Strengthening dowel pins and a manufacturing method thereof that is protected by environmental

摘要

Is concerning the strengthening dowel pin and the production method electric anticorrosion of being done. Regarding one execution form, the strengthening dowel pin the exposure aspect of the longitudinal direction, possesses the stick and the tube which are protected with thickness of sacrifice metal such as zinc, zinc alloy, magnesium, magnesium alloy and aluminum or aluminum alloy. The aforementioned stick and the tube, the steel iron, include the carbon steel or the other iron. Thickness of the sacrifice metal is applied to the aforementioned iron by the various processes of roll connection, the seam patch, welding, die-cast, flame spraying, plasma spraying, dipping, the empty pulling and the pulling out etc. Because of this the strengthening dowel pin which is obtained maintains corrosion tolerance without designating structural one characteristic as sacrifice, material costs and production expense are convenient. Because these dowel pins making use of former method while are installed in the concrete panel which it adjoins, additional expense is not needed in regard to installation.