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Preparation method for heat-resistant component containing embedded runner, of fusion reactor blanket

A technology of fusion reactors and components, applied in welding equipment, manufacturing tools, non-electric welding equipment, etc., can solve problems such as adverse effects on component service performance, achieve the effect of reducing the preparation process and difficulty, and reducing deformation

Active Publication Date: 2016-04-13
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

This may adversely affect the high temperature long service performance of the component
In addition, limited by the size of the hot isostatic pressure diffusion welding equipment, there are very few manufacturers in the world that can prepare the first wall of the full-scale cladding

Method used

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  • Preparation method for heat-resistant component containing embedded runner, of fusion reactor blanket

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0026] Such as figure 1 As shown, the milled bottom plate 9 is placed on the flattened sand or soft ground 10, the cross section of the milled groove is consistent with the cross section of the coolant flow channel, and then the low melting point metal layer 7 and the carbon steel plate 8 are placed together. In the milling groove of the base plate.

[0027] The low-melting-point metal is tin alloy or lead alloy, and at the same time, ensure that the overall height of the low-melting-point metal and carbon steel filler is 0-5% higher than the depth of the milling groove.

[0028] Then the low-activation martensitic steel cover plate 6 is placed on the low-activation martensitic steel groove milling bottom plate 9 . Support columns 5 are placed at both ends between the low-activation martensitic steel cover plate 6 and the nano-oxide reinforce...

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Abstract

The invention discloses a preparation method for a heat-resistant component containing an embedded runner, of a fusion reactor blanket. The structural material of the component is reduced activation martensitic / ferritic steel, the embedded runner is formed by virtue of a scheme of explosive welding for a bottom plate and a cover plate of a milling groove, and through filling a runner groove with a low-melting-point metal and a carbon steel plate, runner deformation due to an explosive shock wave is reduced and a good welding effect is ensured, and later heating removal at a low temperature is facilitated; and meanwhile, a layer of nano-oxide-reinforced reduced activation martensitic / ferritic steel is formed at the outer side of the component through explosive cladding to increase the maximum service temperature of the component, and buffer layers are added between explosives and the nano-oxide-reinforced reduced activation martensitic / ferritic steel to prevent the plates from cracks. The method is capable of realizing combination for the bottom plate and the cover plate of the milling groove, and the nano-oxide-reinforced reduced activation martensitic / ferritic steel in one process, and capable of effectively increasing the preparation efficiency of the large heat-resistant component of the blanket, and ensuring the stability of the microstructure of the material during the preparation process for the component.

Description

technical field [0001] The invention relates to the technical field of fusion reactor cladding preparation, in particular to a method for preparing a fusion reactor cladding heat-resistant component with an embedded flow channel. Background technique [0002] Fusion reactor cladding needs to withstand 14MeV high-energy neutron irradiation of the core, high energy density heat flow (>1MW / m 2 ) shock and other harsh environments. Low-activation martensitic steel (Reduced Activaiton Martensitic / Ferritics steel) has the advantages of resistance to high-energy neutron radiation, low activation, and good high-temperature performance, and is considered to be the preferred structural material for the first fusion reactor in the future. There are a large number of coolant flow channels inside the heat-resistant parts such as the first wall of the cladding. On the one hand, the coolant can take the nuclear heat produced by fusion out of the cladding to realize energy utilization. ...

Claims

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Application Information

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IPC IPC(8): B23K20/08B23K20/24
CPCB23K20/08B23K20/24
Inventor 黄波翟玉涛张俊钰张保仁刘少军黄群英吴宜灿
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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