Introduce The Specific Steps For Assembling Cement Pipe Molds

1. The dimensional tolerance of the assembled pipe mold should be less than the allowable deviation requirements for the dimensions of each component of the pipe of that specification. There should be no noticeable gap between the two ends and the joints, and the fasteners connecting the various components should be secure and reliable.
2. The base plate of the vertical vibration and core vibration forming pipe molds should be flat. Sealing measures should be implemented between the inner and outer molds, the base plate, and the joints. The inner and outer molds should be perpendicular to the base plate and accurately positioned.
3. The inner wall of the pipe mold should be cleaned to remove any residual cement slurry residue. The inner wall of the pipe mold, the retaining ring, and the base plate should all be coated with a release agent.
4. The release agent can be grease, emulsified grease, or rosin soap. The basic requirements are that it will not stick to or contaminate the pipe wall, has good film-forming properties, is easy to apply, and has strong adhesion to the steel mold.
5. Wax demolding. The wax layer on the inner wall of the pipe mold should be formed using a centrifugal method. The wax layer should be uniform in thickness and have a smooth surface. The inner diameter of the wax layer should meet the outer diameter of the pipe. Choose paraffin wax with different melting points depending on the region and seasonal temperature. Generally, pure tallow with a melting point above 54°C is used. The wax liquid temperature should be no lower than 54°C. During high summer temperatures, the tallow layer should be cooled to maintain a certain level of hardness. During low winter temperatures, the mold should be preheated to prevent the wax layer from cracking.
6. Before installing the steel bar into the mold, ensure the correct dimensions and uniform and accurate gaps between the protective layers. The steel bar should generally not be loose within the assembled mold. When using wax for demolding, protective measures should be taken to prevent the wax from scratching the steel bar when it is inserted into the mold.