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Mold for preparing ablation rate specimen and use method thereof

A technology of ablation rate and test pieces, which is applied in the field of molds for preparing ablation rate test pieces, can solve the problems of uneven size of test pieces, poor data stability, and potential safety hazards, so as to improve safety and accuracy and quality, the preparation method is simple and reasonable

Inactive Publication Date: 2019-08-30
江西航天经纬化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current manufacturing mold is relatively simple, and the size of the test piece is not uniform, resulting in poor quality and poor data stability, and the stamping method is mainly used, which has potential safety hazards

Method used

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  • Mold for preparing ablation rate specimen and use method thereof
  • Mold for preparing ablation rate specimen and use method thereof
  • Mold for preparing ablation rate specimen and use method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0031] refer to Figure 1~3 , in an embodiment of the present invention, a mold for preparing ablation rate test specimens, the mold includes male molds 1 on both sides, two male molds 1 are arranged in parallel, and a piece of mold is arranged between the two male molds 1 The female mold 2 and the two ends of the male mold 1 are connected by bolts 3, and a four-sided closed frame is formed by the two male molds 1 and one female mold 2.

[0032] The middle part of the female mold 2 is provided with several test piece holes 4, the middle part of the male mold 1 is provided with several protrusions 5, and the four corners of the male mold 1 and the female mold 2 are provided with bolts that cooperate with the bolts 3. Hole 6.

Embodiment 2

[0034] In another embodiment of the present invention, the difference between this embodiment and the above-mentioned embodiment lies in that the two side edges of the male mold 1 are provided with relief grooves 7 .

[0035] A method for using a mold for preparing an ablation rate test piece, comprising the steps of:

[0036] 1) Cut the test piece to be made into a shape with a size of φ30mm×10mm, put it into the female mold 2, and there are 6 sets of test pieces in total;

[0037] 2) Place the male mold 1 on the female mold 2 to ensure that the male and female molds can be well matched;

[0038] 3) Assemble and tighten with bolt 3;

[0039] 4) Put the assembled mold into the vulcanization box for vulcanization;

[0040] 5) After the vulcanization is over, take out the test piece and observe the outer surface of the test piece. The bonding between the test pieces is firm and there is no obvious delamination.

[0041] In the present invention, the steps of preparing the tes...

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Abstract

The invention relates to the technical field of the mold, and discloses a mold for preparing an ablation rate specimen and a use method thereof. The mold comprises male dies located at two sides, wherein the male dies are arranged in parallel, and a female mold is arranged between two male dies. The invention further discloses a use method thereof, the method comprises the following steps: tailoring the specimen needing to manufacture into the shapes in size of phi 30mm*10mm, placing six groups of specimens in a female mold; placing the male molds on the female molds to guarantee that the female molds and the male molds can be well matched; performing assembling and tightening by using bolts; placing the assembled mold in a vulcanization box to perform vulcanization; taking out the specimen after the vulcanization, and observing an outer surface of the specimen. The mold disclosed by the invention solves the problem that the size of the specimen is inconsistent due to non-uniform stress in the stamping process when preparing the traditional specimen, the preparation method is simpler and more reasonable, the manual work and the uncontrollable elements are reduced, the prepared specimen is more unified and representative, and the specimen accuracy and quality are improved.

Description

technical field [0001] The invention relates to the technical field of molds, in particular to a mold for preparing ablation rate test specimens and a method for using the same. Background technique [0002] Ablation performance is one of the most important technical indicators of the thermal insulation layer in solid rocket motors, and it is an important parameter to characterize the anti-ablation ability of the thermal insulation layer under the action of high temperature, high pressure and high velocity gas. The ablation rate of the heat insulation layer is low, which can reduce the thickness of the heat insulation layer and improve the engine mass ratio. Usually adopt the method of synchronous production time to test. The key to the reliability of ablation performance data lies in the standardization of specimen fabrication. [0003] The current manufacturing mold is relatively simple, and the size of the test piece is not uniform, resulting in poor quality and poor da...

Claims

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Application Information

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IPC IPC(8): G01N1/36G01N1/28
CPCG01N1/36G01N1/28G01N1/286G01N2001/366G01N2001/368
Inventor 彭西来卢文强张雪敏
Owner 江西航天经纬化工有限公司
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