Technique for processing semihard phosphorus deoxidized copper pipes

Abstract

The invention discloses a processing technology for a semi-hard phosphorus deoxidized copper pipe, which comprises the following steps: first adding most of the electrolytic copper to be smelted and iron elements with a content of 0.045% to 0.05% into a smelting furnace for smelting, and then Add the remaining small part of electrolytic copper into the smelting furnace, fully stir, add phosphor-bronze intermediate alloy into the smelting furnace, undergo rapid analysis before the furnace, pour into ingot, extrude the ingot, roll the tube, completely Hard stretching, finishing, complete recrystallization annealing, performance inspection, and finally packing the pipe into storage. Its advantages are: by adding iron element in the smelting process, it can ensure the performance range requirements of Vickers hardness (HV) in semi-hard phosphorus deoxidized copper pipes, and at the same time meet the requirements of semi-hard phosphorus deoxidized copper pipes on elongation, The requirements of tensile strength, yield strength and grain size, etc., the product performance is stable, and the production feasibility is high.

Description

technical field [0001] The invention relates to a processing technology of a semi-hard phosphorus deoxidized copper pipe. Background technique [0002] The traditional processing technology of semi-hard phosphorus-deoxidized copper pipe mainly includes melting electrolytic copper, adding phosphor-bronze master alloy into the melting furnace, rapid analysis before furnace, pouring into ingot billet, extruding the ingot billet, rolling pipe, Complete recrystallization annealing, stretching, finishing, finished product annealing, performance inspection, and finally packaging and storage of pipes, but due to the limitations of annealing equipment and annealing process, the quality of products produced by this process fluctuates greatly, and the performance is very unstable , it is difficult to ensure the performance range requirements for Vickers hardness (HV) in semi-hard phosphorus deoxidized copper pipes, and HV is between 65 and 75. Contents of the invention [0003] The ...

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Problems solved by technology

[0002] The traditional processing technology of semi-hard phosphorus-deoxidized copper pipe mainly includes melting electrolytic copper, adding phosphor-bronze master alloy into the melting furnace, rapid analysis before furnace, pouring into ingot billet, extruding the ingot billet, rolling pipe, Complete recrystallization annealing, stretching, finishing, finished product annealing, performance inspection, and finally packaging and storage of pipes, but due to the limitations of annealing equipment and annealing process, the quality of products produced by this process fluctuates greatly, and the performance is very unstable , it is difficult to ensure the performance range requirements for Vickers hardness (HV) in semi-hard phosphorus deoxidized copper pipes, HV is between 65 and 75