CN100420966C - Light surface glass titanium metal planar reflector and a special glass - Google Patents

Light surface glass titanium metal planar reflector and a special glass Download PDF

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Publication number
CN100420966C
CN100420966C CNB2006101143760A CN200610114376A CN100420966C CN 100420966 C CN100420966 C CN 100420966C CN B2006101143760 A CNB2006101143760 A CN B2006101143760A CN 200610114376 A CN200610114376 A CN 200610114376A CN 100420966 C CN100420966 C CN 100420966C
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titanium
glass
catoptron
metal substrate
titanium metal
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CN101021580A (en
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高祀建
关铭
朱永昌
刘峻
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China Building Materials Academy CBMA
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China Building Materials Academy CBMA
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    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/062—Glass compositions containing silica with less than 40% silica by weight
    • C03C3/07—Glass compositions containing silica with less than 40% silica by weight containing lead

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
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Abstract

The invention discloses a lightweight surface glass Ti metal plane reflector, comprising Ti metal substrate, special type glass layer and reflecting film, where the Ti metal substrate is of pure Ti (TA1,TA2 or TA3), or Ti alloy (TC1, TC2, TC3, TC4, or TC6), and is of a plate structure or of a cellular structure with lightweight design, and the Ti substrate surface is processed by machining or laser method and has roughness of 0.8-15 mu m, and the special type glass layer is 0.2-2.5mm thick and comprises SiO2 25-40wt%, PbO 50-70wt%,R2 O1-5wt%,RO 0-2wt%, and As2O3 0.2-0.5wt%, and has expansion coefficient of 80-90*10-7/deg.C; the reflecting film is a metal reflecting film vacuum-plated on the special type glass layer and having high reflection ratio. And its advantages: properties of special type glass and Ti metal match, its structure is simple, convenient to install and debug, and applied to optical systems in various fields of spaceflight, aviation, weapon, etc.

Description

A kind of lightweight surfaces vitrifacation titanium metal planar reflector and a kind of special glass
Technical field
The present invention relates to optical device, be specifically related to the lightweight surfaces vitrifacation titanium metal planar reflector of a kind of military optics system, the invention still further relates to the special glass prescription that uses in this catoptron.
Background technology
Continuous development along with technology such as precision guidance, fire control, radar, spacer remote sensings, system has proposed requirements at the higher level to military optics, require catoptron in the electromagnetic wave band scope of broad, good image quality to be arranged, except satisfying the optics requirement, also require to increase bore, alleviate mirror quality simultaneously and improve imaging stability.
At present catoptron mainly contains: 1. glass reflector.This scheme adopts glass as catoptron, bonds on the metallic substrates with epoxy resin.Glass is traditional optical material, has good optical performance and optics processability, and the reflecting mirror surface shape quality of making can meet the demands.But because glass material intensity and rigidity are low,, therefore cause device volume weight and inertia all bigger, debug difficulty, be not suitable for light reflection mirror so it is indeformable to guarantee material to increase thickness.2. aluminium alloy light reflection mirror.Because the expansion coefficient of aluminium alloy is big, yielding, make the poor stability of optical system.3. titanium alloy catoptron.This catoptron is provided with a glassy layer on the titanium base, glass is K9 glass.Titanium alloy density is little, rigidity is high and have good thermal stability, is the ideal material of light reflection mirror, but since the expansion coefficient of K9 glass and titanium there is some difference, make glass produce and be out of shape, influenced optical system stability.
Summary of the invention
The objective of the invention is above problem, a kind of lightweight surfaces vitrifacation titanium catoptron is provided at the prior art existence.
Lightweight surfaces vitrifacation titanium catoptron of the present invention is made of titanium metal substrate, special glass layer and reflective coating, and wherein said special glass expansion coefficient is 80-90 * 10 -7/ ℃, softening point is 450-650 ℃, consists of: SiO 225-40wt%, PbO52.5-70wt%, R 2O 1-5wt%, RO 0-2wt%, As 2O 30.2-0.5wt%, wherein R is K, Na, Mg or Ca.
Described titanium metal substrate is pure titanium TA1, TA2 or TA3, or titanium alloy T C1, TC2, TC3, TC4 or TC6.The titanium substrate is cellular structure dull and stereotyped or for having light-weight design.
Described special glass layer thickness is 0.2-2.5mm.Rear surface roughness 0.8-15 μ m is handled in processing in the titanium metal substrate surface.
Another purpose of the present invention provides a kind of special glass that can be used in the above-mentioned catoptron.
Special glass of the present invention, its expansion coefficient are 80-90 * 10 -7/ ℃, softening point is 450-650 ℃.Consist of: SiO 225-40wt%, PbO52.5-70wt%, R 2O 1-5wt%, RO 0-2wt%, As 2O 30.2-0.5wt%, wherein R is K, Na, Mg or Ca.
The invention has the advantages that special glass and titanium Performance Match, reflecting mirror surface shape steady quality, (can directly be connected) simple in structure, easy for installation, debug the reliability height with screw.
Description of drawings
Fig. 1 is the structural representation of lightweight surfaces vitrifacation titanium catoptron.
Embodiment:
The invention provides a kind of lightweight surfaces vitrifacation titanium catoptron, referring to shown in Figure 1, this catoptron is made of titanium metal substrate 1, special glass layer 2 and reflective coating 3.Described titanium metal substrate 1 is by pure titanium (TA1, TA2, TA3) or titanium alloy (TC1, TC2, TC3, TC4, TC6) be material, titanium metal substrate 1 is cellular structure dull and stereotyped or for having light-weight design, this structure makes catoptron have enough intensity, has alleviated weight simultaneously; Described special glass layer 2 is that thickness is the special glass of 0.2-2.5mm, expansion coefficient and titanium metal substrate 1 matched.Described reflective coating 3 is the metallic reflective coating of vacuum plating high reflectance on special glass layer 2.
In the lightweight surfaces vitrifacation titanium catoptron process of the present invention, adopt machinery or laser means titanium metal substrate 1 surface to be processed processing, surfaceness 0.8-15 μ m.Glassy layer 2 adopts special glass, and the preferred glass composition is 25-40wt%, PbO52.5-70wt%, R 2O 1-5wt%, RO 0-2wt%, As 2O 30.2-0.5wt%, R are K, Na Mg or Ca, and expansion coefficient is 80-90 * 10 -7/ ℃, with titanium expansion coefficient matched, softening point is 450-650 ℃.
Concrete grammar is: the special glass preparation method adopts the melt cooling method, glass batch is introduced thing and be can be oxide, carbonate or nitrate, batch is through fully stirring, mix, put into alumina crucible or platinum crucible, founded 8-10 hour at 1250-1450 ℃, and stir the assurance good homogeneous, melt temperature is about 1000-1400 ℃ during casting.Annealing temperature is about 400-600 ℃.Titanium metal substrate need be processed processing on the surface, surfaceness 0.8-15 μ m.Glass and metallic substrates carried out surface treatment and through special high-temperature technology fusion.Glass and metallic substrates closely link into an integrated entity behind the sintering.Again glassy layer is ground to 0.2-2.5mm and polishing, at last plating high reflecting metal film in vacuum coating equipment.
Example 1:
The special glass composition is SiO 225wt%, PbO70wt%, Na 2O1.2wt%, K 2O1wt%, MgO2.0wt%, As 2O 30.2wt%, wherein, PbO Pb 3O 4Introduce Na 2O Na 2CO 3Introduce K 2O K 2CO 3Introduce, MgO introduces with basic magnesium carbonate, and all the other compositions are introduced with oxide.Introduce thing and adopt analysis pure chemistry reagent.Raw material is fully mixed, be added to temperature and be in 1260 ℃ the platinum crucible, melting time is 10 hours, and stir the assurance good homogeneous, and melt temperature is about 1050 ℃ during casting, and annealing temperature is 420 ℃, can obtain chunk glass, make the 2mm glass plate through grinding, polishing again.
The employing industry standard is measured, and the expansion coefficient of this glass is 89 * 10 -7/ ℃, softening point is 460 ℃.
Titanium metal substrate is selected the TC4 material for use, carries out Precision Machining earlier, surfaceness 1.6 μ m.
Glass and titanium metal substrate are cleaned with alcohol and acetone, carrying out physical chemistry handles, surface activation process: electric furnace is put at the titanium alloy-based end and glass, programming rate with 3 ℃/min rises to 400 ℃, be incubated 1 hour then, programming rate with 2 ℃/min rises to 500 ℃ again, be incubated 2.5 hours then, speed with 10 ℃/h is cooled to 420 ℃ again, being incubated after 4 hours again, the speed with 10 ℃/h is cooled to 200 ℃, the blowing out cooling is come out of the stove when temperature is reduced to room temperature, and the mirror glass layer behind the sintering is connected with titanium alloy closely, the interface does not have bubble, and glass does not burst.
Glassy layer is milled to 0.2mm and precise polished, and face shape reaches requirement.Plating highly reflecting films in vacuum coating equipment are finally made catoptron at last.This reflecting mirror surface shape steady quality, optical system good stability in the use meets the military optics system requirements.
Example 2:
The special glass composition is SiO 240wt%, PbO52.5wt%, Na 2O2.5wt%, K 2O2.5wt%, MgO2.0wt%, As 2O 30.5wt%, PbO Pb 3O 4Introduce Na 2O Na 2CO 3Introduce K 2O K 2CO 3Introduce, MgO introduces with basic magnesium carbonate, and all the other compositions are all introduced with oxide.Introduce thing and adopt analysis pure chemistry reagent.Raw material is fully mixed, be added to temperature and be in 1450 ℃ the platinum crucible, melting time is 8 hours, and stir the assurance good homogeneous, and melt temperature is about 1350 ℃ during casting, and annealing temperature is 550 ℃, can obtain chunk glass, make the 3mm glass plate through grinding, polishing again.The employing industry standard is measured, and the expansion coefficient of this glass is 80 * 10 -7/ ℃, softening point is 600 ℃.
Titanium metal substrate is selected the TA2 material for use, carries out Precision Machining earlier, surfaceness 10 μ m.
Glass and titanium metal substrate are cleaned with alcohol and acetone, carrying out physical chemistry handles, surface activation process: electric furnace is put at the titanium alloy-based end and glass, programming rate with 3 ℃/min rises to 400 ℃, be incubated 1 hour then, programming rate with 2 ℃/min rises to 600 ℃ again, be incubated 2.5 hours then, speed with 10 ℃/h is cooled to 520 ℃ again, being incubated after 4 hours again, the speed with 10 ℃/h is cooled to 200 ℃, the blowing out cooling is come out of the stove when temperature is reduced to room temperature, and the mirror glass layer behind the sintering is connected with titanium alloy closely, the interface does not have bubble, and glass does not burst.
Glassy layer is milled to 2.5mm and precise polished, and face shape reaches requirement.Plating highly reflecting films in vacuum coating equipment are finally made catoptron at last.This reflecting mirror surface shape steady quality, optical system good stability in the use meets the military optics system requirements.
Example 3:
The special glass composition is SiO 230wt%, PbO67.2wt%, Na 2O1.5wt%, K 2O0.5wt%, CaO0.5wt%, As 2O 30.3wt%, wherein, PbO Pb 3O 4Introduce Na 2O Na 2CO 3Introduce K 2O K 2CO 3Introduce CaO CaCO 3Introduce, all the other compositions are introduced with oxide.Introduce thing and adopt analysis pure chemistry reagent.Raw material is fully mixed, be added to temperature and be in 1350 ℃ the platinum crucible, melting time is 10 hours, and stir the assurance good homogeneous, and melt temperature is about 1200 ℃ during casting, and annealing temperature is 490 ℃, can obtain chunk glass, make the 3mm glass plate through grinding, polishing again.The employing industry standard is measured, and the expansion coefficient of this glass is 84 * 10 -7/ ℃, softening point is 520 ℃.
Titanium metal substrate is selected the TC4 material for use, carries out Precision Machining earlier, surfaceness 15 μ m.
Glass and metal are cleaned with alcohol and acetone, physical chemistry is carried out at the titanium alloy-based end to be handled, surface activation process, electric furnace is put at the titanium alloy-based end and glass, programming rate with 3 ℃/min rises to 400 ℃, be incubated 1 hour then, programming rate with 2 ℃/min rises to 540 ℃ again, be incubated 3 hours then, speed with 10 ℃/h is cooled to 400 ℃ again, is incubated after 4 hours again that the speed with 10 ℃/h is cooled to 200 ℃, the blowing out cooling, when reducing to room temperature, temperature comes out of the stove, mirror glass layer behind the sintering is connected closely with titanium alloy, and the interface does not have bubble, and glass does not burst.
Glassy layer is milled to 1.2mm and precise polished, and face shape reaches requirement.Plating highly reflecting films in vacuum coating equipment are finally made catoptron at last.This reflecting mirror surface shape steady quality, optical system good stability in the use meets the military optics system requirements.
Example 4:
The special glass composition is SiO 235wt%, PbO63.5wt%, Na 2O1wt%, As 2O 30.5wt%, wherein, PbO Pb 3O 4Introduce Na 2O Na 2CO 3Introduce, all the other compositions are introduced with oxide.Introduce thing and adopt analysis pure chemistry reagent.Raw material is fully mixed, be added to temperature and be in 1350 ℃ the platinum crucible, melting time is 10 hours, and stir the assurance good homogeneous, and melt temperature is about 1200 ℃ during casting, and annealing temperature is 490 ℃, can obtain chunk glass, make the 3mm glass plate through grinding, polishing again.The employing industry standard is measured, and the expansion coefficient of this glass is 85 * 10 -7/ ℃, softening point is 650 ℃.
Titanium metal substrate is selected the TC4 material for use, carries out Precision Machining earlier, surfaceness 14 μ m.
Glass and metal are cleaned with alcohol and acetone, physical chemistry is carried out at the titanium alloy-based end to be handled, surface activation process, electric furnace is put at the titanium alloy-based end and glass, programming rate with 3 ℃/min rises to 400 ℃, be incubated 1 hour then, programming rate with 2 ℃/min rises to 540 ℃ again, be incubated 3 hours then, speed with 10 ℃/h is cooled to 400 ℃ again, is incubated after 4 hours again that the speed with 10 ℃/h is cooled to 200 ℃, the blowing out cooling, when reducing to room temperature, temperature comes out of the stove, mirror glass layer behind the sintering is connected closely with titanium alloy, and the interface does not have bubble, and glass does not burst.
Glassy layer is milled to 1.5mm and precise polished, and face shape reaches requirement.Plating highly reflecting films in vacuum coating equipment are finally made catoptron at last.This reflecting mirror surface shape steady quality, optical system good stability in the use meets the military optics system requirements.
Because special glass expansion coefficient and titanium metal substrate matched, so glassy layer can realize being connected in processing closely with titanium alloy in the above example, and the interface does not have bubble, and glass does not burst, and provides assurance for preparing high-quality catoptron.

Claims (6)

1. a lightweight surfaces vitrifacation titanium catoptron is characterized in that this catoptron is made of titanium metal substrate, special glass layer and reflective coating, and wherein said special glass expansion coefficient is 80-90 * 10 -7/ ℃, softening point is 450-650 ℃, the special glass composition is SiO 225-40wt%, PbO52.5-70wt%, R 2O1-5wt%, RO0-2wt%, As 2O 30.2-0.5wt%, wherein R is K, Na, Mg or Ca; Described titanium metal substrate is pure titanium TA1, TA2 or TA3, or titanium alloy T C1, TC2, TC3, TC4 or TC6.
2. lightweight surfaces vitrifacation titanium catoptron according to claim 1 is characterized in that, the titanium substrate is cellular structure dull and stereotyped or for having light-weight design.
3. lightweight surfaces vitrifacation titanium catoptron according to claim 1 and 2 is characterized in that described special glass layer thickness is 0.2-2.5mm.
4. lightweight surfaces vitrifacation titanium catoptron according to claim 1 and 2 is characterized in that, rear surface roughness 0.8-15 μ m is handled in processing in the titanium metal substrate surface.
5. lightweight surfaces vitrifacation titanium catoptron according to claim 3 is characterized in that, rear surface roughness 0.8-15 μ m is handled in processing in the titanium metal substrate surface.
6. a special glass is characterized in that, its expansion coefficient is 80-90 * 10 -7/ ℃, softening point is 450-650 ℃; Its composition is SiO 225-40wt%, PbO52.5-70wt%, R 2O1-5wt%, RO0-2wt%, As 2O 30.2-0.5wt%, wherein R is K, Na, Mg or Ca.
CNB2006101143760A 2006-11-08 2006-11-08 Light surface glass titanium metal planar reflector and a special glass Active CN100420966C (en)

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101930088B (en) * 2010-08-04 2012-07-04 中国建筑材料科学研究总院 Surface-vitrified beryllium metal flat reflector and special glass
CN102052633A (en) * 2010-12-23 2011-05-11 东莞市宝利节能有限公司 Production process of nanometer light-reflecting bowl
CN102236116A (en) * 2011-07-06 2011-11-09 刘海鹰 Novel spherical mirror
CN109738978B (en) * 2018-12-26 2021-10-08 河南机电职业学院 High-reflection film layer for high-temperature-resistant and waste gas-resistant strong acid corrosion-resistant laser device and preparation method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1296819A (en) * 1970-09-08 1972-11-22
GB1581455A (en) * 1977-06-28 1980-12-17 Bfg Glassgroup Mirrors
CN2511983Y (en) * 2001-02-27 2002-09-18 河南平原光学电子仪器厂 Light reflector
CN1721886A (en) * 2004-07-14 2006-01-18 大阪特殊硝子株式会社 Reflecting mirror

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1296819A (en) * 1970-09-08 1972-11-22
GB1581455A (en) * 1977-06-28 1980-12-17 Bfg Glassgroup Mirrors
CN2511983Y (en) * 2001-02-27 2002-09-18 河南平原光学电子仪器厂 Light reflector
CN1721886A (en) * 2004-07-14 2006-01-18 大阪特殊硝子株式会社 Reflecting mirror

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