A method for preparing a transmissive laser micro-propelled thin-film target strip and its manufacturing equipment

A micro-propulsion and transmissive technology, which is applied to the device and coating of the surface coating liquid, which can solve the problems such as difficult to make target tape

Active Publication Date: 2014-10-29
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The transmissive target material (target tape) is composed of a substrate and an ablation layer. The ablation layer and the substrate must be firmly bonded. In order to ensure the service life of the thruster, the target material must have a certain length (tens of centimeters to hundreds of meters) , width (several centimeters), thickness (several micrometers to hundreds of micrometers) and deflection (can be wound on a roller), but the vacuum coating, vacuum sputtering, solution method and other methods commonly used to make the target material can only do a few at most. It is difficult to make a target strip of tens of meters long that can meet practical applications with a target strip of ten centimeters long

Method used

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  • A method for preparing a transmissive laser micro-propelled thin-film target strip and its manufacturing equipment
  • A method for preparing a transmissive laser micro-propelled thin-film target strip and its manufacturing equipment
  • A method for preparing a transmissive laser micro-propelled thin-film target strip and its manufacturing equipment

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] Embodiment 1 equipment

[0066] like figure 2 , 3 Shown, a kind of equipment for making target material for laser micro-propelling, it comprises:

[0067] Driving wheel 1, driven wheel 2, one end of the base film 7 is wound on the driven wheel 2, and the other end is connected on the driving wheel 1, and the driving wheel 1 drives the driven wheel 2 to rotate;

[0068] The heating system 3 is arranged between the driving wheel 1 and the driven wheel 2, and heats the base film 7;

[0069] The feeding device 4 is arranged between the heating system 3 and the driven wheel 2 to add ablation layer material to the base film 7 .

[0070] The driving wheel 1 and the driven wheel 2 are respectively placed on a support provided with a rotating shaft, and the support is a fixed support. The feeding device 4 selected by the present invention is a funnel, and the feeding device is also provided with a screw switch.

[0071] Wherein, the heating system 3 includes a heating barr...

Embodiment 2

[0088] The preparation of embodiment 2 target bands

[0089] Prepare ablative material in the following proportions:

[0090] 80 energy supply materials,

[0091] 20 parts of additives.

[0092] (1) Prepare energy supply materials and additives according to the above proportions, and dissolve them in solvents respectively to obtain energy supply material solutions and additive solutions;

[0093] Among them, the energy supply material: 4 grams of single-base drug (97% nitrocellulose content) dissolved in a mixture of 55 milliliters of acetone and 3.6 milliliters of water, and stirred evenly with a stirrer after standing for 24 hours.

[0094] Additive: 1 gram of nanocarbon dissolved in 5ml of acetone.

[0095](2) Mix the mixed solution obtained in step (1), and after stirring for 15 minutes, add acetone to make the mixed solution reach a viscosity of 17s (tested with 4 cups), and stir evenly to obtain a transmission target ablation material mixed solution

[0096] Use the ...

Embodiment 3

[0103] The preparation of embodiment 3 target bands

[0104] Prepare ablative material in the following proportions:

[0105] 60 energy supply materials,

[0106] Improve bonding material 35 parts,

[0107] Additives 5 parts.

[0108] (1) Prepare the energy-supplying material, cohesion-improving material and additives according to the above proportions, and dissolve them in a solvent respectively to obtain the energy-supplying material solution, the cohesion-improving material solution and the additive solution;

[0109] Among them, the energy-supplying material: 8 grams of the single-base drug was dissolved in 120 milliliters of ethyl acetate, and stirred evenly with a stirrer after standing for 24 hours.

[0110] Adhesion-improving material: 4.6 g of HTPB was dissolved in 10 ml of ethyl acetate.

[0111] Additives: 0.7 g nanocarbon dissolved in 5 ml ethyl acetate, 0.2 ml hexamethylene diisocyanate (HDI) dissolved in 2 ml ethyl acetate and one drop (0.02 ml) of dibutyltin...

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Abstract

The invention provides a transmission-type laser micro propulsion thin film target belt manufacturing method and manufacturing equipment of the transmission-type laser micro propulsion thin film target belt manufacturing method. A target belt which can meet test and use requirements of a transmission-type laser micro thruster can be machined. With transmission-type laser micro propulsion thin film target belt manufacturing method, a transmission-type target belt which can meet test and use requirements can be machined. The target belt is good in uniformity and the problem that orange peel, needle holes and the like are likely to occur in a conventional method is solved. The manufacturing equipment are more likely to manufacture even long target belts and can improve efficiency of producing transmission-type target belts. A manufactured ablation layer is even and manufacture of the long target belts is easy and feasible. The manufacturing equipment is easy to build up and uses existing industrial raw materials for assembly, cost is low, use is convenient, machining efficiency is high and usage can be repeated. A heating system can keep a temperature difference to be stable by simultaneous heating of upper and lower portions. The manufactured target belt is even, smoothness of the surface of the manufactured target belt is high and action stability of the micro thruster can be effectively ensured.

Description

technical field [0001] The invention belongs to the technical field of laser propulsion, and in particular relates to a preparation method and equipment for a transmissive laser micro-propelled film target tape. Background technique [0002] Laser micro-propulsion technology can realize the attitude control and orbit maintenance of small satellites. It has the advantages of small impulse bit, light system weight, wide adjustable range of thrust, and no-nozzle structure. It has an irreplaceable position in the field of space micro-propulsion. Due to the weight and energy limitations of small satellites, a smaller power laser (≥1W) must be used. The wavelength emitted by the laser is between 920-980nm, and the pulse time is 100μs-200ms. The long pulse time limits the target must be Polymer material with low thermal conductivity. The working mode of the laser micro thruster mostly adopts the transmission mode. The laser penetrates the base layer with a high ablation threshold ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05D7/04B05C9/08
Inventor 马宏昊焦龙蔡建张兴华林谋金沈兆武李龙
Owner UNIV OF SCI & TECH OF CHINA
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