CN111302660A - Glass plate frame support complementary buckling metal brazing stainless steel frame hollow glass plate - Google Patents
Glass plate frame support complementary buckling metal brazing stainless steel frame hollow glass plate Download PDFInfo
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- CN111302660A CN111302660A CN201811508401.2A CN201811508401A CN111302660A CN 111302660 A CN111302660 A CN 111302660A CN 201811508401 A CN201811508401 A CN 201811508401A CN 111302660 A CN111302660 A CN 111302660A
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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
- C03C27/00—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing
- C03C27/06—Joining glass to glass by processes other than fusing
- C03C27/08—Joining glass to glass by processes other than fusing with the aid of intervening metal
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
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Abstract
The glass plate frame supports the complementary buckled metal brazing stainless steel frame hollow glass plate, argon or carbon dioxide gas is introduced into a vacuum furnace by utilizing an outer protective frame and a metal brazing process, the hollow interlayer is pumped, the hollow glass edge is quickly sealed and brazed through the difference of the resistance of the brazing metal and the resistance of the stainless steel frame, and high-quality hollow glass is produced. The invention overcomes the problem that the corners of the glass are not protected and are fragile, can improve the quality of glass and metal brazing, has the characteristics of no loss of tempering, high strength, low manufacturing cost, good air tightness, good heat preservation performance, low energy consumption and good perspective effect, has a protection effect on the hollow glass, has high strength due to the stainless steel frame, and avoids the damage caused by cracking the corners in the transportation process. Represents the development direction of the hollow glass.
Description
Technical Field
The invention relates to a functional glass plate manufactured by sealing glass and metal by using a metal brazing technology, belonging to the field of glass building materials.
Background
At present, the mainstream of functional glass is hollow glass, but the periphery of the hollow glass is not provided with a protective frame, so that the hollow glass is easy to break due to the collision of glass corners in the processes of storage, transportation and installation. Meanwhile, because the organic gluing process is adopted between the glass and the glass, the bonding effect, the ageing resistance and the service life are not ideal.
The sealing technology of glass and metal has been widely applied to the manufacture of various high-quality electric light sources, electron tubes and other electric vacuum devices, and is also applied to the solar thermal power generation technology in recent years, and becomes a key technology of a solar heat collecting tube. The glass and metal sealing joint in the solar heat collecting pipe can bear the capability of generating larger tensile stress and alternating load due to large day and night temperature difference change.
After all, sealing between glass and metal is a connection between different materials, and the connection has many problems due to the great difference of the physical properties of the materials, and the connection methods are also very limited.
The conventional sealing method mainly comprises high-temperature fusion sealing and field diffusion connection, the sealing by metal brazing is very little, and the quality of a welded joint obtained by adopting the process method of fusion sealing and field diffusion connection is not high, so that the quality requirement of glass and metal brazing sealing is difficult to meet.
Disclosure of Invention
The invention is produced from practice under the technical background, the invention utilizes the metal brazing process, overcomes the problem that the corners of the glass are not protected and are fragile, can improve the quality of glass and metal brazing sealing, has the characteristics of simple operation, low cost, high strength, low manufacturing cost, good heat insulation performance, low energy consumption and good perspective effect, and can obtain good economic benefit, environmental benefit and social benefit.
The technical scheme of the invention is realized as follows: the hollow glass plate with the glass plate frame and the metal brazing stainless steel frame which are supported and complementarily buckled comprises a glass plate, an aluminum or aluminum alloy brazing section and a stainless steel frame. Two glass plates are mutually corresponding in outline shape and size to form an interval interlayer cavity, and annular closed glass plate parallel bending support frames are arranged at the edge of the glass plates.
Or the two glass plates correspond to each other in the outline shape and size to form the interlayer cavity, and the edge of the glass plate forming the interlayer cavity is provided with an annular closed glass plate adjacent edge bending support frame.
Or the two glass plates correspond to each other in the outline shape and size to form the edge of the glass plate of the interval interlayer cavity, and four edge bending support frames of the annular closed glass plate are arranged on the edge of the glass plate.
The annular closed glass plate is bent in parallel to support the frame, or is tempered with the glass synchronously.
The two glass plates are mutually buckled, covered and closed by a T-shaped aluminum or aluminum alloy frame arranged on the annular closed glass plate parallel bending support frame for sealing.
And then, tightly wrapping a closed-loop aluminum or aluminum alloy section with an inverted U-shaped section on the outer side of the periphery of the hollow sandwich glass plate body. Utilize the self elasticity of cross-section for "U" shape closed loop ripple stainless steel frame, stretch the suit with the peripheral outside of cavity sandwich glass plate body to utilize self resilience of closed loop ripple stainless steel frame, make the cross-section be "U" shape closed loop ripple stainless steel frame, closely laminate together with the aluminium or the aluminium alloy ex-trusions in the peripheral outside of cavity sandwich glass plate body. And an aluminum or aluminum alloy closed loop and a stainless steel closed loop protection frame are arranged on the periphery of the manufactured insulating glass plate body, and the hollow sandwich glass plate blank is connected with the closed loop aluminum or aluminum alloy frame and the stainless steel closed loop protection frame.
Or the aluminum or aluminum alloy section bar on the outer side of the periphery of the hollow sandwich glass plate body is wrapped with a closed loop stainless steel frame with L-shaped and reverse L-shaped sections, and the closed loop stainless steel frame is buckled and sleeved with the closed loop stainless steel frame to form a hollow sandwich glass plate edge structure protection frame. And an aluminum or aluminum alloy closed loop and a stainless steel closed loop protection frame are arranged on the periphery of the manufactured insulating glass plate body, and the hollow sandwich glass plate blank is connected with the closed loop aluminum or aluminum alloy frame and the stainless steel closed loop protection frame.
And then, at least one glass plate blank is sent into a brazing furnace, heating and vacuumizing are performed, low-heat-conducting gas including argon, carbon dioxide and the like is filled, and brazing of a stainless steel frame, aluminum or aluminum alloy and glass is realized through electric heating brazing. Spraying atomized water to the brazing furnace for cooling, and opening the furnace to obtain the U-shaped glass stainless steel protective frame metal brazing hollow glass plate with the mutual buckling.
The aluminum or aluminum alloy brazing material includes Al and Al-containing brazing materials including Al-Si system, Al-Cu-Si system, and Zn-AI system.
A method for manufacturing the product of claim 1, a "U" shaped interlocking glass stainless steel protective frame metal brazed hollow glass plate, comprising a glass plate, an aluminum or aluminum alloy brazing profile, a stainless steel frame, and a brazing furnace. And (2) separating a hollow interlayer between the two glass plates through a supporting frame, arranging aluminum or aluminum alloy brazing profiles on the sealing covers and the surfaces of the two glass plates and the edges of the glass plates, and wrapping stainless steel frames on the frames of the aluminum alloy brazing profiles to prepare hollow interlayer glass plate blanks.
And then horizontally placing at least one hollow sandwich glass plate blank into a brazing furnace provided with a supporting base, a fixed supporting clamp or a tray, connecting a compaction electric clamp on a stainless steel frame wrapped outside the joint of the closed-loop aluminum or aluminum alloy frame, and connecting another compaction electric clamp at another point at the equal distance of the stainless steel frame to form two paths of conductive loops with equal resistance wrapping the glass frame. And closing a brazing furnace door, heating and vacuumizing the glass plate blank in the brazing furnace, and filling low-heat-conduction gas including argon, carbon dioxide and the like into the brazing furnace after the heating temperature, the vacuum degree and the set vacuumizing time are reached, so that the glass hollow interlayer is filled with the low-heat-conduction gas with the same pressure as that of the brazing furnace. And then, a low-voltage and high-current heating power supply is connected to the two pressing electric clamps on the glass plate blank.
Because aluminium or aluminum alloy frame resistance among stainless steel frame, glass, aluminium or the aluminum alloy frame three is minimum, consequently, the electric current in aluminium or the aluminum alloy frame is the biggest, and aluminium or aluminum alloy frame is heated rapidly, and self rapid heating up is even to be melted. Under the capillary action of contact gaps between stainless steel and glass, between glass and glass, and between stainless steel and stainless steel, and under the action of self-cohesion after the brazing material is melted, the brazing material and the glass brazing surface, and the stainless steel brazing surface are fully immersed and wetted, so that the brazing of aluminum or aluminum alloy to the glass surface and the stainless steel surface is realized.
In the process, aluminum is rapidly heated and changed into liquid aluminum, and the glass brazed with stainless steel aluminum is not completely softened due to poor heat conduction performance and short heating time. Whereas at 720 ℃, the main components of the glass, Si02 and Al, react chemically: 4A1+3Si02=2a1203+3Si, i.e. the interface between the glass and the aluminum is now strongly bonded by chemical reaction. Meanwhile, at 720 ℃, the stainless steel is not softened, and the surface of the stainless steel oxide layer and the aluminum are subjected to chemical reaction, namely, the interface of the stainless steel and the aluminum is firmly combined due to the chemical reaction. However, the temperature of 720 ℃ is the softening temperature of the common glass, so that if the brazing temperature is reduced, the glass is ensured not to be obviously softened, and the process requirement can be met. The aluminum alloy brazing material is selected and used for reducing the brazing temperature between the glass and the stainless steel frame, improving the brazing quality between the glass and the stainless steel and reducing the difficulty of the brazing process.
Although aluminum or aluminum alloy brazing materials have good kovar characteristics, considering that the linear expansion coefficients of glass and aluminum or aluminum alloy brazing materials are greatly different, certain stress is generated on a brazing surface due to inconsistent shrinkage during cooling. Therefore, the stainless steel frame is deformed as much as possible, the stress generated by the aluminum or aluminum alloy brazing material due to expansion caused by heat and contraction caused by cold is absorbed, and the brazing quality between the stainless steel frame and the glass is ensured.
Meanwhile, the groove of the closed-loop stainless steel frame with the U-shaped section is designed to be deeper, so that the closed-loop aluminum or aluminum alloy frame corresponding to the groove is also longer, and the formed brazing connection sealing layer is thicker, so that the brazing strength of aluminum or aluminum alloy, glass and stainless steel is high, and the airtight sealing performance is good.
After the aluminum or aluminum alloy frame is heated and uniformly melted, the resistance is suddenly increased, and the current is instantly decreased. Therefore, the phenomenon can be utilized to automatically and intelligently control the electrifying and heating time, accurately control the brazing temperature and well realize the brazing of the aluminum or the aluminum alloy and the plate glass and the stainless steel frame.
When the brazing heating power supply is cut off timely, the aluminum or aluminum alloy brazing layer is cooled, a temperature field with the temperature being consistent with that of the glass and the stainless steel frame is gradually formed, and good brazing connection is achieved.
And then spraying atomized water into the brazing furnace, wherein the water absorbs the heat of argon or carbon dioxide gas to evaporate rapidly and continuously absorbs the heat of the device and glass in the brazing furnace, the water vapor absorbs heat, rises in temperature and expands to generate pressure, the stainless steel frame rapidly compacts the aluminum or aluminum alloy brazing layer in a softened state under the action of air pressure, the aluminum or aluminum alloy brazing layer releases heat and solidifies, and rapid and large-scale temperature reduction of the brazing furnace is realized.
Through the process, the cooling speed in the brazing furnace is controlled, the quality of brazing glass and stainless steel through aluminum or aluminum alloy is improved, the characteristics of the glass in the stainless steel frame of the tempered glass are changed, the flat glass within the inner edge of the closed-loop stainless steel frame is still tempered glass, or the glass wrapped in the groove of the closed-loop stainless steel frame is moderately tempered, or the tempering characteristics of the glass wrapped in the groove of the closed-loop stainless steel frame are lost, and the hollow sandwich glass plate filled with low-heat-conducting gas including argon, carbon dioxide and the like is obtained.
And opening the brazing furnace door when the temperature of the brazing furnace is reduced to 50-55 ℃, and finally obtaining the hollow heat-insulating glass plate brazed by the glass plate and the stainless steel frame and the aluminum or aluminum alloy in vacuum electric heating.
The hollow glass plate with the glass plate frame and the complementary buckled metal brazed stainless steel frame comprises a glass plate, aluminum paste brazing flux and a stainless steel frame. Two glass plates are mutually corresponding in outline shape and size to form an interval interlayer cavity, and annular closed glass plate parallel bending support frames are arranged at the edge of the glass plates.
Or the two glass plates correspond to each other in the outline shape and size to form the interlayer cavity, and the edge of the glass plate forming the interlayer cavity is provided with an annular closed glass plate adjacent edge bending support frame.
Or the two glass plates correspond to each other in the outline shape and size to form the edge of the glass plate of the interval interlayer cavity, and four edge bending support frames of the annular closed glass plate are arranged on the edge of the glass plate.
The annular closed glass plate is bent in parallel to support the frame, or is tempered with the glass synchronously.
The aluminum paste brazing flux is arranged on the annular sealed glass plate bending supporting frame which corresponds to each other in size, the annular sealed glass plate bending supporting frame is buckled, covered and closed, and sealed.
And then, tightly wrapping a closed-loop aluminum paste section with an inverted U-shaped section on the outer side of the periphery of the hollow sandwich glass plate body. Utilize the self elasticity of the closed loop ripple stainless steel frame that the cross-section is "U" shape, stretch the suit with the peripheral outside of cavity sandwich glass plate body to utilize the self resilience of closed loop ripple stainless steel frame, make the cross-section be "U" shape closed loop ripple stainless steel frame, closely laminate together with the aluminium thick liquid section bar in the peripheral outside of cavity sandwich glass plate body. Or the aluminum paste section bar on the outer side of the periphery of the hollow sandwich glass plate body is wrapped with a closed loop stainless steel frame with L-shaped and reverse L-shaped sections, and the closed loop stainless steel frame is buckled and sleeved with the closed loop stainless steel frame to form a hollow sandwich glass plate edge structure protection frame. And an aluminum paste closed loop and a stainless steel closed loop protection frame are arranged on the periphery of the manufactured insulating glass plate body, and the hollow sandwich glass plate blank is connected with the closed loop aluminum paste frame and the stainless steel closed loop protection frame. And drying the hollow sandwich glass plate blank.
And then, sending at least one glass plate blank into a brazing furnace, heating and vacuumizing, filling low-heat-conducting gas including argon, carbon dioxide and the like, and realizing brazing of the stainless steel frame, the aluminum paste and the glass through electric heating brazing. And (3) spraying atomized water to the brazing furnace for cooling, and opening the furnace to obtain the hollow glass plate with the glass plate edge frame for supporting and complementarily buckling the metal brazed stainless steel edge frame.
The brazing aluminum paste comprises low-temperature glass aluminum paste, medium-temperature glass aluminum paste and high-temperature glass aluminum paste.
A method of making the product glass sheet frame-supported complementary snap-fit metal-brazed stainless steel frame hollow glass sheet of claim 1 comprising glass sheets, aluminum paste brazing profiles, stainless steel frames, and a brazing furnace. And (2) separating a hollow interlayer between the two glass plates through a supporting frame, arranging aluminum paste brazing profiles on the sealing covers and the surfaces of the two glass plates and the edges of the glass plates, and wrapping stainless steel frames on the frames of the aluminum alloy brazing profiles to prepare hollow interlayer glass plate blanks.
And then horizontally placing at least one hollow sandwich glass plate blank into a brazing furnace provided with a supporting base, a fixed supporting clamp or a tray, connecting a compaction electric clamp on a stainless steel frame wrapped at the outer side of the joint of the closed-loop aluminum paste frame, and connecting another compaction electric clamp at another point at the equal distance of the stainless steel frame to form two paths of conductive loops with equal resistance wrapping the glass frame. And closing a brazing furnace door, heating and vacuumizing the glass plate blank in the brazing furnace, and filling low-heat-conduction gas including argon, carbon dioxide and the like into the brazing furnace after the heating temperature, the vacuum degree and the set vacuumizing time are reached, so that the glass hollow interlayer is filled with the low-heat-conduction gas with the same pressure as that of the brazing furnace. And then, a low-voltage and high-current heating power supply is connected to the two pressing electric clamps on the glass plate blank.
Because the aluminium thick liquid frame resistance among stainless steel frame, glass, the aluminium thick liquid frame three is minimum, consequently, the electric current in the aluminium thick liquid frame is the biggest, and the aluminium thick liquid frame is heated rapidly, self rapid heating up homogeneous melting. Under the capillary action of contact gaps between stainless steel and glass, between glass and glass, and between stainless steel and stainless steel, and under the action of self-cohesion after the brazing material is melted, the brazing material and the glass brazing surface, and the stainless steel brazing surface are fully immersed and wetted, so that the brazing of the aluminum paste to the glass surface and the stainless steel surface is realized.
In the process, aluminum is rapidly heated and changed into liquid aluminum, and the glass brazed with stainless steel aluminum is not completely softened due to poor heat conduction performance and short heating time. Whereas at 720 ℃, the main components of the glass, Si02 and Al, react chemically: 4A1+3Si02=2a1203+3Si, i.e. the interface between the glass and the aluminum is now strongly bonded by chemical reaction. Meanwhile, at 720 ℃, the stainless steel is not softened, and the surface of the stainless steel oxide layer and the aluminum are subjected to chemical reaction, namely, the interface of the stainless steel and the aluminum is firmly combined due to the chemical reaction. However, the temperature of 720 ℃ is the softening temperature of the common glass, so that if the brazing temperature is reduced, the glass is ensured not to be obviously softened, and the process requirement can be met. The aluminum alloy brazing material is selected and used for reducing the brazing temperature between the glass and the stainless steel frame, improving the brazing quality between the glass and the stainless steel and reducing the difficulty of the brazing process.
Although the aluminum paste brazing material has good kovar characteristics, in consideration of the large difference between the linear expansion coefficients of the glass and the aluminum paste brazing material, certain stress is generated on a brazing surface due to inconsistent shrinkage in the cooling process. Therefore, the stainless steel frame is deformed as much as possible, the stress generated by the aluminum paste brazing material due to expansion with heat and contraction with cold is absorbed, and the brazing quality between the stainless steel frame and the glass is ensured.
Meanwhile, the groove of the closed-loop stainless steel frame with the U-shaped section is designed to be deeper, so that the closed-loop aluminum paste frame corresponding to the groove is also longer, and the formed brazing connection sealing layer is thicker, so that the brazing strength of the aluminum paste, glass and stainless steel is high, and the airtight sealing performance is good.
After the aluminum paste frame is heated and uniformly melted, the resistance is suddenly increased, and the current is instantly decreased. Therefore, the phenomenon can be utilized to automatically and intelligently control the electrifying and heating time, accurately control the brazing temperature and well realize the brazing of the aluminum paste, the plate glass and the stainless steel frame.
When the brazing heating power supply is cut off timely, the aluminum paste brazing layer is cooled, a temperature field with the temperature being approximately consistent with that of the glass and the stainless steel frame is gradually formed, and good brazing connection is achieved.
And then spraying atomized water into the brazing furnace, wherein the water absorbs the heat of argon or carbon dioxide gas and evaporates rapidly, and continuously absorbs the heat of the device and glass in the brazing furnace, the water vapor absorbs heat, rises in temperature and expands to generate pressure, the stainless steel frame rapidly compacts the aluminum paste brazing layer in a softened state under the action of air pressure, and releases heat and solidifies, so that the brazing furnace is rapidly and greatly cooled, and the stainless steel and the aluminum paste are good thermal conductors, and the edge of the glass is wrapped by aluminum paste brazing material, so that the glass in the stainless steel frame can uniformly and rapidly release heat and cool, the glass in the stainless steel frame is toughened, and then the cooling device in the brazing furnace is started to cool the brazing furnace.
Through the process, the cooling speed in the brazing furnace is controlled, the quality of brazing glass and stainless steel through aluminum paste is improved, the characteristics of the glass in the stainless steel frame of the tempered glass are changed, the flat glass within the inner edge of the closed-loop stainless steel frame is still tempered glass, or the glass wrapped in the groove of the closed-loop stainless steel frame is moderately tempered, or the glass wrapped in the groove of the closed-loop stainless steel frame loses the tempering characteristic, and the hollow sandwich glass plate filled with low-heat-conducting gas including argon, carbon dioxide and the like is obtained.
And opening the brazing furnace door when the temperature of the brazing furnace is reduced to 50-55 ℃, and finally obtaining the hollow heat-insulating glass plate brazed by the glass plate and the stainless steel frame and the aluminum paste in vacuum electric heating.
The hollow glass plate with the glass plate frame and the support frame comprises a glass plate, a tin alloy brazing material, a support and a stainless steel frame. Two glass plates forming an interval interlayer cavity correspond to each other in outline shape and size, and annular closed glass plate parallel bending support frames are arranged on the edges of the two flat glass plates.
Or the two glass plates correspond to each other in the outline shape and size to form the interlayer cavity, and the edge of the glass plate forming the interlayer cavity is provided with an annular closed glass plate adjacent edge bending support frame.
Or the two glass plates correspond to each other in the outline shape and size to form the edge of the glass plate of the interval interlayer cavity, and four edge bending support frames of the annular closed glass plate are arranged on the edge of the glass plate.
The annular closed glass plate is bent in parallel to support the frame, or is tempered with the glass synchronously.
The two glass plates are mutually buckled, covered, combined and sealed through T-shaped tin alloy frames arranged on the annular sealed glass plate parallel bending supporting frames.
The sealing surface of the bent supporting frame at the edges of the two glass plates is compounded with tin alloy closed-loop brazing solder.
Two glass plates with the outline shapes and the sizes corresponding to each other are buckled, covered and closed by arranging a closed-loop tin alloy brazing sheet on a bent supporting frame at the edge of the glass plate. And then, wrapping a closed-loop corrugated stainless steel frame with a U-shaped section on the outer side of the periphery of the hollow sandwich glass plate body. And tin alloy brazing solder is filled in the groove of the corrugated stainless steel frame. The elasticity that the cross-section is "U" shape closed loop ripple stainless steel frame is utilized, support the frame with the glass flange edge along bending and set up closed loop tin alloy thin slice zonulae occludens suit of brazing, and utilize the self resilience of closed loop ripple stainless steel frame, make the cross-section be "U" shape closed loop ripple stainless steel frame, with wrap up two closed sheet glass borders that inlay closed loop tin alloy thin slice of brazing closely laminate, make the outside of closed loop tin alloy thin slice of brazing, the parcel has the hollow sandwich glass plate blank that the cross-section is "U" shape ripple stainless steel frame.
Or the outer side of the hollow sandwich glass plate body closed-loop tin alloy brazing sheet is wrapped with a closed-loop stainless steel frame with an L-shaped and reverse L-shaped section in a buckling and sleeving manner, and the closed-loop stainless steel frame is tightly attached to the closed-loop tin alloy brazing sheet. And (3) preparing a hollow sandwich glass plate blank in which the edges of two pieces of glass are wrapped and inlaid with closed-loop tin alloy brazing sheets and tightly attached to a stainless steel closed-loop protection frame.
And then, sending at least one glass plate blank into a brazing furnace, heating and vacuumizing, filling low-heat-conduction gas including argon, carbon dioxide and the like, and brazing the stainless steel frame, the tin alloy and the glass by heating and brazing. And (3) spraying atomized water to the brazing furnace for cooling, and opening the furnace to obtain the hollow glass plate with the glass plate edge frame for supporting and complementarily buckling the metal brazed stainless steel edge frame.
The tin alloy solder comprises Sn-9Zn tin alloy.
A method of making the product glass sheet frame-supported complementary snap-fit metal-brazed stainless steel frame hollow glass sheet of claim 1 comprising glass sheets, tin alloy brazing compound, stainless steel frames, and a brazing furnace. And (2) separating a hollow interlayer between the two glass plates through a supporting frame, arranging tin alloy brazing materials on the sealing covers and surfaces of the two glass plates and the edges of the glass plates, and wrapping a stainless steel frame on the frame of the aluminum alloy brazing profile to prepare a hollow interlayer glass plate blank.
And then horizontally placing at least one hollow sandwich glass plate blank into a brazing furnace provided with a supporting base, a fixed supporting clamp or a tray. And closing a brazing furnace door, heating and vacuumizing the glass plate blank in the brazing furnace, and filling low-heat-conduction gas including argon, carbon dioxide and the like into the brazing furnace after the heating temperature, the vacuum degree and the set vacuumizing time are reached, so that the glass hollow interlayer is filled with the low-heat-conduction gas with the same pressure as that of the brazing furnace.
The tin alloy brazing sheet melts uniformly when heated to 300 ℃. Under the capillary action of contact gaps between stainless steel and glass, between glass and glass, and between stainless steel and stainless steel, and the action of self-cohesion after the brazing material is melted, the brazing material and the brazing surface of the glass and the brazing surface of the stainless steel are melted and fully soaked and wetted, and the brazing of tin alloy to the glass and the stainless steel frame is realized.
Although tin alloy solders have good kovar properties, stresses can be induced in the joint during cooling due to inconsistent shrinkage, taking into account the large difference in linear expansion coefficients between glass and tin alloy solders. Therefore, the stainless steel frame is deformed as much as possible, the stress generated by the tin alloy brazing material due to expansion with heat and contraction with cold is absorbed, and the brazing quality between the stainless steel frame and the glass is ensured.
Meanwhile, the groove of the closed-loop stainless steel frame with the U-shaped section is designed to be deeper, so that the closed-loop tin alloy frame corresponding to the groove is also longer, and the formed brazing connection sealing layer is thicker, so that the brazing strength of the tin alloy, glass and stainless steel is high, and the airtight sealing performance is good.
Spraying atomized water into the brazing furnace, absorbing the heat of argon or carbon dioxide gas by the water to evaporate rapidly and continuously absorbing the heat of a device and glass in the brazing furnace, absorbing heat by water vapor, raising the temperature and expanding to generate pressure, rapidly compacting the tin alloy brazing layer in a softened state by the stainless steel frame under the action of air pressure, releasing heat and solidifying the tin alloy brazing layer, and then, or starting a cooling device arranged in the brazing furnace to cool the brazing furnace.
By the process, the quality of the tin alloy brazing between the glass and the stainless steel is improved, and the plate glass is still toughened glass. Has a hollow laminated glass plate filled with low heat-conducting gas including argon, carbon dioxide and the like.
And opening the brazing furnace door when the temperature of the brazing furnace is reduced to 50-55 ℃, and finally obtaining the vacuum heat-insulating glass plate brazed by the glass plate and the stainless steel frame and the tin alloy.
The glass plate frame supports the complementary buckled metal brazed stainless steel frame hollow glass plate, the glass plate comprises a glass original sheet, toughened glass, cloth-pattern glass, embossed glass, halogenated glass, frosted glass and coated glass, and functional films of the coated glass comprise an antireflection film, a metal film and a decorative film. When the surface of the glass panel is compounded with the coating, the coating must be removed from the brazing surface of the glass panel.
The tempered glass panel which is cut, edged and tempered according to the design size of the flat glass with proper thickness is used as a raw material. Deoiling, cleaning and drying the glass brazing surface.
The glass plate frame supports a complementary buckled metal brazing stainless steel frame hollow glass plate, and the periphery of the hollow sandwich glass plate body is wrapped with a closed-loop corrugated stainless steel frame with an inverted U-shaped section. The U-shaped corrugated stainless steel channel section is formed by stamping and stretching a stainless steel strip through a die, or the U-shaped corrugated stainless steel channel section is formed by rolling the stainless steel strip through a rolling mill. The closed-loop corrugated stainless steel frame is a U-shaped corrugated stainless steel groove profile, and is welded by bending or cutting to form the elastic-shrinkage closed-loop corrugated stainless steel frame.
The inverted U-shaped closed-loop corrugated stainless steel frame groove needs to be deoiled, cleaned and dried when in use.
The glass plate frame supports a complementary buckled metal brazed stainless steel frame hollow glass plate, and the outer side of the periphery of a hollow sandwich glass plate body is wrapped with a hollow sandwich glass plate structure protective frame formed by buckling and sleeving a closed-loop stainless steel frame with an L-shaped and an inverse L-shaped cross section. The L-shaped stainless steel section is formed by stamping and stretching a die, or the L-shaped stainless steel section is formed by rolling a rolling mill. The closed loop 'L' -shaped stainless steel frame is an 'L' -shaped stainless steel section bar and is made into the stainless steel frame by bending welding or cutting welding.
When the L-shaped stainless steel section is used, deoiling, cleaning and drying treatment are required.
The glass plate frame supports the hollow glass plate with the complementary buckled metal brazing stainless steel frame, and an ultrasonic transducer for improving the brazing quality of glass and glass, glass and metal is arranged on a glass tray of a brazing furnace.
The invention has the beneficial effects that:
the invention utilizes a brand new metal brazing process to braze the glass and the stainless steel frame through metal brazing. The invention overcomes the problem that the corners of the glass are not protected and are fragile, can improve the quality of glass and metal brazing, has the characteristics of simple operation, low cost, high strength, low manufacturing cost, good air tightness, good heat insulation performance, low energy consumption and good perspective effect, and can obtain good economic benefit, environmental benefit and social benefit.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a cross-sectional view of a metal-brazed hollow glass sheet provided with a glass parallel-bent support frame and a "U" -shaped corrugated stainless steel channel profile frame according to the present invention;
FIG. 2 is a cross-sectional view of a metal-brazed hollow glass plate provided with glass parallel bending support frames and buckling L-shaped stainless steel frames according to the present invention;
FIG. 3 is a cross-sectional view of a metal brazed hollow glass panel provided with a glass adjacent edge bent support frame and a "U" -shaped corrugated stainless steel channel profile frame in accordance with the present invention;
FIG. 4 is a cross-sectional view of a metal-brazed hollow glass plate provided with glass adjacent-edge bent support frames and buckled with an L-shaped stainless steel frame according to the present invention;
FIG. 5 is a cross-sectional view of a metal brazed hollow glass panel provided with a glass four-sided bent support frame, and a "U" -shaped corrugated stainless steel channel profile frame in accordance with the present invention;
FIG. 6 is a cross-sectional view of a metal-brazed hollow glass plate provided with a glass four-side bent support frame and a buckled L-shaped stainless steel frame according to the present invention.
In the figure: 1 'U' -shaped stainless steel corrugated protective frame, 2 metal brazing layers, 3 lower side toughened plate glass, 4 hollow interlayers, 5 upper side toughened plate glass, 6 bent glass supporting frames, 7 outer side 'L' -shaped stainless steel protective frame and 8 inner side 'L' -shaped stainless steel protective frame.
Detailed Description
As shown in fig. 1: the parallel bending supporting frame 6 of the upper toughened glass 5 and the parallel bending supporting frame 6 of the lower toughened glass 3 correspond to each other in the shape and size of the outline and are buckled in a complementary mode to form the hollow interlayer 4 at intervals. And the hollow glass plate with the U-shaped corrugated stainless steel groove profile frame is brazed, and the hollow glass plate with the glass plate frame supporting complementary buckled metal brazed stainless steel frame is manufactured by brazing and sealing the closed-loop U-shaped corrugated stainless steel protective frame 1 and the metal brazing layer 2.
As shown in fig. 2: the parallel bending supporting frame 6 of the upper toughened glass 5 and the parallel bending supporting frame 6 of the lower toughened glass 3 correspond to each other in the shape and size of the outline and are buckled in a complementary mode to form the hollow interlayer 4 at intervals. The glass plate frame is made to support the complementary buckled metal brazed stainless steel frame hollow glass plate through the buckling of the inner closed loop L-shaped stainless steel protective frame 8 and the outer closed loop L-shaped stainless steel protective frame 7 and the brazing sealing of the metal brazing layer 2.
As shown in fig. 3: the adjacent edge of the upper toughened glass 5 is bent to support the frame 6, and the adjacent edge of the lower toughened glass 3 is bent to support the frame 6, the outline shape and the size are mutually corresponding, and the hollow interlayer 4 is formed by complementary buckling and spacing. The hollow glass plate with the glass plate frame supporting and complementary buckling metal brazing stainless steel frame is manufactured by brazing and sealing the closed-loop U-shaped stainless steel corrugated protective frame 1 and the metal brazing layer 2.
As shown in fig. 4: the adjacent edge of the upper toughened glass 5 is bent to support the frame 6, and the adjacent edge of the lower toughened glass 3 is bent to support the frame 6, the outline shape and the size are mutually corresponding, and the hollow interlayer 4 is formed by complementary buckling and spacing. The glass plate frame is made to support the complementary buckled metal brazed stainless steel frame hollow glass plate through the buckling of the inner closed loop L-shaped stainless steel protective frame 8 and the outer closed loop L-shaped stainless steel protective frame 7 and the brazing sealing of the metal brazing layer 2.
As shown in fig. 5: the four sides of the upper toughened glass 5 are bent to support the frame 6, and the four sides of the lower toughened glass 3 are bent to support the frame 6, which correspond to each other in outline shape and size and are buckled complementarily to form the hollow interlayer 4 at intervals. The hollow glass plate with the glass plate frame supporting and complementary buckling metal brazing stainless steel frame is manufactured by brazing and sealing the closed-loop U-shaped stainless steel corrugated protective frame 1 and the metal brazing layer 2.
As shown in fig. 6: the four sides of the upper toughened glass 5 are bent to support the frame 6, and the four sides of the lower toughened glass 3 are bent to support the frame 6, which correspond to each other in outline shape and size and are buckled complementarily to form the hollow interlayer 4 at intervals. The glass plate frame is made to support the complementary buckled metal brazed stainless steel frame hollow glass plate through the buckling of the inner closed loop L-shaped stainless steel protective frame 8 and the outer closed loop L-shaped stainless steel protective frame 7 and the brazing sealing of the metal brazing layer 2.
Claims (10)
1. Glass board frame supports complementary lock metal brazing stainless steel frame cavity glass board, including glass board, aluminium or aluminium alloy brazing section bar, stainless steel frame, characterized by: the two glass plates correspond to each other in outline shape and size to form an interval interlayer cavity, and the edge of the glass plate is provided with an annular closed glass plate parallel bending support frame;
or the two glass plates correspond to each other in the outline shape and size to form the edge of the glass plate of the interval interlayer cavity, and the adjacent edge bending support frame of the annular closed glass plate is arranged on the edge of the glass plate;
or the two glass plates correspond to each other in the outline shape and size to form the edge of the glass plate of the interval interlayer cavity, and four edge bending support frames of the annular closed glass plate are arranged on the edge of the glass plate;
the annular closed glass plate is bent in parallel to support the frame, or is tempered with the glass synchronously;
the two glass plates are mutually buckled, covered and closed by a T-shaped aluminum or aluminum alloy frame arranged on the annular closed glass plate parallel bending support frame for sealing;
then, tightly wrapping a closed-loop aluminum or aluminum alloy section with an inverted U-shaped section on the outer side of the periphery of the hollow sandwich glass plate body; the self elasticity of the closed-loop corrugated stainless steel frame with the inverted U-shaped cross section is utilized to stretch and sleeve the outer side of the periphery of the hollow sandwich glass plate body, and the self resilience of the closed-loop corrugated stainless steel frame is utilized to enable the closed-loop corrugated stainless steel frame with the inverted U-shaped cross section to be closely attached to the aluminum or aluminum alloy section on the outer side of the periphery of the hollow sandwich glass plate body; the periphery of the manufactured insulating glass plate body is provided with an aluminum or aluminum alloy closed loop and a stainless steel closed loop protection frame, and a hollow sandwich glass plate blank for connecting the closed loop aluminum or aluminum alloy frame and the stainless steel closed loop protection frame is formed;
or the aluminum or aluminum alloy section bar on the outer side of the periphery of the hollow sandwich glass plate body is wrapped with a closed loop stainless steel frame with L-shaped and reverse L-shaped sections which is buckled and sleeved to form a hollow sandwich glass plate edge structure protection frame; the periphery of the manufactured insulating glass plate body is provided with an aluminum or aluminum alloy closed loop and a stainless steel closed loop protection frame, and a hollow sandwich glass plate blank for connecting the closed loop aluminum or aluminum alloy frame and the stainless steel closed loop protection frame is formed;
then, at least one glass plate blank is sent into a brazing furnace, heating and vacuumizing are carried out, low-heat-conducting gas including argon, carbon dioxide and the like is filled, and brazing of a stainless steel frame, aluminum or aluminum alloy and glass is realized through electric heating brazing; spraying atomized water to a brazing furnace for cooling, and then opening the furnace to obtain a U-shaped glass stainless steel protective frame metal brazing hollow glass plate with mutual buckling;
the aluminum or aluminum alloy brazing material includes Al and Al-containing brazing materials including Al-Si system, Al-Cu-Si system, and Zn-AI system.
2. A method of making the product of claim 1, a "U" shape interlocking glass stainless steel protective frame metal brazed hollow glass sheet comprising a glass sheet, an aluminum or aluminum alloy brazing profile, a stainless steel frame, a brazing furnace, characterized in that: a hollow interlayer is formed between the two glass plates through a supporting frame, aluminum or aluminum alloy brazing profiles are arranged on the sealing covers and the surfaces of the two glass plates and the edges of the glass plates, and stainless steel frames wrap the frames of the aluminum alloy brazing profiles to form a blank of the hollow interlayer glass plate;
then, horizontally placing at least one hollow sandwich glass plate blank into a brazing furnace provided with a supporting base, a fixed supporting clamp or a tray, connecting a compaction electric clamp on a stainless steel frame wrapped at the outer side of the joint of a closed-loop aluminum or aluminum alloy frame, and connecting another compaction electric clamp at another point at the equal distance of the stainless steel frame to form two paths of conductive loops with equal resistance for wrapping the glass frame; closing a brazing furnace door, heating and vacuumizing a glass plate blank in the brazing furnace, and filling low-heat-conduction gas including argon, carbon dioxide and the like into the brazing furnace after the heating temperature, the vacuum degree and the set vacuumizing time are reached, so that the glass hollow interlayer is filled with the low-heat-conduction gas with the same pressure as that of the brazing furnace; then, connecting a low-voltage and high-current heating power supply to the two pressing electric clamps on the glass plate blank;
because the resistance of the aluminum or aluminum alloy frame in the stainless steel frame, the glass, the aluminum or aluminum alloy frame is the minimum, the current in the aluminum or aluminum alloy frame is the maximum, the aluminum or aluminum alloy frame rapidly heats, and the aluminum or aluminum alloy frame rapidly heats and is uniformly melted; under the capillary action of contact gaps between stainless steel and glass, between glass and glass, between stainless steel and the action of self-cohesion after the brazing material is melted, the brazing material and the brazing surface of the glass and the brazing surface of the stainless steel are melted and fully soaked and wetted, and the brazing of aluminum or aluminum alloy to the surfaces of the glass and the stainless steel is realized;
in the process, the aluminum is rapidly heated and changed into liquid aluminum, and the glass brazed with the stainless steel aluminum is not completely softened due to poor heat-conducting property and short heating time; whereas at 720 ℃, the main components of the glass, Si02 and Al, react chemically: 4A1+3Si02=2a1203+3Si, i.e. the interface between the glass and the aluminum can be strongly bonded by chemical reaction; meanwhile, at 720 ℃, the stainless steel is not softened, the surface of the stainless steel oxide layer and the aluminum generate chemical reaction, namely the interface of the stainless steel and the aluminum is firmly combined due to the chemical reaction; however, the temperature of 720 ℃ is the softening temperature of common glass, so that if the brazing temperature is reduced, the glass is not obviously softened, and the process requirements can be met; the aluminum alloy brazing material is selected and used for reducing the brazing temperature between the glass and the stainless steel frame, improving the brazing quality between the glass and the stainless steel and reducing the difficulty of the brazing process;
although the aluminum or aluminum alloy brazing material has good kovar characteristics, in consideration of large difference of linear expansion coefficients of glass and the aluminum or aluminum alloy brazing material, certain stress can be generated on a brazing surface due to inconsistent shrinkage in a cooling process; therefore, the stainless steel frame is deformed as much as possible, the stress generated by aluminum or aluminum alloy brazing materials due to expansion caused by heat and contraction caused by cold is absorbed, and the brazing quality between the stainless steel frame and the glass is ensured;
meanwhile, the groove of the closed-loop stainless steel frame with the U-shaped section is designed to be deeper, so that the closed-loop aluminum or aluminum alloy frame corresponding to the groove is as long as the closed-loop aluminum or aluminum alloy frame, and the formed brazing connection sealing layer is thicker, so that the brazing strength of aluminum or aluminum alloy, glass and stainless steel is high, and the airtight sealing performance is good;
after the aluminum or aluminum alloy frame is heated and uniformly melted, the resistance is suddenly increased, and the current is instantly decreased; therefore, the phenomenon can be used for automatically and intelligently controlling the electrifying and heating time, accurately controlling the brazing temperature and well realizing the brazing of the aluminum or the aluminum alloy with the plate glass and the stainless steel frame;
when the brazing heating power supply is timely cut off, the aluminum or aluminum alloy brazing layer is cooled, a temperature field with the temperature being approximately consistent with that of the glass and the stainless steel frame is gradually formed, and good brazing connection is realized;
spraying atomized water into the brazing furnace, wherein the water absorbs the heat of argon or carbon dioxide gas to evaporate rapidly and continuously absorbs the heat of the device and glass in the brazing furnace, the water vapor absorbs heat, rises in temperature and expands to generate pressure, the stainless steel frame rapidly compacts the aluminum or aluminum alloy brazing layer in a softened state under the action of air pressure, the aluminum or aluminum alloy brazing layer releases heat and solidifies, and the brazing furnace is rapidly and greatly cooled;
through the process, the cooling speed in the brazing furnace is controlled, the quality of brazing glass and stainless steel through aluminum or aluminum alloy is improved, the characteristics of the glass in the stainless steel frame of the tempered glass are changed, the flat glass in the inner edge of the closed-loop stainless steel frame is still tempered glass, or the glass wrapped in the groove of the closed-loop stainless steel frame is moderately tempered, or the glass wrapped in the groove of the closed-loop stainless steel frame loses the tempering characteristic, and the hollow sandwich glass plate filled with low-heat-conduction gas such as argon, carbon dioxide and the like is obtained;
and opening the brazing furnace door when the temperature of the brazing furnace is reduced to 50-55 ℃, and finally obtaining the hollow heat-insulating glass plate brazed by the glass plate and the stainless steel frame and the aluminum or aluminum alloy in vacuum electric heating.
3. Glass board frame supports complementary lock metal brazing stainless steel frame cavity glass board, including glass board, aluminium paste brazing flux, stainless steel frame, characterized by: the two glass plates correspond to each other in outline shape and size to form an interval interlayer cavity, and the edge of the glass plate is provided with an annular closed glass plate parallel bending support frame;
or the two glass plates correspond to each other in the outline shape and size to form the edge of the glass plate of the interval interlayer cavity, and the adjacent edge bending support frame of the annular closed glass plate is arranged on the edge of the glass plate;
or the two glass plates correspond to each other in the outline shape and size to form the edge of the glass plate of the interval interlayer cavity, and four edge bending support frames of the annular closed glass plate are arranged on the edge of the glass plate;
the annular closed glass plate is bent in parallel to support the frame, or is tempered with the glass synchronously;
arranging aluminum paste brazing flux on the annular closed glass plate bending supporting frames which correspond to each other in size, and buckling, covering and combining the annular closed glass plate bending supporting frames to seal the annular closed glass plate bending supporting frames;
then, tightly wrapping a closed loop aluminum paste profile with an inverted U-shaped section on the outer side of the periphery of the hollow sandwich glass plate body; the self elasticity of the closed-loop corrugated stainless steel frame with the inverted U-shaped cross section is utilized to stretch and sleeve the outer side of the periphery of the hollow sandwich glass plate body, and the self resilience of the closed-loop corrugated stainless steel frame is utilized to enable the closed-loop corrugated stainless steel frame with the inverted U-shaped cross section to be closely attached to the aluminum paste profile on the outer side of the periphery of the hollow sandwich glass plate body; or the aluminum paste section bar on the outer side of the periphery of the hollow sandwich glass plate body is wrapped with a closed loop stainless steel frame with L-shaped and reverse L-shaped sections which are buckled and sleeved to form a hollow sandwich glass plate edge structure protection frame; the periphery of the manufactured insulating glass plate body is provided with an aluminum paste closed loop and a stainless steel closed loop protection frame, and a hollow sandwich glass plate blank of the closed loop aluminum paste frame and the stainless steel closed loop protection frame is connected; drying the hollow sandwich glass plate blank;
then, at least one glass plate blank is sent into a brazing furnace, heating and vacuumizing are carried out, low-heat-conducting gas including argon, carbon dioxide and the like is filled, and brazing of a stainless steel frame, aluminum paste and glass is realized through electric heating brazing; spraying atomized water to a brazing furnace for cooling, and then opening the furnace to obtain a hollow glass plate with a glass plate edge frame support and a complementary buckled metal brazed stainless steel edge frame;
the brazing aluminum paste comprises low-temperature glass aluminum paste, medium-temperature glass aluminum paste and high-temperature glass aluminum paste.
4. A method of making the product glass sheet frame-supported complementary snap-fit metal-brazed stainless steel frame hollow glass sheet of claim 1 comprising glass sheets, aluminum paste brazing profiles, stainless steel frames, and a brazing furnace, characterized by: a hollow interlayer is formed between the two glass plates through a supporting frame, aluminum paste brazing profiles are arranged on the sealing covers and the surfaces of the two glass plates and the edges of the glass plates, and stainless steel frames wrap the frames of the aluminum alloy brazing profiles to form a blank of the hollow interlayer glass plate;
then, horizontally placing at least one hollow sandwich glass plate blank into a brazing furnace provided with a supporting base, a fixed supporting clamp or a tray, connecting a compaction electric clamp on a stainless steel frame wrapped at the outer side of the joint of a closed-loop aluminum paste frame, and connecting another compaction electric clamp at another point at the equal distance of the stainless steel frame to form two paths of conductive loops with equal resistance wrapping the glass frame; closing a brazing furnace door, heating and vacuumizing a glass plate blank in the brazing furnace, and filling low-heat-conduction gas including argon, carbon dioxide and the like into the brazing furnace after the heating temperature, the vacuum degree and the set vacuumizing time are reached, so that the glass hollow interlayer is filled with the low-heat-conduction gas with the same pressure as that of the brazing furnace; then, connecting a low-voltage and high-current heating power supply to the two pressing electric clamps on the glass plate blank;
because the resistance of the aluminum paste frame among the stainless steel frame, the glass and the aluminum paste frame is minimum, the current in the aluminum paste frame is maximum, the aluminum paste frame is heated rapidly, and the aluminum paste frame is heated rapidly and melted uniformly; under the capillary action of contact gaps between stainless steel and glass, between glass and glass, between stainless steel and the action of self-cohesion after the brazing material is melted, the brazing material and the brazing surface of the glass and the brazing surface of the stainless steel are melted and fully soaked and wetted, and the brazing of the aluminum paste to the glass surface and the stainless steel surface is realized;
in the process, the aluminum is rapidly heated and changed into liquid aluminum, and the glass brazed with the stainless steel aluminum is not completely softened due to poor heat-conducting property and short heating time; whereas at 720 ℃, the main components of the glass, Si02 and Al, react chemically: 4A1+3Si02=2a1203+3Si, i.e. the interface between the glass and the aluminum can be strongly bonded by chemical reaction; meanwhile, at 720 ℃, the stainless steel is not softened, the surface of the stainless steel oxide layer and the aluminum generate chemical reaction, namely the interface of the stainless steel and the aluminum is firmly combined due to the chemical reaction; however, the temperature of 720 ℃ is the softening temperature of common glass, so that if the brazing temperature is reduced, the glass is not obviously softened, and the process requirements can be met; the aluminum alloy brazing material is selected and used for reducing the brazing temperature between the glass and the stainless steel frame, improving the brazing quality between the glass and the stainless steel and reducing the difficulty of the brazing process;
although the aluminum paste brazing solder has good kovar characteristics, certain stress can be generated on a brazing surface due to inconsistent shrinkage in the cooling process in consideration of large difference of linear expansion coefficients of glass and the aluminum paste brazing solder; therefore, the stainless steel frame is deformed as much as possible, the stress generated by the aluminum paste brazing material due to expansion caused by heat and contraction caused by cold is absorbed, and the brazing quality between the stainless steel frame and the glass is ensured;
meanwhile, the groove of the closed-loop stainless steel frame with the U-shaped section is designed to be deeper, so that the closed-loop aluminum paste frame corresponding to the groove is also longer, and the formed brazing connection sealing layer is thicker, so that the brazing strength of the aluminum paste, glass and stainless steel is high, and the airtight sealing performance is good;
after the aluminum paste frame is heated and uniformly melted, the resistance is suddenly increased, and the current is instantly decreased; therefore, the phenomenon can be used for automatically and intelligently controlling the electrifying and heating time, accurately controlling the brazing temperature and well realizing the brazing of the aluminum paste, the plate glass and the stainless steel frame;
when the brazing heating power supply is timely cut off, the aluminum paste brazing layer is cooled, a temperature field with the temperature being approximately consistent with that of the glass and the stainless steel frame is gradually formed, and good brazing connection is realized;
spraying atomized water into the brazing furnace, wherein the water absorbs the heat of argon or carbon dioxide gas to evaporate rapidly and continuously absorbs the heat of the device and glass in the brazing furnace, the water vapor absorbs heat, rises in temperature and expands to generate pressure, the stainless steel frame rapidly compacts the aluminum paste brazing layer in a softened state under the action of air pressure, releases heat and solidifies, and rapidly and greatly reduces the temperature of the brazing furnace;
through the process, the cooling speed in the brazing furnace is controlled, the quality of the glass and the stainless steel brazed through aluminum paste is improved, the characteristics of the glass in the stainless steel frame of the tempered glass are changed, the flat glass in the inner edge of the closed-loop stainless steel frame is still tempered glass, or the glass wrapped in the groove of the closed-loop stainless steel frame is moderately tempered, or the glass wrapped in the groove of the closed-loop stainless steel frame loses the tempering characteristic, and the hollow sandwich glass plate filled with low-heat-conduction gas such as argon, carbon dioxide and the like is obtained;
and opening the brazing furnace door when the temperature of the brazing furnace is reduced to 50-55 ℃, and finally obtaining the hollow heat-insulating glass plate brazed by the glass plate and the stainless steel frame and the aluminum paste in vacuum electric heating.
5. Glass board frame supports complementary lock metal brazing stainless steel frame cavity glass board, including glass board, tin alloy brazing solder, support, stainless steel frame, characterized by: two glass plates forming an interval interlayer cavity correspond to each other in outline shape and size, and annular closed glass plate parallel bending support frames are arranged on the edges of the two flat glass plates;
or the two glass plates correspond to each other in the outline shape and size to form the edge of the glass plate of the interval interlayer cavity, and the adjacent edge bending support frame of the annular closed glass plate is arranged on the edge of the glass plate;
or the two glass plates correspond to each other in the outline shape and size to form the edge of the glass plate of the interval interlayer cavity, and four edge bending support frames of the annular closed glass plate are arranged on the edge of the glass plate;
the annular closed glass plate is bent in parallel to support the frame, or is tempered with the glass synchronously;
the two glass plates are mutually buckled, covered and closed by a T-shaped tin alloy frame arranged on the annular closed glass plate parallel bending support frame for sealing;
the sealing surfaces of the bent supporting frames at the edges of the two glass plates are compounded with tin alloy closed-loop brazing solder;
two glass plates with the outline shapes and the sizes corresponding to each other are buckled, covered and closed by arranging a closed-loop tin alloy brazing sheet on a bent supporting frame at the edge of the glass plate; then, wrapping a closed-loop corrugated stainless steel frame with a U-shaped section on the outer side of the periphery of the hollow sandwich glass plate body; tin alloy brazing solder is filled in the groove of the corrugated stainless steel frame; the method comprises the following steps of tightly connecting and sleeving a closed-loop tin alloy brazing sheet arranged on a bent supporting frame with a glass plate edge by utilizing the elasticity of a closed-loop corrugated stainless steel frame with a U-shaped section, enabling the closed-loop tin alloy brazing sheet with the U-shaped section to be tightly attached to the edges of two laminated glass wrapped with the closed-loop tin alloy brazing sheet, so as to manufacture the outer side of the closed-loop tin alloy brazing sheet, and wrapping a hollow sandwich glass plate blank with the U-shaped corrugated stainless steel frame;
or the outer side of the hollow sandwich glass plate body closed-loop tin alloy brazing sheet is wrapped with a closed-loop stainless steel frame with an L-shaped and reverse L-shaped section in a buckling and sleeving manner and is tightly attached to the closed-loop tin alloy brazing sheet; making two hollow sandwich glass plate blanks, wherein the edges of the two pieces of glass are wrapped with closed-loop tin alloy brazing sheets which are embedded in the two pieces of glass and are tightly attached to a stainless steel closed-loop protection frame;
then, at least one glass plate blank is sent into a brazing furnace, heating and vacuumizing are performed, low-heat-conduction gas including argon, carbon dioxide and the like is filled, and brazing of the stainless steel frame, the tin alloy and the glass is realized through heating and brazing; spraying atomized water to a brazing furnace for cooling, and then opening the furnace to obtain a hollow glass plate with a glass plate edge frame support and a complementary buckled metal brazed stainless steel edge frame;
the tin alloy solder comprises Sn-9Zn tin alloy.
6. A method of making the product glass sheet frame-supported complementary snap-fit metal-brazed stainless steel frame hollow glass sheet of claim 1 comprising glass sheets, tin alloy brazing compound, stainless steel frames, and a brazing furnace, characterized by: a hollow interlayer is formed between the two glass plates through a supporting frame, tin alloy brazing solder is arranged on the sealing covers and the surfaces of the two glass plates and the edges of the glass plates, and a stainless steel frame is wrapped on the tin alloy brazing solder frame to form a hollow interlayer glass plate blank;
then horizontally placing at least one hollow sandwich glass plate blank into a brazing furnace provided with a supporting base, a fixed supporting clamp or a tray; closing a brazing furnace door, heating and vacuumizing a glass plate blank in the brazing furnace, and filling low-heat-conduction gas including argon, carbon dioxide and the like into the brazing furnace after the heating temperature, the vacuum degree and the set vacuumizing time are reached, so that the glass hollow interlayer is filled with the low-heat-conduction gas with the same pressure as that of the brazing furnace;
the tin alloy brazing sheet is uniformly melted when the temperature is raised to 300 ℃; under the capillary action of contact gaps between stainless steel and glass, between glass and glass, and between stainless steel and stainless steel, and under the action of self-cohesion after the brazing material is melted, the brazing material and the brazing surface of the glass and the brazing surface of the stainless steel are melted and fully soaked and wetted, so that the brazing of tin alloy to the glass and the stainless steel frame is realized;
although the tin alloy brazing solder has good kovar characteristics, considering that the linear expansion coefficients of glass and the tin alloy brazing solder are greatly different, stress can be generated in a joint due to inconsistent shrinkage in the cooling process; therefore, the stainless steel frame is deformed as much as possible, the stress generated by the tin alloy brazing material due to expansion with heat and contraction with cold is absorbed, and the brazing quality between the stainless steel frame and the glass is ensured;
meanwhile, the groove of the stainless steel frame with the U-shaped closed loop section is designed to be deeper, so that the closed loop tin alloy frame corresponding to the groove is also longer, and the formed brazing connection sealing layer is thicker, so that the brazing strength of tin alloy, glass and stainless steel is high, and the airtight sealing performance is good;
spraying atomized water into the brazing furnace, wherein the water absorbs the heat of argon or carbon dioxide gas to evaporate rapidly and continuously absorbs the heat of a device and glass in the brazing furnace, the water vapor absorbs heat, rises in temperature and expands to generate pressure, the stainless steel frame rapidly compacts the tin alloy brazing layer in a softened state under the action of air pressure and releases heat and solidifies, and then, or starting a cooling device arranged in the brazing furnace to cool the brazing furnace;
by the process, the quality of the tin alloy brazing between the glass and the stainless steel is improved, and the plate glass is still toughened glass; the glass plate is filled with low-heat-conductivity gas such as argon, carbon dioxide and the like;
and opening the brazing furnace door when the temperature of the brazing furnace is reduced to 50-55 ℃, and finally obtaining the vacuum heat-insulating glass plate brazed by the glass plate and the stainless steel frame and the tin alloy.
7. A glass sheet frame supporting a complementary snap-fit metal-brazed stainless steel frame hollow glass sheet as claimed in claim 1, 2, 3, 4, 5 or 6 wherein: the glass plate comprises a glass original sheet, toughened glass, cloth-pattern glass, embossed glass, halogenated glass, frosted glass and coated glass, and functional films of the coated glass comprise an anti-reflection film, a metal film and a decorative film; the surface of the glass panel is compounded with the coating, so that the coating must be removed from the brazing surface of the glass panel;
cutting flat glass with proper thickness according to the design size, edging and toughening the toughened glass panel, and using the toughened glass panel as a raw material; deoiling, cleaning and drying the glass brazing surface.
8. A glass sheet frame supporting a complementary snap-fit metal-brazed stainless steel frame hollow glass sheet as claimed in claim 1, 2, 3, 4, 5 or 6 wherein: the outer side of the periphery of the hollow sandwich glass plate body is wrapped with a closed-loop corrugated stainless steel frame with an inverted U-shaped section; the U-shaped corrugated stainless steel channel section is formed by stamping and stretching a stainless steel strip through a die, or the U-shaped corrugated stainless steel channel section is formed by rolling the stainless steel strip through a rolling mill; the closed-loop corrugated stainless steel frame is a U-shaped corrugated stainless steel groove profile, and is made into an elastic closed-loop corrugated stainless steel frame by bending welding or cutting welding;
the inverted U-shaped closed-loop corrugated stainless steel frame groove needs to be deoiled, cleaned and dried when in use.
9. A glass sheet frame supporting a complementary snap-fit metal-brazed stainless steel frame hollow glass sheet as claimed in claim 1, 2, 3, 4, 5 or 6 wherein: the outer side of the periphery of the hollow sandwich glass plate body is wrapped with a hollow sandwich glass plate structure protection frame formed by buckling and sleeving a closed-loop stainless steel frame with an L-shaped and a reverse L-shaped section; the L-shaped stainless steel section is a stainless steel strip and is formed by stamping and stretching through a die, or the L-shaped stainless steel section is a stainless steel strip and is formed by rolling through a rolling mill; the closed loop 'L' -shaped stainless steel frame is an 'L' -shaped stainless steel section bar and is made into a stainless steel frame by bending welding or cutting welding;
when the L-shaped stainless steel section is used, deoiling, cleaning and drying treatment are required.
10. A glass sheet frame supporting a complementary snap-fit metal-brazed stainless steel frame hollow glass sheet as claimed in claim 1, 2, 3, 4, 5 or 6 wherein: the glass tray of the brazing furnace is provided with an ultrasonic transducer for improving the brazing quality of glass and glass, glass and metal.
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| CN201811508401.2A CN111302660B (en) | 2018-12-11 | 2018-12-11 | Glass plate frame supporting complementary buckling metal brazing stainless steel frame hollow glass plate |
| PCT/CN2018/121143 WO2020118665A1 (en) | 2018-12-11 | 2018-12-14 | Glass-plate frame support complementary snap-fit metal brazing stainless steel frame hollow glass plate |
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| CN201811508401.2A CN111302660B (en) | 2018-12-11 | 2018-12-11 | Glass plate frame supporting complementary buckling metal brazing stainless steel frame hollow glass plate |
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| WO2020118665A1 (en) | 2020-06-18 |
| CN111302660B (en) | 2023-09-29 |
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