Method and apparatus for quality control in the manufacture of composite materials

A technology for composite materials and quality control, which is used in the field of quality control and equipment in the manufacture of composite materials, and can solve problems such as lack of product properties

Inactive Publication Date: 2011-12-28
UPM-KYMMENE OYJ
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The process or product properties are not controlled based on temperature observations

Method used

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  • Method and apparatus for quality control in the manufacture of composite materials
  • Method and apparatus for quality control in the manufacture of composite materials
  • Method and apparatus for quality control in the manufacture of composite materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] In this test, the examiner passes the figure 1 The formation of agglomerates in the mixing equipment and the quality of the agglomerates provided.

[0065]The quality of the agglomerates is controlled by observing process variables and adjusting the control parameters of the mixing process, ie the supply of raw materials, additional material and additional plastic, and the rotational speed of the mixer, based on the observations obtained from the process variables. Process variables to be observed include temperature and current consumption. If necessary, the supply of raw material, additional material and / or additional plastic can be interrupted.

[0066] figure 2 Provides the current draw measured during the test as a function of temperature. The resulting process variable curves were compared to known process variable curves for the formation of agglomerates of good quality. Based on this comparison, the control parameters are adjusted to the correct direction t...

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Abstract

The invention relates to a method and an apparatus for controlling the quality in the manufacture of composite material which contains fiber based and polymer based material, wherein the manufacture includes a mixing process (1) to form agglomerates from a raw stock mixture. According to the invention, a combination of variables in the mixing process is observed, wherein the variables are selected from the group of moment, current consumption, time, sound, temperature and their combinations, and the mixing process as well as the quality of the agglomerates to be formed is controlled based on the acquired observations (6, 7).

Description

field of invention [0001] The invention relates to a method as defined in the preamble of claim 1 and to an apparatus as defined in the preamble of claim 13 for quality control in the manufacture of composite materials. Background of the invention [0002] Known from the prior art are different methods and devices for feeding solid raw materials to a manufacturing process and / or pre-treating them prior to actual treatment. In processes using large quantities of solid feedstock, observing the quality of the feedstock is problematic. In most analytical methods, the sample size is so small that no reliable information can be obtained on the actual quality of the raw material. In addition, observing the quality of intermediate products during their manufacture is problematic. It is known that information on the quality of intermediates is obtained only by determining the properties of the completed intermediates. [0003] There is no industrial application for observing the q...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29B7/72B29B7/28B29B7/02
CPCB29B7/005B29B7/183B29B7/92B29B7/286B29B7/283B29B7/02
Inventor L·莱赫蒂宁R·拉克索宁P·佩尔托拉
Owner UPM-KYMMENE OYJ
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