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-frien

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0007] Example 1: The silver tin oxide wire with a diameter of φ2.38mm was put into a cold heading riveting machine, and an appropriate cold heading speed was adjusted to pre-head it into a φ3.9mm pre-heading ball. This pre-upset ball was annealed at 900°C for 1 hour. It was then cleaned and dried at 300°C for 1 hour. Put the cleaned and dried pre-upset balls into the vibration plate of the rotary rivet stamping machine, adjust the stamping speed to 50 grains / min, so that the pre-upset balls are stamped and formed at the stamping station of the rotary rivet stamping machine. φ5.0mm rivet contact, and then annealing the rivet at 900°C for 1 hour to obtain a soft, crack-free rivet product.

Example Embodiment

[0008] Example 2: The silver tin oxide wire with a diameter of φ2.38mm was put into a cold heading riveting machine, and an appropriate cold heading speed was adjusted to pre-head it into a pre-heading ball with a diameter of 3.9mm. This pre-upset ball was annealed at 150°C for 8 hours. It was then cleaned and dried at 110°C for 6 hours. Put the cleaned and dried pre-upset balls into the vibration plate of the rotary rivet stamping machine, adjust the stamping speed to 30 grains / min, so that the pre-upset 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 rivet product.

Example Embodiment

[0009] Example 3: The silver tin oxide wire with a diameter of φ2.38mm was put into a cold heading riveting machine, and an appropriate cold heading speed was adjusted to pre-head it into a pre-heading ball with a diameter of 3.9mm. This pre-upset ball was 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-upset balls into the vibration plate of the rotary rivet stamping forming machine, and adjust the stamping speed to 40 grains / min, so that the pre-upset balls are stamped and formed at the stamping station of the rotary rivet stamping and forming machine. φ5.0mm rivet contact, and then annealing the rivet at 525°C for 4.5 hours to obtain a soft, crack-free rivet product.

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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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