214results about How to "Distribute stress" patented technology

The invention relates to a preparation method of a low-cost high-alumina ceramic thin plate. The preparation method of the low-cost high-alumina ceramic thin plate is characterized by including the steps: 1) raw material treatment; 2) raw material proportioning and mixing: weighing raw materials including, in weight percent, 10%-25% of coal series kaolinite, 10%-25% of calcined bauxite, 20%-30% ofcommon kaolinite, 15%-25% of feldspar, 0-5% of talcum and 18%-25% of quartz to obtain a blank; adding reinforcing agents equivalently accounting for 0.1%-0.25% of the total weight of the blank, performing ball milling for 12-18 hours and uniformly mixing the raw materials to obtain mixed materials; 3) pelleting and aging; 4) semi-dry pressing; 5) drying; 6) glazing; 7) sintering to obtain the low-cost high-alumina ceramic thin plate. The feldspar is formed by mixing potassium feldspar with soda feldspar, and the weight ratio of K2O to Na2O of the mixed feldspar chemical composition is 2:1. The sintering temperature of the high-alumina ceramic thin plate prepared by the method is only 1180 DEG C, so that the ceramic thin plate is low in cost and high in strength.

The invention provides an elastically deformable display substrate, a preparation method thereof and a display device, belongs to the technical field of flexible display and can solve the problem thatthe normal display is influenced by the fact that conventional display devices extend and deform to a certain degree with stretching of the substrates. A plurality of first bulges on the first side of a deformable layer of the display substrate and display devices on the first bulges can also be called an interconnection island structure, and second bulges are further arranged on a second side ofthe deformable layer and used for relieving and dispersing stress of the first bulges on the deformable layer. Therefore, normal display affected by damage of contact surfaces between the display devices and the first bulges due to stress on the first bulges is effectively prevented, that is, the display devices can display normally whether in the stressed stretching state, the unstressed state or the deformation restored state by means of the second bulges. The display substrate is suitable for various display devices.

The invention provides a cover plate for a flexible screen and a manufacturing method thereof, a flexible display module and electronic equipment, wherein, the cover plate comprises: a base plate; a first cladding layer covering the first surface of the base plate; a first adhesive layer which adheres the first cladding layer with the base plate and forms a hollow structure between the base plateand the first cladding layer through at least one first bulge arranged on the first surface of the first adhesive layer. The invented cover plate effectively improves the anti-cracking intensity through the buffering action and the stress dispersing action of the bulges.

The invention relates to a stabilizer used between spine plates, and belongs to the technical field of medical instruments, particularly, human insertions. The stabilizer comprises an opening fixing plate, a buckle fixing plate and elastic structures, wherein the elastic structures are respectively arranged at the middle parts of the opening fixing plate and the buckle fixing plate; the opening fixing plate and the buckle fixing plate are connected through a clamping device, and are further fixed through movable inserting plates; the elastic structures comprise U-shaped structures and torsion structures. The stabilizer can realize elastic stability of stretching, bending, side bending and rotating of spine operation sections as well as dynamic stability of circumduction formed by multidirectional activity synthetic action, has the characteristics of being disperse in stress, convenient to implant and strong in matching ability with spinous process thickness and spine interval, and can be used for cases with oversize lumbosacral angles, over short spinous processes or undersize spine intervals; the problem that in the conventional various fixture techniques applied to the dynamic spinous processes, the supraspinal ligaments need to be excised or incised, the fixing is unreliable, the activity in various directions cannot be elastically limited, the matching ability with the spinous processes is poor, and negative damage in the operation is large are solved.

The invention relates to a tensile fixture, and particularly discloses a coaxiality-adjustable winding type tensile fixture. The coaxiality-adjustable winding type tensile fixture comprises an upper fixture and a lower fixture which are arranged along the vertical direction, have the same structures and are in mirror symmetry, wherein the lower fixture comprises a fixture body; the lower end of the fixture body is connected with a connector; the fixture body is provided with a winding column and a clamping roller which are arranged along the transverse direction; the winding column is provided with a left and right adjustment mechanism; the clamping roller is provided with a clamping mechanism. After the coaxiality-adjustable winding type tensile fixture is used, the coaxiality can be adjusted according to the diameters of different samples, so that test force and deformation measurement are guaranteed, the stress of the samples is relatively dispersed, the samples are prevented from being damaged at the clamped parts, the breakage of the sample at the root of the fixture can be effectively prevented, lateral swing caused by the gravity of the fixture can be effectively reduced, and the sample can be conveniently clamped.

The invention discloses a design method for unbonded prestress and steel-concrete combined reinforcement of a concrete box girder. The design method comprises the following steps of I, determining a combined reinforcing structure: determining the unbonded prestress and steel plate-concrete combined structure of the box girder to be reinforced wherein the combined reinforcing structure comprises a steel jacket box formed by a base steel pate, two longitudinal side steel plates and two end part plugging steel plates, and a plurality of unbonded prestressed reinforcing bars are arranged in the steel jacket box; II, determining structural parameters for reinforcing the front box girder; and III, determining structural parameters of the combined reinforcing structure in the process comprising the following steps of initializing the parameters, calculating theoretical maximum thickness of the reinforcing steel plates, determining the thickness of the reinforcing steel plates and the thickness of concrete, and determining the height of the longitudinal side steel plates and the width of the base steel plate. The method disclosed by the invention is simple in steps, reasonable in design, convenient to realize, and good in using effect, the structural parameters of the combined reinforcing structure of a bridge can be simply, conveniently and quickly determined, and the designed combined reinforcing structure of the bridge is economical and practical and good in reinforcing effect.

The invention aims to provide a durable installation structure for a cam shaft and a timing gear. The structure can position accurately and is convenient to install. The installation structure for the cam shaft and the timing gear comprises the cam shaft, the timing gear and a bolt, and is characterized in that the surface of one end part of the cam shaft is provided with radial splines; the center of the end part is provided with an axial screw hole for installing the bolt; the middle of the timing gear is provided with shaft holes, one side of the timing gear is provided with radial splines which are matched with and engaged with the splines of the cam shaft, the timing gear is fixed at the end part of the cam shaft in a tightening mode through the bolt; and the splines of the timing gear are in fit connection with the splines of the cam shaft, thus the installation is convenient and the work efficiency is improved. By using the installation structure, not only can the timing gear be positioned, but also stress generated when the timing gear and the cam shaft rotate can be dispersed, thereby eliminating stress concentration and prolonging service life.

The invention relates to a workpiece holding device (D), provided with a transversal rotation axis in relation to the tool downward axis of a machining machine tool (M), with which the device (D) is associated. Said device is characterised in being composed of a frame supporting two bearings for rotational guiding according to said transversal rotation axis, the structure formed by the frame and both bearings being closed by a rotary worktable, the ends of which are removably connected to both rotational guiding bearings which are arranged to take into account axial forces. Said device applies to workpiece holding inside a machining station.

The invention provides a containing-type node, belonging to the technical field of mechanical connection parts. The containing-type node comprises a bent plate for connecting a main chord of a tube structure truss and a main chord part, wherein the bent plate comprises an edge part and a bulge part which protrudes in a bunch shape from the middle of the edge part; the outline of the edge part is matched with that of the main chord; and the edge part is wrapped on the main chord part. The containing-type node can effectively simplify the node structure, lowers the stress concentration, and enhances the strength and reliability, so that the truss structure which is usually lighter than the box-type structure by more than 30% can be widely adopted and is especially applied to the fields of hoisting and engineering machinery and heavy-duty mobile load.