CN108796401A - A kind of refractory ceramics based composites and preparation method thereof - Google Patents
A kind of refractory ceramics based composites and preparation method thereof Download PDFInfo
- Publication number
- CN108796401A CN108796401A CN201810719069.8A CN201810719069A CN108796401A CN 108796401 A CN108796401 A CN 108796401A CN 201810719069 A CN201810719069 A CN 201810719069A CN 108796401 A CN108796401 A CN 108796401A
- Authority
- CN
- China
- Prior art keywords
- parts
- based composites
- refractory ceramics
- ceramics based
- mixture
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
- C22C49/14—Alloys containing metallic or non-metallic fibres or filaments characterised by the fibres or filaments
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C47/00—Making alloys containing metallic or non-metallic fibres or filaments
- C22C47/14—Making alloys containing metallic or non-metallic fibres or filaments by powder metallurgy, i.e. by processing mixtures of metal powder and fibres or filaments
Abstract
A kind of refractory ceramics based composites, by weight, including following raw material：60~80 parts of clay, 10~20 parts of steel fibre, 10~20 parts of barite, 10~30 parts of carbon fiber reinforcement, 12~18 parts of zirconium dioxide, 8~16 parts of volcanic rock, 30~40 parts of zircon, 10~20 parts of diamond dust, 20~24 parts of silica flour, 1~3 part of tricalcium phosphate, 8~10 parts of titanium, 1~3 part of cobalt, 8~10 parts of aluminium；The beneficial effects of the invention are as follows diamond dust and carbon fiber reinforcement is added in the feed, to keep the heat-resisting quantity of ceramic matric composite more preferable, ceramic matric composite is prevented to be damaged after long-time use since temperature is excessively high.
Description
Technical field
The present invention relates to technical field of composite materials, and in particular to a kind of refractory ceramics based composites and its preparation side
Method.
Background technology
Composite material is that people form material component optimum organization of different nature with advanced material preparation technology
New material, the basis material of composite material is divided into metal and nonmetallic two major classes.There are commonly aluminium, magnesium, copper, titaniums for metallic matrix
And its alloy.Nonmetal basal body mainly has synthetic resin, rubber, ceramics, graphite, carbon etc.；Reinforcing material mainly have glass fibre,
Carbon fiber, boron fibre, aramid fiber, silicon carbide fibre, asbestos fibre, whisker, metal.
However traditional ceramic matric composite causes ceramic base multiple since constitutive material and preparation method are fairly simple
The high temperature resistance of condensation material is bad, and when ceramic matric composite is after long-time use, ceramic matric composite is easy to
It is damaged since temperature is excessively high.
Invention content
The purpose of the present invention is to provide a kind of refractory ceramics based composites and preparation method thereof, to solve the above-mentioned back of the body
The problem of being proposed in scape technology.
To achieve the above object, the present invention provides the following technical solutions：
A kind of refractory ceramics based composites, by weight, including following raw material：60~80 parts of clay, steel fibre 10
~20 parts, 10~20 parts of barite, 10~30 parts of carbon fiber reinforcement, 12~18 parts of zirconium dioxide, 8~16 parts of volcanic rock, zirconium
30~40 parts of diamond stone, 10~20 parts of diamond dust, 20~24 parts of silica flour, 1~3 part of tricalcium phosphate, 8~10 parts of titanium, 1~3 part of cobalt, aluminium
8~10 parts.
It is as further technical solution of the invention：By weight, including following raw material：65~75 parts of clay, steel are fine
13~17 parts of dimension, 13~17 parts of barite, 15~25 parts of carbon fiber reinforcement, 14~16 parts of zirconium dioxide, volcanic rock 10~14
Part, 32~38 parts of zircon, 13~17 parts of diamond dust, 21~23 parts of silica flour, 1~3 part of tricalcium phosphate, 8~10 parts of titanium, cobalt 1~3
Part, 8~10 parts of aluminium.
It is as further technical solution of the invention：By weight, including following raw material：70 parts of clay, steel fibre
15 parts, 15 parts of barite, 20 parts of carbon fiber reinforcement, 15 parts of zirconium dioxide, 12 parts of volcanic rock, 35 parts of zircon, diamond dust 15
Part, 22 parts of silica flour, 2 parts of tricalcium phosphate, 9 parts of titanium, 2 parts of cobalt, 9 parts of aluminium.
A kind of preparation method of refractory ceramics based composites, this approach includes the following steps：
(1) raw material is put into pulverizer and is crushed, grinding time is 20~60min, obtains the first mixture；
(2) the first mixture made from step (1) is used into 4~6h of wet ball grinding, 200 mesh sieve is crossed after drying, obtains the
Two mixtures；
(3) it will be made into the second mixture in step (2) and the water glass that quality is the second mixing body weight 2~4% be added
Glass mixes 10~30min, is then allowed to stand 8~12h, obtains third mixture；
(4) third mixture made from step (3) is sent in molding machine, the compression moulding at 60~80MPa, then will
The adobe suppressed send into dry kiln the dry dry embryo for being 3~5% to water content；
(5) dry embryo is warming up to 1160~1230 DEG C, then keeps the temperature 1~3h, then cool down with the rate of 10~16 DEG C/min
To 740~850 DEG C, 1h is kept the temperature, then is cooled to room temperature, obtains the first semi-finished product；
(6) it is polished the first semi-finished product made from step (5) using edge polisher, the polishing time is 20~40min, so
It is packed afterwards using packing machine, to obtain refractory ceramics based composites.
It is as further technical solution of the invention：The rotating speed of pulverizer is 200~300r/ in the step (1)
min。
It is as further technical solution of the invention：The solid content of waterglass is 35% in the step (3).
The beneficial effects of the invention are as follows diamond dust and carbon fiber reinforcement is added in the feed, to keep ceramic base compound
The heat-resisting quantity of material is more preferable, and ceramic matric composite is prevented to be damaged after long-time use since temperature is excessively high,
In addition it is ground again by wet ball grinding after crushed using pulverizer in preparation process, to make raw material mixing more
Uniformly, and then make the structural strength higher of ceramic matric composite.
Specific implementation mode
In the following, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
The every other embodiment that technical staff is obtained without making creative work belongs to the model that the present invention protects
It encloses.
Embodiment 1：
The refractory ceramics based composites of the present embodiment include the weight of following component：60 parts of clay, 10 parts of steel fibre,
10 parts of barite, 10 parts of carbon fiber reinforcement, 12 parts of zirconium dioxide, 8 parts of volcanic rock, 30 parts of zircon, 10 parts of diamond dust, silica flour
20 parts, 1 part of tricalcium phosphate, 8 parts of titanium, 1 part of cobalt, 8 parts of aluminium.
The specific preparation method of the above refractory ceramics based composites is as follows：
(1) raw material being put into pulverizer and is crushed, the rotating speed of pulverizer is 200r/min, grinding time 20min,
Obtain the first mixture；
(2) the first mixture made from step (1) is used into wet ball grinding 4h, 200 mesh sieve is crossed after drying, it is mixed to obtain second
It is fit；
(3) it is that the second waterglass for mixing body weight 2% mixes that will be made into the second mixture in step (2) and quality is added
10min is closed, 8h is then allowed to stand, obtains third mixture；
(4) third mixture made from step (3) is sent in molding machine, the compression moulding at 60MPa, it then will compacting
Good adobe send into dry kiln the dry dry embryo for being 3% to water content；
(5) dry embryo is warming up to 1160 DEG C, then keeps the temperature 1h, then 740 DEG C are cooled to the rate of 10 DEG C/min, heat preservation
1h then is cooled to room temperature, and obtains the first semi-finished product；
(6) it is polished the first semi-finished product made from step (5) using edge polisher, the polishing time is 20min, is then made
It is packed with packing machine, to obtain refractory ceramics based composites.
Embodiment 2：
The refractory ceramics based composites of the present embodiment include the weight of following component：80 parts of clay, 20 parts of steel fibre,
20 parts of barite, 30 parts of carbon fiber reinforcement, 18 parts of zirconium dioxide, 16 parts of volcanic rock, 40 parts of zircon, 20 parts of diamond dust, silicon
24 parts of powder, 3 parts of tricalcium phosphate, 10 parts of titanium, 3 parts of cobalt, 10 parts of aluminium.
The specific preparation method of the above refractory ceramics based composites is as follows：
(1) raw material being put into pulverizer and is crushed, the rotating speed of pulverizer is 300r/min, grinding time 60min,
Obtain the first mixture；
(2) the first mixture made from step (1) is used into wet ball grinding 6h, 200 mesh sieve is crossed after drying, it is mixed to obtain second
It is fit；
(3) it is that the second waterglass for mixing body weight 4% mixes that will be made into the second mixture in step (2) and quality is added
30min is closed, 12h is then allowed to stand, obtains third mixture；
(4) third mixture made from step (3) is sent in molding machine, the compression moulding at 80MPa, it then will compacting
Good adobe send into dry kiln the dry dry embryo for being 5% to water content；
(5) dry embryo is warming up to 1230 DEG C, then keeps the temperature 3h, then 850 DEG C are cooled to the rate of 16 DEG C/min, heat preservation
1h then is cooled to room temperature, and obtains the first semi-finished product；
(6) it is polished the first semi-finished product made from step (5) using edge polisher, the polishing time is 40min, is then made
It is packed with packing machine, to obtain refractory ceramics based composites.
Embodiment 3：
The refractory ceramics based composites of the present embodiment include the weight of following component：65 parts of clay, 13 parts of steel fibre,
13 parts of barite, 15 parts of carbon fiber reinforcement, 14 parts of zirconium dioxide, 10 parts of volcanic rock, 32 parts of zircon, 13 parts of diamond dust, silicon
21 parts of powder, 1 part of tricalcium phosphate, 8 parts of titanium, 1 part of cobalt, 8 parts of aluminium.
The specific preparation method of the above refractory ceramics based composites is as follows：
(1) raw material being put into pulverizer and is crushed, the rotating speed of pulverizer is 220r/min, grinding time 30min,
Obtain the first mixture；
(2) the first mixture made from step (1) is used into wet ball grinding 4h, 200 mesh sieve is crossed after drying, it is mixed to obtain second
It is fit；
(3) it is that the second waterglass for mixing body weight 2% mixes that will be made into the second mixture in step (2) and quality is added
15min is closed, 9h is then allowed to stand, obtains third mixture；
(4) third mixture made from step (3) is sent in molding machine, the compression moulding at 65MPa, it then will compacting
Good adobe send into dry kiln the dry dry embryo for being 3% to water content；
(5) dry embryo is warming up to 1180 DEG C, then keeps the temperature 1h, then 760 DEG C are cooled to the rate of 12 DEG C/min, heat preservation
1h then is cooled to room temperature, and obtains the first semi-finished product；
(6) it is polished the first semi-finished product made from step (5) using edge polisher, the polishing time is 25min, is then made
It is packed with packing machine, to obtain refractory ceramics based composites.
Embodiment 4：
The refractory ceramics based composites of the present embodiment include the weight of following component：75 parts of clay, 17 parts of steel fibre,
17 parts of barite, 25 parts of carbon fiber reinforcement, 16 parts of zirconium dioxide, 14 parts of volcanic rock, 38 parts of zircon, 17 parts of diamond dust, silicon
23 parts of powder, 3 parts of tricalcium phosphate, 10 parts of titanium, 3 parts of cobalt, 10 parts of aluminium.
The specific preparation method of the above refractory ceramics based composites is as follows：
(1) raw material being put into pulverizer and is crushed, the rotating speed of pulverizer is 280r/min, grinding time 50min,
Obtain the first mixture；
(2) the first mixture made from step (1) is used into wet ball grinding 6h, 200 mesh sieve is crossed after drying, it is mixed to obtain second
It is fit；
(3) it is that the second waterglass for mixing body weight 4% mixes that will be made into the second mixture in step (2) and quality is added
25min is closed, 11h is then allowed to stand, obtains third mixture；
(4) third mixture made from step (3) is sent in molding machine, the compression moulding at 75MPa, it then will compacting
Good adobe send into dry kiln the dry dry embryo for being 5% to water content；
(5) dry embryo is warming up to 1210 DEG C, then keeps the temperature 3h, then 830 DEG C are cooled to the rate of 14 DEG C/min, heat preservation
1h then is cooled to room temperature, and obtains the first semi-finished product；
(6) it is polished the first semi-finished product made from step (5) using edge polisher, the polishing time is 35min, is then made
It is packed with packing machine, to obtain refractory ceramics based composites.
Embodiment 5：
The refractory ceramics based composites of the present embodiment include the weight of following component：70 parts of clay, 15 parts of steel fibre,
15 parts of barite, 20 parts of carbon fiber reinforcement, 15 parts of zirconium dioxide, 12 parts of volcanic rock, 35 parts of zircon, 15 parts of diamond dust, silicon
22 parts of powder, 2 parts of tricalcium phosphate, 9 parts of titanium, 2 parts of cobalt, 9 parts of aluminium.
The specific preparation method of the above refractory ceramics based composites is as follows：
(1) raw material being put into pulverizer and is crushed, the rotating speed of pulverizer is 250r/min, grinding time 40min,
Obtain the first mixture；
(2) the first mixture made from step (1) is used into wet ball grinding 5h, 200 mesh sieve is crossed after drying, it is mixed to obtain second
It is fit；
(3) it is that the second waterglass for mixing body weight 3% mixes that will be made into the second mixture in step (2) and quality is added
20min is closed, 10h is then allowed to stand, obtains third mixture；
(4) third mixture made from step (3) is sent in molding machine, the compression moulding at 70MPa, it then will compacting
Good adobe send into dry kiln the dry dry embryo for being 4% to water content；
(5) dry embryo is warming up to 1195 DEG C, then keeps the temperature 2h, then 795 DEG C are cooled to the rate of 13 DEG C/min, heat preservation
1h then is cooled to room temperature, and obtains the first semi-finished product；
(6) it is polished the first semi-finished product made from step (5) using edge polisher, the polishing time is 30min, is then made
It is packed with packing machine, to obtain refractory ceramics based composites.
Comparative example 1：
Except external without fibre reinforced, formula and preparation process are consistent with embodiment 5.
Comparative example 2：
In addition to without diamond dust, formula and preparation process are consistent with embodiment 5.
After the refractory ceramics based composites that embodiment 1 to 5 and comparative example 1-2 is prepared, the performance test results
As shown in the table：
| The modulus of rupture (MPa) | Breakdown strength (N) | High temperature resistance | |
| Embodiment 1 | 52 | 3282 | Well |
| Embodiment 2 | 55 | 3284 | Well |
| Embodiment 3 | 56 | 3286 | Well |
| Embodiment 4 | 59 | 3287 | Well |
| Embodiment 5 | 61 | 3290 | It is outstanding |
| Comparative example 1 | 32 | 2980 | Generally |
| Comparative example 2 | 30 | 2703 | Generally |
As can be seen that being selected by the composition material to refractory ceramics based composites from the comparison of three item datas
It selects and matches, the correlated performance of refractory ceramics based composites prepared by embodiment 5 is significantly higher than embodiment 1-4 and comparative example
1-2。
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims
Variation is included within the present invention.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiment being appreciated that.
Claims (6)
1. a kind of refractory ceramics based composites, which is characterized in that by weight, including following raw material：60~80 parts of clay,
10~20 parts of steel fibre, 10~20 parts of barite, 10~30 parts of carbon fiber reinforcement, 12~18 parts of zirconium dioxide, volcanic rock 8~
16 parts, 30~40 parts of zircon, 10~20 parts of diamond dust, 20~24 parts of silica flour, 1~3 part of tricalcium phosphate, 8~10 parts of titanium, cobalt 1
~3 parts, 8~10 parts of aluminium.
2. a kind of refractory ceramics based composites according to claim 1, which is characterized in that by weight, including with
Lower raw material：65~75 parts of clay, 13~17 parts of steel fibre, 13~17 parts of barite, 15~25 parts of carbon fiber reinforcement, titanium dioxide
14~16 parts of zirconium, 10~14 parts of volcanic rock, 32~38 parts of zircon, 13~17 parts of diamond dust, 21~23 parts of silica flour, tricalcium phosphate
1~3 part, 8~10 parts of titanium, 1~3 part of cobalt, 8~10 parts of aluminium.
3. a kind of refractory ceramics based composites according to claim 1, which is characterized in that by weight, including with
Lower raw material：70 parts of clay, 15 parts of steel fibre, 15 parts of barite, 20 parts of carbon fiber reinforcement, 15 parts of zirconium dioxide, volcanic rock 12
Part, 35 parts of zircon, 15 parts of diamond dust, 22 parts of silica flour, 2 parts of tricalcium phosphate, 9 parts of titanium, 2 parts of cobalt, 9 parts of aluminium.
4. a kind of preparation method of refractory ceramics based composites according to claim 1, which is characterized in that this method
Include the following steps：
（1）Raw material is put into pulverizer and is crushed, grinding time is 20~60min, obtains the first mixture；
（2）By step（1）First mixture obtained uses 4~6h of wet ball grinding, and 200 mesh sieve is crossed after drying, it is mixed to obtain second
It is fit；
（3）By step（2）In be made into the second mixture be added quality be second mixing body weight 2~4% waterglass mixing
10~30min is then allowed to stand 8~12h, obtains third mixture；
（4）By step（3）Third mixture obtained is sent in molding machine, the compression moulding at 60~80MPa, then will compacting
Good adobe send into dry kiln the dry dry embryo for being 3~5% to water content；
（5）Dry embryo is warming up to 1160~1230 DEG C, then keeps the temperature 1~3h, then 740 are cooled to the rate of 10~16 DEG C/min
~850 DEG C, 1h is kept the temperature, then is cooled to room temperature, obtains the first semi-finished product；
（6）Using edge polisher to step（5）First semi-finished product obtained are polished, and the polishing time is 20~40min, is then made
It is packed with packing machine, to obtain refractory ceramics based composites.
5. a kind of preparation method of refractory ceramics based composites according to claim 4, which is characterized in that the step
Suddenly（1）The rotating speed of middle pulverizer is 200~300r/min.
6. a kind of preparation method of refractory ceramics based composites according to claim 4, which is characterized in that the step
Suddenly（3）The solid content of middle waterglass is 35%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810719069.8A CN108796401A (en) | 2018-07-03 | 2018-07-03 | A kind of refractory ceramics based composites and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810719069.8A CN108796401A (en) | 2018-07-03 | 2018-07-03 | A kind of refractory ceramics based composites and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108796401A true CN108796401A (en) | 2018-11-13 |
Family
ID=64073422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810719069.8A Pending CN108796401A (en) | 2018-07-03 | 2018-07-03 | A kind of refractory ceramics based composites and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108796401A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106007758A (en) * | 2016-04-22 | 2016-10-12 | 葫芦岛市华能工业陶瓷有限公司 | Toughened silicon nitride combined silicon carbide ceramic composite material and preparation method thereof |
| CN107793126A (en) * | 2017-10-31 | 2018-03-13 | 桂林加宏汽车修理有限公司 | A kind of refractory ceramics |
| CN107827434A (en) * | 2017-11-24 | 2018-03-23 | 桂林市雁山区青少年活动中心 | A kind of high-strength ceramic metallic composite |
| CN107904467A (en) * | 2017-11-24 | 2018-04-13 | 桂林市雁山区青少年活动中心 | A kind of corrosion-resistant ceramic metallic composite |
| CN107937785A (en) * | 2017-11-24 | 2018-04-20 | 桂林市雁山区青少年活动中心 | A kind of wear-resistant ceramic metallic composite |
| CN107954693A (en) * | 2017-11-24 | 2018-04-24 | 桂林市雁山区青少年活动中心 | A kind of refractory ceramics metallic composite |
-
2018
- 2018-07-03 CN CN201810719069.8A patent/CN108796401A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106007758A (en) * | 2016-04-22 | 2016-10-12 | 葫芦岛市华能工业陶瓷有限公司 | Toughened silicon nitride combined silicon carbide ceramic composite material and preparation method thereof |
| CN107793126A (en) * | 2017-10-31 | 2018-03-13 | 桂林加宏汽车修理有限公司 | A kind of refractory ceramics |
| CN107827434A (en) * | 2017-11-24 | 2018-03-23 | 桂林市雁山区青少年活动中心 | A kind of high-strength ceramic metallic composite |
| CN107904467A (en) * | 2017-11-24 | 2018-04-13 | 桂林市雁山区青少年活动中心 | A kind of corrosion-resistant ceramic metallic composite |
| CN107937785A (en) * | 2017-11-24 | 2018-04-20 | 桂林市雁山区青少年活动中心 | A kind of wear-resistant ceramic metallic composite |
| CN107954693A (en) * | 2017-11-24 | 2018-04-24 | 桂林市雁山区青少年活动中心 | A kind of refractory ceramics metallic composite |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106078537B (en) | Devitrified glass bonding agent and preparation method thereof for extra hard material grinding wheel, extra hard material grinding wheel and preparation method thereof, composite wheel | |
| CN108098603A (en) | A kind of polishing train special grinding wheel containing super hard abrasive cermet bonding agent and preparation method thereof | |
| CN108972390A (en) | A kind of rail grinding train special grinding wheel and preparation method thereof | |
| CN102922436A (en) | Diamond grinding wheel and preparation method thereof | |
| CN106826591A (en) | A kind of rubber resin combined binder grinding tool and preparation method thereof | |
| CN104235242A (en) | Carbon-based ceramic brake block and preparing method of carbon-based ceramic brake block | |
| CN105773449A (en) | Manufacturing method of small-particle size large-thickness ceramic bond grinding wheel | |
| CN103624696A (en) | Ceramic bond, preparation method thereof and manufacturing method of ceramic bond grinding tool | |
| CN103204663A (en) | Artificial stone made through using solid waste residues | |
| CN109159039A (en) | A kind of blade tool processing grinding abrasive disk | |
| CN105834924A (en) | High-speed heavy-load resin cutting sand wheel and preparation method thereof | |
| CN108793967A (en) | A kind of oxidation-resistant ceramic based composites and preparation method thereof | |
| CN104493731A (en) | Super-hard material grinding apparatus using calcium sulfate whisker as binding agent and preparation method thereof | |
| CN107457345A (en) | A kind of clay green-sand without coal dust | |
| CN108796401A (en) | A kind of refractory ceramics based composites and preparation method thereof | |
| CN108774717A (en) | A kind of corrosion-resistant ceramic based composites and preparation method thereof | |
| CN105972132B (en) | A kind of wingceltis fiber reinforcement environment-friendly type brake block | |
| CN108546088A (en) | A kind of wear-resistant ceramic based composites and preparation method thereof | |
| CN107827434A (en) | A kind of high-strength ceramic metallic composite | |
| CN108395219A (en) | A kind of carrying roller ceramic material and preparation method thereof | |
| CN107954693A (en) | A kind of refractory ceramics metallic composite | |
| CN108911774A (en) | A kind of boron carbide-alumina composite ceramic nozzle and preparation method thereof | |
| CN108930005A (en) | A kind of high-strength ceramic based composites and preparation method thereof | |
| CN107336147A (en) | A kind of heatproof, metal, building materials grinding tool and the preparation method of dry grinding | |
| CN108621038A (en) | A kind of resin wheel of fibre reinforced and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181113 |