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Environment-friendly silver metal oxide rivet touch head producing method

An oxide, environmentally friendly technology, applied in the direction of nails, furnace types, mechanical equipment, etc., can solve the problem of cracks easily caused by rivets, and achieve the effect of overcoming low processing plasticity, reducing deformation, and simple process control

Inactive Publication Date: 2007-09-12
FUDA ALLOY MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the above-mentioned defects in the existing known technology, provide an environment-friendly silver metal oxide rivet contact preparation method, and solve the problem that silver metal oxide rivets are prone to cracks when they are made.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0007] Embodiment 1: Put the silver tin oxide wire material with a diameter of φ2.38mm into a cold heading riveting machine, adjust the appropriate cold heading speed to pre-upset it into a pre-upsetting ball with a diameter of φ3.9mm. The pre-headed balls were annealed at 900°C for 1 hour. Then it was cleaned and dried at 300°C for 1 hour. Put the cleaned and dried pre-upsetting balls into the vibrating plate of the rotary rivet stamping machine, adjust the stamping speed to 50 grains / minute, so that the pre-upsetting balls are stamped and formed at the stamping station of the rotary rivet stamping machine φ5.0mm rivet contact, and then anneal the rivet at 900°C for 1 hour to obtain a soft crack-free finished rivet.

Embodiment 2

[0008] Embodiment 2: Put the silver tin oxide wire material with a diameter of φ2.38mm into a cold heading riveting machine, adjust the appropriate cold heading speed to pre-upset it into a pre-upsetting ball with a diameter of φ3.9mm. The pre-headed balls were annealed at 150°C for 8 hours. Then it was cleaned and dried at 110°C for 6 hours. Put the cleaned and dried pre-upsetting balls into the vibrating plate of the rotary rivet stamping machine, adjust the punching speed to 30 grains / minute, so that the pre-upsetting balls are stamped and formed at the stamping station of the rotary rivet stamping machine φ5.0mm rivet contact, and then anneal the rivet at 150°C for 8 hours to obtain a soft crack-free finished rivet.

Embodiment 3

[0009] Embodiment 3: put the silver tin oxide wire material with a diameter of φ2.38mm into a cold heading riveting machine, adjust the appropriate cold heading speed to pre-upset it into a pre-upsetting ball with a diameter of φ3.9mm. The pre-headed balls were annealed at 525°C for 4.5 hours. It was then cleaned and dried at 205°C for 3.5 hours. Put the cleaned and dried pre-upsetting balls into the vibrating plate of the rotary rivet stamping machine, adjust the stamping speed to 40 grains / minute, so that the pre-upsetting balls are stamped and formed at the stamping station of the rotary rivet stamping machine φ5.0mm rivet contact, and then anneal the rivet at 525°C for 4.5 hours to obtain a soft crack-free finished rivet.

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PUM

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Abstract

The process of making environment friendly silver metal oxide rivet contact includes the following steps: pre-upsetting the silver metal oxide wire in a cold upsetting machine to form upset ball, annealing in an air annealing furnace, washing and stoving, punching the upset ball in a rotary rivet forming punch to form the metal oxide rivet contact, and high temperature annealing to obtain soft environment friendly silver metal oxide rivet contact without cracking.

Description

Technical field: [0001] The invention relates to an environment-friendly silver metal oxide (such as silver tin oxide, silver tin oxide indium oxide, silver copper oxide, silver zinc oxide, etc.) rivet contact preparation method. Background technique: [0002] Known silver metal oxide rivet contacts such as silver tin oxide rivet contacts are prepared in the following two ways: (1) general silver tin oxide rivets are made of silver tin oxide wire material on a cold heading rivet machine. Silver tin oxide rivets. Generally speaking, the diameter of the rivet head is twice the diameter of the nail foot, so the deformation of the silver tin oxide wire at the nail head position is very large, which makes it possible to use silver tin oxide wire with low processing plasticity. There are cracks of different sizes and lengths on the edge of the head of the silver tin oxide rivet, which seriously affects the performance of the rivet. (2) There is also a silver tin oxide rivet, whi...

Claims

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Application Information

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IPC IPC(8): B21G3/18B21G3/32C21D9/36C21D11/00
Inventor 张明江王达武柏小平刘杰召李国伟
Owner FUDA ALLOY MATERIALS
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