Pultrusion
Pultrusion Process
Pultrusion is a manufacturing process used for the production of fiber reinforced plastic composites , which we normally call it FRP . This process combines many elements effectively which offer a mix of properities and characteristics that can boost efficiency of the final product. It is an automated , highly productive process of fabrication of composites in form of continuous long products of cross-section .
Unlike other processes , pultrusion enables continuous production in a low-labour process that uses a heated die to give any shape to the composite parts.
Who we are ?
Xinbo Composite Products Co.,Ltd .is a professional composite products supplier which gathered a set of research 、production and sales ,with the domestic first-class technology development and manufacturing capability of modern integrated enterprise. .Our company relies on the technology strength of China Aerospace Research Institutes ,gives full play to scientific research and professional technology advantages in the field of composite materials , and committed to carbon fibre, glass fiber fabric and high performance composites production development and application .
who choose us?
We are integrated company who offers One-Stop solutions for carbon composite products , from design , prototype , sample , mass production , delivery and after-sales maintanence .
Our company has passed ISO 9001 Quality Certification Systen as well as international certification SGS .
We have different production manufacturing process and have the ability to customize composite products based on each customer's requirement . We also own more than 8 series production lines , equipped with professional machines to meet various production needs .
one-stop solution
professional team
high quality
fLOW CHART OF PULTRUSION PROCESS
do you have any question?
What colors can I have for GRP rods or tubes ?
White or black GRP products are generally manufactured for the market . We can also produce in other colors , but we have MOQ on color customization .
Is black color the only option for CFRP products ?
Yes , carbon fiber products are always black after pultrusion process .
What is GRP , FRP and CFRP ?
GRP is glass fiber reinforced plastic , FRP is fiber reinforced plastic . GRP and FRP are the same product , but just different terminology . CFRP is carbon fiber reinforced plastic .
Is black color the only option for CFRP products ?
Yes , carbon fiber products are always black after pultrusion process .
What is pultruded product ?
Pultrusion is a continuous process used to manufacture fiber-reinforced polymer composite profiles with a constant cross section .
What is the advantage of pultrusion process ?
Pultrusion process is suitable for mass production . The process is fast and economic . Resin content could be accurately controlled during production .
What is GRP , FRP and CFRP ?
GRP is glass fiber reinforced plastic , FRP is fiber reinforced plastic . GRP and FRP are the same product , but just different terminology . CFRP is carbon fiber reinforced plastic .
Rods are more flexible , will withstand greater bending and are crush resistant . Rods are solid ; Tubes are stiffer and lighter , they are best used for applications where little curvature is required . Tubes are hollow .
Applications of Pultrusion Products
Beams , Channels , Angles
Wall , Roof , Decking panels
Cable and instrumentation tray
Structure support systems
Grating , Ladder and handrail
Pultrusion is a low-cost way of making highly stiff hollow sections of composites. The advantages of pultruded composite profiles in applications include their lightweight, high strength, resistance to corrosion, and fast, easy installation. These properties make them competitive with standard bridge materials in situations where access and construction present difficulties. Composite materials can be designed to provide a wide range of flexural, impact, tensile and compressive strengths. They can be formed into any shape and colour can be added to allow the structures to blend with most landscapes. Composites cost less than stainless or high carbon alloy steel components that might be used in highly corrosive environments.
Pultrusion is presently one of the favoured forms of manufacturing composite components for thousands of items in critical application areas such as infrastructure, telecom, and utilities, and is becoming a mainstay of the global industrial economy.
Construction Industry
Pultrusion products are extensively used in the construction industry for applications such as structural profiles, rebar, gratings, and panels. Pultruded profiles are favored for their high strength-to-weight ratio, corrosion resistance, and low maintenance requirements. These profiles are used in the construction of bridges, buildings, walkways, and other infrastructure projects. Pultruded rebar is also gaining popularity as a substitute for traditional steel reinforcement due to its non-corrosive nature and high tensile strength.
Infrastructure and Civil Engineering
In infrastructure and civil engineering applications, pultrusion products are utilized for creating durable and lightweight components such as guardrails, utility poles, sound barriers, and decking. The corrosion-resistant nature of pultruded materials makes them ideal for outdoor applications where exposure to harsh environmental conditions is a concern. Additionally, pultruded components offer electrical insulation properties, making them suitable for electrical infrastructure projects.
Automotive and Transportation
The automotive and transportation industry benefits from pultrusion products in various ways. Pultruded composites are used for manufacturing lightweight components such as vehicle body panels, chassis reinforcements, and interior parts. The high strength-to-weight ratio of pultruded materials contributes to improved fuel efficiency and reduced overall vehicle weight. Moreover, the corrosion resistance of these materials makes them suitable for use in transportation applications exposed to road salts and other corrosive substances.
Marine and Offshore Applications
Pultrusion products are widely employed in marine and offshore applications due to their resistance to saltwater corrosion. These materials are used for manufacturing boat hulls, decks, handrails, ladders, grating systems, and other structural components. The lightweight nature of pultruded composites contributes to increased vessel efficiency while offering superior durability in marine environments.
Consumer Goods and Recreation
In the consumer goods sector, pultrusion products find application in the manufacturing of sporting goods such as fishing rods, archery equipment, golf club shafts, and bicycle frames. The high strength and stiffness characteristics of pultruded composites make them suitable for creating durable yet lightweight recreational equipment. Additionally, these materials are utilized in the production of consumer goods like luggage frames and cases due to their impact resistance and design flexibility.
Renewable Energy Sector
Pultrusion products play a vital role in the renewable energy sector by providing durable solutions for wind turbine blades, solar panel frames, support structures for solar arrays, and other renewable energy applications. The excellent fatigue resistance and dimensional stability of pultruded composites make them well-suited for withstanding the demanding conditions encountered in wind energy installations and solar power systems.
Advantages of Pultruded products
hIGH STRENGTH
High strength to weight ratio is also known as specific strength , similar to the stiffness to weight ratio. Carbon fiber profiles are strong yet lightweight, making them ideal for applications where weight reduction is crucial.
HIGH STIFFNESS
Carbon fiber does extremely well in the stiffness factor , it's about 3 times stiffer than steel and aluminum for a given weight. Manufactured with 100% undirectional fibers makes pultruded tubes with the best longitudinal stiffness .
tHICKNESS CUSTOMIZATION
Inner diameter of a pultruded tube is determined by a mandrel , which is easy to exchange for a different size , this makes it easily to produce tubes with various thickness .
Process Description
The Pultrusion process is a highly automated continuous fibre laminating process, producing high fibre volume profiles with a constant cross section. Having a high fibre volume fraction makes pultrusion an ideal process for structural component production giving a high strength to weight ratio.
The process starts with the support of the reinforcements, and they can be glass, carbon or aramid. The material is pulled into the infeed area,then the impregnated reinforcement is pulled into the heated pultrusion die, and it is accurately formed to the required shape. From the puller units the profile passes into the flying cut off saw where it is cut to the required length.
The advantage of pultruded process is that it produces a continuous, unidirectional length of tubing that can be cut to size after curing. Since pultrusion is highly automated, it’s a much more cost-effective production process than both roll wrapping or filament winding. Pultrusion makes it easy to produce tubing in various lengths and thicknesses simply by changing up both mandrel and die.
XINBO COMPOSITE is one of the top level pultruded products manufacturers in China, with professional skills, we are able to produce pultruded products with high strength and good quality. We can also customize products according to client's requirement.
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