30results about How to "Avoid technical risks" patented technology

The invention belongs to the field of titanium-based alloys, and specifically relates to a novel heat-resistant titanium alloy and its processing and manufacturing method and application, including components such as alloy composition, smelting, thermal processing and heat treatment. The composition (weight percentage) of said alloy is Al: 5.4%~6.3%; Sn: 3.0%~5.0%; Zr: 2.5%~6.4%, Mo: 0.0~0.96%, Si: 0.25%~0.5%, Nb : 0.2%~0.5%, Ta: 0.3%~3.4%, W: 0.2%~1.6%, C: 0.0~0.07%, O≤0.17%, Fe≤0.03%, the balance is Ti and unavoidable impurity elements . The alloy of the present invention can obtain different matchings of tensile strength and plasticity, durability and creep strength and thermal stability through different thermal processing and heat treatment process combinations, and can be used to make blades, discs and other parts of high-temperature parts of advanced aero-engines, It can be used for a long time in the range of 600-650°C; it can also be used to make high-temperature resistant structural parts such as aerospace vehicle skins, and it can be used for a short time at about 700°C; it can also be used as a material for high-temperature and corrosion-resistant valves for automobiles and boilers.

The invention belongs to the field of titanium-based alloy and particularly relates to a preparation method for a high-temperature titanium alloy bar. The preparation method comprises the steps that aprepared Ti55 titanium alloy cast ingot is heated to 1150 DEG C-1200 DEG C, and then cogging forging is conducted in a beta phase region through a fast forging machine or a hydraulic press; and thenthe Ti55 titanium alloy cast ingot is heated to 1050 DEG C-1100 DEG C, upsetting and drawing-out forging are conducted repeatedly through the fast forging machine or the hydraulic press, then the forged blank is heated to Tbeta-100 DEG C-Tbeta-20 DEG C (Tbeta is Ti55 titanium alloy alpha+beta / beta phase transformation temperature), upsetting and drawing-out forging are conducted repeatedly throughthe fast forging machine or the hydraulic press till the needed size is obtained, and the titanium alloy bar of which the macrostructure is fuzzy crystals and the microstructure is uniform is obtained. After subjected to solution+aging heat treatment, the Ti55 titanium alloy bar prepared through the preparation method is good in strength and toughness match, good in endurance and creep strength and heat stability match, and high in fracture toughness. Operation is convenient, process controllability is high, and the prepared Ti55 titanium alloy bar is good in batch stability.

A safety conversion method and translator for interlocking data for formal verification, two translators with the same function are developed by using different programming methods and programming languages, and the input file of the translator at least contains: The interlocking information table, equipment interface information table, station description data and interlocking Boolean logic data are compared, and the consistency of the output files of the two translators is compared to realize the detection of process failure, thereby ensuring the safe conversion of data. The invention does not need special formal development for each station, reduces technical cost and design risk, has high safety, good compatibility, strong versatility and wide application range.

The invention relates to a system and method for expanding the model driving development capability by applying a plug-in. In the system and the method, a'model and plug-in' combined mode is provided to describe and establish a software system, firstly a model designing tool is used for establishing basic model description of the software system and then establishing a plurality of reusable plug-pin model for further describing a basic model object, the plug-in model can be expanded randomly on various basic model objects, and the plug-in can complete a software function with any complexity, therefore, the expansion of the model driving development capability is realized. By utilizing the invention, the technical problems of the existing model driving development method that because a fixed model is adopted, the describing capability of complex service system is poor, and the software system with the model driving development can not be established, expanded and maintained visually and dynamically under the operating state and the like are solved. The system developed by using the method has the advantages that the development complexity degree is low, the development speed is fast, the reusable degree of technology is high, the expansion is flexible, the maintenance is convenient and the reliability is high.

The invention provides a numerical simulation method for the atomization of a suspension material to form a film, and obtains the relationship between the thickness of the liquid film and each parameter by means of dimension analysis and linear least square regression analysis. The liquid jet continuously impinges on the atomizing disk, the liquid jet spreads on the surface of the atomizing disk to form a film, the liquid film leaves the atomizing disk in a tangential direction, and breaks up to form ligaments or droplets. The computational fluid dynamics software FLUENT is used to numerically calculate the process, which avoids the high cost and waste of raw materials caused by experiments or blind design, and has certain guiding significance for the atomization mechanism of the feed liquid.

The invention discloses an automatic controllable general test lunch and control system. The system comprises a remote control console, a test lunch and control host, a zero-second forwarding box andan AC / DC power supply case; the remote control console and the test lunch and control host are connected through a cable, and are in network communication through a fiber optical transceiver or a network switch; the test lunch and control host comprises a computer board, an I / O board, an AD acquisition board, a communication board and an interface backplane; the computer board, the I / O board, theAD acquisition board and the communication board are plugged in the interface backplane through printed board connectors; the computer board comprises a DSP, a clock circuit and a memory, wherein theclock circuit and the memory are connected with the DSP; the DSP is used for sending an on-off output signal to the I / O board, receiving on-off input data fed back by the I / O board and analog quantitydata fed back by the AD acquisition board and performing parsing to realize output control and condition monitoring of an aircraft. Through modular function board cards and standardized interfaces and buses between the board cards, the integration and generality of the system are improved, and the maintenance cost is saved.

The invention discloses a method for realizing intersystem Single Sign-On to solve the big difficulties of the realization technology and the difficult management existed in the intersystem Single Sign-On in the prior art. The method includes: a first website system preserving a user ID mapping relation in the first website system and a second website system, the second website system preserving the user ID mapping relation in the second website system and the first website system; for the first and the second website systems, any one website system obtaining ID information of the system user logged in the website in another website system and generating identity based signature according to the user ID mapping relation preserved in the website system, and carrying the identity based signature in the request message of the user which requests to log in another website system, and another website system verifying the user according to the identity based signature. The invention also discloses a verification system.

The invention discloses a method for preparing a positive electrode of a power type lithium thionyl chloride battery, which comprises the following steps: 1) mixing materials, 2) surfing the net, 3) fiberizing treatment, 4) stretching fibers interlacedly, 5) cutting and leaving blank , wherein, in the fiber interlaced stretching step, a pair of briquetting blocks or rollers with symmetrical fine wavy patterns on the surface are used to press or roll multiple times in different directions and different positions on both sides of the positive nickel expanded mesh, so that the positive nickel expanded mesh can be filled The adhesive inside the cladding material forms the overall fiber chain network adhesion; and then the positive nickel expanded mesh is rolled and leveled with a smooth pressure roller. The invention does not require secondary pasting, and can solve the problems of powder dropping, shedding, flanging and the like of the positive electrode, and simultaneously improves the capacity and discharge voltage platform of the battery.

The invention discloses a two-stage orbit-entry horizontally separated aircraft, comprising a booster-level aircraft and an orbital-level aircraft, the orbital-level aircraft is attached to the upper surface of the booster-level aircraft; the anti-shock wave impact method includes An anti-shock device is installed at the end of the aircraft; when the orbital-level aircraft and the booster-level aircraft are in a two-stage horizontal separation environment, the orbital-level aircraft accelerates and separates along the surface of the booster-level aircraft under the thrust of its own engine; the anti-shock device is in orbit In the process of the horizontal separation of the booster-stage aircraft and the booster-stage aircraft, the leading-edge bow shock wave formed by the leading edge end of the orbital-stage aircraft first passes through, and the leading-edge bow-shaped shock wave is gradually transformed into an anti-shock The conical shock wave formed by the device is then transformed into a curved shock wave when the anti-shock device fully protrudes from the leading edge end of the booster-stage vehicle until the orbital-stage vehicle and the booster-stage vehicle are completely horizontal separation.