Carbon Fibre Tube Manufacturing Custom-Made 3K Carbon Fiber Tubes

Carbon fiber tube manufacturing involves several key processes to create high-quality and reliable composite tubes. These tubes are used in various industries due to their lightweight, high-strength, and corrosion-resistant properties. Here's an overview of the typical manufacturing steps:

1. Design and Material Selection: The first step involves designing the carbon fiber tube according to the intended application. Engineers consider factors such as required dimensions, mechanical properties, and performance characteristics. The specific type and grade of carbon fiber and resin matrix are selected based on the desired performance and cost considerations.

2. Preparation of Mandrel: A mandrel is a mold or form around which the carbon fiber will be wound during the manufacturing process. It is typically made from materials like metal, plastic, or foam. The mandrel's shape and dimensions must match the desired specifications of the final carbon fiber tube.

3. Prepreg Fabrication: Prepregs are carbon fiber sheets pre-impregnated with epoxy resin. These prepregs are created by coating the carbon fibers with the resin and then curing them partially. The resin is in a semi-solid state, allowing the prepreg to be easily handled and cut to size.

4. Winding Process: The prepregs are cut into strips or tapes and then wound around the mandrel in a precise pattern. The winding process can be automated or done manually, depending on the complexity of the design and the scale of production. The winding pattern, fiber orientation, and number of layers are crucial in determining the tube's mechanical properties.

5. Curing: Once the carbon fiber layers are wound around the mandrel, the assembly is placed in an oven or autoclave for curing. The curing process involves subjecting the composite to elevated temperatures and pressure, allowing the epoxy resin to fully harden and bond the carbon fibers together.

6. Demolding and Trimming: After curing, the tube is removed from the mandrel. Any excess material or uneven edges are trimmed to achieve the final desired dimensions.

7. Surface Treatment: Depending on the application, the carbon fiber tube's surface may undergo additional treatment, such as sanding or applying coatings, to improve its appearance, smoothness, or adhesion properties.

8. Quality Control: Comprehensive quality checks are performed on the finished carbon fiber tubes to ensure they meet the required specifications and standards. This may involve inspections for defects, dimensional accuracy, and mechanical properties testing.

9. Finishing and Assembly: If needed, additional components or fittings can be attached to the carbon fiber tube, preparing it for its final use or integration into larger systems.

It's worth noting that carbon fiber tube manufacturing can be a complex and specialized process. Automated machinery and advanced manufacturing techniques have enabled more efficient and consistent production of carbon fiber tubes, meeting the demands of various industries like aerospace, automotive, sports, and marine applications.

Our Service:

1. It ensures that a year of quality assurance and 24 hours online customer service.
2. Protection of your sales area, ideas of design, and all your private information.
3. Request for samples is accepted.
4. Drilling and slotting are accepted.
5. We guarantee the products to be manufactured with the finest materials and mature technics.
All tubes can be repaired at no charge if returned to us, postage prepaid, within one year.

FAQ:

1. Can you produce according to the samples or drawings?
Yes, we can produce your samples or technical drawings. We can create the molds and fixtures.

2. What are your terms of payment?
Usually, we accept T/T, irrevocable L/C at sight. For regular orders, Terms of payment 30% deposit, balance before shipment.

3. What is the lead time?
It usually takes 25 to 35 days after sample confirmation and receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.

4. What are your terms of packing?
Generally, we pack our goods in neutral cartons. It is fragile we will make the wooden frame. and we also can according to your requirements.

5. What are your terms of delivery?
We accept EXW, FOB, CIF, etc. You can choose the one which is the most convenient or cost-effective for you.

6. How to solve the quality problems after sales?
Take photos of the problems and send them to us. We will make a satisfied solution for you within 24 hours after we confirm the problems.

7. Is it OK to print my logo on carbon fiber products?
Yes. Please inform us formally before our production and confirm the design firstly based on our sample.

8. You are a manufacturer or trading company?
We are a factory. Welcome to visit our factory at any time.

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.