Processing steps and precautions of prestressed steel strand extruder
When the pre-stressed steel strand is installed with the extrusion sleeve, the steel strand is firstly cut according to the predetermined length. After the chamfering treatment, the extrusion spring and the extrusion sleeve are inserted and extruded on the extruder.
Extrusion processing steps,
Processing steps and precautions for P-type anchor prestressing tendons：
Extrusion processing step;
1 Connect the extruder to the oil pump and connect the power supply.
2 Apply wetting grease to the extrusion die.
3 Insert the compression spring into the strand and pass it through the extrusion die of the extruder.
4 Squeeze the sleeve on the steel stranded extruded spring jacket.
5 The oil pump is turned on to supply oil to the extruder, and the extrusion sleeve is extruded through the extrusion die, and the extrusion sleeve is thinned and nested on the steel strand.
Precautions:
1.Squeeze through the extrusion mode, the maximum oil pressure should be between 25-38Mpa. 2.After the extrusion sleeve is extruded, it is required that the bottom and the steel strand are closely nested, and the compression spring should be completely embedded between the extrusion sleeve and the steel strand.
3.The length and outer diameter of the extruded sleeve shall be in accordance with the manufacturer's given value, and the exterior shall be smooth and free of cracks.
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