39results about How to "Strength without damage" patented technology

A structural member having a plurality of conductive regions electrically insulated from each other, in which the plurality of conductive regions are electrically insulated from each other by continuous oxidized regions, and the oxidized regions are each formed of an oxide made of a material having a plurality of through holes or trenches formed therein.

A paperboard containing microplatelet cellulose particles has improved surface smoothness, aesthetic properties, bending stiffness and strength performance. When microplatelet cellulose particles are used for surface treatment of the paperboard, the microplatelets fill voids between fibers on the board surface. As a result, treated board has enhanced strength and surface properties such as smoothness, opacity, coating hold-out, and printability without compromising bending stiffness. Furthermore, the present disclosure relates to a process for improving board strength, surface smoothness and/or bending stiffness without the needs for densification, while maintaining other desired performances.

The invention discloses a double-layer polysiloxane super-molecular elastomer dressing for chronic skin wounds and a preparation method thereof. The method comprises the following steps that carboxyl-terminated polysiloxane reacts with a mono-bifunctionality primary amino compound and a bifunctionality primary amino compound successively, and siloxane oligomers are obtained; the siloxane oligomers react with isocyanate, and polysiloxane super-molecular elastomers serving as a base material and as a viscous layer respectively; the polysiloxane super-molecular elastomer serving as the viscous layer is dissolved and coated on the polysiloxane super-molecular elastomer serving as the base material, and the polysiloxane super-molecular elastomer dressing with a double-layer structure is obtained after solvent is evaporated. The thin film dressing has good air permeability and water absorption, the thin film base material has good elasticity and low viscosity, the thin film viscous layer shows good viscosity, and when the base material and the viscous layer are used as the dressing for the chronic wounds, growing and renewing of wounded tissues are promoted, and healing of the wounds is accelerated. According to the method, polysiloxane is adopted as the raw material, cytotoxicity and skin irritation do not exist, and the biocompatibility is good.

A scroll compressor configures suction and compression rooms between fixed and orbiting scrolls, includes a back pressure room at the orbiting scroll base plate back face, and is configured in an asymmetric tooth shape. A fluid outflow path for an orbiting scroll lap external line side compression room and a fluid outflow path for an internal line side compression room are configured on an orbiting scroll base plate, and outlet side openings of the respective fluid outflow paths are opened to an orbiting lap tooth bottom. Inlet side openings of the respective fluid outflow paths are opened to the orbiting scroll base plate face sliding with the fixed scroll, and a fixed scroll base plate face is configured with a communicating section control groove for intermittently communicating the inlet side openings of the respective fluid outflow paths and the back pressure room in accordance with an orbiting movement. The communicating section control groove is configured such that pressures of the respective compression rooms in starting to communicate and finishing communicating the both compression rooms on the external line side and on the internal line side and the back pressure become the same.

The invention relates to an axial-force-controllable surgical bone drill using a brazed PCBN (Polycrystalline Cubic Boron Nitride) superhard material drill bit. The axial-force-controllable surgical bone drill has the advantages that the control accuracy is high and damages to brain tissues can be effectively avoided. A direct-current motor is arranged in the case of a drill body. The direct-current motor is connected with an intelligent integrated control system and a direct-current power supply. The output shaft of the direct-current motor is connected with a gear transmission device. The gear transmission device is connected with a drill bit chuck through a transmission shaft. A drill bit is installed on the drill bit chuck. A thrust bearing is arranged at the junction of the drill bit chuck and the transmission shaft. The thrust bearing is in close contact with a deformable element. The deformable element is in close contact with the case. The deformable element is positioned by using an elastic element. A resistance strain gage is bonded on the internal surface of the deformable element. The resistance strain gage is additionally connected with the intelligent integrated control system. A sealing device is arranged between the drill bit chuck and the case. The drill bit comprises a cylindrical basal body. A twist drill tip is arranged on the cylindrical basal body. A spiral groove is additionally arranged on the cylindrical basal body. PCBN superhard materials are arranged in the spiral groove and on the surface of the main rear blade of the drill bit.

The invention discloses a photocureable double-layer polysiloxane supra-molecular elastomer dressing for chronic skin wounds and a preparation method of the dressing. The method comprises the following steps: making carboxyl-terminated polysiloxane sequentially react with mono-functionality and dual-functionality primary amino compounds, so that a siloxane oligomer containing a secondary amine group is obtained; reacting the siloxane oligomer with hexyl diisocyanate and cinnamoyl chloride, so that a polysiloxane supra-molecular elastomer and a photocureable prepolymer are obtained; and coating the photocureable prepolymer on the polysiloxane supra-molecular elastomer and curing the prepolymer under ultraviolet irradiation to obtain a polysiloxane supra-molecular elastomer is obtained; therefore, the polysiloxane supra-molecular elastomer dressing is prepared. The dressing is good in air permeability and hydroscopicity; a substrate of the dressing is relatively good in elasticity and low in viscosity while a binding layer of the dressing is good in viscosity; the dressing, when used as a chronic wound dressing, is conducive to the growth and the regeneration of wound surface tissues and is capable of accelerating healing of wounds. The dressing, which is prepared from the polysiloxane, is free from cytotoxicity and skin irritation and is good in good biocompatibility.

Procedure for the fabrication of a blank for a structural product, such as a blank for a structural board, from material comprising longer and shorter particles and possibly also particles smaller than these. The particles are mixed with a binding agent and possible additives and then passed into at least one blank former, from where the particles are brought onto a base. Longer particles are brought onto the base to form a first surface layer, onto which is brought at least one layer of smaller particles, and onto this layer is again brought a layer of longer particles to form a second surface layer, the smallest particles being so brought onto the base that they mainly end up in at least one middle layer in the cross-section of the blank while the amount of smallest particles diminishes towards the surface layers as seen in the cross-section of the blank. The invention also relates to an apparatus implementing the procedure and to a blank for a structural product.

A hose includes a fluorothermoplastic tube layer, a nitrile rubber friction layer disposed over the tube layer, a reinforcement layer disposed over the friction layer, the reinforcement layer comprising braided steel wire, and a cover layer disposed over the reinforcing layer, where the cover layer may comprise chlorinated polyethylene. The tube layer defines a lumen in the hose, and a vapor return line may further be disposed within the lumen of the hose. Hose embodiments of the disclosure may be useful in fueling applications for vehicles using fuels such as gasoline, gasohol, diesel, biodiesel, avgas or jet fuel.

Disclosed is a piston (1) of an internal combustion engine, constructed with a structured design and having two supporting shaft wall sections (2) lying opposite one another, with respective connecting walls (3) extending from a piston hub (4) towards the lateral edge of the supporting shaft wall sections (2), characterised in that at least one rib (5; 6; 7), preferably three ribs (5, 6, 7) is (are) provided in an inner region of the piston (1) and the amount of material in the regions surrounding the at least one rib (5; 6; 7) is reduced.

An assembly system for quickly disassembling a seat and assembling a seat with a support together is provided, the assembly system comprising: a slot attached to either one of the seat or the support; and a protrusion attached to either the support or the seat, respectively, in which the slotted hole includes an opening at one side configured to allow the protrusion to be inserted into the slotted hole from the side, and wherein the projection is configured to be removed from the slot by pulling and separating the projection from the slot through the opening at the side, thereby allowing easy, convenient and effortless assembly of the seat with the support and disassembly of the seat from the support. A seating connection and rotation composite is also provided, as well as a method for assembling the system and composite.

An electric motor rotor and a method for producing an electric motor rotor, said rotor comprising: a core (10), formed by a plurality of metallic laminations (11) of a magnetic material; polar peripheral portions (20) made of a magnetic material and affixed around the core (10); and an equal number of magnet elements (30) retained between the polar peripheral portions (20) and the core (10), the rotor having its cylindrical lateral surface defined by the polar peripheral portions (20), which are circumferentially spaced from each other, and by intermediate peripheral portions (40) provided between each two adjacent polar peripheral portions (20) and having throughout their longitudinal extensions reduced electrical conductibility and reduced magnetic permeability in relation to the core (10), at least in the regions connecting two adjacent polar peripheral portions (20). The rotor further comprises a pair of end caps (50) for retaining the polar peripheral portions (20) to the core (10).

PURPOSE: A cylindrical lockset is provided to have a small volume, to be cost effective, and to obtain excellent strength, durability, and multiple functions. CONSTITUTION: A cylindrical lockset includes a latch, a locking cage, a retractor (250), rotary shaft bearings (120), handle-operable spindles (70, 80), and spindle return springs (15). The locking cage is installed inside a cylindrical bore of a door penetrating through an inner door surface from an outer door surface. The retractor is embedded inside the locking cage and makes inner and outer door handles retract the latch. The rotary shaft bearings are installed on the locking cage. The rotary shaft return sprints biases the handle-operable spindles to the original position. The locking cage is formed of a metal sheet and partitioned into inner, middle, outer locking cage portions, which are mutually adjacent, in an axial direction. The retractor is embedded inside the middle locking cage portions, and the rotary shaft bearings are embedded inside the inner and outer locking cage portions.