50results about How to "Flatness is easy to guarantee" patented technology

A composite structure is formed by depositing a one or more coatings on an open-cell foam skeleton to form a higher-density composite foam. In accordance with one aspect of the invention, the composite foam can be a carbon/carbon composite formed by a rapid densification process. The composite structure is suitable for use, for example, as a friction material employed in clutch and brake devices.

The zoned ink box for printing machine has one ink box body, two side stoppers with front arced slot matching the ink roller, support shafts at two ends and connected to the wall boards of printing machine, one row of fixed blocks embedded parallelly to the upper side and with notch, one row of ink supplying blocks below the fixed blocks with lug inserted into the corresponding notch, cam levers installed onto the ink supplying blocks separately and with rotating shaft connected to the fixed block, and elastic metal sheets covering each of the ink box body, fixed blocks and ink supplying blocks separately. The zoned ink box has separately adjustable ink supply amount for each zone and thus homogeneous ink supply.

The invention discloses a prefabricated fabricated type structure of an external wall, and relates to the field of constructional engineering. The prefabricated fabricated type structure of the external wall is composed of a thermal insulating composite wall standard piece and an auxiliary structure; the thermal insulating composite wall standard piece comprises a prefabricated type external wallload-bearing wall standard piece, a prefabricated type external wall non-bearing wall standard piece and a prefabricated type external wall load-bearing wall internal and external corner standard piece; and the prefabricated type external wall load-bearing wall standard piece is provided with an assembly type oppositely-pulling rod which is used for positioning and installing of a load-bearing wall construction formwork. According to the prefabricated fabricated type structure of the external wall, the structure is simple, economical and reasonable, the technology is advanced, using is convenient, and the prefabricated fabricated type structure is the best construction method of a composite wall structure and has good popularizing value.

The present invention provides a method for determining differentiation level of pluripotent stem cell, comprising a step of determining a flatness of cultured pluripotent stem cell, wherein the flatness is an indication.

The invention discloses an automatic production technology of an aluminum composite panel. The automatic production technology comprises the following steps of: (1) respectively unreeling a core board, a surface board and a bottom board which are respectively made of aluminum through core board unreeling equipment, surface board unreeling equipment and bottom board unreeling equipment, unreeling an upper-layer hot melt adhesive membrane and a lower-layer melt adhesive membrane through first film releasing equipment and second film releasing equipment; (2) respectively carrying out heating pre-fitting on the surface board, the upper hot melt adhesive membrane, the bottom board and the lower-layer hot melt adhesive membrane on upper pre-fitting equipment and lower pre-fitting equipment; (3) continuously pressing the core board and pressing a plurality of bumps on the panel; (4) pressing and compounding the aluminum composite panel from the pressed core board, the pre-fit surface board and the pre-fit bottom board on the compound equipment; and (5) heating, fitting, cooling, leveling, trimming, drawing, cutting and feeding the aluminum composite panel. The aluminum composite panel can be continuously produced by the production technology; and the produced aluminum composite panel is high in strength and light in weight.

The invention discloses a method and a device for obtaining smoothness of an image sensor. The method comprises the following steps: when focusing a focus figure in a central focus frame of a screen, calculating focus values of focus frames on two horizontal and/or vertical sides of the central focus frame; wherein the focus figure is vertical to a primary optical axis of a lens module, and the distance between the focus figure and the lens module is smaller than the hyperfocal distance of the lens module; and calculating the smoothness of the image sensor according to the obtained focus values of the focus frames on the two horizontal and/or vertical sides of the central focus frame. By adopting the method and the device in the scheme of the invention, the smoothness of the image sensor is simply obtained by the focus figure, so that the photographing effect of a mobile terminal is guaranteed, and no special instrument is necessary for detection.

The invention relates to a waterproof and dampproof internet of things visual scale. The waterproof and dampproof internet of things visual scale comprises an electronic scale base, a support rod andan electronic scale instrument, wherein the electronic scale base is provided with a sensor module group for weighing; the support rod is arranged on one side of the electronic scale base; the electronic scale instrument is connected with the top end of the support rod and is provided with a control circuit; the sensor module group is arranged below the electronic scale base and is electrically connected with the control circuit; a sensor module in the sensor module group is arranged in a waterproof and dampproof seal housing; the surface of the waterproof and dampproof seal housing is in sealing connection with a waterproof and dampproof ventilation assembly for adjusting the difference of the pressure inside and outside a cavity; a support plate is used for connecting a sensor and the waterproof and dampproof seal housing to form a weighing sensor module group. Both the sensor module group and the electronic scale instrument in the electronic scale adopt a full-seal design, have waterproof, dampproof and ventilation properties, and can ensure the detection precision of the sensor module; and the electronic scale improves multiple functional modules.

The invention relates to a board and a production technology thereof, in particular to an exterior wall cladding and a production technology thereof. The exterior wall cladding sequentially comprises an extruded sheet layer, a bo-mei board layer and a metallic paint layer from bottom to top. The production technology comprises the following steps: the surface of the bo-mei board is added with a layer of mixture formed by magnesium oxide and putty powder, and the mixture is trowelled; the surface layer of the processed bo-mei board is polished to lead the surface to be level; the surface layer of the polished bo-mei board is coated with a layer of fluorocarbon metal paint; an XPS extruded sheet with the same size as the bo-mei board is processed; the underside of the processed bo-mei board is agglutinated with the processed XPS extruded sheet by epoxide resin. The exterior wall cladding has good heat preservation and insulation performance, is energy-saving and environment-friendly, has level and beautiful surface, and is convenient for construction.

The invention discloses a pile grinding device for concrete pipe piles. The device comprises a first speed adjusting motor, a second motor, a grinder, a dovetail groove, a chassis, a driven support roller, a screw tilting fillet, a support roller bearing tilting fillet, a grinding disc, a screw hand wheel, a positioning bearing, a driving support roller and a lead screw. The first speed adjustingmotor is connected with the driving support roller through a chain; the second motor is connected with the grinder through a triangular belt; the grinder is mounted in the dovetail groove; the grinding disc of the grinder extends out of the dovetail groove; the screw hand wheel is fixedly connected with the lead screw; the screw tilting fillet supports the lead screw; the chassis is mounted on thepositioning bearing; the driven support roller and the driving support roller are arranged on the chassis; and the driven support roller is arranged on the support roller bearing tilting fillet. Compared with the prior art, the grinding disc of the pile grinding device for the concrete pipe piles and pipe sections are rotated at the same time; and the whole pipe wall end surfaces are uniformly contacted with the grinding disc, so that the flatness of the pipe wall end surfaces is easy to meet the standard requirement.

The invention discloses a large-size floor tile construction method including the following steps of (1) floor tile pretreatment, (2) ground treatment, (3) bottom ash plastering, (4) ground line-snapping setting-out, (5) paving and (6) seam plastering. Quick-drying thin cement mortar is smeared on the back faces of floor tiles, then the floor tiles are laid, the flatness of the ground tiles is easy to master, and the construction difficulty is greatly lowered; and the cement mortar is quickly solidified, the floor tiles and the ground are bonded more firmly, and the arching phenomenon can be effectively avoided.

The invention relates to a three-workpiece simultaneous bonding tool which comprises a base (4). The tool is characterized in that a first positioning piece (1) used for supporting and positioning a first workpiece to be bonded, a second positioning piece (2) used for supporting and positioning a second workpiece to be bonded and a third positioning piece (3) used for supporting and positioning athird workpiece to be bonded are arranged on the base (1), the height of the supporting surface of the second positioning piece (2) is larger than that of the first positioning piece (1), the second positioning piece (2) is an elastic piece, the supporting surface of the second positioning piece (2) can move under the action of external force, the third positioning piece (3) is arranged on a supporting plate (5), a first driving device (6) is in driving connection with the supporting plate (5) so as to move the third positioning piece (3) up and down, the base (1) is further provided with a second driving device (7), the second driving device (7) is in driving connection with a pressing plate (75), and the pressing plate (75) is located above the positioning pieces.

The invention belongs to the field of concrete tamping devices, and discloses a low-noise vibration excitation support, which includes a vibration exciter, a connection base and an elastic element. The vibration exciter is tightly fixed on the connection base, and the elastic element is located under the connection base. And it elastically supports the connection base, and the elastic element is arranged around the exciter. In order to avoid the resonance of the connecting platform when the vibrator is working, the first-order structural modal frequency of the connecting platform is greater than 1.15 times the maximum operating frequency of the vibrator; the vibration system composed of the elastic element and the weight of the heavy object supported during operation The first-order natural frequency is less than half of the minimum working excitation frequency of the vibrator. The structure of the low-noise excitation support of the present invention is simple, easy to use, and high in vibrating efficiency; it has the characteristics of low working noise, health and environmental protection, each part is not easily damaged, and it is economical and environmentally friendly, and can be widely used in concrete prefabrication The vibrating production of parts can be applied to the vibrating production of castings.