A, concrete pipe specifications
A pipe made of concrete or reinforced concrete. Used for conveying fluids such as water, oil and gas. Concrete pipes are divided into plain concrete pipes, ordinary reinforced concrete pipes, self-stressing reinforced concrete pipes and prestressed concrete pipes. According to the different inner diameters of concrete pipes, they can be divided into small-diameter pipes (the inner diameter is below 400 mm), medium-diameter pipes (400 ~ 1400 mm) and large-diameter pipes (above 1400 mm). According to the different water pressure bearing capacity, pipelines can be divided into low-pressure pipelines and pressure pipelines, and the working pressures of pressure pipelines are generally 0.4, 0.6, 0.8, 1.0, 1.2 MPa, etc. Compared with steel pipes, concrete pipes can be divided into flat pipes, socket pipes and tongue-and-groove pipes according to different types of pipe joints. ? Its interface forms include cement mortar plastering interface, steel wire mesh cement mortar plastering interface, cement mortar socket, rubber ring socket, etc.
The forming methods of concrete pipe include centrifugation, vibration, rolling, vacuum operation and the combined action of rolling, centrifugation and vibration. In order to improve the performance of concrete pipes, China and many other countries have developed more prestressed concrete pressure pipes. This kind of pipeline is equipped with longitudinal and circumferential prestressed steel bars, so it has high crack resistance and impermeability. In 1980s, China and some other countries developed self-stressing reinforced concrete pipes. Its main feature is that self-stressing cement (see special cement) generates prestress in the hardening process, which simplifies the manufacturing process. Compared with steel pipe, concrete pipe can save a lot of steel, prolong its service life, with less investment and convenient installation. It has been widely used in factories, mines, oil fields, ports, urban construction and farmland water conservancy projects.
Second, the concrete pipe manufacturers
1, jiande city Genglou Cement Pipe Factory was founded in August 1992. It is located at Zhangjiacun, Genglou Street, jiande city, with convenient transportation. The factory covers an area of more than 40 mu, with more than 70 employees and professional technicians 15. It has more than 40 sets of advanced pipe-making machinery and equipment, and the supporting professional equipment is complete. * * * has fixed assets of more than 25 million yuan, with an annual output value of more than 50 million yuan.
2. Nantong Hua Ze Prefabricated Component Co., Ltd. is an enterprise specializing in producing various specifications of reinforced concrete drainage pipes and precast reinforced concrete square piles. Its products are widely used in municipal engineering, water supply, drainage, sewage discharge, farmland irrigation and building foundation materials. The company was established in early 2009, with a total investment of 20 million yuan, covering an area of more than 60 mu and more than 30 professional and technical personnel. The company has a national industrial product production license issued by the state, a complete quality assurance system and professional testing equipment recognized by the state.
3、? Zhejiang Jutong Pipe Industry Co., Ltd. was established in March, 2003. It is located next to the government of Zhanjia Town, Longyou County, Quzhou City, Zhejiang Province, close to National Highway 320 and 5 kilometers away from Longyou City. After more than ten years of development, the business scale of the company has expanded rapidly, the technical force has been continuously strengthened, and the management level of the enterprise has been continuously improved. Existing fixed assets of more than 50 million yuan, covering an area of more than 60,000 square meters. The company has successfully passed ISO900 1:2008: 2008 international quality management system, ISO14001:2004+0: 2004 environmental management system, GB/T28001-20/KLOC-0.
From the consumer's point of view, the specification introduction of concrete pipes and the knowledge recommended by manufacturers are given above, from which it is known that qualified and reliable concrete pipes must be the products of mature manufacturers with mature quality and scale, rather than the materials manufactured on ordinary technical assembly lines. Therefore, if you are a friend without professional basic knowledge or purchasing experience, don't worry at all. We only need to refer to the recommendations similar to the above, and we can harvest satisfactory concrete pipe products.
Tubatu Online provides you with "every decoration quotation, 1-4 local decoration companies, 3 sets of decoration design schemes" and the decoration pit avoidance strategy for free! Click this link:/Zhu Ye /zxbj-cszy.php? to8to _ from = SEO _ zhidao _ m _ jiare & amp； Wb, you can get it for free ~