3results about How to "Control stress" patented technology

The invention discloses a method for controlling the C-shaped warping defect of eighteen-roller single-stand high-strength steel, and belongs to the technical field of solving the C-shaped warping defect of a steel plate. The method comprises the following steps: carrying out hot rolling, acid pickling and eighteen-roller reversible rolling on a descaled plate blank of a casting blank, the roller diameter difference between the upper roller diameter and the lower roller diameter of the middle roller of the eighteen-roller reversible rolling mill ranges from 2 mm to 5.5 mm, and the lower roller diameter is larger than the upper roller diameter. According to the method for controlling the C-shaped warping defect of the eighteen-roller single-stand high-strength steel, the roughness of the working rollers, the roller diameter difference of the middle rollers, the rolling force of the rolling mill and the strip steel tension are strictly controlled, the plate shape and stress problems in the rolling process are effectively controlled, and finally the warping height is controlled to be within the range of + / -(0.35-0.5) mm / m.

The utility model relates to the technical field of danger removal of a danger water gate, and discloses a side slope protective surface reinforcing structure for danger removal and reinforcement of the danger water gate, which comprises a side slope, a side slope reinforcement cage is arranged on the slope surface of the side slope, a plurality of anchor cables are arranged on one side, close to the side slope, of the side slope reinforcement cage, each anchor cable comprises an anchor head, and a steel cable body is arranged at the top of each anchor head. A locking mechanism for preventing the steel cable body from being adjusted back is arranged on one side of the anchor head, the locking mechanism comprises a protective shell fixed to one side of the anchor head, a mounting groove is formed in the top of the anchor head, and rotating rods are rotationally connected to the two sides of the inner wall of the mounting groove. Under the action of the ratchet wheel and the pawl, the steel cable body can only move in one direction, and therefore stress loss caused by callback of the steel cable in the adjusting process is avoided. The stability and reliability of the anchor cable in the using process are guaranteed, the anchoring effect can be improved by effectively controlling the stress of the steel cable, and it is guaranteed that the structure is more stable under the load.

The application discloses a kind of solid wood board hot-pressing drying method, belong to timber processing technical field.Solid wood board hot-pressing drying method includes the following steps: solid wood board is placed on hot press;Hot press includes the upper pressing plate and lower pressing plate oppositely arranged along vertical direction, and left side pressing plate and right side pressing plate arranged along horizontal direction;Solid wood board is preheated;Upper pressing plate and lower pressing plate are heated to hot-pressing temperature;After upper pressing plate and lower pressing plate reach hot-pressing temperature, control upper pressing plate and lower pressing plate to exert radial pressure on solid wood board, left side pressing plate and right side pressing plate exert chordal pressure on solid wood board;When the moisture content of solid wood board reduces to below moisture content threshold, pressure is released and dried solid wood board is taken out.The application simultaneously exerts radial and chordal pressure during drying process, combined with the synergistic control of pressure and temperature, effectively controls wood deformation and stress during drying process, thereby inhibiting wood shrinkage, cracking and deformation problems.