CN105039778B - A kind of powder metallurgy brass base etachable material and preparation method for having Wax proofing function - Google Patents
A kind of powder metallurgy brass base etachable material and preparation method for having Wax proofing function Download PDFInfo
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- CN105039778B CN105039778B CN201510406025.6A CN201510406025A CN105039778B CN 105039778 B CN105039778 B CN 105039778B CN 201510406025 A CN201510406025 A CN 201510406025A CN 105039778 B CN105039778 B CN 105039778B
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Abstract
The invention discloses a kind of powder metallurgy brass base etachable material and preparation method for having Wax proofing function.It is characterized in that：It is above-mentioned to there is the powder metallurgy brass base etachable material of Wax proofing function and preparation method to include：Step 1, brass substrate material is prepared using powder metallurgic method；Step 2, processing is performed etching to the brass substrate material using liquor ferri trichloridi.The brass base etching surface is consolidated by forming stable " moisture film ", contact of the barrier oil with surface in three systems in water oil, and then the paraffin in oil is hardly adhered to the surface of solids.Its Wax proofing excellent performance, support is provided to develop labyrinth powder metallurgy Wax proofing device.
Description
Technical field
The present invention relates to a kind of Metallic Functional Materials, espespecially a kind of brass base etachable material with Wax proofing function and its
Preparation method.
Background technology
Wax deposition phenomenon during carried of crude oil brings massive losses to petroleum industry.The Paraffin Removal measure used at present
Mainly have：Mechanical paraffin removal, heating power wax removal, wax-proofing agent Paraffin Removal, magnetic paraffin control, biological wax control and alloy component wax control etc..But
The problem of various is still had in these methods, as cost height, enforcement difficulty are big, it is necessary to periodically stopping production processing etc..And adopt
It is high that complicated Wax proofing part production cycle length, cost are prepared with conventional method.
The content of the invention
In order to overcome the above-mentioned deficiencies of the prior art, the invention provides a kind of powder metallurgy with Wax proofing function is yellow
Copper-based etachable material and preparation method thereof.First pass through powder metallurgic method and prepare brass substrate material, can reduce material manufacture cost, when
Between the cycle, and by PM technique can develop and produce general smelting, the structure and property that process technology can not obtain
The material of energy.Then, processing is performed etching to the powder metallurgy brass of preparation, the material surface is obtained hydrophilic component and microcosmic
Coarse structure, Gu so as to be stably formed one layer " moisture film " in water-oil-three-phase system, it is effectively oily in liquid barrier
The mutually contact with surface, and then obtain good Wax proofing performance, the anti-Lasaxing Oilfield available for content of wax liquid.
The invention provides a kind of powder metallurgy brass base etachable material with Wax proofing function and preparation method thereof, bag
Include：Step 1, brass substrate material is prepared using powder metallurgic method；Step 2, using liquor ferri trichloridi to above-mentioned brass substrate material
Perform etching processing.
Further, in above-mentioned steps 1, remember by weight percentage, the chemical composition of brass substrate material is 72wt%≤Cu
≤ 80wt%, 16wt%≤Zn≤20wt%, 0wt%≤Ni≤10wt%；
Above-mentioned powder metallurgic method concretely comprises the following steps, and (1) ball milling mixes powder：Copper zinc prealloy powder, nickel powder and lubricant is hard
Resin acid zinc is refined and mixed by ball milling, obtains material powder；(2) pressed compact is suppressed：Above-mentioned raw materials powder is suppressed by mould
Shaping, pressing pressure is 320~960MPa, obtains pressed compact；(3) sinter：Above-mentioned pressed compact is subjected to packing sintering, packing sintering
Sintering temperature is 840~880 DEG C, and filler is ZnO and graphite powder, and sintering atmosphere obtains brass substrate material to decompose ammonia after sintering.
Further, above-mentioned etching processing concretely comprises the following steps：(1) liquor ferri trichloridi is prepared, above-mentioned ferric trichloride is molten
The mass concentration of liquid is 15%~25%；(2) processing is performed etching to brass substrate material using above-mentioned liquor ferri trichloridi, etched
The time of processing is 10~120min.
Its principle is, the brass substrate material can form hydrophilic component and micro-rough structure by surface etch on surface,
Surface is set to obtain super hydrophilicity.Because water is made up of polarity inorganic molecules, viscosity is smaller, easily absorption and wetting parent
The high surface energy surface of water.And what oil phase was made up of the organic macromolecule based on non-polar alkane, because viscosity is higher, because
And the speed ratio water for adsorbing and soaking surface is slow.So as to which Gu surface is stably formed one layer of " water in water-oil-three-phase system
Film ", effectively contact of the oil phase with surface in liquid barrier, and then good Wax proofing performance is obtained, available for content of wax liquid
Anti- Lasaxing Oilfield.
Compared with prior art, the brass primary surface that prepared by present invention Wax proofing effect in aqueous wax liquor is good, and uses powder
Last metallurgical method prepares matrix material, can be extended in the preparation of other Wax proofing complex parts
Brief description of the drawings
Fig. 1 is the preparation technology flow of the powder metallurgy brass base etachable material in the present invention with Wax proofing function；
Fig. 2 is the Wax proofing test result of the powder metallurgy brass base etachable material in the present invention with Wax proofing function.
Embodiment
The present invention is discussed in detail with reference to specific embodiment.But following embodiment is only limitted to explain the present invention, this hair
Bright protection domain should include the full content of claim, be not limited only to the present embodiment.And the present invention passes through following reality
Example is applied, those skilled in the art are all the elements that can fully achieve the claims in the present invention record.
Embodiment 1
A kind of powder metallurgy brass base etachable material with Wax proofing function and preparation method thereof, comprises the following steps：
First step, prepare powder metallurgy brass：
(1) ball milling mixes powder：By the pre-alloyed powder and 0.6wt% stearic acid that alloying component is Cu80wt%, Zn20wt%
Zinc mixes, and mixes powder using QM-3A high energy oscillating and vibrating ball mills ball milling, makes material powder homogenization of composition and micronized particles.
(2) pressed compact is suppressed：Using the manual isostatic pressing machine pressed compacts of SJY50-150T, pressing pressure 800MPa.
(3) sinter：Sintering route is that first 10 DEG C/min speed is warming up to 640 DEG C, is incubated 40min, then slows down heating
Speed is 5 DEG C/min, rises to 880 DEG C of sintering temperature, sintering time 60min.Sintering atmosphere is decomposition ammonia.During sintering, to reduce
The loss of zinc, prevent direct impact of the pressed compact by the flame curtain and furnace atmosphere gas of stove.Sample is mixed using 1.5%ZnO
Graphite powder wraps up packing, and iron plate on crucible cover is sealed.
Powder metallurgy brass is obtained by above step.
Second step, etching technics：
(1) powder metallurgy brass sample is polished by 500 mesh and 1000 mesh abrasive paper for metallograph, successively in acetone soln, nothing
In water-ethanol, deionized water 2min is respectively washed with supersonic wave cleaning machine.
(2) liquor ferri trichloridi that 37.5g mass concentrations are 20% is prepared, and adds the hydrochloric acid that 100 μ l concentration are 37%,
Stir.
(3) immersion etching processing, the time of etching processing are carried out to powder metallurgy brass using above-mentioned liquor ferri trichloridi
For 120min.
Surface prepared by the embodiment is ultra-hydrophilic surface, and superoleophobic in aqueous phase.Wax proofing survey is carried out to the surface
Examination, unit area wax deposition amount is 0.03mg/cm2, Wax proofing function is notable.Surface is almost without the viscous of paraffin as shown in Figure 2
It is attached.
Embodiment 2
Alloying component described in the embodiment is 72wt%Cu, 18wt%Zn, 10wt%Ni.Remaining preparation technology is with implementing
Example 1 is identical.Wax proofing test is carried out to the surface, unit area wax deposition amount is 3.18mg/cm2。
Embodiment 3
The pressing pressure that powder metallurgy brass is prepared in the embodiment is 320MPa, and sintering temperature is 840 DEG C, is not carved
Erosion is handled.Wax proofing test is carried out to the surface, unit area wax deposition amount is 8.31mg/cm2。
Embodiment 4
Preparing for the embodiment powder metallurgy brass is same as Example 1.In etching technics, the matter of ferric trichloride etching liquid
Amount concentration is 25%, etch period 10min, carries out Wax proofing test to the surface, unit area wax deposition amount is 0.41mg/cm2。
Wax proofing function is good.
Embodiment 5
Preparing for the embodiment powder metallurgy brass is same as Example 1.In etching technics, the matter of ferric trichloride etching liquid
Amount concentration is 15%, etch period 120min, carries out Wax proofing test to the surface, unit area wax deposition amount is 0.13mg/
cm2.Wax proofing function is good.
Claims (2)
- A kind of 1. preparation method for the powder metallurgy brass base etachable material for having a Wax proofing function, it is characterised in that including：Step 1：Brass substrate material is prepared using powder metallurgic method；Step 2：Processing is performed etching to the brass substrate material using liquor ferri trichloridi；The chemical composition of the powder metallurgy brass base etachable material be 72wt%≤Cu≤80wt%, 16wt%≤Zn≤ 20wt%, 0wt%≤Ni≤10wt%；The powder metallurgic method comprises the following steps that：(1) ball milling mixes powder：Copper zinc prealloy powder, nickel powder are refined and mixed by ball milling with lubricant stearic acid zinc, obtains original Feed powder end；(2) pressed compact is suppressed：The material powder is compressing by mould, and pressing pressure is 320~960MPa, is pressed Base；(3) sinter：The pressed compact is subjected to packing sintering, the sintering temperature of the packing sintering is 840~880 DEG C, and filler is ZnO and graphite powder, sintering atmosphere obtain brass substrate material to decompose ammonia after sintering.
- 2. the preparation method of powder metallurgy brass base etachable material according to claim 1, it is characterised in that the etching Processing comprises the following steps that：(1) liquor ferri trichloridi is prepared, the mass concentration of the liquor ferri trichloridi is 15%~25%；(2) processing, the etching processing are performed etching to the powder metallurgy brass substrate material using the liquor ferri trichloridi Time be 10~120min.
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| H62黄铜疏水表面的制备及疏水机理研究;乔卫等;《科学技术与工程》;20091231;第9卷(第24期);第7319-7324页 * |
| 烧结工艺对Cu-20Zn 黄铜力学性能的影响;黄钧声等;《粉末冶金材料科学与工程》;20101031;第15卷(第5期);第491-494页 * |
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