36results about How to "Reduce extrusion force" patented technology

The invention provides a folding display device. The folding display device comprises a display panel and a supporting plate used for supporting the display panel, wherein the display panel comprisesa flexible display area, a bending area corresponding to the flexible display area is arranged on the supporting plate, and an extensible hollowed-out structure is arranged in the bending area. According to the folding display device, through the arrangement of the hollow structure, the deformation capacity and the extension capacity of the bending area are improved, compared with the prior art, the extrusion acting force borne by the display panel in the bending and flattening process of the folding display device is reduced, and the risk of interlayer stripping or cracking is reduced, meanwhile, the integrated supporting plate improves flatness of the display panel and reduces the overall thickness of the display device.

The invention provides an extruding terrace die which is formed by assembling a pre-diverging die, a wedge pressing die and a terrace die core shaft. Firstly, the pre-diverging die is used for realizing the pre-distribution of metal plastic flow volumes, reducing the remain of forged pieces and increasing the utilization rate of materials; the wedge pressing die compels a metal to plastically flow under the action of the wedge pressing force, and as the plastic flow process of the metal is added, the influence on the mechanical properties of the formed part caused by machining is avoided and the purpose of improving the mechanical properties of the formed part is achieved; the terrace die core shaft and a concave die are combined to form a closed cavity so as to restrain the further radial flow of the deformed metal, as a result, the contact area between the terrace die and the deformed metal is reduced and the extruding forming force is reduced.

The invention discloses a drawing die coil inserting apparatus of a motor stator iron core. The drawing die coil inserting apparatus comprises a work bench arranged at a rack, a stator clamping device arranged at a rack and a drawing device can move in and out of the stator clamping device. The stator clamping device is fixed at the work bench. An inserting die includes guide bars, a kidney-shaped pedestal, a kidney-shaped cover plate, a connecting rod, and a locking device; insertion slots are formed in the peripheral surfaces of the pedestal and the cover plate at intervals; and one end of each guide bar is fixed in the insertion slot of the pedestal and the other end of each guide bar is arranged in the insertion slot of the cover plate in a clearance fit mode. A through hole passing through two axial end surfaces of the cover plate is formed in the cover plate. One end of the connecting rod is fixed at the axial end surface, opposite to the cover plate, of the pedestal; and the other end of the connecting rod passes through the through hole of the cover plate and the connecting rod and the cover plate are fastened together by the locking device. Besides, a drag hook seat connecting the drawing device is arranged at the axial end surface, away from the cover plate, of the pedestal. According to the invention, line insertion is carried out on all-phase windings by multiple times, thereby preventing the enameled wires in the windings from being damaged.

The invention discloses an asymmetric extrusion die and a blank formation method thereof. The asymmetric extrusion die comprises a male die and a female die; the male die comprises a top plate, a joint plate and an extrusion rod; the female die is of a circular truncated cone-shaped structure externally and is hollow internally, a die cavity is formed inside the female die and is sequentially divided into an extrusion-into section, a first asymmetric extrusion section, a uniform extrusion section, a second asymmetric extrusion section and an extrusion-out section from an extrusion inlet. According to the asymmetric extrusion die and the blank formation method thereof, one sides of blanks are extruded but the other sides of the blanks are not extruded through asymmetric extrusion channels, and therefore uneven shear deformation is generated, and shear deformation facilitates formation of equiaxial small grains of material under the effect of three-dimensional pressure stress; through the asymmetric extrusion effect of two opposite directions, the shapes of the extruded blanks are normal, the material is saved, and the energy consumption is lowered.

The invention relates to a multi-convex die step-by-step reverse extrusion forming method. A multi-convex die is composed of an inner convex die and an outer convex die, and steps of discharging, blank making, step-by-step reverse extrusion and subsequent processing are included. The multi-convex die step-by-step reverse extrusion forming method is characterized in that according to step-by-step reverse extrusion, the inner convex die and the outer convex die are used for extruding blank metal at least once, the blank metal generates flow deformation under the action of the multi-convex die, the stroke of the inner convex die and the outer convex die is controlled to obtain a hollow member with the bottom being the solid flat bottom or concave bottom or convex bottom. According to the multi-convex die step-by-step reverse extrusion forming method, in one die, forming manufacturing of the hollow parts with the flat bottoms, the convex bottoms, the concave bottoms and the like can be achieved; and the extrusion forming contact area is reduced, the extrusion forming force is reduced, and the amount of extrusion deformation can be improved.

The invention relates to a machining method of a high-quality large-diameter thin-wall barrel body. The machining method comprises the following steps. Firstly, isothermy or hot die anti-extrusion technology is utilized, and anti-extrusion is performed on an alloy forging rod. Secondly, machining is performed on the inner and outer surfaces of a spinning barrel billet, and finish turning is performed on the inner surface of the barrel bottom of the barrel billet. Thirdly, multi-pass brute force thinning spinning is performed on the machined spinning barrel billet, and the spinning is hot spinning or cold spinning. Fourthly, intermediate heat treatment is performed on a spinning semi-finished product, and the intermediate heat treatment is annealing or solution treatment. Fifthly, the third step and the fourth step are performed repeatedly and alternatively so that finished product spinning is performed. Sixthly, scouring and cleaning are performed on the barrel body, and finished product heat treatment is performed. Seventhly, polishing of the inner and outer surfaces of the barrel body after heat treatment in the sixth step is performed, and a finished product barrel body is obtained. By adoption of the machining method of the high-quality large-diameter thin-wall barrel body to machine a large-diameter thin-wall metal barrel body without welding lines, organization is even and fine, comprehensive performance is high, the process is short, product additional values are high, and good application and popularizing prospects and certain economic and social benefits are achieved.

The invention provides a crucible and a preparation method thereof. The crucible comprises: a crucible body, a first coating, a second coating and a third coating, wherein the crucible body comprisesa bottom wall and a side wall; the first coating layer is arranged on the bottom wall and the side wall for preventing metal impurities from diffusing to crystalline grains in the crucible body, the second coating is arranged on the outside of the first coating layer on the side wall, the second coating layer is used to assist in nucleating the crystalline grains within the crucible body; the third coating is arranged on the outside of the first coating layer on the bottom wall, the third coating layer is used to assist in separating the crystalline grains within the crucible body from the crucible body. The crucible of the invention can effectively reduce diffusion of the metal impurities in the crucible body into polycrystalline crystals located in the crucible body, so that purity of the prepared polycrystalline silicon is high.

The invention relates to a bicycle front fork shock eliminator locking device. The bicycle front fork shock eliminator locking device is arranged on a bicycle front fork and comprises an actuating device, a moving device and a locking device body. The actuating device can rotate and is arranged on the moving device in a sleeving mode. The locking device body comprises a deformable unit and a fixed unit. One of the deformable unit and the fixed unit is assembled on the actuating device, and the other one of the deformable unit and the fixed unit is arranged on the moving device. When the actuating device rotates, the deformable unit can be selectively switched between the locking state with squeezing of the fixed unit and the unlocking state without squeezing of the fixed unit so that the actuating device and the moving device can be set to the moving state with mutual actuation or the positioned state without mutual actuation. Accordingly, the bicycle front fork can selectively start or stop the front fork shock eliminating function.

The invention relates to a compound extrusion preparation method of a large-diameter high-quality tube blank or an annular blank. The compound extrusion preparation method is mainly aimed at materials which are large in deformation resistance, narrow in heat processing temperature range, difficult in heat processing, and difficult to deform. The compound extrusion preparation method comprises the following steps: (1) a high-quality ingot blank with high purity is prepared through a vacuum melting process; (2) homogenization treatment is carried out alternatively, multi-pass pier drawing fast forging cogging-down is carried out, an organization is refined, and the homogeneity of the organization is improved; (3) hollow blank material is prefabricated in a punch mode; (4) isothermality / heat molding compound extrusion is carried out on the prefabricated hollow blank material, the tube blank with the uniform and thin organization is prepared; and (5) subsequent machining is carried out, and a finished tube (ring) and the high-quality ingot blank are obtained. The novel preparation method is used for preparing the large-diameter tube (ring) blank with the uniform and thin organization. The preparation method is labor-saving in shaping, energy-saving, high in material utilization rate, high in product quality, and capable of resolving the problems that a tube (ring) blank prepared through a traditional process is thick in organization, poor in uniformity, large in shaping force and the like.

The invention provides an extrusion die and a method for extrusion molding inside and outside reduction blank by the same, which relate to a die and a method for extrusion molding blanks by the die, and are aimed to solve the problems that the adoption of the common blank extrusion molding die and method cannot mold a workpiece with an external shape of one end of a larger diameter and the other end of a smaller diameter, and the workpiece with an internal hole end of a larger diameter, a bottom part of a smaller internal diameter and a long axial length. The die is characterized in that a second assembly is arranged on a lower die seat; a first assembly is arranged on a second assembly; the die holes of a first lower die and a second lower die are combined to form into a lower die cavity; a cushion block and a discharging plate are detachably connected with a first pre-stressed ring; a convex die is arranged in the lower die cavity; the connection part of the convex die is arranged in a stepped through hole of a fixing plate of the convex die; and the fixing plate of the convex die is detachably connected with the cushion block and an upper die seat. The method comprises the following steps of blanking, turning, heating, extruding and annealing treatments, wherein the heating temperature is between 1100 DEG C and 1150 DEG C. With the adoption of the extrusion die and the method provided by the invention, the extrusion molding of inside and outside reduction blanks can be realized.

This application proposes a display module and a mobile terminal; the display module includes a display area and a non-display area located on one side of the display area, and a support part is arranged in the non-display area, and a support part is located on the support part A flexible display panel on the flexible display panel, the flexible display panel includes a bending portion, a flexible cover layer on the flexible display panel, and a first flexible filler between the bending portion and the flexible cover layer part; this application sets the first flexible filling part between the bending part and the flexible cover layer in the non-display area to fill the gap between the flexible cover layer and the flexible display panel, thereby reducing the flexible cover The extruding force of the plate layer on the flexible display panel improves the problem of line breakage on the flexible panel.