Super-strong high-tenacity sandwich plate with orthotropic structure and preparation process thereof

Abstract

The invention discloses a super-strong high-tenacity sandwich plate with an orthotropic structure and a preparation process of the super-strong high-tenacity sandwich plate, wherein the super-strong high-tenacity sandwich plate is formed by cementing an upper face plate, a lower face plate and a ripple core plate; the upper face plat and the lower face plate are stainless steel plates; the ripple core plate is a high-strength hot forming steel plate which is formed by roller pressing or formed by mould pressing, has a plurality of strength grades, and is heated to be completely austenitized and quenched to achieve martensite phase transformation; the tensile strength of the ripple core plate is 1300-1600MPa; the height of the ripple core plate is 32-100mm; the thickness of the ripple core plate is 1.0-4.5mm; the wave pitch of the ripple core plate is 49-156mm; the thickness of the upper face plate is 2.0-10mm; the thickness of the lower face plate is 1.0-10mm; the height of the sandwich plate is 35-120mm; the width of the sandwich plate is 200-3000mm; the length of the sandwich plate is 1000-10000mm. The super-strong high-tenacity sandwich plate with the orthotropic structure, disclosed by the invention, has the advantages of low cost, strong plate anticorrosion durability, high bonding strength and toughness and the like and has the relatively high superiority in aspects such as light weight, mechanical property and cost.

Description

technical field [0001] The invention is mainly used in the manufacture of decks and bulkheads instead of medium-thick plate structures in the manufacture of ship hulls and cabins, and is also applicable to the manufacturing process of high-speed trains and rail transit car floor structures and shells. Specifically, it is an orthotropic Structural super strong and high toughness sandwich board and its preparation process. Background technique [0002] Medium and thick plates are the main building plates used for decks, walls and bulkheads in the domestic shipbuilding industry. The thickness range is 8-50mm. (The density of steel is 7.8g / cm 3 ), large thickness and solid core structure, resulting in high surface density, and a large number of applications affect the load and dynamic performance of ships. Some foreign shipyards use laser-welded sandwich structure sandwich plates instead of medium-thick plates. The lower panel is connected by laser welding, which is generally...

AI Technical Summary

Problems solved by technology

[0002] Medium and thick plates are the main building plates used for decks, walls and bulkheads in the domestic shipbuilding industry. The thickness range is 8-50mm. (The density of steel is 7.8g / cm 3 ), large thickness and solid core structure, resulting in high surface density, a large number of applications affect the load and dynamic performance of ships

Some foreign shipyards use laser-welded sandwich structure sandwich plates instead of medium-thick plates. The lower panel is connected by laser welding, which is generally used for decks and bulkheads of luxury yachts. The production cost is high and the welding performance is limited, which limits the extensive development of laser welding sandwich panels.

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