A New Type of High Density Neutron Absorbing Plate
A neutron absorbing plate, high-density technology, applied in the direction of nuclear power generation, climate sustainability, nuclear reaction control, etc., can solve the problems affecting the quality of the absorbing plate, aluminum alloy shell deformation, strength reduction, etc., to achieve stable performance , high density, low equipment requirements
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Embodiment 1
[0019] A new type of high-density neutron absorbing plate, comprising an aluminum alloy shell 1, the shell 1 is provided with a plate body 2 formed by sintering an aluminum-based composite material, and 80 parts of Al alloy powder with a particle size of 10 μm, Mix 70 parts of boron carbide powder with a particle size of 50 μm, 10 parts of ceramic micropowder, 15 parts of hollow glass microspheres, 10 parts of shrimp shellfish, 5 parts of sericite particles, and 15 parts of bentonite in a mixer; then put the mixed powder into Encapsulate in an aluminum alloy box with an aluminum alloy frame; vacuum degassing and sintering: put the aluminum alloy box encapsulating the mixed powder blank in a vacuum degree of 10 -3 Vacuum degassing and sintering in a vacuum furnace of Pa; 10% in each pass, when the density of the billet is 70% TD, the rolling is reversed at 90°, and the aluminum alloy cladding on the outer layer of the billet is removed, and then multi-pass hot rolling is carrie...
Embodiment 2
[0022] A new type of high-density neutron absorbing plate, comprising an aluminum alloy shell 1, the shell 1 is provided with a plate body 2 formed by sintering an aluminum-based composite material, and 80 parts of Al alloy powder with a particle size of 15 μm, The particle size is 60μm, 75 parts of boron carbide powder, 20 parts of ceramic micropowder, 20 parts of hollow glass microspheres, 15 parts of shrimp shellfish, 10 parts of sericite particles, and 25 parts of bentonite are mixed evenly in the mixer; reloading: the same as the implementation Example 1: Vacuum degassing and sintering: Put the aluminum alloy box with the mixed powder blank in a vacuum of 10 -3 Vacuum degassing sintering in a vacuum furnace of Pa; 10% per pass, when the density of the billet is 85% TD, the rolling is reversed at 90°, and the aluminum alloy cladding on the outer layer of the billet is removed, and then multi-pass hot rolling is carried out, and the reduction is 35%. Plate rolled to a thic...
Embodiment 3
[0025] A new type of high-density neutron absorbing plate, including an aluminum alloy shell 1, the shell 1 is provided with a plate body 2 formed by sintering aluminum matrix composite materials, and the materials are first mixed during preparation: Al alloy with a particle size of 25 μm 95 parts of boron carbide powder, 75 parts of boron carbide powder with a particle size of 60 μm, 20 parts of ceramic micropowder, 20 parts of hollow glass microspheres, 15 parts of shrimp shellin, 10 parts of sericite particles, and 25 parts of bentonite are mixed evenly in a mixer; Material: the same as in Example 1; vacuum degassing and sintering: put the aluminum alloy box packaged with the mixed powder blank in a vacuum furnace with a vacuum degree of 10-3Pa for vacuum degassing and sintering; the sintering temperature is 480°C, and the sintering time is 15 hours; re-hot rolling and peeling: the sintered aluminum alloy box is continuously hot-rolled at 540 °C for multiple passes, and the ...
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Abstract
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