5 results about "Planar flow" patented technology

This application discloses a high-silicon steel strip and its preparation apparatus, method, and application, belonging to the field of non-oriented high-silicon steel technology. The preparation apparatus includes: a crucible for planar flow casting equipment, with a heater surrounding the crucible for heating and holding the master alloy to form high-silicon steel liquid; a nozzle gap at the bottom of the crucible; a cooling copper roller located below the crucible for cooling and rapidly solidifying the high-silicon steel liquid to form an initial high-silicon steel strip of a certain thickness; and a rolling protection device located near the cooling copper roller, which creates a locally sealed atmosphere by introducing inert gas and continuously acts on the area between the high-silicon steel liquid and the cooling copper roller during the casting process. The technical solution of this application sets a rolling protection device near the surface of the cooling copper roller during the solidification process of the high-silicon steel liquid. This rolling protection device combines forced rolling and local inert atmosphere protection functions to improve the wettability of the steel liquid to the cooling copper roller and the forming stability.

This utility model belongs to the field of drainage structure parts for hot chambers, and discloses a permeable screw with threaded grooves and holes. It includes a head, a screw body, a special metal washer, and a drainage channel. Using a screwdriver and the head, the screw is screwed into the threaded opening of the hot chamber body. The screw threads engage with the threaded grooves of the hole for fixation, and the rounded tip avoids damage to the internal threads. During liquid discharge, the drainage channel forms a three-dimensional flow guiding network consisting of a through channel and drainage holes. Under pressure, the liquid rises and overflows along the through channel. The special metal washer is fitted onto the smooth rod section, and its drainage annular groove and water inlet form a planar flow guiding system. Changing the number of washer grooves allows for flow rate adjustment. This utility model has a compact and reasonable structural design, strong pressure and temperature resistance, and a simple structure. It is suitable for draining liquids from some general-purpose chemical experimental reactors, eliminating the need for expensive temperature and pressure resistant regulating valves, making it easy to use and with low maintenance costs.

The invention relates to a column (140) for a gas chromatograph. The invention suggests that the column (140) is a 3D-column comprising a carrier part (142) with a plurality of channels (143), a number of first and second connecting passages (1461, 1462) each coupling two adjacent first openings (1431) or second openings (1432) and a first and a second cover (1441, 1442) coupled to the carrier part (142), such that a 3-dimensional continuous flow path is provided. In the alternative, the column has a carrier part with a continuous planar flow path defined by an open channel formed into the carrier part, a cover part attached to the latter with a plurality of filling holes arranged along the open channel and a sealing member sealingly closing the filling holes. The invention also relates to a manufacturing method.

The application provides an inconel alloy foil and a preparation method thereof, and comprises the following steps: according to a preset alloy component ratio, feeding refined materials of each component of the alloy into a vacuum melting furnace to perform vacuum melting, and preparing a molten metal obtained by the vacuum melting into an inconel alloy cast strip with a target thickness through a plane flow casting process; cooling the plane flow cast inconel alloy extremely thin strip of the inconel alloy cast strip to room temperature under a protective atmosphere to obtain a room temperature cast strip; performing one rolling pass of cold finish rolling on the extremely thin strip of the room temperature cast strip through a rolling mill to obtain a semi-finished foil; and performing heat treatment on the semi-finished foil. The application can solve the problems in the prior art, such as a long and complicated process flow, a low yield, a waste of a large amount of resources and energy, poor uniformity of a prepared finished product, and poor mechanical properties.

Flow guide plate (1) for an electrochemical cell (3), comprising at least one planar flow guide area (5) having a center (7) and a periphery (9), wherein at least one flow guide (11) is arranged in the flow guide area (5), which fluidically connects a media inlet (13) with a media outlet (15), wherein a) a first flow guide section (17) of the flow guide (11) leads from the media inlet (13) arranged in the periphery (9) to the center (7) and transitions in the center (7) into a second flow guide section (19) of the flow guide (11), which leads from the center (7) back to the media outlet (15) also arranged in the periphery (9), or b) the first flow guide section (17) leads from the media inlet (13) arranged in the center (7) to the periphery (9) and in the periphery (9) transitions into the second flow guidance section (19),which leads from the periphery (9) back to the media outlet (15) also arranged in the center (7), wherein the first flow guidance section (17) and the second flow guidance section (19) run parallel to each other, characterized in that the flow guidance plate (1) has, in addition to the at least one media inlet (13) and the at least one media outlet (15) for a medium, at least one passage opening (23) for the same medium, wherein the passage opening (23) for the same medium is not fluidically connected to the flow guidance area (5), wherein the at least one passage opening (23) and the at least one media inlet (13) and / or the at least one media outlet (15) have the same cross-sectional size and shape, wherein the flow guidance plate (1) is designed in such a way thatthat, starting from a first position of the flow guide plate (1) in space, after a rotation of the flow guide plate (1) by a certain angle, the passage opening (23) in a second position of the flow guide plate (1) in space comes to be located at a first location where a functional opening, selected from the media inlet (13) and the media outlet (15), is arranged in the first position, and the functional opening in the second position comes to be located at a second location where the passage opening (23) is arranged in the first position.