CN107335943A - Tractor idle pulley built-up welding flux cored wire and its welding procedure - Google Patents
Tractor idle pulley built-up welding flux cored wire and its welding procedure Download PDFInfo
- Publication number
- CN107335943A CN107335943A CN201710714779.7A CN201710714779A CN107335943A CN 107335943 A CN107335943 A CN 107335943A CN 201710714779 A CN201710714779 A CN 201710714779A CN 107335943 A CN107335943 A CN 107335943A
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- CN
- China
- Prior art keywords
- welding
- built
- idle pulley
- flux cored
- cored wire
- 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.)
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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
- 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
- B23K35/3053—Fe 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
- 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
- B23K35/3053—Fe as the principal constituent
- B23K35/3093—Fe as the principal constituent with other elements as next major constituents
-
- 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
- B23K35/40—Making wire or rods for soldering or welding
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nonmetallic Welding Materials (AREA)
- Arc Welding In General (AREA)
Abstract
The present invention relates to tractor idle pulley built-up welding flux cored wire and its welding procedure, include the component of following mass percent：Zirconium carbide Metal-ceramie powder 0.05~0.11%, electrolytic manganese powder 1.48~2.11%, ferrosilicon powder 0.76~1.1%, chromium carbide composite powder 2.01~2.99%, niobium powder 0.05~0.11%, water fog method iron powder surplus.The present invention is reasonable using component collocation, while realizing to tractor idle pulley repairing sizes, tractor idle pulley surface quality is also further improved, so as to extend the service life of tractor idle pulley.
Description
Technical field
The present invention relates to remanufacture processing technique field, specifically tractor idle pulley built-up welding flux cored wire and its weldering
Connect technique.
Background technology
Tractor is the self-propelled motor machine for drawing and driving Work machine to complete every mobile operation, by function
Divide the tractors such as agricultural, industry and specific use with purposes.Idle pulley is one of parts important on tractor, is being actually used
During, wear phenomenon occurs in idle pulley, when abrasion exceedes to a certain degree, then needs timely to be changed, otherwise can shadow
Ring the normal work to tractor.This mode maintenance cost is higher, and the idle pulley after abrasion does not recycle, and causes tight
The wasting of resources of weight, therefore, there is an urgent need to a kind of method that can be recycled to tractor idle pulley.
The content of the invention
In order to solve deficiency of the prior art, the present invention proposes tractor idle pulley built-up welding flux cored wire and its Welder
Skill.
The technical problems to be solved by the invention are realized using following technical scheme：
Tractor idle pulley built-up welding flux cored wire, include the component of following mass percent：
Zirconium carbide cermet powder purity is high, even particle size distribution, high surface, has high temperature resistant, anti-oxidant, intensity
High, hardness height, thermal conductivity are good, and good toughness, zirconium carbide is a kind of important high-melting-point, high intensity and corrosion resistant thermal structure
Material, and there is efficient absorption visible ray, reflect the characteristic of infrared ray and energy storage etc..Fusing point is 3540 DEG C, solid density
6.66g/cm3, 6.7 × 10-6/ DEG C of thermal coefficient of expansion, microhardness 2600kg/mm2, resistivity is 57~75/ μ Ω cm, is opened
The temperature for beginning to aoxidize strongly is 1100~1400 DEG C.
The ferrosilicon powder includes the component of following mass percent：Si is 42~48%, C is 0~0.1%, S be 0~
0.01%th, P be 0~0.02%, Fe be surplus.Ferrosilicon is to use electric furnace smelting with coke, steel cuttings, quartz (or silica) for raw material
Manufactured ferro-silicium.Because silicon and oxygen are easy to be combined to silica, so ferrosilicon is usually used in making deoxidier during steel-making, together
When due to SiO2Substantial amounts of heat is released during generation, while deoxidation, is also advantageous to improving liquid steel temperature.Meanwhile ferrosilicon
Alloying element addition agent is alternatively arranged as, is widely used in low-alloy structural steel, spring steel, bearing steel, heat resisting steel and electrical steel
Among, ferrosilicon is commonly used for reducing agent in ferroalloy production and chemical industry.
The chromium carbide composite powder includes the component of following mass percent：Cr3C2For 75%, NiCr 25%.Nickel
The chromium carbide compounded powder of chromium is made up of the component of two kinds of different performances, and wherein NiCr alloys have good heat-proof corrosion-resistant, is commonly used
Composition be 80%Ni-20%Cr.There are Cr in Cr-C systems3C2、Cr7C3And Cr23C6Three kinds of compounds, fusion temperature are respectively 1810
DEG C, 1726 DEG C and 1575 DEG C.Wherein Cr3C2It is most common with most important one kind.Feature possessed by these chromium carbides is,
Oxidation resistance is most strong in metal carbides, only just starts significantly oxidation at 1100-1400 DEG C in atmosphere.In hot conditions
Under still keep at a relatively high hardness.Cr3C2Also there is very strong corrosion resistance and wearability, be in dilution heat of sulfuric acid
Corrosion proof 30 times of 1Crl8Ni9Ti stainless steels, and be then 50 times of Co-WC alloys in steam.Use NiCr-Cr3C2Spraying electricity
Factory's generator tube, transducer wall's abrasion amount are reduced to 0.03mm/ by 1.5-2.0mm/, make its operating lifetime to 7 years with
On.Generally heat-resisting alloy Binder Phase and Cr are used as by the use of NiCr3C2Hard phase near-thermal sprays to form coating, just constitutes excellent resist
High-temperature and wear-proof.Using or plasma spray coating process, NiCr alloys and Cr3C2Ceramic energy has sufficient condition to form homogeneous
Metal-cermic coating, this coating has wear-resistant, erosion resistance, cavitation erosion and micro- function such as shake under the high temperature conditions, while also resists
High-temperature gas.
The niobium powder includes the component of following mass percent：O is 0.10~0.5%, H is 0.005~0.01%, C is
0.05~0.08%, N is 0.04~0.06%, Fe is 0.01~0.05%, Si is 0.005~0.01%, Ni be 0~
0.005%th, Cr is 0~0.005%, Ta is 0~0.5%, W is 0.005~0.01%, Mo is 0.003~0.005%, Ti is
0.003~0.005%, Mn is 0.003~0.005%, Cu is 0.003~0.005%, P is 0~0.01%, S be 0~
0.01%th, surplus Nb.
The welding procedure of tractor idle pulley built-up welding flux cored wire, welding wire is welded in workpiece surface by welding machine heap.
The greasy dirt at workpiece built-up welding should be removed before built-up welding.
Welding wire should be bakeed before built-up welding.
Voltage during built-up welding is 34~46V, and weldering speed is 350~450mm/min.
For Φ 3.2mm welding wire, electric current is 300~330A during built-up welding.
For Φ 4mm welding wire, electric current is 330~450A during built-up welding.
The beneficial effects of the invention are as follows：The present invention is reasonable using component collocation, and surfacing layer is martensite+residual austenite
Body, resistance to metal-metal abrasion is particularly excellent, has good welding technological properties, is realizing to tractor idle pulley repairing sizes
While, tractor idle pulley surface quality is also further improved, so as to extend the service life of tractor idle pulley.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, below it is right
The present invention is expanded on further.
Embodiment one：
Tractor idle pulley built-up welding flux cored wire, include the component of following mass percent：
The ferrosilicon powder includes the component of following mass percent：Si is 42%, C 0.1%, S 0.01%, P are
0.02%th, Fe is surplus.
The chromium carbide composite powder includes the component of following mass percent：Cr3C2For 75%, NiCr 25%.
The niobium powder includes the component of following mass percent：O is 0.10%, H 0.01%, C 0.08%, N are
0.04%th, Fe 0.05%, Si 0.005%, Ni 0.005%, Cr 0.005%, Ta 0.5%, W 0.005%, Mo
For 0.005%, Ti 0.005%, Mn 0.005%, Cu 0.003%, P 0.01%, S 0.01%, surplus Nb.
The welding procedure of tractor idle pulley built-up welding flux cored wire, welding wire is welded in workpiece surface by welding machine heap.
The greasy dirt at workpiece built-up welding should be removed before built-up welding.
Welding wire should be bakeed before built-up welding.
Voltage during built-up welding is 34V, weldering speed 450mm/min.
For Φ 3.2mm welding wire, electric current is 300A during built-up welding.
For Φ 4mm welding wire, electric current is 330A during built-up welding.
Embodiment two：
Tractor idle pulley built-up welding flux cored wire, include the component of following mass percent：
The ferrosilicon powder includes the component of following mass percent：Si is 48%, C 0.05%, S 0.003%, P are
0.01%th, Fe is surplus.
The chromium carbide composite powder includes the component of following mass percent：Cr3C2For 75%, NiCr 25%.
The niobium powder includes the component of following mass percent：O is 0.5%, H 0.005%, C 0.05%, N are
0.06%th, Fe 0.01%, Si 0.01%, Ni 0.001%, Cr 0.001%, Ta 0.1%, W 0.01%, Mo are
0.003%th, Ti 0.003%, Mn 0.003%, Cu 0.005%, P 0.005%, S 0.001%, surplus Nb.
The welding procedure of tractor idle pulley built-up welding flux cored wire, welding wire is welded in workpiece surface by welding machine heap.
The greasy dirt at workpiece built-up welding should be removed before built-up welding.
Welding wire should be bakeed before built-up welding.
Voltage during built-up welding is 46V, weldering speed 350mm/min.
For Φ 3.2mm welding wire, electric current is 330A during built-up welding.
For Φ 4mm welding wire, electric current is 450A during built-up welding.
Embodiment three：
Tractor idle pulley built-up welding flux cored wire, include the component of following mass percent：
The ferrosilicon powder includes the component of following mass percent：Si is 45%, C 0.01%, S 0.001%, P are
0.015%th, Fe is surplus.
The chromium carbide composite powder includes the component of following mass percent：Cr3C2For 75%, NiCr 25%.
The niobium powder includes the component of following mass percent：O is 0.3%, H 0.008%, C 0.07%, N are
0.05%th, Fe 0.03%, Si 0.008%, Ni 0.003%, Cr 0.003%, Ta 0.3%, W 0.008%, Mo
For 0.004%, Ti 0.004%, Mn 0.004%, Cu 0.004%, P 0.008%, S 0.006%, surplus Nb.
The welding procedure of tractor idle pulley built-up welding flux cored wire, welding wire is welded in workpiece surface by welding machine heap.
The greasy dirt at workpiece built-up welding should be removed before built-up welding.
Welding wire should be bakeed before built-up welding.
Voltage during built-up welding is 40V, weldering speed 420mm/min.
For Φ 3.2mm welding wire, electric current is 320A during built-up welding.
For Φ 4mm welding wire, electric current is 400A during built-up welding.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
For personnel it should be appreciated that the present invention is not limited by step embodiment, that described in step embodiment and specification is the present invention
Principle, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these change and
Improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent
Thing defines.
Claims (10)
1. tractor idle pulley built-up welding flux cored wire, it is characterised in that：Include the component of following mass percent：
2. tractor idle pulley built-up welding flux cored wire according to claim 1, it is characterised in that：The ferrosilicon powder include with
The component of lower mass percent：Si is 42~48%, C is 0~0.1%, S is 0~0.01%, P is 0~0.02%, Fe is remaining
Amount.
3. tractor idle pulley built-up welding flux cored wire according to claim 1, it is characterised in that：The chromium carbide is answered
Closing powder includes the component of following mass percent：Cr3C2For 75%, NiCr 25%.
4. tractor idle pulley built-up welding flux cored wire according to claim 1, it is characterised in that：The niobium powder includes following
The component of mass percent：O is 0.10~0.5%, H is 0.005~0.01%, C is 0.05~0.08%, N be 0.04~
0.06%th, Fe is 0.01~0.05%, Si is 0.005~0.01%, Ni is 0~0.005%, Cr is 0~0.005%, Ta 0
~0.5%, W is 0.005~0.01%, Mo is 0.003~0.005%, Ti is 0.003~0.005%, Mn be 0.003~
0.005%th, Cu is 0.003~0.005%, P is 0~0.01%, S is 0~0.01%, surplus Nb.
5. the welding procedure of tractor idle pulley built-up welding flux cored wire according to any one of claim 1 to 4, its feature
It is：Welding wire is welded in workpiece surface by welding machine heap.
6. the welding procedure of tractor idle pulley built-up welding flux cored wire according to claim 5, it is characterised in that：In built-up welding
Before should remove greasy dirt at workpiece built-up welding.
7. the welding procedure of tractor idle pulley built-up welding flux cored wire according to claim 5, it is characterised in that：Before built-up welding
Welding wire should be bakeed.
8. the welding procedure of tractor idle pulley built-up welding flux cored wire according to claim 5, it is characterised in that：During built-up welding
Voltage be 34~46V, weldering speed is 350~450mm/min.
9. the welding procedure of tractor idle pulley built-up welding flux cored wire according to claim 5, it is characterised in that：For Φ
3.2mm welding wire, electric current is 300~330A during built-up welding.
10. the welding procedure of tractor idle pulley built-up welding flux cored wire according to claim 5, it is characterised in that：For
Φ 4mm welding wire, electric current is 330~450A during built-up welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710714779.7A CN107335943B (en) | 2017-08-19 | 2017-08-19 | Tubular welding wire for tractor idler build-up welding and welding process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710714779.7A CN107335943B (en) | 2017-08-19 | 2017-08-19 | Tubular welding wire for tractor idler build-up welding and welding process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107335943A true CN107335943A (en) | 2017-11-10 |
| CN107335943B CN107335943B (en) | 2019-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710714779.7A Active CN107335943B (en) | 2017-08-19 | 2017-08-19 | Tubular welding wire for tractor idler build-up welding and welding process thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01148491A (en) * | 1987-12-01 | 1989-06-09 | Kubota Ltd | Composite overlay welding material for continuous casting machine member |
| CN102400083A (en) * | 2011-11-16 | 2012-04-04 | 燕山大学 | Chromium carbide ceramic thermal-spraying flux-cored wire |
| CN106956066A (en) * | 2017-03-31 | 2017-07-18 | 安徽再制造工程设计中心有限公司 | The built-up welding of tractor idle pulley, flux cored wire used for submerged arc welding and its application method |
-
2017
- 2017-08-19 CN CN201710714779.7A patent/CN107335943B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01148491A (en) * | 1987-12-01 | 1989-06-09 | Kubota Ltd | Composite overlay welding material for continuous casting machine member |
| CN102400083A (en) * | 2011-11-16 | 2012-04-04 | 燕山大学 | Chromium carbide ceramic thermal-spraying flux-cored wire |
| CN106956066A (en) * | 2017-03-31 | 2017-07-18 | 安徽再制造工程设计中心有限公司 | The built-up welding of tractor idle pulley, flux cored wire used for submerged arc welding and its application method |
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| Publication number | Publication date |
|---|---|
| CN107335943B (en) | 2019-12-31 |
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