Classification Of Geomembranes

Geomembrane type and manufacturing principle, pond liner textured hdpe geomembrane made in china is a relatively impervious geosynthetic material. According to different raw materials, it can be divided into two categories: polymer and asphalt. In order to meet different strength and deformation needs, there is no reinforcement. Reinforcement classification, according to the production process classification of geotextiles, can be divided into blow molding geomembrane, calendering geomembrane, extrusion geomembrane.

A. Blow molding geomembrane.
The blow molding method is also called the tube film method. The blow molding method can be defined as the resin is melted and plasticized by the extruder, and then extruded through the annular die to form a thin-walled tube blank, which is inflated, cooled, and cut open. The geomembrane obtained by flattening is a blown geomembrane.

The principle of blow molding geomembrane manufacturing: the polymer and its auxiliary agent are put into the externally heated extruder through the hopper of the extruder, and then the screw, the compression, the metering action of the screw rotating through the extruder will be The material is melt-plasticized, and the tube blank in a molten state is extruded from an annular die. After the outlet end of the tube, blank is melted, compressed air is blown from a vent hole in the center of the mold, and the tube is produced by a geomembrane manufacturer. Gradually expanding under the action of compressed air, at the same time, the outside of the tube blank is forcedly cooled. At this time, the end of the tube blank is forced to move at a uniform speed. At this time, a continuous cylindrical geomembrane can be obtained. The geomembrane is cut open and flattened to obtain a film (sheet) shape.

B. Calendering geomembrane.
A calendering geomembrane can be defined as a method in which a thermoplastic plasticized plastic is passed through two or more counter-rotating rolls to form a predetermined size and used for a geomembrane (or sheet) of geotechnical materials, calendering geotechnical The high polymer material used in the membrane mainly refers to the classification of polyvinyl chloride and calendered geomembrane: the calendering geomembrane can be divided into a single layer of polyvinyl chloride geomembrane, a double layer of polyvinyl chloride composite geomembrane and a meshed polyvinyl chloride composite geomembrane.

Color Galvanized Coil

The hot sale prepainted color galvanized coil is to prevent corrosion on the surface of steel plate and prolong its service life. A layer of metal zinc is coated on the surface of a steel plate. This kind of galvanized thin steel plate is called cheap PPGI prepainted galvanized steel coil. Galvanizing is an economical and effective anticorrosive method which is often used. About half of the world's zinc production is used in this process.

High quality prepainted color galvanized coil products are mainly used in construction, light industry, automobile, agriculture, animal husbandry, fishery and Commerce industries.

1. The construction industry is mainly used to manufacture anti-corrosion industrial and civil building roof panels, roof grilles and so on.
2. Light industry uses it to make household appliances, chimneys, kitchen utensils, etc.
3. The automobile industry is mainly used to manufacture corrosion-resistant parts of cars, etc.
4. Agriculture, animal husbandry and fishery are mainly used for grain storage and transportation, meat and aquatic products frozen processing equipment, etc.
5. Commerce is mainly used as storage and transportation of materials, packaging equipment and so on.

What Is The Benefits Of Galvanized Steel?

In recent years, with the emphasis on dust suppression in China, the application of dust suppression networks has increased. Basically, the wind and dust suppression nets are mainly made of high quality GL galvanized steel coils. It has also been mentioned that rust prevention of galvanized sheets is also mentioned. Better performance and the need for galvanized sheets for wind and dust screens. So which of these two materials is better?

The difference between the two is the difference in surface

The difference between hot sale galvanized steel coil and high quality GL Galvanized Steel Coil is mainly due to the difference in the coating. The surface of the galvanized sheet is evenly distributed with a layer of zinc material, which has an anodic protection effect on the substrate, that is, the zinc material replaces the substrate to corrode and rust. The metal is protected and the internal substrate is damaged only when the zinc is completely corroded.

The surface of the aluminum zinc steel coil in stock is about 55% aluminum, 43.5% zinc and a small number of other elements. Under the watch, the surface of the galvanized layer is a honeycomb structure, and the "honeycomb" made of aluminum is wrapped with zinc. In this case, although the aluminum-zinc plating also functions as anode protection, on the one hand, since the zinc content is reduced, on the one hand, the zinc material is wrapped with aluminum, and electrolysis is not easily generated. Therefore, the effect of the anode protection is greatly reduced, so once the galvanized sheet is cut and substantially loses protection at the cutting edge. In this case, it will rust quickly, so the galvanized sheet should be cut as little as possible.

Galvanized Steel Coil made in China is the metal materials we often use. Galvanized sheets for wind and dust screens are hot dip galvanized sheets. The hot dip galvanizing treatment will cover the surface layer of the steel sheet having a thin zinc layer. Effectively prevents air and moisture from entering and prevents an internal substrate from rusting.

In cities where the air is humid and the rain is abundant, once a certain point of the galvanized sheet is rusted, if the measures are not taken in time, the rust will become larger and larger until the entire surface; and the high-quality GL galvanized steel coil will rust evenly and will not cause diffusion.

After comparing the two, it can be seen that the Galvanized Steel Coil made in China is superior in terms of service life and corrosion resistance, and the price of the galvanized sheet is also lower than that of the galvanized sheet. Therefore, it is recommended that you choose windproof and dustproof. The material of the mesh should be galvanized as much as possible.

Common Type Of Cold Rolled Coil

The high quality cold rolled steel coil china: cold-rolled from ordinary carbon structural steel or low-alloy structural steel into cold-rolled sheet with good surface quality and good punching performance. It is required to enise that the cold bend and cup test are qualified for the raw materials of the automotive industry and the coated board.

Cold-rolled high-quality steel coil: mainly including various high-quality steel cold-rolled coils, the most commonly used carbon-structured steel sheets, especially cold-rolled steel sheets for deep-drawing are made of low-carbon high-quality steel 08Al cold-rolled coil steel according to surface quality. The three groups I, II, and III respectively indicate that the special advanced, advanced, and high finishing surfaces are classified into ZF, HF, and F grades according to the drawing level. According to the allowable deviation of the thickness of the steel plate, it is further divided into two grades A and B, which are widely used in the automobile tractor industry.

Cold-rolled steel coil: Excellent surface finish for household appliances such as automobiles, refrigerators, washing machines, industrial equipment, and various building materials. With the economic development, cold-rolled steel coils have been called essential materials for modern society.

Roof Steel Sheet Application

1. Wholesale GL steel sheet has sound insulation, good thermal insulation performance - porous foam core layer has good sound insulation and thermal insulation properties
2. Large area, lightweight - light body materials, reduce building load
3. Rich in color, long-lasting stability - fluorocarbon paint coating, rich in color, smooth surface, acid and alkali resistance, mildew, rain as new
4. High toughness and high strength - better toughness and strength than similar products
5. Convenient construction--The product can be directly nailed, drilled, sawed, planed, and easily handles special roof shapes such as façades and arc windows.
6. Good fire performance - material resistance to burning grade B1, is a flame retardant material

China Galvanized Steel Roofing Sheet manufacturer
Shandong HENGZE New Material Co., Ltd.
Address: High Technology Industrial Development Zone, Taian, China
Contact: Elijah Wen
Contact number: +86 0538-6624686
Mobile: +86 18905380622
Fax: +86 0538-6624686
E-mail:export04@sdhengzesteel.com