Year1
- 扁钢厚度：
- 3mm
- 扁钢宽度：
- 25mm
- 电话：
- 15374053248
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Ditch covers can also be called ditch covers, manhole covers, ditch grates, water grates, rainwater grates, road gratings, etc. Different regions have different names for trench covers, which all refer to a type of trench cover steel grating product.
In order to try to avoid the problem of pedestrian injuries caused by theft of ditch covers, Guangzhou Lifan Screen Co., Ltd. is committed to innovation and finally developed a modern low-carbon screen with strong bearing capacity, easy installation, and safety and anti-theft. Steel trench covers are cheaper than cast iron trench covers and have the effect of drainage and ventilation. Most importantly, after the surface is hot-dip galvanized, the trench covers have good anti-corrosion and anti-rust capabilities, extending the length of the trench. The service life of the trench cover increases, thereby increasing the use value of the trench cover.
Ditch cover product classification:
Generally, we can divide ditch covers into hot-dip galvanized ditch covers, stainless steel ditch covers, spray-coated ditch covers, etc. based on different materials.
According to the shape of the ditch cover, it can be divided into: ordinary ditch cover, shaped ditch cover, tubular ditch cover and openable ditch cover
Ditch cover material:
Flat steel: made of stainless steel or stainless steel, available in ordinary flat type, anti-skid tooth type and cross-section type. Commonly used specifications include *,
Crossbar: made of round steel, twisted square steel, square steel or hexagonal steel or stainless steel. Twisted square steel is made of coiled steel, drawn and twisted by a square die. Its commonly used specifications include *, *, *, etc.
Concrete: The material is reinforced concrete with a strength of up to 100%. It has strong load-bearing capacity, low cost and simple maintenance.
Features of ditch cover:
, Beautiful appearance: simple lines, silver appearance, modern trend.
, Best drainage: the leakage area reaches .%, which is more than twice that of cast iron.
, Hot-dip galvanizing: strong rust resistance, maintenance-free and replacement-free.
, Anti-theft design: The cover and frame are hinged, anti-theft, safe and easy to open.
, saving investment: large span, heavy load, lower price than cast iron and saving the cost of replacement if stolen or crushed.
. High strength: The strength and toughness are much higher than cast iron, and it can be used in long-span and heavy-load environments such as docks and airports.
. Various specifications: to meet the needs of different environments, loads, spans, sizes and shapes.
This product is simple to construct, light in weight, good in load-bearing, impact-resistant, large in drainage, beautiful and durable after hot-dip galvanizing, and anti-corrosion. These features are incomparable to cast iron trench covers. It adopts hinge connection or hook connection, which is easy to open and has anti-theft function.
Application of ditch cover:
Ditch cover is mainly used in some factories and high-end residential areas. This is mainly because cement ditch covers are often crushed and the road surface is also damaged. Therefore, trench covers made of steel grating are used to suit different load loads. Because the trench cover is simple to construct, light in weight, good in load-bearing, impact-resistant, large in drainage, beautiful and durable after hot-dip galvanizing, and anti-corrosion, it has incomparable advantages than cast iron cover. And it adopts hinge connection or hook connection, which is easy to open and has anti-theft function. It is widely used in factories and some high-end residential areas. Since 2007, my country's ditch cover market has become more widely used in different places such as municipal roads, garden facilities, residential areas, schools, and stadium management. The national design requirements for steel grating plate products have relevant instructions for steel grating plates and steel grating plate products.
Steel grating is a steel product made of flat steel arranged crosswise with crossbars (twisted, square steel, round steel, flat steel, etc.) at a certain distance and welded into a square grid in the middle. Steel gratings are mainly used to make ditch covers, steel structure platform plates, steel ladder treads, etc. Crossbars generally use twisted square steel. Steel gratings are generally made of carbon steel, and the surface is hot-dip galvanized to prevent oxidation. It can also be made of stainless steel. Steel grating has ventilation, lighting, heat dissipation, anti-skid, explosion-proof and other properties.
Packaging of steel gratings
Packaging of steel gratings is usually in bulk or bundled with packing tapes. This is mainly based on the customer's situation. If the goods are not large, there is no need to use a forklift for loading and unloading. , generally it is more convenient to pack in bulk. On the contrary, if there are a lot of goods, it will be more convenient to use general packaging for forklift loading and unloading. In short, everything is for the convenience of the customer and to protect the products from damage during transportation.
Production standards for steel gratings
The latest version of steel grating standards (2018). In addition, the United States, China, Australia and China also have their own standards, and can also be produced according to British B and American (B) standards. Steel standards are implemented in accordance with B, B.
Steel grating surface treatment methods
Hot dip galvanizing, cold galvanizing, spray painting, dipping in anti-rust oil, dipping in plastic, no treatment.
How to make steel grating
Pressure-welded steel grating is composed of load-bearing flat steel and cross bars arranged at a certain distance in longitude and latitude. It is welded into the original plate using tons of hydraulic resistance welding automation equipment. After cutting and opening, The products required by customers are processed through processes such as hemming.
Spacing between loaded flat steels: the center distance between two adjacent loaded flat steels. There are two commonly used ones.
The spacing between two adjacent crossbars is usually , and there are two types, which can be produced according to customer requirements.
Compared with patterned steel plates and other gratings, steel gratings have the following advantages:
Material saving: It is the most material-saving method under the same load conditions. Correspondingly, it can reduce the material of the supporting structure.
Reduce investment: Save materials, save labor, save construction period, and eliminate cleaning and maintenance.
Easy construction: Use bolt clamps or welding to fix the pre-installed supports, and it can be completed by one person.
Save construction period: The product does not require on-site reprocessing and installation is very fast.
Durable: It has been hot-dip galvanized for anti-corrosion treatment before leaving the factory, and has strong resistance to impact and heavy pressure.
Modern style: beautiful appearance, standardized design, ventilation and light transmission, giving people an overall smooth and modern feeling.
Light structure: less material is used, the structure is light, and it is easy to hoist.
Anti-dirt accumulation: Does not accumulate rainwater, ice, snow and dust.
Reduce wind resistance: Due to good ventilation, wind resistance is small in strong winds, reducing wind damage.
Simple design: no small support beams are needed, the structure is simple, and the design is simplified. There is no need to design detailed drawings of steel gratings. Just indicate the model. The factory can design the layout plan on behalf of the customer.
Good ventilation, lighting, heat dissipation, explosion-proof, and anti-slip properties: Acid and alkali corrosion ability: Within the range of to., a stable protective film is formed on the surface of the zinc layer, and the corrosion resistance is good.
Steel grating price calculation formula
The weight of steel grating refers to the theoretical weight after edge wrapping and surface treatment (except non-surface treatment). Due to differences in binding, openings and cuts, the actual weight will differ from the theoretical weight. In the calculation of the self-weight of industrial platform steel gratings and the settlement of delivery of steel gratings, the theoretical weight is uniformly used as the basis for calculation. For steel gratings less than one meter in length, such as trench cover plates or steel gratings that require special edging, the weight will increase due to the increase in edging plates. When the edge is wrapped with flat steel and the length of the steel grating is not less than one meter, the theoretical weight of the steel grating is calculated according to the following formula: (b+b+b) () In the formula, the weight of the steel grating is in kilograms per square meter () load-bearing flat Steel width, in millimeters () b Thickness of load-bearing flat steel, in millimeters () Number of load-bearing flat steel bars per meter of steel grating Width of crossbars, in millimeters () b Thickness of crossbars, in millimeters () per meter The number of crossbars in meters of steel grating The width of the edged flat steel, in millimeters () b The thickness of the edged flat steel, in millimeters () Material density, in kilograms per cubic meter () The steel density is calculated according to the surface treatment increase The weight coefficient of hot-dip galvanizing is calculated according to.
Classification of steel gratings
, Stainless steel gratings
() Product name:
Stainless steel gratings are used in various industries at home and abroad It is widely used in factories and engineering projects.
() Classification
Stainless steel gratings can be divided into flat type, tooth type, and type, with multiple specifications and varieties (different protective treatments can be carried out on the surface according to different use environments).
) Production method
Machine pressure welding uses a high-voltage resistance pressure welding machine. The robot automatically places the crossbar horizontally on the evenly arranged flat steel, and presses and welds the crossbar into the uniformly arranged flat steel through powerful electric welding power and hydraulic pressure. In the flat steel, a high-quality steel grating with strong welding joints, extremely high stability and strength can be obtained. Stainless steel grating has the characteristics of light weight, high strength, large load-bearing capacity, material saving and economy, ventilation and light transmission, modern style, beautiful appearance, anti-skid and safe, easy to clean, easy to install, and durable.
()Features
), light weight, high strength, large carrying capacity, material saving and economy, ventilation and light transmission, modern style and beautiful appearance.
), anti-slip and safe, easy to clean, easy to install and durable. Other varieties
, Platform steel grating
Platform steel grating is a widely used product. This type of steel grating is widely used in various industrial fields and has the strongest resistance to surface impact. force, especially the steel grating with a spacing of cross bars has a strong ability to resist lateral impact.
Platform steel grating is suitable for alloy, building materials, power stations, boilers, shipbuilding, petrochemical, chemical and general factory buildings, municipal construction and other industries. It has ventilation and light transmission, anti-skid, strong bearing capacity, beautiful and durable, and easy to clean. Installation is a new and updated building product. You can add welding kick plates (sidewalls), pattern plate guards, and install connectors and other accessories around the perimeter. Flat steel with different specifications from the load-bearing flat steel can be used for edging, or angle steel, channel steel, square tube, etc. can be used for edging. Handles and hinges can also be installed on steel gratings that need to be moved or opened frequently.
Features of the platform steel grating:
It is possible to add welding kick plates (sidewalls), pattern plate guards, and install connectors and other accessories around the perimeter.
Use flat steel with different specifications from the load-bearing flat steel for edging, or use angle steel, channel steel, square tube, etc. for edging.
, handles and hinges can be installed on the steel grating of the platform that needs to be moved or opened frequently.
, Gutter cover
Designed and manufactured with steel grating, it is widely used in various industrial and civil buildings such as urban roads, squares, gardens, docks, airports, parking lots, highways, railways, and industrial projects.
Product features:
Beautiful appearance: simple lines. Silver appearance, modern trend.
Best drainage: The leakage area reaches .%, which is more than twice that of cast iron.
Hot-dip galvanizing: strong rust resistance, maintenance-free and replacement-free.
Anti-theft design: The cover and frame are hinged, anti-theft, safe and easy to open.
Saving investment: big span. When heavy-duty, it is cheaper than cast iron and saves the cost of replacement if it is stolen or crushed.
High strength: The strength and toughness are much higher than cast iron, and it can be used in long-span and heavy-load environments such as docks and airports.
Multiple specifications: to meet different environments and loads. Span, size and shape required.
, Steel grating panels
Manufacture various types of steel grating panels according to B standards.
The products are used in industrial platforms, overpasses, stair treads, inner covers, etc.
Composite steel grating
It is a product composed of a steel grating with a certain span capacity and a pattern plate with a sealing surface. It can be used with any type of steel grating and different Thickness of industrial chemical steel plate. But the most commonly used steel grating is a thick plate commonly used for low-plate patterned steel plates. Or plates can also be used.
How to fix the steel grating
There are two ways to fasten the steel grating: welding and mounting clamps. The advantage of welding is that it is permanently fixed and will not loosen. The specific location is on the first flat steel at each corner of the steel grating. The length of the weld is not less than that of the fillet weld and the height is not less than that of the fillet weld. The advantage of the installation clip is that it destroys the hot-dip zinc layer and is easy to disassemble. Each board requires at least one installation clip. The number of installation clips increases as the length of the board increases. The safest method is to weld the screw heads directly to the beam without clamping to ensure that the steel grating will not slip off the beam due to loose mounting clamps.
, Plug-in steel grating
Plug-in steel grating is also called compressed steel grating. It is made of plain carbon flat steel, stainless steel, brass plate, and aluminum plate of a certain size through slotting (holes) and inserting. Made by joining, welding, finishing and other processes. It has many advantages such as lightness, high strength, anti-corrosion, maintenance-free, and beautiful appearance. It is widely used in civil and commercial buildings, theaters, subways, urban railways and other municipal engineering fields. It can be used in suspended ceilings, indoor and outdoor decoration, platform walkways, ventilation windows (wells) ), advertising, various covers, etc.
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