CN104072150B - A kind of preparation process of water pump seal silicon nitride ceramic material - Google Patents
A kind of preparation process of water pump seal silicon nitride ceramic material Download PDFInfo
- Publication number
- CN104072150B CN104072150B CN201410261609.4A CN201410261609A CN104072150B CN 104072150 B CN104072150 B CN 104072150B CN 201410261609 A CN201410261609 A CN 201410261609A CN 104072150 B CN104072150 B CN 104072150B
- Authority
- CN
- China
- Prior art keywords
- silicon nitride
- water pump
- nitride ceramic
- pump seal
- ceramic material
- 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.)
- Expired - Fee Related
Links
Landscapes
- Ceramic Products (AREA)
Abstract
The invention discloses a kind of preparation processes of water pump seal silicon nitride ceramic material, silicon nitride, talcum powder, silicon carbide ultrafine powder, barium carbonate powder and dehydrated alcohol are uniformly mixed, then addition zirconium dioxide, titanium dioxide are sent into mist projection granulating in spray tower and obtain first material after being fully ground；It is sent into high temperature furnace the calcined oxide 6-8h at 1000-1200 DEG C, is placed in vibrating ball-mill and crushes, obtains the second material that granularity is 3000-4000 mesh；Polyvinyl alcohol is added into obtained second material, then adds 1.2-1.6 tons every square centimeter of pressure compression moulding to obtain third material through equal pressing equipment；Hot-pressing processing obtains 4 materials, and high temperature furnace calcination temperature is 1250-1350 DEG C, and the hot-pressing processing time is 7-8h, and calcining pressure is 100000-150000kg/m2；Grinding, slice molding obtain water pump seal silicon nitride ceramic material.
Description
Technical field
The present invention relates to silicon nitride ceramic material technical field more particularly to a kind of water pump seal silicon nitride ceramic materials
Preparation process.
Background technique
Silicon nitride ceramics is a kind of important structural material.It is a kind of superhard substance, when sintering non-shrinking inorganic material
Material, itself has lubricity, and wear-resistant；In addition to hydrofluoric acid, not with other inorganic acid reactions, resistance to corrosion is strong for it, high
It is anti-oxidant when warm, and it can also resist cooling thermal impact, be heated to 1000 DEG C or more in air, quick refrigeration sharply adds again
Heat, will not fragmentation.There is so excellent characteristic just because of silicon nitride ceramics, people are usually utilized to manufacture small size gasoline
Oil machine water pump seal ceramic material.As the use scope of silicon nitride ceramic material also increasingly expands.Existing silicon nitride pottery
Ceramic material is increasingly unable to satisfy the demand of high speed development, and it is high how to prepare a kind of consistency, and intensity, wearability be good and heat resistance
Ceramic material that can be excellent becomes the current technical issues that need to address.
Summary of the invention
Technical problems based on background technology, the invention proposes a kind of water pump seal silicon nitride ceramic materials
Preparation process, product weight is light, and consistency is high, and intensity is big, and wearability is good, and high temperature resistance is excellent, and preparation process is simple, at
This is lower.
A kind of preparation process of water pump seal silicon nitride ceramic material proposed by the present invention, includes the following steps:
S1,70-85 parts of silicon nitrides, 10-18 parts of talcum powder, 20-23 parts of silicon carbide ultrafine powders, 2-4 parts are weighed by weight
Barium carbonate powder and using silicon carbide as benchmark 1.5-3wt% dehydrated alcohol be uniformly mixed, then be added 2-3 parts of zirconium dioxides, 0.5-
1.5 parts of titanium dioxide are sent into mist projection granulating in spray tower and obtain first material after being fully ground；
S2, first material is sent into high temperature furnace the calcined oxide 6-8h at 1000-1200 DEG C, be subsequently placed in vibrating ball-mill
It crushes, obtains the second material that granularity is 3000-4000 mesh；
S3, it is added into obtained second material using second material as the polyvinyl alcohol of benchmark 0.8-1.3wt%, then passes through
Equal pressing equipment adds 1.2-1.6 tons every square centimeter of pressure compression moulding to obtain third material, keeps vacuum in pressing process；
S4, third material is put into high temperature furnace and in N2Hot-pressing processing obtains 4 materials, high temperature furnace calcining under atmosphere
Temperature is 1250-1350 DEG C, and the hot-pressing processing time is 7-8h, and calcining pressure is 100000-150000kg/m2；
S5,4 materials are ground, molding is sliced and obtains water pump seal silicon nitride ceramic material.
Preferably, the silicon carbide ultrafine powder includes that the silicon carbide ultrafine powder that partial size is 5-10 μm accounts for 70-85%, and partial size is
15-30 μm of silicon carbide ultrafine powder accounts for 10-20%, and partial size is that 40-60 μm of silicon carbide ultrafine powder accounts for 5-10%.
Preferably, in S1, the weight ratio of silicon nitride, talcum powder and silicon carbide ultrafine powder is 70-80:10-15:20.
Preferably, in S2, first material is sent into high temperature furnace the calcined oxide 7-8h at 1100-1150 DEG C.
Preferably, in S4, high temperature furnace calcination temperature is 1300-1320 DEG C, and calcining pressure is 120000-135000kg/
m2。
In the present invention, silicon nitride differential size is small, and almost without plastic deformation, compressibility and mouldability are poor, using poly- second
Enol is added appropriate silicon carbide ultrafine powder and cooperates above two raw material, rationally control raw material particle size, make the present invention as forming agent
Weight, intensity are high, wear-resisting property is good, resistance to thermal shock, greatly prolong service life of the present invention；Since zirconium dioxide chemical property is not lived
It sprinkles, corrosion-resistant, refractive index is high, and fusing point is high, and thermal expansion coefficient is low, and titanium dioxide property torpescence, but also as white
Pigment and porcelain glaze, cooperation are added zirconium dioxide, titanium dioxide as sintering aid, keep structure of the invention uniform, significantly mention
High toughening effect, and high temperature resistance of the present invention can be greatly improved, moreover it is possible to keep color of the present invention good；In the preparation of first material
Abundant wet-milling is carried out in the process, can not only make each component broken uniformly, uniform particle sizesization, and also each component is uniformly distributed.
Detailed description of the invention
Fig. 1 is a kind of preparation technology flow chart of water pump seal silicon nitride ceramic material proposed by the present invention.
Specific embodiment
As shown in FIG. 1, FIG. 1 is a kind of preparation process flows of water pump seal silicon nitride ceramic material proposed by the present invention
Figure.
Referring to Fig.1, the preparation process of a kind of water pump seal silicon nitride ceramic material proposed by the present invention, including walk as follows
It is rapid:
S1,70-85 parts of silicon nitrides, 10-18 parts of talcum powder, 20-23 parts of silicon carbide ultrafine powders, 2-4 parts are weighed by weight
Barium carbonate powder and using silicon carbide as benchmark 1.5-3wt% dehydrated alcohol be uniformly mixed, then be added 2-3 parts of zirconium dioxides, 0.5-
1.5 parts of titanium dioxide are sent into mist projection granulating in spray tower and obtain first material after being fully ground；
S2, first material is sent into high temperature furnace the calcined oxide 6-8h at 1000-1200 DEG C, be subsequently placed in vibrating ball-mill
It crushes, obtains the second material that granularity is 3000-4000 mesh；
S3, it is added into obtained second material using second material as the polyvinyl alcohol of benchmark 0.8-1.3wt%, then passes through
Equal pressing equipment adds 1.2-1.6 tons every square centimeter of pressure compression moulding to obtain third material, keeps vacuum in pressing process；
S4, third material is put into high temperature furnace and in N2Hot-pressing processing obtains 4 materials, high temperature furnace calcining under atmosphere
Temperature is 1250-1350 DEG C, and the hot-pressing processing time is 7-8h, and calcining pressure is 100000-150000kg/m2；
S5,4 materials are ground, molding is sliced and obtains water pump seal silicon nitride ceramic material.
Embodiment 1
A kind of preparation process of water pump seal silicon nitride ceramic material, includes the following steps:
S1, weigh by weight 70 parts of silicon nitrides, 18 parts of talcum powder, 20 parts of silicon carbide ultrafine powders, 4 parts of barium carbonate powder and with
Silicon carbide is uniformly mixed for benchmark 1.5wt% dehydrated alcohol, 3 parts of zirconium dioxides then is added, 0.5 part of titanium dioxide is fully ground
It is sent into mist projection granulating in spray tower afterwards and obtains first material, wherein silicon carbide ultrafine powder includes that the silicon carbide that partial size is 5-10 μm is super
Fine powder accounts for 85%, and partial size is that 15-30 μm of silicon carbide ultrafine powder accounts for 10%, and partial size is that 40-60 μm of silicon carbide ultrafine powder accounts for
5%；
S2, first material is sent into high temperature furnace the calcined oxide 6h at 1200 DEG C, is subsequently placed in vibrating ball-mill and crushes, obtains
It is the second material of 4000 mesh to granularity；
S3, into obtained second material be added using second material as the polyvinyl alcohol of benchmark 0.8wt%, then through etc. it is quiet
Pressure equipment adds 1.6 tons every square centimeter of pressure compression moulding to obtain third material, keeps vacuum in pressing process；
S4, third material is put into high temperature furnace and in N2Hot-pressing processing obtains 4 materials, high temperature furnace calcining under atmosphere
Temperature is 1250 DEG C, and the hot-pressing processing time is 8h, and calcining pressure is 100000kg/m2；
S5,4 materials are ground, molding is sliced and obtains water pump seal silicon nitride ceramic material.
Embodiment 2
A kind of preparation process of water pump seal silicon nitride ceramic material, includes the following steps:
S1, weigh by weight 85 parts of silicon nitrides, 10 parts of talcum powder, 23 parts of silicon carbide ultrafine powders, 2 parts of barium carbonate powder and with
Silicon carbide is uniformly mixed for benchmark 3wt% dehydrated alcohol, after then 2 parts of zirconium dioxides of addition, 1.5 parts of titanium dioxide are fully ground
It is sent into mist projection granulating in spray tower and obtains first material, wherein silicon carbide ultrafine powder includes the silicon carbide super that partial size is 5-10 μm
Powder accounts for 70%, and partial size is that 15-30 μm of silicon carbide ultrafine powder accounts for 20%, and partial size is that 40-60 μm of silicon carbide ultrafine powder accounts for 10%；
S2, first material is sent into high temperature furnace the calcined oxide 8h at 1000 DEG C, is subsequently placed in vibrating ball-mill and crushes, obtains
It is the second material of 3000 mesh to granularity；
S3, into obtained second material be added using second material as the polyvinyl alcohol of benchmark 1.3wt%, then through etc. it is quiet
Pressure equipment adds 1.2 tons every square centimeter of pressure compression moulding to obtain third material, keeps vacuum in pressing process；
S4, third material is put into high temperature furnace and in N2Hot-pressing processing obtains 4 materials, high temperature furnace calcining under atmosphere
Temperature is 1350 DEG C, and the hot-pressing processing time is 7h, and calcining pressure is 150000kg/m2；
S5,4 materials are ground, molding is sliced and obtains water pump seal silicon nitride ceramic material.
Embodiment 3
A kind of preparation process of water pump seal silicon nitride ceramic material, includes the following steps:
S1, weigh by weight 80 parts of silicon nitrides, 15 parts of talcum powder, 20 parts of silicon carbide ultrafine powders, 3 parts of barium carbonate powder and with
Silicon carbide is uniformly mixed for benchmark 2.5wt% dehydrated alcohol, 2.8 parts of zirconium dioxides then is added, 1.3 parts of titanium dioxide are sufficiently ground
It is sent into mist projection granulating in spray tower after mill and obtains first material, wherein silicon carbide ultrafine powder includes the silicon carbide that partial size is 5-10 μm
Superfine powder accounts for 80%, and partial size is that 15-30 μm of silicon carbide ultrafine powder accounts for 10%, and partial size is that 40-60 μm of silicon carbide ultrafine powder accounts for
10%；
S2, first material is sent into high temperature furnace the calcined oxide 7h at 1100 DEG C, is subsequently placed in vibrating ball-mill and crushes, obtains
It is the second material of 3500 mesh to granularity；
S3, into obtained second material be added using second material as the polyvinyl alcohol of benchmark 1.2wt%, then through etc. it is quiet
Pressure equipment adds 1.5 tons every square centimeter of pressure compression moulding to obtain third material, keeps vacuum in pressing process；
S4, third material is put into high temperature furnace and in N2Hot-pressing processing obtains 4 materials, high temperature furnace calcining under atmosphere
Temperature is 1320 DEG C, and the hot-pressing processing time is 7h, and calcining pressure is 120000kg/m2；
S5,4 materials are ground, molding is sliced and obtains water pump seal silicon nitride ceramic material.
In the water pump seal silicon nitride ceramic material of embodiment 1-3 preparation, product uniform microstructure, consistency is not small
In 97%, intensity 1000-1300MPa, hardness is greater than 17GPa.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (5)
1. a kind of preparation process of water pump seal silicon nitride ceramic material, which comprises the steps of:
S1,70-85 parts of silicon nitrides, 10-18 parts of talcum powder, 20-23 parts of silicon carbide ultrafine powders, 2-4 parts of carbonic acid are weighed by weight
Barium powder and using silicon carbide as benchmark 1.5-3wt% dehydrated alcohol be uniformly mixed, then be added 2-3 parts of zirconium dioxides, 0.5-1.5 parts
Titanium dioxide is sent into mist projection granulating in spray tower and obtains first material after being fully ground；
S2, first material is sent into high temperature furnace the calcined oxide 7-8h at 1100-1150 DEG C, is subsequently placed in powder in vibrating ball-mill
It is broken, obtain the second material that granularity is 3000-4000 mesh；
S3, into obtained second material be added using second material as the polyvinyl alcohol of benchmark 0.8-1.3wt%, then through etc. it is quiet
Pressure equipment adds 1.2-1.6 tons every square centimeter of pressure compression moulding to obtain third material, keeps vacuum in pressing process；
S4, third material is put into high temperature furnace and in N2Hot-pressing processing obtains 4 materials under atmosphere, and high temperature furnace calcination temperature is
1250-1350 DEG C, the hot-pressing processing time is 7-8h, and calcining pressure is 100000-150000kg/m2；
S5,4 materials are ground, molding is sliced and obtains water pump seal silicon nitride ceramic material.
2. the preparation process of water pump seal silicon nitride ceramic material according to claim 1, which is characterized in that the carbon
SiClx superfine powder includes that the silicon carbide ultrafine powder that partial size is 5-10 μm accounts for 70-85%, the silicon carbide ultrafine powder that partial size is 15-30 μm
10-20% is accounted for, partial size is that 40-60 μm of silicon carbide ultrafine powder accounts for 5-10%.
3. the preparation process of water pump seal silicon nitride ceramic material according to claim 1 or 2, which is characterized in that
In S1, the weight ratio of silicon nitride, talcum powder and silicon carbide ultrafine powder is 70-80:10-15:20.
4. the preparation process of water pump seal silicon nitride ceramic material according to claim 1 or 2, which is characterized in that
In S4, high temperature furnace calcination temperature is 1300-1320 DEG C, and calcining pressure is 120000-135000kg/m2。
5. the preparation process of water pump seal silicon nitride ceramic material according to claim 3, which is characterized in that in S4
In, high temperature furnace calcination temperature is 1300-1320 DEG C, and calcining pressure is 120000-135000kg/m2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410261609.4A CN104072150B (en) | 2014-06-12 | 2014-06-12 | A kind of preparation process of water pump seal silicon nitride ceramic material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410261609.4A CN104072150B (en) | 2014-06-12 | 2014-06-12 | A kind of preparation process of water pump seal silicon nitride ceramic material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104072150A CN104072150A (en) | 2014-10-01 |
| CN104072150B true CN104072150B (en) | 2019-07-02 |
Family
ID=51593804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410261609.4A Expired - Fee Related CN104072150B (en) | 2014-06-12 | 2014-06-12 | A kind of preparation process of water pump seal silicon nitride ceramic material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104072150B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106316406A (en) * | 2016-08-11 | 2017-01-11 | 安徽波浪岛游乐设备有限公司 | Preparation technology of anti-corrosive substrate for LED |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1537086A (en) * | 2001-07-24 | 2004-10-13 | ��ʽ���綫֥ | Wear-resistance silicon nitride member and method for manufacturing thereof |
| CN1856454A (en) * | 2003-09-25 | 2006-11-01 | 株式会社东芝 | Wear resistant member comprised of silicon nitride and process for producing the same |
| CN101100388A (en) * | 2007-07-17 | 2008-01-09 | 清华大学 | Silicon nitride ceramic material with high thermal conductivity and preparation method thereof |
| CN101318822A (en) * | 2008-07-04 | 2008-12-10 | 冷水江市明玉陶瓷工具有限责任公司 | Silicon nitride composite ceramics heater |
| CN102875153A (en) * | 2012-09-27 | 2013-01-16 | 宁波伏尔肯机械密封件制造有限公司 | Spray drying granulation method of silicon nitride ceramic powder used for mechanical sealing |
-
2014
- 2014-06-12 CN CN201410261609.4A patent/CN104072150B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1537086A (en) * | 2001-07-24 | 2004-10-13 | ��ʽ���綫֥ | Wear-resistance silicon nitride member and method for manufacturing thereof |
| CN1856454A (en) * | 2003-09-25 | 2006-11-01 | 株式会社东芝 | Wear resistant member comprised of silicon nitride and process for producing the same |
| CN101100388A (en) * | 2007-07-17 | 2008-01-09 | 清华大学 | Silicon nitride ceramic material with high thermal conductivity and preparation method thereof |
| CN101318822A (en) * | 2008-07-04 | 2008-12-10 | 冷水江市明玉陶瓷工具有限责任公司 | Silicon nitride composite ceramics heater |
| CN102875153A (en) * | 2012-09-27 | 2013-01-16 | 宁波伏尔肯机械密封件制造有限公司 | Spray drying granulation method of silicon nitride ceramic powder used for mechanical sealing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104072150A (en) | 2014-10-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101696112B (en) | Method for preparing medium and high-aluminum abrasion-resistant ceramic product by using rolling rod waste | |
| CN102584224B (en) | Preparation method of nanoscale zirconia ceramic powder for spraying | |
| CN104591766B (en) | A kind of wear-resistant ceramic material and preparation method thereof | |
| CN102311268B (en) | Highly compact ceramic ball of silicon carbide and preparation process thereof | |
| CN103086700A (en) | Preparation method of nano oxide ceramic hollow sphere used for thermal spraying | |
| CN104326749A (en) | High strength nanometer ceramic material and preparation method thereof | |
| CN102603272A (en) | Ceramic material and preparation method thereof | |
| CN103304221A (en) | Method for preparing inert porcelain ball by using aluminum oxide dust-recovery powder | |
| CN104072150B (en) | A kind of preparation process of water pump seal silicon nitride ceramic material | |
| CN102173753A (en) | Aluminum oxide ceramic friction material prepared from aluminum profile industrial waste residue and preparation method thereof | |
| CN104446400A (en) | Acid-alkali-resistant composite ceramic material and preparation method thereof | |
| CN106588001A (en) | High-performance ceramic material and preparation method thereof | |
| CN104671791A (en) | Method for preparing self-lubricating silicon carbide composite ceramic-based sealing material | |
| CN103145164B (en) | Preparation method of aluminum oxide powder for fine ceramics sintered at low temperature | |
| KR101363807B1 (en) | Base material for disk roll and manufacturing method thereof, disk roll and manufacturing method thereof, method for manufacturing glass | |
| CN104402467B (en) | Fire resistant special type pottery of a kind of oxidation-containing cerium and preparation method thereof | |
| CN105837187A (en) | A method of preparing a microcrystalline high-aluminium ball | |
| CN105565784A (en) | Ceramic grinding body and preparation method thereof | |
| CN108727058A (en) | A kind of organic-silicon-modified hollow ceramic microballon and its preparation and application | |
| CN104671789A (en) | Silicon carbide ceramic-based composite material for protective components and preparation method of silicon carbide ceramic-based composite material | |
| CN106242574A (en) | A kind of tungsten carbide-base composite ceramic die material and preparation method thereof | |
| CN103664152B (en) | Wear-resistant zirconium silicate medium ball and preparation method thereof | |
| CN106116618B (en) | A kind of preparation method of low expansion composite ceramic die material | |
| CN103964852A (en) | High-strength ceramic composite | |
| CN102516940A (en) | Production method for high strength medium aluminum grinding balls added with adhesive |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190702 Termination date: 20200612 |