31results about How to "Long sealing time" patented technology

The invention relates to a horizontal transverse sealing station (10a-b), in particular for a horizontal tubular bag machine (12a-b), for producing transverse sealing seams (14a-b) on at least one film tube (18a-b) transported in a continuous, at least essentially horizontal transport direction (16a-b), comprising a transverse sealing station base (20a-b) fixedly connected to a packing machine (22a-b), a transverse sealing unit (24a-b), and at least one sealing jaw pair (28a-b) movably mounted on the transverse sealing unit (24a-b) and formed by two sealing jaws (26a-b), the sealing surfaces (30a-b) of which come closer to each other during a sealing process in a sealing movement (32a-b), which relative to the transverse sealing unit (24a-b) is provided with at least one movement component (34a-b) in the transport direction (16a-b), in order to seal material layers (36a-b) of the film tube (18a-b) between the sealing surfaces (30a-b) by way of heating and / or applying pressure, and to remove again at the end of the sealing process. According to the invention the transverse sealing unit (24a-b) is driveably mounted on the transverse sealing station base (20a-b) in a displacement movement (38a-b) that is at least substantially parallel to the transport direction (16a-b).

The invention discloses a purple bronze aluminum alloy coloring system. The purple bronze aluminum alloy coloring system comprises a sulfuric acid tank used for anodizing an alloy profile, a coloring tank for electrolytically coloring the alloy profile, a hole sealing tank for sealing holes of the alloy profile, a rinsing tank for rinsing residual tank liquor of a hole sealing process, an electrophoresis tank for electrophoresis of the alloy profile and a curing unit for curing the alloy profile, and the sulfuric acid tank, the coloring tank, the hole sealing tank, the rinsing tank, the electrophoresis tank and the curing unit are sequentially connected. By means of the purple bronze aluminum alloy coloring system, the yield of purple bronze electrophoresis alloy profile products can be greatly increased.

The invention provides a venous retention needle suite with a hirudin anticoagulation tube sealing device, which comprises a casing, a transparent tee joint and a transfusion joint, wherein the casing is guided by a puncture needle and inserted into a vein; the transparent tee joint is connected to a built-in isolated sealing plug at the rear end of the casing; the transfusion joint is connected with a transfusion tube or a blood taking tube; the transparent tee joint is connected with the transfusion joint by an extension tube; the transfusion joint is sealed by a sealed end cap; one end of the transparent tee joint connected with the extension tube forms a double-cavity joint; one end of the double-cavity joint is connected with the extension tube, and the other end of the double-cavityjoint is connected with a tube sealing device; and the tube sealing device comprises a liquid storing bag in a support and a roller which is arranged between the two side walls of the support and used for pushing the liquid in the liquid storing bag forwards. The venous retention needle suite with the hirudin anticoagulation tube sealing device can ensure that a tubular cavity of the retention needle is filled with the tube sealing liquid. The tube sealing liquid in the tube sealing device is hirudin diluent which has good anticoagulation effect and does not influence any index of serum test in blood.

The invention discloses an anti-leakage natural gas shut-off device and its use method, and relates to a natural gas shut-off device, which specifically includes a transport vehicle, a vehicle board and a natural gas storage tank. During the natural gas leakage process, when the natural gas leaks, it is discharged from the gas outlet pipe. The gas sensor recognizes that there is a natural gas leak, and the motor is first turned on by the controller. After a period of time, the meshing effect of the gear and the rack rod, and the sealing is good, and the safety is increased; the outlet pipe is blocked by the way of sealing oil flow, when In the event of leakage, the sealing oil can be added automatically, thereby prolonging the sealing time, reducing the excessive addition of sealing oil, and reducing the waste of resources; the vibration-absorbing bracket can buffer the shaking of the natural gas storage tank during transportation, and improve the stability of the natural gas storage tank during transportation. Increased natural gas storage tank stability reduces the likelihood of valve misalignment, thereby preventing the increased likelihood of leaks.

The invention discloses a core sealing device and a sealing method thereof. The core sealing device comprises an outer barrel, a lead inner barrel and a plurality of lead inner barrel supports. One end of the outer barrel is provided with a fixed end cover in a sealing mode, and the other end of the outer barrel is provided with a movable end cover in a sealing mode. A plurality of pressure measurement holes are formed in the barrel wall, close to the movable end cover, of the outer barrel along the circumferential direction. The upper end of the outer barrel is provided with an air hole, and the lower end of the outer barrel is provided with a confining pressure hole. The lead inner barrel is arranged inside the outer barrel in a penetrating mode. A plurality of pressure measurement sealing holes are formed in the lead inner barrel. The pressure measurement sealing holes and the pressure measurement holes are communicated. One end of the lead inner barrel is provided with a sealing block in a sealing mode, and the other end of the lead inner barrel is connected with the movable end cover. The plurality of lead inner barrel supports are arranged at equal intervals between the lead inner barrel and the outer barrel. The core sealing device and the sealing method thereof can effectively guarantee sealing performance of core groups under a high-temperature and high-pressure environment, and improve experimental success rates.

The invention discloses a method for packaging ultraviolet LEDs, which includes the following steps: (11), a crystal-bonding step, fixing an ultraviolet LED chip in a crystal-bonding area in a cavity of a substrate; (12), a wire bonding step, using wires to The ultraviolet LED chip is connected to the relevant circuit terminal; (13), the plasma coating step, the substrate fixed with the ultraviolet LED chip is placed in the spraying room, and the spraying room is pumped into a low-pressure vacuum state, and the plasma is applied to the surface of the ultraviolet LED chip and the substrate cavity. Coating; (14), the step of sealing the cover plate, sealing the cover plate transparent to ultraviolet light on the mouth of the substrate cavity. The ultraviolet LED packaging method of the present invention can add another layer of protective film to the ultraviolet LED chip, which can delay the aging of the cover plate and prolong the sealing time of the cover plate. The mouth of the substrate cavity is sealed by a UV-transmissive cover plate, which avoids the problem of poor UV resistance of epoxy resin or silica gel and low light extraction efficiency.

The invention discloses an aluminum alloy copper salt coloring electrophoresis process. The process comprises the following steps: (1) sulfuric acid groove liquid is prepared; and an alloy profile to be colored is mounted on a lifting frame; (2) the alloy profile is put in the groove liquid for anodically oxidized to generate a layer of oxide film with a film hole; (3) the anodically oxidized alloy profile is put in a copper salt electrolytic coloring groove for electrolytic coloring; (4) the colored alloy profile is sealed; (5) the residual groove liquid in the hole sealing process is washed by water; (6) the electrophoresis is performed for the alloy profile washed by the water; and (7) the alloy profile is cured after electrophoresis. The pH value of the hole sealing groove liquid is higher; the hole sealing distance is longer; a half hole sealing process is adjusted to a near all hole sealing process for preventing dissolving of copper; and the alloy profile is more stable after coloring, and is higher in corrosion resistance.

A multipoint sealing device for the auxiliary high-pressure water-jet of a mining equipment cutting mechanism, comprising a water-conducting casing (7-1) and a water-conducting sleeve (7-4); the water-conducting sleeve (7-4) and the water-conducting casing (7-1) are sequentially sleeved between the cutting shaft (1) and cutting tank (4) of the mining equipment cutting mechanism; a water-inlet channel (7-2) is provided radially through the water-conducting casing (7-1), the water-conducting sleeve (7-4) and the cutting shaft (1); the water-inlet channel (7-2) respectively communicates with the water inlet of the cutting tank (4) and the main flow channel (1-1) of the cutting shaft (1); the two sides of the water-inlet channel (7-2) are respectively provided with a first O-shape seal ring (7-3), a toothed combination seal (7-6) and a second O-shape seal ring (7-8); the water-conducting casing (7-1) is provided with a drainage groove (7-7) thereon; and the cutting tank (4) is provided with a water leakage channel (7-9) thereon in communication with the drainage groove (7-7). The multipoint sealing device solves the sealing problem of the auxiliary high-pressure water-jet of the mining equipment cutting mechanism, effectively sealing the high-pressure water having a pressure of less than 50 MPa, providing a long-lasting seal and good sealing effect, and improving the auxiliary cutting efficiency of the high-pressure water-jet.

The invention discloses a large-flow floating ball floor drain, which comprises a floor funnel, a floor drain cover, a water retaining pipe, a water guide pipe and an outer casing, a floor drain panel is arranged outside the edge of the upper end of the floor funnel, the upper and lower ends of the water retaining pipe are sealed, and the water retaining pipe is worn on the top At the bottom of the floor funnel, there is a water inlet on the upper end of the water retaining pipe. There is a gap between the upper end of the water retaining pipe and the floor drain cover. The gap between the water retaining pipe and the floor funnel forms an upper water seal groove. There is an overflow channel between the water guide pipe and the water retaining pipe, and the gap between the water guide pipe and the water retaining pipe forms an overflow tank. The upper part of the water guide pipe is provided with a water collecting bucket, and a floating ball is arranged in the water collecting bucket, which is located on the side of the overflow tank. The aqueduct is provided with an overflow port, the outer casing is sleeved outside the water retaining pipe, the lower end of the outer casing is sealed, and the lower side of the outer casing is provided with drainage outlets at intervals along the circumferential direction, and the gap between the outer casing and the aqueduct located below the drainage outlet Form the lower water seal groove. The invention has large drainage volume, fast drainage speed, good sealing effect and can effectively prevent backwater.

The invention provides a slag removal device for a chemical production boiler, which relates to the technical field of slag removal devices, and solves the problem that the slag falls into the collection box due to the slag falling into the collection box after being scraped into the collection box. Falling will easily lead to the spread of dust, which will affect the health of the operator. A slag cleaning device for a chemical production boiler includes a collecting box, a cleaning part and a dust suction part; the collecting box is placed on the ground. Through the setting of the slot, there is a slot on the collection box, and the head end of the baffle is plugged into the slot, and the slot is an inclined groove structure, so that on the one hand, the cooperation between the baffle and the slot can realize The sealing of the collection box prevents the dust from spreading due to the slag falling in the collection box; on the other hand, the inclined slot prevents the slag from remaining in the slot, which leads to the sealing of the baffle and the slot Not tight.

The invention provides a special compensator for a maintenance-free pipe rack system. The compensator is located on a compensation mechanism mounting frame at least in the length direction of a pipeline; the compensation mechanism mounting frame is mounted on the ground; two ends of the compensator are respectively connected with an upstream pipe body and a downstream pipe body. The compensator is characterized by comprising an inner movable sleeve, an outer sleeve and an end pipe; the end part of the inner movable sleeve is fixed at the lower middle part in the outer sleeve; the end part of the end pipe is fixedly fitted to the inner wall of the top end of the outer sleeve, thus forming a three-layer sleeve structure. The special compensator for the maintenance-free pipe rack system has the outstanding characteristics of no thrust, large compensation distance, low operation cost and the like, and can meet the urban heating requirement.