CN115491670A - Seamless steel pipe piercing plug - Google Patents
Seamless steel pipe piercing plug Download PDFInfo
- Publication number
- CN115491670A CN115491670A CN202210989687.0A CN202210989687A CN115491670A CN 115491670 A CN115491670 A CN 115491670A CN 202210989687 A CN202210989687 A CN 202210989687A CN 115491670 A CN115491670 A CN 115491670A
- Authority
- CN
- China
- Prior art keywords
- plug
- pipe
- side plate
- seamless steel
- head
- 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
Images
Classifications
-
- 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
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
- C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
-
- 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
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- 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
- C22C38/52—Ferrous alloys, e.g. steel alloys containing chromium with nickel with cobalt
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a seamless steel pipe perforating plug which comprises a push rod and a plug body, wherein the push rod and the plug body are fixed on a push rod trolley; and a cooling pipe is arranged in the center hole of the side plate, penetrates through the center of the support frame and extends to the head of the plug, and is bent and wound on the outer ring of the support frame to penetrate through the side plate. The invention greatly improves the wear resistance and high temperature resistance of the plug, reduces the steel sticking on the surface of the plug, reduces the workload of workers for polishing the steel sticking on the surface of the plug, improves the production efficiency, improves the quality of the inner wall of the pipe, prolongs the service life by more than one time, and has good economic benefit and social benefit.
Description
Technical Field
The invention relates to the technical field of perforating jacks, in particular to a seamless steel pipe perforating jack.
Background
The hot-rolled seamless steel pipe is rolled by a piercer, and the basic process of piercing and rolling comprises the following steps: the roller, guide plate and top form a closed hole pattern, the high-temp. metal can be continuously deformed in the region formed by said hole pattern, and finally the hollow pipe blank can be rolled out. The roller and the guide plate are relatively and fixedly installed according to the process requirements, the top head is installed on the top rod of the top rod trolley, and metal deformation is mainly concentrated on the top head due to the fact that the solid tube blank is punched into the hollow capillary tube; meanwhile, the top head works at high temperature and high pressure, so that the problems of high-temperature deformation, abrasion, nose collapse, hot-sticking steel, cracking and the like of the perforating top head are easily caused in the perforating process, the surface quality of the inner wall of the steel pipe is seriously influenced, and the top head cannot be used for a long time. The development of piercing plugs having good wear resistance, high temperature oxidation resistance and shock resistance has become an important issue in the production of steel pipes.
Disclosure of Invention
The invention aims to solve the technical problems and provides a seamless steel pipe perforating plug.
In order to achieve the technical purpose and achieve the technical requirements, the invention adopts the technical scheme that: the utility model provides a seamless steel pipe perforation top, is including ejector pin, the top body that is fixed in the ejector pin dolly, its characterized in that: the outer surface of the plug body is cladded with a reinforcing layer, the end face of the plug body is provided with a side plate, the side plate is provided with a support frame, and the support frame is arranged in the plug body; a cooling pipe is arranged in the center hole of the side plate, penetrates through the center of the support frame, extends to the head of the plug, is bent and wound on the outer ring of the support frame and penetrates through the side plate;
the reinforcing layer is formed by cladding iron-based alloy powder on the outer surface of the plug body through a laser cladding process, and the iron-based alloy powder comprises the following elements in percentage by mass: c:0.5 to 0.7%, cr:12.5 to 13.5%, al:0.2 to 0.5%, co:2.0 to 4.0%, mo:0.5 to 0.85%, ni:2.0 to 4.0%, W:0.5 to 1.0%, re:0.23 to 0.45 percent, and the balance being Fe and inevitable impurities.
Preferably, in the laser cladding process, alloy powder is synchronously conveyed, and a rapid transverse-flow carbon dioxide laser is used as a light source to perform continuous spiral feeding lap scanning on the top body; the main process parameters in the cladding process are as follows:
1) Laser power: 2500 to 3800W; defocus amount: 0mm;
2) Spot size: 2 to 3X 8 to 10mm;
3) Scanning speed: 200 to 300mm/min,
4) Powder feeding amount: 20 to 30g/min; particle size: 150 to 250 meshes;
5) Lapping amount: 40 to 60 percent;
6) Coating thickness: 1.2-2.5 mm;
7) Protective gas: argon gas;
8) Cooling by passing water inside: cladding temperature rise is less than 50 ℃.
Preferably, the support frame is of a hollow structure, and the head is of a round table shape, so that the cooling pipe can be wound on the head of the ejector conveniently.
Preferably, the cooling pipe comprises a water inlet pipe and a water outlet pipe, the water inlet pipe extends towards the head of the plug, a bending section is arranged at the inner end of the water inlet pipe, the bending section is connected with the spiral section, and the other end of the spiral section is connected with the water outlet pipe.
Compared with the traditional structure, the invention has the beneficial effects that:
1. according to the invention, the reinforcing layer is cladded on the outer surface of the plug body, so that the wear resistance and high temperature resistance of the plug are greatly improved, and the phenomena of hot sticking steel and cracking are reduced.
2. The laser cladding process parameters improve the convective mass transfer state of a laser molten pool so as to control the laser cladding to obtain a solidification process, and obtain a reinforcing layer with compact and uniform tissue and no cracks, air holes and segregation.
3. The spiral cooling pipe is arranged in the top body, so that the top is convenient to cool, and the phenomena of hot sticking steel and high-temperature deformation are reduced.
The invention reduces the sticking of steel on the surface of the top, reduces the workload of workers for polishing the sticking steel on the surface of the top, improves the production efficiency, improves the quality of the inner wall of the pipe, prolongs the service life by more than one time, and has good economic benefit and social benefit.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
in the figure: 1. the structure comprises a top head body, 2 reinforcing layers, 3 cooling pipes, 31 water outlet pipes, 32 water inlet pipes, 33 spiral sections, 34 bending sections, 4 supporting frames, 5 side plates and 6 top rods.
Detailed Description
The present invention is further described below.
Referring to the attached drawings, the seamless steel pipe perforating plug comprises a push rod 6 fixed on a push rod trolley and a plug body 1, and is characterized in that: the outer surface of the plug body 1 is cladded with a reinforcing layer 2, the end face of the plug body 1 is provided with a side plate 5, a support frame 4 is arranged on the side plate 5, and the support frame 4 is arranged in the plug body 1; a cooling pipe 3 is arranged in a central hole of the side plate 5, the cooling pipe 3 penetrates through the center of the support frame 4 to extend to the head of the plug, and then is bent and wound on the outer ring of the support frame 4 to penetrate through the side plate 5;
the reinforcing layer 2 is formed by cladding iron-based alloy powder on the outer surface of the plug body 1 through a laser cladding process, and the iron-based alloy powder comprises the following elements in percentage by mass: c:0.5 to 0.7%, cr:12.5 to 13.5%, al:0.2 to 0.5%, co:2.0 to 4.0%, mo:0.5 to 0.85%, ni:2.0 to 4.0%, W:0.5 to 1.0%, re:0.23 to 0.45 percent, and the balance of Fe and inevitable impurities.
In the preferred embodiment, the laser cladding process adopts synchronous conveying alloy powder, and takes a rapid transverse flow carbon dioxide laser as a light source to perform continuous spiral feeding lap scanning on the top body 1; the main process parameters in the cladding process are as follows:
1) Laser power: 2500 to 3800W; defocus amount: 0mm;
2) Spot size: 2 to 3X 8 to 10mm;
3) Scanning speed: 200 to 300mm/min,
4) Powder feeding amount: 20 to 30g/min; particle size: 150 to 250 meshes;
5) Lapping amount: 40 to 60 percent;
6) Coating thickness: 1.2-2.5 mm;
7) Protective gas: and argon gas.
In the preferred embodiment, the support frame 4 is a hollow structure, and the head part is a circular truncated cone, so that the cooling pipe 3 can be conveniently wound on the head part of the plug.
In this preferred embodiment, the cooling pipe 3 includes a water inlet pipe 32 and a water outlet pipe 31, the water inlet pipe 32 extends to the top head, a bent section 34 is provided at the inner end of the water inlet pipe 32, the bent section 34 is connected with a spiral section 33, and the other end of the spiral section 33 is connected with the water outlet pipe 31.
Example 1:
the mass percentages of the elements of the reinforcing layer are as follows: c:0.7%, cr:13.2%, al:0.3%, co:2.0%, mo:0.5%, ni:3.0%, W:0.7%, re:0.3% and the balance Fe and unavoidable impurities.
And cooling the piercing plug cladded with the reinforcing layer, placing the piercing plug in a heat treatment furnace for stress relief annealing at the annealing temperature of 500 ℃ for 10 hours, and polishing the reinforcing layer after discharging.
The hardness of the reinforcing layer in the embodiment is HRC56, and the number of the alloy steel pipes which are penetrated is 495.
Example 2:
the mass percentages of the elements of the reinforcing layer are as follows: c:0.55%, cr:13%, al:0.45%, co:2.4%, mo:0.8%, ni:2.5%, W:0.6%, re:0.4% and the balance Fe and unavoidable impurities.
And cooling the piercing plug cladded with the reinforcing layer, placing the piercing plug in a heat treatment furnace for stress relief annealing at the annealing temperature of 450 ℃ for 9 hours, and polishing the reinforcing layer after discharging.
The hardness of the reinforcing layer in the embodiment is HRC55, and the number of the penetrated alloy steel pipes is 482.
Example 3:
the mass percentages of the elements of the reinforcing layer are as follows: c:0.6%, cr:12.5%, al:0.4%, co:3%, mo:1.0%, ni:3.5%, W:0.9%, re:0.45% and the balance Fe and inevitable impurities.
And cooling the piercing plug coated with the reinforcing layer, placing the piercing plug in a heat treatment furnace for stress relief annealing at the annealing temperature of 600 ℃ for 11 hours, and polishing the reinforcing layer after discharging.
The hardness of the reinforcing layer in the embodiment is HRC57, and the number of the alloy steel pipes which are punched is 503.
The above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, but not intended to limit the scope of the present invention, and all equivalent technical solutions also belong to the scope of the present invention, and the scope of the present invention should be defined by the claims.
Claims (4)
1. The utility model provides a seamless steel pipe perforation top, includes ejector pin (6), top body (1) that are fixed in the ejector pin dolly, its characterized in that: a reinforcing layer (2) is cladded on the outer surface of the plug body (1), a side plate (5) is arranged on the end face of the plug body (1), a supporting frame (4) is arranged on the side plate (5), and the supporting frame (4) is arranged in the plug body (1); a cooling pipe (3) is arranged in a central hole of the side plate (5), the cooling pipe (3) penetrates through the center of the support frame (4) and extends to the head of the plug, and then the cooling pipe is bent and wound on the outer ring of the support frame (4) and penetrates through the side plate (5);
the reinforcing layer (2) is formed by cladding iron-based alloy powder on the outer surface of the plug body (1) through a laser cladding process, and the iron-based alloy powder comprises the following elements in percentage by mass: c:0.5 to 0.7%, cr:12.5 to 13.5%, al:0.2 to 0.5%, co:2.0 to 4.0%, mo:0.5 to 0.85%, ni:2.0 to 4.0%, W:0.5 to 1.0%, re:0.23 to 0.45 percent, and the balance being Fe and inevitable impurities.
2. The seamless steel pipe piercing plug of claim 1, wherein: the laser cladding process adopts synchronous conveying alloy powder, and takes a rapid transverse flow carbon dioxide laser as a light source to carry out continuous spiral feeding lap scanning on the top body (1); the main technological parameters in the cladding process are as follows:
1) Laser power: 2500 to 3800W; defocus amount: 0mm;
2) Spot size: 2 to 3X 8 to 10mm;
3) Scanning speed: 200 to 300mm/min,
4) Powder feeding amount: 20 to 30g/min; particle size: 150 to 250 meshes;
5) Lapping amount: 40 to 60 percent;
6) Coating thickness: 1.2-2.5 mm;
7) Protective gas: argon gas;
8) Cooling by passing water inside: the cladding temperature rise is less than 50 ℃.
3. The seamless steel tube piercing plug as claimed in claim 1, wherein: the supporting frame (4) is of a hollow structure, and the head of the supporting frame is of a round table shape, so that the cooling pipe (3) can be wound on the head of the ejector conveniently.
4. The seamless steel pipe piercing plug of claim 1, wherein: cooling tube (3) are including inlet tube (32), outlet pipe (31), inlet tube (32) extend to the top head, inlet tube (32) the inner is provided with bend section (34), bend section (34) and spiral section (33) link to each other, spiral section (33) other end links to each other with outlet pipe (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210989687.0A CN115491670A (en) | 2022-08-18 | 2022-08-18 | Seamless steel pipe piercing plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210989687.0A CN115491670A (en) | 2022-08-18 | 2022-08-18 | Seamless steel pipe piercing plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115491670A true CN115491670A (en) | 2022-12-20 |
Family
ID=84465795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210989687.0A Pending CN115491670A (en) | 2022-08-18 | 2022-08-18 | Seamless steel pipe piercing plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115491670A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109355653A (en) * | 2017-12-25 | 2019-02-19 | 宁波中物东方光电技术有限公司 | For the cladding alloy powder of perforating head reparation and its preparation, application method |
| CN110952090A (en) * | 2019-12-24 | 2020-04-03 | 芜湖点金机电科技有限公司 | Piercing plug made of metal-based composite material |
| CN111054756A (en) * | 2019-12-09 | 2020-04-24 | 上大新材料(泰州)研究院有限公司 | Plug with cooling structure |
| CN111218682A (en) * | 2020-01-09 | 2020-06-02 | 浙江工业大学 | Corrosion-resistant and wear-resistant iron-based laser cladding powder and laser cladding method thereof |
| CN211538977U (en) * | 2019-12-09 | 2020-09-22 | 上大新材料(泰州)研究院有限公司 | Plug with cooling structure |
| CN211803075U (en) * | 2020-01-22 | 2020-10-30 | 靖江市金鹏冶金机械制造有限公司 | Piercing plug cooling system of piercing mill |
| CN211803073U (en) * | 2020-02-26 | 2020-10-30 | 靖江市金鹏冶金机械制造有限公司 | Improved structure of punch top ejector rod |
| CN112474808A (en) * | 2020-11-10 | 2021-03-12 | 九江职业大学应用技术研究所 | Seamless steel pipe piercing plug and preparation method thereof |
| CN216881044U (en) * | 2021-11-03 | 2022-07-05 | 无锡市晟元金属制品有限公司 | Molybdenum-containing plug capable of being used at high temperature continuously |
-
2022
- 2022-08-18 CN CN202210989687.0A patent/CN115491670A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109355653A (en) * | 2017-12-25 | 2019-02-19 | 宁波中物东方光电技术有限公司 | For the cladding alloy powder of perforating head reparation and its preparation, application method |
| CN111054756A (en) * | 2019-12-09 | 2020-04-24 | 上大新材料(泰州)研究院有限公司 | Plug with cooling structure |
| CN211538977U (en) * | 2019-12-09 | 2020-09-22 | 上大新材料(泰州)研究院有限公司 | Plug with cooling structure |
| CN110952090A (en) * | 2019-12-24 | 2020-04-03 | 芜湖点金机电科技有限公司 | Piercing plug made of metal-based composite material |
| CN111218682A (en) * | 2020-01-09 | 2020-06-02 | 浙江工业大学 | Corrosion-resistant and wear-resistant iron-based laser cladding powder and laser cladding method thereof |
| CN211803075U (en) * | 2020-01-22 | 2020-10-30 | 靖江市金鹏冶金机械制造有限公司 | Piercing plug cooling system of piercing mill |
| CN211803073U (en) * | 2020-02-26 | 2020-10-30 | 靖江市金鹏冶金机械制造有限公司 | Improved structure of punch top ejector rod |
| CN112474808A (en) * | 2020-11-10 | 2021-03-12 | 九江职业大学应用技术研究所 | Seamless steel pipe piercing plug and preparation method thereof |
| CN216881044U (en) * | 2021-11-03 | 2022-07-05 | 无锡市晟元金属制品有限公司 | Molybdenum-containing plug capable of being used at high temperature continuously |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107553074B (en) | Manufacturing method of UNS N08810 iron-nickel based alloy large-caliber seamless pipe for high-temperature heating furnace | |
| CN110405121B (en) | Forging method of large supporting roll forge piece | |
| CN102294379B (en) | Method for manufacturing seamless steel pipe for high-pressure gas cylinder with large caliber | |
| CN102179681B (en) | Pipe mold manufacturing process adopting continuous-casting blank to forge and roll rough blank periodically | |
| CN101716715B (en) | Processing method of titanium and titanium alloy wires | |
| CN202438543U (en) | Punching and rolling equipment of high-alloy difficultly deformable seamless steel pipe | |
| CN102764838A (en) | Gear thermal precision forging machining process adopting carburizing steel 20CrMnTi as material | |
| CN105414428A (en) | Forging technique for cake forgings | |
| CN112775202B (en) | Preparation method of zirconium or zirconium alloy rolled section bar | |
| CN101381850A (en) | Alloyed steel plug for steel tube perforating and production method | |
| CN102069369A (en) | Processing technology of high-temperature alloy GH600 | |
| CN112708790B (en) | Preparation method of zirconium or zirconium alloy extrusion rolling thin-wall section | |
| CN113210455A (en) | Preparation method of high-temperature-resistant wear-resistant cobalt-based alloy wire | |
| CN105665468A (en) | Preparation method for high-precision large-diameter thin-walled titanium tube | |
| CN107552698A (en) | A kind of forging method of the resistant to hydrogen Steel Bars of HR 2 | |
| CN110976522A (en) | Composite roll collar of kocks rolling mill and manufacturing method | |
| CN113857283B (en) | Forming method of high-speed tool steel bar | |
| CN109825675A (en) | Heat exchanger tube and preparation method thereof for Steam Generators in Liquid Metal Fast Breeder Reactor | |
| CN115491670A (en) | Seamless steel pipe piercing plug | |
| CN113976629A (en) | Seamless pipe and preparation method thereof | |
| CN104841720A (en) | Method for producing large-caliber and thick-wall Cr15 bushed bearing by using steel ingot | |
| CN101579816B (en) | New method for manufacturing high alloy steel seamless pipe with heavy calibre by adopting steel pipe continuous rolling mill | |
| CN208373823U (en) | A kind of reinforcing bar continuous casting and rolling system | |
| CN211247758U (en) | Composite roll collar of kocks rolling mill | |
| CN110038917B (en) | Production method of composite core rod for continuous rolling unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |