CN106976179B - A kind of dipping method of the glass fibre one-way tape for the main blade crossbeam of paving - Google Patents

A kind of dipping method of the glass fibre one-way tape for the main blade crossbeam of paving Download PDF

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Publication number
CN106976179B
CN106976179B CN201710221206.0A CN201710221206A CN106976179B CN 106976179 B CN106976179 B CN 106976179B CN 201710221206 A CN201710221206 A CN 201710221206A CN 106976179 B CN106976179 B CN 106976179B
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glass fibre
weight
dipping
way
way tape
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CN201710221206.0A
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Chinese (zh)
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CN106976179A (en
Inventor
刘政
宋瑶
潘永生
林长亮
张元瑞
于馨皓
杨库
胡伟
刘博�
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哈尔滨飞机工业集团有限责任公司
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Publication of CN106976179A publication Critical patent/CN106976179A/en
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Abstract

The invention belongs to manufacture technology of composite material, are related to a kind of dipping method of glass fibre one-way tape for the main blade crossbeam of paving.The step of dipping, is as follows: preparing maceration extract;The table of comparisons of glass fibre one-way tape weight after establishing the dry glass fibre one-way tape weight of each batch glass fibre feed material length and impregnating;Dipping;Pass through critical point;Sampling;Determine whether dipping is qualified.The invention proposes a kind of dipping methods of glass fibre one-way tape for the main blade crossbeam of paving, it substantially reduces since the line density fluctuation of glass fibre causes the weight and volume of preimpregnated glass fibre one-way tape line to fluctuate, the static balance off-gage phenomenon for blade occur is avoided, the compression molding qualification rate of blade is improved.

Description

A kind of dipping method of the glass fibre one-way tape for the main blade crossbeam of paving

Technical field

The invention belongs to manufacture technology of composite material, are related to a kind of glass fibre one-way tape for the main blade crossbeam of paving Dipping method.

Background technique

Main blade is the most critical component of helicopter, and the prepreg tape crossbeam of composite material blade is the most critical of main blade Component only places the suitable prepreg tape crossbeam of volume for molding, can just produce qualified main blade.Currently, straight It is preimpregnated glass fibre one-way tape that owner's blade, which is risen, with crossbeam, and used method is that strict control gel content is ± 2% Method, that is to say, that only in control unit length preimpregnated glass fibre one-way tape shared by epoxy resin and domestic DDM curing agent Weight ratio.The disadvantage is that: since the line density of glass fibre generally has fluctuation, it is unidirectional to will cause preimpregnated glass fibre in this way Band line density maximum fluctuation reaches ± 9%, and volume fluctuation reaches ± 6%, and weight and volume big in this way fluctuation will for blade The compression molding qualification rate for influencing blade, leads to the static balance off-gage phenomenon for blade often occur.In addition, for composite material paddle For leaf manufacture, the relative dimensions between material are extremely important, if the change in size of some part is excessive, will affect The thickness of other parts, and then its index and mechanical performance for corresponding to gel content is influenced, when serious, it is possible that large area It is layered, comes unglued, be not available the blade manufactured.

Summary of the invention

The purpose of the present invention is: propose a kind of dipping method of glass fibre one-way tape for the main blade crossbeam of paving, So as to reduce due to glass fibre line density fluctuation cause the weight and volume of preimpregnated glass fibre one-way tape line to fluctuate, avoid There is the static balance off-gage phenomenon of blade, improves the compression molding qualification rate of blade.

The technical scheme is that a kind of dipping method of the glass fibre one-way tape for the main blade crossbeam of paving, The object of dipping is the glass fibre one-way tape for the main blade crossbeam of paving, is put into main paddle molding mold after dipping, leaching The step of stain, is as follows:

1, prepare maceration extract: maceration extract is the mixture of CY205 epoxy resin and domestic DDM curing agent, epoxy resin with The weight ratio of DDM curing agent is 100:26~100:28, and DDM curing agent is diamino-diphenyl-methane;

2, glass after establishing the dry glass fibre one-way tape weight of each batch glass fibre feed material length and impregnating The table of comparisons of the glass one-way fiber with weight, the method for building table is:

2.1, determine the numerical value of unit length L: unit length L takes the integral multiple of 100mm;

2.2, determine the structure of table: the table of comparisons is the bivariate table that n row 3 arranges, and the 1st column indicate in addition to uppermost cell The section serial number of the dry glass fiber weight of unit length is the 1st section to the n-th section respectively from top to bottom, and the 1st row is except most Indicate that column name, the column name of the 2nd column are the dry glass fibre one-way tape tow weight of unit length outside the cell on the left side m1, unit g;The column name of 3rd column is the weight m of mixture after dipping2, unit g, weight tolerance is theoretical calculation weight The 6% of value;N is the natural number not less than 8;The dry glass fibre one-way tape tow weight m of unit length1Determination method It is: according to the measured data to a large amount of batch glass fibre one-way tape unit weights, determines the unidirectional tape unit of glass fibre The maximum value m of length weightmaxWith minimum value mminDifference DELTA m, then the weight m of the dry glass fibre one-way tape in the 1st section11 =mmin~(mmin+Δm/n);The weight m of the dry glass fibre one-way tape in 2nd section12=(mmin+ Δ m/n+0.01)~ (mmin+2Δm/n);And so on, the dry glass fibre one-way tape tow weight m in the n-th section1n=[m1(n-1)+(n-1)Δm/ N+0.01]~mmax;Computational accuracy is 2 after decimal point;

2.3, the dry glass one-way fiber band tow weight m in each weight section of unit length glass fibre is determined1, weigh Method is in continuous dry glass one-way fiber band tow, and 3 sections to 5 of exemplar for choosing unit length weigh, make even Mean value is m1

It 2.4, is dry glass fibers according to fibre density and the mixed density of resin and DDM and mixture sampling length The 1/10 of sampling length is tieed up, the theoretical calculation formula of constant cross-sectional area has been worked out, it is unidirectional for glass fibre after calculating dipping The weight m of band and dipping liquid mixture2

3, it impregnates: the glass fibre one-way tape impregnated will be needed to be put into impregnating equipment, under the traction of pulling equipment, glass Glass one-way fiber band moves dipping in the dipping tank of impregnating equipment and moves, and the glass fibre one-way tape after dipping is contained by epoxy resin When amount control deflector roll, by the space between two deflector rolls, control stays in the weight of the maceration extract on glass fibre one-way tape;

4, it samples: in impregnated glass fibre one-way tape, acquiring out after dipping 3 sections to 5 sections of exemplar, exemplar after dipping Length be the 1/10 of unit length, weigh dipping after exemplar weight, calculate dipping after exemplar weight average value m3

5, determine whether dipping is qualified: as sampled data m3With theoretical calculation data m2It matches, shows that this time dipping closes Lattice;Work as m3Beyond the data value calculated in formula, the gap between epoxy resin content control deflector roll must be adjusted, step 3 is repeated To step 5, until sampled data m3With theoretical calculation data m2Until matching.

The invention has the advantages that proposing a kind of dipping side of glass fibre one-way tape for the main blade crossbeam of paving Method is substantially reduced since the line density fluctuation of glass fibre causes the weight and volume wave of preimpregnated glass fibre one-way tape line It is dynamic, the static balance off-gage phenomenon for blade occur is avoided, the compression molding qualification rate of blade is improved.

Specific embodiment

The present invention is described in further details below.A kind of glass fibre one-way tape for the main blade crossbeam of paving Dipping method, the object of dipping are the glass fibre one-way tapes for the main blade crossbeam of paving, are put into main paddle molding after dipping In mold, the step of dipping, is as follows:

1, prepare maceration extract: maceration extract is the mixture of CY205 epoxy resin and domestic DDM curing agent, epoxy resin with The weight ratio of DDM curing agent is 100:26~100:28, and DDM curing agent is diamino-diphenyl-methane;

2, glass after establishing the dry glass fibre one-way tape weight of each batch glass fibre feed material length and impregnating The table of comparisons of the glass one-way fiber with weight, the method for building table is:

2.1, determine the numerical value of unit length L: unit length L takes the integral multiple of 100mm;

2.2, determine the structure of table: the table of comparisons is the bivariate table that n row 3 arranges, and the 1st column indicate in addition to uppermost cell The section serial number of the dry glass fiber weight of unit length is the 1st section to the n-th section respectively from top to bottom, and the 1st row is except most Indicate that column name, the column name of the 2nd column are the dry glass fibre one-way tape tow weight of unit length outside the cell on the left side m1, unit g;The column name of 3rd column is the weight m of mixture after dipping2, unit g, weight tolerance is theoretical calculation weight The 6% of value;N is the natural number not less than 8;The dry glass fibre one-way tape tow weight m of unit length1Determination method It is: according to the measured data to a large amount of batch glass fibre one-way tape unit weights, determines the unidirectional tape unit of glass fibre The maximum value m of length weightmaxWith minimum value mminDifference DELTA m, then the weight m of the dry glass fibre one-way tape in the 1st section11 =mmin~(mmin+Δm/n);The weight m of the dry glass fibre one-way tape in 2nd section12=(mmin+ Δ m/n+0.01)~ (mmin+2Δm/n);And so on, the dry glass fibre one-way tape tow weight m in the n-th section1n=[m1(n-1)+(n-1)Δm/ N+0.01]~mmax;Computational accuracy is 2 after decimal point;

2.3, the dry glass one-way fiber band tow weight m in each weight section of unit length glass fibre is determined1, weigh Method is in continuous dry glass one-way fiber band tow, and 3 sections to 5 of exemplar for choosing unit length weigh, make even Mean value is m1

It 2.4, is dry glass fibers according to fibre density and the mixed density of resin and DDM and mixture sampling length The 1/10 of sampling length is tieed up, the theoretical calculation formula of constant cross-sectional area has been worked out, it is unidirectional for glass fibre after calculating dipping The weight m of band and dipping liquid mixture2

3, it impregnates: the glass fibre one-way tape impregnated will be needed to be put into impregnating equipment, under the traction of pulling equipment, glass Glass one-way fiber band moves dipping in the dipping tank of impregnating equipment and moves, and the glass fibre one-way tape after dipping is contained by epoxy resin When amount control deflector roll, by the space between two deflector rolls, control stays in the weight of the maceration extract on glass fibre one-way tape;

4, it samples: in impregnated glass fibre one-way tape, acquiring out after dipping 3 sections to 5 sections of exemplar, exemplar after dipping Length be the 1/10 of unit length, weigh dipping after exemplar weight, calculate dipping after exemplar weight average value m3

5, determine whether dipping is qualified: as sampled data m3With theoretical calculation data m2It matches, shows that this time dipping closes Lattice;Work as m3Beyond the data value calculated in formula, the gap between epoxy resin content control deflector roll must be adjusted, step 3 is repeated To step 5, until sampled data m3With theoretical calculation data m2Until matching.

Embodiment

A kind of dipping method of the glass fibre one-way tape for the main blade crossbeam of paving, the object of dipping are for paving The step of glass fibre one-way tape of main blade crossbeam is put into main paddle molding mold after dipping, dipping is as follows:

1, prepare maceration extract: maceration extract is epoxy resin (CY205) and domestic DDM curing agent (diaminodiphenylmethane) Mixture, epoxy resin are mixed with DDM with weight ratio 100/27.

2, glass after establishing the dry glass fibre one-way tape weight of each batch glass fibre feed material length and impregnating The table of comparisons of the glass one-way fiber with weight, the method for building table is:

2.1, determine the numerical value of unit length L: unit length L takes the integral multiple of 100mm;It is selected in this specific implementation The dry glass fibre of a batch therefrom weighs 3 sections of the exemplar weighings that length is 2m, is respectively as follows: 56.31g, 56.43g, 56.48g, Average value m1For 56.41g.

2.2, the dry glass one-way fiber band tow weight m in each weight section of unit length glass fibre is determined1, take n =9, it determines Δ m=(59.04-56.16)/9=2.88, obtains 9 row weight distribution section, as shown in the table.

It 2.3, is dry glass fibers according to fibre density and the mixed density of resin and DDM and mixture sampling length The 1/10 of sampling length is tieed up, the theoretical calculation formula of constant cross-sectional area has been worked out, it is unidirectional for glass fibre after calculating dipping The weight m of band and dipping liquid mixture2

3, it impregnates: the glass fibre one-way tape impregnated will be needed to be put into impregnating equipment, under the traction of pulling equipment, glass Glass one-way fiber band moves dipping in the dipping tank of impregnating equipment and moves, and the glass fibre one-way tape after dipping is contained by epoxy resin When amount control deflector roll, by the space between two deflector rolls, control stays in the weight of the maceration extract on glass fibre one-way tape.

5, sample: in impregnated glass fibre one-way tape, acquiring out 0.2m, (acquisition length of mixture is dry glass The 1/10 of fiber) 3 sections of exemplar, weigh the weight of exemplar, respectively 7.20,7.24.7.26, average value m3It is 7.23.

6, determine whether dipping is qualified: being compared by the sample weight of acquisition with calculated weight, calculated result is 7.23, final result shows that sampled data matches with theoretical calculation data, shows that this time dipping is qualified.

Claims (1)

1. a kind of dipping method of the glass fibre one-way tape for the main blade crossbeam of paving, the object of dipping is for paving master The step of glass fibre one-way tape of blade crossbeam is put into main paddle molding mold after dipping, dipping is as follows:
1.1, prepare maceration extract: maceration extract is the mixture of CY205 epoxy resin and domestic DDM curing agent, epoxy resin and DDM The weight ratio of curing agent is 100:26~100:28, and DDM curing agent is diamino-diphenyl-methane;
1.2, glass after establishing the dry glass fibre one-way tape weight of each batch glass fibre feed material length and impregnating The table of comparisons of the one-way fiber with weight, the method for building table is:
1.2.1, determine the numerical value of unit length L: unit length L takes the integral multiple of 100mm;
1.2.2, determine the structure of table: the table of comparisons is the bivariate table that (n+1) row 3 arranges, and the 1st column remove uppermost cell appearance The section serial number for showing the dry glass fiber weight of unit length, is the 1st section to the n-th section respectively from top to bottom, the 1st row removes Indicate that column name, the column name of the 2nd column are the dry glass fibre one-way tape tow weight of unit length outside the cell on the most left side Measure m1, unit g;The column name of 3rd column is the weight m of mixture after dipping2, unit g, weight tolerance is theoretical calculation weight The 6% of magnitude;N is the natural number not less than 8;The dry glass fibre one-way tape tow weight m of unit length1Determination method It is: according to the measured data to a large amount of batch glass fibre one-way tape unit weights, determines the unidirectional tape unit of glass fibre The maximum value m of length weightmaxWith minimum value mminDifference DELTA m, then the weight m of the dry glass fibre one-way tape in the 1st section11 =mmin~(mmin+Δm/n);The weight m of the dry glass fibre one-way tape in 2nd section12=(mmin+ Δ m/n+0.01)~ (mmin+2Δm/n);And so on, the dry glass fibre one-way tape tow weight m in the n-th section1n=[m1(n-1)+(n-1)Δm/ N+0.01]~mmax;Computational accuracy is 2 after decimal point;
1.2.3, the dry glass one-way fiber band tow weight m in each weight section of unit length glass fibre is determined1, the side of weighing Method is in continuous dry glass one-way fiber band tow, and 3 sections to 5 sections of exemplar for choosing unit length weigh, make even Mean value is m1
It 1.2.4, is dry glass fibre according to fibre density and the mixed density of resin and DDM and mixture sampling length The theoretical calculation formula of constant cross-sectional area has been worked out in the 1/10 of sampling length, for glass fibre one-way tape after calculating dipping With the weight m of dipping liquid mixture2
1.3, it impregnates: the glass fibre one-way tape impregnated will be needed to be put into impregnating equipment, under the traction of pulling equipment, glass One-way fiber band is mobile in the dipping tank of impregnating equipment to be impregnated, and the glass fibre one-way tape after dipping passes through epoxy resin content When controlling deflector roll, by the space between two deflector rolls, control stays in the weight of the maceration extract on glass fibre one-way tape;
1.4, it samples: in impregnated glass fibre one-way tape, acquiring out after dipping 3 sections to 5 sections of exemplar, exemplar after dipping Length is the 1/10 of unit length, weighs the weight of exemplar after dipping, calculates the average value m of exemplar weight after dipping3
1.5, determine whether dipping is qualified: as sampled data m3With theoretical calculation data m2It matches, shows that this time dipping is qualified; Work as m3Beyond the data value calculated in formula, must gap between adjustment epoxy resin content control deflector roll, repeat step 1.3 to Step 1.5, until sampled data m3With theoretical calculation data m2Until matching.
CN201710221206.0A 2017-04-06 2017-04-06 A kind of dipping method of the glass fibre one-way tape for the main blade crossbeam of paving CN106976179B (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5308228A (en) * 1991-12-04 1994-05-03 Societe Nationale d'Etude et de Construction de Moteurs d`Aviation "S.N.E.C.M.A." Gas turbine blade comprising layers of composite material
CN102555103A (en) * 2011-12-29 2012-07-11 西安航天复合材料研究所 Preparation method for domestic carbon cloth pre-impregnated adhesive tape

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3930200B2 (en) * 1998-10-06 2007-06-13 三菱重工業株式会社 Method for producing wind power wings
DE10259943A1 (en) * 2002-12-20 2004-07-01 Rolls-Royce Deutschland Ltd & Co Kg Protective ring for the fan protection casing of a gas turbine engine
US20120099976A1 (en) * 2010-10-26 2012-04-26 Honeywell International Inc. Fan containment systems with improved impact structures

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5308228A (en) * 1991-12-04 1994-05-03 Societe Nationale d'Etude et de Construction de Moteurs d`Aviation "S.N.E.C.M.A." Gas turbine blade comprising layers of composite material
CN102555103A (en) * 2011-12-29 2012-07-11 西安航天复合材料研究所 Preparation method for domestic carbon cloth pre-impregnated adhesive tape

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