Process parameters Regardless of the type of strengthening technology, the goal is to achieve a consistently constant, repeatable strengthening strength. Therefore, it is important to understand which key variables in the process will affect the final enhancement results, including: Centrifugal force shot peening, throwing head, throwing speed, throwing speed, throwing angle, throwing position, directional sleeve movement, direct pressure shot peening, nozzle, nozzle size, injection pressure, spray angle, nozzle movement, multiple nozzle These process variables all affect the final effect: The diameter of the head determines the speed at which the steel pellets are ejected at a certain angle. At the same head rotation speed, a 17.5" diameter throwing head produces a steel shot speed greater than a 14" diameter throw head, resulting in a higher strength of reinforcement. The horsepower of the head determines the number of steel shots that are fired per unit time. The throwing head is directly driven by the inverter. By changing the frequency of the motor, the rotation speed of the throwing head can be changed, thereby changing the initial speed of the steel shot. The throwing head is usually fixed at a specific position in the blast chamber, but the direction of the projection can be changed by adjusting the position of the directional sleeve. The position of the directional sleeve ultimately determines the angle at which the steel shot is thrown by the throwing head. Other process parameters that affect shot peening results include: Steel pellet flow Steel pellet size Size consistency The flow rate of the pellets is controlled by a dedicated flow control valve. In the shot peening equipment, the control valve is installed in the throwing feed area, and the flow rate of the steel shot entering the throwing head through the valve is adjusted by adjusting the opening of the flow control valve; in the shot peening apparatus, the pellet control valve Installed in the pressure tank outlet area. A vibrating screen filters the pellets and screens out the pellets of acceptable size to ensure that the steel pellets used in the strengthening process are of uniform size to achieve a stable strengthening effect. The size of the steel shot (or shred) will directly affect the coverage and strengthening time. The general rule is that The diameter of the steel shot is small, the residual stress generated on the surface of the workpiece is high, but the strengthening layer is shallow. The diameter of the steel shot is large, and the residual stress generated on the surface of the workpiece is low, but the strengthening layer is deep. Leaf spring reinforcement The leaf spring can be individually reinforced by a continuous pass shot peening device to expose the leaf spring geometry concave surface under high speed pill flow. A typical model consists of a throwing head for projecting the top of the leaf spring, with a throwing head on the side and spraying the left and right sides of the leaf spring. The standard leaf spring reinforcement unit has a 10 ft/min pass rate. If a higher production speed is required, the number of throws can be increased and the motor frequency can be adjusted. Under working conditions, the leaf spring is repeatedly affected by uniaxial bending stress and is therefore sometimes stress-strengthened. In the strengthening process, the simulated leaf spring will be subjected to "stress strengthening" in the future use, so that it can be shot peened while applying a "static stress" in the direction of the load. After the strengthening is completed, the applied static stress is released. Experiments have shown that stress strengthening can extend the service life of leaf springs more than conventional strengthening. Previous Next Flood Light LED.Flood Lights Outdoor,Flood Light Solar China Searun Solar Solution Co., Ltd. , https://www.searunsolar.com
Torsion bars are also suitable for reinforcement with continuous pass-through equipment