130results about How to "Improve air tightness" patented technology

A method of fabricating a microstructure having an inside cavity. The method includes depositing a first layer or a first stack of layers in a substantially closed geometric configuration on a first substrate. Then, performing an indent on the first layer or on the top layer of said first stack of layers. Then, depositing a second layer or a second stack of layers substantially with said substantially closed geometric configuration on a second substrate. Then, aligning and bonding said first substrate on said second substrate such that a microstructure having a cavity is formed according to said closed geometry configuration.

The invention discloses a vacuum glass sealing method which comprises the following steps: preparing a metal layer, which is bonded with a glass plate, on the surface of the glass plate by an ultrasonic welding technique; and carrying out hermetic seal on the edges of the two glass plates by a metal brazing technique, or carrying out hermetic welding on the metal layers of the two glass plates to be sealed so as to connect the metal seal sheets, thereby implementing hermetic seal on the edges of the two glass plates. The ultrasonic welding technique is utilized to arrange the metal layer on the surface of the glass plate, and the welding technique is utilized to carry out hermetic seal on the edges of the two glass plates on the basis of the metal layer, thereby providing a new technical way for manufacturing vacuum glass. The tempered vacuum glass manufactured by the method disclosed by the invention has the advantages of firm connection of the seal position, high air tightness, favorable thermal shock resistance and the like; and the seal structure formed by the metal seal sheets can well adapt to the temperature deformation of the inner and outer glass plates in the vacuum glass due to temperature difference, thereby providing technical guarantee for safe application of the vacuum glass.

The invention discloses a method for manufacturing a square-filament optical fiber panel. The method comprises the following steps: 1, sleeving a cladding pipe into a core material bar to form a bar and pipe combination, and drawing the bar and pipe combination into monofilaments with unfilled corners; 2, arranging the monofilaments in a primary multi-filament die with a square cross section, aligning the unfilled corners of every four monofilaments together to form a cavity for accommodating light absorbing filaments during arrangement, inserting the light absorbing filaments in the cavity to form a primary multi-filament bar; drawing the primary multi-filament bar to form primary multi-filaments; 3, arranging the primary multi-filaments in a secondary multi-filament die with a square cross section to form a secondary multi-filament bar; drawing the secondary multi-filament bar to form secondary multi-filaments; 4, cutting the secondary multi-filaments short and arranging the short secondary multi-filaments into an optical fiber panel blank; making the optical fiber panel blank into the square-filament optical fiber panel through subsequent processing. The optical fiber panel product is formed through the arrangement of the filaments in square units, the square unit filaments are arranged in the most tightly piled mode, and no clearances exist in the square unit filaments at all. The air tightness can be greatly improved, so that the service life of a low light lever imager is prolonged.

A terminal plate is formed with a wide portion and a narrow portion. The wide portion, to be insert-molded by a housing of a synthetic resin, is opened by an elongate blank hole having an inner peripheral surface parallel with a side shape thereof, thereby forming two divisional parts on the both sides thereof. The divisional part is given by a width s1 narrower than a width s2 of the narrow portion, wherein the total width (s1×2) of the two divisional parts is made equal to the width s2 of the narrow portion. Grooves can be formed on the main and back surfaces of the divisional parts.

The invention provides a fixture for abrasive flow polishing of a blisk. The fixture consists of an upper disc tray, a lower disk tray, an outer wheel hub sealing ring, an inner wheel hub sealing ring, front blade edge sealing gaskets and rear blade edge sealing gaskets, wherein the upper disc tray and the lower disk tray consist of inner and outer concentric rotating bodies, sealing gasket bases are fixed in the disc trays and are in one-to-one correspondence with blades, and the front blade edge sealing gaskets and the rear blade edge sealing gaskets are fixed in the sealing gasket bases; and the outer wheel hub sealing ring and the inner wheel hub sealing ring fill gaps between the upper and lower disk trays and inner and outer wheel hubs of the blisk to be polished. According to the invention, the flow of abrasive materials is correctly guided, the abrasive materials are prevented from damaging the front and rear edge profiles of the blades during an abrasive polishing process, the blisk is prevented from deforming due to excessive stress caused by the factor that upper and lower cylinders pushes a piston at high pressure to extrude the abrasive materials during a blisk polishing process, the air impermeability of the fixture is improved, and work environment pollution caused by abrasive material leakage and possible physical injury accidents are prevented.

Disclosed is an aluminium/resin composite which: exhibits extremely high interfacial adhesion strength and air tightness between an integrally-bonded, shaped aluminium article made from an aluminium alloy, and a molded resin article; retains the excellent adhesion strength and air tightness of the aluminium/resin bond surface in harsh environments such as those caused by temperature, humidity, dust, and corrosive materials; and is corrosion resistant, heat resistant, weather resistant, durable, and exhibits excellent peel strength on the aluminium/resin interfacial surface. Also disclosed is a manufacturing method for the aluminium/resin composite. The aluminium/resin composite contains a shaped aluminium article having undulations on the surface, and a molded resin article which is bonded to the shaped aluminium article when the resin is butted thereto. A plurality of concave sections are formed due to the undulations, and an aluminium coating film is formed on the outermost surface of the undulations. Fitting sections are formed on the molded resin article where the resin enters the concave sections and hardens. The components of the aluminium/resin composite which exhibits excellent weather resistance are engaged by the concave sections and the fitting sections.

The invention discloses a material special for a medicinal transfusion bag, which comprises polypropylene, polyethylene and styrene-ethylene/ butane-styrene block copolymer. Due to the adoption of the technical scheme, the transfusion bag has excellent air permeability and steam blocking performance and good chemical stability, and the material is suitable for manufacturing liquid medicinal products which need high-temperature disinfection and sterilization; the material has good transparency and ensures foreign matter detection during production and use; the material has good softness, drop resistance, good heat sealing performance and high temperature resistance, and can be sterilized at the temperature of 121 DEG C; because the material does not contain halogen, the material does not cause environmental pollution during treatment after the use; and meanwhile, the bag has good blocking performance, good chemical and biological inertness and good compatibility with medicaments, and can used for packing common liquid, enteral and parenteral nutrient liquid, dialysis liquid, flushing liquid, therapeutic large-volume injection and the like.

The present invention provides an electronic component which can seal with higher air tightness and can realize miniaturization. The electronic component of the invention comprises the following components: an insulating substrate (10); a device chip (20) which is equipped on the insulating substrate (10) with a reverse mode; a pattern (32) which is equipped on the insulating substrate (10) along the side surface of the device chip (20) with a mode that a clearance is provided between the upper surface of the pattern (32) and the lower surface of the device; and an SOG oxide film (30) which covers the side surface of the device chip (20) and the pattern (32) with a mode that the SOG oxide film is inserted into the clearance between the upper surface of the pattern (32) and the lower surface of the device chip (20) and a clearance (26) is formed between the upper surface of the insulating substrate (10) and the lower surface of the device chip (20).

The invention relates to a welding procedure between high-damp copper alloy and steel, belonging to the metal material welding field. The procedure adopts the method of argon tungsten-arc welding; a K-shaped or an X-shaped groove is arranged on the welding surface of the high-damp copper alloy and the steel, namely the K-shaped groove is arranged on the connecting surface of either the high-damp copper alloy or the structural steel, or the K-shaped groove is arranged on the connecting surfaces of both the high-damp copper alloy and the structural steel; firstly adopt nickel bare welding filter metal to perform surfacing welding on the structural steel to form a transition layer; and then adopt cupronickel welding wire to perform butt welding on the high-damp copper alloy to realized the connection between the steel and the high-damp copper alloy. The welding procedure has the advantages that the welding problem between the high-damp copper alloy and the steel can be solved with high efficiency and low cost; the mechanical property of the weld joint of the finished welding part is excellent; the invention can be applied on the power transmission system; under the work conditions of low torque and high rotational speed or high torque and low rotational speed, the welding procedure can meet the application requirements; and compared with the original simulating steel part, the noise reduction performance is good.

The invention discloses a manufacturing method for an ultraviolet LED device. The method comprises the steps of preparation of a ceramic substrate and a glass cover plate, assembling, melt sealing and the like. A metal layer is arranged at the joint of the ceramic substrate and the glass cover plate and then is molten in an electromagnetic induction heating or laser heating mode, thereby realizing low-temperature melt sealing of the metal layer, obtaining the fully inorganically packaged ultrasonic LED device, improving the airtightness, corrosion resistance and ultraviolet resistance of the device, and prolonging the service life of the device.

The invention relates to a standard cover group used for a battery or a capacitance, which includes a cover body and an electrode, furthermore, the electrode and the cover body are sealed and connected by glass insulation; the cover body comprises a cylindrical cover core and a broad shoulder which is coaxial with the cover core, the broad shoulder and an upper end surface of the cover core are the same whole, and a ring-shaped flange is arranged below the edge of the broad shoulder. The standard cover group which realizes the invention can be pressure-welded with various batteries or capacitances with different sizes by resistance welding to form an integral cover group, thus meeting the requirement that the cover plates of the batteries or capacitances with different specifications can be satisfied by using only one standard cove group; furthermore, as the standard cover group has comparatively large thickness, deformation and warpage phenomena can not be generated by high-temperature sintering, and as the cove plate needs not to go though high temperature, planeness can be kept during stamping, steam leakage of the cover group cannot be caused by the warpage during welding and sealing, thus the cover group has the advantages of higher strength and air tightness; as the diameter of the standard cover group is small, sintering fixtures can be universally used, furthermore, the standard cover group occupies small space, has high efficiency and low energy-consumption, and can effectively reduce the cost.

The invention discloses a foam basketball production method and a foam basketball thereof. The method includes the steps of producing an inner tube, producing a wrap yarn layer and producing an outer skin layer. The produced foam basketball comprises the inner spherical tube, the wrap yarn layer and the outer skin layer which are laminated in sequence from inside to outside, delaminating liquid is brushed on the outer surface of the inner tube, and the wrap yarn layer is connected with the outer surface, brushed with the delaminating liquid, of the inner tube in a wrapped manner. Air tightness, bounce and strength of the foam basketball are all higher than those of similar products.

The invention discloses a wafer-level package structure and package process applied to an acoustic surface wave filter. The wafer-level package structure comprises a filter chip substrate and a package wafer; a circle of gold film is plated on the periphery of a working face of the filter chip substrate, and a circle of gold film is respectively plated on the position, corresponding to each chip substrate gold film, of the package wafer; the filter chip and the package wafer are combined together through a gold-gold binding way; an external circuit wiring structure and a metal solder ball electrically connected with a PCB board are arranged on the surface, reverse to the chip working face, of the packaging wafer; a through hole is formed in the package wafer to enable the chip working facecircuit to electrically connect with the metal solder ball after passing through the through hole and the external circuit wiring structure in order. The package wafer is the glass material with thethermal expansion coefficient same or approximate to that of the chip substrate material. The package disclosed by the invention is more reliable, capable of improving the efficiency and easy to eliminate the thermal mismatch condition of the device.

The invention relates to a powder metallurgy flange and a preparation method thereof. The powder metallurgy flange comprises the following components in percentage by weight: 0.5-1.5% of copper, 0.3-0.5% of chromium, 0.3-0.5% of silicon, 0.5-0.8% of graphite, 0.3-0.8% of manganese, 0.8-1.0% of zinc stearate, 0.5-1.0% of ferrophosphorus powder, and the balance of iron. According to different needs, the components of the material are adjusted, so that the produced flange has high tensile strength, high gas tightness and a uniform organization structure, and can be extensively adaptive to various environments.

A resealing arrangement for a beverage container having a top with an aperture to discharge beverage, includes a main cap over the container top, having a threaded neck with an opening for discharging the beverage. A seal hermetically connected to the main cap, extends against the container to hermetically seal with the container. A locking sleeve is connected to the main cap for fixing the main cap to the beverage container with sufficient force to resist pressure from, and to maintain pressure in the beverage container. A secondary cap is threaded to the neck and an anti-rotation projection extending from the main cap can be used to resist co-rotation of the main and secondary caps.

The invention discloses a manufacturing technology of an LED bracket with good air-tightness. The manufacturing technology comprises the following steps of: (1) stamping, namely stamping and molding a metal bracket by a press machine and a mold in fit; (2) checking; (3) injection molding; (4) checking; (5) electroplating; (6) checking; (7) bending and cutting; (8) checking; (9) packaging; and (10) checking. The LED bracket is manufactured in a manner of electroplating after injection molding; and the metal bracket is coarse in surface after being stamped and molded and can be firmly combined with an insulator, so that the air-tightness of a product is ensured. Meanwhile, electroplating treatment is carried out after injection molding; and an electroplating material can carry out further sealing treatment on the combined edge of the insulator and the metal bracket, so that the air-tightness of the product is further improved. Furthermore, a clad layer is not polluted by an injection molding material, so that the usability of the product is effectively improved.

The present invention relates to a sliding window, which includes a windowsill that is fixed to a wall and is provided with at least one rail inside, a door roller structure that is in contact with the rail of the windowsill, and a sash provided with conversion means for operating the door roller structure. The door roller structure causes the sash to be pressed close toward and removed from the windowsill, thereby removing a gap between the sash and the windowsill. Accordingly, not only airtight, watertight, insulation, and soundproof performance can be improved, but also wind pressure resistance performance can be improved.

The invention discloses a peritoneal dialysis positioner for a nephrology department. The peritoneal dialysis positioner for the nephrology department mainly comprises an inserting tube, a sealing ring, a filling concave layer, a positioner sucker, an air discharging tube, an air feeding tube, an air flow controller and a surrounding waistband; the inserting tube is arranged on the lower side of the sealing ring; the sealing ring is arranged on the periphery of the outside of the filling concave layer; the filling concave layer is connected to the lower side of the positioning sucker; the positioning sucker is arranged between the air discharging tube and the air feeding tube; the air discharging tube is arranged on one side of the upper end of the positioning sucker; the air feeding tube is arranged on the other side of the upper end of the positioning sucker; the air flow controller is connected to the outer side of the positioning sucker; and the surrounding waistband is connected to the left side and the right side of the positioning sucker. The peritoneal dialysis positioner is provided with a sealing device, a process of mounting and positioning equipment is simplified, time and labor are saved, and fixing efficiency is improved.

The invention provides a vehicle handle device, a vehicle door assembly, a vehicle door control system and a vehicle. The vehicle handle device comprises a handle and a driving mechanism, wherein thehandle can move between the hidden location and the extending location, and a proximity sensor is arranged on the handle; the driving mechanism drives the handle to move to the extending location fromthe hidden location by responding to a first motivation signal; when the handle is located in the hidden location, the outer surface of the handle and the surface of the vehicle door are located in the same plane through observation from outside of the vehicle; and when the handle is located in the extending location and the proximity sensor is triggered, the vehicle handle device triggers an electric lock of the vehicle door to be unlocked. According to the embodiment of the invention, the vehicle handle device is hidden on the inner side of the vehicle door, so that a bulging or sunken partcannot be formed on the vehicle door, wind resistance of the whole vehicle can be reduced, and air tightness of the handle is improved.

A high fracture toughness, wear resistant V-ring seal with superior flexibility, leak tightness and longer operational life comprises an upper V-shaped recess (5), an inner wall (6), an exterior wall (7) and a V-shaped lower surface (9). Said seal is characterized in that an annular groove (8) whose bottom is an open arc is disposed on a bottom of the upper recess (5).

The invention discloses a high-pressure respirator fully-wrapped composite gas cylinder with a carbon fiber reinforced aluminum inner container for fire fighting. The high-pressure respirator fully-wrapped composite gas cylinder comprises the aluminum inner container, wherein the aluminum inner container comprises an aluminum inner container bottle bottom, an aluminum inner container barrel body, an aluminum inner container bottle shoulder and an aluminum inner container bottleneck; a carbon fiber fully-wrapped layer on the aluminum inner container barrel body is formed by alternatively winding a longitudinal carbon fiber wrapping layer and an annular carbon fiber wrapping layer according to a stacking sequence; an anti-impact glass fiber protective layer is further wrapped on the surface of the carbon fiber fully-wrapped layer; and a layer of polyurethane lacquer is coated on the outer surface of the aluminum inner container as an electrocorrosion resistant coating. The high-pressure respirator fully-wrapped composite gas cylinder meets reasonable stress field distribution and is ensured to be capable of bearing maximal bursting pressure in case of using least fibers, so that the bursting position starts from the aluminum inner container barrel body of the composite gas cylinder, and therefore, the composite gas cylinder is guaranteed to have lasting and good airtight performances, and optimal safety performances.

The invention discloses a rubber lining material of a corrosion-resistant rubber lining butterfly valve, the rubber lining material is formed by mixing rubber lining materials A and rubber lining materials B, wherein the two parts respectively comprise raw materials in part by weight as follows: the rubber lining materials A: 85-95 of nitrile rubber 3305, 0.3-0.5 of sulphur, 4-6 of magnesium oxide, 3-4 stearic acid, 2 of antioxidant, 1-2 of 2,5-Di-tert-butylhydroquinone (DTBHQ), 1-2 of antiager RD, 1-2 of antiager 4010 NA, 3-4 of paraffin, 22-25 of quick extrusion black carbon N660, 62-65 of high abrasion furnace black N330, 18-22 of dioctyl phthalate, 25-35 of calcium carbonate, 3-4 of accelerant M, 1-2 of accelerant tetramethylthiuram disulfide (TMTD) and 1-2 accelerant Tetraethylthiuram disulfide (TETD); and the rubber lining materials B: 82-87 of chloropropylene epoxide homopolymer, 12-18 of epichlorohydrin copolymer, 1-2 of zinc stearate, 1-3 of antiager RD, 0.4-0.6 of gum easy T-78, 1-2 of Rhein paraffin, 45-55 of quick extrusion black carbon, 10-14 of kieselguhr, 5-8 of dioctyl phthalate, 4-6 of lead tetroxide, 0.8 of vulcanizer TCY and 1-2 of accelerant Na-22. The rubber lining material has good comprehensive performance, the rubber lining butterfly valve which is obtained after vulcanization has the characteristics of good air tightness, weather resistance, low temperature resistance, oil resistance and the like, and simultaneously has low material cost.

The invention relates to an electromagnetic valve which comprises a first valve body section, a second valve body section and an air inflation section. Multiple airflow channels communicating mutuallyare arranged in the first valve body section, the second valve body section and the air inflation section; the first valve body section is provided with an exhaust part communicating with the corresponding airflow channel and a first movable valve element located in the airflow channel; the second valve body section is provided with an air inlet part communicating with the corresponding airflow channel and a second movable valve element located in the airflow channel; and the air inflation section is used for connecting with an object to be inflated. Through the position changes of the firstmovable valve element and the second movable valve element in the airflow channels, an air inflation, deflation and air pressure maintenance state is formed for the object to be inflated.

A glue stick container provided with: a container body having a glue-filling space in which glue is filled as well as a non-circular glue outlet opening on the tip for discharging the glue to the outside; and an open-close mechanism, which can selectively assume either a closed state in which the communication of the glue-filling space of the container body with the outside is blocked in an airtight manner or an open state in which the glue can be discharged to the outside. The open-close mechanism has a cap attachment tube, which is provided on the container body and has a circular engaging section on the outside, and a cap, which is detachably fitted on the outside of the engaging section of the cap attachment tube. The cap attachment tube is formed using a mold and at least a portion of the inner circumferential surface thereof faces the container body across a gap that is open in the direction of the tip.

The invention provides an anti-abrasion high-lubrication additive composite of lubricating oil or engine oil. The anti-abrasion high-lubrication additive composite comprises, in every 100g, 6-10g of nano zirconia ceramic powder, 10-20g of alkyl group or dimethyl benzene solvent, 3-6g of active polyamide wax rheological anti-settling agent and 55-75g of lubricating oil or engine oil. In actual use, mixing ratio of additive to the engine oil is the additive 50g: the lubricating oil or the engine oil 3500g (4 liters). The anti-abrasion high-lubrication additive composite of the lubricating oil or the engine oil is characterized in that the special active polyamide wax rheological anti-settling agent is utilized so enable the nano zirconia ceramic powder to be coupled in the lubricating oil or the engine oil. The anti-abrasion high-lubrication additive composite of the lubricating oil or the engine oil is not easy to precipitate and enables the nano zirconia ceramic powder to be distributed in engines, speed changing boxes, gear cases or general machines rapidly.

Provided is an envelope which includes: a first substrate; a second substrate opposed to the first substrate; a frame interposed between the first substrate and the second substrate; and a low melting point metal for bonding the first substrate and the frame to each other. In particular, in such a configuration, the substrate or the frame has a first region and a second region which are brought into contact with the low melting point metal, and in the first region, a material capable of higher maintaining airtightness with the low melting point metal than the second region is in contact with the low melting point metal, while in the second region, a material having a stronger binding power on the low melting point metal than the first region is in contact with the low melting point metal.

The invention provides a quaternary alloy sealing material, which comprises the components with mass percentages as follows: 65 to 73 percent of Ag, 25 to 30 percent of Cu, 0.5 to 5 percent of Ge and 0.1 to 1.0 percent of Co. The specific preparation manner is as follows: (1) Ag, Cu, Ge and Co are put into a vacuum melting furnace in proportion, the furnace is internally vacuumized to pressure of 0.4 to 0.04Pa and then heated to a temperature of 1200 to 1400 DEG C; (2), after Ag, Cu, Ge and Co are completely melted in the vacuum melting furnace to form melted liquid, the temperature is reduced to 1000 to 1100 DEG C, the melted liquid is poured into a shaping die, and after the temperature is reduced to room temperature, the shaping mould is taken out of the vacuum melting furnace and a cast ingot for processing the sealing material is obtained; and (3) the cast ingot is calendered by using a rolling mill, coiled and put into a vacuum heat treatment furnace after the thickness reaches 1 to 2mm, heated to a temperature of 600 to 700 DEG C, thermally insulated for 2 to 5 hours, then cooled to the normal temperature, and is calendered by the rolling mill to the thickness of 0.3 to i.2mm after being taken out, and the quaternary alloy sealing material can be obtained after the cast ingot is trimmed and punched into a needed shape. The quaternary alloy sealing material has the advantages of high cleanliness, good anti-corrosion performance and good anti-oxidation performance.

A solar cell assembly comprises a light transmission component, a backboard or another light transmission component and solar cells, wherein the light transmission component is arranged at the first side, the backboard or the other light transmission component is arranged at the second side opposite to the first side, and the solar cells are packaged between the light transmission component at the first side and the backboard or the other light transmission component at the second side via a packaging material. The solar cell assembly further comprises an edge part, wherein the edge part surrounds the packaging material, is clamped between the light transmission component at the first side and the backboard or the other light transmission component at the second side, and comprises a reflective material whose reflectivity is greater than 60%. The airtightness of the solar cell assembly can be effectively improved, and the photoelectric conversion efficiency of the solar cell assembly is improved.

The invention belongs to the technical field of medical instruments, in particular to an anesthesia mask. Two fixing plates with adjustable cross included angles are arranged on the mask, by adjustingthe cross angles of the two fixing plates and the position relative to a positioning circular plate, the contact position between binding bands and a patient' head is adjusted, so that the wound on the head of the patient can be avoided when necessary, and unnecessary pain to the patient is avoided; screw rods are used for adjusting the horizontal height of a sponge inside an airbag to produce multiple curves for the bottom of the airbag, and personalized curve adjustment can be given according to the concave-convex characteristics of a patient's face, and thus the airbag and the patient's face are more attached, so that the air tightness in the use of the mask is greatly increased, and the waste of anesthetic and the occurrence of anoxia of the patient are avoided.

A connector comprising a terminal that is connected to an electric wire, and a resin housing that houses and holds the terminal, wherein one groove or a plurality of grooves, each of which includes a directional component perpendicular to the lengthwise direction of the electric wire and has protrusions on the surface thereof, extends across a region of a portion of the surface of the terminal, and the terminal is embedded and secured within the resin that constitutes the housing in this portion including the region across which the groove extends. By employing this type of structure, the number of components can be reduced, and excellent bonding and airtightness is achieved between the terminal and the housing.