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Fiberglass Tubes Effective Resistance To Acid
- Oct 19, 2017 -

Fiberglass Tubes Effective resistance to acid

Fiberglass tube corrosion resistance is good, because the main raw material of glass fiber reinforced polymer components of unsaturated polyester resin and glass fiber composition, can effectively resist the acid, alkali, salt and other media corrosion and untreated domestic sewage, corrosive Soil, chemical waste water and a large number of chemical liquid erosion, in general, to maintain long-term safe operation.

There are three main types of glass fiber tube production process: reciprocating fiber winding process, continuous fiber winding process and centrifugal casting process.

1. Continuous fiber winding process (belonging to continuous method):

The process is a feeding station in which the tube is pre-impregnated with a resin-pre-impregnated roving, chopped glass fiber and resin sand, and the tube is made in a continuous advancement of the core.

2. Reciprocating fiber winding process (belonging to the fixed length method):

In this process, the dip tank is reciprocated with the rotating core mold, the long fiber glass wire is fixed at a certain bevel angle relative to the mandrel axis, and the auxiliary angle (i.e., the winding angle) is moved by the speed of the dip tank and the core The rotational speed ratio of the dip is controlled by a computerized machine-electric control. The number of layers is gradually increased, to achieve the design of the wall so far. After the winding is completed, the resin in the product is substantially cured. After curing, the mandrel is removed from the FRP.

3. Centrifugal casting process (belonging to the fixed length method):

In this process, with the cut glass fiber reinforced materials and sand, feeding fixed in the bearing on the steel mold, in the steel mold at one end into the catalyst with unsaturated resin impregnated with reinforced materials, under the action of centrifugal force, The resin displaces the fibers and the air in the packing to produce a non-porous, dense composite material that forms a smooth, smooth, resin-rich inner surface layer due to centrifugal force. The tube solidifies at higher temperatures. The tube made in this way is also called glass fiber reinforced plastic sand pipe.

The world's use of reciprocating fiber winding process tube manufacturers than the other two production process manufacturers and more, one of the reasons is the reciprocating fiber winding process manufacturing glass fiber reinforced plastic has a wider range of applications, the applicability is better. Fiberglass pipe with its unique advantages in the oil, electricity, chemicals, paper, urban water supply and drainage, factory sewage treatment, desalination, gas transportation and other industries has made a wide range of applications. With the acceleration of urbanization in China, in the face of the balance and protection of population, resources and environment, governments at all levels have increased their investment in urban infrastructure every year, combined with advanced science and technology needs, pipe and pipe fittings, Production continues to increase, the quality of continuous improvement, especially the development of plastic pipe faster, become today's investment hot spots. Glass fiber tube is one of them.