56results about How to "Performance matching" patented technology

The invention provides a wrapping machine. A vertical installation plate is arranged at the lower half portion of the wrapping machine, a fixed box body is arranged at the upper half portion of the wrapping machine, the installation plate and the fixed box body are installed on a wrapping machine frame, and a wire plate is arranged at the lower portion of the wrapping machine. By means of the wrapping machine, performance of functional devices is matched and balanced, and strap moving of straps can be monitored and adjusted timely so that running speed of the wrapping machine can be increased, and working stability and wrapping quality of the wrapping machine can be guaranteed simultaneously.

The invention discloses an autoclaved aerated concrete plate repairing agent and belongs to the technical field of building materials. The autoclaved aerated concrete plate repairing agent is composed of, by mass, 40-60% of coal ash, 10-30% of gypsum, 5-15% of cement, 10-30% of sand, 0.01-2.0% of fiber, 0.01-1.05 of water retaining agent and 0.01-1.5% of setting retarder. The coal ash is coal ash for silicate building products meeting JC/T, the gypsum is semi-hydrated gypsum, and the cement is universal silicate cement meeting GB. By the autoclaved aerated concrete plate repairing agent, the problem that an existing repairing agent and an autoclaved aerated concrete plate have chromatic aberration and are low in binding strength and long in setting time.

The invention provides a PC alloy material and a preparation method thereof. The PC alloy material is prepared by mixing the following components in parts by weight: 100 parts of PC resin, 18-25 parts of aluminium coated modified magnesium oxide powder, 12-16 parts of surface modified aluminum oxide powder, 5-8 parts of rutile type titanium dioxide, 6-12 parts of modified graphene, 3-8 parts of a composite toughing agent, 3-6 parts of a composite flame-retardant agent, 8-20 parts of a compatilizer, 1.5-2.5 parts of a silane coupling agent, 0.5-1.5 parts of an oxidation inhibitor, 0.5-1.2 parts of an anti-dripping agent and 1.5-2 parts of an ultraviolet absorber. According to the PC alloy material, the PC resin and the various kinds of powder are fused; the powder is modified so that the powder can be fused in the PC resin fused body well; and the composite flame-retardant agent and the composite toughing agent are innovated, so that the prepared PC alloy material has good mechanical property, thermal property, optical property and electrical property, belongs to a brand-new PC alloy material, and has wide market popularization and application prospects.

The invention discloses a lightweight surface glass Ti metal plane reflector, comprising Ti metal substrate, special type glass layer and reflecting film, where the Ti metal substrate is of pure Ti (TA1,TA2 or TA3), or Ti alloy (TC1, TC2, TC3, TC4, or TC6), and is of a plate structure or of a cellular structure with lightweight design, and the Ti substrate surface is processed by machining or laser method and has roughness of 0.8-15 mu m, and the special type glass layer is 0.2-2.5mm thick and comprises SiO2 25-40wt%, PbO 50-70wt%,R2 O1-5wt%,RO 0-2wt%, and As2O3 0.2-0.5wt%, and has expansion coefficient of 80-90*10-7/deg.C; the reflecting film is a metal reflecting film vacuum-plated on the special type glass layer and having high reflection ratio. And its advantages: properties of special type glass and Ti metal match, its structure is simple, convenient to install and debug, and applied to optical systems in various fields of spaceflight, aviation, weapon, etc.

The invention discloses a hot-rolling work roll with micron-grade tungsten carbide enhancement layers. The hot-rolling work roll comprises a hot-rolling work roll body. The surface of the hot-rolling work roll body is provided with multiple sunken pipe-like bodies. The surface of the hot-rolling work roll body is provided with the micron-grade tungsten carbide enhancement layer. The inner surface of each pipe-like body is provided with one micron-grade tungsten carbide enhancement layer. According to the manufacturing method of the hot-rolling work roll, surface treatment is carried out on the hot-rolling work roll body; then laser drilling, acid pickling and ultrasonic cleaning are carried out; the cleaned hot-rolling work roll body with the sunken pipe-like bodies is subjected to carburizing in a vacuum carburizing furnace, and a composite body with the micron-grade tungsten carbide enhancement layers is obtained; finally, aftertreatment is carried out to obtain the hot-rolling work roll with the micron-grade tungsten carbide enhancement layers. The hot-rolling work roll solves the problem that roll surface spalling of an existing hot-rolling work roll occurs under the severe working condition, the overall mechanical property, the heat-resisting property and the wear-resisting property of the composite material are improved, and the manufacturing method is simple and easy to implement.

The invention discloses a method for testing time series data of a standard unit. The method comprises the following steps that: an external clock signal CLK_IN and an external clock selection signal OSC_sel are connected with a clock self-generating module respectively; an output end CLK_out of the clock self-generating module is connected with a clock end LOGIC_clk of a test logic circuit; a test stimulus TEST_in generated by a testability structure design module is connected with the test logic circuit; and the test logic circuit outputs result data TEST_out generated according to the test stimulus TEST_in to the testability structure design module so as to determine the working correctness of the test logic circuit. By the method, the limit working frequency of the circuit is tested by designing a self-generating frequency-modulated clock so as to capture a method of key routes.

The invention discloses a production technology for a 345MPa-level hot-rolled plate roll. The 345MPa-level hot-rolled plate roll comprises the components in percentage by weight: 0.14-0.18 percent of C, 0.20-0.30 percent of Si, 1.35-1.50 percent of Mn, less than or equal to 0.10 percent of S, less than or equal to 0.20 percent of P, 0.015-0.045 percent of Als, 0.015-0.030 percent of Ti and the balance of iron and residual impurities. The production technology for the 345MPa-level hot-rolled plate roll comprises liquid iron pretreatment, RH refining, LF refining, continuous casting, heating through a heating furnace, rolling and coiling. According to the production technology for the 345MPa-level hot-rolled plate roll, the content of sulfide inclusions in the Q345B plate roll is reduced, the metallographic structure of the plate roll is improved, the matching property of the intensity and the extending rate performance is improved, the influence, which is caused by fluctuation of rolling parameters, on the performance of the Q345B plate roll is alleviated, and the stability of the quality of a product is guaranteed.

The invention discloses a sectional travel characteristic pneumatic actuator device of a turbocharger, which includes an upper casing and a lower casing, wherein a rubber diaphragm is arranged between the upper and the lower casings, and divides a cavity between the upper and the lower casings into two cavities, namely a first cavity and a second cavity, that are not communicated; a diaphragm seat is arranged in a position inside the second cavity and near to the rubber diaphragm; an auxiliary core bar is connected onto the diaphragm seat; and springs with different elasticity coefficients are mounted on the auxiliary core bar. The sectional travel characteristic pneumatic actuator device can realize the matching of different travel characteristics, so that the performance of the supercharger is adjusted to the optimum as far as possible.

The invention discloses an Al-Fe-Cu-Mg-Ca alloy for an automotive wire, a preparation method thereof and a prepared automotive wiring harness, wherein the Al-Fe-Cu-Mg-Ca alloy for the automotive wire comprises the following components: 0.2-1.4wt% of Fe, 0.01-0.5wt% of Cu and Mg, 0.001-0.2wt% of Ca, and the balance of Al and inevitable impurities. The mechanical property and the tensile property of the alloy can be improved by adding an Fe element; the high-temperature creep resistance and the fatigue resistance of the alloy also can be obviously improved by the Fe; the strength and the high-temperature creep property of the alloy can be improved and the fatigue resistance can be improved by adding the Cu and Mg; the conductivity of the aluminum alloy can be improved by adding the Ca; meanwhile, the cutting property of the aluminum alloy can be improved, and removal of hydrogen in molten aluminum is facilitated.

The invention discloses a high-speed steel cold-extrusion male die provided with micron-grade tungsten carbide reinforcing layers; the high-speed steel cold-extrusion male die includes a high-speed steel cold-extrusion male die body; the surface of the male die body is provided with a plurality of sunken tubular bodies; the surface of the male die body and the inner surfaces of the tubular bodies are each provided with the micron-grade tungsten carbide reinforcing layer. A preparation method for the high-speed steel cold-extrusion male die comprises the steps: carrying out surface treatment of the male die body; then carrying out laser drilling, pickling, and carrying out ultrasonic cleaning; carburizing the obtained cleaned male die body provided with the sunken tubular bodies in a vacuum carburizing furnace, to obtain a composite body provided with the micron-grade tungsten carbide reinforcing layers; and finally, post-treating the composite body to obtain the high-speed steel cold-extrusion male die provided with the micron-grade tungsten carbide reinforcing layers. The problems that conventional high-speed steel cold-extrusion male dies are easy to permanently deform, rupture and damage are solved, the whole mechanical properties and heat resistance and abrasion resistance properties of the composite material are improved, and the preparation method is simple and is easy to implement.

The invention discloses high chrome alloy steel with a chromium carbide reinforced layer. The high chrome alloy steel with the chromium carbide reinforced layer comprises a matrix. The surface of the matrix is provided with a plurality of sunken tube-shaped bodies. The surface of the matrix and the inner surfaces of the tube-shaped bodies are both provided with the chromium carbide reinforced layers. The matrix is composed of the high chrome alloy steel. A preparation method of the abovementioned composite material comprises the following steps of (1) conducting surface treatment on the matrix; (2) conducting laser drilling, acid pickling and ultrasonic cleaning; (3) carburizing the obtained cleaned matrix with the sunken tube-shaped bodies in a vacuum carburizing furnace to obtain a complex with the micron-grade chromium carbide reinforced layer; and finally (4) conducting aftertreatment to obtain the high chrome alloy steel with the chromium carbide reinforced layer. According to the high chrome alloy steel and the method, the problems that in the prior chromium carbide reinforced steel matrix composite material, chromium carbide particles are easy to fall off and uncontrollable of size and distributing mode can be solved, the overall mechanical properties, the heat resistance and the wear resistance of the composite material can be improved and the preparation method is simple and easy to implement.

The invention discloses an Al-Fe-Cu-Mg-Sb aluminum alloy for an automotive wire, a manufacturing method of the aluminum alloy, and a wiring harness made of the aluminum alloy. The Al-Fe-Cu-Mg-Sb aluminum alloy for the automotive wire comprises the following ingredients in percentage by weight: 0.2-1.4wt% of Fe, 0.01-0.5wt% of Cu and Mg, 0.001-0.2wt% of Sb, and the balance of Al and inevitable impurities. The mechanical strength and the tensile properties of the alloy can be improved by adding an Fe element; the high temperature creep resistance also can be obviously improved by Fe; the anti-fatigue performance of the alloy is improved; the strength and the high-temperature creep properties of the alloy can be improved by adding Cu and Mg; the anti-fatigue performance can be improved; the yield limit of the alloy can be improved by adding Sb; meanwhile, the alloy has superplasticity, so as to be drawn into a very thin alloy wire.

The invention discloses a sectional travel characteristic pneumatic actuator of a turbocharger. The sectional travel characteristic pneumatic actuator comprises an upper housing and a lower housing, wherein a rubber diaphragm is arranged between the upper housing and the lower housing; a cavity between the upper housing and the lower housing is divided into two hollow chambers through the rubber diaphragm, and the two hollow chambers are respectively a first hollow chamber and a second hollow chamber which are not intercommunicated; the second hollow chamber is internally provided with a diaphragm seat at a position close to the rubber diaphragm; a mandrel is connected to the diaphragm seat; two springs with different elastic coefficient are arranged on the mandrel, which are respectively an internal spring and an external spring; the external spring is sleeved outside the internal spring; and an internal spring locking mechanism is arranged on the mandrel. With the adoption of the sectional travel characteristic pneumatic actuator of the turbocharger provided by the invention, various travel characteristics can be matched, therefore, the performance of a turbocharger can be adjusted to achieve the best state as far as possible.