The invention discloses a manufacturing method for a Li-B base air suction material. According to the manufacturing method, by
mass, 30-70 % of Li, 20-50 % of B, 0.3-6 % of Mg and / or Al and 0.01-18% of C are heated to 350-370 DEG C, heat preservation is conducted, the components are stirred evenly and cooled along with a furnace, and Li-B base prealloy is obtained; the Li-B pre-
alloy is processed into the shape needed by an air suction component at the
room temperature in air with
relative humidity lower than or equal to 2 %, the Li-B prealloy is heated to 600-700 DEG C in protective
atmosphere, heat preservation is conducted on the Li-B
alloy for 5-30 minutes and a finished product is obtained. The manufacturing method for the Li-B base air suction material not only solves the problem that Li-B
alloy meeting the air suction material standard cannot be manufactured through a one-step synthesis method in the prior art and the problem that Li-B alloy air suction pieces cannot be manufactured through the
powder process pressing method, but also reduces the difficulty of controlling the structure of the Li-B base air suction material, and improves the uniformity of the structure of the material; meanwhile, the
spontaneous combustion phenomenon is successfully avoided, and the surface
passivation of the Li-B base air suction material is achieved. The manufacturing method for the Li-B base air suction material is simple in preparation technology and can be produced in an industrialized mode conveniently.