5results about How to "Avoid cumbersome process" patented technology

The invention provides an electrical line device mechanical calculation tool and a use method thereof. The electrical line device mechanical calculation tool comprises a data input module, a calculation processing module and a result output module. Wherein the data input module is used for acquiring an initial parameter of a to-be-processed electrical line device, and transmitting the initial parameter to the calculation processing module; the calculation processing module is used for calculating mechanical parameters of the to-be-processed electrical line device based on the initial parameters and transmitting the mechanical parameters to the result output module; and the result output module is used for outputting the mechanical parameters. According to the method, the problems of tedious calculation process, low precision and limited applicability of the existing scheme for manually calculating the mechanics of the electrical circuit device can be solved.

The invention discloses a high-sealing aluminum foil composite film for packaging a silicon PU material, and relates to the technical field of aluminum foil composite films. 2-carboxyethyl phenyl hypophosphorous acid and diethanol amine are polymerized in advance to prepare a long-chain flame retardant, the long-chain flame retardant and a PET chain segment are subjected to block polymerization to prepare flame-retardant PET, the flame-retardant PET is subjected to melt extrusion and then stretched into a film, then one side of the PET film is coated with a melamino-formaldehyde / polyethylene glycol mixed solution, and the flame-retardant PET film is prepared. And carrying out hot-pressing compounding with aluminum foil after drying and shaping to prepare the aluminum foil composite film.

The invention provides a preparation method of a multilayer circuit board and the multilayer circuit board. According to the invention, the first etching layer, the second etching layer and the third etching layer are arranged in the area close to the first opening, and the windowing can be formed in the multilayer circuit board by etching the etching layers, so that the problem of tedious process due to pasting of a protective film in a previous windowing process is avoided; and the problems that time is consumed and the adhesive tape is easy to remain in the post-windowing process are solved, and the problem that the protective layer is damaged due to laser is also solved.

The application discloses a folding screen hinge rotating shaft module automatic electrical performance comprehensive test platform, relates to the folding screen hinge rotating shaft module test technical field, and comprises a rigid rack, a test shaft is uniformly and movably connected in a hollow groove of the rigid rack, and a folding test bench one is fixedly arranged on the test shaft at the top of the groove. The application organically integrates the programmable folding fatigue test and the high-precision axial virtual position test, can monitor the micro changes of the internal gap of the hinge online and accurately while applying the continuous fatigue stress, supports the flexible switching of the symmetric and single-side driving modes, and thus provides an efficient and accurate solution for evaluating the comprehensive performance and long-term reliability of the folding screen hinge rotating shaft module.

The invention discloses a high-sealability aluminum foil composite film for encapsulating silicon PU materials, and relates to the technical field of aluminum foil composite films. The invention prepares a long-chain flame retardant by polymerizing 2-carboxyethylphenylphosphite and diethanolamine in advance, and block polymerizes the long-chain flame retardant with a PET segment to prepare a flame-retardant PET, and then stretches the flame-retardant PET into a film after melt extrusion, and then coats a melamine formaldehyde / polyethylene glycol mixed solution on one side of the PET film, and then heat-presses and composites it with aluminum foil after drying and shaping to prepare an aluminum foil composite film.