CN110116259A - A method of in stainless steel base surface overlaying wear resistant corrosion resistant layer - Google Patents
A method of in stainless steel base surface overlaying wear resistant corrosion resistant layer Download PDFInfo
- Publication number
- CN110116259A CN110116259A CN201910382646.3A CN201910382646A CN110116259A CN 110116259 A CN110116259 A CN 110116259A CN 201910382646 A CN201910382646 A CN 201910382646A CN 110116259 A CN110116259 A CN 110116259A
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- welding
- stainless steel
- steel base
- balladeur train
- corrosion resistant
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- 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
-
- 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
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- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The invention discloses a kind of method in stainless steel base surface overlaying wear resistant corrosion resistant layer, (1) walking mechanism uses cross balladeur train, and welding gun is arranged in cross balladeur train vertical beam bottom, drives workpiece rotation by rotating platform；Cross balladeur train, apart from stepping, is not stopped arc and is continuously welded according to setting；(2) stainless steel base welded is placed on above rotating platform, and overlay cladding is placed above stainless steel base；(3) workpiece does not preheat when welding, and directlys adopt impulse welding and is welded；(4) after welding, the welding wire insertion stainless steel base of fusing becames one structure with it, detects to layer, completes the built-up welding of wear resistant corrosion resistant layer.The present invention has the characteristics that easy to operate, at low cost.
Description
Technical field
The present invention relates to built-up welding field more particularly to a kind of sides in stainless steel base surface overlaying wear resistant corrosion resistant layer
Method.
Background technique
Austenitic stainless steel material is since its excellent corrosion resistance is using extremely wide, including various structural members are such as
Axis, axle sleeve, valve and flange.While austenitic stainless steel is due to the characteristic of itself, intensity, lower hardness, when there are metals
Between rub or when abrasive wear, wear-resisting property is excessively poor, causes service life partially short.Common practice is one layer of cobalt of built-up welding at present
Base or Ni-based hardstanding.
But when built-up welding cobalt-based, in layer due in stainless steel nickel element fuse into, hardness can be decreased obviously, have
Effect layer must reach 3mm or more (must reach 5mm or so when comprising machining allowance) and just be able to satisfy hardness requirement, while cobalt-based
Material is very expensive, and entire cost is very high；When built-up welding is Ni-based, one side nickel-base material is equally partially expensive, it is often more important that Ni-based
Cracking is very easy to when hardstanding built-up welding, it is necessary to built-up welding is carried out under 350 DEG C~500 DEG C of preheating temperature, execution conditions are very
Badly, and for irregular facing surface, success rate is very low.
Summary of the invention
Goal of the invention: in view of the deficiencies of the prior art with defect, the present invention provides a kind of in stainless steel base surface overlaying
The method of wear resistant corrosion resistant layer has the characteristics that easy to operate, at low cost.
Technical solution: a kind of method in stainless steel base surface overlaying wear resistant corrosion resistant layer of the invention, feature exist
In: include the following steps:
(1) walking mechanism uses cross balladeur train, and cross balladeur train is made of cross balladeur train vertical beam and cross balladeur train horizontal beam,
And welding gun is set in cross balladeur train vertical beam bottom, welding gun is remained stationary in welding, drives workpiece rotation by rotating platform；
After being often soldered into 360 degree of a circle, cross balladeur train, apart from stepping, is not stopped arc and is continuously welded according to setting；
(2) stainless steel base welded is placed on above rotating platform, and overlay cladding is placed above stainless steel base；Its
Middle stainless steel base is austenitic stainless steel alloy, and 16%~22% Cr element and 8%~12% is contained in alloying component
Ni element；Wherein overlay cladding is CW1460 welding wire, and the as-welded lower hardness HRC of welding wire is 57~62；
(3) workpiece does not preheat when welding, and directlys adopt impulse welding and is welded, and welding current peak value is 230A~270A/
Base value 130A~170A, weldingvoltage are 12V~14V, and speed of welding is 240mm/min~300mm/min, and step distance is
2.8mm~3.2mm, wire feed rate are 1700mm/min~2500mm/min, and heater current is 40A~90A；
(4) after welding, the welding wire insertion stainless steel base of fusing becames one structure with it, detects, welds to layer
Layer contain with a thickness of 1.5mm~3.5mm, in weld seam alloying component 11%~13.5% Cr element with 1%~4% Ni it is first
Element, weld hardness HRC are 35~50, that is, complete the built-up welding of wear resistant corrosion resistant layer.
Wherein, the source of welding current of welding gun is Fu Nisi TT5000 for maintaining in welding process in the step (1)
Welding arc, Fu Nisi TT2200 are used to provide the heated filament energy in welding process.
Wherein, in the step (2) CW1460 welding wire contain 0.45%~0.55% C element, 1% Mn below member
Element, 2.5%~3.5% Si element, 0.5% Ni element below, 9%~10% Cr element, remaining is Fe element.
Wherein, the cleaning of area to be welded is carried out in the step (2) before welding using power-operated shutter piece.
Wherein, when workpiece is placed on the rotating platform in the step (2), workpiece, adjustment are tapped by rubber hammer
Its center is overlapped with rotating platform center.
The utility model has the advantages that compared with prior art, the present invention has following remarkable advantage: Ni, Co in component of weld wire of the present invention
It is very low or do not have Deng higher constituent content is worth, so material cost is relatively low；Effective layer still can down to 0.5mm
Enough anticorrosive anti-wear performances are enough kept, manufacturing cost is further decreased；By the adjustment of welding condition, layer is hard
Degree can change in the range of HRC35~50, can satisfy the individual demand of hardness matching under wear-resisting operating condition；Execution conditions are wanted
It asks low, is not required to preheat when workpiece is smaller, when workpiece is larger or built-up welding position is irregular, it is only necessary to be preheated to 100 DEG C~150 DEG C, section
About construction cost while ensure preferable execution conditions.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram of overlay cladding and stainless steel base of the invention；
Fig. 3 is the welding wire of fusing of the invention and the structural schematic diagram of stainless steel base；
1 it is cross balladeur train vertical beam in figure, 2 be cross balladeur train horizontal beam, 3 be welding gun, 4 be overlay cladding, 5 is stainless base steel
Body, 6 be rotating platform, 7 be fusing welding wire.
Specific embodiment
With reference to the accompanying drawing and specific embodiment is further described technical solution of the present invention.
A kind of method in stainless steel base surface overlaying wear resistant corrosion resistant layer of the invention, includes the following steps:
(1) walking mechanism uses cross balladeur train, and cross balladeur train is by cross balladeur train vertical beam 1 and 2 groups of cross balladeur train horizontal beam
At, and welding gun 3 is set in 1 bottom of cross balladeur train vertical beam, welding gun 3 is remained stationary in welding, is started building by 6 band of rotating platform
Part rotation；After being often soldered into 360 degree of a circle, cross balladeur train, apart from stepping, is not stopped arc and is continuously welded according to setting；Welding gun
3 source of welding current is that Fu Nisi TT5000 is used to maintain the welding arc in welding process, and Fu Nisi TT2200 is for providing weldering
Heated filament energy in termination process；
(2) stainless steel base 5 welded is placed on 6 top of rotating platform, and places overlay cladding above stainless steel base 5
4；Wherein stainless steel base 5 is austenitic stainless steel alloy, in alloying component containing 16%~22% Cr element and 8%~
12% Ni element；Wherein overlay cladding 4 is CW1460 welding wire, and the as-welded lower hardness HRC of welding wire is 57~62；CW1460 welding wire contains
0.45%~0.55% C element, 1% Mn element below, 2.5%~3.5% Si element, 0.5% Ni element below,
9%~10% Cr element, remaining is Fe element；The cleaning of area to be welded is carried out before welding using power-operated shutter piece；Workpiece is put
It sets when on rotating platform 6, workpiece is tapped by rubber hammer, its center is adjusted and is overlapped with 6 center of rotating platform
?
(3) workpiece does not preheat when welding, and directlys adopt impulse welding and is welded, and welding current peak value is 230A~270A/
Base value 130A~170A, weldingvoltage are 12V~14V, and speed of welding is 240mm/min~300mm/min, and step distance is
2.8mm~3.2mm, wire feed rate are 1700mm/min~2500mm/min, and heater current is 40A~90A；
(4) after welding, the welding wire 7 of fusing is embedded in stainless steel base 5 and becames one structure with it, detects to layer,
Layer contains 11%~13.5% Cr element and 1%~4% Ni member with a thickness of 1.5mm~3.5mm, in weld seam alloying component
Element, weld hardness HRC are 35~50, that is, complete the built-up welding of wear resistant corrosion resistant layer.
Embodiment 1:304 material pipe simulating piece built-up welding 2mm thickness CW1460:
Base material is 304 forged fittings, outer diameter 192mm, wall thickness 20mm, height 70mm.Wherein C element content≤
0.08%, Mn constituent content be 2%, P element content≤0.045%, S constituent content≤0.03%, Si constituent content≤1%,
Cr constituent content is 18%~20%, Ni constituent content is 8%~11%.
Heap postwelding is completed, postwelding outer diameter is detected using vernier caliper, is compared with preceding outer diameter is welded, obtains layer thickness
Spend 2mm or so；Use the portable composition detection equipment detection weld seam alloying component of SpecX for Cr:13%, Ni:3%, Fe: remaining
Amount uses portable Leeb Hardness Tester detection weld seam HRC hardness for 40~42.
Embodiment 2:304 material pipe simulating piece built-up welding 3mm thickness CW1460:
Base material is 304 forged fittings, outer diameter 192mm, wall thickness 20mm, height 70mm.Wherein C element content≤
0.08%, Mn constituent content be 2%, P element content≤0.045%, S constituent content≤0.03%, Si constituent content≤1%,
Cr constituent content is 18%~20%, Ni constituent content is 8%~11%.
Heap postwelding is completed, postwelding outer diameter is detected using vernier caliper, is compared with preceding outer diameter is welded, obtains layer thickness
Spend 3mm or so；Use the portable composition detection equipment detection weld seam alloying component of SpecX for Cr:11.5%, Ni:1.5%, Fe:
Surplus uses portable Leeb Hardness Tester detection weld seam HRC hardness for 46~48.
Embodiment 3:316L material axle sleeve built-up welding 2.5mm thickness CW1460:
Base material is that 316L forges axle sleeve, and free end outer diameter is 75mm, and wall thickness 6.5mm, flange end outer diameter is 120mm, flange
Height 20mm, workpiece total height 100mm.Wherein C element content≤0.03%, Mn constituent content be 2%, P element content≤
0.045%, S constituent content≤0.03%, Si constituent content≤1%, Cr constituent content are 16%~18%, Ni constituent content is
11%~14%, Mo constituent content is 2%~3%.
Heap postwelding is completed, postwelding outer diameter is detected using vernier caliper, is compared with preceding outer diameter is welded, obtains layer thickness
Spend 2.5mm or so；Use SpecX portable composition detection equipment detection weld seam alloying component for Cr:11.6%, Ni:2.4%,
Mo:0.5%, Fe: surplus uses portable Leeb Hardness Tester detection weld seam HRC hardness for 43~45.
Claims (5)
1. a kind of method in stainless steel base surface overlaying wear resistant corrosion resistant layer, it is characterised in that: include the following steps:
(1) walking mechanism uses cross balladeur train, and cross balladeur train is by cross balladeur train vertical beam (1) and cross balladeur train horizontal beam (2) group
At, and welding gun (3) are set in cross balladeur train vertical beam (1) bottom, welding gun (3) is remained stationary in welding, passes through rotating platform
(6) workpiece rotation is driven；After being often soldered into 360 degree of a circle, cross balladeur train, apart from stepping, it is continuous not stopped arc according to setting
Welding；
(2) stainless steel base (5) welded is placed on above rotating platform (6), and built-up welding is placed above stainless steel base (5)
Layer (4)；Wherein stainless steel base (5) is austenitic stainless steel alloy, in alloying component containing 16%~22% Cr element with
8%~12% Ni element；Wherein overlay cladding (4) is CW1460 welding wire, and the as-welded lower hardness HRC of welding wire is 57~62；
(3) workpiece does not preheat when welding, and directlys adopt impulse welding and is welded, and welding current peak value is 230A~270A/ base value
130A~170A, weldingvoltage are 12V~14V, and speed of welding is 240mm/min~300mm/min, step distance 2.8mm
~3.2mm, wire feed rate are 1700mm/min~2500mm/min, and heater current is 40A~90A；
(4) after welding, welding wire (7) insertion stainless steel base (5) of fusing becames one structure with it, detects to layer,
Layer contains 11%~13.5% Cr element and 1%~4% Ni member with a thickness of 1.5mm~3.5mm, in weld seam alloying component
Element, weld hardness HRC are 35~50, that is, complete the built-up welding of wear resistant corrosion resistant layer.
2. a kind of method in stainless steel base surface overlaying wear resistant corrosion resistant layer according to claim 1, feature exist
In: the source of welding current of welding gun (3) is that Fu Nisi TT5000 is used to maintain the welding in welding process electric in the step (1)
Arc, Fu Nisi TT2200 are used to provide the heated filament energy in welding process.
3. a kind of method in stainless steel base surface overlaying wear resistant corrosion resistant layer according to claim 1, feature exist
In: in the step (2) CW1460 welding wire contain 0.45%~0.55% C element, 1% Mn element below, 2.5%~
3.5% Si element, 0.5% Ni element below, 9%~10% Cr element, remaining is Fe element.
4. a kind of method in stainless steel base surface overlaying wear resistant corrosion resistant layer according to claim 1, feature exist
In: carry out the cleaning of area to be welded in the step (2) before welding using power-operated shutter piece.
5. a kind of method in stainless steel base surface overlaying wear resistant corrosion resistant layer according to claim 1, feature exist
In: when workpiece is placed on rotating platform (6) in the step (2), workpiece is tapped by rubber hammer, adjusts its centre bit
It sets and is overlapped with rotating platform (6) center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910382646.3A CN110116259B (en) | 2019-05-09 | 2019-05-09 | Method for surfacing wear-resistant and corrosion-resistant layer on surface of stainless steel substrate |
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| CN201910382646.3A CN110116259B (en) | 2019-05-09 | 2019-05-09 | Method for surfacing wear-resistant and corrosion-resistant layer on surface of stainless steel substrate |
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| CN110116259A true CN110116259A (en) | 2019-08-13 |
| CN110116259B CN110116259B (en) | 2021-05-14 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113369652A (en) * | 2020-02-25 | 2021-09-10 | 中国科学院上海应用物理研究所 | Build-up welding method for improving surface wear resistance of stainless steel base material |
| CN114012209A (en) * | 2021-11-30 | 2022-02-08 | 中国铁建重工集团股份有限公司 | Surfacing method for main frame of driving and anchoring all-in-one machine |
| CN114226924A (en) * | 2021-12-16 | 2022-03-25 | 合肥通用机械研究院有限公司 | Welding method for improving performance of corrosion-resistant layer of stainless steel single-layer surfacing |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113369652A (en) * | 2020-02-25 | 2021-09-10 | 中国科学院上海应用物理研究所 | Build-up welding method for improving surface wear resistance of stainless steel base material |
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| CN114012209A (en) * | 2021-11-30 | 2022-02-08 | 中国铁建重工集团股份有限公司 | Surfacing method for main frame of driving and anchoring all-in-one machine |
| CN114226924A (en) * | 2021-12-16 | 2022-03-25 | 合肥通用机械研究院有限公司 | Welding method for improving performance of corrosion-resistant layer of stainless steel single-layer surfacing |
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