Excessive scrap rate of concrete water pipes in use

Concrete water pipes are machined from high quality steel plates to support sandless pipe moulds. Under the platform is a high-motion vibration box designed by our company, which uses customized springs as support. A high-tech motor is used to drive the vibration box to work, causing the spring and platform to vibrate and jump. The vibration box adopts our factory's internal patented design with long service life and high kinetic energy conversion rate. The outer mold is rolled from thickened steel plate, and the inner mold is made of seamless export-type steel pipe. The outer wall is extremely smooth, which has won the favor of a large number of customers. The outer mold adopts U-shaped card locking technology, which is easy to disassemble, and is equipped with a special outer mold base plate, which is combined with a hydraulic boost module and light lifting equipment to greatly reduce the demoulding waste rate.

Our company has done a lot of work in the initial R&D and testing phase of sandless pipe equipment in order to reduce the excessively high scrap rate used by customers. Since the use method of the equipment is completely different from that of centrifugal well pipe equipment, and the key points are different, so our company has provided professional training to customers on this equipment. , and arrange technical personnel to conduct unified training for production personnel when the equipment is used, to reduce unstable factors in customer use, to constantly improve deficiencies from the user's perspective, to provide customers with high-quality services, and to stay ahead of users to solve their worries when using new equipment.

Choose high-quality sand: generally use medium sand, which has good workability and impermeability in concrete, but the concrete strength is low and it is easy to collapse during pipe making; the sand is coarse, and the concrete has poor workability and good impermeability, but has high mixing strength and is not easy to collapse during pipe making. The choice of sand rate is also very important. A high sand rate means that concrete has good workability, good formability, and anti-permeability, but the concrete in pipe making is easy to collapse. Small-diameter hanging roller pipes use pebbles or crushed pebbles to reduce the frictional resistance on the surface of the stones and make the concrete easier to compactly form. Large-diameter hanging roller pipes should use machine-crushed stones to take advantage of the rough surface of the stones and the ease of embedding each other to reduce the possibility of concrete collapse. It is advisable to use ordinary Portland cement with the label number 425. The cement pipe making machine uses dry hard concrete because the suspension roller pipe making machine uses dry hard concrete. The water cement mixed is relatively small. The dry shrinkage volume of the cement changes little.

Cement pipes have good seismic resistance. The pipe foundation is made of sand and gravel foundation or concrete foundation, and the installation speed is fast. After the cement pipe is drilled, place the cement pipe and mold in the open air for natural curing. Generally, after the cement pipe is drilled, it takes one day for open-air curing before the mold can be opened. After the mold is opened, it also needs 4-6 days of natural curing. A dedicated person needs to spray water on the cement pipe three times a day, usually once in the morning and afternoon. The purpose of water spraying is to maintain the humidity of the cement pipe so that the concrete can slowly solidify by itself. The number of water sprays can also be increased or decreased according to the weather conditions and humidity.