CN101985730B - Tubular arc spray wire for surface anti-wear treatment of reamer blade of brick press - Google Patents
Tubular arc spray wire for surface anti-wear treatment of reamer blade of brick press Download PDFInfo
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- CN101985730B CN101985730B CN2010105104210A CN201010510421A CN101985730B CN 101985730 B CN101985730 B CN 101985730B CN 2010105104210 A CN2010105104210 A CN 2010105104210A CN 201010510421 A CN201010510421 A CN 201010510421A CN 101985730 B CN101985730 B CN 101985730B
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- reamer blade
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- arc spray
- brick press
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Abstract
The invention discloses a tubular arc spray wire for the surface anti-wear treatment of a reamer blade of a brick press, which is characterized in that: H08 low-carbon steel filled with 25 to 32 percent of flux powder is adopted; and the components of the flux powder is ferroboron and less than 6 weight percent of doping ferrosilicon rare earth alloy. The tubular arc spray wire of the invention can be prepared simply, the obtained arc spray coating has the advantages of high hardness and high wear resistance, the surface Rockwell hardness of the coating is more than or equal to HRC59, and the relative wear resistance of the coating is more than or equal to 5.
Description
Technical field
The invention belongs to the abrasionproof process field on vulnerable part surface, particularly a kind of spraying wire that is used for the processing of brick press reamer blade surface abrasionproof.
Background technology
In order to protect farmland and environment; Reduce the consumption of the energy; China has limited firing and using of solid clay brick; The substitute is with solid waste such as flyash, coal gangue, shale, building wastes as the brickmaking starting material, aggravated the wearing and tearing of mechanized equipment important spare parts such as brick press.
Screw reamer is a vulnerable part in large-scale brick equipment-vacuum-extruder, and the abrasionproof of spiral reamer processing at present mainly is a method of taking monoblock casting reamer blade, or at soft steel blade surface built-up welding rich chromium cast iron or high-chromium alloy.Though these two kinds of methods can improve the wear resistance and the work-ing life of reamer blade, have shortcomings such as cost height, surface abrasion reparation difficulty, reduction forcing machine extrusion efficiency.(application of smart casting high-chromium alloy screw reamer, Zhu Zhongwen. HeFei University of Technology's Materials Academy, 2004 7 phases of brick and tile; The method of use of wear resistance electrode on the brick machine, Liang Riping, Hebei walling scientific and technical information network, 2006 6 phases of the brick and tile world; Hard surfacing electrode, 2008 12 phases of brick and tile)
Electric arc spraying is a kind of more advanced and surperficial cheaply abrasionproof treatment process, and its principle is to utilize electric arc that spraying wire is heated to dissolve or half melting state, forms coating with the certain speed jet deposition to the pretreated matrix surface of process then.The abrasionproof that arc spraying technology is used for the reamer blade surface is handled, and has that surfaceness is little, cost is low, wear surface is prone to repair and the efficient advantages of higher.Can arc spraying be successfully applied to surperficial abrasionproof and handle, and key is whether suitable, high performance spraying wire are arranged.The arc spraying filament material that is used for the abrasionproof processing at present is in the majority with solid silk material; Like martensites such as 1Cr13 series silk material; It is lower to adopt solid silk material to carry out electric arc spraying gained coating hardness, be lower than HRC32, and wear resistance is relatively poor; And the spray material of high firmness, high-wearing feature is difficult to usually roll and pulls out a material, makes it be difficult to be applied to electric arc spraying and prepares wear-resistant coating.
Summary of the invention
To the problem that prior art exists, the present invention is a purpose to improve arc spraying coating hardness and wear resistance, and a kind of tubular arc spraying wire that brick press reamer blade surface abrasionproof is handled that is used for is provided.
The present invention solves this technical problem the technical scheme that is adopted:
Be used for the tubular arc spraying wire that brick press reamer blade surface abrasionproof is handled, be characterized in: employing H08 mild-carbon steel strip interpolation filling ratio is 25～32% medicine core powder; And said medicine core powder composition is the ferroboron and the ferrosilicon rare earth alloy that mixes, and doping ferrosilicon rare earth alloy quality accounts in the whole medicine core powder total mass 6%.
Above-mentioned ferroboron composition quality per-cent is: 80%Fe, 20%B, and above-mentioned ferrosilicon rare earth alloy composition quality per-cent is: 27% rare earth, 36.78%Si, surplus are iron.
Compared with prior art, the present invention has the following advantages and beneficial effect:
1) adopt spraying wire of the present invention to carry out the advantage that gained coating after the electric arc spraying has high firmness, high-wearing feature, coatingsurface Rockwell hardness >=HRC59, relative wear resistance >=5;
2) tubular arc spraying wire preparation of the present invention is simple.
Description of drawings
Fig. 1 is a tubular arc spraying wire making processes synoptic diagram of the present invention;
Fig. 2 is the photo of tubular arc spraying wire of the present invention;
Fig. 3 carries out the microstructure picture of electric arc spraying gained coating for adopting tubular arc spraying wire of the present invention;
Fig. 4 carries out electric arc spraying gained Bond Strength of Coating sample fracture surface picture for adopting embodiment 1 gained tubular arc spraying wire;
Fig. 5 carries out electric arc spraying gained Bond Strength of Coating sample fracture surface picture for adopting embodiment 2 gained tubular arc spraying wires.
Embodiment
To combine accompanying drawing and embodiment that technical scheme of the present invention is described further below.
Embodiment 1
Selecting width for use is that 12mm, thickness are the H08 mild-carbon steel strip of 0.6mm; Through format roll it is bent to U type section; Medicine core powder is filled in the U type groove, filling ratio is 25% again, and the mass percent of medicine core powder composition is 94% ferroboron and 6% ferrosilicon rare earth alloy; Wherein ferroboron composition quality per-cent is: 80%Fe, 20%B, ferrosilicon rare earth alloy composition quality per-cent is: 27% rare earth, 36.78%Si, surplus are iron.Steel band after filling is sealed and compresses through molding roller, and through a series of wire-drawing dies, obtaining diameter is 2.0mm tubulose spraying wire.
Embodiment 2
Selecting width for use is that 12mm, thickness are the H08 mild-carbon steel strip of 0.6mm; Through format roll it is bent to U type section; Medicine core powder is filled in the U type groove, filling ratio is 32% again, and medicine core powder composition is 100% ferroboron; Wherein ferroboron composition quality per-cent is: 80%Fe, 20%B, ferrosilicon rare earth alloy composition quality per-cent is: 27% rare earth, 36.78%Si, surplus are iron.Steel band after filling is sealed and compresses through molding roller, and through a series of wire-drawing dies, obtaining diameter is the tubulose spraying wire of 2.0mm.
With embodiment 1 and 2 gained tubulose spraying wires is spray material; Adopting the supersonic electric arc spraying to establish sprays surface of low-carbon steel; Spraying gained coat-thickness is 0.5mm, and spraying parameter is following: arc voltage 30V, working current 30A; Spray distance 180～220mm, compressed air pressure 0.35～0.4MPa.Coating after the spraying is carried out the anchoring strength of coating test by GB8642-88, and with the hardness of superficial Rockwell hardness tester testing coating, test result is seen table 1.
With the wear resistance of the wheeled wear testing machine testing coating of MLS-23 type damp sand rubber, specimen size is 57 * 26 * 5.5mm, and coat-thickness is 0.8mm; The rubber wheel diameter is 178mm, hardness 1 Shao Er 60 degree, and the load positive pressure is 7kg; Abrasive material is that silica sand (20～40 order) is newly understood in Guangdong, and water sand weight ratio is 1: 1.5, and pre-grinding 1000 is changeed; Formal mill 1000 changes, and test-results is seen table 2.Adopt the wear resistance of the commercially available Q235 steel of test that uses the same method; Itself and tubulose spraying wire abrasion property of the present invention are compared; See table 2, the result shows that the wear resistance of tubulose spraying wire of the present invention is much better than commercially available Q235 steel, and concrete test data is seen shown in the table 2.
Table 1 anchoring strength of coating and Rockwell hardness test result
Table 2 coating abrasion performance test result
Claims (2)
1. be used for the tubular arc spraying wire that brick press reamer blade surface abrasionproof is handled, it is characterized in that: employing H08 mild-carbon steel strip interpolation filling ratio is 25～32% medicine core powder; And said medicine core powder composition is the ferroboron and the ferrosilicon rare earth alloy that mixes, and doping ferrosilicon rare earth alloy quality accounts in the whole medicine core powder total mass 6%.
2. the tubular arc spraying wire that is used for the processing of brick press reamer blade surface abrasionproof according to claim 1; It is characterized in that: said ferroboron composition quality per-cent is: 80%Fe, 20%B, and said ferrosilicon rare earth alloy composition quality per-cent is: 27% rare earth, 36.78%Si, surplus are iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105104210A CN101985730B (en) | 2010-10-15 | 2010-10-15 | Tubular arc spray wire for surface anti-wear treatment of reamer blade of brick press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105104210A CN101985730B (en) | 2010-10-15 | 2010-10-15 | Tubular arc spray wire for surface anti-wear treatment of reamer blade of brick press |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101985730A CN101985730A (en) | 2011-03-16 |
| CN101985730B true CN101985730B (en) | 2012-03-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010105104210A Active CN101985730B (en) | 2010-10-15 | 2010-10-15 | Tubular arc spray wire for surface anti-wear treatment of reamer blade of brick press |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108286030A (en) * | 2018-01-29 | 2018-07-17 | 北京工业大学 | A kind of powder cored filament material containing rare earth and coating production preparing iron-based wear-resistant coating for electric arc spraying |
| CN108165919A (en) * | 2018-01-29 | 2018-06-15 | 北京工业大学 | A kind of method that laser remolten prepares the wear-resisting cladding layers of FeBC |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100360703C (en) * | 2005-12-29 | 2008-01-09 | 西安理工大学 | Process for preparing iron base non crystal state alloy by bar material plasma spraying |
| CN101724805B (en) * | 2008-10-22 | 2011-04-13 | 北京赛亿表面工程技术有限公司 | Nitride-contained hot spraying powder core wire |
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Owner name: CHANGSHU ZIJIN INTELLECTUAL PROPERTY SERVICE CO., Free format text: FORMER OWNER: WUHAN UNIVERSITY Effective date: 20130111 |
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Effective date of registration: 20130111 Address after: 215500 Changshou City South East Economic Development Zone, Jiangsu, Jin Road, No. 8 Patentee after: Changshu Zijin Intellectual Property Service Co., Ltd. Address before: 430072 Hubei city of Wuhan province Wuchang Luo Jia Shan Patentee before: Wuhan University |