CN107725352A - A kind of plunger - Google Patents
A kind of plunger Download PDFInfo
- Publication number
- CN107725352A CN107725352A CN201610899371.7A CN201610899371A CN107725352A CN 107725352 A CN107725352 A CN 107725352A CN 201610899371 A CN201610899371 A CN 201610899371A CN 107725352 A CN107725352 A CN 107725352A
- Authority
- CN
- China
- Prior art keywords
- flux
- cored wire
- hard alloy
- core
- substrate core
- Prior art date
- 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
Links
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
- C22C27/04—Alloys based on tungsten or molybdenum
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
- C22C30/02—Alloys containing less than 50% by weight of each constituent containing copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The present invention provides a kind of plunger, including cylindric substrate core, substrate core periphery are provided with hard alloy heat resistant and wear resistant layer；The substrate core material is 42# chrome molybdenums;The hard alloy heat resistant and wear resistant layer includes the raw material of following mass percents：Mo:25 35%, Cr:15 25%, Ni:15 25%, C:0.3 2%, Al:0.5 3%, Cu:2 4%, La：0.2 1.3%, surplus Fe.The present invention uses deposition techniques, hard alloy new material is combined more firmly with substrate core, will not fall off.Meanwhile containing substantial amounts of Mo elements in hard alloy new material, at work, working face friction can form Mo oxidation product to plunger, and they have certain lubrication to contact surface, reduce the frictional dissipation of material, also improve corrosion resistance.
Description
Technical field
The present invention relates to a kind of machine components, more particularly to a kind of plunger.
Background technology
Failure analysis is carried out to plungers pump plunger surface with ESEM (SEM) analysis method.Analysis shows, domestic post
Plug main failure forms are abrasive wear, with mild corrosion and fatigue;U.S.'s plunger main failure forms are that surface is seriously rotten
Erosion, fatigue and compound are peeled off.The nickel-base alloy of domestic plunger top layer built-up welding, ni content is high, and crystal grain is thin, has preferably resistance to
Corrosive nature, available for acid fracturing operation;The content of U.S. plunger top layer double carbide is high, coarse grains, and hardness is high,
The performance of wear-resisting grinding abrasion is high, available for sand fracturing operation.
The content of the invention
The present invention in view of the shortcomings of the prior art, the failure worn and corroded to overcome plunger easily to occur at work
Form, provide a kind of plunger.
In order to realize appeal purpose, concrete technical scheme of the invention is as follows：
A kind of plunger, including cylindric substrate core, substrate core periphery are provided with hard alloy heat resistant and wear resistant layer；The substrate core
Material is 42# chrome molybdenums;The hard alloy heat resistant and wear resistant layer includes the raw material of following mass percents：Mo:25-35%, Cr:
15-25%, Ni:15-25%, C:0.3-2%, Al:0.5-3%, Cu:2-4%, La：0.2-1.3%, surplus Fe.
As preference：The hard alloy heat resistant and wear resistant layer is to be deposited over by deposition techniques above the core of base.
As preference：The deposition techniques of the hard alloy heat resistant and wear resistant layer are as follows：
First, flux-cored wire is prepared:First powdery metal raw material was mixed by mixing powder machine mixing 2-3 hours by mixed powder machine
Powder be fabricated to flux-cored wire as medicine core;The flux-cored wire skin material is:Ordinary carbon steel or stainless steel, medicine core
Medicinal powder inside welding wire accounts for the 40%-45% of whole Quality of Final Welding Wire;The a diameter of 2.0mm of flux-cored wire;
2nd, between base core being heated up into 150-200 degree, flux-cored wire prepared by step 1 is then passed through into current regulation built-up welding
In base core periphery, the substrate core outer wrap insulation material of flux-cored wire then will be welded with, is produced after being incubated ten hours.
As preference：The insulation material is cotton products；As long as the substrate core itself for being welded with flux-cored wire is warm allowing
The slower cans of amount dissipation.
The advantageous effects of the present invention：The present invention uses deposition techniques, makes hard alloy new material and substrate core phase
With reference to more firmly, will not fall off.Meanwhile contain substantial amounts of Mo elements in hard alloy new material, plunger at work, working face
Friction can form Mo oxidation product, and they have certain lubrication to contact surface, reduce the frictional dissipation of material, also carry
High corrosion resistance；And Mo, Cr, Ni in composition, alloy is formed, can increase corrosion resistant performance, Al, Cu, element can be with
Strengthen toughness, hardness is got a promotion.Cr and C element ratio is higher, can produce M7C3Type carbide, M7C3Type carbide makes
The hardness and wear resistance of material gets a promotion.
Brief description of the drawings
Fig. 1 positions mechanism sectional view of the present invention；
Wherein：Substrate core 1, hard alloy heat resistant and wear resistant layer 2.
Embodiment
Below in conjunction with the accompanying drawings, the effective means of the technical solution taken by the invention to solve the above technical problem is done into
One step explanation：
Embodiment 1
In Fig. 1, a kind of plunger, including cylindric substrate core (1), it is resistance to that substrate core (1) periphery is provided with hard alloy high temperature resistant
Grind layer (2)；Substrate core (1) material is 42# chrome molybdenums;The hard alloy heat resistant and wear resistant layer (2) includes following quality
The raw material of percentage：Mo:25%, Cr:15%, Ni:15%, C:0.3%, Al:0.5%, Cu:2%, La：0.2%, surplus Fe.
Hard alloy heat resistant and wear resistant layer 2 is to be deposited over by deposition techniques above the core of base in the present invention；Hard closes
The deposition techniques of golden heat resistant and wear resistant layer 2 are as follows：
First, flux-cored wire is prepared:First by powdery metal raw material proportionally by mixing powder machine mixing 2-3 hours, by mixed powder
The powder that machine mixed is fabricated to flux-cored wire as medicine core;The flux-cored wire skin material is:Ordinary carbon steel is stainless
Steel, the medicinal powder inside flux-cored wire account for the 40%-45% of whole Quality of Final Welding Wire;The a diameter of 2.0mm of flux-cored wire;
2nd, between base core being heated up into 150-200 degree, flux-cored wire prepared by step 1 is then passed through into current regulation built-up welding
In base core periphery, the substrate core outer wrap insulation material of flux-cored wire then will be welded with, is produced after being incubated ten hours.
Insulation material is cotton products in the present invention.It is as long as slow allowing the substrate core self heat for being welded with flux-cored wire to dissipate
A little cans.
Embodiment 2
In Fig. 1, a kind of plunger, including cylindric substrate core (1), it is resistance to that substrate core (1) periphery is provided with hard alloy high temperature resistant
Grind layer (2)；Substrate core (1) material is 42# chrome molybdenums;The hard alloy heat resistant and wear resistant layer (2) includes following quality
The raw material of percentage：Mo:35%, Cr:25%, Ni:25%, C:2%, Al:3%, Cu:4%, La：1.3%, surplus Fe.
Hard alloy heat resistant and wear resistant layer 2 is to be deposited over by deposition techniques above the core of base in the present invention；Hard closes
The deposition techniques of golden heat resistant and wear resistant layer 2 are as follows：
First, flux-cored wire is prepared:First by powdery metal raw material proportionally by mixing powder machine mixing 2-3 hours, by mixed powder
The powder that machine mixed is fabricated to flux-cored wire as medicine core;The flux-cored wire skin material is:Ordinary carbon steel is stainless
Steel, the medicinal powder inside flux-cored wire account for the 40%-45% of whole Quality of Final Welding Wire;The a diameter of 2.0mm of flux-cored wire;
2nd, between base core being heated up into 150-200 degree, flux-cored wire prepared by step 1 is then passed through into current regulation built-up welding
In base core periphery, the substrate core outer wrap insulation material of flux-cored wire then will be welded with, is produced after being incubated ten hours.
Insulation material is cotton products in the present invention.It is as long as slow allowing the substrate core self heat for being welded with flux-cored wire to dissipate
A little cans.
The present invention tries out in the factory of Wuhan one, and compared to prior art, its service life improves 2 times.
Although this specification has more used substrate core 1, the grade term of hard alloy heat resistant and wear resistant layer 2, it is not precluded from making
With the possibility of other terms.Using these terms just for the sake of more easily describing the essence of the present invention, they are explained
The limitation additional into any one is all disagreed with spirit of the present invention.
It should be appreciated that the part that this specification does not elaborate belongs to prior art.
It should be appreciated that the above-mentioned description for preferred embodiment is more detailed, therefore can not be considered to the present invention
The limitation of scope of patent protection, one of ordinary skill in the art are not departing from power of the present invention under enlightenment of the present utility model
Profit is required under protected ambit, can also be made replacement or deformation, be each fallen within protection scope of the present invention, this hair
It is bright scope is claimed to be determined by the appended claims.
Claims (4)
- A kind of 1. plunger, it is characterised in that:Including cylindric substrate core (1), substrate core (1) periphery is provided with the resistance to height of hard alloy Warm wearing layer (2)；Substrate core (1) material is 42# chrome molybdenums;The hard alloy heat resistant and wear resistant layer (2) includes following The raw material of mass percent：Mo:25-35%, Cr:15-25%, Ni:15-25%, C:0.3-2%, Al:0.5-3%, Cu:2-4%, La： 0.2-1.3%, surplus Fe.
- 2. shell-rinding wheel as claimed in claim 1, it is characterised in that:The hard alloy heat resistant and wear resistant layer (2) is by molten Deposited technique is deposited over above the core of base.
- 3. shell-rinding wheel as claimed in claim 2, it is characterised in that:The deposition work of the hard alloy heat resistant and wear resistant layer (2) Skill is as follows：First, flux-cored wire is prepared:First by powdery metal raw material proportionally by mixing powder machine mixing 2-3 hours, by mixed powder The powder that machine mixed is fabricated to flux-cored wire as medicine core;The flux-cored wire skin material is:Ordinary carbon steel is stainless Steel, the medicinal powder inside flux-cored wire account for the 40%-45% of whole Quality of Final Welding Wire;The a diameter of 2.0mm of flux-cored wire;2nd, between base core being heated up into 150-200 degree, flux-cored wire prepared by step 1 is then passed through into current regulation built-up welding In base core periphery, regulation electric current is in 155-158A;Then the substrate core outer wrap insulation material of flux-cored wire will be welded with, is produced after being incubated ten hours.
- 4. shell-rinding wheel as claimed in claim 3, it is characterised in that:The insulation material is cotton products.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610899371.7A CN107725352A (en) | 2016-10-17 | 2016-10-17 | A kind of plunger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610899371.7A CN107725352A (en) | 2016-10-17 | 2016-10-17 | A kind of plunger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107725352A true CN107725352A (en) | 2018-02-23 |
Family
ID=61201434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610899371.7A Pending CN107725352A (en) | 2016-10-17 | 2016-10-17 | A kind of plunger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107725352A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113234985A (en) * | 2021-05-08 | 2021-08-10 | 武汉春禾科技有限公司 | High-pressure jet mill plunger for food and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006014222A1 (en) * | 2006-03-28 | 2007-10-04 | Linde Material Handling Gmbh & Co. Kg | Piston of hydrostatic piston machine, e.g. axial piston engine in angular plate, has cavity hole with expansion body, which is arranged, and is made of material with large thermal expansion co-efficient |
| CN102161137A (en) * | 2011-04-27 | 2011-08-24 | 武汉铁锚焊接材料股份有限公司 | Flux-cored wire, preparation and application thereof |
| CN102267023A (en) * | 2011-07-29 | 2011-12-07 | 台州海翔焊接材料有限公司 | Metal-powder type stainless steel flux-cored wire |
| CN104289826A (en) * | 2014-10-31 | 2015-01-21 | 武汉科技大学 | Boride hardfacing flux-cored wire and preparation method thereof |
| CN205207156U (en) * | 2015-12-27 | 2016-05-04 | 河南泛锐复合材料研究院有限公司 | Wear -resisting anticorrosive hydraulic plunger excels in |
| CN106011724A (en) * | 2016-06-27 | 2016-10-12 | 中石化石油工程机械有限公司第四机械厂 | Manufacturing process for improving abrasion resistance of outer circle surface of plunger |
-
2016
- 2016-10-17 CN CN201610899371.7A patent/CN107725352A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006014222A1 (en) * | 2006-03-28 | 2007-10-04 | Linde Material Handling Gmbh & Co. Kg | Piston of hydrostatic piston machine, e.g. axial piston engine in angular plate, has cavity hole with expansion body, which is arranged, and is made of material with large thermal expansion co-efficient |
| CN102161137A (en) * | 2011-04-27 | 2011-08-24 | 武汉铁锚焊接材料股份有限公司 | Flux-cored wire, preparation and application thereof |
| CN102267023A (en) * | 2011-07-29 | 2011-12-07 | 台州海翔焊接材料有限公司 | Metal-powder type stainless steel flux-cored wire |
| CN104289826A (en) * | 2014-10-31 | 2015-01-21 | 武汉科技大学 | Boride hardfacing flux-cored wire and preparation method thereof |
| CN205207156U (en) * | 2015-12-27 | 2016-05-04 | 河南泛锐复合材料研究院有限公司 | Wear -resisting anticorrosive hydraulic plunger excels in |
| CN106011724A (en) * | 2016-06-27 | 2016-10-12 | 中石化石油工程机械有限公司第四机械厂 | Manufacturing process for improving abrasion resistance of outer circle surface of plunger |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113234985A (en) * | 2021-05-08 | 2021-08-10 | 武汉春禾科技有限公司 | High-pressure jet mill plunger for food and preparation method thereof |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180223 |