Corrugated board Features:
The surface is flat, and it is not easy to deform when making a large panel. The surface is coated with fluorocarbon roller, the paint surface is uniform and easy to clean. Rich colors (with imitation stone, imitation wood grain color). Light weight. High peel strength and good weather resistance. Good sound insulation and heat insulation performance. Fire rating: Class A
The thermosetting resin used is a resin bonded by heat,
So it has adhesion to metal. High adhesion and impact resistance High shock resistance
High strength, electrical insulation, moisture resistance, chemical resistance, corrosion resistance
Low compression: no saprophytes in reactive hardening so less shrinkage
Low-pressure curability: Adhesive pressure is also sufficient
1-12m or as required
0.6m-3m or as required
0.1mm-300mm or as required
Clean, blasting and painting according to customer requirement
Types of corrugated steel components
Three main structural forms in use in China: a. Corrugated steel plates spliced large highway culvert (span 4m or more) b. Ring corrugated pipe c. Spiral corrugated pipe
The production process of corrugated steel
Corrugated metal pipe is made of hot-rolled steel plate (coil) after rolling or assembled into a corrugated plate, the general thickness of 1.6-8mm, the main steel Q235 (SS400), Q345, etc., the current common domestic processing methods for rolling and molding two rolling forming method can be divided into two, one is first into a circle after the corrugation; another is first formed into a corrugated steel plate tile-like and then spell it into a corrugated pipe. The first method is limited by the size of the pipe billet and transportation conditions, its diameter can not be too large, the diameter of the pipe is generally 0.5-2.5 meters, the length of each section is about 3 meters.
Corrugated pipe is hot-rolled steel plate pressed into corrugated, can increase the stiffness of the pipe section and the resistance strength of the pressure on the pipe axis, factory before the use of hot dipped galvanizing process and construction site spray asphalt, double anti-corrosion treatment to ensure the service life, the culvert built with such pipe section is called steel corrugated pipe culvert.
Complete assembly type: Coil plate - shearing processing - rotary - welding - rolling wave - welding flange - punching (drilling) - hot dip galvanizing - assembly - asphalt anti-corrosion - backfilling construction
Assembly type: Coil plate - shear processing - cold-forming - arc - punching - hot-dip galvanizing - assembly - asphalt anti-corrosion - backfilling construction
I. Short construction cycle
Corrugated steel pipe corridor for the whole corrugated steel pipe (pipe diameter <3m) or assembled corrugated steel plate, its materials are processed and produced in the factory, assembled on site, fast construction, compared with the traditional concrete structure cast-in-place pipe corridor construction cycle can save more than 30%.
2. the price advantage
Corrugated steel structure is a thin shell of steel, its structure is simple and the engineering cost is low. Take 4x3.5m reinforced concrete pipe corridor as an example, its civil construction cost is about 80 million yuan per kilometer, while using φ4.5m corrugated steel structure round pipe instead, its civil construction cost is about 60~70 million yuan per kilometer, and its use function can fully meet the demand. It has obvious advantages over the traditional concrete structure in terms of cost.
3. strong adaptability
Reinforced concrete structure is easy to produce cracks and other diseases when the foundation produces uneven settlement deformation, while corrugated steel structure has the ability to adapt to the foundation and foundation deformation to avoid the problem of structural damage caused by uneven foundation settlement.
4.standard environmental protection
Corrugated steel structure adopts factory standardized design and production, with simple structure and easy quality control. Corrugated steel structure reduces the amount of natural materials such as cement, gravel and sand, which protects the environment and is low-carbon and environmentally friendly.
1.can not eliminate leakage
Piece plate corrugated steel structure due to the use of plate lap, bolt connection fastening, in the plate lap, bolt hole connection can not avoid the existence of gaps, although the current highway engineering applications used in the folder asbestos pad, weathering rubber sealing holes and other waterproofing measures, still can not be a good solution to the problem of leakage, but also can not guarantee the durability of the waterproofing effect.
2. the interface is a difficult point
Corrugated steel structure section to round, pipe arch, oval, horseshoe-shaped, which leads to the design and processing of the interface between the trunk line corridor and branch line corridor complex, and because of its special force structure, the structural force design at the interface is also more complex.
Q:What is your terms of payment?
A:We usually accept T/T in advance, L/C for large sum.If you prefer other payments terms, please discuss.
Q:What is the terms of delivery?
A:EXW, FOB, CIF
Q:What is the terms of packing?
A:Generally, we pack our goods in bundles or coils with rods or belts, we could also pack the goods as the customers' requirements.
Q:What is your delivery time?
A:For products in stock, we can ship it within 7 days after receiving the deposit.For custom order, production time is 15-30
workdays after received the deposit.
Q:Could you produce according to the samples?
A:Yes, we could customer-made by your samples or technique drawings, we could build the mold and fixtures.
Q:Can I place an sample order and what is your MOQ if I accept your quality?
A:Yes, we can send you samples but you may pay the express fees, our MOQ is 1 ton.
Q:How could you guarantee your products?
A:We accept and support the third-party inspection.We also could issue the warranty to customer to guarantee the quality.
Q:How can I get the price of needed product?
A:It's the best way if you can send us the material, size and surface, so we can produce for u to check the quality.If you
still have any confusion, just contact us, we would like to be helpful.