Method for Cleaning Wire and Device Therefor
AssigneesToyofumi Watanabe, Nakagawa Special Steel Inc.
InventorToyofumi Watanabe
Life of this patent
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Abstract
This method for cleaning wires enables effective descaling and removal of smuts from wires, prevents yellowing after cleaning, and significantly reduces the amount of water discharged as a result of cleaning, said method including, in the stated order: (A) pickling a wire; (B) cleaning the wire with acidic pressurized water, the concentration of which is adjusted with water and collected pickle solution which has adhered to and been recovered by the wire after use in Step (A); and (C) cleaning the wire with water.
Claims17
A wire rod cleaning method comprising, in the following order, the steps of:
- (A) subjecting a wire rod to acid pickling by immersing it in an acid pickling solution;
- (B) cleaning the wire rod with pressurized acidic water, wherein the concentration of the acidic water is adjusted with an acid pickling solution that has been retrieved as being adhered to the wire rod and collected after it had been used in the step (A) and water;
- and
- (C) washing the wire rod with water, wherein
- in the step (A):
- at least a first pickling tank and a second pickling tank are used;
- and the wire rod is subjected to acid pickling in the first pickling tank, then the wire rod is transferred to the second pickling tank, and the wire rod is further subjected to acid pickling in the second pickling tank;
- and
- in the step (B), smut is removed from the wire rod.
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A wire rod cleaning apparatus, comprising:
- (a) at least one pickling tank;
- (b) a high-pressure cleaning shower equipped with a cleaning liquid circulation tank and a filtered water inlet connected to the cleaning liquid circulation tank and configured to perform cleaning with pressurized acidic water produced by diluting an acid used in the pickling tank;
- (c) at least one water washing tank;
- and
- (d) transfer means configured to transfer a wire rod from the pickling tank to the high-pressure cleaning shower and from the high-pressure cleaning shower to the water washing tank, respectively, wherein
- the at least one pickling tank includes at least a first pickling tank and a second pickling tank,
- the wire rod cleaning apparatus further comprises a flow channel configured to supply an acid pickling solution from the second pickling tank to the first pickling tank, wherein
- the transfer means is capable of transferring the wire rod from the first pickling tank to the second pickling tank.
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Dependencies are inferred from the claim text.