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65results about How to "Prominent effect" patented technology

Mining intrinsically safe multi-point displacement meter

The invention discloses a mining intrinsically safe multi-point displacement meter with magnetic anchor heads and a magnetostrictive line as displacement sensors. The mining intrinsically safe multi-point displacement meter is structurally composed of the magnetic anchor heads, a flexible measuring bar, an instrument cabin, an echo energy change detection device, magnetostrictive line supporting blocks and an end fixing device, the magnetostrictive line is arranged in the flexible measuring bar, the magnetic anchor heads are fixed to a mine tunnel roof rock layer, a processor sends an electric pulse to the magnetostrictive line through a drive circuit, the electric pulse and the magnetic anchor heads interact to form torsional waves and longitudinal waves, the electric pulse spreads in the magnetostrictive line, the arrival time of an echo wave is detected through the echo energy change detection device, and the roof displacement of the positions of the magnetic anchor heads can be calculated. Compared with a multi-point displacement meter with four to six measuring ropes, the number of multi-point displacement ropes in the same drilled hole of the mine tunnel roof rock layer can be reduced, and the problem that the multi-point displacement ropes in the same drilled hole are complex in mounting and prone to being wound is effectively solved.
Owner:晋能控股电力集团有限公司 +1

Magnesium alloy construction member step temperature forming method

The invention provides a magnesium alloy construction member step temperature forming method. The method comprises the process route, namely homogenizing, preforming, warm forming and low temperature forming and is characterized in that: 1, in the stage of homogenizing and preforming, homogenizing is carried out in a heating furnace, and upsetting and preforming are directly carried out by utilizing a blank homogenizing temperature, wherein the thermal temperature of preforming is 380 minus or plus 10 DEG C; 2, in the stage of warm forming, warm extrusion forming is carried out on the preformed upsetting blank in a mould, wherein the warm forming temperature is 340 minus or plus 10 DEG C; and 3, in the stage of low temperature reshaping, low temperature reshaping is carried out on a semi-formed blank obtained after the warm forming is finished in the mould again, wherein the low temperature reshaping temperature is 300 minus or plus 10 DEG C. By adopting the method provided by the invention, the problems that high temperature forming performance of a magnesium alloy is low and the magnesium alloy can not be formed at a low temperature are solved, coordination and uniform of forming and toughening on the magnesium are realized, and product performance is improved; and energy sources are saved, the process is simplified, and waste heat of homogenizing is utilized to directly carry out subsequent plastic deformation, thus the process is simplified, the thermal energy is effectively utilized, and the production cost is reduced.
Owner:ZHONGBEI UNIV

Heating apparatus for heating objects to be heated, heating method for heating the objects to be heated, and storage medium in which computer-readable program is stored

The present invention provides a heating apparatus for heating objects to be processed, which can detect a temperature of the objects to be processed with higher precision and accuracy, thereby to achieve higher precision temperature control. A heating apparatus 2 includes a processing vessel 8 configured to contain therein a plurality of objects W to be processed, the objects W including objects 58a to 58e to be processed for temperature measurement, each object 58a to 58e having each corresponding elastic wave element 60a to 60e, a heating means 10 adapted for heating the objects W to be processed, and a holding means 22 adapted to hold the objects W to be processed. To the processing vessel 8, a transmitter antenna 52 adapted to transmit an electric wave for measurement toward each elastic wave element 60a to 60e, and a receiver antenna 52 adapted to receive an electric wave having a frequency corresponding to the temperature and generated from each elastic wave element 60a to 60e are provided. A temperature analyzer 66 adapted to obtain the temperature of the wafers W to be processed for temperature measurement is connected with the receiver antenna 52, and a temperature control unit 64 adapted to control the heating means 10 is in turn connected with the temperature analyzer 66.
Owner:TOKYO ELECTRON LTD

Polyketone Fiber Paper, Polyketone Fiber Paper Core Material For Printed Wiring Board, And Printed Wiring Board

An aliphatic polyketone fiber paper comprising aliphatic polyketone fibers and a polyketone fiber paper core material for a printed wiring board are provided. The polyketone fiber paper and the core material have high strength and modulus of elasticity; excellent dimensional stability, chemical resistance, heat resistance, adhesiveness and electrical insulation; and low dielectricity and water absorbance, and are thin, porous, and uniform. A printed wiring board prepared from the core material having a low dielectric constant, dimensional stability, electrical insulation, and properties of being uniformly bored by laser punching is also provided. The aliphatic polyketone fiber paper and the core material for a printed wiring board comprises 1 to 100% by mass of aliphatic polyketone fibers which comprise the repeating unit of the below-mentioned formula (1), the fibers having an average fiber length of 0.5 to 10 mm, an average fiber diameter of 0.1 to 20 μm, a thickness of 5 to 200 μm, a void ratio of 30 to 90%, and a strength per unit mass of 100 MN / kg or more. Also provided is a single layer or multilayer printed wiring board which comprises a core material impregnated or coated with a polymer resin, a low dielectric polymer resin, or a polyphenylene ether-based epoxy resin.—CH2—CH2—CO—  (1)
Owner:ASAHI KASEI CHEM CORP
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