Acid boiling destressing device
By designing an acid boiling stress removal device, the acidic medium reacts with the YAG laser rod to remove its mechanical stress, the problem of not being able to completely remove stress in the prior art is solved, and the beam quality of the laser is improved.
Patent Information
- Application Number
- CN202421772490.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-25
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-07-25
AI Technical Summary
The prior art cannot completely remove residual stress when removing internal stress of YAG laser rods, affecting the beam quality and high-precision application of the laser.
An acid boiling stress removal device is designed to heat the acidic medium through constant temperature heating, and react with the crystal rod with the acidic medium to remove its mechanical stress. At the same time, a supporting structure is provided in the second storage tank to isolate and protect the crystal rod.
Effectively removes mechanical stress in the crystal rod, improves the beam quality of the laser, and reduces damage to the crystal rod during the acid cooking process.
Smart Images
Figure CN222795792U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of crystal rod preparation, in particular to an acid boiling stress relief device. Background Art
[0002] YAG laser rods, i.e. yttrium aluminum garnet crystal rods doped with rare earth ions, are the core working material of a widely used solid-state laser, the "YAG laser". They can be divided into: Nd:YAG crystal, Nd:Ce:YAG crystal, Yb:YAG crystal, etc. The laser rods used in laser marking machines and other industrial laser equipment are generally Nd:YAG crystals.
[0003] During the normal growth and preparation of YAG laser rods, stress will be generated inside, which will have an adverse effect on the quality of the laser beam when the crystal rods are assembled into lasers. In the prior art, the measure to eliminate stress is to simply perform conventional annealing. Although the stress can be partially eliminated, some residual stress will still remain. In the field of high-precision laser applications, the adverse effect of this residual stress on laser performance cannot be ignored.
[0004] The extinction ratio is an important quantitative indicator for measuring the performance of laser crystals. It reflects the light transmission characteristics of the crystal under different polarization states, characterizes the magnitude of the depolarization loss caused by stress birefringence formed by certain defects in the laser crystal, and is an important parameter for determining laser performance such as Q switching and frequency doubling. Its definition is to place the laser crystal between parallel polarizers and orthogonal polarizers, use a light source to be incident from one end of the crystal, measure the optical power at the output end, and obtain two values P∥ and P⊥ respectively. The extinction ratio is the ratio of P∥ and P⊥, take its logarithm and multiply it by 10, and the unit is dB. The larger the extinction ratio value, the smaller the stress inside the crystal. Utility Model Content
[0005] The purpose of the utility model is to provide an acid boiling stress relief device to solve the shortcomings of the above-mentioned prior art, thereby solving the problem that there is no device in the prior art that can fully remove the stress of the crystal rod.
[0006] The utility model is realized by the following scheme:
[0007] An acid boiling stress relief device includes at least but not limited to a heating component, a first containing tank and a second containing tank; the second containing tank is arranged in the first containing tank, and the first containing tank is provided with a support frame for lifting the second containing tank; the first containing tank is provided with a heating medium, the second containing tank is provided with an acidic medium, and the second containing tank is also provided with a support structure for limiting the crystal rod.
[0008] Based on the structure of the above-mentioned acid boiling stress relief device, the heating component specifically adopts an electric heating furnace, and the bottom of the first containing tank is in direct contact with the electric heating furnace.
[0009] Based on the structure of the above-mentioned acid boiling stress relief device, the support frame includes support legs and a support plate, the support plate is a hollow structure as a whole, the support plate includes a support ring and a support rod, the support rod is arranged on the support ring at intervals, and the support legs are obliquely arranged on the support ring.
[0010] Based on the structure of the above-mentioned acid boiling stress relief device, the first containing tank is a truncated cone structure with one end open, the large circular surface of the first containing tank is open, and the small circular surface is in contact with the heating component.
[0011] Based on the structure of the above-mentioned acid boiling stress relief device, the second containing tank is a straight cylindrical structure.
[0012] Based on the structure of the above-mentioned acid boiling stress relief device, a hollow glass cover is provided on the second containing tank. The hollow glass cover is a liquid level truncated cone structure as a whole. The hollow glass cover is covered on the straight cylindrical second containing tank.
[0013] Based on the structure of the above-mentioned acid boiling stress relief device, a counterweight block is arranged in the second containing tank, and the material of the counterweight block is the same as that of the crystal rod to be acid boiled.
[0014] Based on the structure of the above-mentioned acid boiling stress relief device, the support structure includes a support plate, and a plurality of V-shaped grooves are arranged on the end surface of the support plate away from the ground of the second containing tank. The V-shaped grooves are arranged at intervals, and the size of the V-shaped grooves is adapted to the structure of the crystal rod to be acid boiled.
[0015] Based on the structure of the above-mentioned acid boiling stress relief device, the material of the support plate is the same as that of the crystal rod to be acid boiled.
[0016] Based on the structure of the above-mentioned acid boiling stress relief device, the acidic medium is concentrated hydrochloric acid, and the heating medium is water.
[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:
[0018] 1. This solution heats the acidic medium by means of constant temperature heating to avoid violent boiling of the acidic medium caused by local high temperature. The acidic medium can be heated gently and the stress of the crystal rod in the second holding tank can be removed. The principle of stress removal is that the mechanical stress in the crystal rod is removed by the reaction between the acidic medium and the crystal rod. At the same time, a support structure is set in the second holding tank to isolate each crystal rod to avoid collision between crystal rods during the acid boiling stress removal process, thereby avoiding damage to the crystal rod. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0020] Figure 2 It is a schematic diagram of the top view of the support frame in the utility model;
[0021] Description of the drawings: 1. Heating component; 2. First containing tank; 3. Second containing tank; 4. Support frame; 5. Heating medium; 6. Acidic medium; 7. Hollow glass cover; 8. Counterweight block; 9. Support plate; 10. V-shaped groove; 11. Crystal rod; 41. Support leg; 42. Support ring; 43. Support rod. DETAILED DESCRIPTION
[0022] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.
[0023] Any feature disclosed in this specification (including any additional claims and abstract), unless otherwise stated, may be replaced by other equivalent or alternative features having similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.
[0024] In the description of the present invention, it should be understood that the terms "up", "down", "left", "right", etc., indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.
[0025] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features.
[0026] Example 1
[0027] like Figure 1-2 As shown, the utility model provides a technical solution:
[0028] An acid boiling stress relief device, which at least includes but is not limited to a heating component 1, a first containing tank 2 and a second containing tank 3; the second containing tank 3 is arranged in the first containing tank 2, and the first containing tank 2 is provided with a support frame 4 for lifting the second containing tank 3; a heating medium 5 is arranged in the first containing tank 2, an acidic medium 6 is arranged in the second containing tank 3, and the second containing tank 3 is also provided with a support structure for limiting crystal rods.
[0029] Based on the above structure, the present solution heats the acidic medium 6 by means of constant temperature heating to avoid violent boiling of the acidic medium 6 caused by local high temperature. The acidic medium 6 can be heated gently and stress removal can be performed on the crystal rods in the second holding tank 3. The principle of stress removal is that the mechanical stress in the crystal rods is removed by reacting the acidic medium 6 with the crystal rods. At the same time, a support structure is provided in the second holding tank 3 to isolate each crystal rod to avoid collision between the crystal rods during the acid boiling stress removal process, thereby preventing damage to the crystal rods.
[0030] As an example, the heating component 1 may be an electric heating furnace, and the bottom of the first containing tank 2 is in direct contact with the electric heating furnace.
[0031] Based on the above structure, the first holding tank 2 is directly heated by an electric heating furnace to heat the heating medium 5, and the heating medium 5 transfers the temperature to the second holding tank 3, so that the part of the second holding tank 3 immersed in the heating medium 5 can be evenly heated.
[0032] As an example, the support frame 4 may include support legs 41 and a support plate. The support plate is a hollow structure as a whole. The support plate includes a support ring 42 and a support rod 43. The support rod 43 is arranged on the support ring 42 at intervals, and the support legs 41 are obliquely arranged on the support ring 42.
[0033] Based on the above structure, the support plate is set as a hollow structure, so that the bottom of the second containing tank 3 can also be in contact with the heating medium 5 as much as possible, so that the heating of the second containing tank 3 is more even.
[0034] As an example, the first containing groove 2 is a truncated cone structure with one end open. The large circular surface of the first containing groove 2 is open, and the small circular surface is in contact with the heating component 1.
[0035] As an example, the second containing tank 3 is a straight cylindrical structure, and a hollow glass cover 7 can be provided on the second containing tank 3 . The hollow glass cover 7 is a liquid level truncated cone structure as a whole, and the hollow glass cover 7 covers the straight cylindrical second containing tank 3 .
[0036] Based on the above structure, the hollow glass cover 7 is provided to facilitate covering the second containing tank 3 on the one hand, reduce the heat loss of the acidic medium 6 during heating, and maintain a constant temperature; on the other hand, the acidic medium 6 can be condensed on the top of the glass cover and then reflux into the second containing tank 3, reducing the evaporation loss of the acidic medium 6.
[0037] As an example, a counterweight block 8 may be provided in the second containing tank 3. The material of the counterweight block 8 is the same as that of the crystal rod to be pickled. This can avoid introducing impurities therein and affecting the pickled crystal rod.
[0038] As an example, the support structure may include a support plate 9, on the end surface of the support plate 9 away from the ground of the second containing tank 3, a plurality of V-grooves 10 may be provided, the V-grooves 10 are arranged at intervals, and the size of the V-grooves 10 is adapted to the structure of the crystal rod to be pickled.
[0039] Based on the above structure, when the crystal rod is placed on the support plate 9, the sharp ends between adjacent V-grooves 10 can automatically space the crystal rods, and the spaced crystal rods can roll into the V-grooves 10, so that each V-groove 10 can fix a crystal rod, preventing the crystal rods from colliding due to the boiling acidic medium 6 inside after heating.
[0040] As an example, the material of the support plate 9 is the same as the material of the crystal rod to be pickled.
[0041] As an example, the acidic medium 6 may be concentrated hydrochloric acid, and the heating medium 5 may be water;
[0042] As an example, the second containing tank may be made of glass.
[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. An acid boiling stress relief device, characterized in that: At least includes but is not limited to a heating component, a first holding tank and a second holding tank; the second holding tank is arranged in the first holding tank, and the first holding tank is provided with a support frame for lifting the second holding tank; the first holding tank is provided with a heating medium, the second holding tank is provided with an acidic medium, and the second holding tank is also provided with a support structure for limiting the crystal rod.
2. The acid boiling stress relief device according to claim 1, characterized in that: The heating component specifically adopts an electric heating furnace, and the bottom of the first containing tank is in direct contact with the electric heating furnace.
3. The acid boiling stress relief device according to claim 2, characterized in that: The support frame includes support legs and a support plate. The support plate is a hollow structure as a whole. The support plate includes a support ring and a support rod. The support rod is arranged on the support ring at intervals. The support legs are obliquely arranged on the support ring.
4. The acid boiling stress relief device according to claim 3, characterized in that: The first containing groove is a truncated cone structure with one end open. The large circular surface of the first containing groove is open, and the small circular surface is in contact with the heating component.
5. The acid boiling stress relief device according to claim 4, characterized in that: The second containing tank is a straight cylindrical structure.
6. The acid boiling stress relief device according to claim 5, characterized in that: The second containing tank is provided with a hollow glass cover, the hollow glass cover is a liquid level truncated cone structure as a whole, and the hollow glass cover is covered on the straight cylindrical second containing tank.
7. The acid boiling stress relief device according to claim 6, characterized in that: A counterweight block is arranged in the second containing tank, and the material of the counterweight block is the same as that of the crystal rod to be acid-boiled.
8. The acid boiling stress relief device according to claim 7, characterized in that: The support structure comprises a support plate, on the end surface of the support plate away from the ground of the second containing tank is provided with a plurality of V-shaped grooves, the V-shaped grooves are arranged at intervals, and the size of the V-shaped grooves is adapted to the structure of the crystal rod to be acid-boiled.
9. The acid boiling stress relief device according to claim 8, characterized in that: The material of the support plate is the same as that of the crystal rod to be acid-boiled.
10. The acid boiling stress relief device according to claim 9, characterized in that: The acidic medium is concentrated hydrochloric acid, and the heating medium is water.