86results about How to "Short lead time" patented technology

The invention provides a ground test verification system of the subsonic speed cabin level thermal control design. The system comprises a test cabin body arranged inside an external flow field channel, wherein a sleeve structure is arranged inside the test cabin body, the sleeve structure is sequentially divided into an air inlet section, a tank lubricator section, an engine body section and a tailpipe section, the air inlet section and the tank lubricator section are blocked, a heating system is adopted for heating the tank lubricator section, the engine body section and the tailpipe sectionseparately, and heat sources for simulating the engine body, the tank lubricator and the tailpipe can be obtained; the system further comprises an air electric heating system connected with the external flow field channel and used for simulating the pneumatic condition at the outer wall of the test cabin body, and a measuring system. The system effectively simulates the pneumatic conditions and the environment inside the cabinet at the outer wall of the test cabin body, meanwhile, the system has the test capability of equipment working heating inside the cabin, high air and ground insistency is achieved, the low-cost advantage is achieved, and verification tests can be performed repeatedly.

The invention relates to steel used for controlled rolling and cooling offshore platform, and a production method thereof. The invention belongs to the technical field of low-alloy high-strength steel. The steel was produced through slab continuous casting and TMCP processes after steel making and refining. The components of the slab are as follows: 0.05 percent to 0.09 percent of C, 1.20 percentto 1.60 percent of Mn, 0.20 percent to 0.50 percent of Si, 0.03 percent to 0.05 percent of Nb, 0.010 percent to 0.020 percent of Ti, 0.03 percent to 0.06 percent of V, equal to or less than 0.005 percent of S, 0.020 percent to 0.040 percent of Als, equal to or less than 0.015 percent of P, and the rest are Fe and impurities. Molten steel which is smelt by the component is cast into the slab whichis 220mm to 250mm thick; the ingot is put into a slap heating furnace to be heated and rolled when being discharged. The initial billet temperature for rough rolling is 1060 DEG C to 1160 DEG C, the initial billet temperature for fine rolling is 840 DEG C to 940 DEG C, and the finishing temperature is 780 DEG C to 820 DEG C; the thickness of the rolled steel sheet is 10mm to 60mm. The starting cooling temperature is 760 DEG C to 810 DEG C; the finishing cooling temperature is 550 DEG C to 650 DEG C; the cooling speed is 10 DEG C / s to 17 DEG C / s. The production method has the advantages of simplified procedures and cost saving.

The invention discloses a ceramsite prepared by utilizing municipal waste incineration ash residue sludge and a preparation method thereof. The ceramsite is mainly prepared from the following solid raw materials in percentage by mass: 60 to 75% of municipal waste incineration ash residue sludge, 10 to 15% of fly ash, 10 to 30 parts of clay and 5 to 10% of expanded perlite. Besides the solid raw materials, water which accounts for 20 to 40% of the total mass of the solid raw materials is also added. The ceramsite disclosed by the invention is mainly prepared from the municipal waste incineration ash residue sludge, so that the wastes are turned into treasures and are used as resources. The prepared ceramsite meets a standard requirement on a lightweight aggregate and a testing method of the lightweight aggregate, is high in strength and is small in density; meanwhile, the preparation method disclosed by the invention is simple and convenient, the cost is low, the sources of raw materials are wide, and the period of a finished product is short.