The invention discloses an aluminum
alloy plate material continuous
extrusion method taking bar materials as blanks, and a continuous
extrusion machine. The method comprises the following steps: A, dividing the blanks into multiple sections of bar materials, and connecting the head end face of the front-back adjacent bar materials with the
tail end face of the front-back adjacent bar materials in each section of bar material; B, performing
induction heating on the connected bar materials under the protection of
inert gas through an induction device; and C, feeding heated bar materials into a rotary
extrusion wheel, pressing the bar materials into a groove of the extrusion wheel through a pressing wheel, driving the bar materials through the groove in the extrusion wheel to enter a cavity and extruding to form a product through an extrusion mold in the cavity. According to the continuous extrusion method and the continuous extrusion
machine, the problem that remarkable defects exist at the head-
tail connection position of the bar materials during continuous extrusion of the
magnesium alloy bar materials is solved; and the temperature of the
magnesium alloy is increased by adopting
induction heating under the protection of the
inert gas, so the problems that the
magnesium alloy has low
plasticity at normal temperature and is broken when being pressed by the pressing wheel are solved.