A casting-in additive manufacturing method of large-size ceramic particle-steel composite material

Abstract

The invention belongs to the field of composite material preparation, and in particular relates to a casting-in additive manufacturing method of a large-size ceramic particle-steel composite material. The steps are as follows: process holes on the steel substrate that conform to the shape and size of the ceramic particles, preheat the ceramic particles on the substrate and put them in a furnace to preheat, heat the molten steel to 200-500°C above the melting point, and put the molten steel Casting onto the substrate with preset ceramic particles, so that the steel substrate is partially melted, and after cooling, the metallurgical bond between the cast metal and the steel substrate is formed, and the encapsulation of the ceramic particles by the cast metal is realized, thereby realizing the casting-in additive method to realize the preparation of ceramic-steel composites. This application uses the cast-in-type additive method to encapsulate large-size ceramic particles into the component to form a ceramic particle-steel composite material. On the one hand, it provides protection while achieving weight reduction. On the other hand, it overcomes the sheet-shaped ceramic composite armor. The shortcoming of not being resistant to multiple bullets, it can resist the impact of multiple bullets and obtain the ideal high penetration resistance.

Description

technical field [0001] The invention belongs to the field of composite material preparation, and in particular relates to a large-size ceramic particle-steel composite material cast-in additive manufacturing method. Background technique [0002] At present, the bullet-resistant potential of tank homogeneous armor has been fully utilized, and it cannot meet the new requirements of modern tank armor with both lightweight and protective capabilities. There is an urgent need for a new material that takes into account both lightweight and protective capabilities. Therefore, ceramic-steel composite armor It has become a new trend in tank armor. [0003] When ceramic materials are used as armor materials, there have always been the following problems: After ceramics are impacted by projectiles, they cannot effectively prevent the expansion of surface cracks and are prone to brittle fractures; they cannot effectively yaw projectiles and weaken the penetration ability; The fragmenta...

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Problems solved by technology

[0002] At present, the bullet-resistant potential of tank homogeneous armor has been fully utilized, and it cannot meet the new requirements of modern tank armor with both lightweight and protective capabilities. There is an urgent need for a new material that takes into account both lightweight and protective capabilities. Therefore, ceramic-steel composite armor Became a new trend in tank armor

[0003] When ceramic materials are used as armor materials, there are always the following problems: After ceramics are impacted by projectiles, they cannot effectively prevent the expansion of surface cracks and are prone to brittle fractures; they cannot effectively yaw projectiles and weaken the penetration ability; The fragmentation of ceramic armor is a key point in the process of energy absorption, so the ability of ceramic armor materials to resist secondary strikes is generally weak

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