CN106702305A - Reciprocating pump 15Mpa pressure plunger piston coated with iron-based amorphous metal coating - Google Patents
Reciprocating pump 15Mpa pressure plunger piston coated with iron-based amorphous metal coating Download PDFInfo
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- CN106702305A CN106702305A CN201710190266.0A CN201710190266A CN106702305A CN 106702305 A CN106702305 A CN 106702305A CN 201710190266 A CN201710190266 A CN 201710190266A CN 106702305 A CN106702305 A CN 106702305A
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- China
- Prior art keywords
- coating
- plunger
- based amorphous
- reciprocating pump
- plunger piston
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Classifications
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/14—Pistons, piston-rods or piston-rod connections
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Details Of Reciprocating Pumps (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
Through practicing for many years, the invention provides the most advanced technology. The special iron-based amorphous alloy of American LMC corporation is introduced onto Chinese petroleum machinery to solve the problem of short service life of a water injection pump plunger piston. The amorphous alloy is also called as liquid-state metal, and refers to that a material under the solid-state condition remains the atom three-dimensional space disordering arrangement of the metal under the liquid-state condition, i.e., the metal does not have the inherent grain boundary; due to the grain boundary disappearance, compared with conventional alloy, the anti-corrosion performance, the hardness and the toughness of the amorphous alloy are greatly enhanced. The American LMC corporation is one of leading enterprises in the field in the global range. A reciprocating pump 15Mpa pressure plunger piston provided by the invention has the beneficial effects that the design is reasonable and practical; the service life of the 15Mpa plunger piston is prolonged; the cost is saved; the raw materials are saved; the reciprocating pump 15Mpa pressure plunger piston is suitable for the general popularization and use.
Description
Technical field
The present invention relates to amorphous alloy coating technical field, the reciprocating pump of Fe-based amorphous metal coating is especially coated
15Mpa pressure plungers.
Background technology
In machine components manufacture, frequently encounter and having the mechanical performance higher than part body required to the top layer of part,
Such as hardness, intensity, wearability, heat resistance, corrosion-resistant.To reach this purpose, usually one layer is coated using in piece surface
Coating with ideal performance material, this paint-on technique, in machine-building, extensive use.Domestic petroleum exploitation is most
Using stratum water flood recovery mode, reciprocating type plunger water injecting pump is the key equipment of water flood recovery, and operating pressure is about 10-
40Mpa or so, water filling pump plunger is the core component of water injecting pump, and institute's water filling matter contains sand grain thing and corrosive substance, by
Situations such as abrasion, corrosion and pressure exist, causes plunger groove, spot corrosion, coating shedding occur, its sealing difference is set to cause post
Plug failure.Because of plunger disabling, equipment has to shut down replacing, directly produces the frequent renewal cost of part of plunger, causes indirectly
Utilization rate of equipment and installations reduction.Current domestic petroleum water filling pump plunger is typically using corrosion resistant alloy just as base material, surface spraying weld nickel
60 grade alloy materials, because water quality is different, the operating pressure 15Mpa plunger life-spans are general only at 700 hours or so.
The content of the invention
The present invention provides state-of-the-art technology through putting into practice for many years, is that the proprietary Fe-based amorphous alloy of LMC companies of the U.S. is drawn
It is mechanically short to solve the problems, such as water filling pump plunger service life to use CNPC.Non-crystaline amorphous metal is also called liquid metal, is
The three dimensions that finger material remains metal atom under liquid situation under solid conditions is disorderly arranged, that is, metal does not have
Intrinsic crystal boundary, because the disappearance of crystal boundary, and conventional alloys are compared, the corrosion resistance of non-crystaline amorphous metal, hardness and toughness are significantly
Enhancing, U.S. LMC is the material in one of the leading enterprise in the global field.We by special plasma spray technology, amorphous
Alloy-coated in plunger surface, so as to greatly improve its service life.
The purpose of the present invention is achieved through the following technical solutions：The production technology comprises the following steps：（One）, base material
From 304 stainless steels, preliminary working is carried out by plunger design size, except being applied in the unilateral 0.5mm that reserves in piston reciprocation operation area
Outside layer surplus, other regions all should reach design requirement；（Two）, surface texturing treatment, using diamond dust or similar stiffness sandstone
Sandblast texturing treatment is carried out to plunger surface to improve Part Surface Roughness, it is desirable to which roughness reaches more than Sa12.5 microns；
（Three）, amorphous alloy material is sprayed using Supersonic Arc Spraying Technique, sprayed on material is Fe-based amorphous using LMC companies of the U.S.
Alloy, coating thickness is 0.7mm；（Four）, carry out grinding treatment to the plunger after spraying using grinding machine, be ground decrement 0.2mm, mill
Cut back-plunger parameters and reach plunger design requirement；（Five）, sealing pores are carried out using polyurethane, alcohol is used after the completion for the treatment of
Plunger surface is wiped, through final inspection, all technical reaches design requirement post-processing process to be terminated.
Replace the grade material of nickel 60 to do the coating material of plunger with Fe-based amorphous alloy, through experiment, operating pressure can be improved
More than 4 times of the service life of 15Mpa plungers.
The coating processes of non-crystaline amorphous metal have following main points：Coating layer thickness control is about 0.5mm；Substrate surface texturing is special
Treatment is strict, to improve binding strength.
The porosity produced using hole sealing agent filling spraying, reduces the probability that erosion penetrates into base material by hole.
Beneficial effects of the present invention：Present invention practicality reasonable in design, improves the service life of 15Mpa plungers, saves
Cost, saves raw material, and suitable popularity is used.
Figure of description
Fig. 1 is the plunger schematic diagram after present invention spraying；
Fig. 2 is the plunger schematic diagram before present invention spraying.
Specific embodiment
As shown in figure 1, coating the reciprocating pump 15Mpa pressure plungers of Fe-based amorphous metal coating, the production technology is included such as
Lower step：（One）, base material select 304 stainless steels, preliminary working is carried out by plunger design size, except in piston reciprocation operation area
Unilateral to reserve outside 0.5mm coating surpluses, other regions all should reach design requirement；（Two）, surface texturing treatment, using diamond dust
Or similar stiffness sandstone carries out sandblast texturing treatment to plunger surface to improve Part Surface Roughness, it is desirable to which roughness reaches
More than Sa12.5 microns；（Three）, amorphous alloy material sprayed using Supersonic Arc Spraying Technique, sprayed on material uses the U.S.
The Fe-based amorphous alloy of LMC companies, coating thickness is 0.7mm；（Four）, using grinding machine the plunger after spraying is carried out at grinding
Reason, is ground decrement 0.2mm, and grinding back-plunger parameters reach plunger design requirement；（Five）, carried out at sealing of hole using polyurethane
Reason, uses alcohol wipe plunger surface after the completion for the treatment of, through final inspection, all technical reaches design requirement post-processing process
Terminate.
Embodiment 1：
In January, -2017 in June, 2016, we choose sinopec two representative water-injection stations of Shengli Oil Field in China, using this
Inventive technique is ￠ 75mm*356mm, ￠ 70mm*355mm to specification, and the reciprocal pump plunger that operating pressure is 15Mpa is carried out
Coat the confirmatory experiment of non-crystalline material.
Implementation steps are as follows：
1st, plunger base material selects 304 stainless steels, sprays surplus into unilateral surplus 0.5mm is left by the Vehicle Processing of plunger drawing first
Size.
2nd, sandblast texturing treatment is carried out to plunger spray-coating surface, it is desirable to which roughness reaches more than Sa12.5 microns.
3rd, non-crystaline amorphous metal spraying is carried out to plunger using Ultrasonic Arc Sprayed equipment, coating thickness is 0.7mm.
4th, using cylindrical grinder grinding to design size after spraying.
5th, sealing pores are carried out using polyurethane, it is then clean with alcohol wipe, through checking each size of plunger to reach design
It is required that after carry out field test.
6th, the results show can improve more than 4 times of the service life of operating pressure 15Mpa plungers.
Claims (4)
1. the reciprocating pump 15Mpa pressure plungers of Fe-based amorphous metal coating are coated, it is characterised in that：The production technology includes as follows
Step：（One）, base material select 304 stainless steels, preliminary working is carried out by plunger design size, except in piston reciprocation operation area list
While reserving outside 0.5mm coating surpluses, other regions all should reach design requirement；（Two）, surface texturing treatment, using diamond dust or
Similar stiffness sandstone carries out sandblast texturing treatment to plunger surface to improve Part Surface Roughness, it is desirable to which roughness reaches
More than Sa12.5 microns；（Three）, amorphous alloy material sprayed using Supersonic Arc Spraying Technique, sprayed on material uses the U.S.
The Fe-based amorphous alloy of LMC companies, coating thickness is 0.7mm；（Four）, using grinding machine the plunger after spraying is carried out at grinding
Reason, grinding decrement 0.2mm；（Five）, sealing pores are carried out using polyurethane, alcohol wipe plunger surface is used after the completion for the treatment of, pass through
Final inspection, all technical reaches design requirement post-processing process to be terminated.
2. reciprocating pump 15Mpa pressure plungers of the Fe-based amorphous metal coating of coating according to claim 1, its feature exists
In：The coating material of plunger is done instead of the material of nickel 60 using Fe-based amorphous alloy.
3. the reciprocating pump 15Mpa pressure plungers of the Fe-based amorphous metal coating of coating according to claim 1 and 2, its feature
It is：Coating layer thickness is 0.5 mm.
4. the reciprocating pump 15Mpa pressure plungers of the Fe-based amorphous metal coating of coating according to claim 1 and 2, its feature
It is：The porosity produced using hole sealing agent filling spraying, reduces the probability that erosion penetrates into base material by hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710190266.0A CN106702305A (en) | 2017-03-28 | 2017-03-28 | Reciprocating pump 15Mpa pressure plunger piston coated with iron-based amorphous metal coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710190266.0A CN106702305A (en) | 2017-03-28 | 2017-03-28 | Reciprocating pump 15Mpa pressure plunger piston coated with iron-based amorphous metal coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106702305A true CN106702305A (en) | 2017-05-24 |
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ID=58887348
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710190266.0A Pending CN106702305A (en) | 2017-03-28 | 2017-03-28 | Reciprocating pump 15Mpa pressure plunger piston coated with iron-based amorphous metal coating |
Country Status (1)
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|---|---|
| CN (1) | CN106702305A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109423595A (en) * | 2017-09-01 | 2019-03-05 | 邢佑印 | A kind of surface spraying method of Rotator in Hydropower Station room |
| CN111826602A (en) * | 2020-08-15 | 2020-10-27 | 德清创智科技股份有限公司 | Preparation method of chemical slurry plunger pump with composite coating and product thereof |
| CN112063958A (en) * | 2020-07-28 | 2020-12-11 | 山东金泰非晶科技有限公司 | Reciprocating pump plunger coated with amorphous alloy coating and processing technology thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08134620A (en) * | 1991-04-24 | 1996-05-28 | Super Haadoroi:Kk | Formation of amorphous sprayed coating having high corrosion resistance and wear resistance |
| CN102650027A (en) * | 2011-12-19 | 2012-08-29 | 天津大学 | Production of carbon nanotube reinforced Fe-based amorphous alloy thermal spray coating and method |
| CN104032254A (en) * | 2014-05-16 | 2014-09-10 | 浙江欧耀机械有限公司 | Spraying process for abrasion resistant layer of plunger contact surface |
| CN105063546A (en) * | 2015-09-09 | 2015-11-18 | 科盾工业设备制造（天津）有限公司 | Method for thermally spraying amorphous alloy coating on heating surface in boiler |
| CN105177489A (en) * | 2015-06-05 | 2015-12-23 | 科盾工业设备制造（天津）有限公司 | Method for enhancing corrosion and wear resistance of metal member surface |
-
2017
- 2017-03-28 CN CN201710190266.0A patent/CN106702305A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08134620A (en) * | 1991-04-24 | 1996-05-28 | Super Haadoroi:Kk | Formation of amorphous sprayed coating having high corrosion resistance and wear resistance |
| CN102650027A (en) * | 2011-12-19 | 2012-08-29 | 天津大学 | Production of carbon nanotube reinforced Fe-based amorphous alloy thermal spray coating and method |
| CN104032254A (en) * | 2014-05-16 | 2014-09-10 | 浙江欧耀机械有限公司 | Spraying process for abrasion resistant layer of plunger contact surface |
| CN105177489A (en) * | 2015-06-05 | 2015-12-23 | 科盾工业设备制造（天津）有限公司 | Method for enhancing corrosion and wear resistance of metal member surface |
| CN105063546A (en) * | 2015-09-09 | 2015-11-18 | 科盾工业设备制造（天津）有限公司 | Method for thermally spraying amorphous alloy coating on heating surface in boiler |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109423595A (en) * | 2017-09-01 | 2019-03-05 | 邢佑印 | A kind of surface spraying method of Rotator in Hydropower Station room |
| CN112063958A (en) * | 2020-07-28 | 2020-12-11 | 山东金泰非晶科技有限公司 | Reciprocating pump plunger coated with amorphous alloy coating and processing technology thereof |
| CN111826602A (en) * | 2020-08-15 | 2020-10-27 | 德清创智科技股份有限公司 | Preparation method of chemical slurry plunger pump with composite coating and product thereof |
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Application publication date: 20170524 |
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