Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

1426results about How to "Improve craftsmanship" patented technology

Cigarette working procedure quality overall evaluation system and method based on gray correlation analysis

ActiveCN101414183ASolve the ambiguous situation of process capability evaluationFunctional job improvementTotal factory controlProgramme total factory controlGrey correlation analysisProcess quality
The invention discloses a comprehensive cigarette process quality evaluation system based on grey correlation analysis and a method thereof, aims at overcoming the disadvantage that the existing single process evaluation method can not comprehensively evaluate the overall process quality of the cigarette process, and changing the situation of fuzzy process capability evaluation of a whole line at present. The evaluation system and the method thereof help comprehensively evaluates the quality of a plurality of processes, and can effectively grasp comprehensive situation of the process quality so as to provide basis for the continuous improvement in the process quality, and provide assurance for quality improvement of cigarette products. The system and the method combine the single-process quality evaluation method and the grey correlation analysis method. The method comprises the following steps: firstly, computing process capability indexes of various process parameters; then, comprehensively evaluating a Cpk value by the grey correlation method; finally, obtaining a comprehensive evaluation result which is taken as a process quality rank of various evaluated objects. Production practice can be effectively directed by analyzing the Cpk and the process quality ranking result.
Owner:CHINA TOBACCO SHANDONG IND +1

Rare earth thick film circuit electrical heating element based on aluminum nitride minicrystal ceramic substrates and its preparation technique

The invention provides a controllable electrical heating element of rare-earth thick-film circuit based on aluminum nitride microcrystal ceramic base plate and manufacturing method thereof, comprising base pieces and serial electronic sizing agents which are manufactured on the base pieces. The serial electronic sizing agents comprise package sizing agent and electronic sizing agent, and are all composed of three parts including a functional phase, an inorganic bonding phase and an organic carrier. The serial electronic sizing agents further comprise rare-earth resistance sizing agent. The base piece is ALN aluminum nitride microcrystal ceramic base piece. The serial electronic sizing agents are manufactured on the base piece by means of thick film circuit. The invention synchronously further provides formulations of ALN aluminum nitride microcrystal ceramic base piece, rare-earth envelopment sizing agent, rare-earth resistance sizing agent and rare-earth electrode sizing agent. The invention is environment-friendly, safe and reliable by providing with equal and controllable heating temperature field, large power, high power density, high efficiency of heat conduction, high speed of response, high efficiency for saving energy, strong capability of thermal-shock resistance, small volume and wide application range.
Owner:GUANGDONGSHENG YUCHEN ELECTRONICS & TECH CO LTD

Silicon slice fixing part

The invention discloses a silicon wafer fixing component, which comprises a plurality of vacuum absorption holes for absorbing silicon wafers, vacuum through holes for communicating the vacuum absorption holes and a plurality of concentric annular grooves for supporting the silicon wafer. The annular groove comprises a vacuum groove and an atmosphere groove arranged at interval in turn, the vacuum absorption hole is positioned in the vacuum groove. The silicon wafer fixing component is also provided with a technics hole isolating the vacuum through hole, the vacuum through hole is isolated after the technics hole is filled, when the technics hole internal side is communicated with the gas controlling device, the technics hole can be used for absorbing No. eight silicon wafer; when both the internal and external sides of the technical hole are communicated, the technics hole can be used for absorbing No. 12 silicon wafer. The atmosphere groove is also internally provided with an atmosphere through hole, the atmosphere through hole can discharge atmosphere between the silicon wafer and the absorption surface, so as to reduce the deformation of the silicon wafer. In addition, by considering the processing manufacturability, the annular groove can be designed into a trapezoid to reduce the processing deformation. The silicon fixing component adopts silicon carbide precision ceramic as the material, the technics performance of the silicon fixing component is improved and the service life is prolonged.
Owner:SHANGHAI MICRO ELECTRONICS EQUIP (GRP) CO LTD +1

Automatic impedance matching method for plasma reaction chamber

ActiveCN104377106AAutomates the impedance matching processImprove craftsmanshipElectric discharge tubesPower flowCoaxial cable
The invention relates to an automatic impedance matching method for a plasma reaction chamber. The method comprises the following steps that (a) an initial impedance value of an adjustable-impedance element is set; (b) whether reflection power measured on a coaxial cable is larger than a first threshold value or not is judged; if yes, the step (c) is performed, and if not, the step (b) is performed circularly; (c) whether the frequency of an RF power source is stable or not is judged; if yes, the step (d) is performed, and if not, the step (c) is performed circularly; (d) whether the reflection power measured on the coaxial cable is larger than a second threshold valve or not is judged; if yes, the step (e) is performed, and if not, the step (b) continues to be performed; (e) the impedance value of the adjustable-impedance element is adjusted through an adjusting step length, wherein the phase difference alpha between the adjusting step length and to-earth voltage and current and/or the value of V/Icosinealpha-50 are both positive or negative, and the second threshold value is larger than the first threshold value. The accurate impedance adjusting step length is provided for the adjustable-impedance element in the impedance matching circuit, and matching efficiency is improved.
Owner:ADVANCED MICRO FAB EQUIP INC CHINA

Alloy powder block used for built-up welding

InactiveCN101053931ASpeed up meltingSolve the problem that it is difficult to melt and easy to be blown away by the plasma flow force of the arcArc welding apparatusHigh frequency current welding apparatusPlasma jetAdhesive
The present invention discloses the alloy pulverescent used for builtup weld. The present invention is characterized in that the alloy pulverescent is produced by metal, iron alloy powder, adhesive and plasticizer, wherein the weight ratio of component is that metal and iron alloy powder : adhesive : plasticizer = 100 : 5~15 : 0~8; the alloy pulverescent is discretionary geometrical body, wherein the size, length and surface shape of the alloy pulverescent can be discretionarily determined according to the requirement of the surface which is to be builtup welded, and the splicing margina thickness of the alloy pulverescent is 0~0.1mm when the alloy pulverescent is arranged on the surface which is to be builtup welded. In the present invention, by designing the cross section geometry of the alloy pulverescent, the electric arc can more easily pass through the alloy pulverescent which is difficult to be melted so as to melt the base metal, and the melting of the base metal accelerates the melting of the alloy pulverescent, thereby the problem of that the alloy pulverescent is difficult to be melted and is easy to be blown about by the plasma jet of the electric arc can be solved, and the production efficiency is greatly improved.
Owner:SHANDONG UNIV

Injection mould with rapidly-replaced mould cores

The invention discloses an injection mould with rapidly-replaced mould cores. The injection mould is composed of a movable mould and a stationary mould, wherein a main body of the movable mould is composed of a movable mould base and a movable mould core movably arranged on the movable mould base; a main body of the stationary mould is composed of a stationary mould base and a stationary mould core movably arranged on the stationary mould base; the butt joint faces of the movable mould base and the stationary mould base are respectively provided with a mould core mounting sliding chute which horizontally extends from front to back; at least the front ends of the mould core mounting sliding chutes are provided with plug-in mounting holes for mounting or dismounting the mould cores; the mould cores are provided with tracks matched with the mould core mounting sliding chutes so as to move along the mould core mounting sliding chutes; and the mould cores are inserted to or dismounted from the mould core mounting sliding chutes on the mould bases through the plug-in mounting holes, thus the mould cores are replaced. According to the invention, only one set of mould base needs to be manufactured to be matched with the mould cores of different cavities which are manufactured according to spline standards tested based on different performance indexes; the mould replacing operation is easier and more convenient than that of the prior art, so that the mould replacing time is greatly shortened; and the manufacturing cost of various test spline moulds can also be greatly reduced.
Owner:广州现代塑料有限公司

Space robot gripper mechanism

The invention discloses a space robot gripper mechanism, namely an end effector of a mechanical arm, which solves the problems of small gripping range, non-unique locking position, high probability of losing a target during griping and the like existing in the conventional gripper mechanism, greatly simplifies the entire mechanism and also improves the manufacturability. In the mechanism, a palm surface 1, an upper bearing seat 3, a lower bearing seat 4 and a box bottom 7 form a basic frame of the entire mechanism; two finger shafts 9 are arranged in bearing holes between the palm surface 1 and the upper bearing seat 3; two fingers 2 and 5 are fixedly connected with the finger shafts 9; the shaft ends of the two finger shafts are provided with gears 19; a motor 11 and a brake shaft 22 are arranged in through holes between the upper bearing seat 3 and the lower bearing seat 4; the shaft ends of the brake shaft 22 and the motor 11 are provided with gears 21; the gripper box bottom 7 is connected with the bearing seats and an external mechanism through flanges; and a box wall 6 is interconnected with the palm surface 1 and the box bottom 7 to package the entire gripper mechanism. The mechanism has the advantages of compact design, small volume, easiness of machining, convenience in assembly and disassembly and the like.
Owner:BEIJING UNIV OF POSTS & TELECOMM
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products