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Method and device for impregnating carbon fiber tows

A technology of carbon fiber tow and dipping device is applied in the field of carbon fiber tow, which can solve the problems of not reflecting the real value of the sample, prone to more pores in the cross section of the sample strip, affecting the accuracy of the test results, etc.

Pending Publication Date: 2020-03-13
兰州蓝星纤维有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The resin used for dipping is currently mostly epoxy resin and acid anhydride curing agent, usually equipped with an accelerator, and a diluent is added at the same time, and the temperature is raised in one or two steps to cure. With the increase of temperature and the progress of the reaction process, After curing, the cross-section of the sample strip tends to have more pores, which affects the accuracy of the test results. The multifilament test results cannot reflect the true value of the sample, and cannot effectively guide production

Method used

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  • Method and device for impregnating carbon fiber tows
  • Method and device for impregnating carbon fiber tows
  • Method and device for impregnating carbon fiber tows

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Embodiment Construction

[0042] like figure 1 As shown, the invention provides a kind of dipping method of carbon fiber tow, comprising:

[0043] S1. In the glue box, the carbon fiber tow is unfolded by an unwinding roller, and the soaking time of the carbon fiber tow in the glue box reaches a preset value or more;

[0044] The preset value is 10s to 15s, preferably 12s. In order to make the immersion time of the carbon fiber tow in the glue box reach the preset value, the glue box of the corresponding length can be selected according to the speed of the tow winding frame and the preset value. More specifically, the tow winding frame is driven by a motor Rotate, its rotational speed is known, this rotational speed is converted into the traveling speed of tow and then multiplied by preset value and just can obtain the length of required glue box. In an embodiment of the present invention, the glue in the glue box is also kept at a preset temperature by means of a heat preservation device, and the pre...

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Abstract

The invention provides a method and device for impregnating carbon fiber tows; the method comprises the steps of: S1, unfolding carbon fiber tows in a glue box through unfolding rollers, and soaking the carbon fiber tows in the glue box to for more than a preset value; S2, concentrating the carbon fiber tows soaked with a glue through a concentration roller; S3, extruding the concentrated carbon fiber tows soaked with the glue to remove the excess glue; and S4, performing sliding extrusion on the extruded carbon fiber tows, and winding the extruded carbon fiber tows on a tow winding frame. Thedevice comprises a frame body, and a beam fixing frame, at least two first tow unfolding rollers, a glue box holding platform, a glue box, a first concentration roller, a glue extruding mechanism anda sliding extruding mechanism which are fixed on the frame body. According to the invention, the strength value of a sample can be increased, and CV (circulation volume) value of the result of samplemeasuring can be reduced.

Description

technical field [0001] The invention relates to the technical field of carbon fiber tow, in particular to a method for dipping carbon fiber tow and a dipping device thereof. Background technique [0002] The quality of the sample strip is directly related to whether the result can accurately reflect the real mechanical properties of the sample, and the dipping and curing of the sample are the key to the preparation of the sample strip. [0003] The resin used for dipping is currently mostly epoxy resin and acid anhydride curing agent, usually equipped with an accelerator, and a diluent is added at the same time, and the temperature is raised in one or two steps to cure. With the increase of temperature and the progress of the reaction process, After curing, the cross-section of the sample strip tends to have more pores, which affects the accuracy of the test results. The multifilament test results cannot reflect the true value of the sample and cannot effectively guide produ...

Claims

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Application Information

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IPC IPC(8): D06B3/02D06B23/04D06B23/20D06B15/02D06B15/00
Inventor 王斐史蒂夫·阿莫斯严华
Owner 兰州蓝星纤维有限公司
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