CN106507708B - A kind of graphite crucible of manufacture C/SiC ceramic matric composite brake discs - Google Patents
A kind of graphite crucible of manufacture C/SiC ceramic matric composite brake discsInfo
- Publication number
- CN106507708B CN106507708B CN200610056327.6A CN200610056327A CN106507708B CN 106507708 B CN106507708 B CN 106507708B CN 200610056327 A CN200610056327 A CN 200610056327A CN 106507708 B CN106507708 B CN 106507708B
- Authority
- CN
- China
- Prior art keywords
- graphite crucible
- graphite
- manufacture
- ceramic matric
- brake discs
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The present invention relates to a kind of graphite crucible of manufacture C/SiC ceramic matric composite brake discs.Described graphite crucible includes graphite crucible body, offers equally distributed aperture on graphite crucible body, is coated with boron nitride (BN) coating, is equipped with graphite paper in boron nitride (BN) coating in graphite crucible body on wall.The graphite crucible long service life of the present invention, and material is easily cleared up in use, and high-temperature vacuum in-furnace temperature uniformity can be made good.The graphite crucible of the present invention can be also used for reaction melt method of impregnation and prepare other ceramic matric composites.
Description
Technical field
The present invention relates to a kind of graphite crucible, more particularly to a kind of manufacture C/SiC ceramic matric composites
The graphite crucible of brake disc.
Background technology
The manufacture method of carbon/carbon/silicon carbide ceramic matrix composite (C/SiC) brake disc is to adopt chemical vapor infiltration
Saturating method (CVI) association reaction molten liquid forming (RMI).Initially with chemical vapor infiltration (CVI) in three-dimensional
Pyrolytic carbon (C) boundary layer is deposited on needled carbon (C) fiber preform, then adjustment propylene and carrier gas
The flow-rate ratio of body and depositing temperature, realize CVI fast depositions, make carbon/carbon (C/C) porous and are combined
Material；Siliconising is melted in vacuum high temperature furnace finally by reaction melt method of impregnation (RMI) obtains carbon/carbonization
Silicon (C/SiC) friction material.At present, in RMI technical process, using traditional graphite crucible,
Be easily caused raw material and graphite crucible to react, the serious service life for reducing crucible, the manufacturing cost that increases,
Material is difficult to the problems such as clearing up；Meanwhile, because graphite crucible and raw material thermal capacity are big, and heater element is produced
The channel of raw energy transmission is limited so that in-furnace temperature uniformity is poor, it is impossible to meet brake disc batch
The requirement of production.
Content of the invention
The technical problem to be solved is to provide a kind of manufacture C/SiC ceramic matric composites brake
The graphite crucible of disk, the graphite crucible long service life, and material is easily cleared up in use, can make height
Warm the temp. in vacuum furnace uniformity is good.
For solving above-mentioned technical problem, a kind of manufacture C/SiC ceramic matric composites that the present invention is provided are stopped
The graphite crucible of hull, it include that graphite crucible body, described graphite crucible body top offer a circle
Equally distributed aperture, in graphite crucible body, surface is coated with BN coatings, is equipped with graphite in BN coatings
Paper.
The thickness of above-mentioned BN coatings is generally 0.3～0.5mm, and the thickness of graphite paper is 0.3～0.4mm.
It is an advantage of the invention that：(1) open up equally distributed aperture on graphite crucible to improve in burner hearth
The uniformity of temperature, lengthens uniform temperature zone, processes ceramic matric composite so as to quantitatively improve equipment
The ability of brake disc；(2) coat in graphite crucible boron nitride (BN) coating can prevent graphite paper with
Crucible adhesion, while preventing which from entering in graphite in material accident seepage, improves service life；(3)
After the graphite paper that lays in boron nitride (BN) coating, material not with graphite crucible directly contact, can make
Material is easily separated with crucible, is convenient to clean, and further extends the service life of graphite crucible, while contracting
The cycle of short RMI techniques.
The graphite crucible of the present invention can be also used for reaction melt method of impregnation and prepare other ceramic base composite woods
Material.
Description of the drawings
Below in conjunction with the accompanying drawings the present invention is elaborated.
Fig. 1 is the sectional view of graphite crucible of the present invention.
Fig. 2 is the top view of graphite crucible of the present invention.
In figure, 1- graphite crucible bodies, 2- boron nitride (BN) coating, 3- graphite papers, 4- apertures.
Specific embodiment
Referring to Fig. 1 and Fig. 2, manufacture carbon/carborundum (C/SiC) ceramic matric composite of the present invention is stopped
The graphite crucible of hull, it includes graphite crucible body 1, described 1 top of graphite crucible body offers-
Equally distributed aperture 4 is enclosed, the diameter of aperture 4 is generally 16～20mm, and surface applies in graphite crucible body
BN coatings 2 are covered with, and the thickness of coating 2 is generally 0.3～0.5mm, and graphite paper is laid in BN coatings
3, the thickness of graphite paper is generally 0.3～0.4mm.
Claims (2)
1. a kind of graphite crucible of manufacture C/SiC ceramic matric composite brake discs, it includes graphite crucible
Body (1), it is characterised in that：It is equally distributed little that graphite crucible body (1) top offers a circle
Hole (4), graphite crucible body (1) inner surface are coated with boron nitride coating (2), boron nitride coating upper berth
It is provided with graphite paper (3)；A diameter of 16～20mm of aperture (4).
2. the graphite earthenware of manufacture C/SiC ceramic matric composite brake discs according to claim 1
Crucible, it is characterised in that：The thickness of boron nitride coating (2) is 0.3～0.5mm, and the thickness of graphite paper is
0.3～0.4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610056327.6A CN106507708C (en) | 2006-06-22 | 2006-06-22 | A kind of graphite crucible for manufacturing C/SiC ceramic matrix composite brake disc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610056327.6A CN106507708C (en) | 2006-06-22 | 2006-06-22 | A kind of graphite crucible for manufacturing C/SiC ceramic matrix composite brake disc |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106507708B true CN106507708B (en) | 2010-03-10 |
| CN106507708C CN106507708C (en) | 2010-03-10 |
Family
ID=58264251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610056327.6A Active CN106507708C (en) | 2006-06-22 | 2006-06-22 | A kind of graphite crucible for manufacturing C/SiC ceramic matrix composite brake disc |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106507708C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107244943A (en) * | 2017-07-10 | 2017-10-13 | 巩义市泛锐熠辉复合材料有限公司 | A kind of reaction melt method of impregnation prepares the preparation method of C/C SiC ceramic matrix composite material graphite crucible face coats |
| CN112341213A (en) * | 2020-11-26 | 2021-02-09 | 西安鑫垚陶瓷复合材料有限公司 | Method for carrying out melt siliconizing on small-size circular-section ceramic matrix composite component |
| CN114455965B (en) * | 2021-12-30 | 2023-09-05 | 西安超码科技有限公司 | A composition containing alpha-Al 2 O 3 Coated C/SiC composite crucible |
-
2006
- 2006-06-22 CN CN200610056327.6A patent/CN106507708C/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107244943A (en) * | 2017-07-10 | 2017-10-13 | 巩义市泛锐熠辉复合材料有限公司 | A kind of reaction melt method of impregnation prepares the preparation method of C/C SiC ceramic matrix composite material graphite crucible face coats |
| CN112341213A (en) * | 2020-11-26 | 2021-02-09 | 西安鑫垚陶瓷复合材料有限公司 | Method for carrying out melt siliconizing on small-size circular-section ceramic matrix composite component |
| CN112341213B (en) * | 2020-11-26 | 2022-05-13 | 西安鑫垚陶瓷复合材料有限公司 | Method for carrying out melt siliconizing on small-size circular-section ceramic matrix composite component |
| CN114455965B (en) * | 2021-12-30 | 2023-09-05 | 西安超码科技有限公司 | A composition containing alpha-Al 2 O 3 Coated C/SiC composite crucible |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| DC01 | Secret patent status has been lifted |