43results about How to "Avoid edge damage" patented technology

Provided is a magnetic tape in which an Ra measured regarding a surface of a magnetic layer is equal to or smaller than 1.8 nm, Int(110)/Int(114) of a hexagonal ferrite crystal structure obtained by an XRD analysis of the magnetic layer by using an In-Plane method is 0.5 to 4.0, a vertical squareness ratio of the magnetic tape is 0.65 to 1.00, full widths at half maximum of spacing distribution measured by optical interferometry regarding the surface of the back coating layer before and after performing a vacuum heating with respect to the magnetic tape are greater than 0 nm and equal to or smaller than 10.0 nm, and a difference between the spacings measured by optical interferometry regarding the surface of the back coating layer before and after performing the vacuum heating is greater than 0 nm and equal to or smaller than 8.0 nm.

A stylus device for writing or drawing on a touch screen has an elongate barrel for gripping by a user and a stylus tip of rigid, non-compressible material secured to one end of the barrel and having an end face comprising a working surface configured for contact with the touch screen while writing or drawing. The stylus tip is oriented at a predetermined offset angle to the longitudinal axis of the barrel, such that the working surface is not perpendicular to the central longitudinal axis of the barrel. The working surface is applied to a touch screen to develop a contact patch between the working surface and screen sufficient to trigger an input on the screen.

A magnetic tape which is run at a speed of 4 m/sec. or higher and has recording tracks with a width of 21 μm or less, and which includes a non-magnetic support, at least one magnetic layer formed on one surface of the non-magnetic support, and a backcoat layer formed on the other surface of the non-magnetic support, wherein servo signals for controlling tracking are recorded on the magnetic layer or the backcoat layer, the value of (α/W) X (V/f) is 10 [s⁻¹] or less, and/or the value of (α/W) is 0.1 or less, wherein V [mm/sec.] is the tape-running speed; α [μm] is an amount of a weave with a cycle of f [mm] on one edge of the tape or the other edge thereof, as the reference side, for the running of the tape; and W [μm] is a width of the recording track. The magnetic tape can decrease PES and off-track and thus is excellent in servo tracking performance.

Drill bit (10) for a rock drilling tool (12), which drill bit (10) has a drilling surface (10b) that contacts rock during drilling. A longitudinal cross section (10t) of the drill bit (10) through the drilling surface (10b) exhibits the following relationships of Ltot(depth)/Ltot(5.0) and H(depth)/H(5.0) at the specied depths, where H(depth)/H(5.0) is measured according to a Vickers test and Ltot(depth)/Ltot(5.0) is measured according to the Palmqvist method, described in this document substantially along the drill bit's longitudinal axial centre line (C): (table (I)). If the drill bit (10) has en length (L) of 10 mm or greater, and a longitudinal cross section (10t) of the drill bit (10) through the drilling surface (10b) exhibits the following relationships of Ltot(depth)/Ltot(3.5) and H(depth)/H(3.5) at the specified depths, where H(depth)/H(3.5) is measured according to a Vickers test and Ltot(depth)/Ltot(3.5) is measured according to the Palmqvist method described in this document, substantially along the drill bit's longitudinal axial centre line (C): (table (II)). If the drill bit (10) has en length (L) less than 10 mm.

An avalanche photodiode includes a first-conductivity-type semiconductor layer formed within a first-conductivity-type semiconductor substrate; a first second-conductivity-type semiconductor layer formed so as to surround, in plan view for the substrate, with a gap width, the first-conductivity-type semiconductor layer; a second second-conductivity-type semiconductor layer formed deeper than the first-conductivity-type semiconductor layer and in contact with the bottom portion of the first-conductivity-type semiconductor layer; and a third second-conductivity-type semiconductor layer formed deeper than the second second-conductivity-type semiconductor layer and in contact with the bottom portion of the second second-conductivity-type semiconductor layer; and

• • a fourth second-conductivity-type semiconductor layer formed between the first second-conductivity-type semiconductor layer and the third second-conductivity-type semiconductor layer so as to be in contact with at least a portion of a bottom portion of the first second-conductivity-type semiconductor layer; and a fifth second-conductivity-type semiconductor layer formed in an upper portion of the first second-conductivity-type semiconductor layer and having a higher impurity concentration than the first second-conductivity-type semiconductor layer.

The first-conductivity-type semiconductor layer and the second second-conductivity-type semiconductor layer form an avalanche junction. The first and third second-conductivity-type semiconductor layers are electrically connected together via the fourth second-conductivity-type semiconductor layer such that the semiconductor substrate and the first-conductivity-type semiconductor layer are electrically isolated from each other.

The invention discloses a milling machining method for a wave-transmitting ceramic antenna window and aims to solve the problems that existing wave-transmitting ceramic antenna windows are low in milling machining efficiency, high in rejection rate and poor in machining quality. The method is technically characterized by comprising the steps as follows: 1, the contact relationship between a cutting edge of a tool and the surface of a workpiece is obtained; the stress field intensity of the tip of the cutting edge of the tool is solved, the critical milling depth is obtained, and then machining process parameters of the workpiece are determined according to the critical milling depth; 2, the machining path of tool follows the principle that different tool path plans are adopted for different machining areas on the same plane, and the shearing stress on the machining edge points to the inside of a material; 3, the two-end feeding process is adopted for through holes, that is, the front surface and the back surface of the same through hole are machined sequentially, and the tool stop positions are kept inside the through holes. With the method, the machined surface of the wave-transmitting ceramic antenna window can be free of damage such as pits, microscopic cracks, edge damage, hole edge breakage and the like, and the working requirements of the wave-transmitting ceramic antenna window can be met.

The invention discloses a shapable flexible display device, which comprises a flexible display panel and a plurality of electromagnetic units, wherein the plurality of electromagnetic units are arranged on the back surface of the flexible display panel; the plurality of electromagnetic units are adjacent to each other and are provided with a gap; each electromagnetic unit is electrically connectedwith the flexible display panel; and if the flexible display panel is electrified to at least two adjacent electromagnetic units, the electrified electromagnetic units generate electromagnetic force,so that the electrified electromagnetic units control the region of the corresponding flexible display panel to bend and keep bending in the gap through the electromagnetic force. According to the shapable flexible display device, the bending of any curved surface of the flexible display panel can be realized and the bending function can be kept according to requirements, and meanwhile, the edgedamage of the flexible display panel can be avoided.

This invention provides one compound crystal structure method, which actively controls the induced breakage during process based on breakage force theory to avoid fringe damage. This invention method can improve compound crystal structure product rate in industry volume.

Slicing multiple cylindrical workpieces into wafers by a multi wire saw with a gang length L_G, is performed by:

• • a) selecting a number n≧2 of workpieces from a stock of workpieces with different lengths, satisfying the inequality

and making right-hand side of the inequality as large as possible, where L_i with i=1 . . . n are for the lengths of the workpieces and A_min is a predefined minimum spacing,

• • b) fixing the n workpieces successively in the longitudinal direction on a mounting plate while maintaining a spacing A≧A_min therebetween such that the relationship

is satisfied,

• • c) clamping mounting plates workpieces in a multi wire saw, and
  • d) slicing the n workpieces perpendicularly to their longitudinal axis by means of the multi wire saw. Preferably, the wafer stacks are separated from one another by separating pieces after slicing, and at the same time are laterally supported.

The invention relates to the technical field of tea processing, and discloses a tea cake making device capable of continuously working and preventing edges from being damaged. The tea cake making device comprises an outer frame, the outer side of the outer frame is fixedly connected with a positioning block, a first rotating disk, a second rotating disk, a connecting rod, a limiting plate and a first sliding plate are matched for use, a pressing block reciprocates left and right and moves up and down, therefore, the device can continuously work, the working efficiency in the tea cake making process is improved, a recessed block reciprocates left and right, a motor does not need to be turned off after the tea cake is made, the tea cake can be clamped out without a clamping tool, a rotatingrod is movably connected to the interior of a gear, a belt is movably connected to the outer side of a second rotating rod, one side of the belt is movably connected with the rotating rod, and finallythe recessed block moves synchronously, so that the whole device is connected together, the operation can be completed by using only one motor, and the operation mode is more convenient and faster.

The invention relates to a composite fireproof door. A composite fireproof door frame is formed by bonding two solid wood angle sections with unequal widths by using a heat insulating expansion adhesive; a protective steel plate is coated along the outer edge of each solid wood angle section; a predetermined distance exists between a part of the protective steel plate and each solid wood angle section so as to form an air heat insulating chamber; an expansion sealing strip is embedded into the protective steel plate relative to the edge of the composite fireproof door; the composite fireproof door is provided with two steel plates; the inner surfaces of the two steel plates are provided with a splint and a fireproof plate respectively; two side spaces between the two fireproof plates are provided with a wood structural material respectively; the steel plates, the splints and the fireproof plates are fixed on the wood structural materials through screws; spaces between the two wood structural materials and the two fireproof plates are filled with heat insulating materials; and the periphery of the composite fireproof door is coated with a C-shaped sheathing steel sheet and is fixed on the wood structural materials by screws. By the structure, fire prevention, heat insulating and smoke and fire intrusion prevention effects are achieved under the condition of fire.

The invention discloses a non-oriented silicon steel and a production method thereof. Molten steel is smelted by adopting a vacuum induction furnace. Molten steel is directly cast into a cast belt with the thickness between 1mm and 3mm through a pair of crystallization rollers rotating in opposite directions. The casting temperature of the molten steel is between 1500 DEG C and 1700 DEG C. The cast belt is subjected to one pass or multiple passes hot rolling and rolled into hot-rolled strip steel with thickness being 0.7mm and 2.5 mm. The hot rolling temperature is between 800 DEG C and 1150 DEG C, and the hot-rolled strip steel is coiled into a roll at the temperature between 500 DEG C and 800 DEG C. Normalizing annealing is conducted on the hot-rolled steel roll after the hot-rolled steel roll is subjected to a levelling or tension levelling working procedure with the elongation rate being 1.0% and 5.0%, and the normalizing annealing temperature is between 700 DEG C and 1000 DEG C. After the steel roll after normalizing annealing is subjected to cold rolling and the final annealing and coating working procedures, low-iron loss and high magnetic induction non-oriented silicon steel products are acquired. The non-oriented silicon steel products manufactured with the production method has high-proportion magnetic induction-favorable <100> and <110> structures, and the product magnetic induction is above 1.80 T.

The invention provides an alignment control system and method for glass deviation, and relates to the technical field of glass production. The system comprises a first driving shaft and a second driving shaft arranged above a conveying roller way and perpendicular to a conveying direction, a first photoelectric switch and a second photoelectric switch for detecting first edge points and second edge points of glass, a first control module for controlling the first driving shaft to move to the first edge points and calculating first displacement distances needed to correct the glass by the firstdriving shaft, a second control module for controlling the second driving shaft to move to the second edge points and calculating second displacement distances needed to correct the glass by the second driving shaft, and a lifting motor for hoisting the glass to correct the glass by the first driving shaft and the second driving shaft. The glass is corrected in a stop state, and the peripheral edges cannot be collided, so that the lower surface scratch and the edge scratch of the glass are effectively prevented when the deviation of the glass is effectively eliminated.

The invention discloses a linear edge cutter used for solar photovoltaic modules. The linear edge cutter comprises a cutter body. A diamond wire used for edge cutting is stretched and drawn on the cutter body. According to the edge cutter, linear cutting is completed through one diamond wire to conduct edge cutting, and the linear edge cutter is convenient to install, easy to adjust and low in cost.

The invention relates to the technical field of carrying hoisting, in particular to an intelligent efficient hoisting device for carrying a metal composite plate. The intelligent efficient hoisting device comprises vertical rods and cross rods, wherein each cross rod is fixedly welded between the top ends of two corresponding vertical rods. By arranging a transverse movement mechanism and a vertical movement mechanism, a horizontal movement slider can move to any position of a plane defined by the four vertical rods, the acting force concentration point can be located over the center positionof the metal composite plate, and the metal composite plate is prevented from inclining. By arranging a lifting mechanism, the metal composite plate can be lifted, under the action of universal wheels, by pushing the whole hoisting device, the metal composite plate can be moved, fixing pieces can firmly clamp the metal composite plate and prevent the metal composite plate from falling, the metal composite plate is within the space defined by the four vertical rods and can be protected at the moment, and the situation that the metal composite plate collides with a container and causes edge damage is avoided. The intelligent efficient hoisting device has remarkable beneficial effects and is suitable for popularization.

The invention relates to a temperature-controllable drinks holder (10), with a receiving device (12) which is configured for receiving a drinking vessel (54), and provides a temperature-control chamber (14) for the drinking vessel (54); a Peltier element (16) which is coupled in a heat-transmitting manner to the temperature-control chamber (14); a heat transport body (18) which is coupled in a heat-transmitting manner to the Peltier element (16); and a fastening device (20) which is configured to fasten the Peltier element (16) and the heat transport body (18) to the receiving device (12), wherein the fastening device (20) is configured to fasten the Peltier element (16) and the heat transport body (18) releasably to the receiving device (12). The invention furthermore relates to a dashboard (50) for a vehicle (100), and to a vehicle (100) with such a temperature-controllable drinks holder (10).