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	Title	Category
add to favorites	Color steel sheet factory introduction	Cars
Near the construction site, we often see some "small houses." This "small house" is a movable board house made of color steel plates. The simple place not only allows construction workers to have a better rest, but also anti-corrosion function. Today, China Hengze Steel, as a color-coated corrugated roofing sheet manufacturer, introduces some of the situation of the color steel plate room. The construction of the color steel plate factory is mainly divided into five parts. 1. Pre-embedded parts. (Strengthen the structure of the factory building with the wholesale color corrugated steel sheet) 2. Bamboo, generally H-shaped steel, or C-shaped steel (usually connected with two C-shaped steel with angle steel) 3. The beam, generally use C-shaped steel and H-shaped steel (the height of the intermediate product is determined according to the span of the beam) 4. Bods, usually C-shaped steel, also used in channel steel. 5. Tile, divided into two, the first is a single tile (color steel tile). The second type is the composite board (the foam in the middle of the two-layer tile plays the role of warm winter and cool summer, and also has the effect of sound insulation). Color steel plate also has the following characteristics: light weight, high strength, large span, high fire resistance, strong corrosion resistance, short construction period and low investment cost. At the same time, it has the characteristics of convenient transportation, no pollution, and good environmental protection.
add to favorites	dvantages of galvanizing hot-dip galvanized sheets	Cars - Economy cars
The advantage of hot dip galvanized steel coil is that it has a long anti-corrosion life and has always been a popular environmentally-friendly anti-corrosion treatment. What are the advantages of hot-dip galvanized sheet? The following is the principle of hot-dip galvanizing sheet. The following small series introduces you to the following points, I hope to help you. Hot-dip galvanized sheet, also called hot dip galvanizing, is a method in which a steel member is obtained by immersing in molten zinc to obtain a metal coating. With the rapid development of high-voltage transmission, transportation and communication, the requirements for steel protection are getting higher and higher, and the demand for hot-dip galvanized sheets is also growing. Usually, the thickness of the galvanized layer is 5 to 15 μm, and the galvanized layer is usually 35 μm or more, or even as high as 200 μm. The hot-dip galvanized sheet has good coverage, and the coating is dense and free of organic inclusions. It is well known that the mechanism of zinc against atmospheric corrosion includes mechanical protection and electrochemical protection. Under atmospheric corrosion conditions, ZnO, Zn(OH)2 and alkaline zinc carbonate protective films on the surface of the zinc layer slow down the corrosion of zinc to a certain extent. This protective film (also known as white rust) is damaged. A new film layer will be formed. When the zinc layer is severely damaged and endangers the iron matrix, zinc electrochemically protects the substrate. The standard potential is zinc-0.76V and the standard potential is iron-0.44V. When zinc and iron form micropores, zinc dissolves as an anode and iron acts as a cathode. Obviously, hot-dip galvanized sheets have better atmospheric corrosion resistance to bismuth metal iron than electrogalvanized steel sheets.
add to favorites	Precautions for the purchase of galvalume steel coils	Cars
Surface treatment of galvalume steel coil The surface treatment of the high quality galvalume steel coating steel coil can reduce the black rust on the surface of the coil during transportation and storage. The rust preventive oil applied is generally not used as rolling oil and stamping lubricant for subsequent processing. However, if the buyer does not take the initiative, the supplier will rarely take the initiative to deal with the surface of the galvalume steel coil. In this case, the surface of the galvalume steel coil is more likely to produce black rust and black spots, and the user should be cautious when selecting this treatment. Inspection and testing of galvalume steel coils The surface quality of the galvalume steel coil was visually inspected. The size and shape of the galvalume steel coil shall be measured with a suitable gage. The thickness measurement portion is any point not less than 20 mm from the side. Application of galvalume steel coil Buildings: roofs, walls, garages, soundproof walls, pipes and modular houses, etc. Automobile: exhaust pipe, wiper attachment, fuel tank, truck box, etc. Home appliances: refrigerator backboard, gas stove, air conditioner, electronic microwave oven, LCD frame, CRT tape, LED backlight, electrical cabinet, etc. Agricultural: pig houses, chicken houses, granaries, greenhouse pipes, etc.
add to favorites	Precautions for the construction of galvalumed sheet	Cars
In addition to the need to pay attention to the stacking and transportation of high quality Galvalumed steel sheet, more attention should be paid during construction. Chinahengze introduces to you for the points that should be paid attention to during construction. For your reference: 1. During the construction, the slope of the support at both ends of the galvalumed steel plate should be flat and uniform. The cast-in-place ring beam under the slab should be leveled with cement mortar, the cast-in-place concrete beam should be graded with the slate concrete, and the upper surface should be leveled with cement mortar. 2. Aerated concrete galvalumed steel plate adopts hoisting method of hoisting and block installation. 3. Metal sheets between the joints, such as steel sheets, should be rust-proofed, generally galvalumed; nail penetration depth, the top of the metal sheet is not higher than the bottom of the groove. 4. Before grouting, the steel bars are placed in the slats. The steel bars are treated by rust removal, so as to avoid straightening. In order to avoid the steel bars from being exposed to the grooves, a small hook can be bent at both ends to be nailed into the slats. 5. After the low cost Galvalume Corrugated Roofing Sheet is grouted, it is forbidden to enter the person and increase any load within two days under normal temperature conditions. 6. The stacking members on the galvalumed steel sheet shall be placed at the support position. If they are stacked on other parts of the galvalumed steel sheet, temporary support shall be added under the galvalumed steel sheet. 7. When lining the linoleum on the aerated concrete galvalumed steel sheet, the base layer should be required to be dry. When the humidity is too high, it should not be laid. Temporary rain protection measures should be taken during rainy season construction. 8. Due to the construction needs, when walking on the roof and strolling, it should be supported under the galvalumed steel plate, or the "horse road" can be laid on the roof. 9. During the construction, the plate shall not be sawed arbitrarily. It is not allowed to use the saw with short saws. The longitudinal saw and the hole shall be strictly in accordance with the relevant regulations.
add to favorites	Repair of glass fiber geogrid	Cars
In the asphalt overburden layer, the high quality biaxial fiberglass geogrid can disperse the compressive stress and tensile stress of the pavement, forming a buffer zone between the two stressed regions, where the stress gradually changes instead of the mutation, reducing the stress mutation on the asphalt. Destruction of the overcoat. At the same time, the low elongation of the fiberglass geogrid reduces the deflection of the road surface, ensuring that the road surface will not undergo transient deformation. The fiberglass grille is an excellent geosynthetic material used for road surface reinforcement, old road reinforcement, reinforcement of roadbed and soft soil foundation. The semi-rigid product made of biaxial fiberglass geogrid high-strength alkali-free glass fiber is made into a mesh substrate through international advanced warp knitting process and surface-treated. It has high tensile strength and low elongation in both directions of warp and weft, and has excellent properties such as high temperature resistance, low cold resistance, anti-aging and corrosion resistance, and is widely used in asphalt pavement.
add to favorites	Roof sheet characteristics and scope of application	Cars
Regardless of whether we use and buy PPGI corrugated roofing sheet or any other product, we must first understand its features and performance in order to use it scientifically and reasonably. The following is mainly about the characteristics and scope of the roof sheet: The roof slabs are mainly used for modern industrial buildings, chemical fertilizer plants, sewage treatment plants, electroplating plants, power plants, aquaculture plants, markets, warehouses and other large industrial building roofs and wall new construction and plant renovation projects. 1. The roof sheet is excellent in weather resistance and corrosion resistance. It has been proved by practice that the products have good weather resistance under various climatic conditions and exhibit good corrosion resistance in acid, alkali and salt chemical corrosive environments. 2. Outstanding waterproof performance. Use a waterproof layer in a 15-90 degree sloping roof construction. 3. Wind and earthquake resistance. The 90 degree building façade is safe and reliable and can withstand 12 strong winds. 4. The fireproof performance of the roof sheet is good. The material has a combustion resistance rating of B1 and is a flame retardant material. 5. Sound insulation, thermal insulation performance is good. The porous foam core layer has good sound absorbing and heat insulating properties. 6. Large area and light weight. Lightweight materials to reduce building loads. 7. The roof sheet is rich in color, lasting and stable. Fluorocarbon paint coating, rich in color, smooth surface, acid and alkali resistance, mildew, rain as new. 8. High toughness and high strength. Better toughness and strength than similar products. 9. The roof sheet is easy to construct. The product can be directly nailed, drilled, sawed, and planed to easily handle special roof shapes such as façades and arc windows.
add to favorites	How to judge the quality of steel coil	Cars - Economy cars
Due to the increasing use, a variety of methods for identifying the quality of galvanized steel coils have been created. galvanized steel coils have many advantages in use, so there are so many people who purchase hot-dip galvanized steel coils. China galvanized steel coil supplier come to teach you how to compare quality galvanized steel coils. First is a more traditional method of identification, that is to look at the surface. Generally good galvanized steel coil surface is very smooth without any impurities, there is the identification of galvanized steel strip material, usually the quality of the regular manufacturer's product is relatively hard, the inferior product will be relatively soft. An important step in the processing of galvanized steel coils is galvanizing. We can also check the quality of this product by looking at the amount of galvanizing. This inspection method is very simple, just look at how much galvanized steel coils are galvanized. There is a certain standard for the galvanizing of good quality products, and the galvanized layer is relatively uniform, because a regular Chinese galvanized steel coil manufacturer has a good hot-dip galvanized steel coil equipment, and there will be no galvanizing. Non-standard and uneven galvanizing.
add to favorites	Color Steel Sheet Related Expertise	Cars - Economy cars
Cut a section of the warped steel coil onto the platform. If the shortest vertical strip is regarded as a straight line, the longest vertical strip is regarded as a sine wave, and the warp waveform is used to represent the shape of the PPGI corrugated roofing sheet for sale, which is called the warpness, where Rv represents the amplitude (wave height) and Lv represents the wavelength (wave distance). In order to obtain a high quality steel sheet, it is necessary to adjust the roll gap of the roll at any time to suit the convexity of the incoming sheet and to compensate for the influence of various factors on the roll gap. For steel coils of different widths, thicknesses, and alloys, there is only one optimum crown, and the rolls can produce the desired target shape. Therefore, the essence of the shape control is the control of the load roll gap, and the thickness control only needs to control the opening precision at the midpoint of the roll gap, and the shape control must control the shape of the full roll gap within the width span of the steel sheet. To improve and improve the control level of the shape of the PPGI corrugated roofing sheet, it is necessary to start from two aspects. First, from the aspect of equipment configuration, such as the use of advanced shape control means to increase the rigidity of the rolling mill; the second is from the process configuration, including the original crown of the roll. Given, deformation and distribution of passes. Advanced hot rolling mills and cold tandem mills and control processes are at the forefront of the world in shape control. After the cold rolling, the hot-plating (aluminum) zinc unit is equipped with a leveling machine and a pull-up machine, so that the flatness of the galvanized steel sheet after annealing is further improved.
add to favorites	Where is the color coated volume	Cars
Among the color-coated products, the galvalume steel plate and high quality PPGI corrugated roofing sheet produced by Hengze have always been highly praised by the market. Hengze color coating roll has also become synonymous with high-end products. So, in Shandong, is there a color coated wholesale? The answer is yes. Shandong Hengze New Material Co., Ltd., the largest supplier of modern steel roofing materials in North China, specializes in authentic China high quality prepainted color galvanized coil and has the following three advantages: 1. The color coating roll has excellent molding performance and can meet the requirements of roll stamping, bending and other forms of processing. 2, color coated rolls have good heat resistance. Ordinary hot-dip galvanizing products usually use a temperature not exceeding 230 ° C and will change color at 250 ° C. The aluminum-zinc plate can be used for a long time at 315 ° C. 3. The color coated roll has high reflectivity. The ability to reflect heat and light is twice that of hot-dip galvanized steel, with a reflectance greater than 0.75, which is better than the EPA Energy Star's 0.65, making it an ideal building material for energy savings. China's wholesale color coating rolls, the preferred Shandong Hengze!
add to favorites	Geogrid requirements for special construction	Cottages
In special construction, the high quality steel plastic geogrid should be laid as required, as follows: First, the geogrid should level the bottom of the slope, remove the turf of the roots, fill the pits, and the local height difference of the flatness of the bottom of the slope is not more than 10CM. Stack sand bags at the end of the slope should be stable, the gap between the bags should be filled with soil, and the sand bag sand loading rate is 70%-80%. The stacking sand bag can play the role of retaining the template and strengthen the slope. The geogrid is vertical on the slope end, and the template is composed of rectangular slats and T-shaped steel strips. The two do not need to be connected, but for easy disassembly, wedges can be inserted between the long slats and the L-shaped steel plates. When the steel fiber is inserted into the gap between the slat and the steel plate, the steel plate is taken out. Secondly, the steel plastic geogrid is folded back and fixed: the lateral length of the slope at the end of the slope is 1.5-2.0m. When the height of the fill reaches 2-3, the grid is folded back to the fill, and then Continue to fill the soil and bury the folded end in the soil. In general, when the slope of the slope reinforced with the glass fiber grid is less than 45 degrees, it is not necessary to return the grid to ensure the stability of the slope.
add to favorites	Construction advice given by geotextile suppliers	Cars
The textured hdpe geomembrane supplier remind the majority of constructors: the geomembrane and composite geomembrane should pay attention to the stability of various parameters before construction, including the following: 1. The geomembrane coil should be protected from damage before installation. The hot sale hdpe geomembrane should be piled up in a place where there is no water accumulation, the height of the pile should not exceed four rolls, and the identification piece of the roll can be seen. Geomembrane rolls must be covered with opaque materials to prevent UV aging. During the storage process, the integrity of the label and the integrity of the data should be maintained. 2. The stitched hot sale hdpe geomembrane pond liner joints most include a line and a chain lock chain stitching method. The thread used for stitching shall be a resin material with a minimum tension of more than 60 N and resistance to chemical and UV rays equivalent to or exceeding that of the geomembrane. 3. The worn geomembrane must be repaired by laying and thermally joining the geomembrane pieces. The geomembrane piece is at least 200 mm longer than the edge of the defect in all directions. The thermal connection must be strictly controlled to ensure that the geomembrane patch and the geomembrane are tightly bonded and that the geomembrane is not damaged. 4. At the bottom of the landfill, if the length of the crack exceeds 10% of the width of the coil, the damaged part of the composite geomembrane must be cut off, and then the two parts of the geomembrane are joined.
add to favorites	Method for reducing pollution of cold rolled steel coil	Cars - Economy cars
It is well known that carbonaceous compounds contaminate the surface of cold rolled steel coil, which adversely affect the phosphating properties of metal products, the adhesion of coatings, and the corrosion resistance after painting. When the surface residual carbon exceeds Smg/m2, the above properties are remarkably deteriorated. Therefore, users of cold-rolled sheets, especially automobile factories, have imposed strict requirements on the surface cleanliness of steel sheets. When the cold rolled steel coil is annealed in a hood furnace, precipitation of carbonaceous deposits may occur. According to the process kinetics, when the carbon evolution reaction proceeds quickly, it is uncontrollable. The formation of a carbon-containing compound can be suppressed by reducing the amount of reactants while ensuring a low reaction rate, and the reactant is a potential carrier for carbon. When the content of carbonaceous reactants in the muffle furnace space is reduced, Δc is reduced. This can be achieved by starting to heat the gaseous carbonaceous reactant for 30 h. When evaporating to form a compound, the parameter Ar can be increased by slowing down the heating rate. This can be ensured by intermediate insulation during the heating deposition process. In addition to methane, gases (ethylene, propylene) and aromatic carbon oxides which form unsaturated bonds are also formed during annealing. These gases form a resinous polymer when condensed and condensed, and volatile acids are deposited on the edge of the coil during annealing, which also produces "smoke black" deposits. When the residual oil-containing composition on the steel coil after cold rolling is reduced, the amount and concentration of the reactants can be reduced.
add to favorites	Cleaning galvanized steel coil benefits	Cars
Consumers should clearly know the proper use of the high quality GI steel coil with spangles when they use them, because only knowing what is the benefit of cleaning galvanized steel coils will not cause any problems when they are used. Let’s talk about them in detail. How to operate correctly, in the process of cleaning the GI steel coil, in order to ensure the stability of the rolling process in the future, the emulsion is used, so that the rolling force can be reduced and the surface quality of the galvanized steel coil can be ensured. When using the emulsion, not only the emulsion but also an additive is added to the emulsion to improve the performance, so that the lubricant forms a network-like adsorption film on the metal surface to ensure the GI steel coil. The surface quality allows it to have toughness and compressive strength in future use. Since the adsorption of polar molecules and metal surfaces in the emulsion is large, the additive improves the rolling performance of the emulsion on the one hand and ensures the stability of the rolling. On the other hand, the polar molecules and the emulsion in the additive Impurities such as oily components, fine iron powder, and leakage oil in the rolling mill hydraulic system are stably present in the uneven surface of the GI steel coil by the strong polarity (adsorption) of polar molecules.
add to favorites	Common Quality Issues and Causes of Coils	Cars
1. Anti-stick Features: The GI steel coil with spangles in stock is slightly peeled off during the unwinding, and the primer is similar to the granular granules of the millet, and the surface is uneven after the topcoat is applied. Cause: a. Cooling is not enough before winding. b. The steel coil is insufficiently baked. c. Part of the load is too large. 2. Crush injury Features: The lap of the coil after coating. Cause: a. The raw material roll is crushed. b. The steel coil is crushed by various rollers before coating. c. The steel coil is crushed after the coating and the coating.
add to favorites	How to Distinguish Geomembrane	Cars
In today's market, the price of hot sale hdpe geomembrane pond liner is uneven, such as 500g/m2, some offer is 8.3-9.0 yuan/m2, and some offer 7.0-7.5. The price difference is big, in fact, it is not knowledgeable. People don't know the truth, let me introduce the reason here. At present, 80% of the hdpe geomembrane on the market is laminating. Therefore, in many years, many geotechnical engineering uses hdpe geomembrane to reduce the anti-seepage effect in 1-2 years. Many customers have begun to doubt the role of hdpe geomembrane. In fact, the true hdpe geomembrane has a life expectancy of at least 10 years. It is hoped that customers will know more about the characteristics of their products and the process of production. Let me first say 500g/m2, the hot sale hdpe geomembrane pond liner with the price of 8.3-9.0 yuan/m2. In fact, the hdpe geomembrane of this price is the authentic hdpe geomembrane. His composition: A produces good geotextile, B produces well. PE film (generally blown film machine, this equipment is at least 1.8 million or more), C geotextile and PE film composite, composite require special composite glue. Such a product is a true hdpe geomembrane. A simple method of identification: the authentic hdpe geomembrane can be used to tear the geotextile and PE film by hand. The surface of the geotextile looks clean. It is invisible to see the presence of plastic particles. The fibers of the geotextile are clearly visible. Generally, there are three processes in the construction. First, the geotextile is stitched, the PE film is welded, and finally the suture is completed. Geotextiles, the market price is generally 8.3-9.0 yuan / m2.
add to favorites	Galvanized Steel Sandwich Panel	Cars - Economy cars
Due to the electrochemical reaction, lead and copper sandwich panels will accelerate the corrosion of galvanized steel sheets. Lead cannot be used as a sandwich panel with high quality Galvalumed steel panel. Copper cannot be used as a sandwich panel with galvanized and galvanized sheets. The recommended materials for sandwich panels are aluminum-zinc-plated substrates, aluminized zinc-plated plates, and aluminum plates. Since the Galvalumed steel panel has a short life, it should not be used as a sandwich panel with an aluminized zinc color plate. Roofing sheets produced by carbon-free rubber and aluminum plants - penetrating sandwich panels, such as exhaust ducts, can be used as sandwich panels with galvanized steel sheets.
add to favorites	Geotextile Anti-seepage Effect	Cars - Economy cars
The anti-seepage principle of PP woven prevent grass growth geotextile mainly resists the water leakage passage of the earth dam by the impermeability of the film, and withstands and adapts to the deformation of the dam body with its large tensile strength and elongation. If the non-woven fabric is combined with the film, not only The tensile strength and puncture resistance of the geotextile can be increased, the friction coefficient of the contact surface is increased, the stability of the protective layer is facilitated, and the defense effect against bacteria is also strong. The PP woven prevent grass growth geotextile enlarger utilization rate can be increased according to the anti-seepage principle. The anti-seepage geotextile (composite geomembrane) uses a plastic film as the anti-seepage substrate, a geomembrane and a non-woven composite geotextile material, and its anti-seepage performance mainly depends on the anti-seepage performance of the plastic film. At present, the plastic film for anti-seepage applications at home and abroad mainly includes polyvinyl chloride (PVC) and polyethylene (PE). They are a kind of polymer chemical flexible material with small specific gravity, strong elongation and high adaptability to deformation. Corrosion resistance, low-temperature resistance, good frost resistance, the main mechanism is the watertight passage of the plastic film to block the earth dam leakage passage, withstand the water pressure with its large tensile strength and elongation, and adapt to the dam body to change the bentonite waterproof blanket. The shape and non-woven fabric is also a kind of high-molecular short-fiber chemical material. It has high tensile strength and elongation by needle punching or hot-adhesive forming. When combined with plastic film, it not only increases the plastic film. Tensile strength and puncture resistance, and because of the rough surface of the non-woven fabric, the friction coefficient of the contact surface is increased, which is beneficial to the stability of the composite geomembrane and the protective layer. At the same time, they have better corrosion resistance to bacteria and chemicals. Sex, not afraid of acid, alkali, salt erosion.
add to favorites	Application of Hot-dip Galvanized Sheet	Cars - Economy cars
The hot dip galvanized steel coil supplier to introduce the application of hot-dip galvanized sheets in automobiles. Automotive surface treatment sheets must not only have good corrosion resistance, but also must meet various performance requirements such as press formability, weldability, passivation treatment, and paintability. In North America, the thicker plated galvanized steel sheet EG plate is mainly used; in addition to EG steel plate in Japan, more automotive plants use alloyed hot-dip galvanized steel sheet GA plate; European automobile manufacturers use EG steel plate and GA steel plate in addition to EG steel plate and GA steel plate. In addition, the main use of non-alloyed hot-dip galvanized steel sheet. Recently, automobile manufacturers using high quality GI steel coil with spangles as interior parts or exterior parts have been increasing, and the demand for GI steel sheets is expanding. In the past, GI steel sheets were mainly used for building materials. Compared with steel banknotes, GI steel sheets are easy to manufacture thick-coated steel sheets, and the production cost is also low. This is the advantage of GI steel sheets. Similarly, hot-dip galvanized strips are used more and more in the home appliance manufacturing industry. In the past, the electric hinged zinc strip has monopolized the market of the home appliance manufacturing industry, but in recent years, hot-dip galvanized strips have occupied a certain share.
add to favorites	Characteristics Of Steel Coil	Cars
The zinc layer on the surface of China aluminum zinc steel coil prevents the corrosive medium from contacting the steel substrate, thereby preventing the steel substrate from being corroded. The corrosion resistance of the zinc layer is that it has a very thin oxide film to block air. Even if part of the zinc layer falls off, anodic protection can be performed by forming a local micro battery on the steel substrate. Therefore, China aluminum zinc steel coil can be used for a long time in a dry environment. This is because when the zinc substrate is exposed to a single portion of the steel substrate since the electrode potential of zinc is lower than the electrode potential of iron, a zinc-iron micro battery is formed. At this point, zinc loses electrons and is oxidized, while iron does not corrode.
add to favorites	Cold Rolled Coils And Cold Rolled Strips	Cars
Now the steel industry is developing better and better. The former iron products are easy to rust and easy to corrode and not durable. The high quality rolled hard roll steel coil is also slowly replacing the original iron products. The cold rolled coils have good surface quality, high smoothness and are not easily oxidized. Business welcome. Moreover, many consumers are entangled in the purchase process. What is the difference between cold rolled coil and cold rolled strip? Let's talk about their differences today: Cold rolled coils are often called cold rolled coils. Due to the cold work hardening caused by continuous cold deformation, the strength and hardness of the rolled hard rolls are increased, and the toughness index is lowered. Therefore, the punching performance is deteriorated only for the parts that are simply deformed. The cold-rolled steel sheet is processed from a hot-rolled sheet at a normal temperature. Although the steel sheet is heated during the processing because of rolling, it is called cold rolling. Since the cold rolling of the hot rolling through the continuous cold deformation is relatively poor in mechanical properties, the hardness is too high. It must be annealed to restore its mechanical properties. The unrolled hard rolled coil is usually used for products that do not require bending. The cold-rolled coil is produced by rolling hot-rolled coils at room temperature below the recrystallization temperature, including plates and coils. Many domestic steel mills such as Baosteel, Wuhan Iron and Steel, and Anshan Iron and Steel can produce. The steel plate, also called the steel plate, is also called the steel plate, which is called the steel plate or the flat plate.