2results about How to "Thickness effect" patented technology

The invention relates to a split type sleeve steel bar connecting structure which comprises two steel bars to be connected and a split type sleeve. Expanded heads are arranged at the ends of the steel bars; the split type sleeve comprises more than two sections of sleeve body units which are divided along the axial direction of the sleeve and a tightening sleeve which hoops the sleeve body units together; the cylinder body units are mutually spliced to form a complete cylinder body, the expansion head is buckled in the cylinder body, and the size of the port of the buckled sleeve is smaller than that of the expansion head; and the tightening sleeve is rotationally clamped on the peripheral surface of the cylinder body, so that the expanding head is clamped in the sleeve, and the connection of the two reinforcing steel bars is realized. The connecting structure adopts mechanical connection which is more reliable than grouting connection, quality inspection can be carried out, and the connection is proved to be effective as long as the tightening sleeve is tightened. The structure is simple to operate, does not need special process or equipment, only needs manual operation, is not influenced by factors such as weather and construction electricity, and improves the construction efficiency.

A casting coating sagging property tester comprises a base, a placing piece is arranged on the base, a sample is arranged on the placing piece, and a scraping piece is movably arranged on the placing piece. When the sagging property of the casting coating is tested, a standard sample pressing template is provided, the blade coating surface of the molding sand casting template is ensured to be flat and compact in a pressing and scraping manner before casting, and the molding sand casting template can be protected through the provided mold, so that the service life of the molding sand casting template is prolonged, and the service life of the molding sand casting template is prolonged. And the problem of slag falling or damage of the molding sand casting template in the blade coating process is avoided, so that the sagging property test is not influenced. Wherein the dropped molding sand slag is doped in the coating due to the occurrence of the slag dropping problem, so that the uniformity of the blade coating thickness of the casting coating is influenced.