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Specification for operating aluminum profile extrusion press machine plant line and upper and lower aluminum die (2)

Specification for operating aluminum profile extrusion press machine plant line and upper and lower aluminum die (2)

Issue Time:2022/07/13
Specification for use of extrusion shafts for aluminium equipment

(1) The two end faces of the extrusion shaft must be parallel, the non-parallelism is not more than 0.05mm, and the two end faces must be perpendicular to the axis, the non-perpendicularity is not more than 0.05mm; The surface of the two ends of the plane is smooth, especially the tail plane requires polishing, Ra 1.6μm or more;

(2) The side surface and end plane of the extrusion shaft should not have any defects;

(3) there is no axial bending, no external forces outside the axial direction during extrusion;

(4) Strictly align the extrusion shaft with the center of the extrusion cylinder to ensure levelness and coaxiality. The two should keep a uniform gap to prevent collision in the extrusion process;

(5) The extrusion shaft of the aluminum profile extrusion press machine plant line is strictly forbidden to stick metal. If the metal is found to be stuck, it should be removed in time. In order to facilitate removal, a little lubricating oil can be applied to the shaft body;

(6) The extrusion shaft of the aluminum equipment of the extruder should not be placed in the heated extrusion cylinder for a long time to prevent the temperature rise of the shaft body and reduce its use strength;

(7) Hollow extrusion shaft and fixed gasket with extrusion shaft to ensure the roughness of the inner hole and the concentricity of the extrusion needle, guide rod, ensure that the extrusion needle and guide rod can move freely in the shaft hole;

(8) When it is found that the working face (inner and outer surface) of the extrusion shaft has collapsed deformation, it should be repaired in time;

(9) The pressing sleeve fastening device at the root of the extrusion shaft should be flexible and adjustable, strong and durable, and should be checked and adjusted regularly to ensure the concentricity and levelness of the extrusion shaft;

(10) The loading and unloading and replacement of the extrusion shaft must use special tools to prevent collision and cause safety accidents;

(11) The extrusion shaft must be tested regularly, such as hardness, measurement of size and levelness, alignment centrality, etc., and problems should be dealt with in time.
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