Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for continuously producing pultrusion epoxy glass fiber boards for ultra-long time

An epoxy glass fiber, ultra-long-term technology, applied to other household appliances, household appliances, flat products, etc., can solve the problems of increased surface defects, product defects, fatigue performance reduction, etc., to delay aging glue and improve production Efficiency, the effect of solving the problem of old glue

Pending Publication Date: 2021-09-17
四川东树新材料有限公司
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, in the production process, especially after 5-10 days of production, due to the excessive reaction of the resin during use, after the appearance of old glue, the surface defects of the board increase, the mechanical properties of the board in the 90° direction decrease, and the fatigue performance decreases.
The impact of old glue on production efficiency. Once old glue appears, if it is not cleaned up in time, there will be serious defects in the product until the machine is shut down and continuous production is interrupted.

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
  • Method for continuously producing pultrusion epoxy glass fiber boards for ultra-long time

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] like figure 1 As shown, a method for continuous production of a pultruded epoxy glass fiber board for a long time, comprising steps:

[0021] 1) Yarn withdrawal from the creel: pull out the yarn from the yarn cluster, and gather the required amount of yarn together through the creel device;

[0022] 2) Yarn spreading and guiding: guide the yarn from the yarn cluster to the next step, and spread the yarn to relieve the twist of the yarn and make the yarn soft;

[0023] 3) Double glue tank dipping: let the yarn fully soak in the dipping tank, the dipping tank includes the first dipping tank 7 and the second dipping tank 8; first dip the yarn into the first dipping tank 7 , then the yarn immersed in the first dipping tank 7 is immersed in the second dipping tank 8; when the yarn is immersed in the second dipping tank 8, the first dipping tank 7 is cleaned; When dipping into the first dipping tank 7, clean the second dipping tank 8, and reciprocate in this way to avoid th...

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

No PUM Login to View More

Abstract

The invention discloses a method for continuously producing pultrusion epoxy glass fiber boards for an ultra-long time. The method comprises the following steps of (1) unwinding yarns on a creel; 2) spreading and guiding yarns; 3) impregnating in double steeping vats; 4) performing; 5) curing and molding a mold; and 6) curing through a post-curing oven to obtain a qualified product, wherein impregnating in the double glue tanks in the step (3) is used for fully impregnating the yarns in steeping vats, and the steeping vats comprise a first steeping vat and a second steeping vat; firstly, the yarns are impregnated into the first steeping vat, and then the yarns impregnated into the first steeping vat are impregnated into the second steeping vat; when the yarns are impregnated in the second steeping vat, the first steeping vat is cleaned; and when the yarns which are not impregnated are impregnated into the first steeping vat, the second steeping vat is cleaned, and the operation is repeated, so that old glue is avoided. According to the method, the problem of old glue can be solved, field production can be well controlled, continuous production without shutdown is realized, and the production efficiency is further improved.

Description

technical field [0001] The invention relates to the production of fiberboards for wind power blades, in particular to a method for continuous production of pultruded epoxy glass fiberboards over a long period of time. Background technique [0002] The main beam of the wind turbine blade is the main load-bearing part of the wind turbine blade, which controls the overall stiffness and ultimate strength of the wind turbine blade in the span direction. With the development of wind power at low wind speeds and offshore, the size of the blades is getting larger and larger, and the weight and bearing requirements of the blades are also increasing, which brings huge challenges to the design of wind power machines and blades. Pultruded sheets are used in the manufacture of wind turbine blades. Carbon fiber pultruded sheets are the first to be used. Carbon fibers have the performance advantages of high specific strength and high specific modulus, which can meet the strength and stiffn...

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): B29C70/52B29L7/00
CPCB29C70/521B29L2007/002
Inventor 钟连兵张林张文丁周百能翟保利余成杰李陈洪肖毅苟鹏飞
Owner 四川东树新材料有限公司
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More