Swelling pressure testing method and device for static rupturing agent

Abstract

The present invention relates to swelling pressure testing method and device for static rupturing agent. The measured static rupturing agent is set inside blast hole with radial rigid constraint and only axial swelling and displacement produced, and the swelling pressure is measured directly with dynamometric ring in the blast hole mouth. The measuring device consists of rigid frame, dynamometric ring, micrometer, blast hole mold and platform elevation controlling system. The blast hole mold and the dynamometric ring are set inside the rigid frame capable of being elevated and in the same symmetrical central axle, and the blast hole mold with blast hole is set on the rigid frame platform. The present invention can obtain intuitive and accurate measurement result.

Description

technical field [0001] The invention relates to a test method and a test device for the expansion pressure of a static cracking agent. Background technique [0002] One of the most important parameters in the research and production testing of expansion performance of static cracking agents is the test of expansion pressure. So far, my country has not announced a unified test method and inflation pressure index. The test method generally adopted by research or production units is to use seamless steel pipes—resistance strain gauges for measurement; in the measurement process, there are mainly the following problems: the calibration of strain gauges is relatively complicated, it is not easy to measure accurately, the readings are not intuitive enough, and the calculation comparison It is cumbersome, greatly affected by ambient temperature, low success rate, inaccurate results, and steel pipes and strain gauges cannot be reused. Therefore, a reusable expansion pressure measur...

AI Technical Summary

Problems solved by technology

The test method generally adopted by research or production units is to use seamless steel pipes—resistance strain gauges for measurement; in the measurement process, there are mainly the following problems: the calibration of strain gauges is relatively complicated, it is not easy to measure accurately, the readings are not intuitive enough, and the calculation comparison It is cumbersome, greatly affected by ambient temperature, low success rate, inaccurate results, and steel pipes and strain gauges cannot be reused. Therefore, a reusable expansion pressure measurement method with convenient measurement, intuitive and accurate readings is needed

There is no report on the measurement of the expansion pressure of the static cracking agent using the blast hole of the force-measuring ring steel mold

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