CN206326878U - Carbon/carbon compound material blank forming mould based on carbon fiber powder - Google Patents
Carbon/carbon compound material blank forming mould based on carbon fiber powder Download PDFInfo
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- CN206326878U CN206326878U CN201621400611.6U CN201621400611U CN206326878U CN 206326878 U CN206326878 U CN 206326878U CN 201621400611 U CN201621400611 U CN 201621400611U CN 206326878 U CN206326878 U CN 206326878U
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Abstract
The utility model discloses a kind of without the hot-forming carbon/carbon compound material blank forming mould based on carbon fiber powder; it includes formpiston, former; it is characterized in that the former or formpiston are provided with charging aperture; gland is installed on charging aperture or gland is not installed, the cavity between the formpiston, former is carbon/carbon compound material blank shape；The base substrate of some strength is made up using carbon fiber powder of mould for the utility model, base substrate reduces the consumption of raw material, greatly reduces amount of machining close to the size of finished product, also subsequent chemistry vapor deposition times and deposition cost are greatly reduced, labor productivity is substantially increased；Also, due to need not carry out acupuncture, it is to avoid product surface produces pin hole, the surface smoothness of product is greatly improved；As long as simultaneously as die-filling solidification, without hot-forming, also reduces the cost of manufacture of carbon/carbon compound material base substrate.
Description
Technical field
The utility model is related to a kind of carbon/carbon compound material, specifically a kind of carbon/carbon compound material base substrate and shaping
Mould, it is more particularly to a kind of without the hot-forming carbon/carbon compound material blank forming mould based on carbon fiber powder.
Background technology
Carbon/carbon compound material is carbon fiber and pyrolysis carbon composite, is led with low-density and high-strength, high ratio modulus, height
The advantages of hot, low-expansion coefficient, frictional behaviour are good, and thermal shock resistance is good, dimensional stability is high, is most to have before development
One of the high-temperature material on way.Carbon/carbon compound material is widely used to Aero-Space, automobile work due to its unique performance
The fields such as industry, medical science aspect.At present, its preparation method generally comprises 1. precast body preparation, the net that will be made by long carbon fiber
Tire and/or carbon cloth are according to the shape acupuncture that need to be prepared into base substrate；2. densification, i.e., pass through chemical vapor infiltration by base substrate
（Deposition）And/or liquid impregnation density obtains carbon/carbon compound material product.This method is applied in actual production, and skill
Art is more ripe, still, and this method has preparation technology complexity, particularly to complex-shaped shaped piece, precast body
Blank needs single-piece, pure manual production, and production efficiency is low, and shape is unstable, in addition it is also necessary to which multiple chemical is vapor-deposited, and repeatedly adds
Work, causes cost to remain high, strongly limit the application of carbon/carbon compound material.
Number of patent application is 201510298290.7, entitled high-speed railway EMUs pantograph pan composite wood
The patent application of material and preparation method thereof discloses a kind of chopped carbon fiber of weighing in proportion, phenol-formaldehyde resin powder, pitch coke powder, squama
Piece graphite powder, copper powder, pour into compressing in mould pressing die after alleged content of starting materials is well mixed, base substrate is successively put into Muffle furnace
Middle progress pre-oxidation treatment, it is put into carbide furnace and carries out carbonization treatment, is put into isothermal chemical vapor deposition stove and is densified
Handle, be put into high temperature graphitization treatment furnace and carry out graphitization processing, that is, obtain pantograph pan composite, gained is answered
Condensation material, which is processed, obtains carbon/carbon compound material pantograph pan.When compressing in mould pressing die, its concrete technology
Parameter is as follows：Temperature：120~200 DEG C；Pressure：1~5MPa；Dwell time：2~5h., it is necessary to heat when being molded due to this method
Pressure device is hot-forming, particularly when making large-sized product, it is necessary to great tonnage press, the shape as crucible, guide shell
The complicated product of shape can not be suppressed, therefore, and it is using limited.
The content of the invention
The purpose of this utility model is to provide a kind of without the hot-forming carbon/carbon compound material base based on carbon fiber powder
Forming die.
The utility model, which is adopted the following technical scheme that, realizes its goal of the invention, a kind of carbon/carbon based on carbon fiber powder
Composite body mould, it includes formpiston, former, and the former or formpiston are provided with charging aperture, charging aperture and installed
There is gland or gland is not installed, the cavity between the formpiston, former is carbon/carbon compound material blank shape.
Flexible silicon gum cover is cased with formpiston or former described in the utility model, between flexible silicon gum cover and former or formpiston
Cavity is carbon/carbon compound material blank shape, and the die cavity between flexible silicon gum cover and formpiston or former is pressurizing chamber, formpiston or the moon
The working hole for being pressurizeed to pressurizing chamber is offered on mould.
To make the gas between formpiston or former and flexible silicon gum cover pass in and out smooth, formpiston or former described in the utility model
The upper surface for being close to side with elastic silica gel set is provided with guide groove.
For convenience, described in the utility model be pressurised into pressurizing chamber inflates pressurization, Huo Zhejia by working hole to pressurizing chamber
Enter water or add alcohol.
Due to using above-mentioned technical proposal, the utility model preferably realizes goal of the invention, is made up necessarily of mould
The base substrate of intensity, base substrate reduces the consumption of raw material close to the size of finished product, greatly reduces amount of machining, also subtracts significantly
Lack subsequent chemistry vapor deposition times and deposition cost, substantially increase labor productivity；Also, due to the hand-manipulating of needle need not be entered
Thorn, it is to avoid product surface produces pin hole, the surface smoothness of product is greatly improved；If simultaneously as die-filling solidification, without
It is hot-forming, also reduce the cost of manufacture of carbon/carbon compound material base substrate.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment 1；
Fig. 2 is the structural representation of the utility model embodiment 2；
Fig. 3 is the structural representation of the carbon/carbon compound material base substrate made by the utility model embodiment 2；
Fig. 4 is the structural representation of the utility model embodiment 3；
Fig. 5 is the structural representation of the utility model embodiment 4；
Fig. 6 is the structural representation of the utility model embodiment 5；
Fig. 7 is the structural representation of the utility model embodiment 6.
Embodiment
Below in conjunction with the accompanying drawings and embodiment the utility model is described in further detail.
Embodiment 1：
As shown in Figure 1, a kind of carbon/carbon compound material blank forming mould based on carbon fiber powder, it includes formpiston 1, the moon
Mould 2, the former 2 or formpiston 1, which are provided with, to be provided with gland 7 on charging aperture 6, charging aperture 6 or does not install gland 7, the formpiston
1st, the cavity 3 between former 2 is carbon/carbon compound material blank shape.
The present embodiment is exemplified by preparing carbon/carbon compound material sheet-shaped blank, by weight, takes carbon fiber powder, thermosetting tree
Fat, graphite powder, curing agent, flow promortor, each component sum are 100 ﹪, and the granularity of the carbon fiber powder is 200 mesh, the heat
Thermosetting resin is phenolic resin, and the graphite powder was the crystalline flake graphite of 800 mesh sieves, and the curing agent is hexamethylenetetramine,
The flow promortor is aerosil；After above-mentioned raw materials are mixed, tumbling ball mill ball milling is put into 3 hours, to improve
The surface smoothness of base substrate, makes base substrate material more uniform.
Because base substrate is tabular, the opening of the present embodiment former 2 is charging aperture 6.Raw material after ball milling is poured into former
2, jolt ramming reaches after size requirement, covers formpiston 1；Mould is placed in 250 DEG C, solidified 2 hours；Be prepared into 800 ㎜ ×
The square sheet-shaped blank of ㎜ carbon/carbon compound materials of 800 ㎜ × 15, the density of prepared base substrate is 0.72g/ ㎝3, intensity meets work
Sequence circulation is required.
Then, by the base substrate of preparation through chemical vapor deposition, machining, be prepared into 800 after chemical vapor deposition again
The square board product of ㎜ carbon/carbon compound materials of the ㎜ of ㎜ × 800 × 15, its extrudate density is 1.26g/ ㎝3, intensity is 43MPa.
The utility model preferably realizes goal of the invention, and the base substrate of some strength is made up of mould, and base substrate is approached into
The size of product, reduces the consumption of raw material, greatly reduces amount of machining, when also greatly reducing subsequent chemistry vapour deposition
Between and deposition cost, substantially increase labor productivity；Also, due to acupuncture need not be carried out, it is to avoid product surface generation
Pin hole, the surface smoothness of product is greatly improved；As long as simultaneously as die-filling solidification, without hot-forming, also reduce carbon/
The cost of manufacture of carbon composite base substrate.
Embodiment 2：
From Fig. 2, Fig. 3, because base substrate is annulus tabular, the opening of the present embodiment former 2 is charging aperture 6.By ball
Raw material after mill pours into former 2, and jolt ramming reaches after size requirement, covers formpiston 1；Mould is placed in 250 DEG C, solidification 2 is small
When；Annulus tabular carbon/carbon compound material base substrate is prepared into, the density of prepared base substrate is 0.71g/ ㎝3, intensity meets work
Sequence circulation requires, to base substrate through chemical vapor deposition, machining, be after chemical vapor deposition again be prepared into annulus tabular carbon/
Carbon composite article, its extrudate density is 1.25g/ ㎝3, intensity is 44MPa.The relatively conventional square sheet material of making first,
Then ring-type is reprocessed into, the utility model greatly reduces production cost, improves production efficiency.
Remaining be the same as Example 1.
Embodiment 3：
As shown in Figure 4, the present embodiment is to prepare carbon/carbon composite material crucible base substrate.Formed between formpiston 1 and former 2 into
Material mouth 6.Raw material after ball milling is poured into charging aperture 6, jolt ramming reaches after size requirement, covers gland 7；Then, by mould
280 DEG C are placed in, is solidified 1.5 hours；Be prepared into the ㎜ of Ф 616 carbon/carbon composite material crucible base substrate, prepared base substrate it is close
Spend for 0.73g/ ㎝3, intensity meet process circulation requirement.By the base substrate of preparation through chemical vapor deposition, again machining, chemistry
The ㎜ of Ф 616 carbon/carbon composite material crucible product is prepared into after vapour deposition, its extrudate density is 1.28g/ ㎝3, intensity is
50MPa。
Remaining be the same as Example 1.
Embodiment 4：
As shown in Figure 5, the present embodiment is to prepare carbon/carbon compound material inner pan of electric cooker base substrate.Former 2 is arranged on formpiston 1
On, the cavity 3 between formpiston 1, former 2 is for inner pan of electric cooker blank shape and in Open Side Down, and former 2 is provided with charging aperture 6,
Gland 7 is installed on charging aperture 6.Raw material after mixing is poured into cavity 3, jolt ramming reaches after size requirement, covers gland 7, then
The mould openings for installing material and having locked are placed upward；Then, mould is placed in 200 DEG C, solidified 4 hours；Prepare
The ㎜ inner pan of electric cooker base substrates of Ф 240 are obtained, the density of prepared base substrate is 0.72g/ ㎝3, intensity meet process circulation requirement.
By the inner pan of electric cooker base substrate of preparation through chemical vapor deposition, machining, prepare after chemical vapor deposition again
The ㎜ of Ф 240 carbon/carbon compound material inner pan of electric cooker product is obtained, its extrudate density is 1.26g/ ㎝3, intensity is 43MPa.
Remaining be the same as Example 1.
Embodiment 5：
Be cased with flexible silicon gum cover 4, elastic silica gel on the density of base substrate, formpiston 1 or former 2 described in the utility model to improve
Set 4 and the cavity 3 between former 2 or formpiston 1 are carbon/carbon compound material blank shape, flexible silicon gum cover 4 and formpiston 1 or former 2
Between die cavity be pressurizing chamber, the working hole 5 for being pressurizeed to pressurizing chamber is offered on formpiston 1 or former 2.
It is smooth to pass in and out gas between formpiston 1 or former 2 and flexible silicon gum cover 4, formpiston 1 described in the utility model or
The surface for being close to side on former 2 with flexible silicon gum cover 4 is provided with guide groove.
Described in the utility model be pressurised into pressurizing chamber inflates pressurization by working hole 5 to pressurizing chamber, or add water or
Add alcohol.
It will be appreciated from fig. 6 that the present embodiment is to prepare carbon/carbon composite material crucible base substrate.Former 2 is arranged on formpiston 1, former
2 are provided with charging aperture 6, are cased with flexible silicon gum cover 4 on formpiston 1, and the cavity 3 between flexible silicon gum cover 4 and former 2 is that carbon/carbon is multiple
Condensation material blank shape, the die cavity between flexible silicon gum cover 4 and formpiston 1 is to be offered on pressurizing chamber, formpiston 1 for pressurizing chamber
The working hole 5 of pressurization, is locked between formpiston 1, former 2, flexible silicon gum cover 4.
First pass through working hole 5 to vacuumize pressurizing chamber, flexible silicon gum cover 4 is close to formpiston 1, then by the raw material after mixing from
Charging aperture 6 on former 2 is added, jolt ramming, is reached after size requirement, is covered gland 7 and lock, then will be installed material and locked
Mould openings place upward；The present embodiment adds the alcohol of certain volume by working hole 5 to pressurizing chamber, and closes valve 8.
Then, mould is placed in 240 DEG C, solidified 2.5 hours；The ㎜ of Ф 616 carbon/carbon composite material crucible base substrate is prepared into,
The density of prepared base substrate is 0.89g/ ㎝3, intensity meet process circulation requirement.Temperature during due to solidification exceedes alcohol
Vapourizing temperature, therefore, pressurizing chamber maintains the saturated vapor equivalent to 240 ° of alcohol by flexible silicon gum cover 4 to base substrate during solidification
Press 6.07MPa.
By the base substrate of preparation through chemical vapor deposition, machining, be prepared into the ㎜'s of Ф 616 after chemical vapor deposition again
Carbon/carbon composite material crucible product, its extrudate density is 1.38g/ ㎝3, intensity is 73MPa.
Remaining be the same as Example 1.
Embodiment 6：
As shown in Figure 7, the present embodiment is to prepare carbon/carbon composite material thermal insulation cylinder base substrate.Formed between formpiston 1 and former 2
Charging aperture 6.Raw material after ball milling is poured into charging aperture 6, jolt ramming reaches after size requirement, covers gland 7；Then, by shaping mould
Tool is placed in 260 DEG C, solidifies 4 hours；Carbon/carbon composite guide cylinder base substrate is prepared into, the density of prepared base substrate is
0.71g/㎝3, intensity meet process circulation requirement.By the base substrate of preparation through chemical vapor deposition, again machining, chemical gaseous phase
Carbon/carbon composite material thermal insulation cylinder product is prepared into after deposition, its extrudate density is 1.28g/ ㎝3, intensity is 56MPa
Remaining be the same as Example 1.
The utility model changes the different shape of formpiston 1 and former 2 and combined, it may also be used for the system of other thermal field components
It is standby, such as guide shell, electrode and other carbon/carbon compound material base substrates etc..
Claims (4)
1. a kind of carbon/carbon compound material blank forming mould based on carbon fiber powder, it includes formpiston, former, it is characterized in that institute
State former or formpiston is provided with and is provided with gland on charging aperture, charging aperture or does not install gland, the sky between the formpiston, former
Chamber is carbon/carbon compound material blank shape.
2. the carbon/carbon compound material blank forming mould according to claim 1 based on carbon fiber powder, it is characterized in that described
Flexible silicon gum cover is cased with formpiston or former, the cavity between flexible silicon gum cover and former or formpiston is carbon/carbon compound material base
Shape, the die cavity between flexible silicon gum cover and formpiston or former is to be offered on pressurizing chamber, formpiston or former for pressurization
The working hole of chamber pressurization.
3. the carbon/carbon compound material blank forming mould according to claim 2 based on carbon fiber powder, it is characterized in that described
The surface for being close to side on formpiston or former with elastic silica gel set is provided with guide groove.
4. the carbon/carbon compound material blank forming mould based on carbon fiber powder according to Claims 2 or 3, it is characterized in that
Described be pressurised into pressurizing chamber inflates pressurization by working hole to pressurizing chamber, or adds water or add alcohol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621400611.6U CN206326878U (en) | 2016-12-20 | 2016-12-20 | Carbon/carbon compound material blank forming mould based on carbon fiber powder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621400611.6U CN206326878U (en) | 2016-12-20 | 2016-12-20 | Carbon/carbon compound material blank forming mould based on carbon fiber powder |
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| CN206326878U true CN206326878U (en) | 2017-07-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106584892A (en) * | 2016-12-20 | 2017-04-26 | 湖南金博碳素股份有限公司 | Carbon fiber powder based carbon/carbon composite material rough-body forming mould |
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2016
- 2016-12-20 CN CN201621400611.6U patent/CN206326878U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106584892A (en) * | 2016-12-20 | 2017-04-26 | 湖南金博碳素股份有限公司 | Carbon fiber powder based carbon/carbon composite material rough-body forming mould |
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