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Post-processing method for improving 3D printing rock mass performance

A technology of 3D printing and rock printing, applied in 3D object support structures, metal processing equipment, manufacturing tools, etc., can solve the problem of low fluidity of epoxy resin, and achieve the effect of eliminating the defect of delamination

Pending Publication Date: 2022-04-01
CHANGAN UNIV
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  • Claims
  • Application Information

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Problems solved by technology

However, due to the low fluidity of epoxy resin and the initial curing in a short period of time, how to use epoxy resin to post-process 3D printed rock mass is a key issue

Method used

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  • Post-processing method for improving 3D printing rock mass performance
  • Post-processing method for improving 3D printing rock mass performance
  • Post-processing method for improving 3D printing rock mass performance

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Embodiment Construction

[0034] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. The test methods for which specific conditions are not indicated in the following examples are usually in accordance with conventional conditions, or in accordance with the conditions suggested by each manufacturer.

[0035] The invention provides a post-processing method for improving the performance of 3D printed rock mass, comprising the following steps:

[0036] Step 1, defoaming the modified epoxy resin solution to obtain the defoamed modified epoxy resin solution, and putting the defoamed modified epoxy resin solution into a sealed bucket to pump air;

[0037] Specifically, the modified epoxy ...

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Abstract

The invention belongs to the technical field of geotechnical engineering, and particularly relates to a post-processing method for improving the performance of a 3D printing rock mass. Comprising the following steps: step 1, defoaming a modified epoxy resin solution to obtain a defoamed modified epoxy resin solution, and putting the defoamed modified epoxy resin solution into a sealing barrel for air exhaust; step 2, weighing a 3D printing rock mass sample, drying the 3D printing rock mass sample at a constant temperature to obtain a dried 3D printing rock mass sample, adding the dried 3D printing rock mass sample into a sealing barrel, and immersing the dried 3D printing rock mass sample in the defoamed modified epoxy resin solution to obtain a first mixture; and step 3, sequentially vacuumizing, standing and drying the first mixture to obtain the improved 3D printing rock mass sample. The 3D printing rock mass sample with various mechanical properties highly similar to those of a natural rock mass is manufactured, the result reliability of the 3D printing rock mass replacing the natural rock mass for an indoor test is improved, and a new method is provided for manually restoring the natural rock mass.

Description

technical field [0001] The invention belongs to the technical field of geotechnical engineering, and in particular relates to a post-processing method for improving the performance of 3D printed rock mass. Background technique [0002] Transparent 3D printing technology has been proved to be a powerful method for the preparation of samples with complex structures. This technology has attracted widespread attention and application in many fields, and its advantages have been applied in the field of fractured rock mass. 3D printing technology can be used to quickly print rock mass samples with internal defects, and can ensure a high degree of consistency between samples, which solves the problem of micro-cracks in natural rocks when making prefabricated fissures, low precision of prefabricated fissures, and prefabricated fissures. Make difficult questions. [0003] Different from the pressing, forging, casting and other methods used in traditional molding technology, the prin...

Claims

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Application Information

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IPC IPC(8): B29C64/379B29C64/141B33Y40/20B33Y10/00
Inventor 田威余宸王肖辉高晋峰郭健云伟
Owner CHANGAN UNIV
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