Casting equipment and method for continuous production of controllable-density oxidation-free foamed aluminum sheets

Abstract

The invention discloses casting equipment and method for continuous production of controllable-density oxidation-free foamed aluminum sheets. The equipment comprises a resistive heating continuous foaming furnace, a blower stirrer, a nitrogen cooling tank, a strip steel conveyor, flying shears and a conveying roller bed; the blower stirrer is mounted on a foamed molten aluminum guide hood; the devices above allow sufficient guiding, full stirring and uniform filling of air in blow holes; the molten aluminum and bubbles are fully mixed to obtain controllable-density uniform foamed aluminum; the strip steel conveyor drives the foamed molten aluminum into a terminal cooling space at a constant traction speed, not a press roller manner but a graphite baffle manner is adopted to scrape-thin the foamed molten aluminum (not increasing surface bubble density but ensuring uniform density of the foamed molten aluminum), the foamed molten aluminum is fed to the following cooling space to allow the internal of the foamed aluminum to harden; finally, high-quality foamed aluminum sheets free of oxidization and internal cracking and having uniform and controllable foam density can be produced; low-cost production is achieved.

Description

technical field [0001] The invention relates to the field of metal materials, in particular to a casting device and method for continuously producing foamed aluminum sheets with controllable density and no oxidation. Background technique [0002] Aluminum foam is a composite material composed of metal phase and pores; it combines the metal characteristics of continuous phase aluminum (such as appropriate strength and rigidity, high temperature resistance, etc.) , shock absorption, shielding, etc.) combined together, can be widely used in the manufacturing structure of transportation vehicles, shielding and heat preservation in the construction industry, sound insulation to reduce operating noise in the machinery industry, and metallurgy and chemical industry, electronic communications and aerospace, ships, military Explosion-proof and other technical fields. Currently limited to the technical limitations of basic industries, foamed aluminum has: flow casting method, electro...

AI Technical Summary

Problems solved by technology

In addition, the graphite mold of the horizontal continuous casting is too short to meet the cooling conditions of the aluminum foam, and the traction of the roll will make the foam density inside and outside the aluminum foam plate uneven;

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