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Manufacturing method of alloy terminal serving as material of circuit board connector

A production method and technology of electronic connectors, which are applied in the direction of contact parts and contact parts manufacturing, etc., can solve the problems that terminals are difficult to meet the electronic connectors of integrated circuit boards, such as conductivity, non-magnetism, and low proportion of manganese content, and achieve strength Not easy to bend, high strength, good bending toughness effect

Inactive Publication Date: 2013-07-17
章建峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing ordinary stainless steel wire contains nickel in weight percentage, and the manganese content is much lower than 17%. No magnetic requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] According to weight percentage, chromium: 9%, manganese: 17.5%, phosphorus: 0.04%, sulfur: 0.04%, carbon: 0.08% and the rest of iron are smelted-primary drawing-heat treatment-rough drawing-middle drawing heat treatment (degaussing) )-fine drawing-cut to the required specifications by punching machine, or smelting-primary drawing forming-heat treatment-copper plating (pure copper or brass)-rough drawing-medium drawing heat treatment (degaussing)-fine drawing-fine drawing- Cut into required specifications by punching machine. In the drawing process after the first heat treatment, the inner hole of the mold used for drawing the wire is square, flat or round, and the shape of the inner hole of the different drawing die determines whether the final finished alloy wire is square or flat. Alloy wires or round alloy wires are cut into square terminals (guidelines), flat terminals (flat pins) or round terminals (round pins) after being cut by a corresponding type of punching ma...

Embodiment 2

[0013] 10% by weight of chromium, 17% of manganese, 0.038% of phosphorus, 0.035% of sulfur, carbon: 0.078% and the iron of the remainder are produced according to the method described in Example 1, and obtained in a semi-hard state. The strength is 500-800KGF / mm, the plug-in resistance: 20-40 milliohms, the corrosion resistance (the number of days exposed in a ventilated and shaded place) ≥ 80 days, the electroplating adhesion is strong (the material does not crack at the bend at 90 degrees) , the coating does not fall off) ≥ 2 times

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PUM

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Abstract

The invention relates to an alloy terminal serving as a material of a circuit board connector and a manufacturing method thereof. The alloy terminal serving as the material of the circuit board connector is prepared from the following components in percentage by weight: 8.5 to 15 percent of chromium, 16 to 18.5 percent of manganese, 0.03 to 0.05 percent of phosphorus, 0.03 to 0.05 percent of sulfur, 0.06 to 0.09 percent of carbon and the balance of iron. The manufacturing method of the alloy terminal comprises the following steps of: carrying out smelting, primary drawing forming, heat treatment, rough drawing, intermediate drawing heat treatment (demagnetization) and fine drawing on the raw materials; cutting the obtained product into a required specification by a punch to form a material alloy terminal; and carrying out electroplating treatment on the formed material alloy terminal to form the alloy terminal. The alloy terminal of the circuit board connector has high strength, is difficult to bend, has good bending toughness, continuity, non-magnetism and an anticorrosion performance and can replace a copper electronic connector terminal, so that the total cost of the integrated circuit board electronic connector is greatly reduced.

Description

technical field [0001] The invention relates to a production method of a circuit board connector material alloy terminal. Background technique [0002] In the prior art, the circuit board connector terminals are made of copper material. Although the copper material has low resistivity and good electroplating adhesion, copper resources are relatively scarce in my country, and the cost of copper material is relatively high. However, materials such as ferrochrome manganese are rich in resources in our country. Even if they need to be imported, their cost is much lower than that of copper. Using ferrochrome manganese alloy as the raw material of the electronic connector terminal of the integrated circuit board is a good way to save production costs, but A new exploration of the composition of ordinary stainless steel wires is required. The existing ordinary stainless steel wire contains nickel in weight percentage, and the manganese content is much lower than 17%. No magnetic ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01R13/03H01R43/16
Inventor 章建峰
Owner 章建峰