71results about How to "Eliminate edge stress" patented technology

The invention relates to a tapered roller bearing with high strength and low friction torque, comprising an outer ring, an inner ring, a plurality of rollers and a cage, wherein the rollers are clamped between the outer ring and the inner ring and used for supporting and realizing relatively rotating; and the cage is used for guiding the rollers to move; a big rib of the inner ring is a convex curved rib; the root part width of the big rib of the inner ring is larger than 6.47 mm, and the axial depth of an oil groove is smaller than 0.5 mm; the raceway buses and the roller buses of the inner ring and the outer ring are in a logarithm curve convexity shape; the number of the rollers is less than 16, the length of the rollers is smaller than 24 mm, and the convex diameter of a raceway is small; the sphere base surface diameter of the rollers is smaller than 136 mm, and the diameter of the rollers is larger than 21.671 mm. The invention has long service life, saves the energy and reduces the energy consumption.

A composite vacuum plate with the edge sealed by a seal strip comprises a face plate, a core plate and a vacuum cavity and is characterized in that the face plate is fixed to the upper surface outside the vacuum cavity in a welding or bonding mode, the core plate is arranged at the bottom of the inside of the vacuum cavity, the vacuum cavity is formed by welding a low-carbon steel plate, the face plate and / or the core plate provide / provides additional strength for the vacuum cavity, the vacuum cavity is welded and sealed by utilizing a glass solder in a vacuum furnace under the high vacuum and high temperature, the seal strip is arranged at the welding position of the edge portion of the low-carbon steel plate, the coefficient of thermal expansion of the low-carbon steel plate is matched with that of the glass solder, and a support is arranged in the vacuum cavity and is independently manufactured or is directly formed on the inner wall of the vacuum cavity or the core plate. A manufacturing method of the composite vacuum plate is simple in process, the air impermeability of the vacuum cavity of the composite vacuum plate can be effectively ensured, the service life of the composite vacuum plate can be prolonged, and strength, heat-insulation, sound-insulation and fireproof performance and a decorative function can be improved.

The invention discloses a glass welded double-vacuum-layer metal vacuum composite plate. The double-vacuum-layer metal vacuum composite plate comprises a shell, core veneers and a vacuum cavity, and is characterized in that the shell is made from low carbon steel plates or low carbon steel composite plates, the core veneers are located in the vacuum cavity formed by hermetically welding the shell, the number of the core veneers is at least two and the core veneers are used for providing additional strength to the vacuum cavity to ensure the smoothness of the vacuum cavity at barometric pressure and the vacuum cavity is hermetically sealed by a glass solder at high vacuum and high temperature in a vacuum furnace; the coefficients of thermal expansion of the low carbon steel plate and the glass solder are matched, a clapboard is arranged in the vacuum cavity and is used for dividing the vacuum cavity into double vacuum layers, and supports are arranged in the vacuum layers and are separately made or directly formed on the vacuum cavity or the clapboard. A production method of the double-vacuum-layer composite vacuum plate provided by the invention is simple in process, and the strength, heat insulation, sound insulation, fire resistance and decorative function can be improved.

A double-vacuum-layer glass composite vacuum heat-insulation plate with the edge sealed by a seal strip comprises a face plate, a connecting layer and a vacuum cavity and is characterized in that the face plate is a glass plate, the vacuum cavity is a closed cavity formed by welding a low-carbon steel plate and sealing the edge by utilizing a glass solder under the constant pressure and high temperature and performing high-temperature sealing under the vacuum condition, the seal strip is arranged at the welding position of the edge portion of the low-carbon steel plate, the sealing is automatic sealing performed by utilizing an air exhaust opening pre-formed in the vacuum cavity and a low-temperature solder in a vacuum furnace according to a liquid seal principle, the low-temperature solder includes low-temperature metal and an alloy solder, a partition plate is arranged in the vacuum cavity and divides the vacuum cavity into two to form double vacuum layers, and supports are arranged in the vacuum layers. A manufacturing method of the double-vacuum-layer glass composite vacuum heat-insulation plate is simple in process, the manufactured double-vacuum-layer glass composite vacuum heat-insulation plate can overcome the shortcomings of existing heat preservation plates and vacuum heat-insulation plates, and strength and heat-insulation, sound-insulation and fireproof performance can be improved.

The invention discloses a glass welded metal vacuum composite insulation board with an extraction opening. The metal vacuum composite insulation board comprises a shell, a core material and a vacuum cavity, and is characterized in that the shell is made from either a low carbon steel plate or a low carbon steel composite plate, the core material is located in the vacuum cavity and is used for providing additional strength to the vacuum cavity to ensure the smoothness of the vacuum cavity at barometric pressure, and the vacuum cavity is a closed cavity formed by carrying out glass welding at normal pressure and high temperature and sealing at high pressure to the shell and the coefficients of thermal expansion of the low carbon steel plate and the glass solder are matched; the sealing is that an extraction opening preformed in the vacuum cavity is automatically sealed by a low temperature solder in a vacuum furnace according to a liquid sealing theory, and the low temperature solder comprises a low temperature metal and an alloy solder. A production method of the metal vacuum composite insulation board provided by the invention is simple in process, the defects of an existing insulation board and an existing vacuum insulated panel can be overcome, and the strength, heat insulation, sound insulation and fire resistance can be improved.

Metal-welded convex vacuum glass provided with edges sealed by sealing grooves and sealing strips and provided with mounting hole(s) is disclosed. The convex vacuum glass comprises upper glass and lower glass, and is characterized in that: the convex vacuum glass is provided with the mounting hole(s); the number of the mounting hole(s) is 1-4; peripheries of the upper glass and the mounting hole(s) are provided with sealing strips; corresponding positions of the periphery of the lower glass and the mounting hole(s) are provided with the sealing grooves and sealing strips; after being rapidly heated, the upper glass and the lower glass are subjected to sheet combining at a high temperature, and peripheries of the upper glass and the lower glass and the periphery of each mounting hole are welded under elevated pressure by metal solder in a vacuum furnace; and a sealed vacuum layer is formed between the upper glass and the lower glass. The vacuum glass and a manufacturing method thereof are simple in process and high in production efficiency. The manufactured tempered vacuum glass eliminates edge sealing stress and maintains tempered characteristics of tempered glass. The tempered vacuum glass can be produced in a large scale, and the service lifetime of the tempered vacuum glass can be prolonged.

The invention relates to a convex vacuum glass having installing holes by metal welding at sealed edge of a sealing strip, which comprises an upper glass and a lower glass, the installing holes are provided, 1-4 installing holes are provided, at least a sealing strip is respectively provided at circumference of the upper glass and the installing hole, at least two sealing strips are provided at circumference of the lower glass, at least a sealing strip is arranged at the lower glass corresponding to the installing hole, the sealing strip of the upper glass is inserted between sealing strips of the lower glass, the upper glass and the lower glass are rapidly heated and laminated at high temperature, the circumference can be welded together by pressurizing through a metal solder in a vacuum furnace. The vacuum glass and its production method have the advantages that the process is simple and the production efficiency is high, the prepared vacuum glass can eliminate the stress of the sealed edge and can keep the toughening characteristic of the toughened glass, so that toughened vacuum glass can be massively produced, and usage life is increased.

The invention discloses a glass welded metal vacuum composite plate. The glass welded composite vacuum insulation board comprises a shell, core veneers and a vacuum cavity, and is characterized in that the shell is made from either low carbon steel plates or low carbon steel composite plates, the core veneers are located in the vacuum cavity formed by hermetically welding the shell and are used for providing additional strength to the shell to ensure the smoothness of the shell at barometric pressure; the vacuum cavity is hermetically sealed by using a glass solder at high vacuum and high temperature in a vacuum furnace, the coefficients of thermal expansion of the low carbon steel plate and the glass solder are matched, the number of the core veneers is at least two, and a support is arranged between every two core veneers and is separately made or directly formed on the core veneers. A production method of the glass welded metal vacuum composite plate provided by the invention is simple in process, the air-tightness of the vacuum cavity of the metal vacuum composite plate can be effectively ensured, the service life of the metal vacuum composite plate can be prolonged, and the strength, heat insulation, sound insulation, fire resistance and decorative function can be enhanced.

The invention discloses a glass welded double-vacuum-layer composite vacuum insulation board. The double-vacuum-layer composite vacuum insulation board comprises a panel, core veneers and a vacuum cavity, and is characterized in that the panel is fixed on the upper outer surface of the vacuum cavity, the core veneers are placed at the inner bottom of the vacuum cavity, and the panel and / or the core veneers are used for providing additional strength to the vacuum cavity so as to ensure the smoothness of the vacuum cavity at barometric pressure, the vacuum cavity is a closed cavity formed by carrying out glass welding at constant temperature and high temperature and sealing at constant pressure to low carbon steel plates and the sealing is that an extraction opening preformed in the vacuum cavity is sealed by a low temperature solder in a vacuum furnace according to a liquid sealing theory; a clapboard is arranged in the vacuum cavity and is used for dividing the vacuum cavity into double vacuum layers, and supports are arranged in the vacuum layers and are separately made or directly formed on the vacuum cavity or the clapboard. A production method of the double-vacuum-layer composite vacuum insulation board provided by the invention is simple in process, the defects of an existing insulation board and an existing vacuum insulated panel can be overcome, and the strength, heat insulation, sound insulation, fire resistance and decorative function can be improved.

The invention discloses a glass welded double-vacuum-layer composite vacuum plate with a getter. The double-vacuum-layer composite vacuum plate comprises a panel, core veneers and a vacuum cavity, and is characterized in that the panel is fixed on the upper outer surface of the vacuum cavity, the core veneers are placed in the inner bottom of the vacuum cavity, the panel and / or the core veneers are used for providing additional strength to the vacuum cavity to ensure the smoothness of the vacuum cavity at barometric pressure, the vacuum cavity is a closed cavity formed by carrying out glass welding at normal pressure and high temperature and sealing at high temperature to a low carbon steel plate; the sealing is that an extraction opening preformed in the vacuum cavity is automatically sealed by a low temperature solder in a vacuum furnace according to a liquid sealing theory, and a clapboard is arranged in the vacuum cavity and is used for dividing the vacuum cavity into double vacuum layers in which supports are arranged. A production method of the double-vacuum-layer composite vacuum plate provided by the invention is simple in process, the defects of an existing insulation board and an existing vacuum insulated panel can be overcome, and the strength, heat insulation, sound insulation and fire resistance can be improved.

The invention relates to a tapered roller bearing with high strength and low friction torque, comprising an outer ring, an inner ring, a plurality of rollers and a cage, wherein the rollers are clampeThe invention relates to a tapered roller bearing with high strength and low friction torque, comprising an outer ring, an inner ring, a plurality of rollers and a cage, wherein the rollers are clamped between the outer ring and the inner ring and used for supporting and realizing relatively rotating; and the cage is used for guiding the rollers to move; a big rib of the inner ring is a convex curd between the outer ring and the inner ring and used for supporting and realizing relatively rotating; and the cage is used for guiding the rollers to move; a big rib of the inner ring is a convex curved rib; the root part width of the big rib of the inner ring is larger than 6.47 mm, and the axial depth of an oil groove is smaller than 0.5 mm; the raceway buses and the roller buses of the inner rved rib; the root part width of the big rib of the inner ring is larger than 6.47 mm, and the axial depth of an oil groove is smaller than 0.5 mm; the raceway buses and the roller buses of the inner ring and the outer ring are in a logarithm curve convexity shape; the number of the rollers is less than 16, the length of the rollers is smaller than 24 mm, and the convex diameter of a raceway is smaing and the outer ring are in a logarithm curve convexity shape; the number of the rollers is less than 16, the length of the rollers is smaller than 24 mm, and the convex diameter of a raceway is small; the sphere base surface diameter of the rollers is smaller than 136 mm, and the diameter of the rollers is larger than 21.671 mm. The invention has long service life, saves the energy and reducesll; the sphere base surface diameter of the rollers is smaller than 136 mm, and the diameter of the rollers is larger than 21.671 mm. The invention has long service life, saves the energy and reducesthe energy consumption.the energy consumption.