CN102071418B - Laser cladding reinforcing process of motor central spindle - Google Patents
Laser cladding reinforcing process of motor central spindle Download PDFInfo
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- CN102071418B CN102071418B CN201010597126.3A CN201010597126A CN102071418B CN 102071418 B CN102071418 B CN 102071418B CN 201010597126 A CN201010597126 A CN 201010597126A CN 102071418 B CN102071418 B CN 102071418B
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- mandrel
- laser cladding
- prime coat
- powder
- bearings
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- 238000004372 laser cladding Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000008569 process Effects 0.000 title claims abstract description 14
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 7
- 239000010410 layer Substances 0.000 claims abstract description 15
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 9
- 239000010935 stainless steel Substances 0.000 claims abstract description 9
- 229910000734 martensite Inorganic materials 0.000 claims abstract description 8
- 238000005516 engineering process Methods 0.000 claims abstract description 7
- 239000002344 surface layer Substances 0.000 claims abstract description 4
- 239000002131 composite material Substances 0.000 claims description 22
- 239000000843 powder Substances 0.000 claims description 21
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 238000002360 preparation method Methods 0.000 claims description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 229910001566 austenite Inorganic materials 0.000 claims description 4
- 210000001161 mammalian embryo Anatomy 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 abstract description 7
- 230000007797 corrosion Effects 0.000 abstract description 7
- 229910000963 austenitic stainless steel Inorganic materials 0.000 abstract description 5
- 230000002787 reinforcement Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000010923 batch production Methods 0.000 abstract 1
- 238000003754 machining Methods 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 229910052799 carbon Inorganic materials 0.000 description 8
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 4
- 230000003628 erosive effect Effects 0.000 description 4
- 230000003245 working effect Effects 0.000 description 4
- 229910052786 argon Inorganic materials 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000000306 component Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 229910000954 Medium-carbon steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Laser Beam Processing (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention discloses a laser cladding reinforcing process of a motor central spindle. In the reinforcing process, a layer of 18-8 type austenitic stainless steel serving as a base coat is cladded by laser cladding technology at the bearing position of the central spindle, and then a layer of 1Cr13 type martensite stainless steel serving as a wear-resistant and corrosion-resistant surface layer is cladded, so that stepped reinforcement is realized, the service life of the motor central spindle is prolonged, operating performance is balanced, and using problems such as corrosion of the central spindle at the bearing position, shaft deviation caused by wear, roughing of a bush and the like are solved. In the process, parameter controllability is high, machining operation is convenient and industrial batch production is convenient.
Description
Technical field
The present invention relates to the electric motor in mechanized equipment field, particularly the local composite reinforcement process of composite reinforced motor mandrel.
Background technology
Composite reinforced 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, band moving mandrel high speed rotating, the position of bearings on mandrel both sides namely is fixed on the bearing shell bearing position on the motor field frame, stand for a long time friction and high temperature, be very easy to cause the abrasion and corrosion of mandrel.Diameter diminishes after mandrel wear and the corrosion, and is large with the gap change of bearing shell, occurs diameter run-out during running, and make whole electric motor send huge noise, and not only affect operating environment, also reduce output rating, the serious bearing shell plucking that causes, even the tile kilning phenomenon appears, electric motor is scrapped.
At present the research of electric motor all concentrated on epitrochanterian silicon steel and coil aspect, in the hope of lifting motor rated output and running efficiency, but to the research of mandrel seldom, therefore never solve the long-term normal operation problem of electric motor under rated output.Composite reinforced motor mandrel commonly used is by the modified thermal treatment manufacturing of medium carbon steel process, although possessing on the whole, bears than fundamental propertys such as high pulling torque, stress in middle carbon quenched and tempered steel, but it resistance to wears, erosion resistance is very poor, be worn, corrode in that the position of bearings of mandrel is the easiest, and make whole mandrel scrap replacing, cause the waste of a large amount of break-down maintenances and spare parts, increase the cost depletions in the daily production of enterprise.If can be on common mandrel surface, particularly intensive treatment be carried out in the position of bearings, can greatly prolong mandrel work-ing life, reduces the electric motor running noises, realizes running steady in a long-term, makes vast motor applications enterprise realize energy-saving and cost-reducing production.
Summary of the invention
The object of the invention is to overcome the deficiency of prior art, a kind of local composite reinforcement process of composite reinforced motor mandrel is provided, this technique is with the position of bearings of laser cladding technology at common middle carbon quenched and tempered steel composite reinforced motor mandrel, compound upper gradient hardened stainless steel, improve local resistance to abrasion and erosion resistance, its manufacturing process is simple, the parameter controllability is strong, the bulk strength that had both kept mandrel, local resistance to abrasion and erosion resistance are arranged again, make mandrel can not cause scrapping prematurely replacing because of concentrated wear and corrosion, be middle more than 2 times of carbon quenched and tempered steel mandrel commonly used work-ing life, can effectively reduce the electric motor running noises, the output rating of stable electrical motivation.This technique does not need integral replacing mandrel material, has very high cost performance, is fit to large-scale industrialization production yet.
The laser cladding reinforcing process of composite reinforced motor mandrel of the present invention is characterized in that, generates gradient in the position of bearings of mandrel with the laser cladding technology and strengthens composite bed, and its preparation section is as follows::
A, the good composite reinforced motor mandrel embryo spare of clamping (1), rotary clamp;
B, water industrial spirit in the position of bearings of mandrel and tentatively clean, water again acetone and finally clean;
C, unlatching Pneumatic powders conveyer, pneumatic transport prime coat powder is to the position of bearings of mandrel;
D, in the position of bearings of mandrel with laser cladding one deck prime coat (2);
E, pneumatic transport upper layer powder are to prime coat;
F, on prime coat, with laser cladding layer of surface layer (3);
G, mechanical workout knockout shaft size and roughness.
Above said composite reinforced motor mandrel anchor clamps rotational line speed be 600mm/min.
Said prime coat powder is 18-8 type austenite stainless comminuted steel shot, and granularity is 100～300 orders, and the deposited thickness of said prime coat (2) is 1～3mm.
Said upper layer powder is 1Cr13 type Martensite Stainless Steel powder, and granularity is 100～300 orders, and the deposited thickness of said upper layer (3) is 2～4mm.
Said laser cladding power is 3.5KW, bandwidth 3mm.
Be compared with existing technology, the present invention has the following advantages or positively effect:
1, carbon quenched and tempered steel during the composite reinforced motor mandrel body still adopts, guarantee whole mechanical mechanics property, only carry out complex intensifying in the position of bearings that is subject to abrasion and corrosion, under the prerequisite that does not increase a lot of production costs, realized lengthening the life of mandrel, the cost performance of technique and product is high.
2, adopt the laser cladding technology, because energy density is concentrated, the power of 3.5KW is acted directly in the hot spot scope of 3mm diameter, make the powder instant melting and realize metallurgical binding with following metal, has very high interface bond strength, the chilling action of bulk metal below makes the solidified structure densification tiny again.
3, whole laser cladding process all is to operate under purity 99.99% argon shield environment, so can not occur the initial imperfections such as oxidation sludge in the complex intensifying layer tissue, has guaranteed the performance uniformity of complex intensifying layer.
4, on middle carbon quenched and tempered steel, use first laser cladding 18-8 type austenitic stainless steel prime coat, laser cladding 1Cr13 type Martensite Stainless Steel on prime coat again, formed gradient composites, the hardness of prime coat is HRC20～HRC25, and the hardness of upper layer is HRC28～HRC35, has formed preferably hardness transition at the complex intensifying thickness direction, can not occur in the mandrel operation process causing compound interface fatigure failure phenomenon because the sudden change of material hardness produces strain incompatibility.
5, surperficial in the position of bearings of composite reinforced motor mandrel, the compound 1Cr13 type Martensite Stainless Steel of having gone up, the high rigidity that not only has HRC28～HRC35, also have than the much higher erosion resistance of middle carbon quenched and tempered steel, therefore in the mandrel operation process, be not easy frayed and corrosion, greatly prolonged the work-ing life of whole mandrel, be middle more than 2 times of carbon quenched and tempered steel mandrel commonly used work-ing life.
Description of drawings
Fig. 1 is the composite reinforced motor mandrel sectional view of strengthening through laser cladding;
Fig. 2 is I section enlarged view among Fig. 1;
Fig. 3 is the laser cladding reinforcing process schema of composite reinforced motor mandrel.
Embodiment
Also by reference to the accompanying drawings the present invention is described in further detail below by embodiment, but the invention is not restricted to these embodiment, protection domain is as the criterion with claim.
The 55KW AC electrical machine mandrel of preparation partial gradient complex intensifying, concrete operation is as follows.
A, in the composite reinforced motor mandrel embryo spare (1) made of carbon quenched and tempered steel load onto anchor clamps, with linear velocity 600mm/min rotary clamp;
B, water industrial spirit in the position of bearings of mandrel and tentatively clean, water again acetone and finally clean;
C, unlatching argon gas Pneumatic powders conveyer carry 18-8 type austenitic stainless steel powder to the position of bearings of mandrel;
D, with power 3.5KW, the laser radiation 18-8 type austenite stainless powder of bandwidth 3mm makes its fusing, deposited 2mm thickness prime coat (2);
E, argon gas pneumatic transport 1Cr13 type Martensite Stainless Steel powder are above prime coat;
F, with power 3.5KW, the laser radiation 1Cr13 type austenite of bandwidth 3mm not comminuted steel shot material makes its fusing, deposited 3mm thickness table surface layer (3);
Take off mandrel on G, the anchor clamps, mechanical workout knockout shaft size and roughness.
Preparation hot rolls withdrawal roll oil cylinder cylinder sleeve.
The preparation situation is basically the same with embodiment 1, and just the granularity of employed 18-8 type austenitic stainless steel powder is 200 orders among the operation C, and the thick of prime coat is 1mm; The granularity of employed 1Cr13 type Martensite Stainless Steel powder is 200 orders among the operation E, and the thick of upper layer is 4mm; All the other situations are identical with embodiment 1.
Preparation hot rolls withdrawal roll oil cylinder cylinder sleeve.
The preparation situation is basically the same with embodiment 1, and just the granularity of employed 18-8 type austenitic stainless steel powder is 300 orders among the operation C, and the thick of prime coat is 3mm; The granularity of employed 1Cr13 type Martensite Stainless Steel powder is 300 orders among the operation E, and the thick of upper layer is 2mm; All the other situations are identical with embodiment 1.
Claims (2)
1. the laser cladding reinforcing process of composite reinforced motor mandrel is characterized in that, generates gradient in the position of bearings of mandrel with the laser cladding technology and strengthens composite bed, and its preparation section is as follows:
A, the good composite reinforced motor mandrel embryo spare of clamping (1), rotary clamp;
B, water industrial spirit in the position of bearings of mandrel and tentatively clean, water again acetone and finally clean;
C, unlatching Pneumatic powders conveyer, pneumatic transport prime coat powder is to the position of bearings of mandrel;
D, in the position of bearings of mandrel with laser cladding one deck prime coat (2);
E, pneumatic transport upper layer powder are to prime coat;
F, on prime coat, with laser cladding layer of surface layer (3);
G, mechanical workout knockout shaft size and roughness;
Described prime coat powder is 18-8 type austenite stainless comminuted steel shot, and granularity is 100～300 orders;
Said laser cladding power is 3.5KW, bandwidth 3mm;
Said upper layer powder is 1Cr13 type Martensite Stainless Steel powder, and granularity is 100～300 orders.
2. according to claim 1 technique, it is characterized in that: composite reinforced motor mandrel anchor clamps rotational line speed is 600mm/min, and the deposited thickness of said upper layer (3) is 2～4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010597126.3A CN102071418B (en) | 2010-12-20 | 2010-12-20 | Laser cladding reinforcing process of motor central spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010597126.3A CN102071418B (en) | 2010-12-20 | 2010-12-20 | Laser cladding reinforcing process of motor central spindle |
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| Publication Number | Publication Date |
|---|---|
| CN102071418A CN102071418A (en) | 2011-05-25 |
| CN102071418B true CN102071418B (en) | 2013-01-16 |
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| CN201010597126.3A Expired - Fee Related CN102071418B (en) | 2010-12-20 | 2010-12-20 | Laser cladding reinforcing process of motor central spindle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103484854A (en) * | 2013-09-24 | 2014-01-01 | 山东塔高矿业机械装备制造有限公司 | Technique for fusion covering stainless steel on surface of pin roll |
| CN105154872B (en) * | 2015-09-06 | 2017-11-21 | 中国航空工业集团公司北京航空材料研究院 | A kind of laser manufacturing process that Ni based alloy functionally gradient material (FGM)s are prepared on titanium alloy |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1351919A (en) * | 2001-12-24 | 2002-06-05 | 北京工业大学 | Special equipment and process of laser fusion coating for producing high speed wire rod roller |
| CN101358345A (en) * | 2008-09-10 | 2009-02-04 | 岳阳大陆激光技术有限公司 | Novel technological process of hybrid laser and anti-corrosive wear layer on twin-screw rod component surface of chemical extruder |
| CN101397663A (en) * | 2008-11-11 | 2009-04-01 | 岳阳大陆激光技术有限公司 | Novel repair and reconstruction technique for defect treatment of strip coiler hollow axle |
| CN101665862A (en) * | 2009-10-15 | 2010-03-10 | 武汉华工激光成套设备有限公司 | Surface laser quenching process of car panel die |
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2010
- 2010-12-20 CN CN201010597126.3A patent/CN102071418B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1351919A (en) * | 2001-12-24 | 2002-06-05 | 北京工业大学 | Special equipment and process of laser fusion coating for producing high speed wire rod roller |
| CN101358345A (en) * | 2008-09-10 | 2009-02-04 | 岳阳大陆激光技术有限公司 | Novel technological process of hybrid laser and anti-corrosive wear layer on twin-screw rod component surface of chemical extruder |
| CN101397663A (en) * | 2008-11-11 | 2009-04-01 | 岳阳大陆激光技术有限公司 | Novel repair and reconstruction technique for defect treatment of strip coiler hollow axle |
| CN101665862A (en) * | 2009-10-15 | 2010-03-10 | 武汉华工激光成套设备有限公司 | Surface laser quenching process of car panel die |
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