103results about How to "Reduce mechanical resistance" patented technology

A quick-release system for a quick-release device, in particular for a cycle, such as a bicycle, the device being of the type including an axially extending skewer and an end support element mounted on a first end of the skewer adapted to be supported on a first tightening surface of the cycle. The quick-release system includes a tightening sub-assembly including a support surface and an actuation sub-assembly including a movable actuating mechanism, capable of axial rotation around the skewer and configured to transmit a tightening torque to the tightening sub-assembly when the device is being tightened. The system includes tightening torque limiting mechanism making it possible to limit the torque transmitted by the actuation sub-assembly to the tightening sub-assembly.

The invention relates to an adjustable impression tray (1) comprising a trough (2) in the form of an arch with a straight central portion (7) extended by two lateral branches (8,9), essentially matching the form of a dental arch and comprising several integral zones which may be deformed at the temperature of use in the form of a multi-directional extension means (12), for example an accordion-like bellows arrangement (13 to 16). The impression tray, preferably for single usage, advantageously comprises splitting zones (17, 18) which allow the production of impression trays of differing sectors, which by comprising one or several deformation zones are equally adjustable. The invention is of interest to dentists and prosthetic dentists and more generally to producers and users of dental equipment.

This invention refers to a process of plastic deformation for production of thin wall revolution shells from tubular billets. The process consists in end-forming a hollow circular section billet, which can be composed of a multi- layered assembly, by using sharp edge internal domed shaped molds (1) that are guided externally by a constraining sleeve (3). This mold-sleeve tool can be assembled in a press in order to generate the pressure forces necessary for the forming process. The plastic deformation can result in thin walled spheres or cylinders with domed ends. The resultant revolution shells have two opposite (polar) circular openings. Both the shell's length as the polar hole diameter is mainly determined by the billet's initial dimensions and mold (1) domed geometry. An innovative flexible inner mandrel may be introduced to considerably improve overall shell characteristics, allowing reduction of shell polar opening diameter, giving control of along-meridian thickness, solving typical thin wall forming problems such as buckling, wrinkling and ruptures and improve both outer and inner surface quality. This mandrel can be discarded and/or recycled after forming. This invention enables a low-cost and high-rate process for production of structural revolution shells capable of being used as high-pressure vessels.

A method and device for transferring a chip ( 18 ) situated on a transfer substrate ( 26 ) to a contact substrate ( 50 ), and for contacting the chip with the contact substrate, in which the chip, the back side ( 19 ) of which is attached adhesively to a support surface of the transfer substrate facing the contact substrate, is charged with laser energy from behind through the transfer substrate, and the chip contacts ( 59, 60 ) thereof that are arranged opposite a contact surface ( 58 ) of the contact substrate are brought into contact with substrate contacts ( 56, 57 ) arranged on the contact surface by means of a pressing device ( 45, 46 ) from behind through the transfer substrate, and a thermal bond is created between the chip contacts and the substrate contacts.

The invention discloses a method for preparing anisotropic neodymium iron boron magnetic powder through directionally breaking a thermal deformed magnet. The method comprises the following steps: (1) preparing a full-densification isotropic neodymium iron boron magnet; (2) preparing a thermal deformation anisotropic neodymium iron boron magnet; (3) directionally breaking the thermal deformation magnet: directionally breaking the round-cake-shaped anisotropic neodymium iron boron magnet, prepared in the step (2), by applying a symmetrical and circulating applied force along a radial direction at room temperature under the protection of argon, wherein the breaking force is 600-700MPa, so as to obtain a lamellar magnetic sheet; and (4) breaking the magnetic sheet in a regularized way: carrying out regularized breaking on the magnetic sheet prepared in the step (3) under the protection of the argon by adopting a rolling minding method, so as to obtain the anisotropic neodymium iron boron magnetic powder.

The invention discloses a peanut seeder, and belongs to agricultural machinery.The structure of the peanut seeder comprises a rack, a fertilizer box, a seed box, a ridging coulter, a ditching coulter and soil covering coulters; the lower portion of the seed box is provided with a seed feeding device, a compacting wheel is arranged between the ditching coulter and the soil covering coulters, the back portion of the rack is provided with a film covering frame, the two sides of the rack are provided with walking wheels, the back portion of the seed feeding device is provided with a coating agent spray head, and the coating agent spray head is connected with a coating agent pesticide drum through a pipeline; the lower portion of the front side of the rack is provided with a fertilizer falling tank which is connected with the fertilizer box; the back portion of the seed feeding device is provided with a roll cage type soil scraping device.The peanut seeder has the advantages that worker coating is changed into machine pesticide spraying, the effects of resisting diseases and increasing humidity are achieved, and meanwhile seed skinning is prevented; the fertilizer is applied to the ground in a sprinkling mode, fertilizing depth is reduced, and the ditching resistance is reduced; in addition, by arranging the mobile roll cage type soil scraping device, the ridge surface flatness is guaranteed, tidiness and uniformity of emerged seedlings are facilitated, the mechanical resistance generated in the ridging process is reduced, and farm operation is facilitated.

The invention discloses a processing device suitable for extrusion of foods and feeds in food and feed processing field. The processing device comprises a conditioner and an extrusion cavity, wherein an extrusion screw is arranged inside the extrusion cavity, one end of the extrusion cavity is provided with a feeding hole, the other end of the extrusion cavity is provided with a discharging and cutting device, and pressure building device and an ager are arranged between the conditioner and the extrusion cavity in sequence; the pressure building device comprises a pressure building screw and a pressure building cavity, the pressure building screw is in driving connection with a driving device, and the inlet end of the pressure building cavity is connected with the outlet end of the conditioner; the ager comprises a pressure maintaining aging cavity and a heat-insulation shell arranged at the periphery, a steam inlet and a steam outlet are arranged on the heat-insulation shell, the outlet end of the pressure building cavity is connected with the inlet end of the pressure maintaining aging cavity, and the outlet end of the pressure maintaining aging cavity is connected with the feeding hole. In the device, most of energy resources for aging materials are from the energy of steam led to the heat-insulation shell, thereby the input of mechanical energy resources is effectively lowered, and the energy consumption for the extrusion of foods and feeds.

A lens barrel includes a first lens set configured to move manually along an optical axis, a second lens set configured to move electrically along the optical axis, a first holding member configured to hold the first lens set, a second holding member configured to hold the second lens set, a driving member configured to move the second holding member along the optical axis, a transmitting member configured to transmit a driving force of the driving member to the second holding member, and an urging member configured to relatively urge the transmitting member and the second holding member along the optical axis. The first lens set is movable within a range of motion of the second lens set. The urging member is displaced when the second holding member interferes with the first holding member.

An elastomeric matrix impregnated with at least 70% by weight of a high atomic number radiopaque substance, and cured with an organic peroxide, to form carbon-carbon links between elastomer molecular chains. The radiopaque elastomeric matrix may be used to create a flexible, lightweight, carbon-carbon linked, multilaminated protection material against ionizing radiation. The multilaminated protec tion material may include a mechanical reinforcement cloth layer to avoid material expansion or rupture; and additional external elastomeric layers for protection against aging, physical, biological and chemical hazards, as well as allowing mechanical memory of the material and easy cleaning, desinfection and sterilization. These layers are directly merged or incorporated into a single, fused sheet with the radiopaque elastomeric matrix, without the use of glues or adhesives, during a cure and pressure application wherein the elastomer molecules create reticulated carbon-carbon links between the internal and external elastomeric layers and through the pores of the reinforcement layer. The multilaminated material allows production of colored, flexible, lightweight, durable radiation protection articles for medical, dental, and industrial uses.

The invention relates to a photo-electric control eccentric positioning single-arm four-way makeshift valve, which comprises a valve body which is divided into a high pressure chamber and a transmission valve via the baffle plate; a inlet tube connecting the valve body; a shared tube; the first exchange tube, the second exchange tube; and a transmission device and a makeshift device individually arranged at he transmission chamber and the high pressure chamber. Wherein, the transmission device comprises a motor and a transmission axle; the baffle plate has a axial hole; the shared tube, the first exchange tube and the second exchange tube are in triangle arranged in the high pressure chamber; the makeshift device comprises a single-arm swing block and a teeth plate which are contacted tightly; the single-arm swing block has a low pressure gas groove to cover the tube mouths between the shared tube and the first/second exchange tube; the bottom of single-arm swing block that relative to the mouth of shared tube is mounted on the baffle plate via the axle; the tope of transmission axle has a speed-reducing gear; the teeth plate has saw-tooth at its front; and the speed-reducing gear is meshed with the teeth plate. The invention uses the eccentric positioning to reduce the mechanical resistance in the transmission and improve the efficiency and accuracy.

The invention concerns a transponder (10), kit and method for marking wood material, such as logs. The transponder comprises a rigid casing adapted to be inserted into the wood material by means of impact, the casing comprising a wedge-shaped first edge (12) adapted to penetrate into the wood material due to said impact, and a second edge (16) opposite to the first edge, the first and second edges (12, 16) defining an insertion direction of the transponder, and radio-frequency trans-ponding means (20) covered by the casing. According to the invention, the casing is elongated in a direction perpendicular to the insertion direction. The transponder is easily applicable into a log and stays well within the log.

A blow moulded plastic bottle includes a neck, a shoulder, a tubular body portion, and an integral bottom structure including: a terminal curved portion, an internal axially inwardly directed dome, and an (annular) base joining the terminal curved portion to the dome; wherein: a spline comprises a flat part in the base plane (Pb) onto the bottle rests when it stands up; the height (h1) between (Pb) and the apex of the dome, the height (h2) between (Pb) and the spline diametral median plane (Pd) which is in the middle of the spline (17) and which is parallel to (Pb), and the maximum external diameter (Dm) of the tubular body portion, being so that [(h1)/(Dm)]*100 is comprised between 14.0 and 16.0% and (h1)<(h2)≦3.5(h1).

The disclosure mainly relates to a stainless steel sheet containing a minimum of 10.5% by weight of Cr and a maximum of 1.2% by weight of C, the microstructure of which is martensitic or austeno-martensitic and comprises at least 2% by volume of martensite, essentially characterized in that it comprises at least one local portion of lesser mechanical resistance, having a martensitic content at least 10% lower than that of the remainder of said sheet; said local portion being at least partly with a thickness equal to that of said sheet. The disclosure also relates to a method for manufacturing this steel sheet and to a steel part which may be obtained by deformation of this sheet.

The invention relates to a method for fire protection (S) of a part (1) of a gas-turbine engine made of a composite material comprising a main fibrous reinforcement compregnated by a main matrix, the protection method (S) comprising the following steps: preforming (S1) a panel of pre-preg (20) such as to grant same a shape corresponding to the shape of a surface (3) of the part (1) to be protected against fire, said panel of prepreg (20) comprising a secondary fibrous reinforcement compregnated by a secondary matrix; applying (S2) the panel of prepreg (20) thus preformed to the part (1); and securing (S3) the panel of prepreg (20) to the surface (3) by thermal treatment of the part (1) provided with said panel of prepreg (20) in order to obtain a fire-protection layer (2).

The present invention discloses a magnetorheological force transmission device which comprises at least two solid body parts adapted to be moved in a substantially translational manner against each other, and an MRF gap, which is at least partially fillable and/or filled with a magnetorheological material 2MRF, the MRF gap being arranged at least partially inside one of or both of the two parts and/or being arranged at least partially in-between the two parts, and which is characterized in that the magnetic circuit system of the magnetorheological force transmission device being designed and/or disposed to generate a magnetic flux within at least part of the MRF gap comprises at least one electromagnet, at least one permanent magnet and at least one magnetic-field-balancing insert and/or magnetic isolator.

The invention discloses a smoke dust remover. The remover comprises a dust removing box body, wherein a smoke inlet and a smoke outlet are formed at two ends of the dust removing box body respectively; the dust removing box body is further internally provided with a filtering plate and a spray head; the filtering plate divides the dust removing box body into an outer room and an inner room; the outer room is near to the smoke outlet; the inner room is near to the smoke inlet; the spray head is arranged in the outer room; a spray nozzle of the spray head is towards the filtering plate; and a water pool is arranged under the inner room and near to the filtering plate. The smoke dust remover comprises the following advantages: 1, a flushable filtering plate is adopted to remove dust, so that the effects of easiness in cleaning, and high strength are achieved, the service life of the dust remover is long, and the problem of short service life of a filtering bag is solved; 2, the filtering plate is automatically cleaned regularly, so that the mechanical resistance, the material filtering resistance and the dust resistance of the filtering plate are low, and the filtering plate can be cleaned thoroughly; 3, compared with the filtering bag, the dust remover has high reliability and low fault and repairing rates; and 4, water for cleaning the filtering plate can be recycled, so that the environmental friendliness and the resource conservation are achieved.

A gearshift cylinder for the electrically controlled mechanical automatic speed variator of car features that its cylinder body has a closed end with a through hole for piston rod, the extended head of piston rod is linked with the gearshift finger in plug-in mode, and its hydraulic unit is sealed by piston, cylinder body, intermediate bushing, sealing ring and sealing pad.

A gearshift cylinder for the electrically controlled mechanical automatic speed variator of car is composed of a cylinder body and a piston in cylinder body. Said cylinder body has two end covers to form two oil cavities and an opening for connecting piston with a gearshift arm. Its hydraulic unit is sealed by piston, cylinder body, intermediate bushing, and sealing ring. A gearshift position sensor is used for detecting the gearshift stroke.