CN101985751A - Motor mandrel surface strengthening layer compound technology - Google Patents
Motor mandrel surface strengthening layer compound technology Download PDFInfo
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- CN101985751A CN101985751A CN 201010582875 CN201010582875A CN101985751A CN 101985751 A CN101985751 A CN 101985751A CN 201010582875 CN201010582875 CN 201010582875 CN 201010582875 A CN201010582875 A CN 201010582875A CN 101985751 A CN101985751 A CN 101985751A
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- electric motor
- motor mandrel
- working face
- stainless steel
- mandrel
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Abstract
The invention provides a motor mandrel surface strengthening layer compound technology which is characterized by comprising the following steps: cleaning oil stains and impurities on the working surface of a motor mandrel; heating the working surface of the motor mandrel to 40-100 DEG C; performing pneumatic conveying on stainless steel powder to the working surface of the motor mandrel; and irradiating the stainless steel powder on the working surface of the motor mandrel by laser to lead the stainless steel powder to be molten and covered on the working surface of the motor mandrel so as to form a stainless steel strengthening layer with the thickness of 1-4mm. The technology in the invention can compound a high wear-resistant and corrosion-resistant strengthening layer on the working surface of the motor mandrel, reduce the rejection rate of spare parts, save the production cost, lead the compounded motor mandrel to have longer service life and more balanced operation performance, prevent the problems of bounce, napped bearing working surface and the like in use resulted from corrosion and abrasion of the working surface of the motor mandrel, and be suitable for processing new motor mandrels and repairing scrapped motor mandrels.
Description
Technical field
The present invention relates to a kind of recombining process, especially a kind of electric motor mandrel surface strengthen layer recombining process.
Background technology
The electric motor mandrel is the chief component of motor rotor, it also is the main load bearing component in the electric motor, siliconized plate and coil winding as the electric motor core component are fixed on the mandrel, siliconized plate and coil winding are under the effect of electromagnetic field, drive the mandrel high speed rotating, the bearing that the bearings mounted working face in mandrel two ends is fixed on the motor field frame supports, therefore, be subjected to long-term friction and temperatures involved, this working face is very easy to be worn and corrode.The bearing working face at mandrel two ends is worn and corrodes the back diameter and diminishes, become big with the gap of bearing, diameter run-out appears during running, and make whole electric motor send huge noise, not only influence operating environment, also reduce output rating, the serious bearing position working face plucking that causes, even the bearing locking phenomenon appears, electric motor is scrapped.In case mandrel wear and eroding to a certain degree will be carried out break-down maintenance, and mandrel is scrapped replacing, increase the cost depletions in the daily production of enterprise.
If can be on common mandrel surface, particularly bearings mounted working face carries out repair process, will realize the utilization again of waste and old mandrel, reduces enterprise's spare parts loss, makes energy-saving and cost-reducing production of vast motor applications enterprise's realization.
Summary of the invention
The object of the present invention is to provide a kind of electric motor mandrel surface strengthen layer recombining process,, improve the wear resisting property and the corrosion resistance of this working face, prolong electric motor mandrel work-ing life to strengthen electric motor mandrel working face.
The present invention is to provide a kind of like this electric motor mandrel surface strengthen layer recombining process, it is characterized in that through following process steps:
A, clean greasy dirt, the impurity of electric motor mandrel working face routinely;
B, will be heated to 40～100 ℃ through the electric motor mandrel working face of A step process;
C, be that 100～300 purpose Stainless Steel Powder purity are that 99.99% argon gas is delivered on the electric motor mandrel working face of B step with granularity;
D, be under 400～700mm/min in electric motor mandrel rotational line speed, with power is 3.5KW, bandwidth is the Stainless Steel Powder on the electric motor mandrel working face of laser radiation C step of 3mm, make the Stainless Steel Powder cladding on electric motor mandrel working face, and form the stainless steel reinforcement that thickness is 1～4mm;
E, routinely the electric motor mandrel working face of D step is carried out conventional mechanical processing, make electric motor mandrel working face satisfy size and roughness requirement, promptly get the electric motor mandrel that surface recombination has strengthening layer.
It is that technical grade alcohol and acetone are watered in electric motor mandrel working face that the routine of described A step is cleaned, to remove greasy dirt and impurity.
The heating of described B step is to adopt conventional blowtorch, gas furnace that electric motor mandrel working face is heated.
Described C step is to adopt conventional pneumatic powder conveyer, is that 99.99% argon gas is delivered on the electric motor mandrel working face of B step with Stainless Steel Powder purity.
The Stainless Steel Powder of described C step is one or more in austenite stainless comminuted steel shot, Martensite Stainless Steel powder, the two-phase stainless comminuted steel shot.
The laser radiation of described D step adopts laser irradiating device of the prior art to finish.
The present invention has the following advantages and effect:
1, the bulk material of electric motor mandrel is constant, only carry out the compound or reparation of strengthening layer in frayed and corrosive position of bearings, under the prerequisite that does not increase more production costs, realized the compound or reparation of strengthening layer of electric motor mandrel working face, the utmost point reduces the spare part cost and the loss of enterprise in the work-ing life that has prolonged the electric motor mandrel.
2, adopt laser melting and coating technique, because energy density is concentrated, the power of 3.5KW is acted directly in the hot spot scope of 3mm diameter, make stainless steel powder instant melting and realize metallurgical binding with the electric motor mandrel, has very high interface bond strength, under the chilling action of electric motor mandrel body, make the solidified structure densification tiny simultaneously.
3, since on the electric motor mandrel working face that with modified medium carbon steel is body compound austenitic stainless steel or Martensite Stainless Steel or duplex stainless steel strengthening layer, make that electric motor mandrel working face has better, higher wear-resisting and erosion resistance, can effectively avoid the interaction of corroding and wearing and tearing, reduce the abrasion loss of material, prolong the work-ing life of electric motor mandrel to a greater extent.
The present invention has not only realized compound high abrasion, high erosion-resisting strengthening layer on electric motor mandrel working face, reduce the condemnation factor of spare part, save production cost, and can make compound electric motor mandrel have longer work-ing life and equilibrated operating performance more, avoided electric motor mandrel working face because of use problems such as beating of causing of burn into wearing and tearing and bearing pluckings, the present invention both had been applicable to the electric motor mandrel that processing is new, also was applicable to repair the electric motor mandrel of scrapping.Its technology is simple, and controllable parameters is strong, has both kept the bulk strength of mandrel, partial resistance to abrasion and erosion resistance are arranged again, make mandrel can not cause scrapping prematurely replacing, can effectively reduce the electric motor running noises, the output rating of stable electrical motivation because of concentrated wear and corrosion.
Description of drawings
Fig. 1 is the surface strengthening electric motor mandrel sectional view with recombining process processing of the present invention;
Fig. 2 is an I portion enlarged view among Fig. 1.
Among the figure, 1 is the electric motor mandrel, and 2 is the stainless steel cladding strengthening layer on the working face of electric motor mandrel two ends.
Embodiment
The invention will be further described below in conjunction with embodiment, but protection domain of the present invention is not limited thereto.
Electric motor mandrel surface strengthen layer recombining process process following process steps provided by the invention:
A, routinely technical grade alcohol and acetone are watered successively in the working face at the electric motor mandrel two ends that are body with middle carbon quenched and tempered steel, with greasy dirt, the impurity that cleans this working face;
B, use conventional blowtorch, will be heated to 40 ℃ through the electric motor mandrel working face of A step process;
C, adopting conventional pneumatic powder conveyer, is that 100 purpose austenite stainless comminuted steel shot purity are that 99.99% argon gas is delivered on the electric motor mandrel working face of B step with granularity;
D, be under the 400mm/min in electric motor mandrel rotational line speed, use the conventional laser irradiation apparatus, at power is 3.5KW, bandwidth is in the hot spot scope of 3mm diameter, austenite stainless comminuted steel shot on the electric motor mandrel working face of laser radiation C step, make the cladding of austenite stainless comminuted steel shot on electric motor mandrel working face, and form the stainless steel reinforcement that thickness is 1mm;
E, routinely the electric motor mandrel working face of D step is carried out conventional mechanical processing, make electric motor mandrel working face satisfy size and roughness requirement, promptly get the electric motor mandrel that surface recombination has strengthening layer.
Electric motor mandrel surface strengthen layer recombining process process following process steps provided by the invention:
A, routinely technical grade alcohol and acetone are watered successively in the working face at the electric motor mandrel two ends that are body with middle carbon quenched and tempered steel, with greasy dirt, the impurity that cleans this working face;
B, use conventional blowtorch, will be heated to 100 ℃ through the electric motor mandrel working face of A step process;
C, adopting conventional pneumatic powder conveyer, is that 300 purpose Martensite Stainless Steel powder purity are that 99.99% argon gas is delivered on the electric motor mandrel working face of B step with granularity;
D, be under the 700mm/min in electric motor mandrel rotational line speed, use the conventional laser irradiation apparatus, at power is 3.5KW, bandwidth is in the hot spot scope of 3mm diameter, Martensite Stainless Steel powder on the electric motor mandrel working face of laser radiation C step, make the cladding of Martensite Stainless Steel powder on electric motor mandrel working face, and form the stainless steel reinforcement that thickness is 4mm;
E, routinely the electric motor mandrel working face of D step is carried out conventional mechanical processing, make electric motor mandrel working face satisfy size and roughness requirement, promptly get the electric motor mandrel that surface recombination has strengthening layer.
Embodiment 3
Electric motor mandrel surface strengthen layer recombining process process following process steps provided by the invention:
A, routinely technical grade alcohol and acetone are watered successively in the working face at the electric motor mandrel two ends that are body with middle carbon quenched and tempered steel, with greasy dirt, the impurity that cleans this working face;
B, use conventional gas furnace, will be heated to 70 ℃ through the electric motor mandrel working face of A step process;
C, adopting conventional pneumatic powder conveyer, is that 200 purpose two-phase stainless comminuted steel shot purity are that 99.99% argon gas is delivered on the electric motor mandrel working face of B step with granularity;
D, be under the 500mm/min in electric motor mandrel rotational line speed, use the conventional laser irradiation apparatus, at power is 3.5KW, bandwidth is in the hot spot scope of 3mm diameter, two-phase stainless comminuted steel shot on the electric motor mandrel working face of laser radiation C step, make the cladding of two-phase stainless comminuted steel shot on electric motor mandrel working face, and form the stainless steel reinforcement that thickness is 2mm;
E, routinely the electric motor mandrel working face of D step is carried out conventional mechanical processing, make electric motor mandrel working face satisfy size and roughness requirement, promptly get the electric motor mandrel that surface recombination has strengthening layer.
Claims (5)
1. electric motor mandrel surface strengthen layer recombining process is characterized in that through following process steps:
A, clean greasy dirt, the impurity of electric motor mandrel working face routinely;
B, will be heated to 40～100 ℃ through the electric motor mandrel working face of A step process;
C, be that 100～300 purpose Stainless Steel Powder purity are that 99.99% argon gas is delivered on the electric motor mandrel working face of B step with granularity;
D, be under 400～700mm/min in electric motor mandrel rotational line speed, with power is 3.5KW, bandwidth is the Stainless Steel Powder on the electric motor mandrel working face of laser radiation C step of 3mm, make the Stainless Steel Powder cladding on electric motor mandrel working face, and form the stainless steel reinforcement that thickness is 1～4mm;
E, routinely the electric motor mandrel working face of D step is carried out conventional mechanical processing, make electric motor mandrel working face satisfy size and roughness requirement, promptly get the electric motor mandrel that surface recombination has strengthening layer.
2. electric motor mandrel surface strengthen layer recombining process as claimed in claim 1 is characterized in that the routine cleaning of described A step is that technical grade alcohol and acetone are watered in electric motor mandrel working face, to remove greasy dirt and impurity.
3. electric motor mandrel surface strengthen layer recombining process as claimed in claim 1, the heating that it is characterized in that described B step are to adopt conventional blowtorch, gas furnace that electric motor mandrel working face is heated.
4. electric motor mandrel surface strengthen layer recombining process as claimed in claim 1 is characterized in that described C step is to adopt conventional pneumatic powder conveyer, is that 99.99% argon gas is delivered on the electric motor mandrel working face of B step with Stainless Steel Powder purity.
5. electric motor mandrel surface strengthen layer recombining process as claimed in claim 1, the Stainless Steel Powder that it is characterized in that described C step is one or more in austenite stainless comminuted steel shot, Martensite Stainless Steel powder, the two-phase stainless comminuted steel shot.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010582875 CN101985751B (en) | 2010-12-10 | 2010-12-10 | Motor mandrel surface strengthening layer compound technology |
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| CN 201010582875 CN101985751B (en) | 2010-12-10 | 2010-12-10 | Motor mandrel surface strengthening layer compound technology |
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| CN101985751A true CN101985751A (en) | 2011-03-16 |
| CN101985751B CN101985751B (en) | 2012-05-23 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107119272A (en) * | 2017-07-05 | 2017-09-01 | 上海临仕激光科技有限公司 | A kind of method that port machine walks to take turns laser melting coating stainless steel coating |
| CN110629220A (en) * | 2019-10-18 | 2019-12-31 | 北京工业大学 | Titanium carbide/duplex stainless steel composite powder and preparation method of cladding layer thereof |
| CN111074266A (en) * | 2019-12-21 | 2020-04-28 | 国营芜湖机械厂 | Rapid forming and repairing method for damage of airplane electromagnetic pure iron part accessory |
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| CN1629352A (en) * | 2004-06-30 | 2005-06-22 | 中国科学院金属研究所 | Magnesium alloy laser surface reinforced repairing method |
| JP2006150424A (en) * | 2004-11-30 | 2006-06-15 | Toshiba Corp | Equipment for sample extraction from and base metal repair of apparatus as object for evaluation and method therefor |
| CN101109083A (en) * | 2007-08-20 | 2008-01-23 | 沈阳大陆激光成套设备有限公司 | Laser cladding repair technique for engine crankshaft |
| CN101117978A (en) * | 2007-09-04 | 2008-02-06 | 广州市锐优表面科技有限公司 | Axle sleeve and bush for zinc plating pot roller and its making method |
| CN101532141A (en) * | 2009-04-14 | 2009-09-16 | 山东大学 | Method for in situ producing aluminide reinforced layer on surface of aluminum alloy |
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2010
- 2010-12-10 CN CN 201010582875 patent/CN101985751B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1629352A (en) * | 2004-06-30 | 2005-06-22 | 中国科学院金属研究所 | Magnesium alloy laser surface reinforced repairing method |
| JP2006150424A (en) * | 2004-11-30 | 2006-06-15 | Toshiba Corp | Equipment for sample extraction from and base metal repair of apparatus as object for evaluation and method therefor |
| CN101109083A (en) * | 2007-08-20 | 2008-01-23 | 沈阳大陆激光成套设备有限公司 | Laser cladding repair technique for engine crankshaft |
| CN101117978A (en) * | 2007-09-04 | 2008-02-06 | 广州市锐优表面科技有限公司 | Axle sleeve and bush for zinc plating pot roller and its making method |
| CN101532141A (en) * | 2009-04-14 | 2009-09-16 | 山东大学 | Method for in situ producing aluminide reinforced layer on surface of aluminum alloy |
Non-Patent Citations (1)
| Title |
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| 《中国有色冶金》 20051031 刘朝云 激光熔铸技术对电机转子轴的修复 第81-82页 1-5 , 第5期 2 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107119272A (en) * | 2017-07-05 | 2017-09-01 | 上海临仕激光科技有限公司 | A kind of method that port machine walks to take turns laser melting coating stainless steel coating |
| CN107119272B (en) * | 2017-07-05 | 2019-11-19 | 上海临仕激光科技有限公司 | A kind of method that port machine walks to take turns laser melting coating stainless steel coating |
| CN110629220A (en) * | 2019-10-18 | 2019-12-31 | 北京工业大学 | Titanium carbide/duplex stainless steel composite powder and preparation method of cladding layer thereof |
| CN111074266A (en) * | 2019-12-21 | 2020-04-28 | 国营芜湖机械厂 | Rapid forming and repairing method for damage of airplane electromagnetic pure iron part accessory |
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| CN101985751B (en) | 2012-05-23 |
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