Rubber air bag, also known as concrete precast hollow plate rubber inflatable mandrel, is mainly used in highway bridge concrete pre-tensioned and post-tensioned beam pouring molding engineering. Do you know how to use the inner mold of rubber air bag?

Before using the rubber air bag internal mold, first check that the steel wire joint of the steel cage and the wire rolling head should not bend in the direction of the inner diameter, so as to avoid injuring the core mold and forming air leakage phenomenon.

1, before the use of internal mold, first check the steel cage wire joint and wire rolling head should not bend in the direction of the inner diameter, so as not to hurt the core mold and form air leakage phenomenon.

2. First pour the concrete cushion layer at the bottom of the reinforced cage, and then pull the bridge rubber inflatable mandrel into the reinforced cage with a rope, and make the longitudinal joint face up.

3, open the internal mold valve to the specified pressure, you can close the valve, do not overpressure.

4. The internal mold of the special-shaped rubber air bag should be alternately inflated directly to the specified pressure.

5, the rubber air bag inside the steel cage to be fixed up and down left and right. Overcome upward buoyancy and side to side movement.

6. After concrete is poured, vibrators are used to vibrate from both sides at the same time to prevent the rubber air bag inner mold from moving left and right. And the head of the vibrator segment should not contact the inner mold of the rubber air bag, so as not to break through the air leakage.

7, after the concrete initial setting, open the valve to vent, pull out the rubber bag inner mold can be. (Demoulding time according to the construction situation)

Hebei Samai Technology Co., Ltd. mainly produces sewage water blocking air bags, pipeline blocking air bags, high pressure air bags, repair air bags and disembark air bags and Marine guard strings and other rubber products. The sealing area of the product can reach 100%, the sealing ability is good, and the operation is simple and convenient. Our factory is committed to the research and development of all kinds of industrial air bag products, products are widely used in construction, pipeline drainage engineering, municipal engineering, mining, port, chemical industry, water supply, machinery, military and many other fields and have made achievements. Products are sold to major provinces and cities in China as well as export trade at home and abroad. Welcome the majority of enterprises, users and consumers to contact us, we will be in line with the use of good products, to provide users with good service for the purpose, dedicated to serve you!