CN104786575B - A kind of asbestos base lamilate, its manufacturing method and its application - Google Patents
A kind of asbestos base lamilate, its manufacturing method and its application Download PDFInfo
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- CN104786575B CN104786575B CN201410025334.4A CN201410025334A CN104786575B CN 104786575 B CN104786575 B CN 104786575B CN 201410025334 A CN201410025334 A CN 201410025334A CN 104786575 B CN104786575 B CN 104786575B
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Abstract
The present invention relates to a kind of asbestos base lamilates for being suitable as gasket seal.Application the invention further relates to the manufacturing method of the asbestos base lamilate and its in encapsulating method.Asbestos base lamilate of the invention substantially reduces the dosage of asbestos, and have both excellent self-lubrication and resilience performance while maintaining substantially comparable sealing performance, heat resistance and heat-proof quality compared with the asbestos based articles of the prior art.
Description
Technical field
The present invention relates to a kind of asbestos base lamilates, are suitable as (high temperature resistant) gasket seal in particular to one kind
Asbestos base lamilate.The invention further relates to the manufacturing method of the asbestos base lamilate and its in encapsulating method, (for example high temperature resistant is close
Envelope, especially high temperature resistant static seal) in application.
Background technique
(such as refractory seals, especially high temperature resistant static seal) is sealed in chemical industry, fluid machinery, electric power and thermal technology's water
There is extensive demand in the fields such as power test.For this purpose, researcher both domestic and external has been developed for a variety of refractory seals pads
Piece, wherein being most widely used with asbestos base gasket seal.
Asbestos base gasket seal is manufactured using asbestos fibre/rubber clad plate as substrate, during manufacture and use
Inevitably give out a large amount of asbestos dust.It is known that asbestos dust in contactee in addition to that can cause asbestosis
Outside, the malignant tumours such as lung cancer and malignant mesothelioma are also easily induced.Therefore, because its serious hazard to person and environmental hazard
Property, the cry of countries in the world disabling asbestos grows to even greater heights in recent years.Currently, developed country has forbidden producing and limiting using stone
Cotton.But leakproofness, heat resistance and heat-proof quality significant prominent in view of it thus estimable, in many application fields,
The especially more severe application field of environment, it is irreplaceable that asbestos base gasket seal is still other gasket seals institute.
In addition, in certain application fields, such as in thermal hydraulic test, in addition to require leakproofness, heat resistance and every
Except hot property, it is also desirable to which gasket seal shows self-lubrication appropriate and resilience performance, sufficiently to adapt to face to be sealed
Thermal stress or pressing force variation.But existing asbestos base gasket seal does not have these performances.
There is also similar problems for other asbestos based articles.
Therefore, current status is that a kind of asbestos base lamilate is still required, and is maintaining the asbestos base system with the prior art
It, can be significant while product (such as asbestos base gasket seal) are compared to substantially comparable leakproofness, heat resistance and heat-proof quality
The dosage of asbestos is reduced, and has both excellent self-lubrication and resilience performance.
Summary of the invention
The present inventor is on the basis of existing technology by diligent the study found that by particular manner with graphite
Powder substitutes a part of asbestos (fiber) in prior art asbestos based articles, so that it may solve foregoing problems, and thus complete
At the present invention.
Specifically, the present invention relates to the contents of following aspect.
1. a kind of asbestos base lamilate, which is characterized in that including asbestos fibre-carbon fiber composite bed and be located at the asbestos
Graphite powder last layer (preferably expanded graphite powder layer) on fiber and carbon fiber composite layer one or both sides.
2. according to the described in any item asbestos base lamilates of aforementioned aspects, wherein compound in the asbestos fibre-carbon fiber
It further include metal tooth plate or metal otter board between layer and the graphite powder last layer.
3. according to the described in any item asbestos base lamilates of aforementioned aspects, wherein also further in the graphite powder last layer
There are n carbon fiber-containing layers and n additional graphite powder last layer (preferably expanded graphite powder layer), and wherein n is between 1 to 100
Arbitrary integer (arbitrary integer between preferably 1 to 10), the n carbon fiber-containing layer and n additional graphite powder last layer
Exist in an alternating manner, and the carbon fiber-containing layer choosing is from carbon fiber layer, asbestos fibre-carbon fiber composite bed or at least
The lamilate of one carbon fiber layer and at least one asbestos fibre-carbon fiber composite bed.
4. according to the described in any item asbestos base lamilates of aforementioned aspects, wherein the asbestos fibre-carbon fiber composite bed
Be the mixed layer of asbestos fibre and carbon fiber, at least one asbestos fibre layer and at least one carbon fiber layer lamilate or
The lamilate of at least one mixed layer and at least one lamilate.
5. according to the described in any item asbestos base lamilates of aforementioned aspects, wherein each asbestos fibre layer with a thickness of
0.3-10mm (preferably 1-5mm), each carbon fiber layer with a thickness of 0.2-1mm (preferably 0.3-0.5mm), each stone
Ink powder last layer with a thickness of 0.2-2mm (preferably 0.5-1mm), each mixed layer with a thickness of 0.3-10mm (preferably 1-
5mm), and each metal tooth plate or metal otter board with a thickness of 0.2-2mm (preferably 0.3-0.5mm).
6. a kind of manufacturing method of asbestos base lamilate, which is characterized in that including to asbestos fibre-carbon fiber composite bed
It optionally further include fine in the asbestos on one or both sides the step of laminated powdered graphite layer (preferably expanded graphite powder layer)
The step of metal tooth plate or metal otter board are introduced between dimension-carbon fiber composite bed and the graphite powder last layer.
7. according to the described in any item manufacturing methods of aforementioned aspects, wherein also further laminated in the graphite powder last layer
N carbon fiber-containing layer and n additional graphite powder last layer (preferably expanded graphite powder layer), wherein n is appointing between 1 to 100
It anticipates integer (arbitrary integer between preferably 1 to 10), the n carbon fiber-containing layer and n additional graphite powder last layer are to hand over
It is laminated for mode, and the carbon fiber-containing layer choosing from carbon fiber layer, asbestos fibre-carbon fiber composite bed or at least one
The lamilate of the carbon fiber layer and at least one asbestos fibre-carbon fiber composite bed.
8. according to the described in any item manufacturing methods of aforementioned aspects, wherein the asbestos fibre-carbon fiber composite bed is stone
The mixed layer of cotton fiber and carbon fiber, the lamilate of at least one asbestos fibre layer and at least one carbon fiber layer or at least
The lamilate of one mixed layer and at least one lamilate.
9. according to the described in any item asbestos base lamilates of aforementioned aspects or according to the described in any item systems of aforementioned aspects
Make application of the asbestos base lamilate of method manufacture as gasket seal.
10. a kind of encapsulating method, including will be according to the described in any item asbestos base lamilates of aforementioned aspects or according to preceding
State the step of asbestos base lamilate of the described in any item manufacturing method manufactures of aspect is as gasket seal and face contact to be sealed.
Technical effect
Asbestos base lamilate according to the present invention, in service performance (such as leakproofness, heat resistance and heat-proof quality etc.)
On can match in excellence or beauty the asbestos based articles (such as asbestos base gasket seal) of the prior art, while the dosage of asbestos substantially reduces, than
At least 50wt%, at least 66wt%, at least 80wt% or even more asbestos dosages can such as be reduced.Therefore, the asbestos base
The emission of lamilate asbestos dust during manufacture and use is very small, complies with current increasingly strict environmental protection/labour protection
It is required that.
Asbestos base lamilate according to the present invention shows excellent self-lubrication and resilience performance, is able to bear to close
Biggish thermal stress/pressing force variation on cover.
Asbestos base lamilate according to the present invention has mechanical strength appropriate and machinability, can be directed to specific
Purposes neatly machines or is shaped to various special-shaped shapes (molded non-planar).
Asbestos base lamilate according to the present invention, by using carbon fiber as compatilizer, improve asbestos (fiber) with
The affinity of powdered graphite, compared with the case where not using carbon fiber, anti-peeling and mechanical strength are significantly improved.
Detailed description of the invention
Fig. 1 schematically illustrates a kind of structure of asbestos base gasket seal of the present invention.
Fig. 2 schematically illustrates another structure of asbestos base gasket seal of the present invention.
Fig. 3 schematically illustrates the yet another construction of asbestos base gasket seal of the present invention.
Specific embodiment
Detailed description of the preferred embodiments below, it should be noted however that protection of the invention
Range is not limited to these specific embodiments, and but is determined by the appended claims.
All publications, patent application, patent and the other bibliography that this specification is mentioned all draw in this for reference.
Unless otherwise defined, all technical and scientific terms used herein all has what those skilled in the art routinely understood to contain
Justice.In case of conflict, it is subject to the definition of this specification.
When this specification with prefix " well known to those skilled in the art ", " prior art " or its export material similar to term
Whens material, substance, method, step, device or component etc., object derived from the prefix is covered this field when the application proposes and is routinely made
Those of with, but also include also being of little use at present, it will but become art-recognized for suitable for those of similar purpose.
In the context of the present specification, other than the content clearly stated, any matters or item that do not mention are equal
It is directly applicable in those of known in the art without carrying out any change.Moreover, any embodiment described herein can be with
It is freely combined with one or more other embodiments described herein, the technical solution or technical idea formed therefrom regards
For the original disclosure of the present invention or a part of original description, and be not considered as not disclosing or be expected herein it is new in
Hold, unless those skilled in the art think that the combination is obvious unreasonable.
In the case where not clearly indicating, all percentages (%), number, ratio for being previously mentioned in this specification etc. are all
It is on the basis of weight, unless not meeting the conventional understanding of those skilled in the art when using weight as benchmark.
First embodiment according to the present invention is related to a kind of asbestos base lamilate.
According to the present invention, the vertical section of the asbestos base lamilate has layer structure, and includes at least asbestos fibre-carbon
Fiber composite and the graphite powder last layer on the asbestos fibre-carbon fiber composite bed one or both sides (are sometimes referred to as below
For " main graphite powder last layer ", to be distinguished with " additional graphite powder last layer " described below).For this purpose, asbestos base of the invention
Lamilate includes at least the asbestos fibre-carbon fiber composite bed and one or two described main graphite powder last layer.From into
One step improves its self-lubrication and the angle of resilience performance is preferably, and the asbestos base lamilate includes at least the stone
Cotton fiber-carbon fiber composite bed and two main graphite powder last layer, wherein the two main graphite powder last layer are respectively at described
Asbestos fibre-carbon fiber composite bed two sides.At this point, the asbestos base lamilate (vertical section) is rendered as with the asbestos fibre
Layer centered on dimension-carbon fiber composite bed take the main graphite powder last layer as the sandwich structure of (most) outer layer.
According to the present invention, the asbestos base lamilate can such as be manufactured by the following method, the manufacturing method packet
The step of including the laminated main graphite powder last layer on the one or both sides of the asbestos fibre-carbon fiber composite bed.
A special embodiment according to the present invention, as needed, in the asbestos fibre-carbon fiber composite bed and institute
Stating can also include metal tooth plate or metal otter board between main graphite powder last layer, thus enhance the binding force between two layers, simultaneously
Increase the mechanical strength of entire asbestos base lamilate.For this purpose, previous building methods of the invention optionally further include in the asbestos
The step of metal tooth plate or metal otter board are introduced between fiber and carbon fiber composite layer and the graphite powder last layer, to make
It states metal tooth plate or metal otter board is between the asbestos fibre-carbon fiber composite bed and the main graphite powder last layer.
According to the present invention, as the metal tooth plate or the incorporation way of metal otter board, such as can be first in the asbestos
Setting or the laminated metal tooth plate or metal otter board on the one or both sides of fiber and carbon fiber composite layer, then again described
Setting or the laminated main graphite powder last layer on metal tooth plate or metal otter board；Alternatively, can also first by the metal tooth plate or
Metal otter board is combined layer by layer with the main powdered graphite, and the composite layer so obtained is then bonded to the asbestos fibre again
On dimension-carbon fiber composite bed one or both sides, it is not particularly limited.
It according to the present invention, can be only in the asbestos fibre-when the main graphite powder last layer has two as previously described
The metal tooth plate or metal otter board are introduced between carbon fiber composite bed and one of them described main graphite powder last layer (that is, one
Metal tooth plate or metal otter board), it can also be in the asbestos fibre-carbon fiber composite bed and two main graphite powder last layer
Each between introduce the metal tooth plate or metal otter board (that is, two metal tooth plates or metal otter board), there is no special
Other restriction.
According to the present invention, to used metal tooth plate or metal otter board at this time, there is no particular limitation, can directly make
With the prior art when manufacturing gasket seal for this purpose and it is conventional use of those.According to the present invention, to the metal tooth plate
Or also there is no particular limitation for the shape or thickness etc. of metal otter board, for example its thickness generally can be set as 0.2-2mm, preferably
0.3-0.5mm, but is not limited thereto, but is specifically chosen or is set according to the overall thickness of target asbestos base lamilate.
A special embodiment according to the present invention (obviously refers to outside) in the main graphite powder last layer and may be used also
To be further arranged or laminated n carbon fiber-containing layer and n additional graphite powder last layer.At this point, the n carbon fiber-containing layer
With n additional graphite powder last layer must in an alternating manner in the presence of or be laminated at the outside.In view of this specific presence or layer
Conjunction mode, in the same side of the main graphite powder last layer, these carbon fiber-containing layers and additional graphite powder last layer always (count in pairs
Mesh is equal, i.e., is respectively n) occur.In addition, being obviously preferably from the angle for improving structure efficiency, in first additional stone
First carbon fiber-containing layer is clipped between ink powder last layer and the main graphite powder last layer.
, it is preferred according to the present invention that first carbon fiber-containing layer is directly contacted with main graphite powder last layer.
According to the present invention, term " additional graphite powder last layer " is only literal table compared with term " main graphite powder last layer "
The difference stated does not have difference in art-recognized meanings, and the two is applicable in hereafter provides each independently, and herein sometimes
Graphite powder last layer is referred to as without being distinguish.
According to the present invention, the powdered graphite as the graphite powder last layer, preferably expanded graphite powder.As the expansion
Powdered graphite, for example, can directly use the prior art when manufacturing graphite sealing gasket as raw material it is conventional use of that
A bit, it is not particularly limited, for example the HD32 of Qingdao Nan Shu hongda graphite product Co., Ltd production can be enumerated.As institute
The granularity of powdered graphite is stated, for example -500 mesh of 10 mesh, preferably 10-50 mesh can be enumerated, but is not limited thereto.
According to the present invention, to the thickness of the graphite powder last layer, there is no particular limitation, can according to the actual situation or
The general thickness of target asbestos base lamilate is specifically set.For example, the thickness of the graphite powder last layer generally can be set as
0.2-2mm, preferably 0.5-1mm, but is not limited thereto.In addition, when the asbestos base lamilate generally include two or
When more graphite powder last layer, the thickness of each graphite powder last layer can also be set like this, and but is not limited thereto, but
It is specifically set according to the overall thickness of target asbestos base lamilate or the overall number of plies.
According to the present invention, n is the arbitrary integer between 1 to 100, the arbitrary integer between preferably 1 to 10, for example, 1,2,3,
4 or 5 etc..
It according to the present invention, can an only master wherein when the main graphite powder last layer has two as mentioned before
The outside of graphite powder last layer is arranged or the laminated n carbon fiber-containing layers and the n additional graphite powder last layer, can also be
Be respectively provided on the outside of each in two main graphite powder last layer or laminated n carbon fiber-containing layers and n it is described additional
Graphite powder last layer.In the latter case, specifically, in the setting of the outside of a main graphite powder last layer or laminated n
A carbon fiber-containing layer and the n additional graphite powder last layer, are arranged in the outside of another main graphite powder last layer
Or a carbon fiber-containing layer of laminated n ' and a additional graphite powder last layer of n '.At this point, n and n ' can be mutually the same,
Can be different from each other, meet the aforementioned definitions herein for n each independently.
According to the present invention, the carbon fiber-containing layer choosing from carbon fiber layer, asbestos fibre-carbon fiber composite bed or one or
(the friendship of multiple (such as 2,3,4 or 5 etc.) carbon fiber layers and equal number of asbestos fibre-carbon fiber composite bed
For) lamilate (referred to as lamilate A), wherein it is preferred that carbon fiber layer.
According to the present invention, as the asbestos fibre-carbon fiber composite bed, for example asbestos fibre and carbon fiber can be enumerated
Mixed layer (also referred to as stone carbon mixed layer), m (m is such as the integers such as 1,2,3,4 or 5, preferably 1 or 2, more preferable 1) asbestos
(alternating) lamilate (also referred to as stone carbon-coating is fit) or one of fibrous layer and m or m+1 a (preferably m+1) carbon fiber layers
(alternating) layer of a or multiple (such as 2,3,4 or 5 etc.) the stone carbon mixed layer and equal number of stone carbon-coating zoarium
Fit (referred to as lamilate B), wherein more preferable stone carbon-coating is fit it is preferred that stone carbon mixed layer or stone carbon-coating are fit.
According to the present invention, to carbon fiber used in each layer (such as carbon fiber layer or asbestos fibre-carbon fiber composite bed etc.)
Those of there is no particular limitation for dimension, directly can routinely be used using manufacture carbon cloth or when carbon fiber prepreg, such as
The general carbon fiber of T400 of toray company manufacture can be enumerated.As the length of the carbon fiber, for example 3- can be enumerated
50mm, preferably 10-30mm, but is not limited thereto.
According to the present invention, to stone used in each layer (such as asbestos fibre-carbon fiber composite bed or asbestos fibre layer etc.)
There is no particular limitation for cotton fiber, for example directly can routinely be made using this field when manufacturing asbestos fibre/rubber clad plate
Those of with.According to the present invention, not special to the ratio of asbestos fibre described in the stone carbon mixed layer and the carbon fiber
Restriction, for example according to poidometer, the ratio of the asbestos fibre and the carbon fiber can be 100:50-100:1, preferably
100:10-100:1, but is not limited thereto.
According to the present invention, the stone carbon mixed layer can be the layer (referred to as preform) of preforming.At this point, to the stone
There is no particular limitation for the manufacturing method of carbon mixed layer, for example can enumerate and mix the asbestos fibre according to predetermined volume ratio
With the carbon fiber, the method that stone carbon mix obtained is then shaped to stratiform.As needed, in order to improve fiber
For cohesiveness simultaneously convenient for molding, adhesive is can be used in when mixing.As the manufacturing method for using adhesive, for example can enumerate
The method that adhesive is added before mixing the asbestos fibre and the carbon fiber and/or in its mixed process, it is more specific to compare
Mix the asbestos fibre and the carbon fiber with adhesive respectively in advance, then again by these premixings obtained
Object further mixes and obtains stone carbon mix, the method that the stone carbon mix is then shaped to stratiform, can also be with
It is that the asbestos fibre, the carbon fiber and adhesive are directly mixed together and obtain stone carbon mix, then by the stone
The method that carbon mix is shaped to stratiform.At this point, the stone carbon mixed layer includes at least asbestos fibre, carbon fiber and adhesive.
According to the present invention, the carbon fiber layer can be the layer (referred to as preform) of preforming.At this point, to the carbon fiber
There is no particular limitation for the manufacturing method of dimension layer, for example can enumerate the method by carbon fiber direct-shaping for stratiform.According to need
It wants, in order to improve the cohesiveness of fiber and convenient for molding, adhesive can be used.As the manufacturing method for using adhesive, than
It can such as enumerate and be directly mixed together the carbon fiber and adhesive, mixture obtained is then shaped to stratiform
Method.At this point, the carbon fiber layer includes at least carbon fiber and adhesive.Alternatively, more conveniently, as the carbon fiber layer
(preform) can also directly use commercially available carbon cloth or carbon fiber prepreg, if its thickness meet it is of the invention
Regulation.As the carbon cloth, for example the T400HB-6000-40D of toray company manufacture can be enumerated.
According to the present invention, the asbestos fibre layer can be the layer (referred to as preform) of preforming.At this point, to the stone
There is no particular limitation for the manufacturing method of cotton fiber layer, for example can enumerate the method that asbestos fibre is directly formed to stratiform.
As needed, in order to improve the cohesiveness of fiber and convenient for molding, adhesive can be used.As the manufacturer for using adhesive
Method, for example can enumerate and be directly mixed together the asbestos fibre and adhesive, then mixture obtained is formed
For the method for stratiform.At this point, the asbestos fibre layer includes at least asbestos fibre and adhesive.Alternatively, more conveniently, as
The asbestos fibre layer (preform) can also directly use commercially available asbestos fibre/rubber clad plate, as long as its thickness is full
Foot regulation of the invention.As the asbestos fibre/rubber clad plate, for example Hebei henry can be enumerated have up to sealing material
The XB450 of limit company production.
According to the present invention, the graphite powder last layer (including main graphite powder last layer and additional graphite powder last layer) can be pre-
First molding layer (referred to as preform).At this point, to the manufacturing method of the graphite powder last layer, there is no particular limitation, such as can be with
Enumerate the method that powdered graphite is directly formed to stratiform.As needed, in order to improve powdered graphite cohesiveness and convenient at
Adhesive can be used in type.As the manufacturing method for using adhesive, for example can enumerate the powdered graphite and adhesive
It is directly mixed together, the method that mixture obtained is then shaped to stratiform.At this point, the graphite powder last layer is at least wrapped
Graphitiferous powder and adhesive.
According to the present invention, the asbestos fibre-carbon fiber composite bed, the stone carbon-coating be fit, the lamilate A and described
Lamilate B is also possible to the layer (referred to as preform) of preforming.As the manufacturing method of these preforms, such as can be with
Enumerate the method for being laminated together each layer (or preform of each layer) corresponding (alternating) for constituting it.
According to the present invention, method used by previously mentioned each " molding " or its similar operations is not limited particularly
It is fixed, as long as object to be formed (than powdered graphite as the aforementioned or stone carbon mix etc.) can be shaped to any method of stratiform
It can use.As the forming method, specifically can such as enumerate compression moulding (compression molding) method, coated and molded method,
Doctor-blade casting process etc., wherein be preferably laminated to type method, especially high temperature compression moulding method.These forming methods can be according to routine
Known any mode carries out, and there is no particular limitation.When using adhesive, at the time of the molding terminates, the bonding
Agent may be at that state is fully cured, and also may be at uncured state, is also in partly solidified state, wherein from improvement
For the angle of cohesive force between each layer, it is preferably in uncured state or partly solidified state.If desired, can also be right
The layer obtained after the molding imposes rear curing operation, so that adhesive used in any is fully cured or at least partly
Solidification.Technical staff can suitably set the condition of the rear curing operation based on the specific type of used adhesive, this
It is all a bit known technology, the description thereof will be omitted herein.
According to the present invention, method used by previously mentioned each " mixing " or its similar operations is not limited particularly
It is fixed, as long as can be by two or more to be mixed components (such as asbestos fibre and adhesive or asbestos fibre, carbon fiber
Dimension and adhesive) any method for being homogenously mixed together and obtaining homogeneous mixture can be used.As the mixing side
Method, specifically can such as enumerate mechanical (high speed) paddling process, be kneaded method, mediate method, blending method etc..These mixed methods can be by
Any mode known to more solito carries out, and there is no particular limitation.When using adhesive, for the ease of post molding operations
It carries out, at the time of the mixing terminates, described adhesive is typically in uncured state or partly solidified state, this is for technology
It is obvious for personnel.
According to the present invention, for the angle for simplifying operating procedure or as needed, the stone carbon mixed layer, the carbon
Fibrous layer, the asbestos fibre layer and/or the graphite powder last layer can not also preforming be stratiform (that is, not using its pre-
The form of formed body), but be shaped to stratiform while laminated or stratiform laminated is shaped to by this.These technologies are all
It is known.It for example, can be by asbestos fibre-in laminated asbestos fibre-carbon fiber composite bed and main graphite powder last layer
The preform of carbon fiber composite bed and the preform of main graphite powder last layer are laminated together, or can also be in asbestos fibre
It is coated with to direct layered in dimension-carbon fiber composite bed or its preform or the powdered graphite or graphite of spreading predetermined volume
The mixture (that is, manufacturing used raw material when the preform of main graphite powder last layer) of powder and adhesive, then by two
It is a to be combined layer by layer.
According to the present invention, each to method used by previously mentioned each " laminated " or its similar operations or manufacture (to hand over
For) there is no particular limitation for lamilate or when its preform related each laminating method, as long as can make to laminated
Two or more layers (for example asbestos fibre-carbon fiber composite bed contains with main graphite powder last layer, main graphite powder last layer and (first)
Carbon fiber layer, carbon fiber-containing layer and additional graphite powder last layer, carbon fiber layer and asbestos fibre-carbon fiber composite bed, asbestos are fine
Tie up layer and carbon fiber layer, stone carbon mixed layer and stone carbon-coating zoarium etc., including its respective preform) to be combined with each other be one
Any method of whole (layer) can use.As the laminating method, for example, can enumerate make these layers (including its it is pre- at
Type body) combined method under the action of pressure and/or adhesive, it more specifically can such as enumerate (machinery) compacting
Method, adhesives the method perhaps combination side that wherein preferred pressing or adhesives method are combined with pressing
Method.These methods are known to technical staff, and the description thereof will be omitted herein.For example, pressing pressure is generally set when carrying out the compacting
It is set to 0.2-10MPa, preferably 3-5MPa, the retention time is usually set to 1-60min, preferably 5-30min, more preferable 10-
15min, but it is also not limited to this sometimes.If having used adhesive when laminated, at the time of the laminated end or in the layer
Close carry out during, used laminating conditions (such as temperature) can make described adhesive reach the state of being fully cured,
It keeps uncured state or reaches partly solidified state, be not particularly limited.In addition, as needed, it can also be at this
Curing operation after being carried out after laminated, so that any adhesive that may be used when laminated is (such as bonding the viscous of each layer
Mixture) and/or each layer in any adhesive that may contain be fully cured.Technical staff can be based on used adhesive
Specific type suitably sets the condition of the rear curing operation, these are all known technologies, and the description thereof will be omitted herein.
According to the present invention, the type to previously mentioned any adhesive and its dosage (such as the use relative to each fiber
Dosage etc. when measuring or is laminated) there is no particular limitation, as long as the adhesive can play its scheduled attachment function i.e.
It can.Technical staff can be (such as pre- in manufacture asbestos fibre/rubber clad plate, graphite sealing gasket, carbon fiber from related fields
Whens leaching material or carbon cloth etc.) it arbitrarily selects in conventional use of those adhesives.It is apparent that laminated in the asbestos base
When body is envisaged for high-temperature use, it is desirable to described adhesive also shows high temperature resistance, such as can be resistant to 200-550 DEG C or
Even higher temperature.Specifically, as described adhesive, for example thermoset rubber adhesive, thermosetting property ring can be enumerated
Oxygen resin binder, thermosetting phenolic resin adhesive, inorganic bond etc..As the thermoset rubber adhesive, such as
Butadiene-styrene rubber adhesive, nitrile rubber binder, caoutchouc adhesive, ethylene-propylene-diene monomer viscose binder etc. can be enumerated.Make
For the thermosetting epoxy adhesive, for example bisphenol-s epoxy resin, novolac epoxy resin, glycidol can be enumerated
Type polyfunctional epoxy resin, cycloaliphatic epoxy resin etc..As the thermosetting phenolic resin adhesive, for example phenol can be enumerated
Urea formaldehyde, boron bakelite resin etc..As the inorganic bond, for example metal oxide binder, metal hydrogen-oxygen can be enumerated
Compound adhesive, silicate adhesive etc..As needed, additive can also be contained as helper component in described adhesive.
As the additive, for example, can enumerate retarder thinner, curing agent (vulcanizing agent), curing accelerator, anti-aging agent, reinforcing agent,
Filler, fire retardant etc..The specific type of these additives and dosage etc. belong to often for the adhesive of corresponding type
Knowledge is advised, details are not described herein.
According to the present invention, for example, the stone carbon mixed layer or the asbestos fibre layer generally preferably use aforementioned
Thermoset rubber adhesive as adhesive.At this point, described adhesive is relative to asbestos fibre or asbestos fibre and carbon fiber
Dosage for the total weight of dimension is generally 1:100-50:100, preferably 1:100-10:100 by weight, but sometimes not
It is limited to this.Alternatively, the carbon fiber layer generally preferably uses thermosetting epoxy adhesive above-mentioned or thermosetting phenolic tree
Rouge adhesive is as adhesive.At this point, dosage of the described adhesive for carbon fiber is generally 1 by weight:
100-50:100, preferably 1:100-10:100, but is not limited thereto.Alternatively, the graphite powder last layer generally preferably uses
Inorganic bond above-mentioned is as adhesive.At this point, dosage of the described adhesive for powdered graphite is by weight
Generally 1:100-50:100, preferably 1:100-10:100, but is not limited thereto.In addition, if necessary, before progress
Thermosetting epoxy adhesive or thermosetting property above-mentioned are generally preferably used described in text when any laminated or its similar operations
Aerodux is referred to conventional amount used of this kind of adhesive as interfacial bonder when and makes as adhesive
With.But present invention is obviously not limited to this, technical staff can be specifically chosen according to actual needs.
According to the present invention, to the thickness of the asbestos fibre layer (including its preform), there is no particular limitation, but one
As be set as 0.3-10mm, preferably 1-5mm, but is not limited thereto, but according to the overall thickness of target asbestos base lamilate
Or the overall number of plies is specifically set.
According to the present invention, to the thickness of the carbon fiber layer (including its preform), there is no particular limitation, but general
It is set as 0.2-1mm, preferably 0.3-0.5mm, but is not limited thereto, but according to the overall thickness of target asbestos base lamilate
Or the overall number of plies is specifically set.
According to the present invention, to the thickness of the stone carbon mixed layer (including its preform), there is no particular limitation, but one
As be set as 0.3-10mm, preferably 1-5mm, but is not limited thereto, but according to the overall thickness of target asbestos base lamilate
Or the overall number of plies is specifically set.
According to the present invention, to the thickness (overall thickness) of the asbestos base lamilate, there is no particular limitation, is usually set to
1-12mm, preferably 2-6mm, but is not limited thereto, but specific setting according to actual needs.When the asbestos base lamilate
When for special-shaped shape, " thickness " is generally referred to as the thickness of dominant plane or those skilled in the art in the abnormal shape shape
The thickness that member routinely understands.
Asbestos base lamilate according to the present invention depends on its specific shape (such as plane or special-shaped shape) or places
Mode has upper and lower, inside and outside or former and later two outermost layers.It is examined from the angle for the plurality of advantages for playing graphite powder last layer to greatest extent
Consider, the asbestos base lamilate preferably with graphite powder last layer (according to its specific layer structure, it may be possible to main graphite powder last layer, can also
Can be additional graphite powder last layer) it is outermost layer, wherein more preferable two outermost layers are graphite powder last layer.Certainly, in order to store
It deposits or convenient transportation, various protective layers, such as plastic foil, peeling layer, non-drying glue layer etc. can also be added on these outermost layers.This
A little protective layers can will be easily peeled off in the asbestos base lamilate before use.In addition, from the point of view of being based on equally, such as
Asbestos base lamilate described in fruit can also pass through removing after fabrication not with graphite powder last layer for (one or two) outermost layer
Outermost mode and expose the graphite powder last layer.
Asbestos base lamilate obtained according to the present invention, when being measured referring to standard GB/T/T3985-2008,
Helium leak rate (characterizing its sealing performance) is lower than 500ml/ (hmm), and heat-resistant pressure-resistant (characterizing its heat resistance) reaches
XB510 rank, therefore the asbestos based articles (such as asbestos base gasket seal of same thickness) for the prior art that can match in excellence or beauty completely.
For the asbestos base lamilate when referring to standard GB/T/T20671.10-2006 measurement, thermal coefficient (characterizes its thermal insulation
Can) it is roughly the same with the prior art asbestos base gasket seal of same thickness compared with or slightly raising, such as generally 1.0 to
1.3 times or so, but lower numerical value is still fallen within, therefore there is no significantly reduce on year-on-year basis for its heat-proof quality.Moreover, with the present invention
(referring to stone carbon mixed layer or asbestos fibre layer) containing asbestos layer is in the layer knot of entire asbestos base lamilate in asbestos base lamilate
Relative thickness in structure reduces (for example being substituted by the carbon fiber layer of respective thickness or graphite powder last layer etc.), laminated with the asbestos base
Body is only compared this containing hypothesis situation made of asbestos layer, and asbestos dosage is i.e. corresponding to be reduced.For example, at this containing asbestos layer
When thickness (or multiple overall thickness) accounts for the half of asbestos base lamilate general thickness, i.e., accordingly reduce half (50wt%)
Asbestos dosage accounts for the one third of asbestos base lamilate general thickness in the thickness (or multiple overall thickness) containing asbestos layer
When, i.e., accordingly reduce the asbestos dosage of 2/3rds (about 67wt%), in thickness (or multiple total thickness containing asbestos layer
Degree) when accounting for 1/5th of asbestos base lamilate general thickness, i.e., accordingly reduce the asbestos dosage of 4/5ths (80wt%).
In addition, asbestos base lamilate according to the present invention, it is described containing asbestos layer always by carbon fiber layer or graphite powder last layer entirety (from
Two sides) cladding, thus significantly suppressing this, outwardly environment is exposed or is distributed containing the asbestos (dust) in asbestos layer.As a result
It is that the emission of asbestos base lamilate asbestos dust during manufacture and use of the invention is very small, complies with completely
Current increasingly strict environmental protection/labour protection requirement.
Asbestos base lamilate according to the present invention, using graphite powder last layer as (one or two) outermost layer with it is to be sealed
When face contact, can give full play to self-lubrication excellent possessed by powdered graphite (especially expanded graphite powder) itself and
Resilience performance, thus, it is possible to bear biggish thermal stress on the face to be sealed/pressing force variation.In general, referring to country
When standard GB/T3985-2008 is measured, the compression ratio of the asbestos base lamilate is up to 20% or more, and rebound degree is up to 55%
More than.
Asbestos base lamilate according to the present invention, by using carbon fiber as compatilizer, increase asbestos (fiber) with
The affinity of powdered graphite, compared with the case where not using carbon fiber, anti-peeling and mechanical strength (such as referring to national standard
The transverse tensile strength of GB/T3985-2008 measurement) it significantly improves.
According to the present invention, the anti-peeling measures as follows.
The sample that 50mm × 50mm is cut from manufactured asbestos base lamilate (any thickness), sample is lain in clean
On net glass plate.Then, it by sample together with glass plate, is put into temperature and is adjusted in 450 ± 2 DEG C of constant temperature oven, add
After hot 0.5h, sample is removed from glass plate, immediately the surface on two surfaces and glass plate up and down of visual observations sample.If
Remove, fall off occur in the graphite powder last layer on a certain surface of sample, fragmentation, breakage or cracking etc. extremely or the surface of glass plate
On there is powdered graphite to leave or be scattered, that is, determine the asbestos base lamilate anti-peeling be it is unqualified；These are not observed
Phenomenon determines that the anti-peeling of the asbestos base lamilate is qualification.
A further embodiment according to the present invention further relates to asbestos base lamilate above-mentioned or according to above-mentioned
Application of the asbestos base lamilate of manufacturing method manufacture as gasket seal, especially as answering for high temperature resistant (quiet) gasket seal
With.
Specifically, the present invention relates to a kind of encapsulating method (such as refractory seals method, especially high temperature resistant static seals
Method), this method includes the asbestos base lamilate for making asbestos base lamilate above-mentioned or manufacturing according to manufacturing method above-mentioned
The step of as gasket seal and face contact to be sealed.
According to the present invention, in order to play asbestos base lamilate of the present invention to the maximum extent the advantages of, preferably makes described to close
Cover is directly contacted with the graphite powder last layer of the asbestos base lamilate.At this point, as previously mentioned, the graphite powder last layer can be
The i.e. outermost layer that has after asbestos base lamilate manufacture is also possible to expose by removing the modes such as other outermost layers,
Or the two has concurrently.
According to the present invention, the face to be sealed can be one, be also possible to multiple (such as two), and (simultaneously) with
Asbestos base lamilate (clearly outermost layer) of the invention directly contacts.Most preferably, these faces to be sealed with the present invention
The graphite powder last layer of asbestos base lamilate directly contacts.At this point, as previously mentioned, these graphite powder last layer can be the asbestos base
The outermost layer having after zoarium manufacture, is also possible to simultaneous by removing the modes such as other outermost layers expose or the two
Have.
Encapsulating method according to the present invention, by using the asbestos base lamilate as gasket seal, show with
While the asbestos base gasket seal of the prior art is compared to comparable sealing performance, heat resistance and heat-proof quality, substantially reduce
The emission of asbestos dust, and it is able to bear biggish thermal stress on face to be sealed/pressing force variation.
The present invention is further detailed below in conjunction with attached drawing.These attached drawings are using gasket seal as asbestos of the present invention
The specific example of base's zoarium, but present invention is obviously not limited to this.
According to Fig. 1, which is planar, and vertical section is rectangle, and including 1 asbestos fibre layer 3,
2 carbon fiber layer 2 and 2 graphite powder last layer 1 of 3 uper side surface of asbestos fibre layer successively alternately laminated, and in the asbestos
2 carbon fiber layer 2 and 2 graphite powder last layer 1 of 3 downside surface of fibrous layer successively alternately laminated.When in use, the gasket seal
(most) upper and lower surface directly contacted with face to be sealed.According to the Fig. 1, carbon fiber layer 2 and graphite powder last layer 1 are arranged alternately,
It is such as combined by adhesive or pressing pressure between each layer.In Fig. 1, the asbestos fibre layer 3 is located at innermost layer, the stone
Ink powder last layer 1 is located at outermost layer.
It according to fig. 2, is the variation of Fig. 1 gasket seal.The gasket seal is special-shaped shape, and vertical section is L-type.
According to Fig. 3, which is planar, and vertical section is rectangle, and including 1 stone carbon mixed layer 3,
3 uper side surface of stone carbon mixed layer successively laminated 1 layer of metal tooth plate 2 and 1 graphite powder last layer 1, and mixed in the stone carbon
3 downside surface of layer successively laminated 1 layer of metal tooth plate 2 and 1 graphite powder last layer 1.When in use, on (most) of the gasket seal
Lower surface is directly contacted with face to be sealed.At this point, the stone carbon mixed layer 3 is located at innermost layer, the graphite powder last layer 1 is located at
Outermost layer.
Embodiment
The present invention is illustrated using embodiment in further detail below, however, the present invention is not limited to these examples.
Performance parameter in embodiment and comparative example measures in accordance with the following methods.
[helium leak rate]
Embodiment or the helium leak rate of the asbestos base lamilate of comparative example manufacture are referring to standard GB/T/T3985-2008
Measurement.
[heat-resistant pressure-resistant]
Embodiment or the heat-resistant pressure-resistant of the asbestos base lamilate of comparative example manufacture are referring to standard GB/T/T3985-2008
Measurement.
[compression ratio]
Embodiment or the compression ratio of the asbestos base lamilate of comparative example manufacture are surveyed referring to standard GB/T/T3985-2008
Amount.
[rebound degree]
The rebound degree of embodiment or the asbestos base lamilate of comparative example manufacture is surveyed referring to standard GB/T/T3985-2008
Amount.
[transverse tensile strength]
The transverse tensile strength of embodiment or the asbestos base lamilate of comparative example manufacture is referring to standard GB/T/T3985-
2008 measurements.
[thermal coefficient]
The thermal coefficient of embodiment or the asbestos base lamilate of comparative example manufacture is referring to standard GB/T/T20671.10-
2006 measurements.
[anti-peeling]
The anti-peeling of embodiment or the asbestos base lamilate of comparative example manufacture measures in accordance with the following methods.
The sample that 50mm × 50mm is cut from the asbestos base lamilate that embodiment or comparative example manufacture, sample is lain in
On clean glass plate.Then, it by sample together with glass plate, is put into temperature and is adjusted in 450 ± 2 DEG C of constant temperature oven,
After heating 0.5h, sample is removed from glass plate, immediately the surface on two surfaces and glass plate up and down of visual observations sample.Such as
Remove, fall off occur in the graphite powder last layer on a certain surface of fruit sample, fragmentation, breakage or cracking etc. extremely or the table of glass plate
There is powdered graphite to leave or be scattered on face, that is, determines that the anti-peeling of the asbestos base lamilate is unqualified；This is not observed
A little phenomenons determine that the anti-peeling of the asbestos base lamilate is qualification.
Embodiment 1
The asbestos base gasket seal of structure shown in Fig. 2 is manufactured according to the following steps.
1) using asbestos fibre/rubber clad plate of plate shearing machine clip proper width, (1.0mm is thick, and Hebei henry reaches sealing material
Expect the XB450 of Co., Ltd's production), cut carbon cloth (0.3mm thickness, the toray T400HB-6000- of same widths
40D), each blank beam overall is greater than L-type cross-sectional length；
2) flanging is carried out to asbestos fibre/rubber clad plate according to shown in Fig. 2 using folding brake, suppresses locating groove；
3) high-temperature-resistant adhesive (THC-400 type thermostable phenolic resin adhesive) is uniformly painted on asbestos fibre respectively
Dimension/rubber clad plate upper surface and a surface of carbon cloth；
4) it is aligned and is bonded asbestos fibre/rubber clad plate and carbon cloth, keep its respective coating adhesive surface opposite,
And it is using folding brake that the two is compressed together, form the 1st carbon fiber layer；
5) lamilate obtained is put into heat pressing forming machines, in 120 DEG C of heating temperature, pressure 5MPa and molding time
Under conditions of 10min, make the lamilate hot setting；
6) make expanded graphite powder (HD32 of Qingdao Nan Shu hongda graphite product Co., Ltd production) and silicate inorganic
Adhesive (WJZ101 of Machinery Research Institute, Hunan Province production, dosage account for the 3wt% of expanded graphite powder) uniformly mixing, is in layer
Uniformly divide to the surface of the 1st carbon fiber layer to shape；
7) the graphite powder last layer is suppressed using folding brake, pressure 2MPa forms the 1st powdered graphite with a thickness of 0.5mm
Layer；
8) high-temperature-resistant adhesive (THC-400 type thermostable phenolic resin adhesive) is uniformly painted on powdered graphite respectively
The upper surface of layer and a surface of the carbon cloth in addition prepared according to step 1)；
9) it is aligned and is bonded graphite powder last layer and carbon cloth, keep its respective coating adhesive surface opposite, and using folding
Side machine is compressed together by the two, forms the 2nd carbon fiber layer；
10) lamilate obtained is put into heat pressing forming machines, in 120 DEG C of heating temperature, pressure 5MPa and molding time
Under conditions of 10min, make the lamilate hot setting；
11) make expanded graphite powder (HD32 of Qingdao Nan Shu hongda graphite product Co., Ltd production) and silicate inorganic
Adhesive (WJZ101 of Machinery Research Institute, Hunan Province production, dosage account for the 3wt% of expanded graphite powder) uniformly mixing, is in layer
Uniformly divide to the surface of the 2nd carbon fiber layer to shape；
12) the graphite powder last layer is suppressed using folding brake, pressure 2MPa forms the 2nd powdered graphite with a thickness of 0.5mm
Layer；
13) operation of step 3) to step 12) is repeated, in asbestos fibre/rubber clad plate lower surface successively alternating layer
Two carbon fiber layers and two graphite powder last layer are closed, gasket seal blank is obtained；
14) the gasket seal blank is suppressed using hydraulic press, 20min is kept at pressure 5MPa first, then in pressure
5min is kept under 8MPa；
15) solidified in high-temperature molding machine, 200 DEG C of heating temperature, thus pressure 8MPa, molding time 5min are obtained
Obtain asbestos base gasket seal of the invention.
Through measuring, the helium leak rate of the asbestos base gasket seal is 100mL/ (h.mm), and heat-resistant pressure-resistant reaches XB510
Rank, compression ratio 21%, rebound degree 60%, transverse tensile strength 29MPa, anti-peeling are qualification, and thermal coefficient is
0.065W/ (m.K).
Embodiment 2
The asbestos base gasket seal of structure shown in Fig. 3 is manufactured according to the following steps.
1. making stone carbon mixed layer
By 15 parts by weight asbestos fibres, (the 5-70 grade asbestos of the sensible sealing material Co., Ltd production in Dacheng County, accord with 1-1.
Close GB/T8071-2001) and 5 parts by weight of carbon fibers (length 10-30mm, the general carbon fiber of T400 of toray company manufacture)
KH550 silane coupling agent is respectively adopted and carries out impregnation, then respectively drying, shredding；
1-2.20 part by weight of liquid nitrile rubber (X730 that Dezhou preferably reaches the production of commerce and trade Co., Ltd) is in 10 parts by weight second
After being dissolved in acetoacetic ester, 20 weight parts of calcium carbonate fillers and suitable vulcanizing agent and vulcanization accelerator is added, then mixes to equal
It is even, obtain rubber mixture；
The asbestos fibre and carbon fiber that handle by step 1-1 are added in the rubber mixture 1-3., are stirred, stir
Mix revolving speed 150r/min, mixing time 15min；
1-4. calendering formation on Cheng Zhangji by the mixing after stirring, roller differential surface speed 1.0~1.2, temperature 120 ± 20
DEG C, roll time 10min；
First temperature-pressure vulcanizes 1-5. calendered products obtained on vulcanizing press, and 130 DEG C of curing temperature, vulcanization pressure
Power 15MPa, vulcanization time 30min.Then vulcanized using baking oven, 150 DEG C of curing temperature, vulcanization time 40min；
1-6. is finally heat-treated, and 100 DEG C of heating temperature, heat treatment time for 24 hours, finally obtains stone carbon mixed layer.
2. laminated metal tooth plate and graphite powder last layer
2-1. make the expanded graphite powder HD32 of production (Qingdao Nan Shu hongda graphite product Co., Ltd) and silicate without
Machine adhesive (WJZ101 of Machinery Research Institute, Hunan Province production, dosage account for the 3wt% of expanded graphite powder) uniformly mixes, and is in
It layeredly uniformly divides to a surface of metal tooth plate (thickness 0.5mm), is suppressed at pressure 5MPa, to form thickness
For the graphite powder last layer of 2mm, composite layer is obtained；
Two composite layers according to step 2-1 manufacture are used resistance to height with the stone carbon mixed layer manufactured according to step 1 by 2-2.
Warm adhesive (THC-400 type thermostable phenolic resin adhesive) is bonded according to structure shown in Fig. 3 from two sides respectively, so
The whole compression moulding in high-temperature thermo-compression formation machine afterwards, 200 DEG C of heating temperature, thus pressure 8MPa, molding time 30min are obtained
Obtain asbestos base gasket seal of the invention.
Through measuring, the helium leak rate of the asbestos base gasket seal is 60mL/ (h.mm), and heat-resistant pressure-resistant reaches XB510
Rank, compression ratio 35%, rebound degree 60%, transverse tensile strength 36MPa, anti-peeling are qualification, and thermal coefficient is
0.062W/ (m.K).
Reference example 1
1) using asbestos fibre/rubber clad plate of plate shearing machine clip proper width, (1.5mm is thick, and Hebei henry reaches sealing material
Expect the XB450 of Co., Ltd's production) 1 piece, and cut the carbon cloths of same widths (0.3mm is thick, toray T400HB-
6000-40D) 2；
2) 2 carbon cloths are passed through into high-temperature-resistant adhesive (THC-400 type thermostable phenolic resin adhesive) respectively
It is bonded in asbestos fibre/rubber clad plate two sides, then in 120 DEG C of heating temperature, pressure in high-temperature thermo-compression formation machine
Hot setting is carried out under conditions of 5MPa and molding time 10min, forms the laminated complex for having carbon fiber layer in two sides；
3) make expanded graphite powder (HD32 of Qingdao Nan Shu hongda graphite product Co., Ltd production) and silicate inorganic
Adhesive (WJZ101 of Machinery Research Institute, Hunan Province production, dosage account for the 3wt% of expanded graphite powder) uniformly mixing, is being pressed
It is suppressed, is obtained with a thickness of 0.5mm, width and the identical graphite powder last layer of carbon cloth under power 5MPa；
4) the graphite powder last layer that 2 steps 3) obtain is passed through into high-temperature-resistant adhesive (THC-400 type high temperature resistance phenolic aldehyde respectively
Resin binder) be bonded in step 2) acquisition complex carbon fiber layer two sides；With
5) whole compression moulding and solidify, 200 DEG C of heating temperature, pressure 8MPa in high-temperature thermo-compression formation machine, when molding
Between 30min, thus to obtain asbestos base gasket seal of the invention.
Through measuring, the helium leak rate of the asbestos base gasket seal is 100mL/ (h.mm), and heat-resistant pressure-resistant reaches XB510
Rank, compression ratio 22%, rebound degree 59%, transverse tensile strength 30MPa, anti-peeling are qualification, and thermal coefficient is
0.070W/ (m.K).
As a comparison, prior art asbestos base gasket seal (thickness 3.1mm, by directly cutting Hebei henry up to sealing material
Material Co., Ltd production XB450 and obtain) helium leak rate be 400mL/ (h.mm), heat-resistant pressure-resistant is poor, only reaches
XB450 rank, compression ratio is lower, is 18%, and rebound degree is lower, is 47%, and thermal coefficient is lower, is 0.062W/ (m.K).With
The asbestos base gasket seal of the prior art is compared, and the asbestos dosage of 1 asbestos base gasket seal of reference example saves approximately half of.
Although a specific embodiment of the invention is described in detail above in conjunction with the embodiments, need to refer to
Out, the scope of protection of the present invention is not limited by these specific embodiments, but by claims of annex Lai
It determines.Those skilled in the art can carry out these embodiments in the range of not departing from technical idea and purport of the invention
Change appropriate, and the embodiment after these changes is obviously also included within protection scope of the present invention.
Claims (22)
1. a kind of asbestos base lamilate, which is characterized in that including asbestos fibre-carbon fiber composite bed and be located at the asbestos fibre
Graphite powder last layer on dimension-carbon fiber composite bed one or both sides；Wherein carbon fiber is as compatilizer, with improve asbestos fibre with
The affinity of powdered graphite.
2. asbestos base lamilate described in accordance with the claim 1, wherein the powdered graphite layer is expanded graphite powder layer.
3. asbestos base lamilate described in accordance with the claim 1, wherein in the asbestos fibre-carbon fiber composite bed and the stone
It further include metal tooth plate or metal otter board between ink powder last layer.
4. according to the described in any item asbestos base lamilates of claims 1 to 3, wherein also further in the graphite powder last layer
There are n carbon fiber-containing layers and n additional graphite powder last layer, and wherein n is the arbitrary integer between 1 to 100, and the n is a
Carbon fiber-containing layer and n additional graphite powder last layer exist in an alternating manner, and the carbon fiber-containing layer choosing from carbon fiber layer,
Asbestos fibre-carbon fiber composite bed or at least one described carbon fiber layer and asbestos fibre-carbon fiber described at least one are multiple
Close the lamilate of layer.
5. asbestos base lamilate according to claim 4, wherein the additional graphite powder last layer is expanded graphite powder
Layer.
6. asbestos base lamilate according to claim 4, wherein n is the arbitrary integer between 1 to 10.
7. according to the described in any item asbestos base lamilates of claims 1 to 3, wherein the asbestos fibre-carbon fiber composite bed
Be the mixed layer of asbestos fibre and carbon fiber, at least one asbestos fibre layer and at least one carbon fiber layer lamilate or
The lamilate of at least one mixed layer and at least one lamilate.
8. asbestos base lamilate according to claim 7, wherein being pressed in the mixed layer of the asbestos fibre and carbon fiber
According to poidometer, the ratio of the asbestos fibre and the carbon fiber is 100: 10-100: 1.
9. asbestos base lamilate according to claim 7, wherein the mixed layer of the asbestos fibre and carbon fiber at least wraps
Containing asbestos fibre, carbon fiber and adhesive.
10. asbestos base lamilate according to claim 4 the, wherein asbestos fibre-carbon fiber composite bed is asbestos fibre
Dimension and the lamilate of the mixed layer of carbon fiber, at least one asbestos fibre layer and at least one carbon fiber layer or at least one
The lamilate of the mixed layer and at least one lamilate.
11. asbestos base lamilate according to claim 7, wherein each asbestos fibre layer with a thickness of 0.3-
10mm, each carbon fiber layer with a thickness of 0.2-1mm, each graphite powder last layer with a thickness of 0.2-2mm, Mei Gesuo
State mixed layer with a thickness of 0.3-10mm, and each metal tooth plate or metal otter board with a thickness of 0.2-2mm.
12. asbestos base lamilate according to claim 7, wherein each asbestos fibre layer with a thickness of 1-5mm, often
A carbon fiber layer with a thickness of 0.3-0.5mm, each graphite powder last layer with a thickness of 0.5-1mm, it is each described mixed
Close layer with a thickness of 1-5mm, and each metal tooth plate or metal otter board with a thickness of 0.3-0.5mm.
13. a kind of manufacturing method of asbestos base lamilate, which is characterized in that including to asbestos fibre-carbon fiber composite bed one
It optionally further include in the asbestos fibre-carbon fiber composite bed and the stone on side or two sides the step of laminated powdered graphite layer
The step of metal tooth plate or metal otter board are introduced between ink powder last layer；Wherein carbon fiber is as compatilizer, to improve asbestos fibre
With the affinity of powdered graphite.
14. manufacturing method according to claim 13, wherein the powdered graphite layer is expanded graphite powder layer.
15. manufacturing method according to claim 13, wherein also further laminated n is a carbon containing in the graphite powder last layer
Fibrous layer and n additional graphite powder last layer, wherein n is the arbitrary integer between 1 to 100, the n carbon fiber-containing layer with
N additional graphite powder last layer are laminated in an alternating manner, and the carbon fiber-containing layer choosing is from carbon fiber layer, asbestos fibre-carbon
Fiber composite or at least one described carbon fiber layer and asbestos fibre-carbon fiber composite bed described at least one are laminated
Body.
16. manufacturing method according to claim 15, wherein the additional graphite powder last layer is expanded graphite powder layer.
17. manufacturing method according to claim 15, wherein n is the arbitrary integer between 1 to 10.
18. according to manufacturing method described in claim 13,14 or 15, wherein the asbestos fibre-carbon fiber composite bed is stone
The mixed layer of cotton fiber and carbon fiber, the lamilate of at least one asbestos fibre layer and at least one carbon fiber layer or at least
The lamilate of one mixed layer and at least one lamilate.
19. manufacturing method according to claim 18, wherein in the mixed layer of the asbestos fibre and carbon fiber, according to
The ratio of poidometer, the asbestos fibre and the carbon fiber is 100: 10-100: 1.
20. manufacturing method according to claim 18, wherein the mixed layer of the asbestos fibre and carbon fiber includes at least
Asbestos fibre, carbon fiber and adhesive.
21. according to the described in any item asbestos base lamilates of claim 1 to 12 or according to any one of claim 13 to 20
Application of the asbestos base lamilate of the manufacturing method manufacture as gasket seal.
22. a kind of encapsulating method, including will be according to the described in any item asbestos base lamilates of claim 1 to 12 or according to power
Benefit requires the asbestos base lamilate of 13 to 20 described in any item manufacturing method manufactures as gasket seal and face contact to be sealed
The step of.
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| CN201410025334.4A CN104786575B (en) | 2014-01-17 | 2014-01-17 | A kind of asbestos base lamilate, its manufacturing method and its application |
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| CN108953608B (en) * | 2018-08-24 | 2021-02-26 | 灏印(宁波)波纹管技术有限公司 | Graphite-based composite sealing element and preparation method thereof |
| CN114316571A (en) * | 2022-01-07 | 2022-04-12 | 山东跃华新材料有限公司 | Modified carbon fiber high-strength composite material and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2038577U (en) * | 1988-03-14 | 1989-05-31 | 地方国营浙江慈溪密封材料厂 | Compound spacer between relatively fixed surface |
| CN102212331A (en) * | 2011-04-06 | 2011-10-12 | 中国制浆造纸研究院 | Asbestos fiber or non-asbestos fiber composite sealing material |
-
2014
- 2014-01-17 CN CN201410025334.4A patent/CN104786575B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2038577U (en) * | 1988-03-14 | 1989-05-31 | 地方国营浙江慈溪密封材料厂 | Compound spacer between relatively fixed surface |
| CN102212331A (en) * | 2011-04-06 | 2011-10-12 | 中国制浆造纸研究院 | Asbestos fiber or non-asbestos fiber composite sealing material |
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