Super-thick T2-316L explosion welding superconducting corrosion-resisting composite board

Abstract

The invention relates to a super-thick T2-316L explosion welding superconducting corrosion-resisting composite board. Firstly, the explosion velocity of explosive is controlled to be about 1000-1300 m / s by an explosive composition optimization design; secondly, the water content and the density are controlled by adopting a principle of explosive-charging principal parameter lower limit selection through an explosive-charging auxiliary parameter, such as a gap and the reasonable design and selection of basic composite board explosive-charging dimensions, and by collocating a sandy soil ground base added with water, thus the invention ensures that the one-time composite rate of the super-thick T2-316L explosion welding superconducting corrosion-resisting composite board reaches 100 percent, the composite strength of the super-thick T2-316L explosion welding superconducting corrosion-resisting composite board reaches or even surpasses the national standards, and finally, the super-thick T2-316L explosion welding superconducting corrosion-resisting composite board can not be layered during the sequential mechanical processing by being formulated by a heat processing parameter.

Description

Technical field [0001] The invention relates to a T2-316L explosive-welded superconducting high-corrosion-resistant super-thickness composite board that uses the energy generated by the explosion of an explosive as an energy source to form a firm solid-phase combination of two metal surfaces to be welded. It belongs to the field of explosive welding technology. Background technique [0002] Explosive welding technology and explosive composite materials have been widely used in various fields such as petroleum, chemical industry, shipbuilding, electric power, aviation, aerospace, salt production, alkali production, metallurgy, atomic energy, mining, transportation, and machinery manufacturing. [0003] At present, the thickness of various composite panels produced by explosive welding methods is generally below 12 mm; the substrates are generally ordinary steel or container steel forgings. For composite plates with a composite plate thickness of more than 12 mm, the welding recomb...

AI Technical Summary

Problems solved by technology

[0004] 1. If the composite material is too thick, the required acceleration distance will increase, and the placement gap will become larger. The increase in the gap will increase the bending limit of the composite plate during explosive welding and the effective action distance of the explosive load. If the explosion pressure is too high, there will be large ripples on the clad plate or even excessive melting of the local edge of the clad plate, which will easily lead to a low welding composite rate.

[0005] 2. Affected by the unstable detonation section of the explosive, too thick doubler plates will cause the area of ​​the unbonded area of ​​the composite plate at the detonation end to become larger; and due to the influence of boundary effects (the width of the boundary effect is 10 times the thickness of the doubler plates) so The non-combination zone of the boundary effect on both sides and ends of the composite plate will also be widened

[0006] 3. The amount of explosives exceeds the standard. Excessive explosives will generate high temperatures during explosive welding. General standard protective measures cannot ensure that the surface of the copper plate will not be overheated.