CN201897977U

CN201897977U - Extrasoft composite metal wire

Info

Publication number: CN201897977U
Application number: CN201020639784XU
Authority: CN
Inventors: 易新民
Original assignee: NANTONG HONGYANG METAL PRODUCTS CO Ltd
Current assignee: NANTONG HONGYANG METAL PRODUCTS CO Ltd
Priority date: 2010-12-03
Filing date: 2010-12-03
Publication date: 2011-07-13
Anticipated expiration: 2020-12-03

Abstract

The utility model provides an extrasoft composite metal wire, which relates to the extrasoft composite metal wire in a specification of phi 0.45mm, and comprises a low-carbon steel iron wire body, a copper layer and a pure tin layer, wherein the copper layer is electrically plated on the periphery of the low-carbon steel iron wire body, the pure tin layer is electrically plated on the periphery of the copper layer, the thickness of the copper layer is 5 mum, and the thickness of the pure tin layer is 3 mum. The extrasoft composite metal wire has the advantages of reasonable structure and good weldability, electric conductivity and mechanical performance, conforms to environment protection requirements of Restriction of Hazardous Substances (ROHS), and is particularly suitable for being used as a connecting wire for electric devices.

Description

A kind of clad metal wire of dead-soft

Technical field:

The utility model relates to a kind of clad metal wire of dead-soft, is specifically related to a kind of clad metal wire of dead-soft of Φ 0.45mm specification.

Background technology:

The clad metal wire of existing dead-soft is not owing to have the high strength and the obdurability of steel, rigidity is low, is not easy to cut off moulding, in the final assembly flow process, be not able to support oneself and topple over, the production automation of incompatibility Resistor-Capacitor Unit, and Heavy Weight do not have good solderability and high frequency, poor to aluminium welding characteristic simultaneously, the manufacturability of wire rod butt welding is bad, and the price height, makes the production cost of enterprise improve greatly.

The utility model content:

The purpose of this utility model provides a kind of clad metal wire of dead-soft, and it is rational in infrastructure, has good solderability, conductivity and mechanical performance, meets the ROHS environmental requirement, is particularly suitable for the connecting line of electronic devices and components.

In order to solve the existing problem of background technology, the utility model is by the following technical solutions: it comprises mild steel iron wire body 1, it also wraps copper containing layer 2 and pure stannum layer 3, and copper layer 2 is electroplated in mild steel iron wire body 1 periphery, the periphery that pure stannum layer 3 is electroplated at copper layer 2.

The thickness of described copper layer 2 is 5 μ m, and the thickness of pure stannum layer 3 is 3 μ m.

The utlity model has following beneficial effect: the high strength and the obdurability that 1, have steel: the rigidity height, be easy to cut off moulding, in the final assembly flow process, be able to support oneself and do not topple over, adapt to the Resistor-Capacitor Unit production automation.Under the situation of identical extension, tensile strength is higher 2 times than copper cash, and the coefficient of expansion of line is little.

2, in light weight: lighter by 13% than fine copper tinned wire, under online footpath, the equiponderant situation, its length is 1.13 times of fine copper tinned wire, and therefore buying 1 ton of copper covered steel wire is equivalent to buy 1.13 tons of pure copper wires.

3, in steam, carry out wearing out in 4 hours, wore out in 16 hours in 150 ℃ of high temperature, still have good solderability.

4, outward appearance is bright and clean, and nothing is revealed copper, detin, blackspot, corrosion, crackle and surpassed defectives such as the list edge of permissible variation, burr.

5, has good high frequency.Under the high frequency, because concentration effect is with the increasing and increase of frequency, this moment, the electric conductivity of wire rod can be comparable with the copper cash of same cross-sectional.

6, have good in aluminium welding characteristic, the good manufacturability of wire rod butt welding.

7, its price is that 1/2 of fine copper tinned wire is less than, and greatly reduces enterprise's production cost.

Description of drawings:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is that the A-A of Fig. 1 is to cutaway view;

Fig. 3 is that the B-B of Fig. 1 is to cutaway view.

Embodiment:

Referring to Fig. 1-3, this embodiment by the following technical solutions: it comprises mild steel iron wire body 1, and it also wraps copper containing layer 2 and pure stannum layer 3, and copper layer 2 is electroplated in mild steel iron wire body 1 periphery, the periphery that pure stannum layer 3 is electroplated at copper layer 2.

This embodiment has following beneficial effect: the high strength and the obdurability that 1, have steel: the rigidity height, be easy to cut off moulding, and in the final assembly flow process, be able to support oneself and do not topple over, adapt to the Resistor-Capacitor Unit production automation.Under the situation of identical extension, tensile strength is higher 2 times than copper cash, and the coefficient of expansion of line is little.

Claims

1. the clad metal wire of a dead-soft, it comprises mild steel iron wire body (1), it is characterized in that it also wraps copper containing layer (2) and pure stannum layer (3), and copper layer (2) is electroplated in mild steel iron wire body (1) periphery, and pure stannum layer (3) is electroplated the periphery in copper layer (2).

2. the clad metal wire of a kind of dead-soft according to claim 1, the thickness that it is characterized in that described copper layer (2) is 5 μ m, the thickness of pure stannum layer (3) is 3 μ m.