46results about How to "Suppression of warping" patented technology

The invention provides an auxiliary supporting structure capable of inhibiting a thin-wall structure from deformation. The auxiliary supporting structure comprises a grid supporting part and a solid supporting part which are fixedly connected, i.e., the auxiliary supporting structure adopts integral type auxiliary support which has a section in a grid and solid form in a growth direction, whereina solid part is fixedly connected with a grid part; the lower end of the grid supporting part supports on the solid supporting part; support is formed between a suspending end of the thin-wall structure and the solid supporting part; the grid supporting part adopts a slice form or an epsilon type structural form; the upper end of the solid supporting part supports on the lower end surface of the grid supporting part, and the lower end of the solid supporting part supports on a forming base plate; and the solid supporting part adopts an epsilon type structural form or a Y-shaped structural form. The auxiliary supporting structure can effectively inhibit buckling deformation of an inclined thin-wall open structure and bulge deformation of a thin-wall open structure with relatively great breath, and guarantees thin-wall suspending precision and precision of an open structural molded surface.

The invention discloses a focusing ring, which comprises an opening, an annular plane and a groove, wherein the opening is used for accommodating a semiconductor wafer; the annular plane surrounds the opening; and in particular, the groove is arranged on the annular plane in a mode of surrounding the annular plane. The focusing ring can prohibit contamination caused by the tilting of a deposited matter or the falling of the deposited matter from the focusing ring, thus the acceptance rate of the process can be greatly improved.

The invention provides a card connector which can connect with a plurality of cards by multilayer configuration, and the card connector can realize miniaturization and thinness. The card connector is provided with a housing (4) which has a plurality of card inserting portions (2,3) by multilayer configuration, and a plurality of contacts (5,5??,6,6??) contact with signal transmission terminals of cards (A,B) which are inserted in the card inserting portions (2,3), so that a plurality of cards can be connected in parallel configuration. The housing (4) is provided with a mould forming casing (7) made of insulating composite resin, and a lower layer cover component (8) made of metal. The mould forming casing (7) is provided with a lower layer baseplate portion (14) which forms the lower layer card inserting portion (2), and an upper layer baseplate portion (30) of the upper layer card inserting portion (3) which is formed on the lower layer baseplate portion (14) in parallel configuration at interval. The lower layer cover component (8) is provided with a bearing plate portion (51). The bearing plate portion (51) is inserted under the upper layer baseplate portion (30), and supports the lower surface of the upper layer baseplate portion (30).

The present invention provides a forming device and forming method of stereo circuit board, which can accuracy paste circuit board in correct location on roller surface of cylinder-shape or barrel-shape, especially on the whole circle to make gaps being the smallest and most shallow. Forming device of the stereo circuit board includes rotary mechanism (10), which holding objects (1) of cylinder-shape or barrel-shape in horizontal status of central axis and rotating the object (1) around the central axis as rotating axle; holding mechanism (20) which holding adhesive film with isolation film with the exposed adhesive layer adown, and carrying horizontally; controlling mechanism (30), which can adjust relative position to make the carried adhesive film with isolation film (2a) or the circuit board (2b) contact with surface of the rotating object (1) and controlling the pressure pushed against the object (1) surface as constancy.

The invention provides a system structure capable of decreasing the front dash panel intrusion amount, and an automobile. Through the design of four structures surrounding a front longitudinal beam and comprising a front damper tower supporting structure, a front dash panel and A pillar supporting structure, a front dash panel cross beam structure and a kickdown supporting structure, the phenomenaof root outward heaving, upward warping and bending of the front longitudinal beam are restrained, the root resisting capacity of the front longitudinal beam is improved, the anti-bending capacity ofa kick-down longitudinal beam is improved, and thus the effect of decreasing of the front dash panel intrusion amount is achieved. The system structure is comprehensively designed and is reasonable in design and high in security coefficient.

The invention discloses a pressing system restraining a blast furnace hearth plate from warping upwards and application thereof and belongs to the technical field of blast furnace equipment transformation. The pressing system comprises a pressing device, an annular check ring and castable material. The section of the main body of the pressing device is shaped like a Chinese character "tu" of a left-right asymmetry structure and comprises a pressing plate, a bottom plate and a bolt, wherein the pressing plate and the bottom plate are parallel, the bolt penetrates through the pressing plate so as to be fixedly connected to the bottom plate, and the height of the pressing plate is regulated by a nut. The bottom plate of the pressing device is inserted into the bottom of the blast furnace hearth plate warping upwards and presses on the top of a blast furnace hearth closing plate warping upwards through the pressing plate. The castable material fills the gap, formed by the blast furnace hearth closing plate warping upwards and the pressing device, in the furnace hearth. The annular check ring surrounds the outer side of the pressing device. According to the application of the pressing system, through the steps of calculating, laying, fixing, pressing, preparation before pouring, pouring, solidifying and the like, the influence caused by upward-warping of the blast furnace hearth closing plate is removed, production of a blast furnace is stabilized, various economic and technical indexes of production of the blast furnace are maintained, and the technological operation of the blast furnace is effectively guaranteed.

The invention discloses a continuous casting method capable of preventing head upwarp of a casting blank and belongs to the technical field of casting. The continuous casting method capable of preventing the head upwarp of the casting blank includes that using a curved spray continuous casting machine with 325-710 square centimeters square section or a curved spray continuous casting machine with 325-710 square centimeters round section; after starting the continuous casting machine, increasing a casting blank pull speed to a target pull speed according to the gradient of 0.1 m/min per 10 seconds; when the casting blank enters a secondary cooling region, closing the last two cooling water loops of the secondary cooling region; when the head of the casting blank passes through a withdrawal and straightening machine, controlling the pressure of a withdrawal and straightening roller at 70 to 100bar; after the head of the casting blank comes out of the withdrawal and straightening machine, opening the last two cooling water loops of the secondary cooling region, and controlling the water amount of the secondary cooling region at 0.28-0.32 L/kg. The continuous casting method capable of preventing the head upwarp of the casting blank avoids various accidents of high-nitrogen stainless steel due to the head upwarp of the casting blank in the continuous casting steel pouring process and enables the continuous casting production stability to be guaranteed.

The invention discloses a telescopic structure of a crane. The structure comprises a stand column, a steel beam connected to the top end of the stand column, first guide rails symmetrically arranged at the bottom of the steel beam, a first driving wheel arranged on the first guide rails, a balance beam arranged under the steel beam and connected with the first driving wheel through a first connecting frame, a second guide rail arranged at the lower end of the balance beam, a second driving wheel arranged on the second guide rail, a telescopic beam arranged below the balance beam and connectedwith the second driving wheel through a second connecting frame, and a third guide rail arranged at the lower end of the telescopic beam. According to the telescopic structure of the crane, a traditional flexible KBK rail is transformed into a telescopic type so that the telescopic structure can be conveniently applied to occasions limited by places. When one side of the telescopic beam is extended for hoisting, the other side of the telescopic beam abuts against the first driving wheel and a second driving wheel axle by an assembled rolling shaft, so that the problem of empty wheel pressure caused by warping of the first driving wheel and the second driving wheel is solved, and the stability of load carrying adjustment is improved.

There is provided a liquid discharge apparatus (1), which can inhibit the reduction of image quality due to transported medium wrapping from a supporting surface and medium deformation. The liquid discharge apparatus (1) includes: a transporting unit (5) that transports a medium (M) in a transporting direction (A), a discharge portion (4) that discharges a liquid to the medium (M) positioned in adischarge range (15), and a supporting portion (17) that has a first supporting surface (3a) and a second supporting surface (3b), as a supporting surface (3) supporting the medium (M) to be transported by the transporting unit (5), in which the first supporting surface (3a) supports the medium (M) in the discharge range (15) and does not have unevenness in a width direction (B) intersecting the transporting direction, the second supporting surface (3b) supports the medium (M) on a downstream side of the discharge range (15) in the transporting direction and includes uneven portions in which afirst portion (23) and an uneven portion (24) of a second portion (25), which is further recessed than the first portion, are formed alternately in the width direction.

The invention provides a machine head auxiliary pushing device of a scraper conveyor. The device comprises a first telescopic mechanism, a second telescopic mechanism, a power integration mechanism, apushing telescopic rod, an auxiliary pushing mechanism and a hinge seat set. Compared with the prior art, the device has the following beneficial effects that hydraulic oil pipes are arranged, a hydraulic jack I and a hydraulic jack II of the auxiliary pushing mechanism can work normally and are connected with a control valve group through the hydraulic oil pipes, and the auxiliary pushing mechanism can be hinged to the upper surface of the right end of a supporting base through the hinge seat set due to the design of the auxiliary pushing mechanism and the hinge seat set. When the hydraulicjack I and the hydraulic jack II on the hinge seat set stretch and retract to work, supporting force is provided, the hydraulic jack I and the hydraulic jack II synchronously stretch when the pushingtelescopic rod pushes a machine head, the situation that the machine head frequently floats upwards in the pushing direction of a working face during use in the machine head operation process is avoided, the machine head is restrained from tilting, and normal pushing of the machine head is ensured.

The present invention provides a rubber-based pressure-sensitive adhesive composition which contains a rubber-based base polymer, the rubber-based base polymer comprising an isobutylene-based polymerhaving a polydispersity coefficient, (weight-average molecular weight)/(number-average molecular weight), of 4 or less. A 50 mum-thick rubber-based pressure-sensitive adhesive layer formed from the rubber-based pressure-sensitive adhesive composition has a moisture permeability at 40 DEG C and 92% RH of 50 g/(m2*day) or less. The rubber-based pressure-sensitive adhesive composition of the presentinvention can form a rubber-based pressure-sensitive adhesive layer which has low moisture permeability and has so high durability that the adhesive layer can be inhibited from suffering troubles including lifting and peeling even in high-temperature environments.