56results about How to "Reduce uneven thickness" patented technology

A piezoelectric element includes in a laminated state a piezoelectric layer, a first electrode formed on a first surface of the piezoelectric layer, and a second electrode formed on a second surface of the piezoelectric layer which is opposite to the first surface. The piezoelectric layer has a film thickness of 5 μm or less, and has a flat portion formed as a second surface in parallel with the first surface, and a lateral portion inclined downwardly from the flat portion towards the first surface. The second electrode has a central portion formed in parallel with the flat portion, and a slope portion inclined downwardly from the central portion towards the flat portion. The inclination angle of the slope portion to the flat portion is gentle as compared with the inclination angle of the lateral portion to the first surface.

The invention discloses a net-knot-free screen printing plate. The net-knot-free screen printing plate comprises a net frame; a plurality of warps and a plurality of wefts are installed in the net frame, wherein the warps and the wefts are formed by stretching a wire mesh, the warps are arranged in parallel, and the wefts are also arranged in parallel; the warps and the wefts are perpendicularly arranged, contacting positions between the warps and the net frame and between the wefts and the net frame are fixed through sticking, a printing figure is installed in the middle of the net frame, and transverse printing lines in the printing figure are located in the middle of a grid parallel to the direction of the warps; and a longitudinal figure frame, a longitudinal grate-breaking prevention vertical line and the longitudinal main grate edge of the printing figure are all of a waved structure. According to the net-knot-free screen printing plate, interference of net knots is avoided, so that a printed line is thinner and higher, and product photovoltaic conversion efficiency is promoted.

The invention provides a method for growing a large-size silicon carbide single crystal. The method includes the step of heating a crystal growth chamber by using an induction coil. In the single crystal growth process, the rotation of the induction coil is controlled by a rotation mechanism, and the spacing of turns of the induction coil is reduced and the ratio of the height of the coil to the diameter of the coil is increased to control the uniformity of a temperature field in the crystal growth chamber. Through optimization of the setting of the induction coil, the uniformity of a magneticfield generated by the induction coil is improved, temperatures around the crystal growth chamber are as uniform as possible, the phenomenon of uneven thickness around the crystal is effectively reduced, the collapse, happening on a material surface, in one direction is effectively reduced, the erosion rates of the crystal growth chamber in all directions are the same, the number of use times ofconsumables is increased, the stability of crystal growth is improved, uneven heat generation of a crucible is reduced, and the uniformity of crystal growth is improved.

The present invention provides a fret bar for ingot slicing, an ingot to which the fret bar is stuck, and an ingot cutting method using the fret bar. The object of the invention is to, in cutting an ingot by using a multi-wire saw, to improve material use efficiency by reducing variations in thickness among wafers to be obtained to thereby reduce material loss in cutting and improve working efficiency by shortening the time required for slicing. Means for solving problems is that in cutting an ingot by a multi-wire saw, a fret bar for ingot slicing is used in order to form notches at the start of the cutting. The fret bar for ingot slicing is characterized by being a columnar body stuck along the length direction of the ingot to a portion of the surface of the ingot.

Provided is an imprinting apparatus that forms patterns sequentially on a plurality of areas of a substrate by using a mold and imprint material. The apparatus includes a moving unit configured to move along a horizontal plane while carrying the substrate, and an adjusting unit configured to adjust an inclination of the mold with respect to the substrate. The adjusting unit adjusts the inclination of the mold with respect to the substrate based on information related to a state of the imprint material provided on the substrate and information related to an order of pattern formation. The information related to the state of the imprint material on the substrate is variable with the movement of the moving unit.

The invention relates to a manufacturing process of a crystal diode. The manufacturing process comprises the following steps: (S1) wafer cutting; (S2) wafer assembly, namely putting a wafer lead on a lead track, sequentially grabbing each wafer to put into the wafer lead, and cutting the wafer lead into wafer lead segments of 216-360 products through a segmentation machine, and sequentially putting the wafer lead segments into the lead box; (S3) wire soldering, namely transferring the lead box with the wafer lead segments into a work bench of a wire soldering machine, adjusting the power of the wire soldering machine to be 30-50mW, the pressure to be 250-350mN and the temperature to be 240-320 DEG C, putting each wafer lead segment in the lead box on the wire soldering machine for wire soldering, so as to obtain the wafers with pins; (S4) injection molding; (S5) electroplating; (S6) separating; (S7) testing; and (S8) band loading, namely loading the tested and qualified crystal diodes to a stripped carrier band with a band loading mechanism, and carrying out plastic packaging to obtain the product. The manufacturing process has the advantages that transportation is facilitated in the manufacturing process; the product quality is improved; and classified transportation or storage is facilitated.

The invention discloses a continuous baked pancake production line capable of adjusting thickness, and belongs to the technical field of food processing machines. The continuous baked pancake production line capable of adjusting the thickness is characterized by comprising a material feeding cylinder, a dough pressing unit and a conveying unit which are successively arranged from top to bottom, abaked pancake unit arranged on the conveying unit, and a power driving unit for driving the dough pressing unit and the conveying unit; the continuous baked pancake production line further comprises an adjusting unit arranged at one side of the dough pressing unit and mutually connected with the dough pressing unit; and a machine case is arranged outside the dough pressing unit, the power drivingunit and the adjusting unit. The continuous baked pancake production line capable of adjusting the thickness provided by the invention has the beneficial effects of being capable of dynamically adjusting the thickness of a baked pancake, and being uniform in thickness of the baked pancake, high in operation efficiency, low in energy consumption, and convenient to operate.

A coating device includes a treatment tank capable of being hermetically-sealed, a substrate holder contained in the treatment tank, a rotation mechanism for rotating the substrate holder, a nozzle for spraying a coating material to a substrate held by the substrate holder, and a partial pressure reducer for reducing partial pressure of a volatile component derived from the coating material inside the treatment tank. The coating device not only prevents dust from entering a treatment tank by sealing the treatment tank hermetically, but also reduces unevenness in thickness of the coating film in the case where the coating treatment is performed to a plurality of lenses.

The invention discloses a multifunctional fitness device and an operation method. The device comprises a bottom plate, an outer roller carrier, an outer roller, a frame, pedals, a first synchronous wheel, a crank, a third synchronous wheel, a second synchronous belt, a fourth synchronous wheel, a distance adjusting seat, a guide rod, a shaft, a second synchronous wheel, a second synchronous wheel hole, a lead screw, a nut, a roller seat, a roller, a connecting rod, a first synchronous belt, a pull belt, a turbine speed reducer, a winding drum, a winding shaft, a transmission shaft, a spring, a rotating shaft and a nut. The outer side of the bottom plate is fixedly connected with a hood, the left side of the bottom plate is fixedly connected with the frame, the middle of the frame is provided with a frame groove, the upper portion of the frame is provided with a pedal hole, the upper portion of the pedal hole is provided with a crank hole, the middle of the pedal hole is provided with a pedal shaft, the pedal shaft penetrates through the pedal hole, the pedal shaft is rotatably connected with the pedal hole and rotates in the pedal hole, and the two sides of the pedal shaft are fixedly connected with the pedals. A first synchronizing wheel is arranged in the middle of the frame groove.

The invention provides a method and apparatus for tobacco stem stagewise sheeting by microwave expansion. The method includes: subjecting microwave-expanded tobacco stems (150%-180% in expansion) to primary stem sheeting, with tobacco sheet thickness being 0.8-1 mm after primary stem sheeting, performing secondary stem sheeting then to obtain thickness of 0.5-0.7 mm, and performing tertiary stem sheeting after secondary stem sheeting to obtain stem sheets having a thickness of 0.2-0.4 mm after triple stagewise stem sheeting. A press roller A and a press roller B form a primary sheeting unit, a press roller C and a press roller D form a secondary sheeting unit, and a tertiary sheeting unit is composed of press rollers D and E. The microwave-expanded tobacco sheets are produced by means of stagewise decrease from great thickness to little thickness, roller sticking rarely occurs during stem pressing by microwave expansion, the obtained stem sheets are uniform in thickness, subsequent shred productivity is significantly improved, few dregs occur, and stem slivers rarely form.