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2086results about How to "Control deformation" patented technology

Annular thin-wall article clamping device and using method thereof

The invention provides an annular thin-wall article clamping device and a using method of the device. The clamping device comprises an annular chassis; the chassis is provided with a radial regulation mechanism of a locating workpiece; the radial regulation mechanism is divided into an inner radial regulation mechanism and an outer radial mechanism; two radial regulation mechanisms position workpiece respectively from the inner side or the outer side of the workpiece; the chassis is respectively provided with track-directed sliding grooves for the two radial adjustment mechanisms; the inner end of the sliding groove of the inner radial regulation mechanism is provided with a stopping block; the outer end of the sliding groove of the outer radial regulation mechanism is provided with the stopping block; the sliding grooves of the two groups of radial regulation mechanisms are disposed at intervals; one of the two groups of radial regulation mechanisms is provided with an axial compacting mechanism for fixing the workpiece; and the axial compacting mechanism is displaced alternatively between the two groups of radial regulation mechanisms when turning the workpiece. The clamping device can realize the processing of two side walls of the workpiece by clamping the workpiece once, and is fit for the clamping of the workpieces with different specifications. The device has the characteristics of high use rate, strong practical applicability, good generality, time saving and labor saving, light labor intensity, high production efficiency and the like.
Owner:DONGFANG TURBINE CO LTD

Optical modulator, optical modulator manufacturing method, light information processing apparatus including optical modulator, image formation apparatus including optical modulator, and image projection and display apparatus including optical modulator

A center beam which is formed out of a thin film constituted to be combined with a light reflection film provided on one surface of the center beam, which has both ends fixed and which is deformed by an electronic force; a substrate electrode which is opposed to the center beam through a gap formed on the other surface of the center beam; an opposed surface which is a surface of the substrate electrode opposed to the center beam modulating the incident light on the light reflection film, the opposed surface restricting deformation of the center beam due to application of a driving voltage to the substrate electrode by abutting on the center beam; and a substrate which has the substrate electrode having the opposed surface, formed in a concave section, and which holds a to-be-held section of the center beam, are provided. As a result, the structure of modulating light by changing the reflection direction of the incident light is simple, response is fast, the wavelength of the incident light to be used is not limited, operation is stable, reliability is high, the number of manufacturing steps is small and cost reduction can be achieved.
Owner:RICOH KK

Two lines intersection small radius, shallow earth covering and large longitudinal slope complicated linetype shield construction method

The invention discloses a shield construction method for a two-line overpass with small radius, shallow covering soil and large longitudinal slope complex linear tunnel, which belongs to the technical field of tunnel construction. The construction method of the present invention includes the following steps: determining the advancing sequence of the two-line interchange, selecting a shield machine type, taking auxiliary strengthening measures for the ground surface, strata, and segments, shield advancing, axis control and construction monitoring, and shield tunneling. In the present invention, since the shield increases the hinged part, the sensitivity of the shield is increased, and the control of the axis of the tunnel is more convenient; a suitable reinforcement and pressure scheme, a segment typesetting method and a stiffening rib scheme are selected to make the outer arc of the segment broken. Cracks and segmental water seepage can be improved; and through high-frequency monitoring and information feedback, the shield propulsion parameters are strictly controlled. By taking the above measures, the deformation and displacement of the ground surface and the tunnel are effectively controlled, which effectively reduces the cost of tunnel construction and The complex influence of the post-construction tunnel ensures the smooth progress of the construction and the effective control of the tunnel deformation.
Owner:CHINA RAILWAY NO 2 ENG GRP CO LTD

Fitting device and method for special-shaped curved surface cover plate and flexible screen

The invention relates to a fitting device for a special-shaped curved-surface cover plate and a flexible screen. The fitting device comprises a fitting body for pressing a flexible screen, a support body and a tensioning mechanism for elastically connecting the two ends of the flexible screen to the bottom of the support body or the joint body; the fitting body is provided with an air bag shell and an elastic partition wall which is positioned on the inner side; the air bag shell is provided with a flat wall and a curved wall which are used for at least pressing a flat area or an end of an archook area of the special-shaped curved surface cover plate; the flat wall and the curved wall form a flat air cavity and a bending air cavity respectively with the elastic partition wall. The fittingdevice is provided with a flat air cavity and a bending air cavity, and the air cavity can be controlled respectively, on the one hand, the fitting device can effectively control the strength of thewhole fitting body in the non-inflatable state, maintain a good shape, and effectively control the deformation of the fitting body in the inflatable state, which is more conducive to the control of the fitting strength, so as to be more favorable for controlling the bonding force; on the other hand, the different areas of the flexible screen can be attached by step, so that the bonding effect is further improved. The invention also provides a fitting method.
Owner:GUANGZHOU GOVISIONOX TECH CO LTD

Construction method for deformation control via horizontal whirling jet grouting of long cantilever in soft-rock tunnel

The invention discloses a construction method for deformation control via the horizontal whirling jet grouting of a long cantilever in a soft-rock tunnel. The method comprises the following steps of: (1) drilling on the periphery of a dug outline, carrying out the whirling jet grouting while retreating a drill stem, and lowering a first profile component after the whirling jet grouting to form a first profile pile body; (2) repeating the step (1) to construct a first curtain system; (3) drilling on a tunnel face designed in a tunnel, carrying out the whirling jet grouting while retreating the drill stem, lowering a second profile component after the whirling jet grouting to form a second profile pile body; (4) repeating the step (3) to construct a second core earth reinforcing system; (5) carrying out the mechanical digging and initial supporting on a large section; (6) drilling in the arch springing position of middle and lower steps obliquely towards the lower direction of the tunnel at 30-45 degrees, lowering a third profile component to form a third profile pile body; and (7) repeating the step (6) to construct a locking whirling jet grouting pile stabilization system. According to the construction method, the advanced reinforcement of a horizontal whirling jet grouting pile with a highly strong tunnel outline, the binding and deforming effect of a tunnel face glass fiber anchor stem, and the anchoring of the locking whirling jet grouting pile are utilized, and the deformation of rock-soil is effectively controlled.
Owner:北京中铁瑞威基础工程有限公司
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