CN100400218C - Wearable tubular welding rod made from tungsten carbide - Google Patents
Wearable tubular welding rod made from tungsten carbide Download PDFInfo
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- CN100400218C CN100400218C CNB2004100129502A CN200410012950A CN100400218C CN 100400218 C CN100400218 C CN 100400218C CN B2004100129502 A CNB2004100129502 A CN B2004100129502A CN 200410012950 A CN200410012950 A CN 200410012950A CN 100400218 C CN100400218 C CN 100400218C
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Abstract
The present invention relates to a wearable tubular tungsten carbide welding rod which is mainly used for reinforcing the tooth surface and the palm tip of a steel-tooth roller bit and can also be used for reinforcing the surfaces of other steel pieces. The present invention comprises a welding pipe and a filler material, wherein the filler material comprises cemented tungsten carbide particles, casting tungsten carbide particles, alloy powder and organic binding agents, which have content parts by weight of 60 to 95% of the cemented tungsten carbide particles, 0 to 35% of the casting tungsten carbide particles, 2 to 6% of the alloy powder and 0.5 to 2% of the organic resins. The present invention is characterized in that the component content of the alloy powder comprises 7 to 40% of Cr, 4 to 14% of Si, 2.5 to 9% of B, 0 to 15% of Mn and the surplus quantity of Ni according to weight percentages. After adopting the alloy system formula, the present invention can effectively reduce the melting points of binding metal in the process of build-up welding, and accordingly, the burning loss of wearable particles is reduced and the integral abrasive resistance of a wearable surfacing welding layer is effectively improved.
Description
Technical field
The present invention relates to a kind of hardfacing materials, be mainly used in the tooth-face strengthening of steel tooth bit, and the reinforcement of the shirttail of rock bit, also can be used for the surface peening of other steel part.
Background technology
In the prior art, the high-abrasive material that is used for the built-up welding of the steel tooth bit flank of tooth mainly contains two big classes: a class is the wearing composite material of ferrous alloy and carbine abrasion-proof particle; Another kind of is the wearing composite material of nickel-base alloy and carbine abrasion-proof particle.These wearing composite materials are made flux-cored electrode tubular electrode usually, so that use.Practice shows that the former is very serious to the scaling loss of abrasion resistant particles in weld deposit process, greatly reduces the wearability of abrasion resistant particles, and the fusing point of analyzing its reason and may mainly be ferrous alloy is higher.Anti-wear performance difference between the latter's binding metal (nickel-base alloy) and the abrasion resistant particles is bigger, and under the working condition of reality, this binding metal wears no resistance and easily is worn, thereby causes abrasion resistant particles to lose supporting and come off.
Summary of the invention
Technical problem to be solved by this invention is the problem at above-mentioned prior art existence, alloy system prescription in the pipe welding rod has been carried out optimal design, reduce the fusing point of alloy system in the welding rod, improve the adhesion between binding metal and the abrasion resistant particles, the wear-resisting tubular tungsten carbide welding rod of a kind of Fe-Ni-Cr--silicon-boron based alloy is provided.
The present invention is achieved by following technical proposals: include welded tube and filler, described filler comprises cemented tungsten carbide particles, casting carbon tungsten carbide particle, alloyed powder and organic binder bond, each components contents is by weight: cemented tungsten carbide particles 60～95%, casting carbon tungsten carbide particle 0～35%, alloyed powder 2～6%, organic resin 0.5～2%, its difference is that the component content of described alloyed powder is by weight percentage: Cr 7～40%, Si 4～14%, B 2.5～9%, Mn 0～15%, the Ni surplus.
Press such scheme, can add rare earth element in above-mentioned alloyed powder, the content that adds rare earth element is 0.5～2.5% by weight.
Press such scheme, described welded tube is formed by cold-rolled low carbon steel roll coil of strip system, or is formed by nickel alloy strip or cobalt alloy roll coil of strip system, and the THICKNESS CONTROL of welded tube pipe skin is at 0.1～0.5mm.
Press such scheme, the granularity of described cemented tungsten carbide particles is 16～40 orders, and the granularity of casting carbon tungsten carbide particle is 40～80 orders.The percentage that the tungsten carbide filler rod filler of making accounts for welding rod weight is 60～80%, and the percentage that welded tube accounts for welding rod weight is 20～40%.
Cemented tungsten carbide particles in the filler of the present invention and casting carbon tungsten carbide particle can be sphere or elliposoidal; Metal adhesive in the cemented tungsten carbide particles can be cobalt powder, nickel powder or iron powder, wherein makes binding agent and spheric granules best results with cobalt powder.
Beneficial effect of the present invention is to have reduced the fusing point of binding metal by improving the alloy system prescription of welding rod, has improved the weldability of welding rod simultaneously, thereby has reduced the scaling loss of abrasion resistant particles in the welding rod, and the anti-wear performance of abrasion resistant particles is maintained; And adding along with alloying elements such as nickel, chromium, silicon, boron, strengthened the deoxidation effect of welding rod in weld deposit process, improved the wetability between binding metal and abrasion resistant particles and the metallic matrix, thereby improved the adhesion between binding metal and the abrasion resistant particles, strengthened the confining force of abrasion resistant particles in overlay cladding, the overall wear resistance of wearable overlay is effectively improved.
The specific embodiment
Be described in further detail embodiments of the invention below.
Embodiment 1: the filler of tubular tungsten carbide welding rod is by weight by 16～40 order cemented tungsten carbide particles 60～95%, 40～80 order casting carbon tungsten carbide particles 0～35%, alloyed powder mixture 4～6%, organic resin 1～2% is formed, wherein component and the content of each alloyed powder in whole alloyed powder is by weight: chromium Cr:6～9%, silicon Si:3～5%, boron: 7～10%, nickel: surplus.The percentage by weight of the shared flux-cored electrode tubular electrode of filler is 63%; With above-mentioned filler mixing stirring, rolling together and draw and dial moulding with cold-rolled low carbon steel band or nickel alloy strip or cobalt alloy band again.The damp sand wear test is the result show, the wearability of this tubular tungsten carbide welding rod overlay cladding is compared with domestic and international existing similar welding rod and improved more than 30%.
Embodiment 2: the filler of tubular tungsten carbide welding rod is by weight by 16～40 order cemented tungsten carbide particles 60～95%, 40～80 order casting carbon tungsten carbide particles 0～35%, alloyed powder mixture 2～4%, organic resin 0.5～2% is formed, component and the content of each alloyed powder in whole alloyed powder is by weight: chromium Cr:10～12%, silicon Si:12～14%, boron: 2～3%, manganese Mn:13～15%, nickel: surplus.The percentage by weight of the shared flux-cored electrode tubular electrode of filler is 65%.The damp sand wear test is the result show, the wearability of this tubular tungsten carbide welding rod overlay cladding is compared with domestic and international existing similar welding rod and improved more than 40%.
Embodiment 3: the filler of tubular tungsten carbide welding rod is by weight by 16～40 order cemented tungsten carbide particles 60～95%, 40～80 order casting carbon tungsten carbide particles 0～35%, alloyed powder mixture 2～4%, organic resin 0.5～2% is formed, component and the content of each alloyed powder in whole alloyed powder is by weight: chromium Cr:10～12%, silicon Si:12～14%, boron: 2～3%, manganese Mn:13～15%, cerium oxide Ce
2O
3: 1～2%, nickel: surplus.The percentage by weight of the shared flux-cored electrode tubular electrode of filler is 65%.The damp sand wear test is the result show, the wearability of this tubular tungsten carbide welding rod is compared with domestic and international existing similar welding rod and improved more than 40%.
Claims (7)
1. wear-resisting tubular tungsten carbide welding rod, include welded tube and filler, described filler comprises cemented tungsten carbide particles, casting carbon tungsten carbide particle, alloyed powder and organic binder bond, each components contents is by weight: cemented tungsten carbide particles 60～95%, casting carbon tungsten carbide particle 0～35%, alloyed powder 2～6%, organic resin 0.5～2%, the component content that it is characterized in that described alloyed powder is by weight percentage: Cr 7～40%, Si 4～14%, B 2.5～9%, and Mn 0～15%, the Ni surplus.
2. by the described wear-resisting tubular tungsten carbide welding rod of claim 1, it is characterized in that adding rare earth element in the described alloyed powder, the content that adds rare earth element is 0.5～2.5% by weight.
3. by claim 1 or 2 described wear-resisting tubular tungsten carbide welding rods, it is characterized in that described welded tube is formed by cold-rolled low carbon steel roll coil of strip system, or form that the THICKNESS CONTROL of welded tube pipe skin is at 0.1～0.5mm by nickel alloy strip or cobalt alloy roll coil of strip system.
4. by claim 1 or 2 described wear-resisting tubular tungsten carbide welding rods, the granularity that it is characterized in that described cemented tungsten carbide particles is 16～40 orders, and the granularity of casting carbon tungsten carbide particle is 40～80 orders.
5. by claim 1 or 2 described wear-resisting tubular tungsten carbide welding rods, it is characterized in that the percentage that the tungsten carbide filler rod filler of making accounts for welding rod weight is 60～80%, the percentage that welded tube accounts for welding rod weight is 20～40%.
6. by claim 1 or 2 described wear-resisting tubular tungsten carbide welding rods, it is characterized in that cemented tungsten carbide particles and casting carbon tungsten carbide particle are sphere or elliposoidal in the filler.
7. by the described wear-resisting tubular tungsten carbide welding rod of claim 6, it is characterized in that the metal adhesive in the cemented tungsten carbide particles is cobalt powder, nickel powder or iron powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100129502A CN100400218C (en) | 2004-03-31 | 2004-03-31 | Wearable tubular welding rod made from tungsten carbide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100129502A CN100400218C (en) | 2004-03-31 | 2004-03-31 | Wearable tubular welding rod made from tungsten carbide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1562550A CN1562550A (en) | 2005-01-12 |
| CN100400218C true CN100400218C (en) | 2008-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100129502A Expired - Fee Related CN100400218C (en) | 2004-03-31 | 2004-03-31 | Wearable tubular welding rod made from tungsten carbide |
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| CN (1) | CN100400218C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011124542A3 (en) * | 2010-04-08 | 2013-01-10 | H.C. Starck Gmbh | Dispersion, method for producing same, and use thereof |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7703555B2 (en) | 2005-09-09 | 2010-04-27 | Baker Hughes Incorporated | Drilling tools having hardfacing with nickel-based matrix materials and hard particles |
| US7597159B2 (en) | 2005-09-09 | 2009-10-06 | Baker Hughes Incorporated | Drill bits and drilling tools including abrasive wear-resistant materials |
| US7997359B2 (en) | 2005-09-09 | 2011-08-16 | Baker Hughes Incorporated | Abrasive wear-resistant hardfacing materials, drill bits and drilling tools including abrasive wear-resistant hardfacing materials |
| CN100548565C (en) * | 2007-11-26 | 2009-10-14 | 苏州新锐硬质合金有限公司 | A kind of tubular hard surface overlaying material |
| CN101380698B (en) * | 2008-10-09 | 2011-08-10 | 苏州新锐硬质合金有限公司 | Novel tubular hard surfacing material |
| WO2013063766A1 (en) * | 2011-11-01 | 2013-05-10 | 江汉石油钻头股份有限公司 | Tube welding rod resistant to low stress abrasion |
| US9199338B2 (en) | 2011-11-02 | 2015-12-01 | Kingdream Public Limited Company | Tube welding rod resistant to high stress abrasion |
| CN104646849A (en) * | 2015-01-04 | 2015-05-27 | 苏州新锐合金工具股份有限公司 | Tungsten carbide tubular welding rod for hard-surface overlay welding |
| US9869132B2 (en) | 2015-02-04 | 2018-01-16 | National Oilwell Varco, L.P. | Wellsite hardfacing with particle distribution and method of using same |
| US9909395B2 (en) | 2015-09-21 | 2018-03-06 | National Oilwell DHT, L.P. | Wellsite hardfacing with distributed hard phase and method of using same |
| CN109434116B (en) * | 2018-11-07 | 2021-02-02 | 中国石油化工集团有限公司 | PTA surfacing material for drilling tool and preparation method thereof |
| CN110000487A (en) * | 2019-04-18 | 2019-07-12 | 郑州机械研究所有限公司 | A kind of enhanced tubulose medicine core carbine abrasion-proof welding rod of matrix |
| CN110666389B (en) * | 2019-10-18 | 2021-07-02 | 郑州机械研究所有限公司 | Fiber-toughened tungsten carbide welding rod |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09136187A (en) * | 1995-09-04 | 1997-05-27 | Nikko Youzai Kogyo Kk | Alloy for build-up welding and welding method using above |
| CN1210051A (en) * | 1997-09-01 | 1999-03-10 | 姚光华 | Corrosionproof heatproof wearproof alloy weld rod |
| CN1375377A (en) * | 2002-04-23 | 2002-10-23 | 江汉石油钻头股份有限公司 | Wear-resistant tungsten carbide bead-welding material and welding rod |
| CN1404956A (en) * | 2002-11-04 | 2003-03-26 | 江汉石油钻头股份有限公司 | Tube-like tungsten carbonate welding bar |
-
2004
- 2004-03-31 CN CNB2004100129502A patent/CN100400218C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09136187A (en) * | 1995-09-04 | 1997-05-27 | Nikko Youzai Kogyo Kk | Alloy for build-up welding and welding method using above |
| CN1210051A (en) * | 1997-09-01 | 1999-03-10 | 姚光华 | Corrosionproof heatproof wearproof alloy weld rod |
| CN1375377A (en) * | 2002-04-23 | 2002-10-23 | 江汉石油钻头股份有限公司 | Wear-resistant tungsten carbide bead-welding material and welding rod |
| CN1404956A (en) * | 2002-11-04 | 2003-03-26 | 江汉石油钻头股份有限公司 | Tube-like tungsten carbonate welding bar |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011124542A3 (en) * | 2010-04-08 | 2013-01-10 | H.C. Starck Gmbh | Dispersion, method for producing same, and use thereof |
| JP2013529136A (en) * | 2010-04-08 | 2013-07-18 | ハー．ツェー．スタルク ゲゼルシャフト ミット ベシュレンクテル ハフツング | Dispersion, process for its production and use thereof |
| US8815983B2 (en) | 2010-04-08 | 2014-08-26 | H. C. Starck Gmbh | Dispersion, method for producing same, and use thereof |
| EP2566638B1 (en) | 2010-04-08 | 2015-09-02 | H.C. Starck GmbH | Dispersions comprisng cast tungsten carbide particles coated with tungsten carbide, method for producing same, and use thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1562550A (en) | 2005-01-12 |
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Granted publication date: 20080709 Termination date: 20140331 |