84results about How to "Kit Kat" patented technology

The invention discloses a multi-bit convolution punching / tamping engineering groover which comprises symmetrically-arranged stroke drill pipes and a positioning beam, wherein the lower part of the positioning beam is provided with a main drill bit which can make convolution motion driven by the stroke drill pipes, a tool array seat is fixed on the lower end face of the positioning beam and provided with a tool array with alloy tool tips, and a punching / tamping hammer which can move up and down is arranged above the positioning beam. Under the punching and tamping actions of the punching / tamping hammer, the main drill bit drills rock soil to form a plurality of drill holes, and the surplus rock soil is broken by the tool array through the punching and tamping actions of the punching / tamping hammer. By using the groover disclosed by the invention, a groove can be formed at a time, and the wall of the formed groove is smooth and neat, therefore, the construction requirements are completely satisfied, and the performance index of the groover disclosed by the invention completely exceeds that of groovers of the same kind. The groover disclosed by the invention carries out drilling, punching and tamping simultaneously by using multiple drill bits and the punching / tamping hammer; and the operating state of the groover is adjusted according to the mechanical properties of rock soils of stratums, i.e. for soft stratums, an drilling is mainly performed, for hard stratums, punching is mainly performed, and for ultrahard stratums, tamping is mainly performed, thereby efficiently directly completing grooving on complex stratums.

The invention relates to a ferrite addictive for preventing cracking during sintering, and is characterized by being ferrite powder with an internal micropore structure. The ferrite addictive is added into a normal powder material according to a ratio of 5 to 20%, the mechanical strength of the additive is low, so the addictive is easy to crush and disperse into the blank to form a three-dimensional network distribution from outside to inside, namely a conductive three-dimensional network structure, thus a good channel for discharging water and glue is provided for the product, so the volatile substances are easy to discharge from the blank when the blank is heated, and cracking is difficult to form. The ferrite addictive can largely improve the blank sintering speed and greatly increase the output for factories which use the nitrogen kilns. By using the ferrite addictive, the cracking of a magnetic core feedback material during a multi-layer sintering process can be well avoided; the sintering speed can be accelerated in a factory that uses belly type furnaces, and a whole sintering process can be finished within a day; and cracking phenomenon is basically eliminated when manufacturing large-size magnetic cores.

The invention discloses a sticky note with two-dimensional codes and a use method of the note. The note is mainly characterized in that each page of the sticky note and a notebook is printed with thetwo-dimensional codes; through a mobile terminal device, the two-dimensional codes are scanned, more rich contents like characters, voice, pictures, videos and other digital contents can be stored, application shortcomings in the sticky note, and the notebook in the current society can be overcome, and the user experience of sticky note and notebook users can be improved.