Mold and method for preparing artificial rock core with non-penetrating holes

Abstract

The invention discloses a mold and a method for preparing an artificial rock core with non-penetrating holes. The mold includes a test piece indenter, a core valve, a base and a hoop; the core valves are aligned to form a hollow cylindrical inner cavity; The clamp is adapted to the outside of the core valve; the base is provided with a base hole, and the base hole is adapted to the outside of the core valve; the test piece indenter is adapted to the inner cavity of the cylinder, and the test piece indenter is A scale is provided, and a threaded hole is provided at the center of one end surface of the test piece indenter, and a flat nut and a hole post are matched with the threaded hole, and one end of the flat head nut and the hole post is provided with a thread matching the threaded hole. During the preparation, the material is weighed twice to determine the weight of the material required for a single test piece, and the scale on the test piece indenter is used to press it to an accurate size, so that the density and size of the prepared test piece are relatively uniform.

Description

technical field [0001] The invention relates to a mold, in particular to a mold and a manufacturing method for a cylindrical standard test piece. Background technique [0002] The mechanical performance parameters of materials are the basic data that must be provided for the development of physical simulation research; in addition, rock mechanical performance parameter tests are also required in the process of material research and development. Therefore, it is particularly important to make standard specimens quickly and easily to test the mechanical performance parameters of materials or to study the fracture seepage characteristics of specimens. [0003] In the manual production of standard test pieces, there are three deficiencies in the following three aspects: First, when using a pressurizing device to compact the test piece, the compaction is often terminated when the pressure is constant at a certain value for a period of time, and the uniform size of the test piece ...

AI Technical Summary

Problems solved by technology

[0003] In the manual production of standard test pieces, there are three deficiencies in the following three aspects: First, when using a pressurizing device to compact the test piece, the compaction is often terminated when the pressure is constant at a certain value for a period of time, and the uniform size of the test piece cannot be guaranteed. ; Second: The configured material is poured into the abrasive tool without secondary weighing, which cannot guarantee the same density of the produced test piece; third, the common artificial core test piece has a single function of the mold, and cannot be made with holes (non-penetrating) Core specimen

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