Brief description of disassembly and assembly process of pipe pile molds

The assembly process of pile mold is mainly divided into three major parts: disassembling mold, preparation before using the mold and assembling the mold respectively. I. Disassemble the mold (referred to as disassemble the mold) When the pile and the pile mold complete the atmospheric pressure curing, and the concrete strength reaches the demoulding strength (45MPa), the mold can be disassembled, so that the pipe pile mold and the tensioning device can enter into the next production cycle as soon as possible to improve the utilization rate of the pipe pile mold. The disassembled pile will be sent to autoclave for high pressure steam maintenance. Preparation before using the mold Pile molds are used repeatedly in the production cycle. When the molds are used in the previous production cycle and the piles are disassembled, the molds will be lifted back to the assembling area to prepare for the next production cycle. The molds need to be prepared before the skeleton is installed so that the molds meet the requirements to enter production again. The preparation consists of 3 steps: mold cleaning, spraying release agent and checking the clamping bolts. Pile mold cleaning work, mainly clean the inner wall of the steel mold and the mouth of the enterprise residual debris, to ensure that the steel mold before going into production to meet the clean requirements. The inner wall should be clean and free of debris, no rust stains, no grooves, cracks, etc., to avoid the appearance of pipe pile quality problems. Spraying release agent is arranged after the mold cleaning, spraying release agent evenly and fully on the inner wall of the upper and lower semi-circular molds of the pipe pile molds, to ensure the formation of a complete, continuous and even thickness of release coating in the inner wall, to avoid the concrete sticking to the mold during the hydration reaction, and to facilitate the smooth separation of the pipe pile from the mold during the demolding process. When checking the clamping bolts, make sure that the clamping bolts bolted on the mold are intact and can work normally. The clamping bolts should ensure that the upper and lower molds are closed firmly and can withstand the lifting and high-speed centrifugation of the molds without loosening. Pile mold assembly When the pile mold is ready and the steel skeleton is finished, it will enter the mold assembly process: the steel skeleton will be assembled with the pipe pile mold and tensioning device. The work of mold assembly is mainly to suspend the steel skeleton in the lower half-circle of the mold, install the tension baffle and head-tail plate of the mold in the end plates of both ends of the skeleton, and fasten the tension screws of the head-tail plate, so as to make the skeleton and the mold fixed as a whole. Some of the pile enterprises adopt the improved process of clamping fabric such as pumping or screw feeding, at this time, the mold installation also needs to close the upper semi-circular mold to the lower semi-circular mold in advance, and tighten all the clamping bolts on both sides, which is also known as clamping the mold in advance, which is included in the assembly process.