CN104059359B - 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 PDF

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Publication number
CN104059359B
CN104059359B CN201410289245.0A CN201410289245A CN104059359B CN 104059359 B CN104059359 B CN 104059359B CN 201410289245 A CN201410289245 A CN 201410289245A CN 104059359 B CN104059359 B CN 104059359B
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alkali
free glass
adhesive
glass fibre
glass fiber
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CN104059359A (en
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高禄生
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Hunan Heng Yuan Green Wood Science And Technology Co Ltd
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Hunan Heng Yuan Green Wood Science And Technology Co Ltd
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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
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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

High heat-resistant high-strength drawing groove wedge and preparation method thereof
Technical field
The present invention relates to a kind of high heat-resistant high-strength drawing groove wedge for wind turbine component and preparation method thereof, should High heat-resistant high-strength drawing groove wedge is formed by pultrusion after glass fabric and glass fibre yarn gumming stick, and drawing groove wedge can be made to exist Mechanical performance under high temperature is greatly improved.
Background technology
The most domestic asynchronous wind driven generator class of insulation is more than F levels at present, and magnetic slot-seal is transported under this kind of operating mode OK, its hot mechanical performance is remarkably decreased, and easily causes coming off for magnetic slot-seal, and electrical machine insulation performance is reduced, and does not meet wind-force Electromotor life cycle length, high reliability, performance requirement easy to maintenance.
Chinese invention patent publication number CN101295894A discloses a kind of its production method of magnetic slot-seal level, and its room temperature resists Split intensity 1044N/10mm, 155 DEG C of bending strengths 132.5MPa, 180 DEG C of bending strengths 122.5MPa, normality and hot mechanicalness All can be difficult to meet the actual requirement of wind-driven generator slot wedge.
The content of the invention
One of the technical problem to be solved is for the above-mentioned technical problem existing for existing magnetic slot-seal A kind of high heat-resistant high-strength drawing groove wedge is provided, normality and the hot mechanical performance of the high heat-resistant high-strength drawing groove wedge can expire Sufficient wind-driven generator performance wants wedge.
The two of the technical problem to be solved are the preparation side for providing above-mentioned high heat-resistant high-strength drawing groove wedge Method.
The technical problem to be solved can be achieved through the following technical solutions：
High heat-resistant high-strength drawing groove wedge, is made up of alkali-free glass fiber cloth, alkali-free glass fibre yarn and adhesive.Wherein The percentage by weight of alkali-free glass fiber cloth and alkali-free glass fibre yarn summation is 66-70%, and the weight ratio of adhesive is 30- 34%；
The adhesive is formed by the preparation of raw material of following weight percent part：
In a preferred embodiment of the invention, the pultrusion initiator is benzoyl peroxide and perbenzoic acid The combination of the tert-butyl ester.
In a preferred embodiment of the invention, the releasing agent is FZ-801, purchased from the Dongguan limited public affairs of rich true industry and trade Department.
In a preferred embodiment of the invention, described filler is CaCO3、Al(OH)3Or its combination.
In a preferred embodiment of the invention, the coupling agent is KH550, and chemical name is three ethoxy of 3- aminopropyls Base silane.
The high heat-resistant high-strength drawing groove wedge manufacture method of the present invention is by alkali-free glass fiber cloth and alkali-free glass fibre Yarn is arranged in sequence and enters glue groove, the shape of rule is lined up through guide plate, into mould, pultrusion after impregnation； The three stage control temperature of pulling is respectively 115 DEG C -145 DEG C, 155 DEG C -180 DEG C, 145 DEG C -170 DEG C, and each temperature section is controlled to 0.6-1.2min；Pultrusion rate controlled is in 200-700mm/min.
The present invention increased the horizontal mechanical strength of slot wedge due to introducing alkali-free glass fiber cloth；Adhesive is improved, is made Slot wedge has excellent performance at high temperature.Higher bending strength and split resistance are kept at high temperature especially, at 155 DEG C 300MPa and more than 2500N/10mm is respectively reached.The service requirement of wind-driven generator can be met completely.
Specific embodiment
Embodiment 1
High heat-resistant high-strength drawing groove wedge, the weight percent of alkali-free glass fiber cloth and alkali-free glass fibre yarn in its finished product Than for 69%, cured glue stick weight ratio is 31%.
In alkali-free glass fiber cloth and alkali-free glass fibre yarn, the quality of alkali-free glass fiber cloth and alkali-free glass fibre yarn Percentage ratio is respectively 33% and 67%.
Adhesive is formed by following percentage by weight preparation of raw material：Polyimide modified vinylite 85%, pultrusion is drawn In sending out agent, benzoyl peroxide is respectively 0.5% and 1.1% with peroxidized t-butyl perbenzoate, releasing agent 1.6%, in filler CaCO36%th, Al (OH)34%, mill base 1.0%, coupling agent 0.8%.
Alkali-free glass fiber cloth that percentage by weight is 69% and alkali-free glass fibre yarn are arranged into leaching in order under room temperature , in the adhesive of above-mentioned preparation, by the pultrusion speed for adjusting hydraulic pressure extruder, control pulling speed is in 400-600mm/ for stain Min, then Jing guide plates rearrange combination, be heating and curing into mould, mould heated for controlling temperature points three sections, temperature control in 125 DEG C- 140 DEG C, 160 DEG C -175 DEG C and 155 DEG C -170 DEG C, each temperature section time control is 0.8min, and pultrusion is obtained pulling groove Wedge.
Jing is checked, and the high heat-resistant high-strength drawing groove wedge performance of the embodiment is as follows：
Embodiment 2
High heat-resistant high-strength drawing groove wedge, the weight percent of alkali-free glass fiber cloth and alkali-free glass fibre yarn in its finished product Than for 67%, cured glue stick weight ratio is 33%.
In alkali-free glass fiber cloth and alkali-free glass fibre yarn, the quality of alkali-free glass fiber cloth and alkali-free glass fibre yarn Percentage ratio ratio respectively 33% and 67%.
Adhesive is formed by following preparation of raw material：Polyimide modified vinylite 86%, peroxide in pultrusion initiator Change benzoyl with peroxidized t-butyl perbenzoate respectively 0.5% and 1.3%, releasing agent 1.6%, CaCO in filler35%th, Al (OH)34%, mill base 0.9%, coupling agent 0.7%.
Alkali-free glass fiber cloth that percentage by weight is 67% and alkali-free glass fibre yarn are arranged into leaching in order under room temperature , in the adhesive of above-mentioned preparation, by the pultrusion speed for adjusting hydraulic pressure extruder, control pulling speed is in 420-550mm/ for stain Min, then Jing guide plates rearrange combination, be heating and curing into mould, mould heated for controlling temperature points three sections, temperature control in 120 DEG C- 140 DEG C, 160 DEG C -180 DEG C and 160 DEG C -170 DEG C, each temperature section time control is 0.9min, and pultrusion is obtained pulling groove Wedge.
Jing is checked, and the high heat-resistant high-strength drawing groove wedge performance of the embodiment is as follows：
Embodiment 3
High heat-resistant high-strength drawing groove wedge, the weight percent of alkali-free glass fiber cloth and alkali-free glass fibre yarn in its finished product It is frequently 66%, cured glue stick weight ratio is 34%.
In alkali-free glass fiber cloth and alkali-free glass fibre yarn, the quality of alkali-free glass fiber cloth and alkali-free glass fibre yarn Than being respectively 33% and 67%.
Adhesive is formed by following preparation of raw material：
Polyimide modified vinylite 87%, benzoyl peroxide and the tertiary fourth of perbenzoic acid in pultrusion initiator Ester respectively 0.5% and 1.5%, releasing agent 1.5%, CaCO in filler33%th, Al (OH)35%, mill base 0.9%, coupling agent 0.6%.
Alkali-free glass fiber cloth that percentage by weight is 66% and alkali-free glass fibre yarn are arranged into leaching in order under room temperature , in the adhesive of above-mentioned preparation, by the pultrusion speed for adjusting hydraulic pressure extruder, control pulling speed is in 350-510mm/ for stain Min, then Jing guide plates rearrange combination, be heating and curing into mould, mould heated for controlling temperature points three sections, temperature control in 115 DEG C- 135 DEG C, 155 DEG C -170 DEG C and 145 DEG C -165 DEG C, each temperature section time control is 1min, and pultrusion is obtained drawing groove wedge.
Jing is checked, and the high heat-resistant high-strength drawing groove wedge performance of the embodiment is as follows

Claims (1)

1. high heat-resistant high-strength drawing groove wedge, is made up of alkali-free glass fiber cloth, alkali-free glass fibre yarn and adhesive；Wherein without The percentage by weight of alkali containing glass fibre cloth and alkali-free glass fibre yarn summation is 66-70%, and the weight ratio of adhesive is 30- 34%；
The adhesive is formed by the preparation of raw material of following percentage by weight：
The pultrusion initiator is the combination of benzoyl peroxide and peroxidized t-butyl perbenzoate；
The releasing agent is FZ-801, purchased from Dongguan Fu Zhen Trade Co., Ltd.s；
Described filler is CaCO3、Al(OH)3Or its combination；
The coupling agent is KH550, and chemical name is 3- aminopropyl triethoxysilanes；
The manufacture method of the high heat-resistant high-strength drawing groove wedge, is by one by alkali-free glass fiber cloth and alkali-free glass fibre yarn Fixed order arrangement enters glue groove, the shape of rule is lined up through guide plate, into mould, pultrusion after impregnation；Pulling Three stage control temperature is respectively 115 DEG C -145 DEG C, 155 DEG C -180 DEG C, 145 DEG C -170 DEG C, and each temperature section is controlled to 0.6- 1.2min；Pultrusion rate controlled is in 200-700mm/min.
CN201410289245.0A 2014-06-24 2014-06-24 High-heat-resistant high-strength crosswise slot wedge and preparation method thereof Active CN104059359B (en)

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
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
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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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1152462C (en) * 1999-03-19 2004-06-02 李明 Preparation of magnetic slot wedge
CN101295894B (en) * 2008-06-11 2010-12-29 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
CN102255442B (en) * 2011-07-18 2013-01-23 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
CN102807740B (en) * 2012-08-07 2014-12-10 衡阳恒缘电工材料有限公司 Polyester type stir-leading piece

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