17 results about "Air tightness" patented technology

The invention discloses a manufacturing method of an implantable artificial retina ceramic packaging body. The method comprises the following steps: 1, providing a ceramic substrate with at least one through hole; 2, filling the through hole with a conductive slurry with biological compatibility, and sintering both the conductive slurry and the ceramic substrate; 3, forming conductive welding discs with biological compatibility on the upper surface and the lower surface of the conductive slurry exposed outside the through hole after sintering in the second step; 4, arranging a metal ring with biological compatibility on the ceramic substrate, wherein the metal ring surrounds all the conducive welding discs disposed at the same side of the ceramic substrate; and 5, arranging a metal cover with biological compatibility on the metal ring to form an enclosed space accommodating a circuit board. According to the invention, the packaging body manufactured by use of the method is high in airtightness, prevents a human body from damage caused by penetration of incompatible substances in the packaging body into a body fluid and is good in biological compatibility. The difficulty in a manufacturing process is quite low, and the method is easier to promote.

The invention discloses a water tightness test device and belongs to the field of test devices. The water tightness test device comprises a watertight storage tank housing, a loading oil cylinder used for providing a loading force, a pulley, a mounting seat used for mounting a tested winch and the loading oil cylinder, and a closed connecting rope, wherein one end of the closed connecting rope is sleeved with the pulley; the pulley is mounted at the telescopic end of the loading oil cylinder; the loading oil cylinder is mounted on the mounting seat; the mounting seat is arranged on the bottom surface in the watertight storage tank housing; a water source inlet is formed in the watertight storage tank housing; the watertight storage tank housing comprises an upper half watertight storage tank and a lower half watertight storage tank which are hermetically connected; a connector flange is arranged at the bottom of the lower half watertight storage tank; a hydraulic pipeline of a hydraulic pump station penetrates through the connector flange to be connected with the loading oil cylinder. According to the test device, a pressure is provided by the loading oil cylinder and transmitted to a winding barrel through the pulley and the closed connecting rope so as to test the water tightness of the tested winch in positive and negative directions and at different rotating speeds.

The invention relates to an investment casting mould of a high-temperature alloy bending pipe. The investment casting mould comprises a bending pipe shell which is vertically placed, wherein the two pipe mouth ends of the bending pipe shell are horizontally arranged downwards and provided with annular runners, annular sprues with narrow clearances are formed in the annular runners and communicated with a bending pipe forming cavity of the bending pipe shell, the annular runners are communicated with vertical runners through non-linear runners which are horizontally arranged, and a spherical cap mouth communicated with the bending pipe forming cavity of the bending pipe shell is formed in the upper part of the bending pipe shell. By adopting the matching between the non-linear runners which are horizontally arranged and the annular runners having the annular sprues with narrow clearances for completing the conveying and casting of molten steel from the vertical runners to the bending pipe shell, the investment casting mould is simple in structure and convenient to cast, and can be used for effectively solving the problems that the surface quality is poor, the air tightness is poor and the groove part is loose, and improving the casting quality.

The invention discloses an air tightness detection device and an air tightness detection method. The air tightness detection device provides special equipment for detecting the air tightness of a battery pack PACK upper cover, a workpiece sealing mold is arranged to form a sealable cavity with the battery pack PACK upper cover, and the position precision of the workpiece sealing mold is ensured through a positioning structure. An edge sealing mechanism and an anti-deformation mechanism are combined to guarantee the sealing performance and prevent the battery pack PACK upper cover from deforming during detection, so that reliable conditions are created for airtightness detection, airtightness detection of the battery pack PACK upper cover can be effectively carried out, and a basic guarantee is provided for improving the airtightness of the battery pack.

The invention relates to an aluminum-plastic compositedoor and window section bar, whichcomprises a polyvinyl chloride (PVC) section bar and an aluminum alloy thin section bar, wherein the aluminum alloy thin section bar is arranged on the outdoor side of the PVC section bar; the upper part of the PVC section bar is providedwith a slope facing the indoor side, the middle of the PVC section bar is providedwith a vertical surface, and the bottom of the PVC section bar is providedwith a raised line; the aluminum alloy thin section bar consists of an upper reverse enveloping part, a middle convex part and a lower reverse enveloping part; a main body part of the upper reverse enveloping part is fitted with the slope; a first hook is arranged on the end part of the upper reverse enveloping part and is fastened to the inside end of the slope; a cavity is formed between the middle convex part and the vertical surface; a main body part of the lower reverse enveloping part is fitted with the lower end of the vertical surface; and a second hook is arranged on the lower reverse enveloping part and is fastened to the inside face of the raised line. The aluminum-plastic compositedoor and window section barhas the beneficial effect that the air tightness and water tightness of doors and windows are improved; and the aluminum alloy on the outer surface is diversified in decorative color and style and can adapt to buildings with variousfacades.

The invention discloses a plastic welding device and a laser welding method thereof. The plastic welding device comprises a welding device. A to-be-welded material comprises an upper layer material body made of a transmitting material, a lower layer material body made of a non-transparent material and adhesive tape located between the upper layer material body and the lower layer material body. The adhesive tape is located at a to-be-welded position of the lower layer material body, and the adhesive tape is connected with the upper layer material body and the lower layer material body. According to the plastic welding device and the laser welding method thereof, the hot-melting adhesive tape is added into the position between the to-be-welded plastics and heating and melting are conductedby using laser, and therefore thermosetting plastics can be welded together; and at the same time, the product waterproofness and the airtightness can be effectively improved through adhesive tape connection, the product heat affected zone can further be effectively narrowed through laser local heating, and the situation that other positions of a product are affected by the high temperature is avoided.

Disclosed is a helium leakage detection device and method for a double-layer pipe with an interlayer. In a helium leakage detection tool for a double-layer pipe, an inner pipe is sleeved with an outerpipe, the inner pipe is connected with the first end of a sealing flange box in a sealed mode through a first sealing piece, the outer pipe is connected with the second end of the sealing flange boxthrough a second sealing piece, and the diameter of the first end is smaller than that of the second end; one end of the inner pipe is blocked by a first blocking plate, and the other end of the innerpipe is blocked by a second blocking plate; a helium introducing hole is formed in the first blocking plate; an inflation cover is arranged outside the outer pipe, and a helium introducing hole is formed in the inflation cover. The detection device is simple in structure, convenient to disassemble and assemble, capable of achieving air tightness testing of the inner layer and the interlayer of the double-layer pipe, high in leakage detection precision, high in detection efficiency, low in cost, capable of achieving overall testing and capable of meeting the leakage detection requirement of the double-layer pipe with the interlayer.

Method of producing a gas-tight solid electrolyte layer for a high-temperature fuel cell, wherein a layer is produced from a metal oxide material and metal particles are incorporated in the layer during production of the layer, the metal particles being oxidizable, and wherein the metal particles are subsequently oxidized.

The invention discloses plastic packaging box air tightness detection equipment for food processing. The equipment comprises a water tank, the upper surface of the water tank is fixedly connected with a sliding groove frame, two first sliding blocks are slidably connected in the sliding groove frame, and the opposite surfaces of the two first sliding blocks are connected with extrusion mechanisms for extruding a packaging box; third connecting rods are hinged to the side faces of the two first sliding blocks; first vertical rods are hinged to the ends, away from the first sliding blocks, of the two third connecting rods; a first transverse rod is fixedly connected between the tops of the two first vertical rods; a mounting rod is fixedly connected to the middle position of the lower surface of the first transverse rod; the lower surface of the mounting rod is fixedly connected with a pressing plate; and the two sides of the water tank are connected with driving devices used for driving the third connecting rods to swing. The equipment has the advantages of high precision and high efficiency of checking the air tightness of the packaging box.

The invention discloses an air conduit for an automobile refueling pipe. The air conduit for the automobile refueling pipe comprises a carbon tank aeration steel pipe for connecting the refueling pipewith a carbon tank, wherein the carbon tank aeration steel pipe is of a continuous integrated structure, first shrinkage openings are manufactured in two ends of the carbon tank aeration steel pipe,first limiting rings are formed at the roots of the first shrinkage openings, first concave arcs are manufactured in the heads of the first shrinkage openings, an aeration steel pipe used for connecting an oil tank with an ash filter is arranged beside the carbon tank aeration steel pipe and along the trend of the carbon tank aeration steel pipe, second shrinkage openings are manufactured in two ends of the aeration steel pipe, second limiting rings are formed at the roots of the second shrinkage openings, second concave arcs are manufactured in the heads of the second shrinkage openings, anda first fixed support and a second fixed support are fixed on the carbon tank aeration steel pipe and the aeration steel pipe in a welding mode. A manufacture method of the air conduit for the automobile refueling pipe includes the steps: first manufacturing the carbon tank aeration steel pipe and the aeration steel pipe, welding the first fixed support and the second fixed support after placing the carbon tank aeration steel pipe and the aeration steel pipe in a parallel mode, performing washing and spraying after completing gas tightness inspection, and then warehousing the air conduit. Theair conduit for the automobile refueling pipe is simple in processing method and low in manufacture cost.

The invention relates to a manned test device for people, fishes and Azolla imbircata and a working method. The device comprises a cabin body which is composed of a front side plate, a rear side plate, a left side plate, a right side plate and a ceiling, wherein each side plate of the cabin body is assembled by assembling color steel plates separately, each color steel plate has film attached to double sides, and the lower end of each side plate of the cabin body is sleeved by slot aluminum which is connected with the foundation; the ceiling is composed of two inclined plates, an angle betweenthe two inclined plates is an obtuse angle, and the inclined plates are obtained by assembling colored steel corrugated sheets; a hung ceiling is arranged below the ceiling and in the cabin body, thehung ceiling is composed of two second inclined plates, and an angle between the two second inclined plates is an obtuse angle. The device not only has a simple mechanism, but also can be conveniently applied to ground simulation researches, and meanwhile an air tightness test method is simple and convenient.

The invention relates to metal-welded planar vacuum glass with sealing strips, sealing groove and a mounting hole. The glass comprises upper glass and lower glass, and is characterized in comprising the mounting hole. The upper glass and the lower glass are planar glass. Sealing strips are provided on the periphery of the upper glass and on the periphery of the mounting hole. Sealing strips and sealing grooves are provided on the periphery of the lower glass and on the periphery of the mounting hole. The peripheries of the upper and lower glass are automatically welded together by using a metal solder in a vacuum furnace. The mounting hole is also automatically sealed by using a metal solder. A sealed vacuum layer is formed between the upper glass and the lower glass. Supporters arranged in a lattice pattern are provided in the vacuum layer. The vacuum glass and the preparation method thereof have simple process. The prepared vacuum glass and tempered vacuum glass are beneficial for mounting and application. Air-tightness of vacuum glass can be effectively ensured. Strength, thermal insulation performance and sound insulation performance of the glass can be enhanced.