133 results about "Strong pulse" patented technology

The invention discloses a strong pulse current orientated solidification grain ultra-fining method and a strong pulse current orientated solidification grain ultra-fining device. The device comprises a heating controller, a drawing transmission mechanism, a supporting body, an orientated solidification furnace, a cantilever table, a fixing bracket and a pulse power source. The heating controller is connected with a resistance wire of the orientated solidification furnace through a lead and a thermocouple; the thermocouple is inserted into an inner wall of the orientated solidification furnace; and the power-on and power-off states by heating an electrically melt alundum tube in an inner ring of the orientated solidification furnace are adjusted in real time according to an inner temperature value of the orientated solidification furnace, which is measured and transmitted by the thermocouple in real time so as to fulfill the aim of controlling the internal temperature of the orientated solidification furnace. The pulse power source is connected with hot and cold end electrodes through leads, and the control of the pulse current is finished according to a electric pulse parameter regulating command. A cylindrical solidification structure with fine grain dimension and uniform orientation is obtained on the premise of simple and convenient equipment, effect is obvious, the harm of electromagnetic radiation can be reduced and the environmental burden is lightened.

The invention discloses a method and a device for forming and assembling a microscale part, and is applied to the forming and the assembly of micro-precision parts such as integrated circuits and microelectronic products. According to the method, flat top type strong pulse laser illuminates on a restraint layer to form pressure wave to impact a target and make the target locally and rapidly expanded; a micro-blanking material flying at a high speed is obtained under the action of a cutting mould; the micro-blanking material flies at a high speed and then hits against a part to be assembled, so the surface appearance of the part to be assembled is copied and microscale forming is formed; and the speed of the formed microscale part is reduced to zero, the formed microscale part is attached onto the upper surface of the part and then assembled, and the positioning and the installation of the microscale part are performed, so the integration of the forming and the assembly of the microscale part is realized. By the method, the forming and the assembly of the microscale part can be realized simultaneously; therefore, the method is a modern micro-device making method which integrates the processing and the assembly of the microscale part, and has the processing characteristics of high flexibility and high efficiency. Moreover, rapid industrialized production in a large scale is easyto realize.

The invention discloses a technology and equipment for coating a film in a deep hole. The equipment comprises two cathode target systems, two magnetic filtration systems, a vacuum chamber, a turnoversystem, a ceramic solenoid, a workpiece system, auxiliary anodes and the like. A bent tube is a direct current magnetic field; the cylindrical vacuum chamber is a strong pulse focusing magnetic field;and a ceramic tube wound in the vacuum chamber is also wound with the pulse focusing magnetic field. A cathode target is a pushable target when working; inert gases, Ar and hydrogen, are introduced into the vacuum chamber before coating the inner wall of a cylinder, surface cleaning is carried out through corona discharge between the auxiliary anodes and the inner wall of a piece to be coated, and arc deposition film coating is carried out after the cleaning. the length-diameter ratio of the cylinder capable of being coated by the technology and the equipment can be more than 20:1, wherein the diameter of the hole is not less than 20 mm, and the thickness uniformity of a film layer is better than +/-15%, thus making up the key technical bottleneck of poor uniformity and the limited length-diameter ratio of coating the film on the inner wall at home and abroad.