CN103771892B - Metal strengthening ceramic wafer and preparation method thereof - Google Patents
Metal strengthening ceramic wafer and preparation method thereof Download PDFInfo
- Publication number
- CN103771892B CN103771892B CN201410000256.2A CN201410000256A CN103771892B CN 103771892 B CN103771892 B CN 103771892B CN 201410000256 A CN201410000256 A CN 201410000256A CN 103771892 B CN103771892 B CN 103771892B
- Authority
- CN
- China
- Prior art keywords
- metal
- ceramic
- ceramic wafer
- product
- metal strengthening
- 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.)
- Active
Links
- 239000002184 metal Substances 0.000 title claims abstract description 51
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 51
- 239000000919 ceramic Substances 0.000 title claims abstract description 38
- 238000005728 strengthening Methods 0.000 title claims abstract description 19
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 29
- 238000005245 sintering Methods 0.000 claims abstract description 22
- 239000011521 glass Substances 0.000 claims abstract description 14
- 239000000428 dust Substances 0.000 claims abstract description 10
- 239000011159 matrix material Substances 0.000 claims abstract description 9
- 239000000843 powder Substances 0.000 claims abstract description 9
- 229910010293 ceramic material Inorganic materials 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 13
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 6
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000007731 hot pressing Methods 0.000 claims description 5
- 230000002787 reinforcement Effects 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 229910052580 B4C Inorganic materials 0.000 claims description 2
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical compound B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 claims description 2
- 239000010962 carbon steel Substances 0.000 claims description 2
- 230000006698 induction Effects 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- 239000010936 titanium Substances 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000010304 firing Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 6
- 230000002708 enhancing effect Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 239000000047 product Substances 0.000 description 24
- 239000007769 metal material Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 3
- 229920000914 Metallic fiber Polymers 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000002905 metal composite material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000009766 low-temperature sintering Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000011226 reinforced ceramic Substances 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Abstract
The present invention provides a kind of metal strengthening ceramic wafer and preparation method thereof.Metal strengthening ceramic wafer provided by the present invention contains reinforced metal mesh, ceramic powders the melten gel matrix formed and glass dust sintering aid.The metal enhancing of metal strengthening ceramic wafer provided by the present invention is evenly distributed in ceramic matrix, material property controllability is good, and the production technology of the metal strengthening ceramic wafer of the present invention is the simplest, cost of material is lower, properties of product are more stable, mechanical property and the density of product can be regulated within the specific limits by the kind of plus-minus wire netting and quantity easily, reach the accurately prediction to properties of product and control.
Description
Technical field
The present invention relates to a kind of composite ceramic plate and preparation method thereof, particularly a kind of metal strengthening ceramic wafer and system thereof
Preparation Method.
Background technology
Engineering material has various different sorting technique, and the method comparing science is the person's character according to material or material combination
The character of key is classified.Usually, engineering material is divided into metal material, ceramic material, macromolecular material and composite four
Big class.
Metal material is most important engineering material, and it includes metal and the alloy with metal as base.Owing to metal is constituted
Associative key between atom is substantially metallic bond, so metal material is all metallic crystal, conduction, heat conduction, ductility are the most very
Good.Metal material has good processing characteristics, can be processed by various ways such as punching press, turning, welding, and can
To adjust chemical composition as required and heat treatment mode obtains the various products that people need.And the reliability of metal material
Preferably, mature production technology, properties of product are stable, so being most important engineering material.
The advantages such as it is high that ceramic material has hardness, chemical composition stability, anticorrosive, high temperature resistant, but its shortcoming to be matter crisp, warp
Do not play thermal shock.And the reliability of ceramic material is not as metal material.Ceramic material enbrittle height, toughness bad and after add
The shortcomings such as work difficulty, so greatly limit the range of application of ceramic material.
Also there is the research in terms of ceramic-metal composites in the past.Such as ceramic on metal composite materials, passes through
In metallic matrix, increase ceramic phase improve hardness and anti-wear performance, the Metallic Fibre Reinforced Ceramic Composite of metal, pass through
In pottery, increase metallic fiber or whisker increases the toughness of pottery, shock resistance etc..The mode added is typically to increase
Strong be mixed into mutually in matrix material or add in the feed can produce the raw material of enhancing phase and generate tiny enhancing by reaction in-situ
Phase.But all there is enhancing skewness, the phenomenons such as material property controllability is bad the most in the base in conventional technology.And
Cost of material is higher, limits production scale and the range of application of product.
Metal and ceramic material are basically identical with ordinary circumstance in the applicable cases of ballistic area.Adding of metal bullet resistant material
Work performance is good, strength character is stable, be easily installed and overhaul, good toughness, anti-repeatedly impact ability are good.But hardness low and high temperature is strong
Spend that poor, density is high, weight greatly, the most corrosion-resistant.Ceramic material has that hardness is good, density is little, comprcssive strength is high, elevated temperature strength is high,
The advantages such as elastic modelling quantity is high, chemical stability is good, corrosion-resistant, but the most also have shape processing difficulties, unstable properties, fragility
The shortcoming that height, poor toughness, anti-repeatedly impact ability are more weak.Only above-mentioned two class Material claddings are got up to can be only achieved advantage mutual
Mend, give full play to that ceramic hardness is high, density is little, the feature that metal toughness repeatedly impact good, anti-ability is strong, thus obtain weight
Gently, the bulletproof effect the most anti-novel ballistic material repeatedly impacted.
Summary of the invention
It is an object of the invention to overcome above-mentioned deficiency of the prior art, it is provided that a kind of enhancing is distributed all the most in the base
The metal strengthening ceramic wafer even, material property controllability is good.
It is a further object to provide the preparation method of above-mentioned metal strengthening ceramic wafer.
It is an object of the invention to realize by the following technical solutions.
On the one hand, the present invention provides a kind of metal strengthening ceramic wafer, and this ceramic wafer is to fire step by one to prepare
, described ceramic wafer contains reinforced metal mesh, ceramic powders the melten gel matrix formed and glass dust sintering aid.
Preferably, described reinforced metal mesh is braided metal net or welding wire netting.Both wire nettings can be gold
Belong to the two-dimentional pulling force constraint that intensified ceramic plate provides parallel with its tinsel.Can make to increase the reinforced effects of thickness direction
Make which floor wire netting form 3-D solid structure by the mode welded or tie up, thus reach the reinforced effects in three directions.
Preferably, the material of described reinforced metal mesh can select various metal or alloy, such as carbon steel, rustless steel,
Titanium, nickel etc..
Preferably, described ceramic powders selects boron carbide, carborundum, aluminium oxide or the ceramic material of other high rigidity.Make
Used time selects according to hardness, ballistic performance, weight and the cost requirement of product.
Preferably, the addition of described glass dust sintering aid is the 10-50% of described metal strengthening ceramic material gross weight.
Glass powder materials can select according to the situation of reinforced metal mesh and ceramic powders, to ensure the good coefficient of expansion
Join, good chemical stability and good effect of impregnation.
On the other hand, the present invention provides the preparation method of a kind of metal strengthening ceramic wafer, said method comprising the steps of:
1) select suitable raw material, be mixed in proportion and become Ceramic Material.
2) select suitable metal reinforcements, and reduce, tie up or be welded into the size being slightly less than target product.
3) mould molding is used.
4) kiln heat treatment is used.
Select to need the performance requirement according to product, cost constraint to select suitable raw material type during raw material；According to product
Specification select suitable ceramic material granularmetric composition and the specification of reinforced metal mesh, size.The selection of material is to ensure
Product cost and machinability be optimized for purpose.
Preferably, the mould molding mode described in step 3) select room temperature vibrate casting, mould compacting, high temperature hot pressing waters
One in casting, it is therefore an objective to obtain the product that the compaction rate of given size is higher.If using formed at normal temp technique, for ensureing
Green strength needs to add suitable binding agent, and the binding agent such as common phenolic resin, cellulose, paraffin, polyvinyl alcohol all may be used
To use.
Preferably, the maximum sintering temperature in heat treatment process described in step 4) is between 700-1300 DEG C.Can basis
The kind of maximum sintering temperature sintering aid and addition, to ensure the feasibility of product processing technique.Maximum sintering temperature is main
Kind and performance by reinforced metal mesh determine, it is to avoid under the too high damage causing reinforced metal mesh material of sintering temperature and performance
Fall.
Preferably, kiln described in step 4) select resistance furnace, induction furnace or other can reach in the kiln of sintering temperature
One.
The present invention reduces the integral sintered of ceramic matrix by the way of adding the sintering aids such as glass dust in ceramic powders
Temperature.Sintering aid is utilized to accelerate the sintering process of ceramic matrix in the liquid phase that lower temperature produces.On the one hand, sintering aid is relatively low
At a temperature of just can produce substantial amounts of liquid phase, accelerate heat and mass transfer process, accelerate the sintering process of other ceramic material；Separately
On the one hand, single glass can also play the effect of other ceramic particle bonding mutually.The liquid phase that glass produces simultaneously can be wrapped
It is rolled in the surface of reinforced metal mesh, contributes to preventing the oxidation of reinforced metal mesh in sintering process.The coefficient of expansion of glass between
Between other ceramic particle and metal material, it helps the good transition of the combination interface between ceramic matrix and reinforcing material.
Realizing low-temperature sintering is the important prerequisite obtaining metal strengthening ceramic wafer of the present invention.
The present invention can reach to provide the benefit that after using technique scheme:
One, for the product in the past using metallic fiber or whisker to carry out strengthening and method, use and strengthen metal
Net strengthens ceramic material, and its production technology is the simplest, cost of material is lower, properties of product are more stable, and can be necessarily
In the range of regulated mechanical property and the density of product easily by kind and the quantity of plus-minus wire netting, reach properties of product
Accurately prediction with control.Owing to using reinforced metal mesh to instead of whisker or fiber, so success in manufacture course of products
Having evaded the irregular phenomenon of batch mixing owing to causing due to interpolation whisker or fiber, the addition quantity strengthening phase has expanded, and produces
The performance parameter of product can be adjusted in the larger context.Wire netting can be two-dimentional, it is also possible to is three-dimensional, produces
In can by adjusting the kind of reinforced metal mesh, quantity and compound mode control the mechanical property of final products, can facilitate
The anisotropy realizing product.This is especially beneficial for making bullet resistant material, can be by adjusting the distribution of reinforced metal mesh
The intensity in state strengthening bullet resistant material anti-strike district is without the intensity increase extra-pay for changing other direction.
Two, due to the structures shape of product of the present invention, within metal reinforcements can being coated on ceramic material completely.
The porosity that can be made ceramic material by preferable sintering condition is fallen too low, and particularly can be deep into the connection of material internal
Ventilation porosity is the lowest, so after completion of processing, metal reinforcements will not directly contact water in the product, air, salt grade
Common Korrosionsmedium.Plus the chemical stability that ceramic material is good, other strong corrosive medium is all had very by product
Good tolerance.This can be greatly enhanced the service life of product, extends the time between overhauls(TBO).
Accompanying drawing explanation
Fig. 1 is the X-ray check figure of the steel strengthened silicon carbide plate of the embodiment of the present invention 1 gained.
Detailed description of the invention
Embodiment 1
Selection carborundum is primary ceramic material, and glass dust is sintering aid, and mild steel welding wire netting is that metal strengthens material
Material, the silicon carbide powder of F46, F230, F1200 specification, glass dust for the product of 200 × 200 × 12mm, pressed 5:2 by hot pressing:
The ratio uniform mixing of 1:2, the rear polyvinyl alcohol water solution furnishing that adds has the slip of certain fluidity.Put on platform vibrating
Put mould, and the wire netting made is put into wherein.Under the state of vibrating, add slip, make the sky that slip is full of between wire netting
Gap, and the air in slip is discharged as far as possible.Mould is put into 120 DEG C of baking oven be dried.After green compact are completely dried by its from
Mould takes out.Dried green compact are put in hot pressing furnace and carry out hot pressed sintering.Gained metal reinforcements accounting is 10%
Time, the density of products obtained therefrom is 3.5g/cm3。
Embodiment 2
Selection carborundum is primary ceramic material, and glass dust is sintering aid, and mild steel welding wire netting is that metal strengthens material
Material, hot pressing is for 300 × 300 × 80mm product.F46, F230, F1200 silicon carbide ceramics powder, glass dust are pressed 3:2:1:4
Ratio uniform mixing.Crucible is heated to 1100-1200 DEG C.Cutting, the mild steel wire netting tied up is solid in a mold
Reserve, then the raw material of fluid state is cast to wherein, natural cooling.
Although the present invention discloses as above with preferred embodiment, so it is not limited to the present invention, any affiliated technology
The technical staff in field, without departing from the spirit and scope of the present invention, when making a little change and improvement, the therefore present invention
Protection domain when being as the criterion depending on as defined in claim.
Claims (1)
1. a metal strengthening ceramic wafer, this ceramic wafer by firing preparation, described ceramic wafer contain reinforced metal mesh, by
The matrix of ceramic powders melten gel formation and glass dust sintering aid, described reinforced metal mesh is the braided metal of 3-D solid structure
Net or welding wire netting, one or more in reinforced metal mesh material selection carbon steel, rustless steel, titanium, nickel, described ceramic powders
Selecting one or more in boron carbide, carborundum, aluminium oxide, the addition of described glass dust sintering aid is described metal strengthening
The 10-50% of ceramic wafer material gross weight, the preparation method of described metal strengthening ceramic wafer is:
1) select suitable raw material, be mixed in proportion and become Ceramic Material；
2) select suitable metal reinforcements, and reduce, tie up or be welded into the size being slightly less than target product；
3) use mould molding, mould molding mode select room temperature vibrate casting, mould compacting, high temperature hot pressing cast in one
Kind；
4) using kiln heat treatment, the maximum sintering temperature in heat treatment process is between 700-1300 DEG C, and resistance selected by kiln
Stove or induction furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410000256.2A CN103771892B (en) | 2014-01-02 | 2014-01-02 | Metal strengthening ceramic wafer and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410000256.2A CN103771892B (en) | 2014-01-02 | 2014-01-02 | Metal strengthening ceramic wafer and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103771892A CN103771892A (en) | 2014-05-07 |
| CN103771892B true CN103771892B (en) | 2016-10-05 |
Family
ID=50564728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410000256.2A Active CN103771892B (en) | 2014-01-02 | 2014-01-02 | Metal strengthening ceramic wafer and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103771892B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10601062B2 (en) * | 2015-10-01 | 2020-03-24 | Dynantis Corp. | Sodium metal batteries with intercalating cathode |
| CN110877975B (en) * | 2018-09-05 | 2021-09-24 | 中国建材检验认证集团股份有限公司 | Prestressed ceramic and preparation method thereof |
| CN109574638A (en) * | 2018-12-29 | 2019-04-05 | 山东天汇研磨耐磨技术开发有限公司 | A kind of high-bond ceramics section and its manufacturing method applying metal-rubber |
| CN110861191A (en) * | 2019-11-28 | 2020-03-06 | 新乡学院 | Method for reducing brittleness of Ru porcelain by compounding metal |
| CN112142484A (en) * | 2020-09-18 | 2020-12-29 | 株洲三达电子制造有限公司 | Preparation method of ceramic for ceramic sensor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353081A (en) * | 2011-06-15 | 2012-02-15 | 朱巧荣 | Ceramic plate and its production technology |
-
2014
- 2014-01-02 CN CN201410000256.2A patent/CN103771892B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353081A (en) * | 2011-06-15 | 2012-02-15 | 朱巧荣 | Ceramic plate and its production technology |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103771892A (en) | 2014-05-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103771892B (en) | Metal strengthening ceramic wafer and preparation method thereof | |
| CN103667849B (en) | A kind of metal matrix ceramic composites and manufacture method thereof and application | |
| CN104439192B (en) | A kind of ceramic honeycomb metallic composite grinding roller of vertical mill preparation method | |
| CN100400473C (en) | High strength and high toughness foamed SiC/Al material and its preparing method | |
| CN103075445B (en) | A kind of ceramic/metal composite materials brake lining for bullet train and preparation method thereof | |
| CN102251139B (en) | Preparation method of high-volume-fraction diamond/aluminum composite material with heat conduction function | |
| CN107141004B (en) | Boron carbide composite material and preparation method thereof | |
| CN104073674A (en) | Preparation method of graphene aluminum-based composite material | |
| CN101376276A (en) | Magnesium-base compound material and preparation method thereof | |
| CN102861873A (en) | Casting method of gear | |
| CN111516314A (en) | ABA type sandwich composite material and preparation method thereof | |
| CN106424741B (en) | SiC particulate enhances intermetallic compound base laminar composite Ti/Al3The preparation method of Ti | |
| CN101713056A (en) | Metal matrix three-dimensional netlike carbon fiber composite material and manufacturing method thereof | |
| CN109928756A (en) | A kind of SiC reinforcement C-base composte material and preparation method | |
| CN104658917B (en) | A kind of preparation method of the metal-based compound electronics packaging part containing high-volume fractional SiC | |
| CN104329988B (en) | Bulletproof ceramic chip and preparation method thereof | |
| CN107217168A (en) | A kind of infiltration method zirconium oxide copper composite metal ceramics and preparation method thereof | |
| CN114192801B (en) | Preparation method of three-dimensional double-communication structure composite material based on additive manufacturing | |
| CN108213443A (en) | A kind of bionic laminar is high-strength, the preparation method of high-ductility material | |
| CN116829358A (en) | Layered composite wear part with structural reinforcement | |
| CN103060586B (en) | Preparation method for complex-shape niobium-based ODS (oxide dispersion strengthening) alloy | |
| CN104117675A (en) | Preparation method for composite material based on porous aluminum or aluminum alloy | |
| CN102676956B (en) | Method for preparing iron-based surface composite material by virtue of in-situ synthesis | |
| CN109277518B (en) | Preparation method of refractory material for TiAl alloy precision casting | |
| CN105272335A (en) | Preparation method of gradient porous mullite ceramic |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 116450, Begonia Street, 58 Garden Economic Zone, Dalian, Liaoning, Liaoning, Dalian Applicant after: DALIAN JINMA BORON SCIENCE AND TECHNOLOGY GROUP Co.,Ltd. Address before: 116000, Jinzhou New District, Liaoning, Dalian double D digital 2 Road No. 23 Applicant before: Dalian Jinma Boron Technology Group Co.,Ltd. |
|
| COR | Change of bibliographic data | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20190305 Granted publication date: 20161005 |
|
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20220305 Granted publication date: 20161005 |
|
| PD01 | Discharge of preservation of patent | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20220305 Granted publication date: 20161005 |
|
| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20220905 Granted publication date: 20161005 |
|
| PD01 | Discharge of preservation of patent | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20220905 Granted publication date: 20161005 |
|
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20230305 Granted publication date: 20161005 |
|
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20230305 Granted publication date: 20161005 |
|
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20230905 Granted publication date: 20161005 |
|
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20230905 Granted publication date: 20161005 |