73 results about "Energy engineering" patented technology

The invention relates to a highly-resistant-to-color-changing gold anti-corrosion copper alloy and a panel preparing method thereof. The alloy is formed by the chemical components as follows: 77-79wt (weight) percent of Cu, 2.0-2.3 wt percent of Al, 0.4-0.6 wt percent of Ni, 0.005-0.01 wt percent of B, 0.05-0.15 wt percent of Ce, 0.2-0.5 wt percent of Si, and the balance of Zn and inevitable impurities. The preparing process comprises the steps of 1, smelting, 2, semi-continuous casting, 3 milling, 4, hot rolling, 5 milling, 6, cold rolling, 7, intermediate annealing, 8, pickling, 9, cold finish rolling, 10, finish product annealing and the like. The highly-resistant-to-color-changing gold anti-corrosion copper alloy is reasonable in component, simple in production process, low in production cost, excellent in casting and processing properties, suitable for performing batch production by using a semi-continuous casting process, and compared with the existing copper alloy such as HAl77-2B, HSn70-1A, HSn72-1-1, the alloy produced by the method is more close to gold in color, better in color-changing-resistant and anti-corrosion properties, and is applied in the fields such as decorating, energy engineering and marine engineering.

The invention discloses a test system and a test method for testing type-I fracture toughness of a deep rock mass. The test system comprises a semicircular disc rock specimen with an intermediate slit, a loading system for applying an axial pressure to the semicircular disc rock specimen, a vacuum pressure chamber for applying a high-temperature confining pressure to the semicircular disc rock specimen, a vacuum pump for exhausting gas from the vacuum pressure chamber, and an inert gas system for injecting inert gas into the vacuum pressure chamber, wherein the semicircular disc rock specimenwith the intermediate slit is placed in the vacuum pressure chamber; the loading system for applying the axial pressure stretches into the vacuum pressure chamber and acts on the semicircular disc rock specimen with the intermediate slit; two supporting pads are arranged below the semicircular disc rock specimen with the intermediate slit; the two supporting pads are arranged on the two sides of the slit of the semicircular disc rock specimen with the intermediate slit respectively; the vacuum pressure chamber is connected with the inert gas system; a heating device is arranged inside the vacuum pressure chamber. Compared with the prior art, the test system and the test method provided by the invention have the advantages as follows: a real reservoir environment can be simulated, the fracture toughness of the rock can be accurately determinated, and a support is provided for development of deep energy engineering.

The invention belongs to the technical field of civil engineering, water conservancy and hydropower engineering and new energy engineering, and particularly relates to an orthogonal stress state controllable direct shear test device and test method. The device is formed by organically combining a circular sliding mechanism, a horizontal loading device, a fixing device, a vertical loading assembly,a confining pressure control device and a permeable mechanism, wherein the sliding mechanism is provided with an upper shearing box and a lower shearing box and is connected to the lower part of thelower shearing box. According to the actual stress state of the rock-soil body, the normal pressure and the lateral confining pressure bidirectional stress of the test sample are regulated and controlled, so that the test sample is subjected to drainage consolidation in an original occurrence stress state. The problem that confining pressure regulation cannot be considered in a traditional directshear test device and method is solved, and the real stress state of the sample is restored as much as possible. According to the method, the lateral confining pressure of the sample can be dynamically regulated and controlled, the shear strength parameter of the rock-soil body can be obtained more truly, and more detailed and accurate basis is provided for engineering safety and stability analysis.