CN102371444A - Core powder for large-diameter tubular high-ferrochrome surfacing welding electrode - Google Patents
Core powder for large-diameter tubular high-ferrochrome surfacing welding electrode Download PDFInfo
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- CN102371444A CN102371444A CN2010102657927A CN201010265792A CN102371444A CN 102371444 A CN102371444 A CN 102371444A CN 2010102657927 A CN2010102657927 A CN 2010102657927A CN 201010265792 A CN201010265792 A CN 201010265792A CN 102371444 A CN102371444 A CN 102371444A
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Abstract
The invention relates to core powder for a large-diameter tubular high-ferrochrome surfacing welding electrode. The core powder comprises the following components by weight percent: 70-85% of high-carbon ferrochrome powder, 0-30% of casting tungsten carbide grains, 2-6% of alloy powder, 0.5-2% of organic resin and 4-6% of binder. A preparation method of the core powder for the large-diameter tubular high-ferrochrome surfacing welding electrode provided by the invention is simple and low in cost; the production efficiency is high; the components of the core powder are uniform; with the help of the binder, the core powder is difficult to fall off during a welding process; and a melting speed of the core powder is promoted and the normal proceeding of welding construction is effectively ensured.
Description
Technical field
The present invention relates to welding field, relate to the core powder of the high ferrochrome type of a kind of large diameter tubular surfacing welding.
Background technology
Instrument and machine parts are made of metal basically.In use, handling process, instrument, machine are prone to wear and tear, and cause numerous instruments, machinery to be scrapped because of wearing and tearing, need instrument, machinery to have good abrasion resistance.Built-up welding be with electric welding or autogenous soldering the metal molten of welding rod, pile up on the surface of instrument or machine parts, because of technology simply is widely used.
The tubulose surfacing welding is a kind of of surfacing welding steel pipe; What generally use at present is tungsten carbide tubulose surfacing welding; Disclosed like CN1053134C " hardfacing flux-cored electrode tubular electrode ", CN1244431C " a kind of tubular tungsten carbide welding rod ", CN1562550A " a kind of wear-resisting tubular tungsten carbide welding rod "; The tubulose surfacing welding is made up of with the steel pipe of containing year core powder the core powder of inside; The core powder comprises cast tungsten carbide, cemented tungsten carbide, alloy powder and organic resin binding agent, and wherein, organic binder resin is generally sodium metasilicate.Wherein the large diameter tubular surfacing welding is particularly suitable for large tracts of land, big thickness built-up welding, is applicable to the built-up welding of industry engineering machinery wear-out parts such as metallurgy, mine.But because the steel pipe inner core powder of the high ferrochrome type of large diameter tubular surfacing welding is a lot, in welding process, the easy landing of core powder influences welding procedure, and welding can not normally be carried out.Therefore, need the prescription of core powder be improved, to solve the problem of the core powder landing that exists in the work progress.
Summary of the invention
The object of the present invention is to provide the core powder of the high ferrochrome type of a kind of novel large diameter tubular surfacing welding, in welding process, the core powder is difficult for landing.
The core powder of the high ferrochrome type of large diameter tubular of the present invention surfacing welding contains 70～85% (weight) high-carbon chromium iron; 0～30% (weight) casting carbon tungsten carbide particle; 2～6% (weight) alloy powder, 0.5～2% (weight) organic resin, 4～6% (weight) binding agent.
According to a preferred embodiment of the invention, said binding agent is organic.
According to a preferred embodiment of the invention, said binding agent is starch, sodium carboxymethylcellulose, cyclodextrin or yellow starch gum.
According to a preferred embodiment of the invention, said alloy powder contains 6～40% (weight) chromium, 3～14% (weight) silicon, and 2～7% (weight) boron, 0～15% (weight) manganese, surplus is a nickel.
The core powder, preparation method thereof of the high ferrochrome type of large diameter tubular of the present invention surfacing welding is simple, cost is low; Production efficiency is high, and the core meal component is even, and the use of binding agent makes the core powder in welding process, be difficult for landing; And can accelerate the burn-off rate of core powder, effectively ensure normally carrying out of welding procedure.
The specific embodiment
Below in conjunction with specific embodiment, the present invention is further specified.Should be understood that following examples only are used to the present invention is described but not are used to limit scope of the present invention.
The inventor finds in welding procedure, although adopt the organic resin sodium silicate binder bonding in the existing core powder, for the high ferrochrome type of large diameter tubular surfacing welding; Steel pipe inner core powder is more; In welding process, the easy landing of core powder influences welding procedure.The inventor is through extensive and deep research; Discovery is added the organic matter of easy coking as binding agent in the core powder; The coking of binding agent can make the component of core powder bond together effectively, and can accelerate the burn-off rate of core powder, can effectively prevent the landing at welding process SMIS powder.
In the present invention, said binding agent is starch, sodium carboxymethylcellulose, cyclodextrin or yellow starch gum.
In context of the present invention, said filling rate is meant the ratio of quality and the core powder and the tube quality sum of core powder.
Embodiment 1
Selecting diameter is the steel pipe of 16mm, adopts bench vice that one end of steel pipe is flattened.The other end through steel pipe adds the core powder, and the core powder contains 65% (weight) 16～40 order high-carbon chromium irons, 25% (weight) 40～60 order casting carbon tungsten carbide particles; 5% (weight) alloy powder, 2% (weight) organic resin, 3% (weight) starch; Wherein, the composition of alloy powder is 6～10% (weight) chromium, 3～7% (weight) silicon; 2～4% (weight) boron, 8～12% (weight) manganese, surplus is a nickel.Said components is inserted steel pipe after mixing stirring, the filling rate of core powder is 80%, fills up to compress and seals.
Embodiment 2
Selecting diameter is the steel pipe of 12mm, adopts bench vice that one end of steel pipe is flattened.The other end through steel pipe adds the core powder, and the core powder contains 60% (weight) 16～40 order high-carbon chromium irons, 30% (weight) 40～80 order casting carbon tungsten carbide particles; 6% (weight) alloy powder, 1% (weight) organic resin, 3% (weight) starch; Wherein, the composition of alloy powder is 9～35% (weight) chromium, 4～10% (weight) silicon; 3～6% (weight) boron, 0～10% (weight) manganese, surplus is a nickel.Said components is inserted steel pipe after mixing stirring, the filling rate of core powder fills up to compress and seals for being 45%.
Embodiment 3
Selecting diameter is the steel pipe of 15mm, adopts punch press that one end of steel pipe is flattened.The other end through steel pipe adds the core powder, and the core powder contains 89.5% (weight) 16～40 order high-carbon chromium irons, 2% (weight) alloy powder; 0.5% (weight) organic resin, 8% (weight) starch, wherein; The composition of alloy powder is 20～40% (weight) chromium, 4～14% (weight) silicon, 4～7% (weight) boron; 0～9% (weight) manganese, surplus is a nickel.Said components is inserted steel pipe after mixing stirring, the filling rate of core powder is 53%, fills up to compress and seals.
Embodiment 4
Selecting diameter is the steel pipe of 13mm, adopts forcing press that one end of steel pipe is flattened.The other end through steel pipe adds the core powder, and the core powder contains 75% (weight) 16～40 order high-carbon chromium irons, 14% (weight) 60～100 order casting carbon tungsten carbide particles; 4.5% (weight) alloy powder, 1.5% (weight) organic resin, 5% (weight) sodium carboxymethylcellulose; Wherein, the composition of alloy powder is 9～15% (weight) chromium, 2～6% (weight) silicon; 3～4% (weight) boron, 9～15% (weight) manganese, surplus is a nickel.Said components is inserted steel pipe after mixing stirring, the filling rate of core powder fills up to compress and seals for being 65%.
Embodiment 5
Selecting diameter is the steel pipe of 14mm, adopts bench vice that one end of steel pipe is flattened.The other end through steel pipe adds the core powder, and the core powder contains 75% (weight) 16～40 order high-carbon chromium irons, 10% (weight) 40～80 order casting carbon tungsten carbide particles; 5% (weight) alloy powder, 2% (weight) organic resin, 8% (weight) cyclodextrin; Wherein, the composition of alloy powder is 6～10% (weight) chromium, 3～7% (weight) silicon; 2～4% (weight) boron, 8～12% (weight) manganese, surplus is a nickel.Said components is inserted steel pipe after mixing stirring, the filling rate of core powder fills up to compress and seals for being 60%.
Embodiment 6
Selecting diameter is the steel pipe of 20mm, adopts bench vice that one end of steel pipe is flattened.The other end through steel pipe adds the core powder, and the core powder contains 75% (weight) 16～40 order high-carbon chromium irons, 10% (weight) 40～80 order casting carbon tungsten carbide particles; 5% (weight) alloy powder, 2% (weight) organic resin, 8% (weight) yellow starch gum; Wherein, the composition of alloy powder is 6～10% (weight) chromium, 3～7% (weight) silicon; 2～4% (weight) boron, surplus is a nickel.Said components is inserted steel pipe after mixing stirring, the percentage by weight of the shared flux-cored electrode tubular electrode of core powder is 60%, fills up to compress and seals.
The core powder, preparation method thereof of the high ferrochrome type of large diameter tubular of the present invention surfacing welding is simple, cost is low; Production efficiency is high; Be easy to produce, the core meal component is even, and the use of binding agent makes the core powder in welding process, be difficult for landing; And can accelerate the burn-off rate of core powder, effectively ensure normally carrying out of welding procedure.
Claims (4)
1. the core powder of the high ferrochrome type of a large diameter tubular surfacing welding is characterized in that, said core powder contains 70～85% (weight) high-carbon chromium iron; 0～30% (weight) casting carbon tungsten carbide particle; 2～6% (weight) alloy powder, 0.5～2% (weight) organic resin, 4～6% (weight) binding agent.
2. the core powder of the high ferrochrome type of large diameter tubular as claimed in claim 1 surfacing welding is characterized in that, said binding agent is organic.
3. the core powder of the high ferrochrome type of large diameter tubular as claimed in claim 2 surfacing welding is characterized in that said binding agent is starch, sodium carboxymethylcellulose, cyclodextrin or yellow starch gum.
4. the core powder of the high ferrochrome type of large diameter tubular as claimed in claim 1 surfacing welding is characterized in that said alloy powder contains 6～40% (weight) chromium, 3～14% (weight) silicon, and 2～7% (weight) boron, 0～15% (weight) manganese, surplus is a nickel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102657927A CN102371444A (en) | 2010-08-26 | 2010-08-26 | Core powder for large-diameter tubular high-ferrochrome surfacing welding electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102657927A CN102371444A (en) | 2010-08-26 | 2010-08-26 | Core powder for large-diameter tubular high-ferrochrome surfacing welding electrode |
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| Publication Number | Publication Date |
|---|---|
| CN102371444A true CN102371444A (en) | 2012-03-14 |
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| CN2010102657927A Pending CN102371444A (en) | 2010-08-26 | 2010-08-26 | Core powder for large-diameter tubular high-ferrochrome surfacing welding electrode |
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| CN103920965A (en) * | 2013-01-16 | 2014-07-16 | 霍伯特兄弟公司 | Systems And Methods For Welding Electrodes |
| CN103920964A (en) * | 2013-01-16 | 2014-07-16 | 霍伯特兄弟公司 | Systems And Methods For Welding Electrodes |
| CN105612024A (en) * | 2013-10-09 | 2016-05-25 | 霍伯特兄弟公司 | Systems and methods for corrosion-resistant welding electrodes |
| US9999944B2 (en) | 2012-08-28 | 2018-06-19 | Hobart Brothers Company | Systems and methods for welding electrodes |
| US10016850B2 (en) | 2012-08-28 | 2018-07-10 | Hobart Brothers Company | Systems and methods for welding electrodes |
| US10112268B2 (en) | 2013-10-09 | 2018-10-30 | Hobart Brothers Company | Systems and methods for corrosion-resistant welding electrodes |
| US10300565B2 (en) | 2014-10-17 | 2019-05-28 | Hobart Brothers Company | Systems and methods for welding mill scaled workpieces |
| 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 |
| US10543556B2 (en) | 2012-08-28 | 2020-01-28 | Hobart Brothers Llc | Systems and methods for welding zinc-coated workpieces |
| CN111468859A (en) * | 2020-05-29 | 2020-07-31 | 自贡长城硬面材料有限公司 | Hard alloy wear-resistant flexible welding rope for steel body drill bit surfacing and preparation method thereof |
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2010
- 2010-08-26 CN CN2010102657927A patent/CN102371444A/en active Pending
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10543556B2 (en) | 2012-08-28 | 2020-01-28 | Hobart Brothers Llc | Systems and methods for welding zinc-coated workpieces |
| US11697171B2 (en) | 2012-08-28 | 2023-07-11 | Hobart Brothers Llc | Systems and methods for welding zinc-coated workpieces |
| US9999944B2 (en) | 2012-08-28 | 2018-06-19 | Hobart Brothers Company | Systems and methods for welding electrodes |
| US10016850B2 (en) | 2012-08-28 | 2018-07-10 | Hobart Brothers Company | Systems and methods for welding electrodes |
| US11633814B2 (en) | 2012-08-28 | 2023-04-25 | Hobart Brothers Llc | Systems and methods for welding electrodes |
| CN103920964A (en) * | 2013-01-16 | 2014-07-16 | 霍伯特兄弟公司 | Systems And Methods For Welding Electrodes |
| CN114012302A (en) * | 2013-01-16 | 2022-02-08 | 霍伯特兄弟有限责任公司 | System and method for welding electrodes |
| CN103920965A (en) * | 2013-01-16 | 2014-07-16 | 霍伯特兄弟公司 | Systems And Methods For Welding Electrodes |
| CN103920965B (en) * | 2013-01-16 | 2020-11-06 | 霍伯特兄弟公司 | System and method for welding electrodes |
| US11052493B2 (en) | 2013-10-09 | 2021-07-06 | Hobart Brothers Llc | Systems and methods for corrosion-resistant welding electrodes |
| CN105612024B (en) * | 2013-10-09 | 2019-04-19 | 霍伯特兄弟公司 | System and method for anticorrosion welding rod |
| US10112268B2 (en) | 2013-10-09 | 2018-10-30 | Hobart Brothers Company | Systems and methods for corrosion-resistant welding electrodes |
| CN105612024A (en) * | 2013-10-09 | 2016-05-25 | 霍伯特兄弟公司 | Systems and methods for corrosion-resistant welding electrodes |
| US10300565B2 (en) | 2014-10-17 | 2019-05-28 | Hobart Brothers Company | Systems and methods for welding mill scaled workpieces |
| US11426825B2 (en) | 2014-10-17 | 2022-08-30 | Hobart Brothers Llc | Systems and methods for welding mill scaled workpieces |
| 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 |
| CN111468859A (en) * | 2020-05-29 | 2020-07-31 | 自贡长城硬面材料有限公司 | Hard alloy wear-resistant flexible welding rope for steel body drill bit surfacing and preparation method thereof |
| CN111468859B (en) * | 2020-05-29 | 2022-04-15 | 自贡长城表面工程技术有限公司 | Hard alloy wear-resistant flexible welding rope for steel body drill bit surfacing and preparation method thereof |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20120314 |