuum is -0.03MPa, obtains abrasion-proof corrosion-proof corrosion material slurry；
7) the abrasion-proof corrosion-proof corrosion material slurry in step 6) is cast in mould for pump body, pump cover mould and impeller mold,
Pouring pressure is 10MP~20MPa, obtains the first pouring piece of the first pouring piece of the pump housing, the first pouring piece of pump cover and impeller；
8) the first pouring piece of the pump housing, the first pouring piece of pump cover and the first pouring piece of impeller are subjected to one-step solidification, the pump housing
The solidification temperature of mold, pump cover mould and impeller mold is 70~75 DEG C, and curing time is respectively 300min, 200min with
And 150min, obtain the second pouring piece of the second pouring piece of the pump housing, the second pouring piece of pump cover and impeller；
9) by the second pouring piece of the pump housing, the second pouring piece of pump cover and the second pouring piece of impeller demould, obtain pump housing blank,
Pump cover blank and impeller blank；
Then pump housing blank, pump cover blank and impeller blank are put into and carry out heating comprehensive solidification, heating temperature in electric furnace
It is 100~180 DEG C, the time is respectively 5h, 4h and 3h；It obtains the pump housing, pump cover and impeller and is assembled into Pulp pump.
The heat vibration property test that Pulp pump is carried out under 150 DEG C and room temperature to alternately variation respectively, after alternately variation 300 times
Measure the shear strength and tensile strength of flow passage component of slurry pump；Flow passage component of slurry pump is measured after alternately variation 500 times
Shear strength and tensile strength, as shown in table 1.
Embodiment 3
1) prepare raw material: configuring abrasion-proof corrosion-proof corrosion material, abrasion resistant particles 90% according to mass percent below；It is organic
Ingredient 8%；Fiber 4%；Defoaming agent 0.02%；Coupling agent 0.8%；Wherein: abrasion resistant particles are silicon nitride, zirconium oxide and nitridation
The mixture of boron, the partial size of particle are mainly distributed as 450~550 μm, 250~350 μm and 100~150 μm；Partial size is 450
~550 μm of accounting is 30%；Partial size is that 50~350 μm of accounting is 55%；Partial size is that 100~150 μm of accounting is 25%；
Organic principle chooses phenolic resin, and curing agent is amine curing agent, the mass ratio of phenolic resin and amine curing agent
For 1:0.3；
Fiber is glass fibre；The material of transition zone uses silicon rubber, and the monoshell of Pulp pump is prepared using HT250 or ZG35
Body；
2) preparation of transition zone slurry: under vacuum conditions, container being preheated, preheating temperature to 40 DEG C~50 DEG C,
The silicon rubber for being used to prepare transition zone is added in the container that has been warmed up and heating and stirring, when the temperature in container reaches 40
DEG C~50 DEG C of heat preservations, obtain silicon rubber slurry；
3) pre-process: by the mono-hull of Pulp pump, the component tool of mould for pump body, pump cover mould and impeller mold passes through spray
Sand, cleaning and purging process carry out cleaning and so that its temperature is reached 40 DEG C~50 DEG C mono-hull heated baking and keep the temperature；
4) it coats transition zone: the silicon rubber slurry in step 2) is homogeneously applied in the mono-hull kept the temperature in step 3)
On surface be made transition zone, silicon rubber with a thickness of 0.5mm；Then mono-hull after coating is put into 50 DEG C~65 DEG C of sealing
It is toasted in environment, baking time 50min；
5) mono-hull that step 4) baking obtains is assembled into the mold of pump flow passage components together with other mold components, this
The mold of place's pump flow passage components includes mould for pump body, pump cover mould and impeller mould；By mould for pump body, pump cover mould after being completed
Tool and impeller mold are put into 45 DEG C~55 DEG C of sealed environment and toast；
6) mixing water-tight equipment is vacuumized first and is placed in vacuum environment and mixing water-tight equipment is preheated, it will
Its preheating temperature is to 45~55 DEG C；
Phenolic resin and amine curing agent are added in the mixing water-tight equipment having been warmed up and are stirred, while stirring into
Row vacuumize process；After stirring 15min, it is added in step 1) into mixing water-tight equipment and prepares silicon nitride, zirconium oxide and nitrogen
Mixture, carbon fiber, defoaming agent and the coupling agent for changing boron, then proceed to vacuumize, and stir 80min, heating temperature is
55 DEG C, relative degree of vacuum is -0.03MPa, obtains abrasion-proof corrosion-proof corrosion material slurry；
7) the abrasion-proof corrosion-proof corrosion material slurry in step 6) is cast in mould for pump body, pump cover mould and impeller mold,
Pouring pressure is 10MP~20MPa, obtains the first pouring piece of the first pouring piece of the pump housing, the first pouring piece of pump cover and impeller；
8) the first pouring piece of the pump housing, the first pouring piece of pump cover and the first pouring piece of impeller are subjected to one-step solidification, the pump housing
The solidification temperature of mold, pump cover mould and impeller mold is 70~75 DEG C, and curing time is respectively 300min, 200min with
And 150min, obtain the second pouring piece of the second pouring piece of the pump housing, the second pouring piece of pump cover and impeller；
9) by the second pouring piece of the pump housing, the second pouring piece of pump cover and the second pouring piece of impeller demould, obtain pump housing blank,
Pump cover blank and impeller blank；
Then pump housing blank, pump cover blank and impeller blank are put into and carry out heating comprehensive solidification, heating temperature in electric furnace
It is 100~180 DEG C, the time is respectively 5h, 4h and 3h；It obtains the pump housing, pump cover and impeller and is assembled into Pulp pump.
The heat vibration property test that Pulp pump is carried out under 150 DEG C and room temperature to alternately variation respectively, after alternately variation 300 times
Measure the shear strength and tensile strength of flow passage component of slurry pump；Flow passage component of slurry pump is measured after alternately variation 500 times
Shear strength and tensile strength, as shown in table 1.
Table 1
As shown in Table 1, control group is compared with embodiment 1, embodiment 2 and embodiment 3, and the Pulp pump of control group is either
Its tensile property and shear strength are below embodiment 1, embodiment 2 and embodiment 3 after heat vibration or heat are not shaken 300 times；
After heat vibration 500 times, control group is cracked and flakes phenomenon, and embodiment 1, embodiment 2 and embodiment 3 are not
Cracked and flake phenomenon and shear strength and tensile strength are significantly larger than intensity of the control group in heat vibration；
By embodiment 1 or embodiment 2 or embodiment 3 it is found that with hot shake frequency number increase, shear strength and tensile strength
Decay very weak, illustrates that the Pulp pump has high abrasion, highly corrosion resistant and performance resistant to high temperature.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (10)
1. a kind of abrasion-proof corrosion-proof corrosion material, which is characterized in that be calculated by mass percentage including following component: abrasion resistant particles 75%
~90%；Organic component 4%~8%；Fiber 2%~4%；Defoaming agent 0.005%~0.02%；Coupling agent 0.1%~
0.8%.
2. abrasion-proof corrosion-proof corrosion material according to claim 1, which is characterized in that the abrasion resistant particles are distinguished by particle size
It is formed for 450~550 μm, 250~350 μm and 100~150 μm three kinds of specifications；
Wherein calculate by accounting percentage: 450~550 μm account for 15%~30%, and 250~350 μm account for 35%~55%, 100~
150 μm account for 10%~25%.
3. abrasion-proof corrosion-proof corrosion material according to claim 1, which is characterized in that the organic component is by resin and curing agent
Composition, in which: the mass ratio of resin and curing agent is 1:0.3.
4. abrasion-proof corrosion-proof corrosion material according to claim 3, which is characterized in that the resin is epoxy resin, phenolic aldehyde tree
One of rouge or polyimide resin.
5. abrasion-proof corrosion-proof corrosion material according to claim 3, which is characterized in that the curing agent is amine curing agent.
6. abrasion-proof corrosion-proof corrosion material according to claim 1-3, which is characterized in that the fiber is nonmetallic fibre
Dimension.
7. abrasion-proof corrosion-proof corrosion material according to claim 1 or 2, which is characterized in that the abrasion resistant particles are silicon carbide, nitrogen
Two or more mixture in SiClx, aluminum oxide, zirconium oxide or boron nitride.
8. such as the preparation method of the described in any item abrasion-proof corrosion-proof corrosion materials of claim 1-7, which is characterized in that including following step
It is rapid:
1) mixing water-tight equipment is vacuumized first and is placed in vacuum environment and mixing water-tight equipment is preheated, by its temperature
Degree is preheated to 45~55 DEG C；
2) organic component is added in the mixing water-tight equipment that has been warmed up and is stirred, stirring while carries out vacuumize process；
After stirring 15~20min, abrasion resistant particles, fiber, defoaming agent and coupling agent is added into mixing water-tight equipment, then proceedes to take out
Vacuum, and 60~80min is stirred, heating temperature is 50~60 DEG C, relative degree of vacuum -0.03MPa；
3) cooling obtains abrasion-proof corrosion-proof corrosion material.
9. a kind of pump flow passage components, which is characterized in that including being coated with transition zone, transition zone on mono-hull, mono-hull medial surface
On be bonded with wear resistant corrosion resistant layer；The wear resistant corrosion resistant layer is by the described in any item abrasion-proof corrosion-proof corrosion materials of claim 1-7
It is made, the transition zone is made of modified polyurethane or silicon rubber.
10. a kind of preparation method for pumping flow passage components, which comprises the following steps:
A) preparation of transition zone slurry: under vacuum conditions, the raw material for being used to prepare transition zone are added to the appearance having been warmed up
In device and heating and stirring, when the temperature in container reaches 40 DEG C~50 DEG C heat preservations, transition layered material slurry is obtained；
B) it pre-processes: the component of the shell for the flow passage components for needing to be poured and the mold of pump flow passage components is passed through into sandblasting, cleaning
And purging process carries out cleaning and so that its temperature is reached 40 DEG C~50 DEG C mono-hull heated baking and keep the temperature；
C) the transition zone slurry in step a) is homogeneously applied to that transition zone is made in the shell inner surface kept the temperature in step b),
Transition zone with a thickness of 0.3~0.5mm；Then the shell after coating is put into 50 DEG C~65 DEG C of sealed environment and is toasted, dried
The roasting time is 30~60min；
D) shell that step c) baking obtains is assembled into together with other mold components to the mold of pump flow passage components, be completed
Mold is put into afterwards in 45 DEG C~55 DEG C of sealed environment and is toasted；
The mold of the pump flow passage components includes mould for pump body, pump cover mould and impeller mold；
E) pressure pouring: the slurry of abrasion-proof corrosion-proof corrosion material made from step 2) in claim 8 is poured into step d) in advance
In the mold of heat, pouring pressure is 10MP~20MPa, obtains the first pouring piece；
F) the first pouring piece is subjected to one-step solidification, obtains the second pouring piece；
G) mold for removing the second pouring piece, obtains flow passage components blank, the further air dry cure of flow passage components blank obtains
Pump flow passage components.
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| CN113062126A (en) * | 2021-04-01 | 2021-07-02 | 昆山阿基里斯新材料科技有限公司 | Artificial leather with low impedance on surface and preparation method thereof |
| CN113145426A (en) * | 2020-10-28 | 2021-07-23 | 中科泽元(北京)科技有限公司 | Application of novel anticorrosive wear-resistant material |
| CN116922546A (en) * | 2023-09-18 | 2023-10-24 | 成都永益泵业股份有限公司 | Method for manufacturing molded part by using zirconia and pump flow passage component |
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| CN116922546A (en) * | 2023-09-18 | 2023-10-24 | 成都永益泵业股份有限公司 | Method for manufacturing molded part by using zirconia and pump flow passage component |
| CN116922546B (en) * | 2023-09-18 | 2023-12-29 | 成都永益泵业股份有限公司 | Method for manufacturing molded part by using zirconia and pump flow passage component |
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