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Apparatus and method for sample preparation of stripped test piece of solid rocket motor coating sleeve charge column

A solid rocket and engine technology, applied in the field of solid rocket motor coated drug column stripping test piece sample preparation device, can solve the problems of low sample preparation rate and sample preparation efficiency of coated drug column, and potential safety hazards, etc. It achieves the effect of improving the qualified rate of sample preparation, improving the precision and simplifying the operation.

Active Publication Date: 2020-01-31
SHANGHAI AEROSPACE CHEM ENG INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The problem solved by the present invention is that the qualified rate and efficiency of sample preparation of the existing coated powder column are low, and there are potential safety hazards

Method used

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  • Apparatus and method for sample preparation of stripped test piece of solid rocket motor coating sleeve charge column
  • Apparatus and method for sample preparation of stripped test piece of solid rocket motor coating sleeve charge column
  • Apparatus and method for sample preparation of stripped test piece of solid rocket motor coating sleeve charge column

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0037]The distance between the cutting blades of the sample preparation device can be adjusted according to the actual requirements. The adjustment range: (8-12) mm. According to the requirements of the peeling test of the coated grain column, the distance between the blades is adjusted to 10 mm, and the coated grain column is adjusted. In a series of cutting experiments, the width of the sample was measured, and 5 points were measured at different parts of each sample. The results are shown in Table 1 below.

[0038] Table 1 Sample preparation results of the coated cartridge, mm

[0039]

[0040] The results show that the precision of the sample preparation of the powder column is high, all controlled within (10±0.2) mm, and the maximum difference between different parts of the same sample is 0.12 mm, which is far higher than the sample preparation requirement of (10±0.5) mm. It also shows that the cutter can make a good linear cut when it runs along the slide rail. Examp...

example 2

[0041] Using the sample preparation device of the present invention to prepare samples, only one person is required to implement the sample preparation operation. The 6 operators in the group respectively cut 5 batches of samples. The time-consuming conditions are shown in Table 2 below.

[0042] Table 2 Statistical situation of time-consuming sample preparation

[0043]

[0044] A single batch of sample preparation can be completed within 4 minutes, and the sample preparation efficiency is more than double that of manual sample preparation.

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Abstract

The invention discloses sample preparation equipment and method for peel specimens of solid rocket engine coated grain. The sample preparation equipment for peel specimens of solid rocket engine coated grain consists of a base, a clamp component, an incision component and a driving component which are installed upon the base. The grain is fixed by the clamp component and incised by knives of the incision component. The driving component provides clamping force.

Description

technical field [0001] The invention relates to the field of peeling test pieces of a coated sleeve drug column, in particular to a sample preparation device and method for a solid rocket motor coated sleeve drug column peeling test piece. Background technique [0002] The peeling strength of the jacketed grain of the packed solid rocket motor is an important technical index to characterize the interface bonding performance between the propellant grain and the thermal insulation layer. If the interface bonding performance does not meet the design requirements, it will lead to engine failure or even explosion hazard. Therefore, accurate and reliable detection of the peel strength of the product interface is an important prerequisite for judging the quality of its adhesive performance. [0003] According to the relevant test standards or process requirements, before the test, the heat insulation layer or the coating part of the coating column surface must be divided into seve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/28
CPCG01N1/286G01N2001/2873
Inventor 万代红刘永峰沈肖胤蒋建霞吴伟旭程帅峰毛芳
Owner SHANGHAI AEROSPACE CHEM ENG INST