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39results about How to "Suppress local deformation" patented technology

Vehicle rear door and method of assembling same

A rear door that is provided in an openable and closable manner at a vehicle body rear portion, the rear door having: a frame portion that forms along an external edge of the rear door, a door windshield panel that is provided in the frame portion, and a lateral beam that spans between both lower end corner portions of the windshield panel, wherein at coupling portions of the frame portion and the lateral beam, the frame portion and the lateral beam each have a closed sectional structure, and the closed sections of the frame portion and the lateral beam are continuous.
Owner:HONDA MOTOR CO LTD

Very thin hard steel sheet and method for producing the same

Disclosed is a very thin hard steel sheet having a thickness of not more than 0.400 mm and containing, in mass %, 0-0.800% (inclusive) of C, 0-0.600% (inclusive) of N, 0-2.0% (inclusive) of Si, 0-2.0% (inclusive) of Mn, 0-0.10% (inclusive) of P, 0-0.100% (inclusive) of S, 0-3.0% (inclusive) of Al and 0-0.200% (inclusive) of O. Secondary phases having an average length of not less than 0.10 [mu]m and an average breadth of not less than 0.05 mu m, while satisfying the following relation: average length / average breadth >= 2.0 are contained in the steel sheet at a volume fraction of not less than 0.05%.
Owner:NIPPON STEEL CORP

Tubular part punching tooling

The invention discloses a tubular part punching tooling. The tubular part punching tooling comprises a base, a pressing mechanism and a supporting mechanism; the pressing mechanism is retractably arranged on the base in a penetrating mode; the supporting mechanism comprises a sliding rail, a regulating structure and two supporting plates; the sliding rail is fixedly connected with the base, and the two supporting plates are slidably connected with the sliding rail; the regulating structure is retractably arranged on the sliding rail in a penetrating mode; and the regulating structure comprisesa cam, the cam is arranged between the two supporting plates, and the center line of the cam is coincident with the center line of the pressing mechanism. According to the tubular part punching tooling, positioning of tubular parts to be drilled is realized, supporting for inner hole walls of the tubular parts is realized through the supporting plates, and deformation of inner holes of the tubular parts is prevented; and meanwhile, the phenomenon of stress concentration is relieved, and local deformation caused by material extension and stress concentration is restrained.
Owner:ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD

Polishing head and polishing apparatus

The present invention is a polishing head which is provided with at least: an annular rigid ring; a rubber film that is bonded to the rigid ring at a uniform tension; a back plate that is joined to the rigid ring so as to form a space together with the rubber film and the rigid ring; and an annular template that is arranged concentrically with the rigid ring in the periphery of the lower surface portion of the rubber film and holds an edge portion of a workpiece. The polishing head polishes the front surface of the workpiece by holding the back surface of the workpiece in the lower surface portion of the rubber film and bringing the front surface of the workpiece in slide contact with a polishing cloth that is bonded to a polishing plate. The polishing head is characterized by additionally comprising a non-compressible fluid that is sealed in the above-described space. Consequently, final polishing of a workpiece can be performed and the entire of the workpiece can be uniformly polished regardless of the thickness of a template by a polishing head that holds the back surface of the workpiece at a rubber film, while holding the edge portion of the workpiece with the template. The present invention also provides a polishing apparatus.
Owner:SHIN-ETSU HANDOTAI CO LTD

Pneumatic tire

The invention aims to provide a pneumatic tire, which has excellent wetland properties and operation stability. A pneumatic tire 1 comprises a tread portion 2 having an outboard tread edge Te1 to be positioned away from the center of a vehicle body and an inboard tread edge Te2 to be positioned close to the center of the vehicle body. The tread portion 2 is provided with an inboard shoulder main groove 12, and an inboard shoulder land region 15 between the inboard shoulder main groove 12 and the inboard tread edge Te2. The inboard shoulder land region 15 is provided with inboard shoulder rug grooves 21, connecting sipes 22, and inboard shoulder sipes 23. The inboard shoulder sipe 23 is made up of a straight outer part 24 extending from the inboard tread edge Te2 toward the axially inside,and a straight inner part 25 extending to the inboard shoulder main groove 12 at a flexion angle with respect to the outer part 24. The axial length of the inner part 25 is more than the axial lengthof the connecting sipe 22.
Owner:SUMITOMO RUBBER IND LTD

Aluminum alloy fixing device with outer wall clamping and inner wall supporting functions

The invention relates to the technical field of aluminum alloy, and discloses an aluminum alloy fixing device with outer wall clamping and inner wall supporting functions. The aluminum alloy fixing device comprises a base. The base is used for supporting the whole device, through cooperative use of a first clamping plate, a transverse rod, a limiting rod, a first rotary disc and a second clampingplate, the outer side of aluminum alloy can be fixed, therefore, the stability of the aluminum alloy during machining is guaranteed, the aluminum alloy can be automatically loosened after machining iscompleted, and the intelligence of the whole device is improved; through cooperative use of a disc and a sleeve rod, the inner wall is supported while the outer side of the aluminum alloy is clamped,deformation of the tubular inner wall is prevented, the phenomenon of stress concentration is relieved, finally, local deformation caused by material extension and stress concentration is restrained,through cooperative use of a special-shaped disc, a first supporting rod and a vertical rod, two steps of clamping on the outer side and supporting on the inner wall are linked, therefore, the linkage performance of the whole device is improved, and the operation is easier.
Owner:重庆世茂机械制造有限公司

Lithium-ion battery

The invention discloses a lithium-ion battery which is provided with a shell and an electrolyte and an electric core that are wrapped in the shell; the electric core consists of one or more monomer cores; the monomer core consists of two or more complexes; the complex is prepared by the superposed arrangement and pressing of a positive plate, a diaphragm paper and a negative plate; two sides of the diaphragm paper are provided with a bonding layer respectively; and the bonding layer uses polycarboxylic tetrafluoroethylene or polyvinylidene fluoride as preparation material. The lithium-ion battery has the advantages of being not easy to deform when in use.
Owner:深圳市普天通数码实业有限公司

Aluminum alloy in mold for tire and tire mold

InactiveUS20080233000A1Enhancing elastic limit strainImprove mechanical propertiesTyresMaterials scienceAluminium alloy
An aluminum alloy for a tire mold comprises Mg: 3.0-6.0 mass %, Si: 0.2-4.5 mass % and the balance being Al and inevitable impurities.
Owner:BRIDGESTONE CORP

Polishing head and polishing apparatus

A polishing head comprising an annular rigid ring; a rubber film attached to the rigid ring by using uniform tensile force; a back plate that is connected to the rigid ring and forms a space portion with the rubber film and the rigid ring; and an annular template that is provided at a peripheral portion of a lower surface portion of the rubber film concentrically with the rigid ring and configured to hold an edge portion of a workpiece, the polishing head holding a back surface of the workpiece on the lower surface portion of the rubber film and sliding a front surface of the workpiece on a polishing pad attached to a turn table to perform polishing. The polishing head and the polishing apparatus can be used for final polishing and uniformly polish the entire front surface regardless of the thickness of the template.
Owner:SHIN-ETSU HANDOTAI CO LTD

Lighting device, display device and television receiver

The present invention aims at providing a lighting device configured to suppress uneven brightness, and a display device or a television receiver which includes the lighting device. The lighting device of the present invention includes a plurality of LEDs 16, an LED board 17S, a chassis 14, a connecting component 60, and a reflection sheet 21. The LEDs 16 are mounted on the LED board 175. Both of the LED boards 17S and 17C are attached to the chassis 14. The connecting component 60 electrically connect the LED boards 17S and 17C to each other. The reflection sheet 21 is overlaid on light source mounted surfaces 17A. In the lighting device, the connecting component 60 is arranged on a connecting component attached surface 17B of the LED board 17S. The connecting component attached surface 17B is opposite to the surface on which the reflection sheet 21 is overlaid.
Owner:SHARP KK

Preparation method of lithium ion battery

The invention discloses a preparation method of a lithium ion battery, which comprises the following steps: (1) preparing a positive plate, a negative plate and diaphragm paper; (2) preparing an electrical core by using the positive plate, the negative plate and the diaphragm paper: sequentially arranging the positive plate, the diaphragm paper and the negative plate between two layers of poly(ethylene terephthalate) resin films to be processed by thermal compounding to obtain a compound which comprises the positive plate, the diaphragm paper and the negative plate, making two or more than two compounds into single electrical cores, and connecting the single electrical cores in parallel or in series to form the electrical core; (3) arranging the electrical core into a shell, injecting electrolyte into the shell for formation treatment and capacitance dividing treatment, and then, obtaining the lithium ion battery. When the method is used for preparing the lithium ion battery, the irregular expansion of the lithium ion battery can be effectively controlled, thereby enabling the appearance of the lithium ion battery to be smooth and regular and being beneficial to the circulation times and the magnification discharge performance of the lithium ion battery.
Owner:深圳市普天通数码实业有限公司

Rim for a pneumatic tire

ActiveUS20130270892A1Local deformation be suppressSuppress occurrence of damageRimsEngineeringFlange
It is an object of the present invention to provide a rim for a pneumatic tire that can suppress local deformation of the sidewall portion of a mounted tire and thus suppress the occurrence of damage to the sidewall portion. The rim for a pneumatic tire according to the present invention is provided with a pair of bead seat portions separated from each other in a rim width direction and a flange portion extending outwards in a rim radial direction from a rim width direction outer end of each bead seat portion. A rim radial direction outer end of the flange portion is recurved outwards in the rim width direction. A radius of curvature of a surface of the flange portion at a rim width direction outer end portion of the flange portion is at least 0.4 times and at most 1.0 times a radius of curvature of the surface of the flange portion at a rim width direction central portion of the flange portion.
Owner:BRIDGESTONE CORP

Hole punching tooling for tubular parts

The invention discloses a tubular part punching tooling. The tubular part punching tooling comprises a base, a pressing mechanism and a supporting mechanism; the pressing mechanism is retractably arranged on the base in a penetrating mode; the supporting mechanism comprises a sliding rail, a regulating structure and two supporting plates; the sliding rail is fixedly connected with the base, and the two supporting plates are slidably connected with the sliding rail; the regulating structure is retractably arranged on the sliding rail in a penetrating mode; and the regulating structure comprisesa cam, the cam is arranged between the two supporting plates, and the center line of the cam is coincident with the center line of the pressing mechanism. According to the tubular part punching tooling, positioning of tubular parts to be drilled is realized, supporting for inner hole walls of the tubular parts is realized through the supporting plates, and deformation of inner holes of the tubular parts is prevented; and meanwhile, the phenomenon of stress concentration is relieved, and local deformation caused by material extension and stress concentration is restrained.
Owner:ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD

Method for preparing lithium-ion battery core

The invention discloses a method for preparing a lithium-ion battery core, comprising the following steps of 1) preparing a positive plate, a negative plate and diaphragm paper; and 2) preparing an electric core by the positive plate, the negative plate and the diaphragm paper, and arranging the positive plate, the negative plate and the diaphragm paper sequentially between two layers of teryleneresin films, carrying out hot-composing to obtain a complex consisting of the positive plate, the diaphragm paper and the negative plate; preparing a monomer electric core by two or more complexes andpreparing the electric core by connecting the monomer electric cores in parallel or in series. The lithium-iron battery core prepared by the method can effectively control the irregular expansion ofthe lithium-iron battery core and lead the appearance of the lithium-iron battery to be smooth and regular.
Owner:深圳市普天通数码实业有限公司

Conveyance roller for heating furnace

A conveyance roller for a heating furnace includes: a roller body constituted by a metal tube made of a heat-resistant alloy; at least one holding protrusion provided on an outer circumferential surface of the roller body for holding an object to be heated in the heating furnace, and protruding from the outer circumferential surface of the roller body in a plurality of positions at a given interval in a longitudinal direction of the roller body; and at least one shielding member provided to be adjacent to the at least one the holding protrusion in the longitudinal direction, and covering the outer circumferential surface of the roller body. The at least one shielding member has a thickness not larger than a height of the holding protrusion from the outer circumferential surface of the roller body.
Owner:NORITAKE CO LTD

Method for Controlling Surface Groove Defects of Three-Layer Hollow Sandwich Structure

The invention relates to a method for controlling surface groove defects of a three-layer hollow sandwich structure in the field of welding technology. The method includes: performing high-energy beam modification treatment on both sides of the diffusion connection part of the upper panel and the lower panel of the titanium alloy, obtaining a gradient structure with high temperature deformation resistance, and suppressing local deformation around the connection part during superplastic forming; The surfaces of the upper panel, the lower panel and the core plate of the gradient tissue are all cleaned; an upper cover and a lower cover suitable for the size of the upper panel and the lower panel are prepared, and the upper cover and the lower cover are The deformation resistance of the titanium alloy panel is higher than that of the plastic deformation resistance of the titanium alloy panel; the lower sheath, the lower panel, the core board, the upper panel and the upper sheath are coated with solder stopper and then stacked from bottom to top, and the laminated structure is surrounded. The seal is welded and sealed, and vent holes are reserved; the upper and lower sheaths are removed after the laminated sealed structure is heated and pressurized to realize diffusion connection and superplastic forming.
Owner:AVIC BEIJING AERONAUTICAL MFG TECH RES INST

Conveyance roller for heating furnace

InactiveCN111971401AEliminate obstacles to deliveryInhibit direct contactConveyorsCharge manipulationEngineeringAlloy
Provided is a conveyance roller for a heating furnace, the roller being resistant to local deformation. A steel sheet is conveyed in a state held entirely by holding projections (70), which are made of a heat-resistant alloy and protrude higher than a shielding member (72), at multiple positions on the outer circumferential surface of a roller body (68) at a specified interval in the longitudinaldirection of the roller body (68). The holding projections (70) made of a heat-resistant alloy contact the inward-conveyed, cold steel sheet over little contact area, so the transmission of heat fromthe roller body (68) to the steel sheet is minimal, rapid cooling of the roller body (68) is suppressed due to radiative cooling from the hot roller body (68) being shielded by the shielding member (72) provided between the holding projections (70), and local deformation of the outer circumferential surface of the roller body (68) is suppressed. As a result, the holding projections (70) do not deform, and the occurrence of hindrances to the conveyance of the steel sheet is resolved.
Owner:NORITAKE CO LTD
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