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 PDFInfo
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- 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
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- dipping
- way tape
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
- B29B15/08—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of reinforcements or fillers
- B29B15/10—Coating or impregnating independently of the moulding or shaping step
- B29B15/12—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length
- B29B15/14—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length of filaments or wires
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/08—Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers
- B29L2031/082—Blades, e.g. for helicopters
- B29L2031/085—Wind turbine blades
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reinforced Plastic Materials (AREA)
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
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.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710221206.0A CN106976179B (en) | 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 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710221206.0A CN106976179B (en) | 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 |
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| Publication Number | Publication Date |
|---|---|
| CN106976179A CN106976179A (en) | 2017-07-25 |
| CN106976179B true CN106976179B (en) | 2019-02-15 |
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Citations (2)
| 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)
| 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 manufacturing wind turbine blades |
| DE10259943A1 (en) * | 2002-12-20 | 2004-07-01 | Rolls-Royce Deutschland Ltd & Co Kg | Protective ring for the fan protective housing of a gas turbine engine |
| US20120099976A1 (en) * | 2010-10-26 | 2012-04-26 | Honeywell International Inc. | Fan containment systems with improved impact structures |
-
2017
- 2017-04-06 CN CN201710221206.0A patent/CN106976179B/en active Active
Patent Citations (2)
| 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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| CN106976179A (en) | 2017-07-25 |
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