The important factor affecting the surface quality of purple copper rods is the production process, and is closely related to all production processes. The reasons for the oxidation of red copper rods are as follows:
1. The pre-drying time of the insert is too long.
2. The acid corrodes the copper sheet when the curing agent is damp.
3. Copper is a non-specific chemical molecule, and it is easy to lose electronic components and cause oxidation.
4. In addition, the relative humidity of the gas and air, the air pollution on the surface of the metal wire drawing copper plate of the plastic-coated copper tube, the solution to the oxidation production and treatment of the red copper rod, the corrosion resistance of the copper tube, the sediment gas, etc. will also cause the oxidation of tin ore. .
5. The red copper foil insert is not completely cleaned and tidy before electroplating, and black marks appear on the surface, which is the cuprous salt caused by the loss of an electronic component due to oxidation.
6. Immediately after removal, thorough drying or poor production process, residual water traces, detergents, etc., and copper hydroxide and co2 in the air cause electrochemical reactions, resulting in black-gray cuprous, and green in severe cases Salt.
Approach:
1. The metal wire drawing copper plate of the plastic-coated copper tube improves the maintenance of the inert gas during the whole process of the heat treatment method. Due to the very optimistic chemical properties of copper, it can cause rapid chemical reactions with more optimistic gas compounds in the air during high temperature heat treatment. Therefore, it is necessary to more powerfully maintain the inert gas in it to prevent the copper from being oxidized.
2. Improve the removal of the surface of the copper rod and maintain a high gloss. In the production process of rough rolling and heat treatment, the surface of the copper rod will inevitably lead to oxides, and the removal methods such as phosphating treatment, acid removal, and stainless steel passivation are carried out.
3. The plastic-coated copper tube and the metal wire-drawing copper plate improve the control of the production process and the production process. Use a soft brush and cold water to eliminate the sediment on the surface of the copper rod. Before hot rolling, the copper rod should be wrapped with a paper lining. In addition, adopt all-oil hot rolling method, upgrade and renovate the degreasing equipment of continuous extruder, slow down the hot rolling speed, and use all feasible methods to remove air pollution sources remaining on the surface of red copper rods. In addition, everyone’s production and processing management personnel improve the company’s production management and enhance inspection efforts.
4. Improve the post-packaging that controls the output of the product. The red copper rod should be dried as much as possible after phosphating treatment. The humid geographical environment will accelerate the corrosion of copper and affect the accuracy of product output. Therefore, in order to better ensure the drying of the product, double precautions are taken. In addition to drying the product output as much as possible, under the condition of packaging, first use a packaging bag to bind, and then wrap it with yellow film, etc. It can effectively prevent the influence of heavy moisture in the body during transportation.
Post time: Jul-12-2022