Thermal environment-based composite material-metal hybrid connector fatigue test pre-processing device

A pretreatment device and composite material technology, applied in the direction of applying stable tension/pressure to test the strength of materials, etc., can solve the problems of complex operation, low work efficiency, time-consuming and laborious, etc.

Inactive Publication Date: 2019-05-21
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Manual operation is not only time-consuming and labor-intensive, but also due to the different technical proficiency of workers or the influence of other human factors, it will inevitably cause waste of items, and the processing effect is not ideal, so the work efficiency is low through manual processing
I

Method used

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  • Thermal environment-based composite material-metal hybrid connector fatigue test pre-processing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] Manufacture push pin 3-7 of the present invention according to the following steps, and by mass percentage:

[0073] Step 1: Add 1% of 2-methyl-undecanol in the proportioning components to the batch reactor according to the mass percentage, and add 5% ultrapure water at the same time, start the mixer in the batch reactor, and set the speed 1rpm;

[0074] Step 2: After the batch reactor runs for 5 minutes, add 3% modified auxiliary additive and 1,1'-(1-methylethylene)bis[4-(2-propenyloxy)]benzene 6 %, start the steam seal steam decompression heater in the batch reactor, raise the temperature to 3°C, add 9% of coagulation accelerator and 2% of iron nanoparticles, stir evenly in the batch reactor, and obtain the S component homogenate;

[0075] Step 3: Take 4% of the coagulation-promoting catalyst in the proportioning component according to the mass percentage, mix and stir with the S component homogenate, start the steam seal steam decompression heater in the batch reac...

Embodiment 2

[0077] Manufacture push pin 3-7 of the present invention according to the following steps, and by mass percentage:

[0078] Step 1: Add 87% of 2-methyl-undecanol in the proportioning components into the batch reactor according to the mass percentage, and add 86% of ultrapure water at the same time, start the mixer in the batch reactor, and set the speed 87rpm;

[0079] Step 2: After the batch reactor has been running for 86 minutes, add 28% of modified additives and 1,1'-(1-methylethylene)bis[4-(2-propenyloxy)]benzene 38 %, start the steam seal steam decompression heater in the batch reactor, raise the temperature to 78°C, add 29% of coagulation accelerator and 95% of iron nanoparticles, stir evenly in the batch reactor, and obtain the S component homogenate;

[0080] Step 3: Weigh 20% of the coagulation-promoting catalyst in the proportioning component according to the mass percentage, mix and stir with the S component homogenate, start the steam seal steam decompression he...

Embodiment 3

[0082] The use effects of the push pins 3-7 prepared in Examples 1-2 and the same parts obtained in the comparative example were compared. The high-speed heat distortion temperature, extrusion strength, number of fractures per thousand hours, and wear rate of the two materials were counted, and the results are shown in Table 1.

[0083]

[0084] As can be seen from Table 1, push pin 3-7 of the present invention, its above-mentioned performance index is all better than the product that prior art produces.

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PUM

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Abstract

The invention discloses a thermal environment-based composite material-metal hybrid connector fatigue test pre-processing device. The device comprises a push rod, a pushing device shell, a spring base, a pushing device locking nail, a locking nail middle shaft, a middle shaft fixing plate, a spring stabilizing upright column, and a pushing device spring; the pushing device spring is located insidethe pushing device housing; the upper portion of the pushing device spring is provided with the push rod; the lower portion of the pushing device spring is provided with the spring base; the pushingdevice spring is fixedly connected with the push rod and the spring base; the spring stabilizing upright column is disposed at the lower part of the interior of the pushing device spring; the spring stabilizing upright column is fixedly connected with the spring base; and the middle shaft fixing plate is fixedly connected with the lower portion of the spring base. The thermal environment-based composite material-metal hybrid connector fatigue test pre-processing device of the invention has the advantages of simple structure, convenient operation, high automation degree, good pre-processing effect and high work efficiency. With the thermal environment-based composite material-metal hybrid connector fatigue test pre-processing device adopted, defects such as cumbersome manual work and inconvenient use can be eliminated.

Description

technical field [0001] The invention belongs to the field of aviation test equipment, and in particular relates to a fatigue test pretreatment device for composite material-metal hybrid connectors in a thermal environment. Background technique [0002] At present, many of the pretreatment processes of the passenger aircraft new material experimental platform currently in use in China are carried out manually. Manual operation is not only time-consuming and labor-intensive, but also due to the different technical proficiency of workers or the influence of other human factors, it will inevitably lead to waste of items, and the processing effect is not ideal, so the work efficiency is low when processing manually. In addition, the existing passenger aircraft new material experimental platform pretreatment system has simple structure design, complex operation, and low degree of automation. Therefore, it is necessary to design a new type of pretreatment equipment for passenger ai...

Claims

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Application Information

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IPC IPC(8): G01N3/12
Inventor 吴红兰董柳杉胡挺吴振芳
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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