鋳鉄の拡散接合の研究

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書誌事項

タイトル別名
  • A Study of Diffusion Bonding for Cast Iron
  • チュウテツ ノ カクサン セツゴウ ノ ケンキュウ

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抄録

Diffusion bonding is a technique which can produce joints in the solid state. Initially, metal members are placed in intimate contact under some pressure. Then, heating these samples to a sufficient high temperature for a suitably long time, the atoms begin to migrate across the interface. So the diffusion bonding is accomplished. In this report, an applied method of diffusion bonding cast iron in the air. This method has been considered difficult over the past years. Experiments are made varying the conditions such as pressure, temperature, time interval, surface unevenness and roughness. Then the following results are obtained. It is possible to join cast iron in the air by diffusion bonding. The shapes of voids near the joint interface are closely related to the tensile strength of joints. Bonding pressure has influence on the plastic deformation of surface unevenness, and assure intimate interfacial contact, but gives no effect to diffuse the atoms. Surface preparation has an important effect to the tensile strength. Especially, when the bonding surfaces are exposed to the air, they are oxidized and poor strength is obtained.

収録刊行物

  • 精密機械

    精密機械 45 (530), 124-129, 1979

    公益社団法人 精密工学会

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