CN101985751B - Motor mandrel surface strengthening layer compound technology - Google Patents
Motor mandrel surface strengthening layer compound technology Download PDFInfo
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- CN101985751B CN101985751B CN 201010582875 CN201010582875A CN101985751B CN 101985751 B CN101985751 B CN 101985751B CN 201010582875 CN201010582875 CN 201010582875 CN 201010582875 A CN201010582875 A CN 201010582875A CN 101985751 B CN101985751 B CN 101985751B
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- phonomoter
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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 phonomoter mandrel surface strengthen layer recombining process.
Background technology
The phonomoter mandrel is the chief component of motor rotor, also is the main load bearing component in the phonomoter, is fixed on the mandrel as the siliconized plate and the coil winding of phonomoter core component; Siliconized plate and coil winding are under the effect of EM field; Drive the mandrel high speed rotating, the bearings mounted workplace in mandrel two ends is fixed in the bearing supporting on the motor field frame, therefore; Receive long-term friction and temperatures involved, this workplace 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, and is big with the gap change of bearing, occurs diameter run-out during running; And make whole phonomoter send huge noise; Not only influence operating environment, also reduce output rating, the serious bearing position workplace plucking that causes; Even the bearing locking phenomenon appears, phonomoter is scrapped.In case mandrel wear with erode to a certain degree, will carry out break-down maintenance, mandrel is scrapped replacing, increase the cost depletions in the daily production of enterprise.
If can be on common mandrel surface, particularly bearings mounted workplace carries out repair process, will realize the utilization again of waste and old mandrel, reduces enterprise's spare parts loss, makes the energy-saving and cost-reducing production of vast motor applications enterprises implement.
Summary of the invention
The object of the present invention is to provide a kind of phonomoter mandrel surface strengthen layer recombining process,, improve the wear resisting property and the corrosion resistance of this workplace, prolong phonomoter mandrel work-ing life to strengthen phonomoter mandrel workplace.
The present invention is to provide a kind of like this phonomoter mandrel surface strengthen layer recombining process, it is characterized in that through following process steps:
A, clean greasy dirt, the impurity of phonomoter mandrel workplace by routine;
B, the phonomoter mandrel workplace that will pass through the A step process are heated to 40～100 ℃;
C, be that to use purity be that 99.99% argon gas is delivered on the phonomoter mandrel workplace of B step to 100～300 purpose Stainless Steel Powders with granularity;
D, be under 400～700mm/min in phonomoter mandrel rotational line speed; Use power to be 3.5KW; Bandwidth is the Stainless Steel Powder on the phonomoter mandrel workplace of laser radiation C step of 3mm; Make the Stainless Steel Powder cladding on phonomoter mandrel workplace, and form the stainless steel reinforcement that thickness is 1～4mm;
E, the phonomoter mandrel workplace of D step is carried out conventional mechanical processing, make phonomoter mandrel workplace satisfy size and roughness requirement, promptly get the phonomoter mandrel that surface recombination has strengthening layer by routine.
It is that technical grade alcohol and acetone are watered in phonomoter mandrel workplace that the routine of said A step is cleaned, to remove greasy dirt and impurity.
The heating of said B step is to adopt conventional blowtorch, gas furnace that phonomoter mandrel workplace is heated.
Said C step is to adopt conventional pneumatic powder conveyer, and it is that 99.99% argon gas is delivered on the phonomoter mandrel workplace of B step that Stainless Steel Powder is used purity.
The Stainless Steel Powder of said 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 said D step is to adopt laser irradiating device of the prior art to accomplish.
The present invention has the following advantages and effect:
1, the bulk material of phonomoter mandrel is constant; Only carry out the compound or reparation of strengthening layer with the corrosive position of bearings frayed; Under the prerequisite that does not increase more production costs; Realized the compound or reparation of strengthening layer of phonomoter mandrel workplace, the utmost point reduces the spare part cost and the loss of enterprise in the work-ing life that has prolonged the phonomoter mandrel.
2, adopt laser melting and coating technique; Because energy density is concentrated; Act directly on the power of 3.5KW in the hot spot scope of 3mm diameter, make stainless steel powder instant melting and realize metallurgical binding, have very high interface bond strength with the phonomoter mandrel; Under the chilling action of phonomoter mandrel body, make the solidified structure densification tiny simultaneously.
3, since on the phonomoter mandrel workplace that with modified medium carbon steel is body compound austenitic stainless steel or Martensite Stainless Steel or duplex stainless steel strengthening layer; Make that phonomoter mandrel workplace 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 phonomoter mandrel to a greater extent.
The present invention has not only realized compound high abrasion, high erosion-resisting strengthening layer on phonomoter mandrel workplace; Reduce the condemnation factor of spare part; Save production cost, and can make compound phonomoter mandrel have longer work-ing life and equilibrated operating performance more, avoided phonomoter mandrel workplace 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 phonomoter mandrel that processing is new, also was applicable to repair the phonomoter mandrel of scrapping.Its technology is simple, and controllable parameters property 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 phonomoter running noises, the output rating of stable electrical motivation because of concentrated wear and corrosion.
Description of drawings
Fig. 1 is the surface strengthening phonomoter 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 phonomoter mandrel, and 2 is the stainless steel cladding strengthening layer on the workplace of phonomoter mandrel two ends.
Embodiment
Below in conjunction with embodiment the present invention is described further, but protection domain of the present invention is not limited thereto.
Embodiment 1
Phonomoter mandrel surface strengthen layer recombining process process following process steps provided by the invention:
A, technical grade alcohol and acetone are watered in the workplace at the phonomoter mandrel two ends that are body with middle carbon quenched and tempered steel, with greasy dirt, the impurity that cleans this workplace successively by routine;
B, use conventional blowtorch, the phonomoter mandrel workplace that will pass through the A step process is heated to 40 ℃;
C, adopting conventional pneumatic powder conveyer, is that to use purity be that 99.99% argon gas is delivered on the phonomoter mandrel workplace of B step to 100 purpose austenite stainless comminuted steel shots with granularity;
D, be under the 400mm/min in phonomoter mandrel rotational line speed; Use the conventional laser irradiation apparatus; At power is 3.5KW, and bandwidth is in the hot spot scope of 3mm diameter, the austenite stainless comminuted steel shot on the phonomoter mandrel workplace of laser radiation C step; Make the cladding of austenite stainless comminuted steel shot on phonomoter mandrel workplace, and form the stainless steel reinforcement that thickness is 1mm;
E, the phonomoter mandrel workplace of D step is carried out conventional mechanical processing, make phonomoter mandrel workplace satisfy size and roughness requirement, promptly get the phonomoter mandrel that surface recombination has strengthening layer by routine.
Phonomoter mandrel surface strengthen layer recombining process process following process steps provided by the invention:
A, technical grade alcohol and acetone are watered in the workplace at the phonomoter mandrel two ends that are body with middle carbon quenched and tempered steel, with greasy dirt, the impurity that cleans this workplace successively by routine;
B, use conventional blowtorch, the phonomoter mandrel workplace that will pass through the A step process is heated to 100 ℃;
C, adopting conventional pneumatic powder conveyer, is that to use purity be that 99.99% argon gas is delivered on the phonomoter mandrel workplace of B step to 300 purpose Martensite Stainless Steel powder with granularity;
D, be under the 700mm/min in phonomoter mandrel rotational line speed; Use the conventional laser irradiation apparatus; At power is 3.5KW, and bandwidth is in the hot spot scope of 3mm diameter, the Martensite Stainless Steel powder on the phonomoter mandrel workplace of laser radiation C step; Make the cladding of Martensite Stainless Steel powder on phonomoter mandrel workplace, and form the stainless steel reinforcement that thickness is 4mm;
E, the phonomoter mandrel workplace of D step is carried out conventional mechanical processing, make phonomoter mandrel workplace satisfy size and roughness requirement, promptly get the phonomoter mandrel that surface recombination has strengthening layer by routine.
Embodiment 3
Phonomoter mandrel surface strengthen layer recombining process process following process steps provided by the invention:
A, technical grade alcohol and acetone are watered in the workplace at the phonomoter mandrel two ends that are body with middle carbon quenched and tempered steel, with greasy dirt, the impurity that cleans this workplace successively by routine;
B, use conventional gas furnace, the phonomoter mandrel workplace that will pass through the A step process is heated to 70 ℃;
C, adopting conventional pneumatic powder conveyer, is that to use purity be that 99.99% argon gas is delivered on the phonomoter mandrel workplace of B step to 200 purpose two-phase stainless comminuted steel shots with granularity;
D, be under the 500mm/min in phonomoter mandrel rotational line speed; Use the conventional laser irradiation apparatus; At power is 3.5KW, and bandwidth is in the hot spot scope of 3mm diameter, the two-phase stainless comminuted steel shot on the phonomoter mandrel workplace of laser radiation C step; Make the cladding of two-phase stainless comminuted steel shot on phonomoter mandrel workplace, and form the stainless steel reinforcement that thickness is 2mm;
E, the phonomoter mandrel workplace of D step is carried out conventional mechanical processing, make phonomoter mandrel workplace satisfy size and roughness requirement, promptly get the phonomoter mandrel that surface recombination has strengthening layer by routine.
Claims (4)
1. phonomoter mandrel surface strengthen layer recombining process is characterized in that through following process steps:
A, clean greasy dirt, the impurity of phonomoter mandrel workplace by routine;
B, the phonomoter mandrel workplace that will pass through the A step process are heated to 40～100 ℃;
C, with granularity be 100～300 purpose Stainless Steel Powders to use purity be that 99.99% argon gas is delivered on the phonomoter mandrel workplace of B step, wherein said Stainless Steel Powder is one or more in austenite stainless comminuted steel shot, Martensite Stainless Steel powder, the two-phase stainless comminuted steel shot;
D, be under 400～700mm/min in phonomoter mandrel rotational line speed; Use power to be 3.5KW; Bandwidth is the Stainless Steel Powder on the phonomoter mandrel workplace of laser radiation C step of 3mm; Make the Stainless Steel Powder cladding on phonomoter mandrel workplace, and form the stainless steel reinforcement that thickness is 1～4mm;
E, the phonomoter mandrel workplace of D step is carried out conventional mechanical processing, make phonomoter mandrel workplace satisfy size and roughness requirement, promptly get the phonomoter mandrel that surface recombination has strengthening layer by routine.
2. phonomoter mandrel surface strengthen layer recombining process as claimed in claim 1 is characterized in that the routine cleaning of said A step is that technical grade alcohol and acetone are watered in phonomoter mandrel workplace, to remove greasy dirt and impurity.
3. phonomoter mandrel surface strengthen layer recombining process as claimed in claim 1, the heating that it is characterized in that said B step are to adopt conventional blowtorch, gas furnace that phonomoter mandrel workplace is heated.
4. phonomoter mandrel surface strengthen layer recombining process as claimed in claim 1 is characterized in that said C step is to adopt conventional pneumatic powder conveyer, and it is that 99.99% argon gas is delivered on the phonomoter mandrel workplace of B step that Stainless Steel Powder is used purity.
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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 CN101985751A (en) | 2011-03-16 |
| CN101985751B true CN101985751B (en) | 2012-05-23 |
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| 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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| CN1298880C (en) * | 2004-06-30 | 2007-02-07 | 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 |
| CN100473856C (en) * | 2007-09-04 | 2009-04-01 | 广州市锐优表面科技有限公司 | Axle sleeve and bush for zinc plating pot roller and making method thereof |
| CN101532141B (en) * | 2009-04-14 | 2010-08-25 | 山东大学 | Method for in situ producing aluminide reinforced layer on surface of aluminum alloy |
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