Using the method of surface oiling:

Applying oil on the galvanized grating can effectively prevent direct contact between air and zinc. Stainless steel grating itself has the characteristics of ventilation, light transmission, anti-slip, strong bearing capacity, beautiful appearance, easy cleaning and installation. For example, the Stair treads is made of steel grating and is also called steel gratingStair treads. Condensation and moisture, so it has a strong anti-rust effect. Before painting, the oil on the surface of the steel plate must be wiped off.

Using the phosphate treatment method:

If the galvanized grating is used for painting purposes, phosphate coating treatment can be used. Stainless steel grating is arranged in a certain spacing between the load flat steel and the cross bar according to the corresponding pitch, and the original plate is welded on a high-voltage resistance welding machine, and then processed through some processes to finally produce products that meet customer requirements, such as cutting, notching, and opening holes. Phosphate can firmly adhere to the galvanizing, forming a loose and porous situation, and also providing a good foothold to strengthen the adhesion. Users only need to simply degrease before painting.

Chromic acid treatment:

Putting the galvanized grating into the chromic acid solution will form a low-activity film on the surface. The price of aluminum alloy steel grating consists of several parts - raw material price + labor cost + logistics cost. And the raw material price can be divided into surface galvanizing price + black sheet raw material price. In theory, the weight of the aluminum alloy steel grating is calculated based on its height, thickness, mesh size, etc., and the theoretical weight is lighter than the actual weight. Even if the chromic acid film is damaged, the chromate near the injury will dissolve again due to the encounter of water, and a new film will be formed again. Because of its self-recovery and protection function, it can effectively prevent the occurrence of white rust.

In order for the galvanized grating to function or extend its service life, the surface of the plate needs to be treated accordingly to extend the service life of the steel plate and thereby reduce certain losses.

The height of the foundation pit guardrail should not be less than 1.2 meters.

The foundation pit guardrail should be equipped with a dense mesh safety net and a toe board. The safety net should be set up from top to bottom in a closed manner, and the height of the toe board should not be less than 18 cm. The lower edge of the toe board should not be more than 10 mm from the ground.

The foundation pit guardrail should be composed of horizontal bars and vertical posts. There should be 2-3 horizontal bars, the height of the lower bar from the ground is 0.3 meters to 0.6 meters, and the height of the upper bar from the ground is 1.2 meters to 1.5 meters. The distance between the vertical posts should not be greater than 2 meters, and the distance between the vertical posts and the slope edge should be greater than 0.5 meters.

The foundation pit guardrail should be installed firmly, and the materials should have sufficient strength.

Special ladders for construction personnel to go up and down should be set up in the foundation pit, and handrails should be set up on the ladders. The width of the ladders should not be less than 1 meter, and the erection of the ladders should meet the standard requirements.

The uses of the foundation pit guardrail: The requirement of civilized and safe construction makes the entire construction site look neat; it prevents machinery from getting too close to the foundation pit, causing the foundation pit to collapse; it prevents debris from falling into the foundation pit, posing a hazard to the construction personnel in the foundation pit, and preventing on-site construction personnel from accidentally falling into the foundation pit and getting injured.

Using the method of surface oiling

Applying oil on the galvanized grating can effectively prevent direct contact between air and zinc. Stainless steel grating itself has the characteristics of ventilation, light transmission, anti-skid, strong bearing capacity, beautiful appearance, easy cleaning and installation, etc. For example, the step plate is processed from steel grating and is also called steel grating step plate. Condensation and water soaking, so it has a strong anti-rust effect. Before painting, the oil on the surface of the steel plate must be wiped off.

2. Using the phosphate treatment method

If the galvanized grating is used for painting purposes, phosphate film treatment can be used. Stainless steel grating is arranged by the load flat steel and cross bars according to the corresponding spacing in longitude and latitude, and the original plate is welded on a high-voltage resistance welding machine, and through some processes for further processing, the final product that meets customer requirements is produced, such as cutting, notching, and opening holes. Phosphate can firmly adhere to galvanization, forming a loose and porous situation, and also providing a good foothold to strengthen adhesion. Users only need simple degreasing to be able to paint.

3. Chromic acid treatment

Putting the galvanized grating into the chromic acid solution, a low-activity film will be formed on the surface. The price of aluminum alloy steel grating consists of several parts - raw material price + labor cost + logistics cost. And the raw material price can be divided into surface galvanizing price + black sheet raw material price. Theoretically, the weight of the aluminum alloy steel grating is calculated based on its height, thickness, mesh, etc., and the theoretical weight is lighter than the actual weight. Even if the chromic acid film is damaged, the chromate near the injury will dissolve when encountering water and will gather at the wound again to form a new film. Because of its self-recovery and protection effect, it can effectively prevent the occurrence of white rust.

If the galvanized grating is to play its role or extend its service life, the surface of the plate needs to be treated accordingly to extend the service life of the steel plate and thereby reduce certain losses.

In the basic bridge construction guardrail net, in terms of the construction height from the ground and the overall construction strength, it also has quite stable utilization value and has become a wire structure material that is popular and has good stability at present. On the whole, the bridge guardrail net has the advantages of isolation, blocking, firmness, and convenient installation of the highway guardrail net. And in terms of welding assembly and material selection, it also has a certain stability. This will be a full use of the bridge guardrail net to achieve greater performance in material isolation and stable use. Among them, the height of the bridge guardrail net from the ground is regarded as a concerned aspect and is also introduced to you here in focus.

Height requirements for bridge construction guardrail nets

For bridge guardrail net construction, the key aspect is that based on the height of the bridge from the foundation, including the reinforcement of the overall guardrail net base, it should have more stable utilization value. The overall height standard: The height measurement value is between 50 and 80 cm, and the wall depth should be between 12 and 20 cm, and it is constructed with bricklaying and cement.

Different height values of bridge guardrail nets

Height standard of expressway bridge guardrail nets: Between 55 and 77 cm, and ensure that the column is inserted into the wall at a depth of 12 to 20 cm;

Height standard for general small freight passenger vehicles; Within the range of 40 to 60 cm, and at the same time, it should not affect the normal driving of other vehicles.

The intermediate isolation guardrail net for ordinary road vehicles; Controlled within the range of 30 to 50 cm and should not be set too high.

For highly copper-cable accessible roads, faster and more stable utilization will be an important basis for the construction of bridge guardrail nets in previous years and the overall height of the guardrail nets.

The verification of the highway anti-throwing net can be carried out from multiple aspects to ensure that its quality and performance meet the requirements. The following are some suggested verification methods:

Appearance inspection:
First of all, carefully inspect the appearance of the highway anti-throwing net. Pay attention to observe whether there are obvious damages, fractures, rusts or deformations and other phenomena. The appearance should be clean and smooth, without obvious flaws.

Dimension measurement:
Measure the dimensions of the highway anti-throwing net, including the mesh size, wire diameter and net sheet size, etc. The measurement results should be in line with the specification requirements and be consistent.

Strength test:
Use professional equipment to conduct strength tests to determine the bearing capacity of the highway anti-throwing net. Appropriate tension or pressure can be applied during the test to evaluate its stability and durability under normal use conditions.

Corrosion resistance inspection:
If the highway anti-throwing net is made of galvanized steel wire or stainless steel material, corrosion resistance inspection can be conducted. Common methods include salt spray test, humidity test, etc., to test its performance in a humid environment or corrosive medium.

Safety assessment:
Assess the safety of the highway anti-throwing net, considering its impact on driving safety and traffic smoothness. This assessment can be based on professional standards or specifications, comprehensively considering factors such as mesh size, wire diameter, material, etc.

Supplementary note: The above are some common verification methods for the highway anti-throwing net. The specific verification steps and standards can be adjusted and determined according to actual needs. When conducting the verification, it is recommended to use professional test equipment and instruments, and consult experts or technicians in related fields to ensure the accuracy and reliability of the verification results.

The installation of temporary guardrail nets is an important measure to ensure road traffic safety and construction project safety. Therefore, the following aspects should be noted during the installation:

Site selection: The installation of temporary guardrail nets should select the appropriate location based on actual needs and ensure that the installation location meets safety requirements.

Ground preparation: Before installation, the ground should be prepared, cleaned, and obstacles removed.

Installation norms: The installation of temporary guardrail nets should be operated in accordance with norms to ensure that the height, length, density, etc. of the guardrail nets meet the standards. At the same time, attention should be paid to stability to avoid safety accidents caused by looseness or shaking of the temporary guardrail nets.

Identification marks: During the installation of temporary guardrail nets, for the safety of vehicles and pedestrians, identification marks should be added to the temporary guardrail nets, marking warning words, safety signs, and prohibition signs, etc., to remind pedestrians and vehicles to pay attention to safety matters.

Maintenance and management: After the installation is completed, regular maintenance and management are required to ensure that the temporary guardrail nets do not suffer from damage, deformation, looseness, and shedding due to various reasons.

When installing temporary guardrail nets, it should be carried out in accordance with operation norms to ensure that they can provide safety guarantees for pedestrians and vehicles and ensure the stability and firmness of the equipment.

An isolation fence is a facility that can divide space and it is widely used in various occasions. It is mainly set up to prevent cross-contamination between different areas or to protect the safety of personnel. For example, isolation fences are often used in industrial workshops to separate different operation areas, prevent certain harmful gases or foreign substances from poisoning workers, and protect the environmental safety of the factory. In hospitals, isolation fences are also a very important facility. It can well control the spread of infections and viruses and reduce the infection risk of medical staff and patients.

The commonly used materials for isolation fences include: stainless steel, iron, steel pipes, aluminum alloys, acrylic plates, and glass. They come in various styles and can be customized as needed. Isolation fences also have some special configurations and functions, such as automatic induction doors, sound and light alarms, ultraviolet sterilization, etc., to adapt to different needs.

In industrial workshops, as a safety isolation equipment, workshop isolation barriers define a specific area for the workshop to facilitate safe operation. For different operation areas, workshop isolation barriers can be customized with different materials, specifications and brands according to different environments and operation needs. Workshop isolation barriers can effectively control the working status of the workshop and increase the ability of safety prevention.

The breeding fence net, namely the wire mesh fence, Dutch net, enclosure fence net, breeding guardrail net, etc., is mainly welded with high-quality iron wires. The PVC or PE, PP powder is vulcanized and coated on its surface, which has strong adhesion, good anti-corrosion performance and bright color.

The materials of the breeding fence net: PVC wires, stainless steel wires, high-quality low-carbon steel wires, iron wires, aluminum alloy wires, etc.

The specifications of the breeding fence net: The wire diameter is 1.0mm - 3.0mm after plastic coating. The net height is generally 1.2 meters, 1.5 meters, 1.8 meters and 2.0 meters.

The price of the breeding fence net is generally determined by the thickness of the wire, the height of the guardrail net and the size of the aperture. The price ranges from tens of yuan to three hundred yuan. The following introduces the most commonly used chicken breeding guardrail net. The height is 1.8 meters, the aperture is 50mm * 50mm, and the wire diameter is 2.8MM. The price of this kind is 160 yuan per roll.

The peach-shaped column guardrail net belongs to the anti-theft type of guardrail net. It is not easy to disassemble after installation, but it can be said to be the best guardrail to install among the guardrail net products. First, fix the first column and then hang the mesh onto the column. Hang the second column immediately after. After connection, fix the second column, and then hang the second mesh and the third column. After tightening the mesh, fix the third column. And so on, install one set after another. This installation is both firm and does not damage the mesh.

Installation of the guardrail net with cement column and wall: There are two installation methods, which should be determined according to specific conditions and requirements.

Both ends of the guardrail enter the wall: To ensure the firmness of the zinc steel guardrail net, the spacing between columns is generally not more than 2.9 meters (both ends of the guardrail enter the wall by 5 cm each, and the actual length of the crossbar should be 3 meters; the length of the steel pipe is generally 6 meters). If it exceeds 2.9 meters, it is recommended to add a large steel column in the middle. When doing the foundation, installation holes should be reserved according to the height and design drawings for easy installation. After the guardrail is installed, the wall can be painted.

Both ends of the guardrail do not enter the wall: If expansion screws and U-shaped clips are used for connection, the net spacing between the two columns is 3 meters or 6.05 meters (add a steel column in the middle). After the guardrail net is installed, the wall can be painted.

Installation of the wall without cement columns: The steel columns need to be installed first, and the net spacing between the two columns is 3 meters.

There are two installation methods for the steel columns: 1. During the civil construction of the wall foundation, at the installation position of the column, column installation foundations of 200mm * 200mm * 150mm are poured at equal distances with concrete, and it is ensured that the horizontal heights of each foundation are the same. Use mechanical expansion bolts to fix the column flange on the installation foundation for linear and uniform distribution. The column spacing must be consistent with the designed size to ensure that the pre-assembled guardrail net can be connected to it. After the guardrail is installed, the wall can be painted, and the flange and expansion bolts are buried in the painted layer to achieve a beautiful effect.

During the civil construction of the wall foundation, column installation holes of 150mm * 150mm are reserved at equal distances, with a depth greater than 250mm. During installation, insert the column directly into the reserved installation hole of the wall foundation. The standard embedded depth is 200mm. Use a fixing plug for fixation and fill the reserved hole with cement mortar. When the curing period is over, the guardrail installation can be completed. During this installation process, it is necessary to pay attention to the control of the horizontal, vertical and height of the column. It is recommended to draw a horizontal line on the wall foundation before installation to control the horizontal level of the column, draw a height reference line on the side of the wall foundation to control the installation height of the column, and use a spirit level to calibrate the verticality of the column.

Unreasonable shape of the guardrail

Sometimes, the spacing of the vertical rods of the zinc steel guardrail is unreasonable, or there is no design to prevent climbing. Therefore, the design needs to be customized by the unit, and there must be a special person to supervise. It can be used only after confirmation by the design unit. It cannot just look good but fail to play a protective role.

Insufficient height of the guardrail. Sometimes, in order to save costs, it may not meet national requirements. Therefore, attention must be paid to measurement.

Improper installation position. When installing zinc steel guardrails, sturdiness and durability must be the top priority. Make detailed designs before installation, and the installation position should also be well designed.

Unstable installation. The method of installing embedded parts can be adopted. The weld seams should be polished and treated for rust prevention.

Tolerance Including whether the tolerance of the diagonal of the flat steel is controlled within a very good range, and whether the tolerance of the flat steel complies with national standards and national norms.

The quality of the flat steel material The flat steel is the most important part of the steel grating and bears the maximum load in the entire structure. Some manufacturers, in order to reduce production costs and earn more money, will use flat steel made from recycled steel for secondary processing.

The correction and welding of the flat steel After purchasing the flat steel, it may not be completely parallel. Additionally, during transportation, due to hoisting, the flat steel may be slightly bent. Don't underestimate this slight bend. If the steel grating is slightly bent, it will lead to failure to weld or the welded steel grating will be deformed. Therefore, correction is very important. Welding is a very important link. The quality of welding will directly affect the bearing capacity and lifespan of the steel grating. If the welding is not good, it may crack after a few days of use, and such a steel grating cannot be used.

The hot-dip galvanizing treatment of the steel grating Hot-dip galvanizing is very important for the steel grating. This is the appearance of the steel grating. The first criterion for customers to judge the steel grating is the hot-dip galvanizing on the surface. Hot-dip galvanizing is not only beautiful, but more importantly, its rust-proof ability. Good quality hot-dip galvanizing naturally leads to a long lifespan.

Packaging and shipping The last point is the packaging and shipping of the steel grating. When loading the vehicle, don't think that the steel grating is thick and not easily damaged and place it randomly with a forklift. When loading the steel grating, it should also be handled with care. The forklift should not simply pick it up and finish. Especially for thinner steel gratings, this can easily cause the steel grating to deform.

I. Severe Deformation
If there is severe distortion and deformation, it may be caused by falling on the ground during transportation or having heavy objects pressed on it during transportation, resulting in deformation. The transportation of steel grating is a very important link. During transportation, many factors can damage the steel grating, causing a lot of inconvenience for the installation of the steel grating. When loading for transportation, it is necessary to put the steel gratings of the same size together, pack them well, and keep the steel grating stable to prevent problems such as falling, friction, and scratches caused by unstable transportation and fixation.
Preventive Measures:
The bearing flat steel and edge flat steel of the steel grating have very high strength on the front side. Unreasonable lateral stress can cause deformation or damage. Therefore, attention should be paid to making the front side of the steel grating bear the force instead of the side.
It is recommended to use nylon hoisting belts for loading and unloading. If wire rope is used for hoisting, attention should be paid to protecting the flat steel on the edge of the steel grating to prevent the outer side of the steel grating from deforming or scratching the galvanized layer.

II. Overload
The long-term use of steel grating leads to excessive bearing capacity, thereby damaging the structure and causing the weld at the joint to crack. If this is the case, it indicates that it has been used for a long time or the excessive load leads to a shortened lifespan. However, if there are problems such as virtual welding during production and the thickness of raw materials not meeting the standard, then this is the manufacturer's fault, including the design layout of the steel grating and the installation mistakes of the steel grating.
If the load design of the steel grating requires a cut in the steel grating, the remaining area of the steel grating can meet the requirements of the design load. The design load of a single-person operating work platform should be above 1.5KN. The maintenance platform is generally designed according to 4KN/m2. The steel grating passage for single-person passage is designed according to not less than 3.0KN/m2. The load capacity of the two-way passage of the steel grating cannot be less than 5.0KN/m2. The load capacity of the high-density pedestrian passage cannot be less than 7.5KN/m2.

III. Corrosion by External Substances
Corrosion and electrochemical corrosion caused by the erosion of chemical substances lead to the corrosion of steel grating components, which will shorten the lifespan of the steel grating. Therefore, hot-dip galvanizing treatment is recommended, which can effectively increase the lifespan of the product. Only daily maintenance is required.

IV. Other Reasons
The steel grating is deformed, distorted, sunken, the cross bars are warped, the connections are cracked, etc. due to various accidents. It is also possible that cracks occur due to excessive temperature differences.

When we use the steel grating in daily life, we should pay attention to its cleanliness. For example, it should be cleaned regularly to prevent it from adhering to various kinds of dirt, so that it can always remain clean. Especially some corrosive and erosive residues. If not cleaned in time, it will cause (lead to, contribute to) the steel grating to be severely corroded because its material itself is of metal quality. The characteristics of the laboratory aluminum alloy grating plate are high strength and light structure: the firm grid pressure welding structure makes it have high load-bearing capacity and light structure. 2. It is convenient for hoisting, etc.
The welded parts of the steel grating should be maintained because the welded parts are galvanized. If the galvanized layer falls off, it will not play a protective role. Therefore, special attention should be paid to the protection of the galvanized layer. Regular inspections should be carried out. If it is found to fall off, timely painting and rust prevention treatment should be carried out on it so as to better maintain the steel grating.
Every time when using it, the bolt part of it should be maintained because it plays a very important role in the entire part. Therefore, regular inspections should be carried out on it. If it is found to be loose, it should be dealt with in time to avoid any potential problems, etc. The stainless steel trench cover plate is a trench (well) cover plate made of steel grating, and there are various models to choose from to suit different span loads and requirements. The stainless steel trench cover plate has a beautiful appearance: simple lines, silver appearance, modern trend.

When people choose materials for decoration, they often have prejudices against emerging materials. Metal decorative nets are representatives of new building decoration materials. Many customers often have concerns about their safety when choosing metal decorative nets.

Metal decorative nets are woven in various weaving methods. No matter which type of metal decorative net is currently on the market, it has undergone many years of research and examination. With years of communication with customers, our company has certain production experience in the production requirements and material selection of metal decorative nets. For the products ordered by customers, we will consider carefully. For metal decorative net orders with potential safety hazards or technical difficulties in installation, our company will suggest that customers change the design plan, and customers can cooperate with our company with confidence. Regarding the raw materials of metal decorative nets, our company guarantees to produce in accordance with customer requirements, and strictly controls the wire diameter and raw material quality. Customers can order with confidence.

The content of alloy elements in the metal decorative net, and good ventilation and the process will also affect stainless steel refining technology. Large stainless steel factories with advanced equipment and advanced metal decorative net processes can control alloy elements, remove impurities, and the environment of steel billets is not easy to reach the guaranteed quantity.

The smelting environment of metal decorative net production enterprises reaches 18-20%. Stainless steel like the metal decorative net will not rust under normal circumstances. The quantity is stable and reliable, the internal quality of the metal decorative net is good, and it is not easy to rust. On the contrary, some small steel mills have backward equipment and processes. During the smelting process, impurities cannot be removed, and the produced metal decorative nets will inevitably rust. Therefore, the metal decorative net rusts and the corrosion resistance of the steel. Poor smelting will also rust.

The external environment of the metal decorative net, a dry climate and high air humidity, continuous rainy weather, stainless steel nets or environmental areas with high acidity and alkalinity in the air are prone to rust. For 304 stainless steel, if the surrounding metal decorative nets. The higher the anti-corrosion property of the metal decorative net, the better. For example, if the content of nickel in the 304 material is and the content of chromium is 10.5%, the steel will not rust easily.

Our products can be used for at least 10 years. Usually we offer a guarantee of 5 to 10 years.

First of all, we do not allow any defective products to leave our factory. We conduct strict quality inspections at every step and guarantee to reduce the defect rate to less than 0.1%.
However, if there are any problems, we will guarantee to solve them within 2 working days after your pictures or videos prove it.

Before painting, the fence must be sandblasted and cleaned three times: water cleaning - stop - water cleaning. The powder we use is from internationally renowned brands such as DuPont or AkzoNobel to ensure that the plastic layer is beautiful, firm, smooth, and the surface is resistant to ultraviolet rays and corrosion.

Don't worry. We will test the tensile strength during the production process to ensure that each product meets the basic standards.