Method for manufacturing cuprum-cover-silver as well as silver alloy three composite rivet contact

A three-composite, silver alloy technology, used in electrical components, electrical switches, circuits, etc., can solve the problems of easy solder flow, low yield, low artificial welding efficiency, etc., to improve bonding strength, production efficiency and material utilization. high effect

Inactive Publication Date: 2008-07-23
FUDA ALLOY MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are three deficiencies in the preparation method of this copper-clad silver and silver alloy three-composite rivet contact: (1) the manual welding efficiency is low; The rate is extremely low, which greatly affects the yield of contacts; (3) During manual welding, the solder is easy to flow to the working surface of the product, which affects the contact electrical performance of the product

Method used

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  • Method for manufacturing cuprum-cover-silver as well as silver alloy three composite rivet contact

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] See Figure 1. After the right cutter 13 cuts the copper material 11 to a length of 3.2 mm, it moves to the position of the silver wire 09. The silver wire 09 is sent to the right cutter 13 through the newly added wire feeding device 08 to cut the length of 1.5 mm. The silver wire 05 The left cutter 02 is fed into the cutting length of 1.8mm through the newly added wire feeding device 08, the left cutter 02 and the right cutter 13 move to the center of the bottom mold 06 and stop at the same time, and the first mold needle 01 cuts the two knives. The three-stage material is pushed into the bottom mold 06 hole, and is upset and deformed in the bottom mold 06 hole. The left cutter 02, the right cutter 13 and the head mold needle 01 are reset to the initial position, and the bottom mold needle 07 will be covered. The good three-composite material rod is sent to the front end of the bottom mold, that is, the required position of the contact foot, and the part of the material ...

Embodiment 2

[0014] See Figure 1. After the right cutter 13 cuts the copper material 11 to a length of 3.2 mm, it moves to the position of the silver wire 09. The silver wire 09 is sent to the right cutter 13 through the newly added wire feeding device 08 to cut the length of 1.5 mm. The silver wire 05 The left cutter 02 is fed into the cutting length of 1.8mm through the newly added wire feeding device 08, the left cutter 02 and the right cutter 13 move to the center of the bottom mold 06 and stop at the same time, and the first mold needle 01 cuts the two knives. The three-stage material is pushed into the bottom mold 06 hole, and is upset and deformed in the bottom mold 06 hole. The left cutter 02, the right cutter 13 and the head mold needle 01 are reset to the initial position, and the bottom mold needle 07 will be covered. The good three-composite material rod is sent to the front end of the bottom mold, that is, the required position of the contact foot, and the part of the material ...

Embodiment 3

[0016] See Figure 1. After the right cutter 13 cuts the copper material 11 to a length of 2.1 mm, it moves to the position of the silver wire 09. The silver wire 09 is sent to the right cutter 13 through the newly added wire feeding device 08 to cut the length of 0.83 mm. The silver wire 05 The left cutter 02 is sent to the cutting length of 1.2mm through the newly added wire feeding device 08, the left cutter 02 and the right cutter 13 move to the center of the bottom mold 06 and stop at the same time, and the first mold needle 01 cuts the two knives. The three-stage material is pushed into the bottom mold 06 hole, and is upset and deformed in the bottom mold 06 hole. The left cutter 02, the right cutter 13 and the head mold needle 01 are reset to the initial position, and the bottom mold needle 07 will be covered. The good three-composite material rod is sent to the front end of the bottom mold, that is, the required position of the contact foot, and the part of the material ...

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Abstract

Disclosed is a process for preparing copper three composite rivet contacts of bonding sliver and silver alloy, an additional eccentric tube and a set of additional wire-feeders are disposed at one side of a bed die of a 30 type dual composite cold holder, an S lead rail of the 30 type dual composite cold holder is changed to a three-step lead rail to realize the process that one of cutting knives cuts two-section materials. One of cutting knives cuts two-section materials, a first draw stick sends the three composite materials to the bed die, and the three composite materials are continuously upset and deformed in the bed die, thereby completing bonding sliver on the foot portions of the three composite rivet contacts. The method is simple and feasible, and can complete the preparation of copper bonding sliver and three composite rivet contacts of sliver alloy, further, the invention is high in productivity effect and in material utilization.

Description

technical field [0001] The invention relates to a method for preparing a rivet contact, in particular to a method for preparing a three-composite rivet contact of copper covered with silver and silver alloy. technical background [0002] In order to save rare precious metal (silver) resources, some silver-using enterprises have begun to use three-composite rivet contacts. At present, the production process of the known three-composite rivet type contact is as follows: first, the double-composite product is produced by a double-composite rivet contact machine, that is, a 30-type double-composite cold heading machine, and then the silver and silver alloy flat sheet is manually welded to the rivet foot. On the plane of the department, complete the production of three-composite rivet contact products. However, there are three deficiencies in the preparation method of this copper-clad silver and silver alloy three-composite rivet contact: (1) the manual welding efficiency is low...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H11/04
Inventor 金爱军邓子好刘杰召刘映飞马四平
Owner FUDA ALLOY MATERIALS
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