金属熔射膜の密着度におよぼす前処理面の粗さと前処理後の大気中放置の影響

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タイトル別名
  • The Effects of Surface Preparation for Metal-Spraying on the Adherence of Sprayed Coatings to the Base
  • キンゾクヨウシャ マク ノ ミッチャクド ニ オヨボス マエ ショリ メン ノ アラサ ト マエ ショリ ゴ ノ タイキ チュウ ホウチ ノ エイキョウ

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抄録

In order to clarify the effects of surface roughness of grit-blasted base metal and time of exposure to air after blasting on the adherence of sprayed zinc coatings to the base metal, the bent angle of steel sheet specimens which have two notches was measured by a bending tester as specified in JIS. The following results were obtained: (1) There is a linear relation between the adherence of sprayed coatings and surface roughness of base metals. The coarsely blasted surface has higher strength of adhesion than the finely blasted surface. (2) The adherence-exposure time curve is approximately represented by a parabolic curve, therefore, the strength of adhesion decreases rapidly at the initial period of exposure. It is desirable to apply spray coatings within 150 minutes after blasting in order to ensure good adhesion. (3) When fine blasting is applied, the influence of exposure time is not remarkable, but when coarse blasting is applied, the influence is evident.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 23 (9), 503-505, 1959

    公益社団法人 日本金属学会

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