CN101295894A - Magnetic slot wedge and production method thereof - Google Patents
Magnetic slot wedge and production method thereof Download PDFInfo
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- CN101295894A CN101295894A CNA2008100624616A CN200810062461A CN101295894A CN 101295894 A CN101295894 A CN 101295894A CN A2008100624616 A CNA2008100624616 A CN A2008100624616A CN 200810062461 A CN200810062461 A CN 200810062461A CN 101295894 A CN101295894 A CN 101295894A
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- slot wedge
- alkali
- magnetic
- unsaturated polyester
- free glass
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Abstract
The invention discloses a magnetic slot wedge and a production method thereof, wherein the magnetic slot wedge comprises 943 unsaturated polyester resin 18-20%, internal mold release agent 0.5-1%, tert-butyl peroxybenzoate 0.2-0.5%, dibenzoyl peroxide 0.1-0.3%, magnetism-increasing material 54-57% and alkali-free glass fiber 24-25%. The production method comprises 1, preparing unsaturated polyester resin, internal mold release agent and peroxide initiator into adhesive; 2. heating the mold to 150-200 deg.c and drawing at 0.8-1.40 r/min; 3. pultrusion molding the alkali-free glass fiber impregnated with the adhesive through a mold; 4. cooling and cutting; 5. grinding the cut slot wedge; 6. painting the surface of the slot wedge to make the slot wedge smooth and burr-free; 7. and airing, detecting and packaging. The magnetic slot wedge has high magnetic permeability, high splitting strength, high bending strength and simple production method.
Description
Technical field
The present invention relates to a kind of magnetic slot-seal and production method thereof, this magnetic slot-seal is mainly used in big-and-middle-sized ac high-voltage motor stator iron core.
Background technology
Big-and-middle-sized ac high-voltage motor is owing to the requirement of insulation and manufacturing process, and stator winding adopts formed coil, and the iron core of stator is made open slot.Because the opening of groove can cause the aggravation of teeth groove magnetic resistance change rate, the air gap flux density skewness has increased the air-gap permeance slot ripples, thereby causes the motor exciting curent to increase, and rotor surface loss and pulsation loss increase, and causes electric machine temperature rise to increase decrease in efficiency.In big-and-middle-sized ac high-voltage motor, adopt common slot wedge to address the above problem.Must adopt magnetic slot-seal at the stator openings groove, to alleviate groove to the influence that air-gap field distributes, make that the close distribution of magnetic is tending towards evenly in the air gap, the open slot motor just can obtain the such electromagnetic property of semi-open slot or semi-enclosed slot.Magnetic slot-seal permeability of the prior art is lower, and does not have enough mechanical strengths, can't satisfy the requirement of long-term use.
Summary of the invention
Technical problem to be solved by this invention is to overcome the deficiencies in the prior art and a kind of permeability height, split resistance height, magnetic slot-seal and production method thereof that bending strength is big are provided.
The technical scheme that the present invention solves the problems of the technologies described above employing is this magnetic slot-seal, its characteristics are: comprise 943 unsaturated polyester resins, inner pattern releasing agent applicable, peroxidized t-butyl perbenzoate, dibenzoyl peroxide, increase magnetic material and alkali-free glass fibre, the said components percentage by weight is 943 unsaturated polyester resin 18%-20%, inner pattern releasing agent applicable 0.5%-1%, peroxidized t-butyl perbenzoate 0.2%-0.5%, dibenzoyl peroxide 0.1%-0.3%, increases magnetic material 54%-57%, alkali-free glass fibre 24%-25%.
The magnetic material that increases of the present invention is a reduced iron powder.
Each composition weight percentage of the present invention is 943 unsaturated polyester resins 18.3%, inner pattern releasing agent applicable 0.51%, peroxidized t-butyl perbenzoate 0.28%, dibenzoyl peroxide 0.16%, reduced iron powder 56.53%, alkali-free glass fibre 24.22%.
The production method of magnetic slot-seal of the present invention, its characteristics are: may further comprise the steps, (1) is mixed with adhesive to unsaturated polyester resin, inner pattern releasing agent applicable, peroxide initiator in proportion; (2) heating mould is warming up to 150 ℃-200 ℃, pulling speed 0.8-1.40r/min; (3) alkali-free glass fibre of dipping adhesive is passed through the mould pultrusion; (4) cooling, cutting; (5) slot wedge to well cutting carries out bistrique; (6) slot wedge surface paint is handled, made it bright and clean no burr; (7) dry, detect, pack.
The present invention compared with prior art has the following advantages: described magnetic slot-seal adopts reduced iron powder to do magnetic material, adopts the pulling moulding process; So permeability height.The mechanical strength of resin that described magnetic slot-seal adopts is higher, temperature, two kinds of initators of high temperature in the process using, and two stage solidification, so intensity is good.Relative permeability under the magnetic field intensity 1000Oe is more than or equal to 3.2, and more than or equal to 800MPa, the bending strength under the normality is more than or equal to 200MPa for split resistance (N/10mm is long).Can effectively reduce the motor iron loss, improve electric efficiency, reduce electric machine temperature rise.Its production method is simple, can reach the high strength high permeability, is convenient to execute-in-place control again.
Embodiment
Magnetic slot-seal of the present invention adopts a pulling moulding process, mends saturated polyester resin with the alkali-free glass fibre dipping, forms through the baking of pultrusion mould, be to have high magnetic conductivity, heat cured product, can be used for effectively to reduce motor noise in the above high-voltage motor of 6KV, improve the motor effect.
Embodiment one:
Each weight percentages of components is: 943 unsaturated polyester resins 18%, inner pattern releasing agent applicable (JL-125) 0.5%, peroxidized t-butyl perbenzoate 0.2%, dibenzoyl peroxide 0.3%, reduced iron powder 57%, alkali-free glass fibre 24%.
Production method is: (1) is mixed with adhesive to above-mentioned 943 unsaturated polyester resins, inner pattern releasing agent applicable (JL-125), peroxidized t-butyl perbenzoate, dibenzoyl peroxide in proportion; (2) heating mould is warming up to 150 ℃-200 ℃, pulling speed 0.8-1.40r/min; (3) alkali-free glass fibre of dipping adhesive is passed through the mould pultrusion, check thickness, the width of moulding slot wedge with dial caliper, making thickness is that 2-6mm (can according to the customer requirements adjustment), width are 4.5-28mm (can according to the customer requirements adjustment), record on the record of production; (4) cooled slot wedge is carried out cutting process by gauge size; (5) slot wedge to well cutting carries out bistrique; (6) slot wedge surface paint is handled, made it bright and clean no burr; (7) slot wedge that paints is dried processing, finished product is detected, detect qualified packing and dispatch from the factory.
Embodiment two
Each weight percentages of components is: 943 unsaturated polyester resins 20%, inner pattern releasing agent applicable (JL-125) 1%, peroxidized t-butyl perbenzoate 0.5%, dibenzoyl peroxide 0.1%, reduced iron powder 54%, alkali-free glass fibre 24.4%.
Production method is: (1) is mixed with adhesive to above-mentioned 943 unsaturated polyester resins, inner pattern releasing agent applicable (JL-125), peroxidized t-butyl perbenzoate, dibenzoyl peroxide in proportion; (2) heating mould is warming up to 150 ℃-200 ℃, pulling speed 0.8-1.40r/min; (3) alkali-free glass fibre of dipping adhesive is passed through the mould pultrusion, check thickness, the width of moulding slot wedge with dial caliper, making thickness is that 2-6mm (can according to the customer requirements adjustment), width are 4.5-28mm (can according to the customer requirements adjustment), record on the record of production; (4) cooled slot wedge is carried out cutting process by gauge size; (5) slot wedge to well cutting carries out bistrique; (6) slot wedge surface paint is handled, made it bright and clean no burr; (7) slot wedge that paints is dried processing, finished product is detected, detect qualified packing and dispatch from the factory.
Embodiment three
Each weight percentages of components is: 943 unsaturated polyester resins 19.4%, inner pattern releasing agent applicable (JL-125) 1%, peroxidized t-butyl perbenzoate 0.5%, dibenzoyl peroxide 0.1%, reduced iron powder 54%, alkali-free glass fibre 25%.
Production method is: (1) is mixed with adhesive to above-mentioned 943 unsaturated polyester resins, inner pattern releasing agent applicable (JL-125), peroxidized t-butyl perbenzoate, dibenzoyl peroxide in proportion; (2) heating mould is warming up to 150 ℃-200 ℃, pulling speed 0.8-1.40r/min (what unit); (3) alkali-free glass fibre of dipping adhesive is passed through the mould pultrusion, check thickness, the width of moulding slot wedge with dial caliper, making thickness is that 2-6mm (can according to the customer requirements adjustment), width are 4.5-28mm (can according to the customer requirements adjustment), record on the record of production; (4) cooled slot wedge is carried out cutting process by gauge size; (5) slot wedge to well cutting carries out bistrique; (6) slot wedge surface paint is handled, made it bright and clean no burr; (7) slot wedge that paints is dried processing, finished product is detected, detect qualified packing and dispatch from the factory.
Embodiment four
Each weight percentages of components is: 943 unsaturated polyester resins 18.3%, inner pattern releasing agent applicable (JL-125) 0.51%, peroxidized t-butyl perbenzoate 0.28%, dibenzoyl peroxide 0.16%, reduced iron powder 56.53%, alkali-free glass fibre 24.22%.
Production method is: (1) is mixed with adhesive to above-mentioned 943 unsaturated polyester resins, inner pattern releasing agent applicable (JL-125), peroxidized t-butyl perbenzoate, dibenzoyl peroxide in proportion; (2) heating mould is warming up to 150 ℃-200 ℃, pulling speed 0.8-1.40r/min; (3) alkali-free glass fibre of dipping adhesive is passed through the mould pultrusion, check thickness, the width of moulding slot wedge with dial caliper, making thickness is that 2-6mm (can according to the customer requirements adjustment), width are 4.5-28mm (can according to the customer requirements adjustment), record on the record of production; (4) cooled slot wedge is carried out cutting process by gauge size; (5) slot wedge to well cutting carries out bistrique; (6) slot wedge surface paint is handled, made it bright and clean no burr; (7) slot wedge that paints is dried processing, finished product is detected, detect qualified packing and dispatch from the factory.
Inner pattern releasing agent applicable described in the present invention (JL-125) is that Nanjing gold fine jade chemical materials Co., Ltd produces, and the kinds of goods model is JL-125.
The every performance test results of magnetic slot-seal of the present invention sees the following form:
Claims (4)
1, a kind of magnetic slot-seal, it is characterized in that: comprise 943 unsaturated polyester resins, inner pattern releasing agent applicable, peroxidized t-butyl perbenzoate, dibenzoyl peroxide, increase magnetic material and alkali-free glass fibre, the said components percentage by weight is 943 unsaturated polyester resin 18%-20%, inner pattern releasing agent applicable 0.5%-1%, peroxidized t-butyl perbenzoate 0.2%-0.5%, dibenzoyl peroxide 0.1%-0.3%, increases magnetic material 54%-57%, alkali-free glass fibre 24%-25%.
2, magnetic slot-seal according to claim 1 is characterized in that: the described magnetic material that increases is a reduced iron powder.
3, magnetic slot-seal according to claim 1 and 2 is characterized in that: described each composition weight percentage is 943 unsaturated polyester resins 18.3%, inner pattern releasing agent applicable 0.51%, peroxidized t-butyl perbenzoate 0.28%, dibenzoyl peroxide 0.16%, reduced iron powder 56.53%, alkali-free glass fibre 24.22%.
4, the production method of magnetic slot-seal according to claim 1 is characterized in that: may further comprise the steps, (1) is mixed with adhesive to unsaturated polyester resin, inner pattern releasing agent applicable, peroxide initiator in proportion; (2) heating mould is warming up to 150 ℃-200 ℃, pulling speed 0.8-1.40r/min; (3) alkali-free glass fibre of dipping adhesive is passed through the mould pultrusion; (4) cooling, cutting; (5) slot wedge to well cutting carries out bistrique; (6) slot wedge surface paint is handled, made it bright and clean no burr; (7) dry, detect, pack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100624616A CN101295894B (en) | 2008-06-11 | 2008-06-11 | Magnetic slot wedge and production method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100624616A CN101295894B (en) | 2008-06-11 | 2008-06-11 | Magnetic slot wedge and production method thereof |
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| Publication Number | Publication Date |
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| CN101295894A true CN101295894A (en) | 2008-10-29 |
| CN101295894B CN101295894B (en) | 2010-12-29 |
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| CN2008100624616A Active CN101295894B (en) | 2008-06-11 | 2008-06-11 | Magnetic slot wedge and production method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102255442A (en) * | 2011-07-18 | 2011-11-23 | 上海动能重工制造有限公司 | Magnetic slot wedge and preparation process and application thereof |
| CN102290901A (en) * | 2011-08-22 | 2011-12-21 | 海宁永大电气新材料有限公司 | Composite slot wedge used for motor rotor and manufacturing method thereof |
| CN104059359A (en) * | 2014-06-24 | 2014-09-24 | 衡阳恒缘电工材料有限公司 | High-heat-resistant high-strength crosswise slot wedge and preparation method thereof |
| CN106230148A (en) * | 2016-09-29 | 2016-12-14 | 黑龙江八农垦大学 | A kind of Submersible Motor Stator being provided with external recessing and preparation method thereof |
| CN112908600A (en) * | 2021-02-20 | 2021-06-04 | 浙江博菲电气股份有限公司 | High-strength drawing magnetic slot wedge and manufacturing method thereof |
-
2008
- 2008-06-11 CN CN2008100624616A patent/CN101295894B/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102255442A (en) * | 2011-07-18 | 2011-11-23 | 上海动能重工制造有限公司 | Magnetic slot wedge and preparation process and application thereof |
| CN102290901A (en) * | 2011-08-22 | 2011-12-21 | 海宁永大电气新材料有限公司 | Composite slot wedge used for motor rotor and manufacturing method thereof |
| CN102290901B (en) * | 2011-08-22 | 2013-09-04 | 海宁永大电气新材料有限公司 | Composite slot wedge used for motor rotor and manufacturing method thereof |
| CN104059359A (en) * | 2014-06-24 | 2014-09-24 | 衡阳恒缘电工材料有限公司 | High-heat-resistant high-strength crosswise slot wedge and preparation method thereof |
| CN106230148A (en) * | 2016-09-29 | 2016-12-14 | 黑龙江八农垦大学 | A kind of Submersible Motor Stator being provided with external recessing and preparation method thereof |
| CN106230148B (en) * | 2016-09-29 | 2019-10-01 | 黑龙江八一农垦大学 | A kind of Submersible Motor Stator and preparation method thereof equipped with external recessing |
| CN112908600A (en) * | 2021-02-20 | 2021-06-04 | 浙江博菲电气股份有限公司 | High-strength drawing magnetic slot wedge and manufacturing method thereof |
| CN112908600B (en) * | 2021-02-20 | 2024-04-05 | 浙江博菲电气股份有限公司 | High-strength drawing magnetic slot wedge and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101295894B (en) | 2010-12-29 |
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Denomination of invention: Magnetic wedge and production method thereof Effective date of registration: 20161228 Granted publication date: 20101229 Pledgee: Industrial Commercial Bank of China Ltd Haining branch Pledgor: Jiaxing Xindalu Machinery & Electronic Co., Ltd. Registration number: 2016990001178 |
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Date of cancellation: 20181218 Granted publication date: 20101229 Pledgee: Industrial Commercial Bank of China Ltd Haining branch Pledgor: Jiaxing Xindalu Machinery & Electronic Co., Ltd. Registration number: 2016990001178 |
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Address after: 314011 Jiaxing New Continental Machinery and Electricity Co., Ltd., Sanjiancun, Wangdian Town, Xiuzhou District, Jiaxing City, Zhejiang Province Patentee after: Zhejiang Bo Fei electric Limited by Share Ltd Address before: 314011 Jiaxing New Continental Machinery and Electricity Co., Ltd., Sanjiancun, Wangdian Town, Xiuzhou District, Jiaxing City, Zhejiang Province Patentee before: Jiaxing Xindalu Machinery & Electronic Co., Ltd. |