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A method for testing the colloidal strength of fumed silica

A fumed silica, strength testing technology, applied in strength characteristics, measuring devices, instruments, etc., can solve the problems of not meeting the higher requirements of colloidal strength performance, not being able to quickly measure the strength, and time-consuming, saving labor and time. The effect of manual measurement of time and convenient and quick testing

Active Publication Date: 2015-08-05
CHAOWEI POWER CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Not only the measurement accuracy is low, and the higher requirements for the colloid strength performance of the battery colloid technical standard cannot be met, but also the operation process takes manpower and time, and its strength cannot be quickly measured.

Method used

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  • A method for testing the colloidal strength of fumed silica

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Embodiment Construction

[0012] figure 1 The specific structure of the gas-phase silica colloidal strength tester is shown, which includes an automatic ball drop device, and the automatic ball drop device includes a steel ball adsorption device with a scale rod 2 and is arranged on the tape scale rod for absorbing steel balls 4. A graduated cylinder 3 containing the colloid to be measured is arranged directly below. The automatic ball drop device also includes an automatic ball drop box 8, and the bottom of the tape bar and measuring cylinder are placed in the automatic ball drop box. The steel ball adsorption device includes a connecting piece 9 with a scale rod arranged on a scale rod, the end of the connecting piece with a scale rod is provided with an adsorption coil 5, and the adsorption coil is connected with the power supply 1 of the automatic ball drop device, and the power supply of the automatic ball drop device A control switch 6 is provided to control the adsorption or release of the stee...

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Abstract

The invention discloses a method for testing strength of gas phase silicon dioxide colloid. The method comprises the following steps of: firstly preparing colloid to be tested, wherein the colloid to be tested is prepared by a sulfuric acid solution with mass percent of 36% and a silicon dioxide solution with mass percent of 6%; then, adsorbing a steel ball through a steel ball adsorbing device, and meanwhile, placing a measuring cylinder right below the steel ball, and filling the colloid to be tested to the horizontal scale line in the measuring cylinder; finally, fixing the steel ball at a position 25cm away from the liquid level of the colloid to be tested in the measuring cylinder, releasing the steel ball through the steel ball adsorbing device, the steel ball freely drops into the colloid to be tested, and measuring the dropping depth of the steel ball to obtain the colloid strength. The method disclosed by the invention can be not only used for conveniently and quickly testing the colloid strength, but also testing and comparing the strength performance of different colloids and omitting the manual measurement time in the testing process.

Description

technical field [0001] The invention relates to the field of lead-acid batteries, in particular to an automatic test method for testing the strength of gas-phase silica colloid. Background technique [0002] At present, there are many deficiencies in the falling ball device for measuring gas-phase silica colloidal solution in the battery industry, mainly requiring testers to follow the whole process and operate manually. Not only the measurement accuracy is low, and the higher requirements of the battery colloid technical standard for colloid strength performance cannot be met, but also the operation process takes manpower and time, and its strength cannot be quickly measured. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a method for testing the strength of gas-phase silica colloid, which has high measurement accuracy, is convenient to operate, and saves time and effort. [0004] In order to solve the above-m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/303
Inventor 周明明吴春江潘仕娟
Owner CHAOWEI POWER CO LTD
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