Method for detecting performance of capsule material

Abstract

The invention relates to the technical field of capsule materials, and discloses a method for detecting the performance of a capsule material, and the method comprises the following steps: S1, cutting a to-be-detected capsule material to form a plurality of pieces, and splicing the pieces to form a spherical capsule; s2, a plurality of capsule body material sheets are pasted on the spherical capsule body; s3, carrying out a rubbing test on the spherical capsule body obtained in the step S2 by utilizing a rubbing test machine; s4, taking down the rubbed capsule body material sheet on the spherical capsule body, and carrying out a performance test; carrying out appearance inspection on the spherical capsule body, then connecting the spherical capsule body with pressure measurement and control equipment, filling gas into the spherical capsule body, and carrying out air tightness detection; according to the method provided by the invention, the multiple folding and packaging processes of the product obtained by processing the capsule material indoors and outfield can be simulated, so that the use performance of the capsule material can be verified, and a verification system of a domestic capsule material is perfected.

Description

Technical Field

[0001] The invention relates to the technical field of capsule materials, and in particular to a method for detecting performance of capsule materials. Background Art

[0002] The bladder material is a material that can be used to form a bladder structure, such as an aerostat. The performance of the bladder material will directly affect the application efficiency of the aerostat. In recent years, my country has made significant progress in improving the performance of bladder materials, and the gap with foreign countries has gradually narrowed. The basic mechanical properties, process application performance and comprehensive aging performance of bladder materials have reached a technical state comparable to that of imported materials. However, my country's independent research and development started late, and the localization process of bladder materials still has certain problems. It is necessary to more quickly identify problems that cannot be found in traditional performance tests of domestically produced materials, solve the problems of material index system verification effectiveness encountered in the application process of domestically produced bladder materials, and improve verification efficiency and accuracy. Summary of the invention

[0003] The purpose of the present invention is to solve the problem of the effectiveness of the material index system verification encountered in the actual application of the bladder material, and to provide a method for detecting the performance of the bladder material. Through this method, the folding, packaging and other processes experienced by the bladder material used for processing aerostat products in the actual use process are simulated, thereby solving the common technical problem that the verification stage of the existing bladder material cannot truly reflect the processing resistance of the aerostat product in the actual processing stage. This provides a verification basis for the use of domestically produced bladder materials, promotes the localization process of bladder materials, and improves the reliability and safety of domestically produced bladder materials.

[0004] In order to achieve the above object, the present invention provides a method for detecting the performance of a capsule material, the method comprising:

[0005] S1: cutting the capsule material to be tested into several pieces and splicing them into a spherical capsule;

[0006] S2: pasting a plurality of capsule material sheets on the spherical capsule;

[0007] S3: performing a rubbing test on the spherical capsule obtained in step S2 using a rubbing test machine;

[0008] S4: removing the rubbed balloon material sheet from the spherical balloon and conducting a performance test; conducting an appearance inspection on the spherical balloon, and then connecting the spherical balloon to a pressure measurement and control device, filling the spherical balloon with gas and conducting an airtightness test.

[0009] Preferably, the splicing method between two adjacent sheets is butt joint and / or overlap joint;

[0010] Preferably, when butt-jointed, inner heat-sealing cloth is pasted on the inner sides of two adjacent sheets, and first outer heat-sealing cloth is pasted on the outer sides of two adjacent sheets; the total contact width between the inner heat-sealing cloth and the two adjacent sheets is 50-80 mm, and the total contact width between the first outer heat-sealing cloth and the two adjacent sheets is 30-50 mm;

[0011] Preferably, when overlapping, the overlapping width between two adjacent sheets is 30-50 mm, a second outer heat sealing cloth is pasted on the outer sides of the two adjacent sheets, and the total contact width between the second outer heat sealing cloth and the two adjacent sheets is 30-50 mm.

[0012] Preferably, the bladder material sheet is pasted at the middle position of the sheet, and two adjacent bladder material sheets are arranged at least one sheet apart.

[0013] Preferably, in step S3, the temperature condition of the rubbing test is room temperature - 70°C.

[0014] Preferably, in step S3, the conditions of the rubbing test include: a rubbing frequency of 2-15 times / minute, and a rubbing number of 25-100 times.

[0015] Preferably, in step S3, the kneading conditions of the kneading tester include: the two connecting shafts reciprocate in a direction approaching or moving away from each other while rotating;

[0016] Preferably, the distance between the two connecting shafts during the reciprocating movement is 0.8-1.7 m, and the rotation angle of the two connecting shafts is 360°-520°.

[0017] Preferably, in step S4, the performance test items of the bladder material sheet include appearance, shear tensile strength and helium permeability.

[0018] Preferably, in step S4, the appearance inspection of the spherical balloon includes inspecting whether each sheet is delaminated or broken, and inspecting whether the connection portion between two adjacent sheets is delaminated.

[0019] Preferably, in step S4, the process of filling the spherical balloon with gas includes: filling the spherical balloon with helium until the pressure reaches 2000Pa, then pausing the inflation and stabilizing for 20 minutes, and then continuing to fill a certain amount of helium into the spherical balloon. When the inflation is stopped, the helium pressure in the spherical balloon is not higher than 3000Pa.

[0020] Preferably, in step S4, the airtightness detection method is selected from one or more of a helium mass spectrometry method, a foam smearing method and an immersion method.

[0021] Through the above technical scheme, the capsule material to be tested is cut into several pieces and spliced ​​into a spherical capsule, and then the spherical capsule is subjected to a rubbing test using a rubbing test machine, thereby simulating the multiple folding and packaging processes of the product obtained by processing the capsule material indoors and outdoors, and then the performance of the capsule material can be verified, so as to improve the verification system for domestic capsule materials.

[0022] In addition, since multiple capsule material sheets are pasted on the surface of the spherical capsule, the performance of the capsule material itself that has undergone the rubbing test can be conveniently tested. In particular, by pasting multiple capsule material sheets on the spherical capsule, when the rubbing test reaches a certain stage, the capsule material sheets can be sampled for performance testing without damaging the spherical capsule, thereby more fully and conveniently evaluating the performance of the capsule material itself after experiencing different degrees of rubbing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a flow chart of a method for detecting the performance of capsule materials provided by the present invention;

[0024] Figure 2 It is a schematic diagram of butting two adjacent sheets provided by the present invention;

[0025] Figure 3 It is a schematic diagram of overlapping two adjacent sheets provided by the present invention;

[0026] Figure 4 It is a schematic diagram of pasting a capsule material sheet on a spherical capsule provided by the present invention;

[0027] Figure 5 It is a schematic diagram of a rubbing test provided by the present invention.

[0028] Description of Reference Numerals

[0029] 1. Sheet width; 2. Inner heat-sealed cloth; 3. First outer heat-sealed cloth; 4. Second outer heat-sealed cloth; 5. Bladder material sheet. DETAILED DESCRIPTION

[0030] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0031] It should be noted that, although the relevant principles will be mainly explained in the subsequent description mainly by taking the method of detecting the performance of the bladder material used to manufacture the airship as an example, the method provided by the present invention can also be used to detect the performance of the bladder material for manufacturing other target products. By verifying the performance of the target product made of the bladder material during actual use, the raw material manufacturers can be guided to optimize and improve the bladder material, thereby accelerating the iteration of the bladder material.

[0032] In one embodiment of the present invention, the bladder material is used to manufacture an aerostat, such as Figure 1 As shown, the method for detecting the performance of the capsule material comprises the following steps:

[0033] S1: cutting the capsule material to be tested into several pieces and splicing them into a spherical capsule;

[0034] S2: pasting a plurality of capsule material sheets on the spherical capsule;

[0035] S3: performing a rubbing test on the spherical capsule obtained in step S2 using a rubbing test machine;

[0036] S4: removing the rubbed balloon material sheet from the spherical balloon and conducting a performance test; conducting an appearance inspection on the spherical balloon, and then connecting the spherical balloon to a pressure measurement and control device, filling the spherical balloon with gas and conducting an airtightness test.

[0037] In the technical solution provided by the present invention, on the one hand, the capsule material to be tested is cut into several pieces and spliced ​​to form a spherical capsule, and then the spherical capsule is subjected to a rubbing test using a rubbing test machine, thereby simulating the multiple folding and packaging processes of the product obtained by processing the capsule material indoors and outdoors, and thus the performance of the capsule material can be verified to improve the verification system of domestic capsule materials; on the other hand, since a plurality of capsule material sheets are pasted on the surface of the spherical capsule, the performance of the capsule material itself that has undergone the rubbing test can be conveniently tested, in particular, by pasting a plurality of capsule material sheets on the spherical capsule, when the rubbing test reaches a certain stage, the capsule material sheets can be sampled for performance testing without damaging the spherical capsule, and thus the performance of the capsule material itself after experiencing different degrees of rubbing can be more fully and conveniently evaluated.

[0038] It is understandable that the method provided by the present invention can expose in advance the problems that may occur in the use of the capsule material itself and the products processed by it, and can complete the comparison test of multiple capsule materials as soon as possible, and guide the raw material manufacturers to optimize the design of the capsule material and accelerate the iteration of the capsule material. Specifically, the relationship between the number of rubbing times and the performance of the capsule material is explored through the performance test after rubbing, and the leakage point is qualitatively and quantitatively analyzed, which is conducive to promoting the optimization and iteration of the capsule material.

[0039] The method provided by the present invention can also provide a guarantee for the reliable processing of the product, and effectively reduce the risk of equipment use caused by quality problems of the capsule material.

[0040] According to the method provided by the present invention, in order to ensure the smooth progress of the rubbing test, during the process of splicing the sheets to form the spherical capsule, the two ends of the sheets are respectively formed as fixing parts for connecting and fixing to the connecting shaft of the rubbing tester; it can be understood that the fixing parts should be firmly fixed to the connecting shaft of the rubbing tester to ensure that they will not loosen before and after the rubbing test.

[0041] The fixing portion and the connecting shaft of the rubbing tester can be connected and fixed by any suitable connection method. In some embodiments of the present invention, the connection method can be strong rope binding, Velcro bonding or adhesive bonding.

[0042] In the present invention, the capsule material to be tested can be cut into sheets in any appropriate manner, such as by CNC cutting. The size and quantity of the sheets are designed according to the size of the spherical capsule actually required. For example, in a specific embodiment of the present invention, the capsule material to be tested is cut into 12 sheets by CNC cutting, and a spherical capsule with a diameter of 4 meters is made by splicing and heat sealing. In the present invention, by splicing multiple sheets to form a spherical capsule, the use state of the capsule material after being made into a finished product is fully simulated.

[0043] It can be understood that in the present invention, any appropriate method can be used to splice two adjacent sheets to form the spherical capsule. In some embodiments, the splicing method between the two adjacent sheets is butt-jointed and / or overlapped. It can be understood that in the same spherical capsule, the splicing method between the two adjacent sheets is butt-jointed or overlapped.

[0044] Combination Figure 2As shown, in the docking splicing method provided by the present invention, an inner heat sealing cloth 2 is pasted on the inner side of the two adjacent sheets 1, and a first outer heat sealing cloth 3 is pasted on the outer side of the two adjacent sheets 1; it can be understood that if the contact width between the inner heat sealing cloth 2 or the first outer heat sealing cloth 3 and the sheet 1 is too small, the connection effect of the two adjacent sheets 1 will be poor and delamination will easily occur, and too large a contact width will lead to the problem of excessive weight gain of the spherical balloon. Preferably, in some embodiments of the present invention, the total contact width between the inner heat sealing cloth 2 and the two adjacent sheets 1 is 50-80mm, and the total contact width between the first outer heat sealing cloth 3 and the two adjacent sheets 1 is 30-50mm.

[0045] It can be understood that the inner heat sealing cloth 2 should maintain approximately equal contact width with the two adjacent sheets 1, that is, the contact width between the inner heat sealing cloth 2 and each sheet 1 is 25-40mm; similarly, the contact width between the first outer heat sealing cloth 3 and each sheet 1 is 15-25mm.

[0046] Combination Figure 3 As shown, in the overlapping splicing method provided by the present invention, there is an overlapping portion between two adjacent sheets 1, and specifically, the overlapping width between the two adjacent sheets 1 is 30-50mm; in order to ensure the overlapping strength and facilitate operation, the outer sides of the two adjacent sheets 1 are pasted with a second outer heat-sealing cloth 4. Further, in order to ensure the splicing effect, the total contact width between the second outer heat-sealing cloth 4 and the two adjacent sheets 1 is 30-50mm. It can be understood that the second outer heat-sealing cloth 4 should maintain a substantially equal contact width with the two adjacent sheets 1, that is, the contact width between the second outer heat-sealing cloth 4 and each sheet 1 is 15-25mm.

[0047] According to the method provided by the present invention, by pasting the capsule material sheet 5 on the spherical capsule, the performance of the capsule material itself undergoing the rubbing test can be conveniently tested. Figure 4 As shown, the capsule material sheet 5 is pasted in the middle of the sheet 1, and two adjacent capsule material sheets 5 are arranged at least one sheet 1 apart. In this way, the capsule material sheet 5 is prevented from affecting the rubbing test of the spherical capsule as much as possible.

[0048] It should be noted that in the method provided by the present invention, the material type of the capsule material sheet 5 is the same as the material type of the sheet 1, and the heat sealing parameters when the capsule material sheet 5 is connected to the sheet 1 are consistent with the heat sealing parameters between adjacent sheets 1 when making a spherical capsule.

[0049] According to the method provided by the present invention, in step S3, the temperature condition of the rubbing test is room temperature-70° C. It can be understood that the above setting can simulate the temperature of the product in the actual use environment as much as possible, thereby more accurately evaluating the performance of the capsule material in use.

[0050] According to the method provided by the present invention, in step S3, the conditions of the kneading test are determined according to actual conditions. In some embodiments of the present invention, in step S3, the conditions of the kneading test include: a kneading frequency of 2-15 times / minute, and a kneading number of times of 25-100 times.

[0051] In the present invention, in step S3, the kneading conditions of the kneading tester include: the two connecting shafts reciprocate in the direction of approaching or moving away from each other while rotating; Figure 5 As shown, after the two ends of a plurality of sheets 1 are spliced ​​together to form a spherical capsule, they are respectively installed corresponding to the two connecting shafts of the rubbing tester. The two connecting shafts approach each other and rotate in opposite directions respectively. After reaching a preset spacing and a preset angle, the two connecting shafts move away from each other and rotate in opposite directions again, returning to the initial state. At this time, one rubbing is completed, and then the cycle is repeated and reaches a preset number of times.

[0052] Furthermore, in some embodiments of the present invention, the distance between the two connecting shafts during the reciprocating movement is 0.8-1.7 m, and the rotation angle of the two connecting shafts is 360°-520°.

[0053] According to the method provided by the present invention, in step S4, the performance test items of the bladder material sheet 5 include appearance, shear tensile strength and helium permeability.

[0054] According to the method provided by the present invention, in step S4, the appearance inspection of the spherical capsule includes checking whether each sheet is delaminated or broken, and checking whether the connection between two adjacent sheets 1 is delaminated.

[0055] According to the method provided by the present invention, it can be understood that in the process of inflating the spherical balloon, it is easy to explode when the inflation pressure is too high, and it is difficult to detect leakage when the inflation pressure is too low. In some embodiments of the present invention, in step S4, the process of filling the spherical balloon with gas includes: filling the spherical balloon with helium until the pressure is 2000Pa, then suspending the inflation and stabilizing for 20 minutes, and then continuing to fill a certain amount of helium into the spherical balloon. When the inflation is stopped, the helium pressure in the spherical balloon is not higher than 3000Pa. Through the above operation, the air tightness of the spherical balloon after the rubbing test can be effectively detected while ensuring stability.

[0056] It should be noted that, in the present invention, the gas filled into the spherical balloon can be of any suitable type, for example, it can be an inert gas such as nitrogen, argon, etc. Preferably, the gas is helium; since helium is actually filled in the aerostat product, filling it with helium can more accurately simulate the situation of the balloon material in actual use.

[0057] In the present invention, in order to avoid the problem that the temperature of the spherical balloon body increases due to sunlight exposure and then causes explosion, the operation of filling the spherical balloon body with gas through the pressure measuring nozzle installed on the spherical balloon body should be carried out in an environment without direct sunlight.

[0058] In the present invention, the airtightness detection method may be one commonly used in the art. For example, in step S4, the airtightness detection method is selected from one or more of helium mass spectrometry, foam smearing method and immersion method.

[0059] The preferred embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations. However, these simple modifications and combinations should also be regarded as the contents disclosed by the present invention and belong to the protection scope of the present invention.

Claims

1. A method for detecting the performance of capsule materials, characterized in that: The method comprises: S1: cutting the capsule material to be tested into several pieces and splicing them into a spherical capsule; S2: pasting a plurality of capsule material sheets on the spherical capsule; S3: performing a rubbing test on the spherical capsule obtained in step S2 using a rubbing test machine; S4: removing the rubbed balloon material sheet from the spherical balloon and conducting a performance test; conducting an appearance inspection on the spherical balloon, and then connecting the spherical balloon to a pressure measurement and control device, filling the spherical balloon with gas and conducting an airtightness test.

2. The method according to claim 1, characterized in that The splicing method between two adjacent sheets is butt joint and / or overlap joint; Preferably, when butt-jointed, inner heat-sealing cloth is pasted on the inner sides of two adjacent sheets, and first outer heat-sealing cloth is pasted on the outer sides of two adjacent sheets; the total contact width between the inner heat-sealing cloth and the two adjacent sheets is 50-80 mm, and the total contact width between the first outer heat-sealing cloth and the two adjacent sheets is 30-50 mm; Preferably, when overlapping, the overlapping width between two adjacent sheets is 30-50 mm, a second outer heat sealing cloth is pasted on the outer sides of the two adjacent sheets, and the total contact width between the second outer heat sealing cloth and the two adjacent sheets is 30-50 mm.

3. The method according to claim 1, characterized in that The bladder material sheet is pasted in the middle of the sheet, and two adjacent bladder material sheets are arranged at least one sheet apart.

4. The method according to claim 1, characterized in that: In step S3, the temperature condition of the rubbing test is room temperature-70°C.

5. The method according to claim 1, characterized in that In step S3, the conditions of the rubbing test include: a rubbing frequency of 2-15 times / minute and a rubbing number of 25-100 times.

6. The method according to claim 1, characterized in that In step S3, the kneading conditions of the kneading tester include: the two connecting shafts reciprocate in a direction of approaching or moving away from each other while rotating; Preferably, the distance between the two connecting shafts during the reciprocating movement is 0.8-1.7 m, and the rotation angle of the two connecting shafts is 360°-520°.

7. The method according to claim 1, characterized in that In step S4, the performance tests performed on the bladder material sheet include appearance, shear tensile strength and helium permeability.

8. The method according to claim 1, characterized in that In step S4, the appearance inspection of the spherical capsule includes inspecting whether each sheet is delaminated or broken, and inspecting whether the connection between two adjacent sheets is delaminated.

9. The method according to claim 1, characterized in that: In step S4, the process of filling the spherical balloon with gas includes: filling the spherical balloon with helium until the pressure reaches 2000Pa, then pausing the inflation and stabilizing for 20 minutes, and then continuing to fill a certain amount of helium into the spherical balloon. When the inflation is stopped, the helium pressure in the spherical balloon is not higher than 3000Pa.

10. The method according to claim 1, characterized in that In step S4, the airtightness detection method is selected from one or more of a helium mass spectrometry method, a foam smearing method and an immersion method.

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