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What copper wire is nickel-plated copper wire? What is the advantage of nickel-plated copper wire? What are the nickel-plated copper wires? First let's see the definition of nickel-plated copper wire.
Nickel-plated copper wire definition: Wire metal plated on copper by electrolysis or chemical method.
What copper wire is nickel-plated copper wire? What is the advantage of nickel-plated copper wire? What are the nickel-plated copper wires? Nickel-plated copper wire definition: Wire metal plated on copper by electrolysis or chemical method.
Knowing the definition of nickel-plated copper wire, it is for the advantages of nickel-plated copper wire: bringing parts with excellent corrosion resistance, wear resistance, weldability, and high hardness, and meet the requirements of parts, improve parts. Life.
Nickel-plated copper wire introduction to nickel-plated copper wire nickel plated:
1. Chemically plated nickel: under certain conditions, the metal ions in the aqueous solution are reduced by the reducing agent, and precipitate the process on the surface of the solid matrix. The plating solution is generally a reducing agent such as nickel sulfate, nickel nickel or the like.
Advantages of chemically nickel plating:
(1) With a wide range of coverage, a more uniform plating layer can be obtained for each portion of the complex part.
(2) It has excellent deep plating capability than electroplating, can greatly reduce the blind hole in the plating, and the coated layer in the deep hole.
(3) The chemically plated nickel layer has the advantages of uniform resistance, abrasion resistance, weldability, and thick thickness of the plating and thickness of the plating and brushing.
2, electroplating: in a pre-plated salt solution, to be plated with a cathode by electrolytic metal, by electrolysis, the plating solution is deposited in the surface of the substrate metal, forming a surface processing of the coating method.
3, brush plating: An electrode or brush of an electrolyte desired electrolyte desired electrolyte is connected to an anode, and a method of selecting electroplating is moved on the article as a cathode.
Advantages of brush plating: brushing is a new process that has developed in recent years. Its maximum advantage is no top-bearing tank, and the deposition speed is faster. Since it is equipped with equipment, it can be selected, and there are advantages such as higher binding strength, so it is widely used in air, ship, railway, electronics and machinery and various vehicles. It is currently national promotion. A new process.
Disadvantages of brushing: brushing under many places, such as some parts of repair, large-scale plating parts, productivity is obviously not very high, and compared with chemical plating, brush-plating coating is also clearly like chemical plating.
Nickel-plated copper wire introduction to nickel-plated copper wire and bare copper wire: nickel-plated copper wire and bare copper wire have almost no difference in temperature and electrical properties, they differ from the nickel-plated layer in the air is very stable Since the metal nickel has strong passivation capability, a thin layer of passivation film can be rapidly generated on the surface, which can resist corrosion of atmosphere, base and some acid, and the hardness of the nickel plating layer is relatively high, and the product surface can be improved. Wear resistance.
Nickel-plated copper wire introduction of copper wire preparation before nickel plating:
1. Insulating oil: Copper wire in the process of drawing and handling, it will contain oil. Since these oils are not thoroughly removed during annealing, chemical removal of oil and electric release oil must be used before electroplating, so that it is cleaned.
2, pickling: Cleaning with a solution of hydrochloric acid, there is no large corrosion on the copper wire, and in contrast, the surface of the copper wire is thin, and the residue left on the copper wire is less. The process of chemical acid washing is as follows:
(1) Acid washing liquid is used with hydrochloric acid solution, hydrochloric acid and water ratio 1: 2.
(2) Wash 5 to 10 s at room temperature.
Ni-nickel-plated copper-plated copper-plated nickel pretreatment Precautions: Each time the oil must be rinsed with hot water and cold water. If the cleaning is not net, it is easy to bring the soap or the like to form a fatty acid to prevent the acid washing process. After the copper wire is washed, it should be washed at least two cold water rinsing. After the deposition tank, a distilled water (or deionized water) should be washed away to avoid the impurities into the plating tank.
Nickel-plated copper wire Introduction to nickel-plated copper wire annealing: nickel-plated copper wire passes through the release, the plasticity, and the tensile strength and hardness are significantly increased. Nickel-plated copper lines must be annealed due to product performance.
Nickel-plated copper wire introduction to nickel-plated copper wire annealing: Tank furnace and bell furnace. Although the recrystallization temperature of nickel is 530 to 660 ° C, the recrystallization temperature of copper is 230 ° C, so the annealing temperature of the nickel-plated copper wire should not be too high. The annealing temperature in the tank furnace is 2500 ° C, and the clock furnace annealing temperature is 330 ~ 350 ° C. The arrangement of a nickel-plated copper wire in an annealing furnace must make each plate averaged evenly, and do not rapidly warming, so as not to bond the nickel-plated copper wire, and lose gloss.
Nickel-plated copper wire introduces the nickel-plated copper wire for wire drawing:
1. Increase the degree of cryopretering of the smooth and coating of the nickel plating copper wire, because the nickel-plated copper wire obtained by rapidly nickel plating is not smooth, and the cable can make the surface smooth.
2, increase production and reduce costs.
3, easy to produce a small diameter nickel-plated copper wire, and the fine copper wire is easily disconnected when nickel plating.