| 摘要 |
<p>1. TITLE OF INVENTION Monitor Assembly for Electrochemical Corrosion Protection of Stainless Steel Bleach Plant Washers 2. A monitor assembly is provided for monitoring the effectiveness of electrochemical crevice corrosion protection of a stainless steel member. The assembly comprises the combination of a number of elements namely, a mount electrically connected and secured to a stainless steel member; an electrically non-conductive sleeve disposed on the mount; a frusto-conical centrally apertured metal spacer disposed on the sleeve in electrical contact with the mount; a stainless steel centrally apertured monitor coupon disposed on the sleeve in electrical contact with the spacer; a segmented electrically non-conductive centrally apertured disc disposed on the sleeve in non-electrical contact with the monitor coupon; a second spacer, identical with the first disposed in non-electrical contact with the disc; a second monitor coupon identical to the first in contact with a second spacer; a second disc identical with the first disposed in the same way with the second monitor coupon; and, a centrally apertured locknut threaded onto the mount and holding the members on the sleeve under a predetermined, substantially constant mechanical stress. The face-to-face contact of the first coupon with the first spacer and the first segmented disc is identical to the face-to-face contact of the second coupon with the second spacer and the second segmented disc.</p> |
