252results about How to "Ensure tightness" patented technology

An electroless plating layer with strong adhesion is optionally formed only on a portion to be a circuit, and other non-circuit portions are not roughened. A laser beam (2) with a wavelength of 405-1064nm is optionally irradiated onto the portion to be a circuit (11) of a synthetic resin substrate (1), and an ionic catalyst of palladium is caused to be adsorbed and then reduced to metallic palladium by a reducing agent. Subsequently, an electroless plating layer (3) is formed on the portion to be a circuit (11). Since the portion to be a circuit (11) is surface modified and roughened, the ionic catalyst firmly attaches, and the electroless plating layer (3) strongly adheres. The ionic catalyst does not adsorb onto the non-circuit portions (12) not irradiated by the laser beam (2), and thus the electroless plating layer (3) is not formed thereon.

A cooking device, in particular a baking oven, includes a cooking chamber having cooking chamber walls and also a fan opening into the cooking chamber. This fan opening is provided on a fan plate fitted in front of a cooking chamber wall, an antenna being provided for wireless signal transmission with a measuring arrangement which is located in the cooking chamber and has a transceiving antenna. The antenna is arranged between the fan plate and cooking chamber wall and is thus covered or inwardly protected.

A bipolar lithium-ion electrochemical battery having increased capacity.

The subject matter of the invention is an inverter including a casing (1), said casing (1) including at least two casing chambers (2, 3) that are each closable through a separate cover (2a, 3a).

A connecting arrangement for coolant lines includes a first coupling piece, connected seal-tight to a first line endpiece, and a second coupling piece, connected seal-tight to a second line endpiece. The coupling pieces each have radially extending sealing surfaces on the side facing toward the other coupling piece. A sealing ring is mounted between the sealing surfaces. The coupling pieces are joined to each other via a screw arranged laterally offset from the sealing surfaces so the line endpieces connect to each other via respective bores in the coupling pieces. A form body between the coupling pieces arranged at a spacing from the screw on the side facing away from the sealing surfaces is configured so a lever action occurs when the coupling pieces are joined to each other leading to a uniform pressing together of the sealing ring between the sealing surfaces of the coupling pieces.

The invention discloses a method for putting in and taking out a coiled tubing being used as a production tubing string. The method for putting in the coiled tubing being used as a production tubing string comprises steps of mounting a well head blowout preventer system, an injection head and the coiled tubing above a tubing head four-way joint and a main valve, mounting a tool string to the lower end of the coiled tubing, and putting into a designed depth; cutting the coiled tubing off by a shear ram of a first blowout preventer; sequentially mounting a hanging connector and a tubing hanger to the upper end of the cut low-half coiled tubing, stretching the cut up-half coiled tubing out of a blowout preventing tubing, and connecting the cut up-half coiled tubing with a hydraulic retractable feeding/recycling tool; putting the tubing hanger in the tubing head four-way joint; and fixing the tubing hanger of the coiled tubing into the tubing head four-way joint. According to the method for putting in and taking out the coiled tubing being used as the production tubing string, the coiled tubing replaces a conventional tubing and is directly used a production tubing string, a standard gas production tree well head is achieved after construction, and the sealing effect of the well head can be ensured at the same time.

A gasket device for a turbomachine bearing, configured to separate an oil enclosure and an air enclosure from the turbomachine, including a segmenting gasket for providing most of tightness of the device and a supporting jacket for holding the segmented gasket. The supporting jacket includes a first groove accommodating a first elastic seal for centering the supporting jacket. The supporting jacket includes a second groove accommodating a second elastic seal for centering the supporting jacket, or aligning the axis of the supporting jacket with the axis of the rotor.

A microfluidic device for transporting a fluid, in particular a micropump or microvalve. The device has films, which lie against each other at film surfaces facing each other and are connected to each other in such a way that a transport channel to be formed between the films is defined, Deflecting apparatuses for forming the transport channel by jointly deflecting the films lie against each other in a direction perpendicular to the film surfaces. A deflecting surface region of the rear film in the deflection direction lies within the deflecting surface region of the front film in the deflection direction defined by the connection between the films.

An air spring (1) for commercial vehicles has a first connecting part (2), in particular in the form of a cover, a second connecting part (3) in the form of a roll-off piston, a rolling lobe flexible member (4) made from elastomeric material, wherein a first end (4a) thereof can be fastened seal tight to the first part (2) by a first fastening device (5a) and a second end (4b) of the flexible member (4) can be fastened seal tight to the roll-off piston (3) by a second fastening device (5b). The roll-off piston (3) is made of plastic and the second fastening device (5b) is not made from metal, and/or the first part (2) is made of plastic and the first fastening device (5a) is not made from metal.

According to the invention, a pouring spout for mounting on a container's neck can be configured as a spout placed in the container's neck, which spout goes on the inside of the neck so that possible drops of liquid will be collected inside the neck. Drops of liquid running on the outside of the container are hereby avoided and at the same time it is achieved that the container can pour in all directions since the edge of the pouring spout extends uniformly around the container's neck.

The invention relates to a restoring technology without digging inside lining pipe. It adopts rubber as lining material and submits the making method of rubber lining pipe, fitting method and construction process. The method can be applied to the modification of the gray cast iron pipeline.

Tire comprising an inner liner, at least one carcass ply and a strain sensor, the strain sensor being placed between the carcass ply and the inner liner.

Provided is a photosensitive electrically conductive paste containing silver powder, organic binder, photopolymerizable monomer, photopolymerization initiator and organic solvent. The silver powder, having a primary particle diameter of not more than 1.0 [mu]m, a specific surface area from 1.5 m2/g to 2.0 m2/g and a tap density from 2.0 to 5.0 g/cm3, is included in an amount of less than 70 mass%of the electrically conductive paste excluding the organic solvent.

The present invention provides a piece of distillation equipment for producing sponge titanium, which includes a heating furnace and a reactor for containing a condensate, wherein a heating furnace cover is arranged above the heating furnace, a reactor cover is arranged above the reactor, the heating furnace cover is connected with the reactor cover by a pipe, a resistance wire is arranged on the pipe, each lifting device is arranged above the heating furnace cover and the reactor cover, a vacuum-pumping pipe is arranged above a heater cover, and a first metal sealing ring is arranged between the reactor cover and the reactor. The present invention has the beneficial effects that the distillation equipment can ensure normal production, and effectively ensure the quality of sponge titanium product. The problem of distillation tube blockage is solved by adopting a metal gasket.

Disclosed is a carbon-coated aluminum material in which the adhesion between a carbon-containing layer and an aluminum material can be maintained for a long period. Also disclosed is a method for producing the carbon-coated aluminum material. The carbon-coated aluminum material comprises an aluminum foil (1), a carbon-containing layer (2) and an intermediate layer (3). The intermediate layer (3) has a first surface region (3) which contains a carbide of aluminum and is formed on at least a part of the surface of the aluminum foil (1). The carbon-containing layer (2) has a second surface region (21) which is extended toward the outside of the first surface region (3). The carbon-containing layer (2) further contains a carbon-containing particle (22). The second surface region (21) is formed between the first surface region (3) and the carbon-containing particle (22), and contains a carbide of aluminum. In the aluminum foil (1), the aluminum content is 99.6% by mass or more, the lead content is 10 ppm by mass or less, and the magnesium content is 10 ppm by mass or less.

The invention discloses a concentric-tube double-tube steam injection wellhead device, which comprises a big cross fan and a double-tube cross fan, wherein a lateral path and a longitudinal path which are in cross arrangement are arranged in the big cross fan; the upper end of the longitudinal path is provided with a heat insulation tube hanger in a sealing mode; the heat insulation tube hanger is provided with a steam injection through hole; the double-tube cross fan is connected to the upper part of the big cross fan; the double-tube cross fan is provided with an inner steam injection path; an outer steam injection path is arranged on the periphery of the inner steam injection path; the lower end of the outer steam injection path extends radially and inwards to form a diffusion path; the diffusion path is positioned below the inner steam injection path; the lower end of the inner steam injection path is connected with an inner tube joint; the diffusion path is opposite to the steam injection through hole of the heat insulation tube hanger; and the oil tube joint extends into the steam injection through hole. The concentric-tube double-tube steam injection wellhead device has the advantages of simple structure, small volume, and reliable long-acting sealing and impact resistance in a long-term high-temperature and high-pressure condition in the steam injection process, and is convenient and flexible to operate.

The present invention provides a method for manufacturing a polymer member, including: preparing a polymer substrate having metallic fine particles impregnated on and inside a surface thereof; bringing pressurized carbon dioxide into contact with the polymer substrate to swell a surface area of the polymer substrate; and bringing an electroless plating solution containing pressurized carbon dioxide and being in a state causing a plating reaction, into contact with the polymer substrate while the surface area of the polymer substrate is swollen, to form a plating film with high adhesive strength on the polymer substrate.

The invention provides a high performance mechanical canned motor pump, which comprises a pump body (1), a pump cover (2), an impeller (13), a pump shaft (4), and a bearing box (5), and is characterized in that: a mechanical sealing device (7) is arranged between the front end of the bearing box (5) and an impeller hub or the pump shaft; a mechanical sealing device (8) is arranged between the rear end of the bearing box (5) and the pump shaft (4); a front end plate (50) of the bearing box (5) is provided with a pressure equalizer (20) to make the pressure of an inner cavity (B) of the bearing box and the inner cavity (A) of the pump cover (2) balanced; and screw pumping rings (3 and 6) and circumfluence holes (53 and 56) are arranged corresponding to the front and back mechanical sealing devices to fully cool and radiate the mechanical sealing devices and a rolling bearing. The high performance mechanical canned motor pump has the advantages of good leakproofness, long service life, safe and reliable use, good functionality and strong adaptive capacity, can be applicable to various working pressures, and fully meets the use requirement on places under working conditions such as high-pressure, toxic, flammable and explosive medium and the like.

A protective cap for a dispenser for discharging pharmaceutical and/or cosmetic liquids, wherein the dispenser has a liquid reservoir and an outlet opening through which the liquid can be dispensed into a surrounding atmosphere, and wherein the protective cap has at least one ventilation opening to allow communication between an interior and external surroundings. An irreversibly removable sealing element which covers the at least one ventilation opening is arranged on the protective cap, which sealing element closes the at least one ventilation opening in an airtight and germproof manner before a first use.

The present invention relates to thermoplastic elastic inner lining technology of repairing old pipeline without excavating, and proposes pipeline lining of thermoplastic elastomer and other kind of elastomer modified material, lining pipe making process, installing process and construction process. The inner lining is made to contact closely with the old pipeline to provide sealing performance while the old pipeline ensures the structure strength. The present invention may have different resin grain recipes for repairing different kinds of pipeline. The technology of the present invention can prolong the service life of pipeline greatly, and repair pipeline fast.

A system includes a lid that moves in a plane parallel to the mouth of a container, a mechanism for activating the lid between the open and closed positions, and a pneumatic seal that acts on the surfaces opposite the lid, and the mouth in the closed position. The mouth has a ring that protrudes laterally from the mouth. The ring and the lid are equipped with an upper latch and a lower latch to hold the lid in the closed position. The pneumatic seal has an elastic protective cover and the mechanism for activating the lid are linked to a remote control device.

Disclosed is a pile-cylinder-truss composite offshore wind turbine foundation. The pile-cylinder-truss composite offshore wind turbine foundation includes a truss structure, a suction cylinder and a pile foundation. The suction cylinder is connected to a bottom portion of the truss structure, and an embedded sleeve for mounting the pile foundation is provided on the suction cylinder. The embedded sleeve is located inside, at an edge of or outside the suction cylinder. The present invention also provides a construction process of the pile-cylinder-truss composite offshore wind turbine foundation.

The invention relates to a spindle device of a cutter for nasal surgery and belongs to the field of medical instruments. The spindle device comprises an arbor, bayonets, a motor, a hollow motor shaft, a movable cutting pipe, a fixed cutting pipe, a fixed holder, a flushing and sucking joint and a flushing and sucking fixing sleeve. The arbor and the bayonets are of integral structure, the hollow motor shaft is connected with the motor, the fixed cutting pipe is fixed to the fixed holder, the movable cutting pipe is inserted into the fixed holder, both the fixed cutting pipe and the movable cutting pipe are provided with serrated cutting edges, and the hollow motor shaft is connected with the serrated cutting edge of the movable cutting pipe. Besides, the flushing and sucking joint is connected with the motor hollow shaft, a sealer is arranged at one end of the hollow motor shaft, the flushing and sucking fixing sleeve is arranged at the other end of the hollow motor shaft, the sealer is in contact with the flushing and sucking fixing sleeve, and seal rings are sleeved on the fixed holder and the flushing and sucking fixing sleeve. The spindle device has the advantages of reasonable structure, operational simplicity and reliability, convenience in mounting and demounting, good sealing effect and low production cost and meets people's requirements in use.