Metal rubidium and cesium sealing method adopting glass sleeve, sealing device and using method

Abstract

The invention relates to the technical field of rubidium and cesium sealing packaging, in particular to a metal rubidium and cesium sealing method adopting a glass sleeve, a sealing device and a using method, and the sealing device used in the sealing method comprises a glass receiver and the glass sleeve. The glass receiver comprises a main pipe and a branch pipe which are communicated, and the glass sleeve is connected with the other end of the branch pipe. The metal rubidium and cesium sealing method comprises the following steps: S1, connecting a glass receiver with a metal rubidium and cesium preparation device under a vacuum condition; s2, enabling the metal rubidium cesium to enter the glass receiver and the glass sleeve in a liquid form. And S3, burning and sealing the branch pipe, so that the branch pipe is separated from the main pipe, and sealed metal rubidium cesium is obtained. The sealing method is easy to operate, the prepared sealed metal rubidium and cesium is located in a completely-sealed environment formed between the branch pipe and the glass sleeve, air cannot permeate, internal metal rubidium and cesium cannot be oxidized, and the metal rubidium and cesium can be stored for a long time.

Description

Technical Field

[0001] The invention belongs to the technical field of metal rubidium-cesium packaging, and in particular relates to a metal rubidium-cesium sealing method using a glass sleeve, a sealing device and a use method. Background Art

[0002] Rubidium and cesium, as light rare metals, are widely used in defense, electronics, medicine, optical fiber, optical glass, laser, catalyst and other fields. Rubidium and cesium have unique photoelectric effects, which are characterized by the largest photoelectric valve, the smallest electron work function, a very low melting point, and high softness and plasticity. Metallic cesium can be used in the production of frequency standard cesium atomic clocks, cesium photocathodes, trace getters and detectors in vacuum devices, etc. Metallic rubidium and metallic rubidium isotopes can be used in frequency standard rubidium (isotope) atomic clocks, electronics, optics and infrared technology, and are raw materials for the manufacture of photocells, photocathodes, etc.

[0003] In the field of electronics industry, materials containing rubidium and cesium are used as photocathodes of photoelectric emission materials, and are indispensable components of photoelectric devices such as phototubes and photomultiplier tubes. These devices have the characteristics of wide light wave range, stable performance and high sensitivity, and can be widely used in astronomical navigation systems, physics, nuclear physics, astronomy and astrophysics, ultraviolet recording and spectral analysis. Rubidium and cesium are also important materials for my country's national defense technology, aerospace industry and military high-tech equipment, and play an extremely important role in my country's national defense technology, aerospace and military fields. Metallic rubidium and metallic cesium can be used to manufacture atomic clocks with small size, light weight and high precision. Atomic clocks can implement high-precision control and operation of atomic bombs and hydrogen bombs, rocket and missile launches, space navigation, artificial satellites, etc.

[0004] With the development of human science and technology and the continuous deepening of research on rubidium and its application development, the quality requirements of metallic rubidium, cesium and its compounds are also constantly improving. However, the chemical properties of metallic rubidium and metallic cesium are very active and are easily oxidized after contact with air. Their production, transportation and storage must be isolated from air. Usually, metallic rubidium and cesium need to be stored in liquid paraffin, inert gas or vacuum.

[0005] In the prior art, rubidium metal is prepared in a vacuum environment, and currently, vials are mostly used to store and package rubidium metal on the market. However, the rubber stopper and aluminum-plastic seal of the vial may not provide a completely sealed environment. Over time, air may penetrate into the vial, causing oxidation of rubidium metal, so vials are not suitable for long-term storage of rubidium metal.

[0006] Therefore, in order to give full play to the efficient application of metallic rubidium and cesium, it is necessary to provide a process with better storage effect and the ability to preserve metallic rubidium and cesium for a long time. Summary of the invention

[0007] 1. Technical issues to be resolved

[0008] In order to solve the technical problem that the sealing effect of storing rubidium and cesium in vials in the prior art is poor and rubidium and cesium cannot be stored for a long time, the present invention provides a metal rubidium and cesium sealing method using a glass sleeve, a sealing device and a use method.

[0009] (II) Technical solution

[0010] In order to achieve the above object, the main technical solutions adopted by the present invention include:

[0011] In a first aspect, the present invention provides a metal rubidium-cesium sealing method using a glass sleeve, wherein the metal rubidium-cesium sealing device used in the sealing method comprises a glass receiver and a glass sleeve; the glass receiver comprises a main pipe and a branch pipe connected to each other, and the glass sleeve is connected to the other end of the branch pipe;

[0012] The metal rubidium-cesium sealing method comprises the following steps:

[0013] S1: Under vacuum conditions, the glass receiver is sealed and connected to the metal rubidium-cesium preparation device;

[0014] S2: allowing the metallic rubidium and cesium prepared by the metallic rubidium and cesium preparation device to enter the glass receiver and the glass sleeve in liquid form;

[0015] S3: The branch pipe is burned and sealed to separate the branch pipe from the main pipe, so that the metal rubidium-cesium is sealed in the closed space between the branch pipe and the glass sleeve to obtain sealed metal rubidium-cesium.

[0016] In the metal rubidium-cesium sealing method as described above, preferably, in step S1, the main pipe of the glass receiver is sealed and connected to the metal rubidium-cesium preparation device under vacuum conditions.

[0017] In the metal rubidium-cesium sealing method as described above, preferably, in step S2, the metal rubidium-cesium preparation device prepares metal rubidium-cesium vapor, and the metal rubidium-cesium vapor enters the glass receiver and the glass sleeve in liquid form after condensation.

[0018] In a second aspect, the present invention provides a metal rubidium-cesium sealing device used in the above metal rubidium-cesium sealing method, comprising a glass receiver and a glass sleeve;

[0019] The glass receiver comprises a main pipe and a branch pipe which are connected to each other, and the glass sleeve is connected to the other end of the branch pipe.

[0020] In the metal rubidium-cesium sealing device as described above, preferably, the branch tubes include a plurality of branch tubes, and the number of the glass sleeves is the same as the number of the branch tubes.

[0021] The sealing device of metal rubidium and cesium as described above, preferably, the glass sleeve comprises a capillary tube and a protective tube, and the protective tube is connected to the capillary tube and the branch tube at the same time;

[0022] The capillary tube is located inside the protection tube.

[0023] The metal rubidium-cesium sealing device as described above, preferably, the other end of the capillary is a capillary structure;

[0024] The protection tube is connected to the glass sleeve and the branch tube at the same time;

[0025] In step S3, the branch tube is sealed by burning to separate the branch tube from the main tube, so that the metal rubidium-cesium is sealed in the closed space formed between the branch tube and the capillary tube to obtain sealed metal rubidium-cesium.

[0026] In a third aspect, the present invention further provides a method for using the glass sleeve with internally sealed metal rubidium and cesium prepared by the above sealing method, comprising the following steps:

[0027] A1: Install the glass tube with sealed metal rubidium and cesium inside in the rubidium and cesium using device under vacuum conditions;

[0028] A2: Break the capillary structure of the capillary tube, and then use the heating device in the rubidium-cesium using device to convert the metal rubidium-cesium into metal rubidium-cesium vapor;

[0029] A3: The metallic rubidium-cesium vapor evaporates out of the rubidium-cesium utilization device and then enters the target system.

[0030] In the method for using the glass sleeve with metal rubidium and cesium sealed inside as described above, preferably, in step A1, the protective tube is first broken under vacuum conditions, and then magnetic beads are placed into the broken protective tube.

[0031] The method for using the glass sleeve with metal rubidium and cesium sealed inside as described above, preferably, in step A2, the glass sleeve with metal rubidium and cesium sealed inside and magnetic beads placed therein is installed in a rubidium and cesium using device, so that the end where the capillary structure is located is higher than the other end of the capillary, the magnetic beads are moved by the magnetic bead traction device, and then the capillary structure is broken.

[0032] (III) Beneficial effects

[0033] The beneficial effects of the present invention are:

[0034] The sealing method of metal rubidium and cesium of the present invention connects a glass receiver with a metal rubidium and cesium preparation device, and after the metal rubidium and cesium enter the glass sleeve in liquid state, the branch pipe is burned and sealed to achieve a better sealing effect, thereby obtaining a glass sleeve with metal rubidium and cesium sealed inside.

[0035] The sealing method of the present invention is carried out in a vacuum environment, is easy to operate, can effectively prevent the metal rubidium and cesium from contacting with air and other impurities during the sealing and packaging process, and also achieves complete sealing of the metal rubidium and cesium in the glass sleeve by burning the branch tube.

[0036] The glass sleeve with sealed metal rubidium and cesium prepared by the present invention can provide a completely sealed environment, air cannot penetrate, and will not cause oxidation of the metal rubidium and cesium inside, so the metal rubidium and cesium can be stored for a long time, ensuring the purity of the metal rubidium and cesium. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the connection state between the sealing device of metal rubidium and cesium and the metal rubidium and cesium preparation device in the present invention;

[0038] Figure 2 It is a schematic structural diagram of the sealing device of metal rubidium and cesium in the present invention;

[0039] Figure 3 This is a schematic diagram of the structure of a glass sleeve with metal rubidium and cesium sealed inside prepared by the present invention + a partially burned branch pipe;

[0040] Figure 4 Schematic diagram of the state of sealed metal rubidium-cesium installed in a rubidium-cesium using device.

[0041] [Description of Reference Numerals]

[0042] 1: glass receiver; 101: main pipe; 102: branch pipe; 2: capillary tube; 201: capillary structure; 3: protective tube; 4: sealing device; 5: first heating jacket; 6: rubidium-cesium source; 7: first distillation device; 8: first condensation device; 9: first valve; 10: connecting pipe; 11: mounting structure; 12: second heating jacket; 13: second distillation device; 14: second condensation device; 15: second valve; 16: magnetic beads; 17: metal rubidium-cesium; 18: third valve. DETAILED DESCRIPTION

[0043] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0044] First, the present invention provides a metal rubidium-cesium sealing method using a glass sleeve. The sealing method of the present invention requires the use of a metal rubidium-cesium sealing device, which includes a glass receiver 1 and a glass sleeve. The glass receiver 1 includes a main pipe 101 and a branch pipe 102 that are connected, and the glass sleeve is connected to the other end of the branch pipe 102.

[0045] The metal rubidium-cesium sealing method comprises the following steps:

[0046] S1: Under vacuum conditions, the glass receiver 1 is sealed and connected to the metal rubidium-cesium preparation device.

[0047] S2: Allow the metallic rubidium and cesium prepared by the metallic rubidium and cesium preparation device to enter the glass receiver 1 and the glass sleeve in liquid form.

[0048] S3: Sinter the branch pipe 102 to separate the branch pipe 102 from the main pipe 101, so that the metal rubidium-cesium is sealed in the closed space formed between the branch pipe 102 and the glass sleeve, and the sealed metal rubidium-cesium is obtained. Figure 3 As shown, the metal rubidium cesium is sealed in a structure consisting of a glass sleeve and a partially burned branch tube. In this step, by burning the branch tube 102, a better sealing effect can be achieved to obtain sealed metal rubidium cesium.

[0049] The sealing method of the present invention is carried out in a vacuum environment, and the operation is simple. The metal rubidium-cesium can be effectively prevented from contacting with air and other impurities during the sealing and packaging process, and the metal rubidium-cesium is completely sealed by burning the branch pipe. The sealed metal rubidium-cesium prepared by the present invention is in a completely sealed environment formed between the branch pipe and the glass sleeve, and air cannot penetrate, which will not cause oxidation of the metal rubidium-cesium inside, so the metal rubidium-cesium can be stored for a long time, ensuring the purity of the metal rubidium-cesium. In addition, the sealing method of the present invention can better ensure that the metal rubidium-cesium is isolated from air and impurities from the front-end preparation to the back-end packaging, and in the subsequent use process.

[0050] Preferably, in the above step S1, the main pipe 101 of the glass receiver 1 is sealed and connected to the metal rubidium-cesium preparation device under vacuum conditions. Figure 1 As shown, a connecting tube 10 can be provided on the metal rubidium-cesium preparation device, and then the main pipe 101 of the glass receiver 1 is sealed and connected to the connecting tube 10 through the sealing device 4 to ensure that the metal rubidium-cesium smoothly enters the glass receiver 1.

[0051] Preferably, in the above step S2, the metal rubidium-cesium preparation device prepares metal rubidium-cesium vapor, and the metal rubidium-cesium vapor enters the glass receiver 1 and the glass sleeve in liquid form after condensation.

[0052] Preferably, if Figure 1As shown, the metal rubidium-cesium preparation device includes a first heating jacket 5, a rubidium-cesium source 6, a first distillation device 7 and a first condensation device 8. The rubidium-cesium source 6 is arranged inside the first distillation device 7 to provide metal rubidium, the first heating jacket 5 is arranged outside the first distillation device 7 to heat the first distillation device 7, and the first condensation device 8 is arranged outside the first distillation device 7 and connected to the vacuum system through a first valve 9. The above-mentioned connecting pipe 10 is connected to the first distillation device 7. In the above-mentioned step S2, the first distillation device 7 is heated by the first heating jacket 5, so that the metal rubidium-cesium in the rubidium-cesium source 6 is heated to form metal rubidium-cesium vapor, and the first condensation device 8 condenses the metal rubidium-cesium vapor to obtain liquid metal rubidium-cesium. Since the glass receiver 1 is connected to the first distillation device 7 through the connecting pipe 10, the liquid metal rubidium-cesium can enter the glass receiver 1 and the glass sleeve.

[0053] In the above step S3, after the branch pipe 102 is sealed and separated from the main pipe 101, the main pipe 101 itself is still a closed system, and the remaining metal rubidium and cesium are still in a completely sealed state, because the glass has a tendency to shrink during the sealing process, and air and impurities cannot enter the branch pipe during the sealing process. And preferably, step S3 also seals the branch pipe 101 under vacuum conditions.

[0054] like Figure 2 As shown, the present invention also provides a sealing device for metal rubidium and cesium used in the above-mentioned metal rubidium and cesium sealing method, comprising a glass receiver 1 and a glass sleeve. The glass receiver 1 comprises a main pipe 101 and a branch pipe 102 which are connected, and the glass sleeve is connected to the other end of the branch pipe 102. Among them, one end of the main pipe 101 is open for connecting to the metal rubidium and cesium preparation device, and the other end is a sealing structure, the branch pipe 102 is connected to the glass sleeve, and the other end of the glass sleeve is closed.

[0055] Preferably, the diameter of the main pipe 101 is greater than the diameter of the branch pipe 102, and the glass receiver 1 is preferably made of hard glass, specifically high borosilicate glass, such as 95 glass.

[0056] Preferably, the branch tubes 102 in the present invention can be provided in plurality, and the number of glass sleeves is the same as the number of branch tubes 102, and they are connected one-to-one with the branch tubes 102. In the present invention, the glass sleeves and branch tubes 102 can be designed to have fixed sizes so that they can quantitatively seal and encapsulate metal rubidium and cesium.

[0057] Preferably, the glass sleeve includes a capillary 2 and a protective tube 3, the protective tube 3 is connected to the capillary 2 and the branch tube 102 at the same time, the capillary 2 is located inside the protective tube 3, and the other end of the capillary 2 is a capillary structure 201. The capillary 2 can be easily broken when the glass sleeve (and the partially burned branch tube 102) with metal rubidium and cesium sealed inside is used, so that the metal rubidium and cesium can be evaporated from the glass sleeve (and the partially burned branch tube 102).

[0058] Further preferably, the capillary structure 201 is relatively fragile. In order to prevent the capillary structure 201 from breaking before using the glass sleeve that seals the metal rubidium-cesium inside, the metal rubidium-cesium sealing device of the present invention is further provided with a protective tube 3 located outside the capillary 2. The protective tube 3 is simultaneously connected to the glass sleeve and the branch tube 102 by heat melting, as shown in FIG. Figure 2 As shown, the other end of the protection tube 3 may be conical. In step S3, the branch tube 102 is sealed to separate the branch tube 102 from the main tube 101, and a glass sleeve with metal rubidium and cesium sealed inside and the protection tube 3 outside is obtained. Similarly, the glass sleeve and the protection tube 3 are also preferably made of hard glass, specifically high borosilicate glass, such as 95 glass.

[0059] Further preferably, the glass sleeve of the present invention can be prepared according to the following method:

[0060] Prepare a glass capillary with a capillary structure 201, denoted as capillary 2, one end of the glass capillary is capillary, and the other end is open. Prepare another glass tube with both ends open, denoted as protective tube 3. The open end of the capillary 2 is a sloped surface formed by pulling cylindrical glass. Align one end of the protective tube 3 with the open end of the capillary 2 and fuse them together to obtain a glass sleeve.

[0061] Finally, the open end of the capillary tube 2 is melted and connected to the branch tube 102 to obtain the glass receiver 1.

[0062] The present invention also provides a method for using the glass sleeve with internally sealed metal rubidium and cesium prepared by the above sealing method, comprising the following steps:

[0063] A1: Under vacuum conditions, the glass sleeve with sealed metal rubidium and cesium inside and the burned and sealed branch pipe are installed in the rubidium and cesium using device.

[0064] A2: Break the capillary structure 201 of the capillary tube 2, and then convert the metallic rubidium and cesium into metallic rubidium and cesium vapor through the heating device in the rubidium and cesium using device.

[0065] A3: The metallic rubidium-cesium vapor evaporates out of the rubidium-cesium using device and then enters the target system to make the high-purity metallic rubidium-cesium participate in the target reaction.

[0066] Preferably, if Figure 4 As shown, the rubidium-cesium using device may include a second heating jacket 12, a second distillation device 13, a second condensation device 14, and a mounting structure 11. The second heating jacket 12 is arranged outside the second distillation device 13, and is used to heat the second distillation device 13 to turn the metal rubidium-cesium into steam. The second condensation device 14 is arranged outside the second distillation device 13, and the rubidium-cesium using device can be connected to the vacuum system through the second valve 15. The mounting structure 11 is fixedly arranged inside the second distillation device 13. In addition, a third valve 18 can be arranged, and the rubidium-cesium using device can be connected to the target system through the third valve 18.

[0067] Preferably, in the above step A1, under vacuum conditions, the protection tube 3 is firstly broken, and then the magnetic beads 16 are placed into the broken protection tube 3.

[0068] Preferably, in step A2, the glass sleeve with metal rubidium cesium 17 sealed inside and the burnt and sealed branch tube are installed in the mounting structure 11 together with the magnetic beads 16 placed in step A1, and the end where the capillary structure 201 is located is higher than the other end of the capillary 2, and the magnetic beads 16 are moved by the magnetic bead pulling device to break the capillary structure 201 of the glass sleeve, so that the second heating sleeve 12 converts the metal rubidium cesium into metal rubidium cesium vapor. The magnetic bead pulling device can be set in the rubidium cesium using device.

[0069] The above is only a preferred embodiment of the present invention, and does not limit the present invention in other forms. Any person skilled in the art can use the above disclosed technical content to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention without departing from the technical solution of the present invention still belongs to the protection scope of the technical solution of the present invention.

Claims

1. A metal rubidium-cesium sealing method using a glass sleeve, characterized in that: The metal rubidium-cesium sealing device used in the sealing method comprises a glass receiver (1) and a glass sleeve; the glass receiver (1) comprises a main pipe (101) and a branch pipe (102) that are connected, and the glass sleeve is connected to the other end of the branch pipe (102); The metal rubidium-cesium sealing method comprises the following steps: S1: Under vacuum conditions, the glass receiver (1) is sealed and connected to a metal rubidium-cesium preparation device; S2: allowing the metallic rubidium and cesium prepared by the metallic rubidium and cesium preparation device to enter the glass receiver (1) and the glass sleeve in liquid form; S3: Sintering the branch pipe (102) to separate the branch pipe (102) from the main pipe (101), so that the metal rubidium-cesium is sealed in the closed space between the branch pipe (102) and the glass sleeve, thereby obtaining sealed metal rubidium-cesium.

2. The metal rubidium-cesium sealing method according to claim 1, characterized in that: In step S1, the main pipe (101) of the glass receiver (1) is sealed and connected to a metal rubidium-cesium preparation device under vacuum conditions.

3. The metal rubidium-cesium sealing method according to claim 1, characterized in that: In step S2, the metal rubidium-cesium preparation device prepares metal rubidium-cesium vapor, and the metal rubidium-cesium vapor enters the glass receiver (1) and the glass sleeve in liquid form after condensation.

4. A metal rubidium-cesium sealing device used in the metal rubidium-cesium sealing method according to any one of claims 1 to 3, characterized in that: It comprises a glass receiver (1) and a glass sleeve; The glass receiver (1) comprises a main pipe (101) and a branch pipe (102) which are connected to each other, and the glass sleeve is connected to the other end of the branch pipe (102).

5. The metal rubidium-cesium sealing device according to claim 4, characterized in that: The branch pipes (102) include a plurality of branch pipes, and the number of the glass sleeves is the same as the number of the branch pipes (102).

6. The metal rubidium-cesium sealing device according to claim 4, characterized in that: The glass sleeve comprises a capillary tube (2) and a protective tube (3), wherein the protective tube (3) is connected to the capillary tube (2) and the branch tube (102) at the same time; The capillary tube (2) is located inside the protective tube (3).

7. The metal rubidium-cesium sealing device according to claim 4, characterized in that: The other end of the capillary tube (2) is a capillary structure (201); In step S3, the branch tube (102) is sealed to separate the branch tube (102) from the main tube (101), and the metal rubidium-cesium is sealed in a closed space formed between the branch tube (102) and the capillary tube (2) to obtain sealed metal rubidium-cesium.

8. A method for using a glass sleeve with internally sealed metal rubidium and cesium prepared by the sealing method according to any one of claims 1 to 3, characterized in that: The steps include: A1: Install the glass tube with sealed metal rubidium and cesium inside in the rubidium and cesium using device under vacuum conditions; A2: breaking the capillary structure (201) of the capillary tube (2), and then converting the metal rubidium and cesium into metal rubidium and cesium vapor through a heating device in a rubidium and cesium using device; A3: The metallic rubidium-cesium vapor evaporates out of the rubidium-cesium utilization device and then enters the target system.

9. The method for using the glass sleeve with metal rubidium and cesium sealed inside according to claim 8, characterized in that: In step A1, under vacuum conditions, the protective tube (3) is first broken, and then the magnetic beads (16) are placed into the broken protective tube (3).

10. The method for using the glass sleeve with metal rubidium and cesium sealed inside according to claim 9, characterized in that: In step A2, a glass sleeve sealed with metal rubidium and cesium and containing magnetic beads (16) is installed in a rubidium and cesium use device, so that one end where the capillary structure (201) is located is higher than the other end of the capillary (2), and the magnetic beads (16) are moved by a magnetic bead pulling device, and then the capillary structure (201) is broken.

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