CN107433382A - Cobalt-based resurfacing welding material and the top restorative procedure based on the material - Google Patents
Cobalt-based resurfacing welding material and the top restorative procedure based on the material Download PDFInfo
- Publication number
- CN107433382A CN107433382A CN201610353362.8A CN201610353362A CN107433382A CN 107433382 A CN107433382 A CN 107433382A CN 201610353362 A CN201610353362 A CN 201610353362A CN 107433382 A CN107433382 A CN 107433382A
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- CN
- China
- Prior art keywords
- restorative procedure
- cobalt
- welding
- welding material
- carried out
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- 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.)
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Classifications
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/167—Arc welding or cutting making use of shielding gas and of a non-consumable electrode
-
- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3046—Co as the principal constituent
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/04—Welding for other purposes than joining, e.g. built-up welding
- B23K9/044—Built-up welding on three-dimensional surfaces
- B23K9/046—Built-up welding on three-dimensional surfaces on surfaces of revolution
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/235—Preliminary treatment
Abstract
The invention provides a kind of cobalt-based resurfacing welding material and the top restorative procedure based on the material, the resurfacing welding material include following element：Cr, Ni, Mo, Co, Si, W, C etc..The restorative procedure comprises the following steps：After top to be repaired is carried out into turning, preheated at 295~385 DEG C；Built-up welding is carried out using the cobalt-based resurfacing welding material；It is heat-treated at 295~365 DEG C；Original size of the turning to top.Compared with prior art, the present invention has following beneficial effect：1st, head lifetime can roll 3 pieces/again after the restorative procedure come directly towards using this high alloy, and top service life improves 60%；2nd, 2000 yuan can be saved by the high cost of alloy ton steel such as the benefit accounting to rehabilitation cost and life-span upgrading 60%, rolling 13Cr；3rd, all producers with perforation unit can use the present invention to repair high alloy top.Application prospect is extensive.
Description
Technical field
The present invention relates to a kind of cobalt-based resurfacing welding material and the top restorative procedure based on the material, belong to
Hot rolled seamless steel tube technical field of tools.
Background technology
Interior table matter of the perforating head as the core tool for realizing perforation deformation, not only influence seamless steel pipe
Amount, and running stores are used as, the service life of top also has influence on the cost of steel pipe's production.High alloy
Come directly towards expensive, and the life-span is relatively low, and a new top can only roll less than 5 steel pipes, come directly towards
Cost occupy high-alloy steel pipe production most.Therefore, the service life for extending top is special
It is not that the service life that high alloy comes directly towards turns into the thing for compeling highly necessary solve.During perforating steel pipe by
Directly contacted in top with the tube blank inner wall of the condition of high temperature, and subject perforation procedure greatly axial direction
Pressure and deformation frictional force are so that top skin temperature sharply increases, when top surface temperature rise and stress
When situation exceedes its own heat resistance, will deform, steel bonding, collapse nose, or even rolls card, cause shadow
Ring the direct motion of product quality and production.
The main failure forms for producing the top of high-alloy steel are the head steel bonding of top, dissolve and gnaw meat
Deng, there is top after above failure mode and do to scrap processing, and come directly towards other positions do not damage substantially it is (good
It is good), larger waste be present.
The content of the invention
The purpose of invention is to provide a kind of restorative procedure of high alloy top, this restorative procedure
It can turn waste into wealth, extend the service life of top, reduce the production cost of high alloy.
The present invention is achieved by the following technical solutions：
A kind of cobalt-based resurfacing welding material, it includes the following element of percentage：
Cr：25.5~27.5%；Ni：2.2~4.2%；Mo：5.8~7.8%；Co：59.3~61.3%；
Si：0.5~1.5%；W：0.09~0.25%；C：0.2~0.5%；Surplus is inevitably miscellaneous
Matter.
Resurfacing welding material selection i.e. to consider with matrix material compatibility, again consider bead-welding technology adaptability,
It also disclosure satisfy that the Surface Machining hardening demand of subsequent turning processing.Head is come directly towards in perforation procedure
The power that is subject to is maximum, and because the aperture time was in 10~30 seconds scopes, the time is longer, and temperature rise is higher, head
Local temperature rise is in 800~1300 DEG C of scopes, therefore elevated temperature strength, high temperature toughness and high temperature to material
Wearability requires higher, built-up welding selection cobalt-based material be exactly mainly using this material high temperature obdurability with
The characteristics of wearability.Therefore, the resurfacing welding material in the present invention selects above-mentioned formula.
The performance of the resurfacing welding material of the present invention is as follows：
A kind of top restorative procedure based on foregoing cobalt-based resurfacing welding material, it comprises the following steps：
After top to be repaired is carried out into turning, preheated at 295~385 DEG C, preheating is mainly examined
Consider surfacing quality, strengthen the compatibility of matrix and resurfacing welding material using pre- heat energy, avoid producing built-up welding
Crack defect, therefore, the preheating temperature selected in the present invention is 295~385 DEG C；
Built-up welding is carried out using the cobalt-based resurfacing welding material, the thickness of built-up welding is according to old top heat fatigue thickness
To spend relevant, the matrix material of this heat fatigue layer wants car to fall, and heap is burn-on the higher material of heat resistance, this
Individual thickness range 6mm~8mm；
It is heat-treated at 295~365 DEG C, heap post weld heat treatment is will be in order to improve resurfacing welding material
With the uniformity of matrix material, and reach the intensity and hardness of requirement；
Turning comes directly towards the size before use to the original size of top.
Preferably, the method for the built-up welding is argon arc welding method.Argon arc welding is easy to operate, can push away
Wide property is strong, and cost is advantageous.
The argon arc welding method is carried out by argon tungsten-arc welding, and specific works parameter is：Tungsten electrode diameter
3mm, 4~6mm of gage of wire, 220~260A of welding current, 15~20L/min of argon flow amount,
12~18mm of nozzle bore, 120~130cm/min of wire feed rate.
Preferably, the time of the preheating is 28~48min.
Preferably, the time of the heat treatment is 40~60min.
Preferably, top restorative procedure of the invention also includes Surface hardening treatment and Surface Oxygen
The step of changing processing.Surface hardening treatment is to utilize the Surface Machining hardening characteristics of resurfacing welding material in itself,
Turning shaping after case hardness requirement be：HRC 30~38.
Preferably, the Surface hardening treatment is carried out by the method for turning, that is, is utilized
The characteristic of material in itself, Surface hardening treatment can be achieved by the turning of routine.
Preferably, the method for the surface oxidation treatment is oxygen rifle calcination method, i.e., in top table
Face forms one layer of fine and close oxide-film by oxygen rifle calcination.
Compared with prior art, the present invention has following beneficial effect：
1st, before the present invention being not used, high alloy head lifetime is 5 pieces/, is come directly towards using this high alloy
Restorative procedure after head lifetime can roll 3 pieces/again, top service life improves 60%；
2nd, by the benefit accounting to rehabilitation cost and life-span upgrading 60%, the contour conjunctions of 13Cr are rolled
Golden cost ton steel can save 2000 yuan；
3rd, all producers with perforation unit can use the present invention to repair high alloy top.Application prospect
Extensively.
Brief description of the drawings
It is of the invention by reading the detailed description made with reference to the following drawings to non-limiting example
Other features, objects and advantages will become more apparent upon：
Fig. 1 is the process chart of the top restorative procedure of the present invention.
Embodiment
With reference to specific embodiment, the present invention is described in detail.Following examples will be helpful to this
The technical staff in field further understands the present invention, but the invention is not limited in any way.It should refer to
Go out, to those skilled in the art, without departing from the inventive concept of the premise,
Various modifications and improvements can be made.These belong to protection scope of the present invention.
Each embodiment carries out overlay-operation, the tungsten electrode diameter of selection using argon tungsten-arc welding in the present invention
3mm, 4~6mm of gage of wire.
Embodiment 1
1, a kind of cobalt-based resurfacing welding material, specific composition：Cr%：25.5；Ni%：2.2；Mo%：
5.8；Co%：61.3；Si%：1；W%:0.25；C%：0.5；Impurity；
The performance of the cobalt-based resurfacing welding material of the present embodiment is as follows：
2, bead-welding technology.(as shown in Figure 1)
1) built-up welding thickness：6mm；
2) preheating temperature before built-up welding：385 DEG C, preheating time：28 minutes；
3) heap post weld heat treatment temperature：295 DEG C, heat treatment time：60 minutes, stove was as cold as room temperature；
4) surfacing equipment selection argon arc welding, controls 220~260A of welding current, argon flow amount
15~20L/min, 12~18mm of nozzle bore, 120~130cm/min of wire feed rate；
3, subsequent curing processing and oxidation processes.
1) case hardness after turning shaping：HRC 36.
2) calcination time 6 minutes.
3 high alloy 13Cr steel pipes are rolled after top is reached the standard grade after reparation again.
Embodiment 2
1, a kind of cobalt-based resurfacing welding material, specific composition：Cr%：27.5；Ni%：4.2；Mo%：
7.8；Co%：59.3；Si%0.5；W%:0.09；C%：0.35；Impurity；
The performance of the cobalt-based resurfacing welding material of the present embodiment is as follows：
2, bead-welding technology.
1) built-up welding thickness：7mm；
2) preheating temperature before built-up welding：295 DEG C, preheating time：48 minutes；
3) heap post weld heat treatment temperature：365 DEG C, heat treatment time：40 minutes, stove was as cold as room temperature；
4) surfacing equipment selection argon arc welding, controls 220~260A of welding current, argon flow amount
15~20L/min, 12~18mm of nozzle bore, 120~130cm/min of wire feed rate；
3, subsequent curing processing and oxidation processes.
1) case hardness after turning shaping：HRC 33.
2) calcination time 7 minutes.
4 13Cr high-alloy steel pipes are rolled after top is reached the standard grade after reparation again.
Embodiment 3
1, a kind of cobalt-based resurfacing welding material, specific composition：Cr%：26.5；Ni%：3.2；Mo%：
6.8；Co%：60.3；Si%：1.5；W%:0.17；C%：0.2；Impurity；
The performance of the cobalt-based resurfacing welding material of the present embodiment is as follows：
2, bead-welding technology.
1) built-up welding thickness：8mm；
2) preheating temperature before built-up welding：340 DEG C, preheating time：38 minutes；
3) heap post weld heat treatment temperature：330 DEG C, heat treatment time：50 minutes, stove was as cold as room temperature；
4) surfacing equipment selection argon arc welding, controls 220~260A of welding current, argon flow amount
15~20L/min, 12~18mm of nozzle bore, 120~130cm/min of wire feed rate；
3, subsequent curing processing and oxidation processes.
1) case hardness after turning shaping：HRC 37.
2) calcination time 8 minutes.
2 13Cr high-alloy steel pipes are rolled after top is reached the standard grade after reparation again.
In summary, only presently preferred embodiments of the present invention, not it is used for limiting implementation of the present invention
Scope, carried out by all shapes according to described in scope of the invention as claimed, construction, feature and spirit
Equivalent changes and modifications, it all should be included in scope of the presently claimed invention.
Claims (9)
- A kind of 1. cobalt-based resurfacing welding material, it is characterised in that the following element including percentage：Cr：25.5~27.5%；Ni：2.2~4.2%；Mo：5.8~7.8%；Co：59.3~61.3%； Si：0.5~1.5%；W：0.09~0.25%；C：0.2~0.5%；Surplus is inevitably miscellaneous Matter.
- 2. a kind of top restorative procedure of the cobalt-based resurfacing welding material based on described in claim 1, it is special Sign is, comprises the following steps：After top to be repaired is carried out into turning, preheated at 295~385 DEG C；Built-up welding is carried out using the cobalt-based resurfacing welding material；It is heat-treated at 295~365 DEG C；Original size of the turning to top.
- 3. top restorative procedure as claimed in claim 2, it is characterised in that the side of the built-up welding Method is argon arc welding method.
- 4. top restorative procedure as claimed in claim 3, it is characterised in that the argon arc welding method It is to be carried out by argon tungsten-arc welding, specific works parameter is：Tungsten electrode diameter 3mm, gage of wire 4~6mm, 220~260A of welding current, 15~20L/min of argon flow amount, nozzle bore 12~18mm, 120~130cm/min of wire feed rate.
- 5. as claimed in claim 2 top restorative procedure, it is characterised in that the preheating when Between be 28~48min.
- 6. top restorative procedure as claimed in claim 2, it is characterised in that the heat treatment Time is 40~60min.
- 7. top restorative procedure as claimed in claim 2, it is characterised in that also hard including surface The step of changing processing and surface oxidation treatment.
- 8. top restorative procedure as claimed in claim 7, it is characterised in that the Surface hardened layer Processing is carried out by the method for turning.
- 9. top restorative procedure as claimed in claim 7, it is characterised in that the surface oxidation The method of processing is oxygen rifle calcination method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610353362.8A CN107433382A (en) | 2016-05-25 | 2016-05-25 | Cobalt-based resurfacing welding material and the top restorative procedure based on the material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610353362.8A CN107433382A (en) | 2016-05-25 | 2016-05-25 | Cobalt-based resurfacing welding material and the top restorative procedure based on the material |
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| CN107433382A true CN107433382A (en) | 2017-12-05 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610353362.8A Pending CN107433382A (en) | 2016-05-25 | 2016-05-25 | Cobalt-based resurfacing welding material and the top restorative procedure based on the material |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109530853A (en) * | 2019-01-03 | 2019-03-29 | 苏州慧金新材料科技有限公司 | A kind of preparation method of aluminium alloy smelting tool |
| CN109926744A (en) * | 2019-04-30 | 2019-06-25 | 大连海泰轴承制造有限公司 | A kind of bearing ring processing Ring Rolling Machine cone roller two metal solder method |
| CN111655874A (en) * | 2018-02-07 | 2020-09-11 | 住友重机械精密铸锻株式会社 | Regeneration method of tool material and tool material |
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| CN103990889A (en) * | 2013-02-18 | 2014-08-20 | 沈阳透平机械股份有限公司 | Welding technology for surfaced abrasion-resistant bronze layer in cross head pin hole |
| CN104625606A (en) * | 2014-12-05 | 2015-05-20 | 东方电气集团东方汽轮机有限公司 | Small turbine stainless steel rotor forming method |
| CN105349995A (en) * | 2015-12-14 | 2016-02-24 | 西安文理学院 | Laser-cladding cobalt-base alloy powder and repairing method for repairing damaged expander blade |
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| JPS63230855A (en) * | 1987-03-20 | 1988-09-27 | Nkk Corp | High chrome heat resisting alloy |
| WO2011036045A1 (en) * | 2009-09-25 | 2011-03-31 | Siemens Aktiengesellschaft | Blade for use in two-phase flows and method for producing such a blade |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111655874A (en) * | 2018-02-07 | 2020-09-11 | 住友重机械精密铸锻株式会社 | Regeneration method of tool material and tool material |
| CN109530853A (en) * | 2019-01-03 | 2019-03-29 | 苏州慧金新材料科技有限公司 | A kind of preparation method of aluminium alloy smelting tool |
| CN109530853B (en) * | 2019-01-03 | 2021-08-03 | 苏州慧金新材料科技有限公司 | Preparation method of tool for smelting aluminum alloy |
| CN109926744A (en) * | 2019-04-30 | 2019-06-25 | 大连海泰轴承制造有限公司 | A kind of bearing ring processing Ring Rolling Machine cone roller two metal solder method |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171205 |
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