42results about How to "Overcome processing difficulties" patented technology

The invention discloses a bolt faying face supersonic wave detection apparatus and a data processing method thereof. The apparatus comprises a mobile platform which is composed of a mobile support and a micro-motion measuring mechanism, and is suitable for measurement of any large-scale bolt faying face. An accurate angular displacement bench in the mobile platform can adjust an angle of an ultrasonic transducer accurately, and detection precision and efficiency are raised. According to the data processing method, a problem of image processing difficulty caused by a measuring result when detecting the bolt faying face is overcome, and a problem of an unsatisfactory image restoration result by employing a traditional Wiener filtering method is solved. According to the method, lateral resolution of an ultrasonic c scanning image is greatly raised.

The invention relates to a polyformaldehyde composite material, comprising 70-80 weight portions of polyformaldehyde resin, 10-15 weight portions of flexibilizer, 2-2.5 weight portions of silicone oil, 0.3-0.4 weight portions of antioxidant and 8-15 weight portions of wear-resisting agent. The polyformaldehyde composite material has the advantages of excellent wear resistance, low temperature resistance, no noise and the like. According to the invention, by adding teflon as the wear-resisting agent in molecules, the wear resistance of the product is good; by using the thermoplastic polyurethane as the flexibilizer, the low temperature toughness of the product is effectively improved at the same time the wear resistance and mechanical strength of the product are guaranteed. In addition, the invention further relates to a preparation method of the polyformaldehyde composite material.

The invention discloses a finish machining process for cold-punching a special-shaped square hole. The square hole is roughly machined, an amount of 0.5mm is left on each side of a material, a square hole-punching punch die is used for first punching off 0.3mm and then finish-punching off 0.2mm on a punch, and thereby a finished product is machined.

The invention discloses a preparation method of yttrium aluminum garnet crystal film doped with metal ions. The preparation method comprises the following steps: pressing raw material powders of yttrium aluminum garnets doped with metal ions into a green body used for a deposition coating film according to proportion, adopting electron beam evaporation-deposition process, focusing and injecting electron beams generated by an electron gun into the green body, controlling the electron beams to automatically scan and uniformly heat the pre-melted green body, primarily sintering the green body for crystallizing so as to obtain porcelain, then increasing the power of the electron gun so as to further heat the green body, thus melting, evaporating and depositing the green body on a lining substrate so as to form a film, then annealing the film under vacuum or protection atmosphere, and finally obtaining the yttrium aluminum garnet crystal film doped with metal ions, which is crystallized effectively. The method can realize the high-quality, low-cost and large-area batch production of the yttrium aluminum garnet crystal film doped with metal ions, the prepared yttrium aluminum garnet crystal film doped with metal ions can be used as novel light wave guide materials, laser work medium and functional film materials.

The invention discloses a method for processing a feeding gear gauge, and the gauge comprises a feeding gear gauge body which is composed of a first workpiece, a second workpiece, a third workpiece and a fourth workpiece. The gauge is used for measuring the sizes of feeding gear parts, and the measuring principle thereof is that: a special gauge H/PJ17 01-136 L-2 penetrates holes with the size of phi 5.5 until two holes are passed through, the feeding gear parts are positioned by the gauges H/PJ17 01-136 L-2 and H/PJ17 01-136 L-7B, and then the special gauge H/PJ1701-136 L-22 is used for detecting whether the shape of the feeding gear is qualified. If the difference between the part shape and the gauge shape is within 0.2mm, the parts are qualified; if the difference is beyond 0.2mm, the parts are unqualified.

A method for preparing planar optical waveguide of garnet doped with Yb-Gd-Ga applies pulse laser depositing method to fuse out surface layer molecule of Yb3+: GGG multicrystal target material and to generate Yb3+:GGG planar optical waveguide on heated pure YAG substrate. A Yb3+: GGG planar optical waveguide on the requirement in micron grade cand be growed up by utilizing the method.

The invention provides a coal processing method and system. The processing method at least comprises the steps of coal carbonization or coal gasification, coal tar hydrocracking, aromatics combination, light dydrocarbon aromatization, propane dehydrogenation, polypropylene preparation and the like. Main products include diesel oil, p-xylene, benzene, heavy aromatics, polypropylene and the like. The system at least comprises a coal carbonization or coal gasification device, a coal tar hydrocracking device, an aromatics combination device, a light dydrocarbon aromatization device, a propane dehydrogenation device, a polypropylene preparation device and the like. By means of the processing method and system, high additional value products such as diesel oil, gasoline blending components, aromatics and alkene can be produced, the problem that coal tar cannot be processed easily is solved, and the processing method and system with coal, oil, aromatics and alkene integrated are achieved.

The invention relates to the field of polyvinyl chloride, particularly to a scratch-resistant PVC film and a preparation method thereof. The PVC film is prepared from the following raw materials in parts by weight: 100 parts of PVC powder, 2-8 parts of a scratch-resistant modifier, 0.2-1.0 part of a slipping processing aid, 5-15 parts of a plasticizer, 0.8-2 part of a wear-resistant agent, 2-4 parts of a stabilizer, 2-10 parts of an impact modifier, 0.1-0.5 part of an external lubricant, 0.1-0.5 part of a lubricant and 0.8-2.5 parts of an aid. According to the invention, by adding the wear-resistant agent, the scratch-resistant effect is achieved, the precipitation of the rubber flower roller is reduced, and the processing technology difficulty caused by adding the wear-resistant agent inthe prior art is overcome.

A kind of magnetron sputtering method to prepare low-temperature phase barium metaborate single crystal thin film, which is characterized in that the β-BBO ceramic target or β-BBO single crystal target is selected, and the magnetron sputtering method is used on the α-BBO single crystal substrate A layer of β-BBO/α-BBO composite single crystal thin film is formed on it. The method of the invention overcomes the problem of difficult processing of growing body single crystals in the prior art, and greatly saves materials. The invention is suitable for mass production, can meet the market demand of rapid development of laser technology, and has good economic benefits.

The invention relates to a milling machine tool device for processing fire grates. The device comprises a milling device, and a work table group arranged on one side of the milling device, wherein the milling device comprises a milling head base; a first sliding platform is arranged above the milling head base through a first sliding screw rod in a transmission manner; a power device and a milling cutter disk are arranged on the first sliding platform and are in transmission through a gear; the work table group comprises a first work table and a second work table, wherein the first work table is arranged above a platform bracket through a second sliding screw rod in a transmission manner; the second work table is fixedly arranged above a cement boss through a bolt and the upper surface of the second work table and the upper surface of the first work table are on the same level surface; a plurality of T-shaped grooves for tooling grate processing parts are respectively formed in the upper surfaces of the first work table and the second work table. The milling machine tool device disclosed by the invention improves the production efficiency, and effectively solves the problems of high production cost and long production cycle of equipment.

The invention discloses a method and a device for 3D printing of a thermosetting material or a photosensitive material, which are used for 3D printing of thermosetting resin and comprise a thermosetting resin 3D printing device and a 3D printing material laser thermocuring method. Resin, a curing agent and other auxiliaries are evenly mixed through the screw in the charging barrel and conveyed to the front-end printer nozzle to be sprayed out, then the resin on the working platform is cured and formed through light beams, the screw and the light beams synchronously and accurately move under the control of a computer, printing is conducted layer by layer, and a thermosetting 3D printed part is formed. The thermosetting resin is used as a raw material for 3D printing, the deep development of the 3D printing technology is promoted, and the application of the thermosetting resin in 3D printed parts is expanded. According to the method, the thermal degradation risk and loss caused by repeated melting of resin in existing 3D printing technologies such as FDM are avoided, the technological method for preparing the thermosetting material 3D printed part under a common spray head is achieved, and the performance of the 3D printed part is improved.

The invention provides a mobile phone front shell, a machining method thereof, a mobile phone and a machine tool. The machining method comprises the following steps: performing injection molding on asteel plate and plastic to obtain the mobile phone front shell with a plastic area; fixing the mobile phone front shell onto a CNC drilling and machining machine tool; and starting up the CNC drillingand machining machine tool to enable a tool on the CNC drilling and machining machine tool to form a light guide hole in the plastic area. Through the technical scheme, the problem that a light guidehole of a conventional mobile phone front shell is difficult to machine on a die is solved, a pillar on the die has low probability of being broken by punching, volume production of the mobile phonefront shell can be realized, the production cost is lowered, and the machining efficiency is improved.

The invention provides a heavy oil processing method and system. The method at least comprises the following steps: (1) heavy oil cracking and gasification: heavy oil is subjected to heavy oil cracking and gasification, and at least cracking gas, synthesis gas and cracking oil are obtained; (2) cracking oil hydrocracking: carrying out hydrocracking on the cracking oil obtained in the step (1) to obtain a product containing dry gas, low-fraction gas, light naphtha, heavy naphtha and diesel oil; (3) aromatic hydrocarbon combination: by taking the heavy naphtha obtained in the step (2) as a raw material, performing aromatic hydrocarbon combination to obtain a product containing hydrogen, benzene and p-xylene and byproducts containing liquefied petroleum gas, pentane, raffinate oil and heavy aromatic hydrocarbon; (4) methanol synthesis: taking part of pyrolysis gas and synthesis gas obtained in the step (1) as raw materials, and performing methanol synthesis to obtain a methanol product; and (5) ethanol synthesis: taking the residual pyrolysis gas and synthesis gas obtained in the step (1) as raw materials, and carrying out ethanol synthesis to obtain an ethanol product.