Anti-corrosion Municipal engineering water supply pipeline interface of fiberglass filament wound

Municipal engineering water supply pipeline interface of glass fiber filament wound​

USES structure and characteristics

Carbon fiber profile is a kind of high strength and modulus of high temperature resistant fiber, high-end

varieties for chemical fiber.Because carbon fiber is light and hard, so its application is very extensive.
A, use:
Made of carbon fiber profile reinforced plastic light texture, high temperature resistant, radiation protection,

water resistance, corrosion resistance, is manufacture of aircraft, weapons and corrosion resistant

equipment excellent material.
In recent years, carbon fiber is widely used in large aircraft, such as the A350 and A380 airbus, Boeing

787 using carbon fiber composite materials to reduce fuel consumption.
Another large wind turbine blade, the car, vehicle body, are an important factor of carbon fiber composite

materials demand increase.Bicycle use carbon fiber composite material as the frame, but because of

carbon fiber composite materials manufacturing cost is high, more than for the higher-order type to use.
Second, the structure and features:
Each carbon fiber composed of thousands of tiny carbon fiber profile more, about 5 to 8 microns in

diameter.At the atomic level of carbon fiber and graphite is very similar, is made up of layers of carbon

atoms arranged in hexagonal shape.The difference between the links between layer and layer.Between

layers of graphite crystal structure, it is loosely connected, and carbon fibre are not crystal structure, the

connections between the layers is irregular.So to prevent slip to enhance physical strength.
General carbon fiber density of 1750 kg/m3.High heat conduction ability but the capacity of the battery is

low, the heat capacity of the carbon fiber is lower than copper.When heated, carbon fiber can become

thick and short.Although carbon fiber natural color is black, but can take it with a different color.

Main Performance

Applied in engineering

Commonly used in civil engineering material with cement, sand, steel, wood, brick, etc., in which the

combination of concrete and reinforcement is considered to be the most widely used structural materials.

But as the growth of the structure service time, more and more problems are exposed, the representative

of which is reflected by the emergence of "crisis" of concrete in the 1980 s of the durability of the concrete.

The application of steel structure also has a certain proportion, it overcome the weakness of their heavy

concrete structure, but in the use of yield in the high temperature and brittle fracture in the earthquake,

the representative of which is the United States "9 · 11" incident and the hanshin earthquake in Japan.Get

a rapid development of materials science in the 20th century, the fiber composite material was applied in

civil engineering, glass fiber reinforced plastic is the most widely used in it.The application of this kind of

material to make the structure of civil engineering, functional diversity, flexible but lower modulus of glass

fiber reinforced plastic, limits its application as a structural material in civil engineering.
Carbon fiber than high strength and modulus ratio, and 10 times respectively steel more than 5 times;At

the same time it also has excellent electric and magnetic resistance, high temperature resistant

performance and resistance to chemical attack, is considered the best comprehensive properties of

advanced materials, so its application in various fields to promote very quickly.The application of carbon

fiber flexible and varied in form, which can use the long fiber as structure material, and use the short

fibers as functional materials;(2) substrate but resin and can be cement;(3) with the matrix of composite

material can be placed in the component appearance but also in internal components;(4) can be used

independently and can be blended with other fibers used;5. The composite material is anisotropic material,

thus can change performance in all directions, especially the material can be designed into expansion

coefficient is zero.Carbon fiber in many aspects in civil engineering can take advantage of its performance.
(2) the application status of carbon fiber in civil engineeringThe carbon fiber mainly structural materials

and functional materials in two forms used in civil engineering,including most used as structural materials.


Outlook

Carbon fiber in civil engineering applications of the biggest obstacles is the price, so how to reduce the

cost of carbon fiber, increase the number of the use of carbon fiber is the key to the urgent topic, this

mainly involves two aspects of raw materials and production technology.Should not only improve carbon

fibers and matrix, the properties of bonding materials, make it meet the requirements of special

environment such as high temperature, corrosion, and developed can meet the demand of large civil

engineering structure size of production technology.Theory of another, the study of carbon fiber itself is

not enough, in the civil engineering design theory is not mature, also can only rely on using a larger safety

factor to ensure the reliability of the structure.Set by the use of carbon fiber at home and abroad there

exist great differences in standards, unity and strengthen the norms and standards is also a key to

promote its application.Advantage is its specific strength and carbon fiber than high modulus, which made

the structure of light weight, high strength is the main direction of future development.Excellent

comprehensive performance of carbon fiber, make its at the same time, as structural materials and

functional materials application research is also quite important, it can solve many occasions other

materials can't solve the problem.At present, the combination of carbon fiber and concrete is mainly in

terms of reinforcement, and less in application in the design of the original structure.Because of the cost

issues, permanent template also give priority to with glass fiber.Carbon fiber application research work in

this respect is in the initial stage, limited to the beam and column, were no reports of concrete floor and

wall.And carbon fiber in civil engineering application has a very broad space for development.

Display

Shanghai Lijin focuses on the Carbon Fiber industry and offers carbon fiber tubes, plates, and aluminum CNC services.

Being experienced in the carbon fiber applications for over 7 years, Shanghai Lijin manages customized production according to various industry standards. Shanghai Lijin started to keep in stock for some standard

sized and frequently ordered tubes and plates. This enables Shanghai Lijin to make prompt delivery. Not only

can Shanghai Lijin complete mass production orders in short period, we can even ship normal sample, prototype orders of Carbon Fiber Plate CNC parts in just SEVEN days after order confirmation when the

drawings are available. Shanghai Lijin is dedicated to solve any technical points during the production and new item developing to ensure the quality.

Carbon Fiber tube production is Shanghai Lijin’s core business and occupies 70% of our turnover.
The carbon fiber tubes Shanghai Lijin mainly produce is table-rolled and oven thermoset. The tubes can be Full Carbon or Carbon Fiber and Fiberglass composite, depending on the application, weight limit,mechanical

strength and surface requirement.Shanghai Lijin offers top quality ROUND carbon fiber tubes. The general OD tolerance we achieve is +/-0.10mm and it can be even +/-0.05mm after our special surface process.

The maximum length of the tube can be 5500mm.

Besides the traditional table-rolled carbon fiber tubes, Shanghai Lijin also offers REAL Filament wound carbon fiber tubes,which are widely used for mechanical strength like auto driving shaft, antennas, even for military

applications. The filament wound carbon tubes are wound at a certain angle like 30 or 45 degree. We invested the new production line from Jun 2013 and this increases Shanghai Lijin’s advantage in the carbon

fiber tube industry. There are just a few real filament wound carbon fiber tube manufacturers in domestic

China and we are one of them.

Since the rapid growth of UAV in the international market, instead of the standard plane like Phantom from DJI, RC fans are getting more interested in the customized multicopters. As carbon fiber is the most preferred

material for UAV, Carbon Fiber CNC parts demand is increasing. Shanghai Lijin sticks to offering OEM service for the international market, fine quality and prompt delivery.To ensure the thickness tolerance +/-0.10mm and minimum warp of the Carbon Fiber plates that are used for the cutting, Shanghai lijin execute high standard to

the plate production. For the normal thicknesses including 1.0mm, 1.2mm, 1.5mm, 2.0mm, 2.5mm, 3.0mm,
Shanghai Lijin keeps regular stock, to make sure the raw material will be available for cutting immediately when order is firmed.Experienced engineers are in Shanghai Lijin’s office ready to deal with different types of

drawings from customers. No matter the drawing formats are .DWG, .DXF that can be edited by AutoCAD

and used directly for production, 3D drawings like .IGS, or even draft drawings, our staff can do adjustment and change to customer’s idea. Our engineers are also good at English communication, Email and IM is easy

for them. Editing drawings for customers is FREE* of charge. Shanghai Lijin is having several professional CNC machines for carbon fiber cutting and drilling, with the capacity of cutting 20-50pcs standard full sized plate per day. The carbon fiber chassis general cutting tolerance Shanghai Lijin offer is +/-0.02mm. The

special designed cutting solution ensures the smoothness of the cutting edge.

‘Customers’ Persuit for Change, Lijin’s Motivation for Growth’, Shanghai Lijin takes customers’ demand for center, enhances the
customer satisfaction, and grows with customer.