The invention discloses a nickeling treatment method for the surface of a copper wire, adopting a copper wire, wherein the surface of the copper wire is subjected to nickeling treatment, and the nickeling treatment comprises the following steps: (1) removing oil; (2) washing by using flowing water; (3) washing by using acid; (4) washing by using water; (5) drying and preheating to the temperature of 70-74 DEG C; (6) performing the nickeling treatment; (7) washing by using deionized water; and (8) performing passivation treatment. Due to the nickeling treatment on the surface of the copper wire, the surface of the copper wire is prevented from corrosion and abrasion, the corrosion resistance, mechanical properties, electrical conductivity and heat conductivity of the overall copper wire bundles are improved and the service life of the copper wire is prolonged.

Nickeling treatment method for surface of copper wire

The invention relates to a preparation method of gold coating on the surface of carbon fiber reinforced resin matrix composites, in particular to the preparation method of gold coating on the surfaceof the carbon fiber reinforced resin matrix composites assisted by electro-modification active point and belongs to the technical field of surface engineering. The method is applied to the high precision gold coating on the surface of spacecraft spaceborne reflector antenna, waveguide array antenna and horn array antenna The preparation method of the gold coating on the surface of the carbon fiberreinforced resin matrix composites can prepare the gold coating on the surface of carbon fiber reinforced cyanate resin composites, specifically, the gold coating has uniform appearance, can bear high and low temperature impact of minus 196 DEG C to 120 DEG C for 100 times and has the resistivity less than or equal to 0.05 [mu]omega*m.

Preparation method of gold coating on the surface of carbon fiber reinforced resin matrix composites

The invention relates to the field of chemical nickel plating methods and discloses a stainless steel product barrel plating method and an activating solution. The barrel plating method comprises thefollowing steps: soaking to deoil; electrolytically deoiling; pickling; stirring a strong oxidant, ammonium hydrogen fluoride, a strong acid agent and a corrosion inhibitor to uniformly mixing components to obtain the activating solution, wherein the mass ratio of the strong oxidant, ammonium hydrogen fluoride, the strong acid agent and the corrosion inhibitor is (15-20): (5-10): (3-5): (3-8); introducing the activating solution into an activating groove and putting a stainless steel to-be-plated product into the activating groove for activation; carrying out nickel preplating; and controllinga porous roller to rotate, putting the stainless steel to-be-plated product in the porous roller, and introducing a chemical nickel-plating solution into a chemical nickel-plating groove for barrel plating to obtain a stainless steel nickel plating product. According to the stainless steel product barrel plating method, the bonding property of a matrix and a nickel layer can be improved, and theplating thickness and the surface quality uniformity can be improved.

Stainless steel product barrel plating method and activating solution

The invention relates to a high-purity nickel plating method for a copper disc, and relates to the technical field of copper plate surface treatment. The method comprises the following steps of (1) preparation before plating; (2) mechanically removing oil; (3) loading on a hanger, and chemically removing oil; (4) cleaning; (5) conducting anode electrolysis; (6) conducting acid electrolysis; (7) pre-plating nickel; (8) thickening; and (9) drying. According to the method, eight tedious procedures such as activation are reduced to the original process degree, the production period is shortened, the cost is saved, and the efficiency is improved; and plating nickel is conducted, specifically, an acidic electrolyzed copper plate matrix is placed in a nickel pre-plating solution for nickel pre-plating, and thickening is conducted, specifically, a nickel pre-plated composite material is placed in a nickel-plating solution for nickel plating, and the thickness of a plating layer is thickened to0.5 micrometer-1 micrometer, so that the nickel-plating thickness value of a copper plate is large, the nickel-plating purity is improved, and the service life is prolonged.

High-purity nickel plating method for copper disc

The invention discloses a production technology of a fine bronzing plate with high precision and hardness. The production technology comprises the following steps : (1) loading materials; (2) chemical oil removal; (3) recycling washing; (4) electrolytic activation; (5) double cleaning; (6) nickel plating: carrying out chemical nickel plating by using a plating liquid containing 28 g / L nickel sulfate, 30 g / L sodium hypophosphite, 18 mL / L lactic acid (W = 85%), 13 g / L sodium acetate, 8 mg / L potassium iodate and purified water, adjusting the pH value of the plating liquid to 4.6-4.9, stirring at 85-91 DEG C for 3-5 min; (7) double cleaning; (8) drying; and (9) rolling. The invention employs electrolytic activation in advance and nickel preplating to substantially enhance firm combination degree of a nickel coating and a copper base and prolong service life of the bronzing plate.

Sun Qiang

Papers

Production technology of fine bronzing plate with high precision and hardness