CN104059359A - High-heat-resistant high-strength crosswise slot wedge and preparation method thereof - Google Patents
High-heat-resistant high-strength crosswise slot wedge and preparation method thereof Download PDFInfo
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- CN104059359A CN104059359A CN201410289245.0A CN201410289245A CN104059359A CN 104059359 A CN104059359 A CN 104059359A CN 201410289245 A CN201410289245 A CN 201410289245A CN 104059359 A CN104059359 A CN 104059359A
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- free glass
- drawing groove
- high heat
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/48—Fastening of windings on the stator or rotor structure in slots
- H02K3/487—Slot-closing devices
- H02K3/493—Slot-closing devices magnetic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention discloses a high-heat-resistant high-strength crosswise slot wedge which is composed of 66-70 wt% of alkali-free glass fiber fabric and alkali-free glass fiber yarn and 30-34 wt% of adhesive. The alkali-free glass fiber fabric is introduced to enhance the transverse mechanical strength of the slot wedge; and the adhesive is improved, so that the slot wedge has excellent performance at high temperature. Especially, the slot wedge still has higher bending strength and cleavage strength at high temperature, respectively reaching 300 MPa and 2500N/10mm above at 155 DEG C. The slot wedge can completely satisfy the operating requirements of the windmill generator.
Description
Technical field
The present invention relates to a kind of high heat-resistant high-strength drawing groove wedge for aerogenerator parts and preparation method thereof, this high heat-resistant high-strength drawing groove wedge by glasscloth and glass fibre yarn gumming stick after pultrusion form, can make drawing groove wedge mechanical property at high temperature greatly improve.
Background technology
Most domestic asynchronous wind driven generator insulation level is more than F level at present, magnetic slot-seal moves under this kind of operating mode, its hot mechanical property significantly declines, easily cause coming off of magnetic slot-seal, electrical machine insulation performance reduces, and does not meet aerogenerator life cycle length, high reliability, performance requriements easy to maintenance.
Chinese invention patent publication number CN101295894A discloses a kind of its production method of magnetic slot-seal level, its normal temperature split resistance 1044N/10mm, 155 ℃ of flexural strength 132.5MPa, 180 ℃ of flexural strength 122.5MPa, normality and hot mechanical property are all difficult to meet the actual requirement of aerogenerator slot wedge.
Summary of the invention
One of technical problem to be solved by this invention is to provide a kind of high heat-resistant high-strength drawing groove wedge for the existing above-mentioned technical problem of existing magnetic slot-seal, and the normality of this high heat-resistant high-strength drawing groove wedge and hot mechanical property can meet aerogenerator performance and want wedge.
Two of technical problem to be solved by this invention is to provide the preparation method of above-mentioned high heat-resistant high-strength drawing groove wedge.
Technical problem to be solved by this invention can be achieved through the following technical solutions:
High heat-resistant high-strength drawing groove wedge, is comprised of alkali-free glass fiber cloth, alkali-free glass fibre yarn and tackiness agent.Wherein the weight percent of alkali-free glass fiber cloth and alkali-free glass fibre yarn summation is 66-70%, and the weight ratio of tackiness agent is 30-34%;
Described tackiness agent is formed by the preparation of raw material of following weight percent part:
In a preferred embodiment of the invention, the combination that described pultrusion initiator is benzoyl peroxide and peroxidized t-butyl perbenzoate.
In a preferred embodiment of the invention, described releasing agent is FZ-801, purchased from Dongguan Fu Zhen Trade Co., Ltd..
In a preferred embodiment of the invention, described filler is CaCO
3, Al (OH)
3or its combination.
In a preferred embodiment of the invention, described coupling agent is KH550, and chemical name is 3-aminopropyl triethoxysilane.
High heat-resistant high-strength drawing groove wedge manufacture method of the present invention is that alkali-free glass fiber cloth and alkali-free glass fibre yarn are arranged in sequence and entered glue groove, after impregnation, through guide plate, lines up regular shape, enters mould, pultrusion; Control temperature for three sections of pulling and be respectively 115 ℃-145 ℃, 155 ℃-180 ℃, 145 ℃-170 ℃, each temperature section is controlled as 0.6-1.2min; Pultrusion rate-controlling is at 200-700mm/min.
The present invention, owing to introducing alkali-free glass fiber cloth, has increased the horizontal physical strength of slot wedge; Improved tackiness agent, made slot wedge at high temperature there is excellent performance.Especially at high temperature keep higher flexural strength and split resistance, reached respectively 300MPa at 155 ℃ and more than 2500N/10mm.Can meet the operating requirement of aerogenerator completely.
Embodiment
Embodiment 1
High heat-resistant high-strength drawing groove wedge, in its finished product, the weight percent of alkali-free glass fiber cloth and alkali-free glass fibre yarn is 69%, cured glue stick weight ratio is 31%.
In alkali-free glass fiber cloth and alkali-free glass fibre yarn, the mass percent of alkali-free glass fiber cloth and alkali-free glass fibre yarn is respectively 33% and 67%.
Tackiness agent is formed by following weight percent preparation of raw material: polyimide modified Vinylite 85%, in pultrusion initiator, benzoyl peroxide and peroxidized t-butyl perbenzoate are respectively 0.5% and 1.1%, releasing agent 1.6%, CaCO in filler
36%, Al (OH)
34%, mill base 1.0%, coupling agent 0.8%.
The alkali-free glass fiber cloth that is 69% by weight percent under normal temperature and alkali-free glass fibre yarn are arranged in the tackiness agent that is immersed in above-mentioned preparation in order, by regulating the pultrusion speed of hydraulic pressure extruder, control pulling speed at 400-600mm/min, then through guide plate, rearrange combination, entering mold heated solidifies, mold heated temperature control divides three sections, temperature control is in 125 ℃-140 ℃, 160 ℃-175 ℃ and 155 ℃-170 ℃, each temperature section time is controlled as 0.8min, and pultrusion makes drawing groove wedge.
Through check, the high heat-resistant high-strength drawing groove wedge performance of this embodiment is as follows:
Embodiment 2
High heat-resistant high-strength drawing groove wedge, in its finished product, the weight percent of alkali-free glass fiber cloth and alkali-free glass fibre yarn is 67%, cured glue stick weight ratio is 33%.
In alkali-free glass fiber cloth and alkali-free glass fibre yarn, the mass percent of alkali-free glass fiber cloth and alkali-free glass fibre yarn ratio is respectively 33% and 67%.
Tackiness agent is formed by following preparation of raw material: polyimide modified Vinylite 86%, in pultrusion initiator, benzoyl peroxide and peroxidized t-butyl perbenzoate are respectively 0.5% and 1.3%, releasing agent 1.6%, CaCO in filler
35%, Al (OH)
34%, mill base 0.9%, coupling agent 0.7%.
The alkali-free glass fiber cloth that is 67% by weight percent under normal temperature and alkali-free glass fibre yarn are arranged in the tackiness agent that is immersed in above-mentioned preparation in order, by regulating the pultrusion speed of hydraulic pressure extruder, control pulling speed at 420-550mm/min, then through guide plate, rearrange combination, entering mold heated solidifies, mold heated temperature control divides three sections, temperature control is in 120 ℃-140 ℃, 160 ℃-180 ℃ and 160 ℃-170 ℃, each temperature section time is controlled as 0.9min, and pultrusion makes drawing groove wedge.
Through check, the high heat-resistant high-strength drawing groove wedge performance of this embodiment is as follows:
Embodiment 3
High heat-resistant high-strength drawing groove wedge, in its finished product, the weight percent of alkali-free glass fiber cloth and alkali-free glass fibre yarn is frequently 66%, cured glue stick weight ratio is 34%.
In alkali-free glass fiber cloth and alkali-free glass fibre yarn, the mass ratio of alkali-free glass fiber cloth and alkali-free glass fibre yarn is respectively 33% and 67%.
Tackiness agent is formed by following preparation of raw material:
Polyimide modified Vinylite 87%, in pultrusion initiator, benzoyl peroxide and peroxidized t-butyl perbenzoate are respectively 0.5% and 1.5%, releasing agent 1.5%, CaCO in filler
33%, Al (OH)
35%, mill base 0.9%, coupling agent 0.6%.
The alkali-free glass fiber cloth that is 66% by weight percent under normal temperature and alkali-free glass fibre yarn are arranged in the tackiness agent that is immersed in above-mentioned preparation in order, by regulating the pultrusion speed of hydraulic pressure extruder, control pulling speed at 350-510mm/min, then through guide plate, rearrange combination, entering mold heated solidifies, mold heated temperature control divides three sections, temperature control is in 115 ℃-135 ℃, 155 ℃-170 ℃ and 145 ℃-165 ℃, each temperature section time is controlled as 1min, and pultrusion makes drawing groove wedge.
Through check, the high heat-resistant high-strength drawing groove wedge performance of this embodiment is as follows
Claims (6)
1. high heat-resistant high-strength drawing groove wedge, is comprised of alkali-free glass fiber cloth, alkali-free glass fibre yarn and tackiness agent.Wherein the weight percent of alkali-free glass fiber cloth and alkali-free glass fibre yarn summation is 66-70%, and the weight ratio of tackiness agent is 30-34%;
Described tackiness agent is formed by the preparation of raw material of following weight percent part:
2. high heat-resistant high-strength drawing groove wedge as claimed in claim 1, is characterized in that, described pultrusion initiator is the combination of benzoyl peroxide and peroxidized t-butyl perbenzoate.
3. high heat-resistant high-strength drawing groove wedge as claimed in claim 1, is characterized in that, described releasing agent is FZ-801, purchased from Dongguan Fu Zhen Trade Co., Ltd..
4. high heat-resistant high-strength drawing groove wedge as claimed in claim 1, is characterized in that, described filler is CaCO
3, Al (OH)
3or its combination.
5. high heat-resistant high-strength drawing groove wedge as claimed in claim 1, is characterized in that, described coupling agent is KH550, and chemical name is 3-aminopropyl triethoxysilane.
6. the manufacture method of high heat-resistant high-strength drawing groove wedge described in claim 1 to 5 any one claim, it is characterized in that, that alkali-free glass fiber cloth and alkali-free glass fibre yarn are arranged in sequence and entered glue groove, after impregnation, through guide plate, line up regular shape, enter mould, pultrusion; Control temperature for three sections of pulling and be respectively 115 ℃-145 ℃, 155 ℃-180 ℃, 145 ℃-170 ℃, each temperature section is controlled as 0.6-1.2min; Pultrusion rate-controlling is at 200-700mm/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410289245.0A CN104059359B (en) | 2014-06-24 | 2014-06-24 | High-heat-resistant high-strength crosswise slot wedge and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410289245.0A CN104059359B (en) | 2014-06-24 | 2014-06-24 | High-heat-resistant high-strength crosswise slot wedge and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN104059359A true CN104059359A (en) | 2014-09-24 |
| CN104059359B CN104059359B (en) | 2017-04-19 |
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|---|---|---|---|
| CN201410289245.0A Active CN104059359B (en) | 2014-06-24 | 2014-06-24 | High-heat-resistant high-strength crosswise slot wedge and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109135644A (en) * | 2018-08-17 | 2019-01-04 | 浙江博菲电气股份有限公司 | A kind of new energy motor fire-retardant slot wedge and its preparation process |
| 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 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1267945A (en) * | 1999-03-19 | 2000-09-27 | 李明 | Preparation of magnetic slot wedge |
| CN101295894A (en) * | 2008-06-11 | 2008-10-29 | 嘉兴市新大陆机电有限公司 | Magnetic slot wedge and production method thereof |
| 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 |
| CN102480184A (en) * | 2010-11-25 | 2012-05-30 | 衡水电机股份有限公司 | Magnetic slot wedge and production method thereof |
| CN102570677A (en) * | 2012-02-16 | 2012-07-11 | 无锡市万邦机械制造厂 | Motor slot wedge |
| CN102807740A (en) * | 2012-08-07 | 2012-12-05 | 衡阳恒缘电工材料有限公司 | Polyester type stir-leading piece |
-
2014
- 2014-06-24 CN CN201410289245.0A patent/CN104059359B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1267945A (en) * | 1999-03-19 | 2000-09-27 | 李明 | Preparation of magnetic slot wedge |
| CN101295894A (en) * | 2008-06-11 | 2008-10-29 | 嘉兴市新大陆机电有限公司 | Magnetic slot wedge and production method thereof |
| CN102480184A (en) * | 2010-11-25 | 2012-05-30 | 衡水电机股份有限公司 | Magnetic slot wedge and production method thereof |
| 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 |
| CN102570677A (en) * | 2012-02-16 | 2012-07-11 | 无锡市万邦机械制造厂 | Motor slot wedge |
| CN102807740A (en) * | 2012-08-07 | 2012-12-05 | 衡阳恒缘电工材料有限公司 | Polyester type stir-leading piece |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109135644A (en) * | 2018-08-17 | 2019-01-04 | 浙江博菲电气股份有限公司 | A kind of new energy motor fire-retardant slot wedge and its preparation process |
| 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 |
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| CN104059359B (en) | 2017-04-19 |
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Address after: 421008 Hunan city of Hengyang Province Huang Cha Ling Yuan Cun Heng Yanfeng District No. 4 Applicant after: Hunan Heng Yuan green wood Science and Technology Co., Ltd. Address before: 421008 Hunan city of Hengyang Province Huang Cha Ling Yuan Cun Heng Yanfeng District No. 4 Applicant before: Hengyang Hengyuan Electrical Material Co., Ltd. |
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