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SUSPENSION FOR IMPROVING THE CORROSION INHIBITION OF STEEL, METHOD FOR PROTECTING STEEL FROM CORROSION AND USES OF THE SUSPENSION
SUSPENSION FOR IMPROVING THE CORROSION INHIBITION OF STEEL, METHOD FOR PROTECTING STEEL FROM CORROSION AND USES OF THE SUSPENSION
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机译:改善钢的腐蚀抑制作用的悬浮液,一种从腐蚀中保护钢的方法以及该悬浮液的用途
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摘要
The present invention provides a suspension and method for improving the corrosion protection of substrates which comprise or consist of steel. It has been discovered that if an organic derivative of a bentonite clay and a modified urea are added to a dispersion of flakes of Zn, Al and/or Mg, or alloys thereof, the resulting suspension demonstrates a rheological profile which is ideally suited for coating steel substrates. In fact, the inventive suspension enables coating with a high consistency of performance. The performance of the suspension is already reached after one coating process i.e. even after a dip/spin coating process is conducted only one once. In conclusion, steel substrates can be provided with a high-quality corrosion resistant coating in a more economical way compared to the prior art.
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