Simple device for testing firmness of getter and use method of simple device
By designing a simple device including getter fixing components, parabolic pipes, contact tables and support frames, the problems of expensive equipment, long testing cycles and single testing capabilities in the prior art are solved, and low-cost, fast and accurate getter firmness testing is achieved to meet the testing needs of multiple scenarios.
Patent Information
- Application Number
- CN202411859114.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-03-25
AI Technical Summary
When testing the firmness of getters, the equipment is expensive, the test cycle is long, and the testing capability is single, which cannot meet the industry's needs for low-cost, rapid testing and multiple testing capabilities.
A simple device is designed including getter fixing assembly, parabolic duct, contact table and support frame, which can simulate impact vibration to test the firmness of getter.
It achieves low-cost, fast and accurate testing of the firmness performance of getter under impact vibration, meets the testing needs of multiple scenarios, and provides basic data for getter performance characterization and new product development.
Smart Images
Figure CN119688576A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of vacuum electronic devices, and in particular to a simple device for testing the firmness of a getter and a method for using the same. Background Art
[0002] Getters are mainly used in the vacuum field. They play the role of eliminating vacuum residual gas and maintaining vacuum degree in vacuum devices, thereby extending device life and reducing noise.
[0003] During use, the getter generally needs to be activated by heating in a vacuum, and then absorbs the residual gas in the vacuum environment through physical and chemical reactions.
[0004] At present, getters are increasingly being used in the aerospace field and the military weapons industry (such as missiles). These application fields have extremely high requirements for the firmness of getters, and usually use expensive impact vibration tables to simulate usage scenarios to test whether the getters are strong enough to be used in these environments. This test result is relatively accurate, but the equipment is expensive, the test cycle is long, and the test capability is single. The industry urgently needs a low-cost, fast-testing, multi-testing, and accurate test method to test the firmness performance of getters in high-demand use environments, and provide data support for getter performance characterization and new product development. Summary of the invention
[0005] The invention discloses a simple device for testing the firmness of a getter and a method for using the same, aiming to solve the problems of expensive equipment, long test cycle and single test capability in a method for testing the firmness of a getter by using impact vibration simulation.
[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions: The present invention provides a simple device for testing the firmness of a getter, comprising: a getter fixing assembly for fixing a getter as a test sample; The parabolic pipe is composed of several vertical square iron pipes and is used for changing and assembling according to the test requirements; The contact table, placed below the parabolic tube, is used to measure the impact effect on the test specimen; The support frames are arranged at the four corners of the parabolic pipe and are used to fix the parabolic pipe.
[0007] Furthermore, The getter fixing assembly comprises a mounting groove, an upper fixing seat, a lower fixing seat and a fastening screw; Wherein, the mounting groove is fixed between the upper fixing seat and the lower fixing seat by fastening screws and is used for installing the getter.
[0008] Furthermore, the mounting grooves include three types: a cylindrical mounting groove, an annular mounting groove, and a ring plus center column mounting groove. The three types have the same outer edge dimensions and can be replaced at any time.
[0009] Furthermore, the parabolic pipe is composed of no less than 40 square iron sheets with a length of 20 cm and a width of 20 cm, which are assembled with rivets to form a rectangular parabolic pipe with a length of 20 cm, a width of 20 cm and a height of no less than 2 m; The parabolic pipe is erected on the ground with a gap of 20 cm from the ground, and the four corners are fixed with support frames and ballasts.
[0010] Furthermore, the contact platform is a smooth iron block with a length and width of 20 cm and a thickness of not less than 5 cm and not more than 10 cm.
[0011] Furthermore, it also includes a smooth block with a length and width of 10 cm and a thickness of not less than 5 cm and not more than 10 cm, which does not serve as a contact platform; When the getter fixing assembly is placed on the contact table, a smooth iron block that does not serve as a contact table is dropped from a height required for the test to hit the getter fixing assembly.
[0012] Furthermore, a rotating shaft is installed outside the parabolic tube, and the parabolic tube can rotate around the rotating shaft, so as to adjust the position or angle of the parabolic tube after completing a test to prepare for the next test.
[0013] A method for using a simple device for testing the firmness of a getter comprises the following specific steps: S1: Install the getter in the getter fixing assembly to form a test sample; S2: Place the test sample on an electronic balance and weigh it; S3: Assemble the parabolic tube and the contact table into a test bench according to experimental requirements; S4: Drop the test sample from the parabolic tube, take it out after it falls on the contact table, observe the state of the getter, and obtain the test result.
[0014] The beneficial effects of the present invention are: simple and effective, easy to operate, can accurately reflect the firmness performance of the getter under impact vibration at low cost, can meet the testing requirements of various scenarios, and provide valuable basic data for getter performance characterization and new product development. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 A schematic structural diagram of a simple device for testing the firmness of a getter provided by the present invention.
[0016] Figure 2 A schematic diagram of the structure of the fixed component.
[0017] Figure 3A schematic flow chart of a method for using a simple device for testing the firmness of a getter provided by the present invention.
[0018] Explanation of the reference numerals: 1. Getter fixing assembly; 2. Parabolic duct; 3. Contact table; 4. Support frame; 11. Mounting groove; 12. Upper fixing seat; 13. Lower fixing seat; 14. Fastening screw; 111. Cylindrical mounting groove; 112. Ring-shaped mounting groove; 113. Ring plus center column-shaped mounting groove. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0020] Example 1
[0021] like Figure 1 and 2 As shown, this embodiment provides a simple device for testing the firmness of a getter, comprising: a getter fixing assembly 1, used to fix the getter as a test sample; a parabolic pipe 2, composed of a plurality of vertical square iron pipes, used to be changed and assembled according to test requirements; a contact table 3, made of steel, placed under the parabolic pipe 2, used to measure the impact effect of the test sample; a support frame 4, arranged at the four corners of the parabolic pipe 2, used to fix the parabolic pipe 2.
[0022] Specifically, the getter fixing assembly 1 includes a mounting groove 11, an upper fixing seat 12, a lower fixing seat 13 and a fastening screw 14; wherein the mounting groove 11 is fixed between the upper fixing seat 12 and the lower fixing seat 13 by the fastening screw 14, and is used to install the getter; the mounting groove 11 includes three types: a cylindrical mounting groove 111, an annular mounting groove 112, and an annular plus center column mounting groove 113, and the three types have the same outer edge dimensions and can be replaced at any time; the parabolic pipe 2 is composed of no less than 40 square iron sheets with a length of 20 cm and a width of 20 cm, which are combined with rivets to form a rectangular parabolic pipe with a length and width of 20 cm and a height of not less than 2m; the parabolic pipe 2 is erected on the ground, leaving a gap of 20 cm from the ground, and the four corners are fixed with a support frame 4 and a ballast; the contact table 3 is a smooth iron block with a length and width of 20 cm and a thickness of not less than 5 cm and not more than 10 cm.
[0023] The assembly method of this embodiment can also be changed according to the test requirements. For example, a rotating shaft is installed outside the parabolic tube 2, and the parabolic tube 2 can rotate around the rotating shaft. After completing a test, the position or angle of the parabolic tube 2 can be adjusted to prepare for the next test.
[0024] like Figure 3As shown, this embodiment also provides a method for using a simple device for testing the firmness of a getter, comprising the following specific steps: S1: Install the getter in the getter fixing assembly 1 to form a test sample; S2: Place the test sample on an electronic balance, weigh it, record the weight of the test sample, and calculate the corresponding impact vibration intensity; S3: Assemble the parabolic tube 2 and the contact table 3 into a test table according to experimental requirements; S4: Drop the test sample from the parabolic pipe 2, take it out after it falls on the contact table 3, observe the state of the getter, and obtain the test result.
[0025] Example 2
[0026] Based on Example 1, this embodiment also provides another method for using a simple device for testing the firmness of the getter, prepare two smooth iron blocks, one of which is 20 cm long and wide, and not less than 5 cm and not more than 10 cm thick, as the contact platform 3, and the other is 10 cm long and wide, and not less than 5 cm and not more than 10 cm thick, for standby use.
[0027] Weigh the smooth iron block that does not serve as a contact platform on a balance, record the weight, and calculate the corresponding impact vibration intensity; Place the getter fixing assembly 1 on the contact platform 3, drop a smooth iron block that does not serve as the contact platform 3 from the height required for the test, and after the iron block hits the getter fixing assembly 1, observe the getter state and record the test results.
[0028] Example 3
[0029] This embodiment is the third embodiment of the present invention. This embodiment is different from the first embodiment in that it provides a simple device for testing the firmness of the getter and a verification test of its use method, and verifies and explains the technical effects used in this method.
[0030] This embodiment uses a getter product commonly found in the market, which is cylindrical in shape, with a diameter of about 2 mm and a length of about 10 mm, as sample 1. According to the method of Example 1, the firmness of the getter product under impact and vibration conditions is tested. Sample 1 is tested according to the following steps: A cylindrical mounting groove 111 is made, and the getter is welded and fixed in the mounting groove 11; the mounting groove 11 and the upper fixing seat 12 and the lower fixing seat 13 are combined together with the fastening screws 14 to complete the installation of the getter fixing assembly 1; the parabolic duct 2 is assembled according to the method of Example 1, and the contact table 3 is prepared; the installed getter fixing assembly 1 is weighed on a balance as a test sample, the weight of the test sample is recorded, and the corresponding impact vibration intensity is calculated.
[0031] The sample 1 is dropped from 0.5m, 1m and 2m respectively. After the test sample falls onto the contact platform 3, the state of the getter is observed and the test results are recorded.
[0032] The test conditions and results are shown in Table 1: Table 1: Test conditions and results table.
[0033] Falling height (m) <![CDATA[Impact vibration strength (kJ / m 2 ).]]> Getter Status 0.5 150 intact 1 330 Cracks on the surface 2 500 Shatter From the data of sample 1, it can be seen that the shock vibration limit that this type of getter can withstand is 330kJ / m 2 .
Claims
1. A simple device for testing the firmness of a getter, characterized in that: include: A getter fixing assembly (1) for fixing a getter as a test sample; The parabolic pipe (2) is composed of a plurality of vertical square iron pipes and is used for changing and assembling according to the test requirements; A contact table (3) is placed below the parabolic pipe (2) and is used to measure the impact effect of the test sample; The support frame (4) is arranged at the four corners of the parabolic pipe (2) and is used to fix the parabolic pipe (2).
2. The simple device for testing the firmness of a getter as claimed in claim 1, characterized in that: The getter fixing assembly (1) comprises a mounting groove (11), an upper fixing seat (12), a lower fixing seat (13) and a fastening screw (14); The mounting groove (11) is fixed between the upper fixing seat (12) and the lower fixing seat (13) by means of a fastening screw (14) and is used for mounting a getter.
3. The simple device for testing the firmness of a getter as claimed in claim 2, characterized in that: The mounting groove (11) comprises three types: a cylindrical mounting groove (111), an annular mounting groove (112), and an annular plus central column mounting groove (113); the three types have the same outer edge dimensions and can be replaced at any time.
4. The simple device for testing the firmness of a getter as claimed in claim 1, characterized in that: The parabolic pipe (2) is composed of no less than 40 square iron sheets with a length of 20 cm and a width of 20 cm, which are assembled with rivets to form a rectangular parabolic pipe with a length of 20 cm, a width of 20 cm and a height of not less than 2 m; The parabolic pipe (2) is erected on the ground with a gap of 20 cm from the ground, and the four corners are fixed with support frames (4) and ballast.
5. The simple device for testing the firmness of a getter as claimed in claim 1, characterized in that: The contact platform (3) is a smooth iron block with a length and width of 20 cm and a thickness of not less than 5 cm and not more than 10 cm.
6. The simple device for testing the firmness of a getter as claimed in claim 1, characterized in that: It also includes a smooth block that is not used as a contact platform (3) and has a length and width of 10 cm and a thickness of not less than 5 cm and not more than 10 cm; When the getter fixing assembly (1) is placed on the contact table (3), a smooth iron block that does not serve as a contact table is dropped from a height required for the test to hit the getter fixing assembly (1).
7. The simple device for testing the firmness of a getter and the method for using the same as claimed in claim 1, characterized in that: The method further comprises installing a rotating shaft outside the parabolic pipe (2), so that the parabolic pipe (2) can rotate around the rotating shaft, and is used to adjust the position or angle of the parabolic pipe (2) after completing a test, so as to prepare for the next test.
8. A method for using a simple device for testing the firmness of a getter according to any one of claims 1 to 7, characterized in that: The specific steps include: S1: Install the getter in the getter fixing assembly (1) to form a test sample; S2: Place the test sample on an electronic balance and weigh it; S3: assembling the parabolic pipe (2) and the contact table (3) into a test table according to experimental requirements; S4: Drop the test sample from the parabolic pipe (2) and take it out after it falls on the contact table (3), observe the state of the getter, and obtain the test result.