Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Gum dipping equipment and pultrusion device comprising same

A kind of equipment and dipping technology, which is applied in the field of composite material processing, can solve the problems of shortened operation period, increased viscosity, high bubble rate of finished products, etc., and achieve the effects of stable drawing force, improved resin replacement rate, and good infiltration

Pending Publication Date: 2022-05-06
COVESTRO DEUTSCHLAND AG
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, commonly used epoxy-anhydride resins and polyurethane resins will increase the viscosity due to moisture absorption and increase in ambient temperature, shorten the operating period, and have a high air bubble rate in the finished product, which will eventually lead to defects in the finished product

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Gum dipping equipment and pultrusion device comprising same
  • Gum dipping equipment and pultrusion device comprising same
  • Gum dipping equipment and pultrusion device comprising same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0079] refer to figure 1 , dipping equipment 1 comprises:

[0080] Dipping tank 11;

[0081] The first preformed formwork 12 arranged in the dipping tank 11, the position of the first preformed template 12 in the dipping tank 11 can be adjusted and several first threading positioners arranged in an I-shape are arranged on it. Hole 121 (aperture is 5 mm, the horizontal hole spacing L1 is 8.5 mm, and the longitudinal hole spacing L2 is 10 mm);

[0082] The jacket 13 arranged on the outside of the dipping tank 11 is used to accommodate the fluid for adjusting the temperature of the dipping tank 11. The bottom of the jacket 13 is provided with at least one inlet and outlet passage (not shown) communicated with the fluid bath (not shown) to realize circulation of a fluid, the fluid bath may be connected to a temperature control device (not shown) to regulate the temperature of the fluid; and

[0083] The dust-proof cover 14 arranged above the dipping tank 11 has a ventilation ...

Embodiment 2

[0085] refer to image 3 , a pultrusion device for preparing fiber-reinforced resin composites, including:

[0086] Fiber rack 2,3;

[0087] In the dipping equipment 1 of fiber frame 2,3 downstream, dipping equipment 1 is as described in embodiment 1;

[0088] In the second preforming template 4 downstream of the dipping equipment 1, some second threading positioning holes 41 are arranged on the second preforming template 4, and the arrangement of the second threading positioning holes 41 on the second preforming template 4 is the same as The arrangement of the first threading positioning holes 121 on the second preforming template 12 is the same;

[0089] a curing forming device 5 downstream of the second preforming template 4; and

[0090] Pulling device 6 downstream of curing molding device 5 .

Embodiment 3

[0092] In this example, the fiber-reinforced resin composite material was prepared using the pultrusion apparatus in Example 2.

[0093] refer to figure 1 with image 3 , wherein the dust cover 14 is not installed and the fluid for adjusting the temperature of the dipping tank is not contained in the jacket 13 .

[0094] 194 bundles (2400tex) of glass fiber yarns are drawn out from creels 2 and 3, and they are passed through the first preliminary positioning hole 121 and the second positioning hole 41 through the first threading hole 41 in the dipping device 1 together successively. The forming template 12 and the second preforming template 4 downstream of the dipping device 1 adjust the positions of the first preforming template 12 and the second preforming template 4 so that the angle between the fibers before and after entering the first threading positioning hole 121 A is 120°. The dipping tank 11 is filled with aliphatic polyurethane resin (Desmocomp AP200 from Covest...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Viscosityaaaaaaaaaa
Login to View More

Abstract

The invention relates to gum dipping equipment, a pultrusion device comprising the gum dipping equipment and a pultrusion method using the gum dipping equipment. The gum dipping equipment comprises a gum dipping tank and a first pre-forming template arranged in the gum dipping tank, the position of the first pre-forming template in the gum dipping tank is adjustable, and a plurality of first yarn threading positioning holes are formed in the first pre-forming template. According to the impregnation equipment, fibers can be unfolded in the impregnation tank, sufficient impregnation and uniform tension of the fibers can be ensured, and the resin replacement rate is increased. When the pultrusion device is used for preparing the fiber reinforced resin composite material, the drawing force is stable, and the obtained finished product is good in infiltration.

Description

technical field [0001] The invention belongs to the field of composite material processing. In particular, the present invention relates to a dipping device and a pultrusion device including the same. Background technique [0002] The pultrusion process is a composite material forming process, and its basic process is to use reinforced fiber materials (such as glass fiber roving, glass fiber continuous mat and glass fiber surface mat, etc.) Forming template guide, heat mold curing to obtain profile products and cut into a certain length according to the requirements of use. [0003] At present, the production of thermosetting resin-based composite materials mainly adopts the open impregnation method, that is, after the fibers or fabrics or felts pass through the impregnation tank with pressure rollers or pressure bars, the fibers impregnated with resin are formed and extruded through pre-formed templates. Then enter the heated mold for curing. During the impregnation proc...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B29C70/52B29C70/54
CPCB29C70/521B29C70/525B29C70/54
Inventor 陈如其刘立果邓妍
Owner COVESTRO DEUTSCHLAND AG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com