Preparation method for tin-phosphor plating bronze wire

A phosphor bronze wire and tin-plating technology, applied in liquid chemical plating, coating, metal material coating process, etc., can solve the problem of poor tin-plating or nickel-plating adhesion, large crystal particles of the coating, insufficient surface brightness, etc. problems, to achieve the effect of improving the bondability of nickel plating, fine crystallization, and easy processing of electroless nickel plating

Inactive Publication Date: 2019-03-29
JIANGYIN SIX CIRQUE ALLOY WIRE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional tin-plated copper wire, nickel-plated copper wire or tin-nickel-plated copper wire processing technology is relatively simple, and the bonding of the tin-plated layer or nickel-plated layer is poor, the surface brightness is not enough, and there are still crystal particles in the plating layer. Large, lack of uniformity and other defects

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The invention discloses a preparation method of a tin-plated phosphor bronze wire, comprising the tin-plated phosphor bronze wire, comprising the following steps:

[0022] S1, pretreatment, select the body of the phosphor bronze wire according to the process specifications, and perform pre-inspection treatment on the body of the phosphor bronze wire, and pre-detect whether there is damage, stains, rust, etc. on the surface; S11, alkali cleaning, put the body of the phosphor bronze wire into the Alkali washing is carried out in the alkaline cleaning solution, and then cleaned with water, the phosphor bronze wire body is detected, and the surface oil is removed; S12, pickling, the phosphor bronze wire body is put into the pickling solution for pickling, and then cleaned with water , detect the body of the phosphor bronze wire, remove surface rust spots, oxide layers, etc.

[0023] S2, annealing, using a continuous annealing wire drawing machine to complete the wire drawin...

Embodiment 2

[0032] The invention discloses a preparation method of a tin-plated phosphor bronze wire, comprising the tin-plated phosphor bronze wire, comprising the following steps:

[0033] S1, pretreatment, select the body of the phosphor bronze wire according to the process specifications, and perform pre-inspection treatment on the body of the phosphor bronze wire, and pre-detect whether there is damage, stains, rust, etc. on the surface; S11, alkali cleaning, put the body of the phosphor bronze wire into the Alkali washing is carried out in the alkaline cleaning solution, and then cleaned with water, the phosphor bronze wire body is detected, and the surface oil is removed; S12, pickling, the phosphor bronze wire body is put into the pickling solution for pickling, and then cleaned with water , detect the body of the phosphor bronze wire, remove surface rust spots, oxide layers, etc.

[0034] S2, annealing, using a continuous annealing wire drawing machine to complete the wire drawin...

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Abstract

The invention provides a preparation method for a tin-phosphor plating bronze wire. The preparation method comprises the steps of preprocessing, wire drawing, annealing, zinc immersion, zinc de-plating, nickel pre-plating, chemical nickel-plating, chemical tin-plating, neutralizing treatment, drying and obtaining of finished product. Through the optimized preparation process, by the adoption of the zinc immersion process design, an oxidation film layer on the surface of the product can be removed, a uniform and compact zinc film can be formed, and through quick zinc de-plating, the zinc film layer on the surface can be more uniform and compact. In combination with nickel pre-plating, especially, the alkaline chemical nickel pre-plating process is adopted, the situation that the zinc film layer is poisoned by an acidic chemical nickel plating solution, so that service time of the chemical nickel plating solution is shortened can be avoided, dissolution of the zinc film layer is effectively inhibited, and a thin, fine and uniform nickel plating layer can be obtained to protect the zinc film layer. Besides, subsequent nickel plating processing is facilitated, and the nickel plating bonding property is easily improved. The tin-plating process is optimized, a composite additive is added, so that crystallization of the tin plating layer is finer, and the shiny tin plating layer is easily obtained.

Description

technical field [0001] The invention relates to the technical field of tin-plated materials, in particular to a preparation method of tin-plated phosphor bronze wire. Background technique [0002] The wires used at present are all arranged in the center by a pure copper wire, and an insulating layer is wrapped outside it. For a wire with a large carrying capacity, the conductor is twisted and combined by multiple strands of copper wire to increase the flow of current. The wire cannot exert the maximum flow per unit cross-section because the current is easy to flow through the outer surface of the conductor. The flow in the center is very small, and the structure of this wire does not conform to the natural law of current skin effect. [0003] In addition, the surface of pure copper wires used in daily life is easily oxidized under high temperature conditions, resulting in low resistance, high current, low safety, and cannot withstand high temperatures. Due to the shortcomi...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): C22F1/08C23C18/18C23C18/36C23C18/52C23F17/00
CPCC22F1/08C23C18/1844C23C18/36C23C18/52C23F17/00
Inventor朱向阳
OwnerJIANGYIN SIX CIRQUE ALLOY WIRE CO LTD