CN113341523B - Window mirror device for high-temperature processing environment - Google Patents

Window mirror device for high-temperature processing environment Download PDF

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Publication number
CN113341523B
CN113341523B CN202110632072.8A CN202110632072A CN113341523B CN 113341523 B CN113341523 B CN 113341523B CN 202110632072 A CN202110632072 A CN 202110632072A CN 113341523 B CN113341523 B CN 113341523B
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China
Prior art keywords
window mirror
glass
cover plate
low
processing environment
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Active
Application number
CN202110632072.8A
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Chinese (zh)
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CN113341523A (en
Inventor
郑幸龙
郝军军
赵东东
金朝亮
李元
赵若愚
胡立人
帖凯
杨静峰
王志斌
边慧
薛花
卢梦茹
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Xi'an Kangtuo Medical Technology Co ltd
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Xi'an Kangtuo Medical Technology Co ltd
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Priority to CN202110632072.8A priority Critical patent/CN113341523B/en
Publication of CN113341523A publication Critical patent/CN113341523A/en
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/007—Pressure-resistant sight glasses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/25—Housings, e.g. machine housings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/008—Mountings, adjusting means, or light-tight connections, for optical elements with means for compensating for changes in temperature or for controlling the temperature; thermal stabilisation
    • 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
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Abstract

The invention provides a window mirror device for high temperature processing environment, comprising: the front observation panel, the first packaging cover plate, the second packaging cover plate and the external shell are arranged on the front side of the external shell, and the first packaging cover plate and the second packaging cover plate are arranged on the upper side and the lower side of the external shell; a window mirror is arranged in the outer shell, the window mirror is a vacuum array layer formed by multiple layers of low-emissivity glass, and corrugated thermal compensators with clamping grooves are arranged on the periphery of the window mirror; the side edge of the low-radiation glass is arranged in a clamping groove of the corrugated thermal compensator, and the corrugated thermal compensator is bonded with the low-radiation glass through high-temperature glue. The corrugated thermal compensator balances the thermal stress deformation of the observation mirror glass at high temperature, and prolongs the service life of the observation mirror glass; the method is favorable for comprehensive heat preservation and insulation and visual field observation in a high-temperature processing environment, and has a great application market.

Description

Window mirror device for high-temperature processing environment
Technical Field
The invention relates to the technical field of observation windows, in particular to a window mirror device for a high-temperature processing environment.
Background
In some specialty processing environments, for example: in the additive manufacturing technology of the laser sintering of the selective area of the powder bed or in the application scene with special requirements on heat preservation and heat insulation in the processing process, on one hand, a visual field window is needed for observing the processing process, and on the other hand, the strict requirements on heat preservation and heat insulation cannot be met due to the fact that a large amount of heat is radiated and dissipated by a common glass window mirror. The process of laser sintering (SLS) of a Polyetheretherketone (PEEK) powder bed is described as an example. Since the PEEK powder material is a material which is particularly sensitive to temperature, and laser forming of the PEEK powder is performed in an environment which is filled with inert protective gas and has a uniform temperature field, when local temperature difference of the temperature field occurs, particularly when the powder spreading thickness is small, buckling deformation of the sintered part easily occurs, at the moment, the powder spreading roller can drive the buckling deformation part to move, so that part forming of the part which is being sintered is damaged, and the whole printed finished product is scrapped. Therefore, ensuring the uniformity of the temperature field of the printing powder bed plays an important role in the quality of the printed finished product.
In actual powder forming temperature field environment, the fixed both sides of shop's powder car are thermal-insulated through the steel band, and the headspace is provided with heating fluorescent tube and laser scanning mirror, and the powder side that falls of shop's powder car needs to push the powder of whereabouts on the one hand and forms the region sintering, and on the other hand needs to push the powder of laying more in the collection workbin, and this case mouth passes through high temperature resistant hose and collection workbin connection, and outside observation side is exactly the part that is provided with the sight glass. In practical application, the fixed two sides, the top space and the powder falling side of the powder paving vehicle are subjected to heat preservation and insulation treatment, the improvement difficulty is high, and the external observation side has a large improvement space.
The PEEK powder laser forming temperature field comprises; the feed bin part: the feeding bin drives the main shaft to rotate through the motor, powder in the bin falls in front of the powder spreading vehicle, and the number of feeding grids is determined by the number of times of rotation of the main shaft. The blanking bin part is connected with a vacuum feeding machine, and the rear sealing plate is filled with a sealing heat-insulating material, so that no gas or heat can be dissipated; the optical part of the laser mirror is as follows: the laser forming device mainly comprises a laser optical control and emission part, wherein the laser optical control and emission part controls technological parameters such as power, scanning speed and scanning distance of laser when laser is formed. The laser mirror is externally connected with a nitrogen gas circuit system, so that the laser mirror can be blown clean, and the flying powder is prevented from being accumulated on the laser lens. The part is far higher than the powder bed, laser can be irradiated to a laser forming area through a reflector and the like, the heat dissipation of the part can be ensured, the improvement of general heat dissipation is complex, and the operation is difficult; guide rail protection steel belt: two ends of the powder paving vehicle penetrate through the steel belt through the fixed notches to be connected to the guide rail, and the steel belt can isolate heat and gas from being emitted, so that the uniformity of a temperature field is ensured; a material collection box interface: the powder spreading vehicle drives the powder spreading stick to rotate, the powder falling from the discharging bin is pushed into a laser forming area, redundant powder can fall into the material receiving cylinder firstly, when the powder is spread in a return stroke, the powder spreading vehicle directly pushes the redundant powder into a material collecting box interface, the interface is a gap of 2 mm-5 mm, and the interface is connected with a material collecting box through flexible connection to form a powder recovery device. The part can also ensure the temperature and the gas to float, and ensure the uniformity of a temperature field; window mirror: in order to be able to observe the powder laying stability and the sintering layer pattern in the processing process in real time, observable transparent glass must be arranged. This area is generally closer to the area of the heating lamp tube, where heat is dissipated by air and radiation, providing a simple and feasible space for improvement.
According to the theory of heat transfer, there are two general ways of dissipating heat, one is to dissipate heat by heating air through gas conduction, the other is to dissipate heat by radiation, and temperature is also an energy, and according to the theory of energy optics, the heat is dissipated by radiation waves of different wavelengths in part. The traditional observation mirror is designed to be simple to manufacture and save cost, and generally only adopts common high-temperature-resistant glass for heat insulation, so that the requirement of high heat insulation cannot be met on one hand, and on the other hand, under a high-temperature environment, thermal stress exists around the glass, so that the glass observation mirror is easy to be damaged in an accelerated manner after being used for a long time.
Disclosure of Invention
In order to overcome the problems in the prior art, the invention provides a window mirror device for a high-temperature processing environment, which is mainly designed and improved in a new structure aiming at the problem of poor heat preservation and insulation effects in practical application, so that the technical problem in the prior art is solved.
The technical scheme of the invention is as follows:
a window mirror apparatus for use in a high temperature processing environment, comprising:
the front observation panel, the first packaging cover plate, the second packaging cover plate and the external shell are arranged on the front side of the external shell, and the first packaging cover plate and the second packaging cover plate are arranged on the upper side and the lower side of the external shell;
a window mirror is arranged in the outer shell, the window mirror is a vacuum array layer formed by multiple layers of low-emissivity glass, and corrugated thermal compensators with clamping grooves are arranged on the periphery of the window mirror;
the side edge of the low-radiation glass is arranged in a clamping groove of the corrugated thermal compensator, and the corrugated thermal compensator is bonded with the low-radiation glass through high-temperature glue.
The further technical scheme of the invention is that a clamping groove is arranged in the outer shell, and the outer side of the corrugated thermal compensator is embedded into the clamping groove and fixed with the outer shell.
Further, a fiber heat insulation pad is arranged in the clamping groove.
According to a further technical scheme, the corrugated thermal compensator is provided with vacuumizing holes, and low-emissivity glass in the window mirror is provided with vacuumizing holes.
According to a further technical scheme of the invention, an elastic support is arranged between the low-emissivity glass and comprises a support column and an elastic pad, one side of the elastic pad is attached to the low-emissivity glass, and the outer side of the elastic pad is fixedly connected with the support column.
Furthermore, a groove is formed in the joint of the low-emissivity glass and the elastic pad.
Furthermore, the joint of the low-emissivity glass and the elastic pad is provided with anti-skid grains.
As a further technical scheme of the invention, the surface of the low-emissivity glass is bonded with a radiation-proof protective film.
As a further technical solution of the present invention, seal rings are disposed between the observation panel, the first encapsulation cover plate, the second encapsulation cover plate, and the external case, and the first encapsulation cover plate and the second encapsulation cover plate are fixed to the external case by bolts.
Further, the first encapsulation cover plate, the second encapsulation cover plate, the front observation panel and the thermal shell are made of protective steel plate materials.
The invention has the beneficial effects that:
1. the corrugated thermal compensator is mainly used for balancing the thermal stress deformation of the observation mirror glass at high temperature, playing a role in sealing protection and prolonging the service life of the observation mirror glass;
2. as supporting material through high temperature resistant elastic support between the polylith glass of window mirror, elastic support mainly comprises support column and cushion, can customize according to the shape and the size of sight glass, can set up recess or anti-skidding line in the part of glass and cushion contact for guarantee connection stability.
3. The surface of the low-radiation glass of the window mirror is bonded with the radiation-proof protective film, and the film is attached to the surface of the glass, so that energy waves can be effectively reflected, and the loss of heat can be prevented. The radiation protection film is used for further enhancing the high-temperature radiation protection effect;
4. the invention is beneficial to comprehensive heat preservation and insulation and visual field observation in a high-temperature processing environment. The method can be applied to the technical scenes of a laser sintering process of additive manufacturing, a control process of heat preservation and insulation of a processing environment and the like, and has a great application market.
Drawings
FIG. 1 is an exploded view of a window mirror assembly for use in a high temperature processing environment in accordance with the present invention;
FIG. 2 is a front view of a window mirror for use in a high temperature processing environment in accordance with the present invention;
FIG. 3 is a front view of a window mirror with an elastic bracket according to the present invention;
FIG. 4 is a structural view of a corrugated thermal compensator according to the present invention;
FIG. 5 is a structural view of a low emissivity glass in accordance with the present invention;
FIG. 6 is a perspective view of a window mirror according to the present invention;
shown in the figure:
1-front viewing panel, 2-first package cover plate, 3-second package cover plate, 4-external shell, 5-window mirror, 6-corrugated thermal compensator, 7-fiber heat insulation pad, 8-elastic support, 9-radiation protection film, 10-vacuum layer;
51-low emissivity glass, 61-card slot;
81-support column, 82-elastic pad.
Detailed Description
The conception, the specific structure and the technical effects produced by the present invention will be clearly and completely described in conjunction with the embodiments and the attached drawings, so as to fully understand the objects, the features and the effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention.
Referring to fig. 1 to 6, in which fig. 1 is an exploded view of a window mirror device for high temperature processing environment according to the present invention; FIG. 2 is a front view of a window mirror for use in a high temperature processing environment in accordance with the present invention; FIG. 3 is a front view of a window mirror with an elastic mount according to the present invention; FIG. 4 is a structural view of a corrugated thermal compensator according to the present invention; FIG. 5 is a structural view of a low emissivity glass in accordance with the present invention; FIG. 6 is a perspective view of a window mirror according to the present invention;
as shown in fig. 1 to 6, a window mirror apparatus for a high temperature processing environment includes:
the front observation panel comprises a front observation panel 1, a first packaging cover plate 2, a second packaging cover plate 3 and an outer shell 4, wherein the outer shell 4 is of a through hole structure, the front observation panel 1 is arranged on the front side of the outer shell 4, and the first packaging cover plate 2 and the second packaging cover plate 3 are arranged on the upper side and the lower side of the outer shell 4;
a window mirror 5 is arranged in the outer shell 1, the window mirror 5 is a vacuum array layer composed of a plurality of layers of low-emissivity glass 51, and corrugated thermal compensators 6 with clamping grooves 61 are arranged around the window mirror 5;
the side edge of the low-emissivity glass 51 is arranged in a clamping groove 61 of the corrugated thermal compensator 6, and the corrugated thermal compensator 6 is bonded with the low-emissivity glass 51 through high-temperature glue.
The window mirror device provided by the invention is mainly formed by Low-emissivity glass, and Low-E glass can be adopted; the thermal compensator is mainly used for compensating the heated elongation caused by heating the glass so as to weaken or eliminate the stress generated by thermal expansion and cold contraction; a corrugated pipe compensator and the like can be adopted; the supporting part is mainly used for supporting among a plurality of pieces of glass and is used for forming a vacuum layer; the radiation protection film is mainly attached to the outer surface of the glass to prevent radiation and heat dissipation; the high-temperature adhesive is mainly used for the adhesion of a radiation-proof film and glass, the sealing of a thermal compensator and the glass and the sealing of a vacuum heat-insulating layer after vacuumizing; the structure composed of the glass observation mirror, the thermal compensator and the like is sealed by the outer shell through a fiber heat insulation pad, a flange and a bolt.
The corrugated thermal compensator is mainly used for balancing the thermal stress deformation of the observation mirror glass at high temperature, simultaneously playing a role in sealing protection and prolonging the service life of the observation mirror glass.
The window mirror is characterized in that a plurality of pieces of glass are connected through the corrugated thermal compensator, and the corrugated thermal compensator utilizes effective telescopic deformation of a working main body corrugated pipe to absorb size change of the glass caused by expansion with heat and contraction with cold at high temperature. The bellows can be selected to be made into a plurality of connecting respectively, also can be selected to be made into holistic buckle structure, makes things convenient for the fixed between the polylith glass. The joint area between the corrugated pipe and each piece of glass is bonded through high-temperature glue, so that the fixed sealing performance is ensured.
In the embodiment of the invention, the inside of the outer shell 1 is provided with the clamping groove, and the outer side of the corrugated thermal compensator 6 is embedded into the clamping groove and fixed with the outer shell.
Wherein, set up fibrous heat insulating mattress 7 in the draw-in groove 61, set up the evacuation hole on the ripple type thermal compensator 6, set up the evacuation hole on the low radiation glass 51 inside the window mirror 5.
In the embodiment of the invention, the elastic support 8 is further arranged between the low-emissivity glass 51, the elastic support 8 comprises a supporting column 81 and an elastic pad 82, one side of the elastic pad 82 is attached to the low-emissivity glass 51, and the outer side of the elastic pad 82 is fixedly connected with the supporting column 81. The joint of the low-emissivity glass 51 and the elastic pad 82 is provided with a groove or an anti-skid line.
As supporting material through high temperature resistant elastic support between the polylith glass of window mirror, elastic support mainly comprises support column and cushion, can customize according to the shape and the size of sight glass, can set up recess or anti-skidding line in the part of glass and cushion contact for guarantee connection stability. The support material can be selected as follows: graphite packing and other high temperature sealing materials with similar functions.
The surface of the low radiation glass 51 of the window mirror is bonded with the radiation protection film 9, and the film is attached to the surface of the glass, so that energy waves can be effectively reflected, and the loss of heat can be prevented. The radiation protection film is used for further enhancing the high-temperature radiation protection effect, and can be adhered on the inner side close to the high-temperature processing environment or on each piece of glass.
In the embodiment of the invention, sealing rings are arranged between the front observation panel 1, the first packaging cover plate 2, the second packaging cover plate 3 and the outer shell 4, and the first packaging cover plate and the second packaging cover plate are fixed with the outer shell through bolts. The front observation panel 1, the first packaging cover plate 2, the second packaging cover plate 3 and the outer shell 4 are made of protective steel plate materials.
The invention is beneficial to comprehensive heat preservation and insulation and visual field observation in a high-temperature processing environment. The method can be applied to the technical scenes of a laser sintering process of additive manufacturing, a control process of heat preservation and insulation of a processing environment and the like, and has a great application market.
The window mirror adopts Low-radiation high-temperature-resistant glass, low-E glass can be selected, and two, three, four or more pieces of glass can be simultaneously adopted to form a vacuum array layer; the window mirrors may alternatively be arranged in a circular, square, pentagonal, hexagonal, octagonal or other polygonal configuration.
The vacuum layer 10 is arranged in the middle of the window mirror, so that heat can be effectively isolated from being conducted through an air medium; the vacuum heat-insulating layer adopts a vacuumizing process and is sealed by high-temperature-resistant glue.
The outer shell is a combined structure formed by the embedded glass and the corrugated thermal compensator, can be manufactured by adopting a protective steel plate as a main body, and is integrally reinforced and sealed by accessories such as a sealing ring, a flange, a screw and the like. When the observation mirror is needed, the external box body after the integral combination is only needed to be assembled.
The glass of the window mirror can be selected to be round, square, pentagonal, hexagonal, octagonal and other polygonal shapes according to practical application scenes, and two, three, four or more pieces of glass can be selectively arranged. The elastic support between the glasses is made of high temperature resistant material. For the stability of the support, grooves can be designed on the glass lens or special anti-slip lines can be designed on the support part to increase the friction force and facilitate the combination of the gasket and the support material.
And (3) embedding and assembling the observation mirror glass and the corrugated thermal compensator in different combination forms, and adhering and sealing the adhered part by using high-temperature-resistant glue. After the packaging is carried out by using the packaging cover plate, a vacuum layer can be formed between the glasses. And a small vacuumizing hole can be arranged between the corrugated thermal compensator or every two pieces of glass, and high-temperature glue sealing is carried out after the vacuumizing process is finished.
After the corrugated thermal compensator and the observation mirror glass are assembled, the corrugated thermal compensator and the observation mirror glass are sealed through the first packaging cover plate and the second packaging cover plate on the outer sides. The shapes of the first packaging cover plate and the second packaging cover plate are mainly determined according to the shapes of the window mirror glass and the corrugated thermal compensator, and a circle, a square or other polygons can be selected. The first packaging cover plate and the second packaging cover plate can be sealed and fixed in the forms of self-tapping and self-drilling screws, bolts and nuts, different types of buckles and the like. The vacuum-pumping reserved hole can be selectively designed on the packaging cover plate. The vacuum holes can be designed to be round, square or other polygonal shapes, and one, two or more vacuum holes are also selected. And after vacuum pumping, sealing the holes by using high-temperature-resistant glue. The cover plate is also designed to be in the form of a corrugated pipe or the like with the function of a thermal compensator.
After the internal encapsulation is finished, in order to strengthen the protection effect or the appearance is firmer, more pleasing to the eye, but the outside box of selective external assembly, outside box is mainly in order to further strengthen the protection effect, simultaneously in order to adapt to the installation requirement of different processing operation environments.
After being packaged inside, the periphery of the internal structure body is added with high-temperature-resistant soft protective materials, and finally, the external box body and the observation window are assembled. In order to adapt to the assembly requirements of different processing environments, the main body part of the external box body can be designed into a box body structure with different steps and can also be designed into a cylinder structure, the observation window of the external box body is mainly used for facilitating the observation after the installation and the fixation, the observation window can be made into a through hole, and the observation mirror inside can be directly observed through the sight. The main body part and the observation window of the external box body can be fixed by selecting self-tapping and self-drilling screws, screw nuts, flanges and the like.
The present invention has been described in detail above, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention. Many other changes and modifications can be made without departing from the spirit and scope of the invention. It is to be understood that the invention is not to be limited to the specific embodiments, but only by the scope of the appended claims.

Claims (10)

1. A window mirror apparatus for use in a high temperature processing environment, comprising:
the front observation panel, the first packaging cover plate, the second packaging cover plate and the external shell are arranged on the front side of the external shell, and the first packaging cover plate and the second packaging cover plate are arranged on the upper side and the lower side of the external shell;
a window mirror is arranged in the outer shell, the window mirror is a vacuum array layer composed of multiple layers of low-radiation glass, and corrugated thermal compensators with clamping grooves are arranged around the window mirror;
the side edge of the low-radiation glass is arranged in a clamping groove of the corrugated thermal compensator, and the corrugated thermal compensator is bonded with the low-radiation glass through high-temperature glue.
2. The window mirror device for high temperature processing environment as claimed in claim 1, wherein a slot is provided inside the outer housing, and the corrugated thermal compensator is inserted into the slot and fixed with the outer housing.
3. The window mirror apparatus for use in a high temperature processing environment of claim 2 wherein a fibrous thermal insulation pad is disposed within said slot.
4. The window mirror apparatus of claim 1, wherein the corrugated thermal compensator is provided with vacuum holes, and the low emissivity glass inside the window mirror is provided with vacuum holes.
5. The window mirror device for high temperature processing environment according to claim 1, wherein an elastic support is further disposed between the low emissivity glass, the elastic support comprises a support pillar and an elastic pad, one side of the elastic pad is attached to the low emissivity glass, and the outer side of the elastic pad is fixedly connected to the support pillar.
6. The window mirror apparatus of claim 5, wherein a groove is formed at the joint of the low emissivity glass and the resilient pad.
7. The window mirror apparatus of claim 5, wherein the low emissivity glass is provided with non-slip threads at the interface with the resilient pad.
8. The window mirror apparatus for use in a high temperature processing environment of claim 1 wherein a radiation protective film is bonded to a surface of said low emissivity glass.
9. The window mirror apparatus of claim 1, wherein a seal ring is disposed between the viewing panel, the first and second cover plates and the outer housing, and the first and second cover plates are secured to the outer housing by bolts.
10. The window mirror apparatus of claim 1 wherein said first encapsulating cover, second encapsulating cover, front viewing panel and thermal housing are fabricated from a protective steel sheet material.
CN202110632072.8A 2021-06-07 2021-06-07 Window mirror device for high-temperature processing environment Active CN113341523B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110632072.8A CN113341523B (en) 2021-06-07 2021-06-07 Window mirror device for high-temperature processing environment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110632072.8A CN113341523B (en) 2021-06-07 2021-06-07 Window mirror device for high-temperature processing environment

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CN113341523B true CN113341523B (en) 2022-12-09

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Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4438261C1 (en) * 1994-10-26 1995-09-21 Sekurit Saint Gobain Deutsch Through-furnace for heating glasspanes
US8590271B2 (en) * 2006-04-13 2013-11-26 Sabic Innovative Plastics Ip B.V. Multi-wall structural components having enhanced radiatransmission capability
CN100575843C (en) * 2008-03-12 2009-12-30 江苏双良锅炉有限公司 Polycrystalline silicon reducing furnace water-cooling double glass viewing mirror
CN106772887A (en) * 2016-12-30 2017-05-31 江苏通鼎光棒有限公司 A kind of technique observation window for VAD deposition chambers
CN207072913U (en) * 2017-07-11 2018-03-06 上饶市广丰区利民玻璃钢化有限公司 A kind of strong sealing Low emissivity doubling compound glass

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