CN1775701B - Mould core with superhard coating - Google Patents
Mould core with superhard coating Download PDFInfo
- Publication number
- CN1775701B CN1775701B CN200410052362A CN200410052362A CN1775701B CN 1775701 B CN1775701 B CN 1775701B CN 200410052362 A CN200410052362 A CN 200410052362A CN 200410052362 A CN200410052362 A CN 200410052362A CN 1775701 B CN1775701 B CN 1775701B
- Authority
- CN
- China
- Prior art keywords
- die
- plated film
- superhard
- core substrate
- coating
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Abstract
The invention relates to a mould kernel applying super-hard coating, comprising a mould kernel substrate and a coating, where the coating adheres to the surface of the mould kernel substrate and comprises a coating substrate crystalloid-free SiCN material and nano craystallized SiCN particles scattered in the coating substrate.
Description
[technical field]
The invention relates to a kind of die, especially about a kind of die with superhard plated film of the high rigidity and the easy demoulding with superhard plated film.
[background technology]
Die is widely used in the compression molding processing procedure, particularly make the opticglass product, as aspheric surface glass lens, globe lens, prism etc., adopt direct compression molding (DirectPress-molding) but technology direct production opticglass product, need not subsequent process steps such as polishing, polishing, can enhance productivity greatly and output, and good product quality.But directly compression molding method requires very high for the chemical stability of die, thermal shock resistance, physical strength, surface flatness etc.Therefore, in fact the development of compression molding technology depends primarily on die material and die improvement of Manufacturing Technology.Die for compression molding generally has following requirement:
(1) when high temperature, has favorable rigidity, anti-mechanical impact strength and enough hardness;
(2) do not crack and be out of shape reaching under the thermal shocking of rapid heating refrigerative die repeatedly;
(3) chemical reaction does not take place in die molded surface and opticglass when high temperature, does not stick glass;
(4) high temperature oxidation does not take place;
(5) good processability easily is processed into the profile of high precision and high surface finish;
(6) cost is low.
The tradition die adopts stainless steel or refractory alloy as the die material mostly, and high temperature oxidation takes place this die easily, under thermal shocking effect repeatedly, grain growth can take place, thereby glass is cohered in die surface roughen.
For addressing the above problem, nonmetal and superhard alloy is used to die.According to reports, silicon carbide (SiC), silicon nitride (Si
3N
4), titanium carbide (TiC), wolfram varbide (WC) and tungsten-cobalt carbide alloy be used to make die.Yet above-mentioned various carbide ceramics hardness are very high, are difficult to be processed into needed profile, particularly high precision aspheric surface shape.And superhard alloy uses for some time also high temperature oxidation may take place afterwards except that being difficult to processing.
Therefore, be die core substrate with carbide or superhard alloy, the composite structure mould core that its surface is formed with other material coating or coating becomes new developing direction.United States Patent (USP) the 4th, 685, No. 948 a kind of composite structure mould cores that are used for direct compression molding opticglass product of announcement.It adopts high-intensity superhard alloy, carbide ceramics or sintering metal as die core substrate, and be formed with iridium (Ir) thin film layer in the mold pressing surface of die, or the alloy firm layer of iridium (Ir) and platinum (Pt), rhenium (Re), osmium (Os), rhodium (Rh) or ruthenium (Ru), or ruthenium (Ru) thin film layer, or the alloy firm layer of ruthenium (Ru) and platinum (Pt), rhenium (Re), osmium (Os), rhodium (Rh).
But above-mentioned precious metal or its alloy resource rareness cost an arm and a leg, and make the die cost improve; And, carbide or sintering metal are as die core substrate, be to form by sintering, need to add cobalt (Co), nickel (Ni) or molybdenum metallic elements such as (Mo) as additive in sintering process, after the long-time use of die, these elements will be by above-mentioned layer of precious metal like this, be diffused into the die outside surface, thereby the glass that forms with mold pressing reacts, and influences the precision of die and the quality of compression molding glassy product, even the work-ing life with die and modelling mould is penetrated in influence.
In view of this, provide a kind of die to be necessity in fact with superhard plated film of the high rigidity and the easy demoulding.
[summary of the invention]
The object of the present invention is to provide a kind of die with superhard plated film of the high rigidity and the easy demoulding.
The technical scheme of technical solution problem of the present invention is: a kind of die with superhard plated film is provided, and it comprises a die core substrate and a plated film.This plated film is attached to the die core substrate top layer, and this plated film is by coating material decolorizing carbon silicon nitride material and be dispersed in nano crystals carbonitride of silicium granulometric composition in the coating material.
Compared to prior art, the beneficial effect that the present invention has the die of superhard plated film is: the nano particle that is dispersed in the coating material has superhard characteristic, help to increase the surperficial mechanical characteristics of die, and in use, nano particle pushes to the next door because of being subjected to external force effect meeting, but the coating material on next door is softer because of hardness, can bear extruding, unlikely mold damage.Simultaneously, nano particle mostly is the covalency bond, and resistance of oxidation is stronger, can prevent that also mould is at high temperature impaired.In addition, contain a large amount of sp between the carbon atom of the decolorizing carbon silicon nitride material of composition coating material
2Bond makes it have good self-lubricating property, so mould-pressed glass product is easy to the demoulding.
[description of drawings]
Fig. 1 the present invention has the die structural representation of superhard plated film.
[embodiment]
Seeing also Fig. 1, is the die structural representation that the present invention has superhard plated film.This die 10 comprises that one has the die core substrate 11 of smooth flat and covers the plated film 12 of this smooth flat.This die core substrate 11 can be passed through SiC, Si
3N
4, ZrO
2, Al
2O
3, TiN, TiO
2, TiC or B
4The C ceramic main wants material to get through the sintering manufacturing, is that main raw gets through the sintering manufacturing by the WC superhard alloy perhaps, is that main raw gets through the sintering manufacturing by the WC-Co sintering metal perhaps.This plated film 12 is made of coating material 13 and nano particle 14, and this nano particle 14 is dispersed in the coating material 13.This coating material 13 is decolorizing carbon silicon nitride material (amorphous-Silicon CarbonNitride, abbreviate a-SiCN as), this nano particle 14 is nano crystals carbonitride of silicium particle (nano crystalline-Silicon Carbon Nitride).
Contain a large amount of sp between the a-SiCN carbon atom of composition coating material 13
2Bond makes it have good self-lubricating property, and therefore, mould-pressed glass product is easy to the demoulding; And because of the intensity of a-SiCN a little less than, when die uses, can protect die to avoid damaging because of powerful mechanical external force.
Be dispersed in nano particle 14 (nano crystals carbonitride of silicium particle) in the coating material 13 because of having superhard characteristic, help to increase the surperficial mechanical characteristics of die 10, and in use, nano particle 14 pushes to the next door because of being subjected to external force effect meeting, but the coating material 13 on next door is softer because of hardness, can bear extruding, unlikely mold damage.
Simultaneously, nano particle 14 mostly is the covalency bond, and resistance of oxidation is stronger, also can prevent that mould is at high temperature impaired.
In this die 10, die core substrate 11 is prepared from by sintering or other working method, plated film 12 can use Plasma Enhanced Chemical Vapor Deposition (PECVD) (plasma chemicalvapor deposition, abbreviation CVD) deposition forms, microwave plasma chemical vapour deposition process (micro wave plasma chemical vapor deposition, be called for short MW CVD) for example; Also can use sputter (sputtering) method to be deposited on die core substrate 11 surfaces, can increase die work-ing life and be easy to the demoulding.
Superhard plated film of the present invention not only can be used for the die of mold pressing smooth flat opticglass product, also can be applicable to the molded product die of other different shapes, different purposes.
Claims (6)
1. die with superhard plated film, it comprises a die core substrate and a plated film, it is characterized in that: this plated film is by coating material decolorizing carbon silicon nitride material and be dispersed in nano crystals carbonitride of silicium granulometric composition in this coating material.
2. the die with superhard plated film as claimed in claim 1 is characterized in that: this plated film adopts the plasma chemical vapor deposition process deposition to form.
3. the die with superhard plated film as claimed in claim 1 is characterized in that: this plated film adopts microwave plasma chemical CVD (Chemical Vapor Deposition) method deposition to form.
4. the die with superhard plated film as claimed in claim 1 is characterized in that: this plated film adopts the jet-plating method deposition to form.
5. the die with superhard plated film as claimed in claim 1 is characterized in that: this die core substrate is prepared by sintering method.
6. the die with superhard plated film as claimed in claim 1 is characterized in that: this die core substrate is mainly by SiC, Si
3N
4, ZrO
2, Al
2O
3, TiN, TiO
2, TiC or B
4The C pottery makes, and is perhaps mainly made by the WC superhard alloy, is perhaps mainly made by the WC-Co sintering metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200410052362A CN1775701B (en) | 2004-11-16 | 2004-11-16 | Mould core with superhard coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200410052362A CN1775701B (en) | 2004-11-16 | 2004-11-16 | Mould core with superhard coating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1775701A CN1775701A (en) | 2006-05-24 |
| CN1775701B true CN1775701B (en) | 2010-05-26 |
Family
ID=36765444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200410052362A Expired - Fee Related CN1775701B (en) | 2004-11-16 | 2004-11-16 | Mould core with superhard coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1775701B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107417075B (en) * | 2017-08-01 | 2020-08-18 | 长沙市萨普新材料有限公司 | Curved glass hot bending forming structure, heat conducting part thereof and manufacturing method of curved glass |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002274867A (en) * | 2001-03-13 | 2002-09-25 | Canon Inc | Optical glass element press forming die and optical glass element |
| CN1377988A (en) * | 2002-01-10 | 2002-11-06 | 上海交通大学 | Super hard nano composite film and its producing process |
| JP2003320552A (en) * | 2002-04-30 | 2003-11-11 | Mitsubishi Materials Corp | Mold assembly for molding optical disk |
| JP4331798B2 (en) * | 1997-04-05 | 2009-09-16 | アラージー・セラピューティックス・リミテッド | Allergen prescription |
-
2004
- 2004-11-16 CN CN200410052362A patent/CN1775701B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4331798B2 (en) * | 1997-04-05 | 2009-09-16 | アラージー・セラピューティックス・リミテッド | Allergen prescription |
| JP2002274867A (en) * | 2001-03-13 | 2002-09-25 | Canon Inc | Optical glass element press forming die and optical glass element |
| CN1377988A (en) * | 2002-01-10 | 2002-11-06 | 上海交通大学 | Super hard nano composite film and its producing process |
| JP2003320552A (en) * | 2002-04-30 | 2003-11-11 | Mitsubishi Materials Corp | Mold assembly for molding optical disk |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1775701A (en) | 2006-05-24 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100526 Termination date: 20141116 |
|
| EXPY | Termination of patent right or utility model |