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56results about How to "Stay longer" patented technology

Epoxy resin curing material system for high-temperature mixed epoxy asphalt and preparation method thereof

The invention provides an epoxy resin curing material system for high-temperature mixed epoxy asphalt and a preparation method thereof. The preparation method comprises the following steps: firstly, mixing epoxy resin with a diluting agent to obtain a resin ingredient; secondly, uniformly mixing a curing agent, a toughening agent and a compatibilizer to obtain a curing ingredient; and finally, uniformly mixing the resin ingredient with the curing ingredient to obtain the epoxy resin curing material system. The epoxy resin curing material system and asphalt have a long holding time at a high temperature, and the viscosity of the epoxy resin curing material system and the asphalt can be maintained to be lower than 600mPa.s in 180 minutes at 170 DEG C; quick curing can be achieved under the condition of room temperature, and a curing degree of over 90 percent can be achieved in 1-2 days after the epoxy resin curing material system and asphalt are mixed; an epoxy asphalt material prepared by the epoxy resin curing material system has very high strength, and a casting body of the epoxy asphalt material at 23 DEG C has tensile strength of over 3MPa and elongation at break of over 300 percent, and has good toughness; and the concrete of the epoxy asphalt material has Marshall strength of over 70kN, and has high strength.
Owner:CHANGAN UNIV

Heat shield assembly

The invention relates a heat shield assembly (1), comprising at least two neighboring heat shields (2a, 2b), said shields being a first heat shield (2a) and a second heat shield (2b), each having a hot gas side (3a, 3b) and an opposing cold gas side (4a, 4b), wherein the heat shields (2a, 2b) have a neighboring side wall (6a, 6b) that connects the hot gas side (3a, 3b) and the cold gas side (4a, 4b), wherein a respective engagement pocket (5a, 5b), which is spaced from the hot gas side (3a, 3b) and the cold gas side (4a, 4b), is provided in the respective neighboring side wall (6a, 6b), wherein adjacent heat shields (2a, 2b) overlap one another and the one side wall (6a) of the first heat shield (3a) has a protrusion extending from the engagement pocket (5a) in the direction of the hot gas side (3a), wherein the protrusion has at least one protrusion side (7a); and a protrusion front edge (8a) connecting thereto, and wherein the second heat shield (2b) has a cutout that is essentially complementary to the protrusion and extending from the engagement pocket (5b) in the direction of the hot gas side (3b), wherein the cutout has at least one cutout side (7b) and a cutout rear edge (8b) connecting thereto, which are arranged such that, extending from the engagement pocket (5a, 5b), a gap (9) that is open toward the hot gas side (3a, 3b) is formed between the cutout and the protrusion, and wherein both the protrusion side (7a) and the cutout side (7b) have a gradient relative to the respective cold gas side (4a, 4b).
Owner:SIEMENS AG

Seafood temporary-culture water circulation purification system and seafood temporary-culture machine using same

The invention discloses a seafood temporary-culture water circulation purification system and a seafood temporary-culture machine using the same. The system comprises culture pools, wherein the plurality of culture pools are arranged in parallel; a water inlet of each culture pool individually communicates with a corresponding refrigeration water tank, the plurality of refrigeration water tanks are arranged in parallel, and the number of the refrigeration water tanks corresponds to the number of the culture pools; and a water outlet of each culture pool individually communicates with a corresponding filtration box, the plurality of filtration boxes are arranged in parallel, and the number of the filtration boxes corresponds to the number of the culture pools. Refrigerants are introduced tothe refrigeration water tanks to cool culture waters, a plurality of cold culture waters in different temperature zones are formed, and low-temperature culture waters are respectively fed into the culture pools for seafood temporary-culture. After temporary-culture, culture waters containing impurities and proteins are sent to the filtration boxes to filter, degrade and remove proteins, and thenthe culture waters are reduced to clean waters to cyclic utilization. Water temperatures of the culture pools are constant and stable, temporary-culture time is long, seafood culture in a plurality ofdifferent temperature zones is realized, numbers of temporary-culture varieties are large, and people consumption requirements are satisfied.
Owner:珠海翰爵水产科技有限公司
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