Abstract: The present application relates to the field of lifting equipment, in particular to a crane and a control method thereof.

Abstract: A fuse and a production method therefor. The fuse includes upper and lower insulating layers provided with terminal electrodes, and a fuse element between the upper and lower insulating layers. The fuse further includes a functional layer provided between the fuse element and the insulating layers. The functional layer includes a substrate and an arc extinguishing material uniformly or substantially uniformly distributed in the substrate; the arc extinguishing material includes a sealed cavity; the substrate includes low temperature co-fired ceramic powder, aerosol silicon oxide, silicon oxide, inert resin, phosphoric acid, and phosphate ester polyester; the content of the arc extinguishing material is 1-50 wt %. The fuse overcomes the shortcomings of phenomena such as deformation, bending, and defects occurring to a fuse element caused by the shrinkage mismatch of the fuse element with a buffer layer and an arc extinguishing layer in a sintering process.

Abstract: A fuse and a production method therefor. The fuse comprises upper and lower insulating layers (2) provided with end electrodes (4), and a fuse body (1) between the upper and lower insulating layers (2). The fuse further comprises a functional layer (3) provided between the fuse body (1) and the insulating layers (2). The functional layer (3) comprises a base material (32) and an arc extinguishing material (31) uniformly or substantially uniformly distributed in the base material (32); the arc extinguishing material (31) comprises a sealed hole; the base material (32) comprises low-temperature co-fired ceramic powder, aerosol silicon oxide, silicon oxide, inert resin, phosphoric acid, and phosphate ester polyester; the content of the arc extinguishing material (31) is 1-50 wt %.

Abstract: The present invention provides a method and an apparatus for fracturing polycrystalline silicon, and the method includes steps of placing the polycrystalline silicon in a water tank containing water; applying an instant high voltage to the water tank so that high-voltage discharge occurs in the water of the water tank to fracture the polycrystalline silicon. The method and apparatus have advantages of simple process, uniform fragments and no metal contamination.

Abstract: The present invention provides a method and an apparatus for fracturing polycrystalline silicon, and the method comprises steps of placing the polycrystalline silicon in a water tank containing water; applying an instant high voltage to the water tank so that high-voltage discharge occurs in the water of the water tank to fracture the polycrystalline silicon.

Abstract: The present invention relates to a rippled edge beveler comprising a wheelhead feeding mechanism having an upper planker and a grinding wheel, wherein the upper planker 2 is connected to the middle planker which is connected to the lower planker fixed on the grinding wheel beam. A drive motor is joined to the lower part of the grinding wheel beam, the drive motor connected to a driving gear which engages the middle gear. The spin axis is connected to the middle gear. Several driven gears are joined to the middle of the spin axis. The driven gears are connected to the input end of the worm screw decelerator, whose output end is connected to the vertical shaft, whose end is connected to the middle planker. The present structure is reliable to use, convenient and easy to install and pleasing to the eye.

Abstract: The present invention relates to a rippled edge beveler comprising a wheelhead feeding mechanism having an upper planker and a grinding wheel, wherein the upper planker 2 is connected to the middle planker which is connected to the lower planker fixed on the grinding wheel beam. A drive motor is joined to the lower part of the grinding wheel beam, the drive motor connected to a driving gear which engages the middle gear. The spin axis is connected to the middle gear. Several driven gears are joined to the middle of the spin axis. The driven gears are connected to the input end of the worm screw decelerator, whose output end is connected to the vertical shaft, whose end is connected to the middle planker. The present structure is reliable to use, convenient and easy to install and pleasing to the eye.