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Gelation time measuring device and testing method

A technology of gelation time and measuring device, which is applied in the investigation phase/state change and other directions, can solve the problems of inability to automatically test the gelation time, different conditions for ending the timing, and great influence on the test results, so as to improve the measurement efficiency. , The effect of improving the measurement accuracy and high degree of automation

Pending Publication Date: 2019-02-15
JIANGSU HHCK NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Many industries have the parameter of gelation time, such as the coating industry. GT-3 and GT-250 produced on the market according to "GB / T 16995 Determination of gelation time of thermosetting powder coatings at a given temperature" are similar to this The principle of the scheme is different, the conditions for judging the end timing are different, and the gelation time cannot be automatically tested like this scheme
[0004] The existing test method is the hot plate knife method. This method is to heat the heating plate to the required temperature, flatten the sample with a greasy knife, start timing, and scrape off continuously with a greasy knife at the same time. When the sample changes from a fluid state to a solid state Colloidal state, stop timing, the time obtained is the gelation time, the disadvantage of this method is: manual scraping, mainly rely on the hand feeling of the tester to judge the time to stop timing, the timing method is manually pinching the stopwatch, human factors have a greater impact on the test results Big

Method used

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  • Gelation time measuring device and testing method
  • Gelation time measuring device and testing method

Examples

Experimental program
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Embodiment 1

[0026] Embodiment 1, with reference to Figure 1-3 , a gelation time measuring device, comprising a base 1 and a test machine head, a column 9 is arranged behind the base 1, and a lifting mechanism for controlling the vertical movement of the test machine head is provided on the column 9;

[0027] Described test head comprises casing 4 and test head 3, is provided with the main motor that drives test head 3 to rotate in the casing 4, and test head 3 is contained on the output shaft of main motor, and test head 3 is equipped with on the base 1. The matching heating plate 2, the surface roughness of the heating plate 2 and the test head 3 is N10, the hardness is HRC60, and the casing 4 is provided with a control module for detecting the torque change of the main motor rotation to detect the curing degree of the sample;

[0028] The test head 3 is disc-shaped, and the center of the disc-shaped test head 3 is provided with a central rod inserted in the test head connecting rod 17....

Embodiment 2

[0029] Embodiment 2, the gelation time measuring device described in Embodiment 1, the described lifting mechanism includes a fixed seat 15 mounted on the column 9, a traction mechanism is provided between the fixed seat 15 and the bottom of the casing 4, and the fixed seat 15 and the column 9 between the top of the casing 4 is equipped with a spring 14 for resetting the test machine head. 13 is hinged, and the lower end of the traction arm 12 is hinged with a lower triangular block 11, and the lower triangular block 11 is connected with the bearing seat 16 located at the bottom of the casing 4 through the horizontal rotating shaft 10.

Embodiment 3

[0030] Embodiment 3, the gelation time measuring device described in Embodiment 1-2, the handle 6 that drives the horizontal rotating shaft 10 to rotate is provided on the said casing 4;

[0031] The lower hinged end of the traction arm 12 is located on one of the corners of the lower triangular block, the horizontal rotating shaft 10 is installed on the other corner of the lower triangular block, and the upper triangular block is mounted on the fixed seat 15 by a bearing pin.

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Abstract

The invention discloses a gelation time measuring device and a testing method. The gelation time measuring device comprises a base and a testing machine head, wherein a vertical column is arranged behind the base; a lifting mechanism for controlling the testing machine head to move up and down is arranged on the vertical column; the testing machine head comprises a casing and a testing head; a main motor for driving the testing head to rotate is arranged in the casing; a heating plate matched with the testing head is arranged on the base; a control module for detecting the solidification degree of a sample by detecting a rotating torque change of the main motor. By arranging the testing machine head provided with the control module, the gelation time measuring device improves the measuringprecision of the gelation time; by arranging the heating plate and the rotatable testing head, the sample is reacted to be solidified to a gel state step by step, the interference of manmade factorson a testing result is reduced, and the accuracy and the reliability of data are improved; by arranging the lifting mechanism, a height between the testing head and the heating plate can be adjusted,so that the sample can be placed on the heating plate conveniently, and the measuring efficiency is improved.

Description

technical field [0001] The invention relates to a gelation time test method of thermosetting plastics, in particular to a gelation time measuring device and a test method. Background technique [0002] Epoxy molding compound is mainly used for the packaging of electronic components and integrated circuits, and its composition is generally epoxy resin, phenolic resin, inorganic filler, catalyst and other additives. Epoxy molding compound is a kind of thermosetting plastic, the gelation time is an important index in the production process, and the gelation time is also an important reference index in the packaging process of customers. This indicator mainly reflects the curing speed of epoxy molding compound at a specific temperature. [0003] Many industries have the parameter of gelation time, such as the coating industry. GT-3 and GT-250 produced on the market according to "GB / T 16995 Determination of gelation time of thermosetting powder coatings at a given temperature" a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/02
CPCG01N25/02
Inventor 崔亮谭伟蒋小娟李文翔薛建民成兴明张慧刘红杰李兰侠范丹丹段杨杨
Owner JIANGSU HHCK NEW MATERIAL CO LTD
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