Method for changing length of process wastes of steel strand joints

Abstract

A method for changing length of process wastes of steel strand joints comprises the following steps: (a) after producing the last batch of steel strands, leaving certain steel wires on an I-beam wheel (1); (b) performing joint connection on the next batch of the steel wires to be produced on the I-beam wheel and the last batch of the residual steel wires by a splicer; (c) starting equipment, causing joints to pass a stranding press line groove (2) to reach an outlet of a first stretching pulley (3) and then shutting down the equipment; (d) restarting the equipment, causing the joints to reach a take-up pulley (6) from the outlet of the first stretching pulley (3) by a medium-frequency heating furnace (4) and a second stretching pulley (5) and then shutting down the equipment; and (e) restarting the equipment, causing the steel wire without the joints to be synthesized into the steel strands and then shutting down the equipment, and then cycling the processes. In the method, the steel wire joints are operated from the process of the I-beam wheel (1) to take-up pulley (6) and then the process is divided into two steps for control, and different process parameters are adopted so that the previously 70m steel wires without the joints are qualified products; and as the last 70m steel wires without the joints are process waste, the steel wires are removed, thus the method helps greatly improve utilization factor of materials and relatively lower the production cost of an enterprise.

Description

technical field [0001] The invention relates to a method for changing the length of steel strand joint process waste products. Background technique [0002] At present, the standards of various countries in the world and our country all stipulate that the steel strands leaving the factory are not allowed to have joints, so the joints of the next batch of steel strands and the previous batch of steel strands must be cut off during the production process. The basic method of existing enterprises is: after the production of the last batch of steel strands is completed, some steel wires are left on the I-shaped wheel 1 of the equipment; Wiring machine joint; open the equipment, so that the joint on the I-shaped wheel 1 passes through the ply crimping groove 2, passes through the first tension wheel 3, the intermediate frequency heating furnace 4, and the second tension wheel 5 to the take-up wheel 6 and then stops; The process parameters are as follows: the temperature of the i...

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