CN101412574A - Molding die of molding glass and regeneration method thereof - Google Patents
Molding die of molding glass and regeneration method thereof Download PDFInfo
- Publication number
- CN101412574A CN101412574A CNA2007101631932A CN200710163193A CN101412574A CN 101412574 A CN101412574 A CN 101412574A CN A2007101631932 A CNA2007101631932 A CN A2007101631932A CN 200710163193 A CN200710163193 A CN 200710163193A CN 101412574 A CN101412574 A CN 101412574A
- Authority
- CN
- China
- Prior art keywords
- media layer
- protective membrane
- die
- etchant
- model core
- 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
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
- C03B11/06—Construction of plunger or mould
- C03B11/08—Construction of plunger or mould for making solid articles, e.g. lenses
- C03B11/084—Construction of plunger or mould for making solid articles, e.g. lenses material composition or material properties of press dies therefor
- C03B11/086—Construction of plunger or mould for making solid articles, e.g. lenses material composition or material properties of press dies therefor of coated dies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- ing And Chemical Polishing (AREA)
Abstract
The invention provides a molded glass mold core. The mold core comprises a substrate, a first intermediary layer and a protective film, wherein the first intermediary layer is arranged on the surface of the substrate and is made from titanium or other materials easily eroded by first erosion liquid; the first erosion liquid is a solution containing hydrofluoric acid; and the protective film is arranged on the surface of the first intermediary layer and is made from platinum-iridium, iridium-rhenium, tantalum-ruthenium, molybdenum-ruthenium, molybdenum-rhenium or molybdenum-hafnium alloy. The invention also discloses a regeneration method for the molded glass mold core. The regeneration method for the mold core comprises the following steps: removing the protective film and the intermediary layer by the first erosion liquid without damaging the substrate, and then re-plating the intermediary layer and the protective film to achieve the regeneration of the mode core.
Description
Technical field
The present invention is relevant with the die (Molding Die) of moulded glass (Molding Glass), more detailed a kind of die produced glass model core and the renovation process thereof of being meant.
Background technology
At present, the structure of known die produced glass model core comprises ground at least and is located at the protective membrane of substrate surface, or sets up between ground and protective membrane in order to increase protective membrane tack or for asking processing, moulding to be easy to media layer (Buffer Layer).The formation material of ground comprises stainless steel, silicon carbide and wolfram varbide (WC) etc.; and the material of protective membrane generally comprises hard ceramics such as amorphous carbon, silicon carbide or silicon nitride, precious metal plated film etc.; the precious metal plated film is as the precious metal alloys with platinum iridium alloy (Pt-Ir) series; or be the precious metal alloys of alloy ingredient, or in the precious metal protective membrane of iridium rhenium alloys, iridium ruthenium alloy series, add again as ceramics components such as chromium nitride (CrN), tantalum nitride (TaN), other nitride or aluminum oxide with iridium (Ir) or ruthenium (Ru).
Secondly, the making of die produced glass model core, design must be considered following points basically: (1) release: avoid producing reaction, adhesion phenomenon with glass; (2) enough hardness and physical strength: to form glass and to avoid surperficial scratch; (3) high-temperature stability: avoid in model atmosphere, taking place decomposing phenomenon and atmosphere reaction; (4) resistance to sudden heating: to stand the thermal cycling in the model process; (5) workability: to be processed to form the particular optical face and to consider process period and cost; And (6) die life-span: the prolongation die life-span can reduce cost.
But, during the actual fabrication die, know that on business die all has the protective membrane that one deck contains the precious metal composition; and its making processes is to use sputtering method to make; causing material therefor is the high precious metal of price, and it is a lot of to cause cost of manufacture to improve, and the utmost point is unfavorable for market competition.Moreover after when protective membrane is impaired, must removing in the precision sizing mode once more the coating protective membrane reach the regenerated function, and the tooling cost that it increased is with to make new die very nearly the same.
Secondly, the regeneration techniques of known die is mainly used in carbon-containing protective film, obtains the die surface regeneration after will containing the carbon film oxidation with electric paste etching, and can will contain siliceous media layer simultaneous oxidation under the carbon film in the etching process and the extra polished finish of needs.Again; or the passivity of utilizing precious metal more not weather; on the die ground, be media layer with precious metal or its alloy; surface coating hard ceramic film is a protective membrane; when protective membrane is impaired, remove with acid or alkali; and stay the media layer of precious metal or its alloy, then coating protective membrane and obtain regeneration once more.If yet the dark and media layer of damage still need manage to divest precious metal alloys and not damage the die ground.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of die produced glass model core and renovation process thereof, and its cost of manufacture is low, and still can meet the employed die requirement of high-accuracy glass model eyeglass.
For reaching aforesaid purpose, the invention provides a kind of die produced glass model core, include ground; First media layer is located at this substrate surface, and easily made by the first etchant erosive material by titanium or other, this first etchant is the solution of hydrofluoric acid containing; And protective membrane, be located at this first media layer surface.
Further, wherein, also be provided with second media layer between this first media layer and the protective membrane, by can be made by the second etchant erosive material, this second etchant be to contain (NH
4)
2Ce (NO
3)
6Acidic solution.
In addition, the present invention also provides a kind of renovation process of die produced glass model core, removes protective membrane and first media layer with this first etchant and does not damage ground, heavily plates this first media layer and protective membrane again and obtains die regenerated effect.
Moreover; the renovation process of die produced glass model core of the present invention; can also be earlier remove protective membrane and second media layer and do not damage first media layer and ground with this second etchant; remove first media layer and do not damage ground with this first etchant again, heavily plate this first media layer, second media layer and protective membrane then and obtain die regenerated effect.
By such scheme as can be seen, die produced glass model core provided by the present invention and renovation process thereof are removed first media layer with first etchant, remove second media layer with second etchant, and do not damage ground, therefore can reduce manufacturing cost in a large number, and still meet the requirement of the employed die of high-accuracy glass model eyeglass, when in technical field, needing to promote mass production, have feasibility and competitive power really.
Description of drawings
Fig. 1 is the combination synoptic diagram of preferred embodiment of the present invention;
Fig. 2 is the combination synoptic diagram of another preferred embodiment of the present invention;
Fig. 3 is the schema of the renovation process of preferred embodiment die produced glass model core of the present invention;
Fig. 4 is the schema of the renovation process of another preferred embodiment die produced glass model core of the present invention.
Embodiment
Below, lift the some preferred embodiments of the present invention, and conjunction with figs. is described in further detail as the back:
See also shown in Figure 1; the die produced glass model core 10 of preferred embodiment of the present invention; comprise ground 12; be to make based on the superhard alloy material of wolfram varbide (WC); first media layer 14; with the sputtering method sputter in these ground 12 surfaces; its material is a titanium (Ti) or other are easily by the first etchant erosive material; its thickness can be 0.03～0.25 micron; this first etchant contains the aqueous solution that volume percent is 20～40vol.% hydrofluoric acid (HF); protective membrane 16; with the sputtering method sputter in these first media layer, 14 surfaces; its composition comprises platinum (Pt)-iridium (Ir); iridium (Ir)-rhenium (Re); tantalum (Ta)-ruthenium (Ru); molybdenum (Mo)-ruthenium (Ru); a kind of in molybdenum (Mo)-rhenium (Re) or molybdenum (Mo)-hafnium (Hf) alloy; present embodiment is made by iridium (Ir) and rhenium (Re) metal alloy material; wherein the atomic percent of iridium (Ir) accounts for 80～85%; and the thickness range of this protective membrane 16 is between 0.1～1.0 micron (μ m); its surface also is provided with model face 22; be groove, in order to usefulness as moulded glass.And this first media layer 14 can increase the tack of protective membrane 16 and ground 12, so as to prolonging the work-ing life of die 10.
Below, utilize the erosional competency of first etchant (hydrofluoric acid aqueous solution) test of different proportion of composing, result such as table 1 to first media layer 14:
Table 1
Wherein, the thickness of this first media layer 14 is 0.05 micron; and the thickness of this protective membrane 16 is 0.25 micron; the atomic percent of its moiety is: iridium: rhenium=85:15; actual in after firmly the K-VC89 model glass of field Optical Co., Ltd (SUMITA) cooperates 500 models tests of these die produced glass model core 10 mould model eyeglasses; after corroding 4 hours with first etchant (20vol.% hydrofluoric acid); these first media layer, 14 solubilized; protective membrane 16 then breaks away from ground 12; these ground 12 surfaces are not impaired; after row plates first media layer 14 and protective membrane 16 again; implement 500 model tests once more, obtain this first media layer, 14 dissolvings equally; protective membrane 16 breaks away from; ground 12 surperficial int results.
As from the foregoing, the concentration of hydrofluoric acid has determined the erosion rate of first media layer 14 in this first etchant.After this first etchant corrodes first media layer 14, this protective membrane 16 is separated with ground 12, and the effect of reaching demoulding.The chemical equation of above-mentioned chemical reaction is:
Ti+2HF→TiF
2+H
2↑
Secondly; if the atomic percent of these protective membrane 16 moietys changes into: iridium: rhenium=50:50; cooperate 1000 model tests of these die produced glass model core 10 mould model eyeglasses with the K-VC89 model glass of living field Optical Co., Ltd again; after corroding 2 hours with first etchant (20vol.% hydrofluoric acid) aqueous solution; these first media layer, 14 solubilized; protective membrane 16 then breaks away from ground 12; these ground 12 surfaces are not impaired; after row plates first media layer 14 and protective membrane 16 again; implement the test of 1000 models once more, can reach the life-span at least 5000 times through four demouldings and heavy plating regeneration so repeatedly.
In addition, this ground 12 is immersed first etchant after (containing 40vol.% hydrofluoric acid) 15 days, take out and examine under a microscope and no change, show that this first etchant can't corrode ground 12.And, if will plate the Cr0.2 microns based on the superhard alloy surface ground 12 of wolfram varbide, or the Ni0.15 micron, or the Mo0.24 micron, or immerse first etchant behind the Re0.16 micron after (containing 20vol.% hydrofluoric acid) 4 hours, take out and examine under a microscope and no change.In other words, first etchant of hydrofluoric acid containing is to the tangible erosional competency of tool not of the metal material beyond the titanium.
As shown in Figure 2; die produced glass model core 30 for another preferred embodiment of the present invention; its structure is identical with die produced glass model core 10 among Fig. 1 substantially; difference is in and also is provided with second media layer 36 between its first media layer 32 and protective membrane 34; with the sputtering method sputter in these first media layer, 32 surfaces; easily made by the second etchant erosive material by chromium (Cr), molybdenum, rhenium, nickel one of them or other, thickness is 0.1 micron, and this second etchant is to contain (the NH that weight percent is 6wt.%
4)
2Ce (NO
3)
6Reaching volume percent is the acidic solution of the aqueous nitric acid of 6vol.%, and in these second media layer, 36 surfaces, its atomic percent of forming material is its protective membrane 34: molybdenum (Mo): 0.6 micron of ruthenium (Ru)=38:62, thickness with the sputtering method sputter.
Whereby; corrode die produced glass model core after 30 minutes with this second etchant; these second media layer, 36 solubilized; protective membrane 34 breaks away from; and this first media layer 32 can't be etched and can protect ground 38; then corrode with this first etchant (40vol.% hydrofluoric acid aqueous solution) again; this first media layer 32 can dissolve rapidly; corrode after 5 minutes and take out; these ground 38 surfaces can be not impaired; in this way (second; first etchant successively corrodes) can significantly reduce and remove first; second media layer 32; 36 and time of protective membrane 34, carried out renovation process as described later.
Moreover; the renovation process of die produced glass model core of the present invention; with regard to this die produced glass model core 10; as shown in Figure 3; mainly utilize first etchant to remove protective membrane 16 and first media layer 14 and do not damage ground 12, heavily plate this first media layer 14 with sputtering method again and can obtain die produced glass model core 10 regenerated effects with protective membrane 16.
As shown in Figure 4; with regard to die produced glass model core 30; its renovation process is main to be removed protective membrane 34 and second media layer 36 and not to damage first media layer 32 with second etchant earlier; remove first media layer 32 and do not damage ground 38 with first etchant again, heavily plate this first media layer 32, second media layer 36 and protective membrane 34 with sputtering method then and can obtain die produced glass model core 30 regenerated effects.
As from the foregoing, die produced glass model core provided by the present invention and renovation process thereof can reduce manufacturing cost in a large number, and still meet the requirement of the employed die of high-accuracy glass model eyeglass, when in technical field, needing to promote mass production, have feasibility and competitive power really.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (9)
1, a kind of die produced glass model core is characterized in that, includes:
Ground;
First media layer is located at this substrate surface, and is made by the first etchant erosive material that can be contained hydrofluoric acid; And
Protective membrane is located at this first media layer surface.
2, die produced glass model core as claimed in claim 1 is characterized in that, described ground is to be that main superhard alloy material is made by wolfram varbide.
3, die produced glass model core as claimed in claim 1 is characterized in that, described first media layer is to be made by the titanium material.
4, die produced glass model core as claimed in claim 1 is characterized in that, the composition of described protective membrane comprises platinum-iridium, iridium-rhenium, tantalum-ruthenium, molybdenum-ruthenium, molybdenum-rhenium or molybdenum-hafnium alloy.
5, die produced glass model core as claimed in claim 1 is characterized in that, described first etchant is to contain the hydrofluoric acid aqueous solution that volume percent is 20～40vol.%.
6, die produced glass model core as claimed in claim 1 is characterized in that, also is provided with second media layer between described first media layer and the protective membrane, by being contained (NH
4)
2Ce (NO
3)
6The second etchant erosive material of acidic solution is made.
7, die produced glass model core as claimed in claim 6 is characterized in that, described second media layer is made by chromium, molybdenum, rhenium or nickel.
8, a kind of renovation process of die produced glass model core according to claim 1 is characterized in that, mainly is to remove protective membrane and first media layer and do not damage ground with this first etchant, heavily plates this first media layer and protective membrane again and makes die regeneration.
9, a kind of renovation process as die produced glass model core as described in the claim 6; it is characterized in that; mainly be earlier to remove protective membrane and second media layer and do not damage first media layer and ground with this second etchant; remove first media layer and do not damage ground with this first etchant again, heavily plate this first media layer, second media layer and protective membrane then and make die regeneration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101631932A CN101412574A (en) | 2007-10-16 | 2007-10-16 | Molding die of molding glass and regeneration method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101631932A CN101412574A (en) | 2007-10-16 | 2007-10-16 | Molding die of molding glass and regeneration method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101412574A true CN101412574A (en) | 2009-04-22 |
Family
ID=40593345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101631932A Pending CN101412574A (en) | 2007-10-16 | 2007-10-16 | Molding die of molding glass and regeneration method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101412574A (en) |
-
2007
- 2007-10-16 CN CNA2007101631932A patent/CN101412574A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1216817C (en) | Metal mold of moulding glass | |
| CN101412574A (en) | Molding die of molding glass and regeneration method thereof | |
| JP4230481B2 (en) | Mold for optical element molding | |
| TWI352690B (en) | The molding die of molding glasses and its recycli | |
| CN101121572B (en) | Die produced glass model core and regeneration method thereof | |
| JP3630375B2 (en) | Mold for glass molding | |
| JP4959306B2 (en) | Glass mold | |
| JP2785888B2 (en) | Mold for optical element molding | |
| JPH10231129A (en) | Mold for press molding and glass molded product by the mold | |
| CN100422101C (en) | Mould core for moulding glass | |
| CN1834043B (en) | Mould core of moulded glass lens | |
| JP2009073693A (en) | Optical element-molding die, and method for producing the same | |
| TW200806589A (en) | The molding die of molding glasses and its recycling method | |
| JP2001122630A (en) | Optical element forming die and method for regenerating the same | |
| JP6423056B1 (en) | Imprint mold and method for producing imprint mold | |
| JP5621436B2 (en) | Mold, manufacturing method thereof, element and optical element | |
| JP5570047B2 (en) | Optical glass element molding die and manufacturing method thereof | |
| JP4720731B2 (en) | Mold | |
| KR20080090018A (en) | Die for press forming of glass and method of manufacturing the same | |
| JP4347594B2 (en) | Optical element molding method | |
| JP6681722B2 (en) | Mold for molding, method for manufacturing mold for molding, and method for recycling mold for molding | |
| CN1331786C (en) | Mold core for molding glass | |
| JPH01147084A (en) | Production of mold for molding optical element | |
| CN2789246Y (en) | Moulding glass press work | |
| TWI280953B (en) | Mold for press-molding glass element |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20090422 |