CN103333307B - Packaging material of traveling wave tube and packaging method of traveling wave tube - Google Patents
Packaging material of traveling wave tube and packaging method of traveling wave tube Download PDFInfo
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- CN103333307B CN103333307B CN201310233394.0A CN201310233394A CN103333307B CN 103333307 B CN103333307 B CN 103333307B CN 201310233394 A CN201310233394 A CN 201310233394A CN 103333307 B CN103333307 B CN 103333307B
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- travelling
- polyethers
- wave tubes
- isocyanic ester
- encapsulating package
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Abstract
The invention discloses a packaging material of a traveling wave tube and a packaging method of the traveling wave tube, wherein the packaging material of the traveling wave tube is formed by mixing isocyanate and polyether, and each 100 parts by volume of the packaging material contains 45-55 parts by volume of the isocyanate; the purity of the isocyanate is 99-99.5%, the polyether comprises polyether, silicone oil and water, the content of the polyether is 98.5%, the content of the silicone oil is 1%, and the content of the water is 0.5%. The material for packaging the traveling wave tube is prepared by mixing and proportioning isocyanate and polyether, is easy to fill, and has good fixity and environmental factor resistance. The invention also discloses a travelling wave tube packaging method adopting the packaging material.
Description
Technical field
The invention belongs to microwave vacuum electron device assembling field, be specifically related to a kind of packaged material of travelling-wave tubes and the packaging process of this travelling-wave tubes.
Background technology
Dual mode travelling wave tube, due to its special mounting means, causes fixing between travelling-wave tubes and shell must be fixed by the high frequency input and output window of travelling-wave tubes; And require that tube shell of traveling wave tube is sealed structure; And the high frequency input/output structure of travelling-wave tubes is all be connected with slow wave system by the transition waceguide of oxygen free copper material, because oxygenless copper material is the poor material of a kind of hardness, support the slow wave system of travelling-wave tubes, electron beam gun and collector only by high frequency input/output structure; Travelling-wave tubes, in the vibration through high strength with when impacting, can deform, cause the input and output standing wave of travelling-wave tubes to be deteriorated, and then affect the electrical parameter of travelling-wave tubes output; The gas leakage of travelling-wave tubes input/output structure will be there is when comparatively serious, cause travelling-wave tubes to lose the job completely ability.
Due to the restriction of travelling-wave tubes placement space in shell, cause and the way of machinery cannot be adopted further to reinforce it; In order to improve the structural strength of travelling-wave tubes, a kind of special methods must be taked to reinforce it.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide one to be easy to fill, stationarity is good, the packaged material of the travelling-wave tubes that environment resistant factor is good and the packaging process of this travelling-wave tubes.
The present invention is achieved in that a kind of packaged material of travelling-wave tubes, and it is mixed by isocyanic ester and polyethers and forms, containing the isocyanic ester of 45 ~ 55 parts by volume in the packaged material of wherein every 100 parts by volume.
As the further improvement of such scheme, the purity of this isocyanic ester is 99-99.5%; In polyethers, the content of this polyethers is 98-98.5%.
Preferably, in polyethers, the content of this polyethers is 98.5%, and the content of silicone oil is 1%, and the content of water is 0.5%.
As the further improvement of such scheme, containing the isocyanic ester of 50 parts by volume in the packaged material of every 100 parts by volume.
The present invention also provides a kind of method for packing of travelling-wave tubes, and it adopts the packaged material as the travelling-wave tubes in Claims 1-4 as described in any one to encapsulate, and this method for packing comprises the following steps:
(1), after the container filling isocyanic ester and polyethers being respectively heated to 40 DEG C ± 2 DEG C, insulation 5 ± 1min is carried out;
(2) isocyanic ester and polyethers output are carried out being uniformly mixed to form packaged material, the flow of isocyanic ester is 20ml/s, and the flow of polyethers is 20ml/s, and the currency is 11 seconds;
(3) respectively there is a threaded hole at the two ends of the encapsulating package of this travelling-wave tubes, this packaged material is injected in a threaded hole of the encapsulating package of this travelling-wave tubes, gas in this encapsulating package is overflowed from another threaded hole, and this packaged material fills the whole encapsulating package of this travelling-wave tubes;
(4) with the threaded block offering a through hole, the threaded hole at these encapsulating package two ends is sealed;
After (5) two hours, the threaded block with through hole is taken out, the threaded sealing plate of apparatus and screw thread scribbles epoxy resin glue, the threaded hole of two on this encapsulating package is blocked.
The invention has the advantages that: described travelling-wave tubes encapsulation material fabrication process and packaging process, this travelling-wave tubes encapsulation material, adopt the mode of isocyanic ester and polyethers mixing match to make; Make isocyanic ester and polyethers have good trickling by heating and thermal insulation, and best chemical reaction velocity and the adequacy of chemical reaction can be obtained after in making equipment injection shell; By installing on the through hole of shell two ends M12 with a diameter be
through hole M12 threaded block, can when isocyanic ester and polyethers produce chemical reaction generation volumetric expansion, get rid of the gas in shell, the material effusion shell that isocyanic ester and polyether reactant also can be stoped in addition to generate, whole travelling-wave tubes is firmly encapsulated in tube shell of traveling wave tube by the material that isocyanic ester and polyether reactant generate, there is high structural strength, and ensured the stopping property of tube shell of traveling wave tube.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Embodiment 1
Travelling-wave tubes encapsulation material, is made up of isocyanic ester, polyethers ring; Isocyanic ester purity is 99-99.5%; Polyethers is made up of polyethers, silicone oil and water, and the content of its polyethers is 98-98.5%.
This travelling-wave tubes encapsulation material fabrication process and packaging process are:
(1) isocyanic ester and polyethers are left in the ducted clout of dosing apparatus to release, then after isocyanic ester and polyethers being heated to 40 DEG C ± 2 DEG C by dosing apparatus, carry out insulation 5 ± 1min(in subsequent multiple embodiments, dosing apparatus refers to the container filling isocyanic ester or polyethers, isocyanic ester and polyethers export respectively by pipeline from cell therefor, therefore can there be the clout of isocyanic ester or polyethers in pipeline, needed to heat before output isocyanic ester or polyethers);
(2) pipeline that passage A(refers to export isocyanic ester is set) 20ml/s, channel B (referring to the pipeline exporting polyethers) 20ml/s, setup times 11 seconds (10 ~ 12 seconds);
(3) the encapsulating package residue of travelling-wave tubes can packing space be 1.4 cubic decimeters, respectively there is a M12 threaded hole at encapsulating package two ends, injection muzzle is aimed at the threaded hole collecting one end near travelling-wave tubes, then starts filling gun, packaged material is expelled in the encapsulating package of travelling-wave tubes; After 11 seconds, equipment stops automatically.
(4) be highly 5mm M12 in the middle of have a diameter to be
the threaded block of through hole (
through hole be used for the eliminating of encapsulating package internal gas), the threaded hole at encapsulating package two ends is sealed.
After (5) two hours, will be with
the threaded block of through hole takes out, and with the M12 sealing plate being highly 5mm, screw thread coats epoxy resin glue, is blocked by the M12 threaded hole of two on encapsulating package.
Through verification experimental verification, use the method by this composition proportion and technique encapsulation travelling-wave tubes, travelling-wave tubes use for some time and after stryctyrak test the various electrical parameter of travelling-wave tubes, structure properties air-tightness stablize.
Embodiment 2
Travelling-wave tubes encapsulation material, is made up of isocyanic ester, polyethers ring; Isocyanic ester purity is 99-99.5%; Polyethers is made up of polyethers, silicone oil and water, and the content of its polyethers is 98-98.5%.
This travelling-wave tubes encapsulation material fabrication process and packaging process are:
(1) isocyanic ester and polyethers are left in the ducted clout of dosing apparatus to release, after then isocyanic ester and polyethers being heated to 40 DEG C ± 2 DEG C by dosing apparatus, carry out insulation 5 ± 1min;
(2) passage A(isocyanic ester is set) 20ml/s, channel B (polyethers) 15ml/s, setup times 11 seconds (10 ~ 12 seconds);
(3) the encapsulating package residue of travelling-wave tubes can packing space be 1.4 cubic decimeters, respectively there is a M12 threaded hole at encapsulating package two ends, injection muzzle is aimed at the threaded hole collecting one end near travelling-wave tubes, then starts filling gun, packaged material is expelled in the encapsulating package of travelling-wave tubes; After 11 seconds, equipment stops automatically.
(4) be highly 5mm M12 in the middle of have a diameter to be
the threaded block of through hole (
through hole be used for the eliminating of encapsulating package internal gas), the threaded hole at encapsulating package two ends is sealed.
Through verification experimental verification, use the method by this composition proportion and technique encapsulation travelling-wave tubes, find isocyanic ester and polyether reactant insufficient, fail space to fill completely; Therefore the structural strength of travelling-wave tubes can not be ensured.
Embodiment 3
Travelling-wave tubes encapsulation material, is made up of isocyanic ester, polyethers ring; Isocyanic ester purity is 99-99.5%; Polyethers is made up of polyethers, silicone oil and water, and the content of its polyethers is 98-98.5%.
This travelling-wave tubes encapsulation material fabrication process and packaging process are:
(1) isocyanic ester and polyethers are left in the ducted clout of dosing apparatus to release, after then isocyanic ester and polyethers being heated to 40 DEG C ± 2 DEG C by dosing apparatus, carry out insulation 5 ± 1min;
(2) passage A(isocyanic ester is set) 15ml/s, channel B (polyethers) 20ml/s, setup times 11 seconds (10 ~ 12 seconds);
(3) the encapsulating package residue of travelling-wave tubes can packing space be 1.4 cubic decimeters, respectively there is a M12 threaded hole at encapsulating package two ends, injection muzzle is aimed at the threaded hole collecting one end near travelling-wave tubes, then starts filling gun, packaged material is expelled in the encapsulating package of travelling-wave tubes; After 11 seconds, equipment stops automatically.
(4) be highly 5mm M12 in the middle of have a diameter to be
the threaded block of through hole (
through hole be used for the eliminating of encapsulating package internal gas), the threaded hole at encapsulating package two ends is sealed.
Through verification experimental verification, use the method by this composition proportion and technique encapsulation travelling-wave tubes, find isocyanic ester and polyether reactant insufficient, fail space to fill completely; Therefore the structural strength of travelling-wave tubes can not be ensured.
Embodiment 4
Travelling-wave tubes encapsulation material, is made up of isocyanic ester, polyethers ring; Isocyanic ester purity is 99-99.5%; Polyethers is made up of polyethers, silicone oil and water, and the content of its polyethers is 98-98.5%.
This travelling-wave tubes encapsulation material fabrication process and packaging process are:
(1) isocyanic ester and polyethers are left in the ducted clout of dosing apparatus to release, after then isocyanic ester and polyethers being heated to 50 DEG C ± 2 DEG C by dosing apparatus, carry out insulation 5 ± 1min;
(2) passage A(isocyanic ester is set) 20ml/s, channel B (polyethers) 20ml/s, setup times 11 seconds (10 ~ 12 seconds);
(3) the encapsulating package residue of travelling-wave tubes can packing space be 1.4 cubic decimeters, respectively there is a M12 threaded hole at encapsulating package two ends, injection muzzle is aimed at the threaded hole collecting one end near travelling-wave tubes, then starts filling gun, packaged material is expelled in the encapsulating package of travelling-wave tubes; After 11 seconds, equipment stops automatically.
(4) be highly 5mm M12 in the middle of have a diameter to be
the threaded block of through hole (
through hole be used for the eliminating of encapsulating package internal gas), the threaded hole at encapsulating package two ends is sealed.
After (5) two hours, will be with
the threaded block of through hole takes out, and with the M12 sealing plate being highly 5mm, screw thread coats epoxy resin glue, is blocked by the M12 threaded hole of two on encapsulating package.
Through verification experimental verification, use the travelling-wave tubes that the method encapsulates by this composition proportion and technique, because chemical reaction causes too rapidly resultant to break through the face of shell docking in the process of travelling-wave tubes encapsulation, and flow to outside pipe, destroy tube shell of traveling wave tube encapsulation to bubble-tight requirement.
Embodiment 5
Travelling-wave tubes encapsulation material, is made up of isocyanic ester, polyethers ring; Isocyanic ester purity is 99-99.5%; Polyethers is made up of polyethers, silicone oil and water, and the content of its polyethers is 98-98.5%.
This travelling-wave tubes encapsulation material fabrication process and packaging process are:
(1) isocyanic ester and polyethers are left in the ducted clout of dosing apparatus to release, after then isocyanic ester and polyethers being heated to 30 DEG C ± 2 DEG C by dosing apparatus, carry out insulation 5 ± 1min;
(2) passage A(isocyanic ester is set) 20ml/s, channel B (polyethers) 20ml/s, setup times 11 seconds (10 ~ 12 seconds);
(3) the encapsulating package residue of travelling-wave tubes can packing space be 1.4 cubic decimeters, respectively there is a M12 threaded hole at encapsulating package two ends, injection muzzle is aimed at the threaded hole collecting one end near travelling-wave tubes, then starts filling gun, packaged material is expelled in the encapsulating package of travelling-wave tubes; After 11 seconds, equipment stops automatically.
(4) be highly 5mm M12 in the middle of have a diameter to be
the threaded block of through hole (
through hole be used for the eliminating of encapsulating package internal gas), the threaded hole at encapsulating package two ends is sealed.
Through verification experimental verification, use the method by this composition proportion and technique encapsulation travelling-wave tubes, find isocyanic ester and polyether reactant insufficient, fail space to fill completely; Therefore the structural strength of travelling-wave tubes can not be ensured.
Embodiment 6
Travelling-wave tubes encapsulation material, is made up of isocyanic ester, polyethers ring; Isocyanic ester purity is 99-99.5%; Polyethers is made up of polyethers, silicone oil and water, and the content of its polyethers is 98-98.5%.
This travelling-wave tubes encapsulation material fabrication process and packaging process are:
(1) isocyanic ester and polyethers are left in the ducted clout of dosing apparatus to release, after then isocyanic ester and polyethers being heated to 40 DEG C ± 2 DEG C by dosing apparatus, carry out insulation 5 ± 1min;
(2) passage A(isocyanic ester is set) 20ml/s, channel B (polyethers) 20ml/s, setup times 7 seconds;
(3) the encapsulating package residue of travelling-wave tubes can packing space be 1.4 cubic decimeters, respectively there is a M12 threaded hole at encapsulating package two ends, injection muzzle is aimed at the threaded hole collecting one end near travelling-wave tubes, then starts filling gun, packaged material is expelled in the encapsulating package of travelling-wave tubes; After 11 seconds, equipment stops automatically.
(4) be highly 5mm M12 in the middle of have a diameter to be
the threaded block of through hole (
through hole be used for the eliminating of encapsulating package internal gas), the threaded hole at encapsulating package two ends is sealed.
After (5) two hours, will be with
the threaded block of through hole takes out, and with the M12 sealing plate being highly 5mm, screw thread coats epoxy resin glue, is blocked by the M12 threaded hole of two on encapsulating package.
Through verification experimental verification, use the method by the travelling-wave tubes of this composition proportion and technique encapsulation, use for some time and after stryctyrak test, the step transition waveguide of travelling-wave tubes occurs that crackle causes travelling-wave tubes to be scrapped in travelling-wave tubes; The traveling wave tube structure intensity of the encapsulation of explanation the method thus can not meet the demands.
Embodiment 7
Travelling-wave tubes encapsulation material, is made up of isocyanic ester, polyethers ring; Isocyanic ester purity is 99-99.5%; Polyethers is made up of polyethers, silicone oil and water, and the content of its polyethers is 98-98.5%.
This travelling-wave tubes encapsulation material fabrication process and packaging process are:
(1) isocyanic ester and polyethers are left in the ducted clout of dosing apparatus to release, after then isocyanic ester and polyethers being heated to 50 DEG C ± 2 DEG C by dosing apparatus, carry out insulation 5 ± 1min;
(2) passage A(isocyanic ester is set) 20ml/s, channel B (polyethers) 20ml/s, setup times 15 seconds;
(3) the encapsulation encapsulating package residue of travelling-wave tubes can packing space be 1.4 cubic decimeters, respectively there is a M12 threaded hole at encapsulating package two ends, injection muzzle is aimed at the threaded hole collecting one end near travelling-wave tubes, then starts filling gun, packaged material is expelled in the encapsulating package of travelling-wave tubes; After 11 seconds, equipment stops automatically.
(4) be highly 5mm M12 in the middle of have a diameter to be
the threaded block of through hole (
through hole be used for the eliminating of encapsulating package internal gas), the threaded hole at encapsulating package two ends is sealed.
After (5) two hours, will be with
the threaded block of through hole takes out, and with the M12 sealing plate being highly 5mm, screw thread coats epoxy resin glue, is blocked by the M12 threaded hole of two on encapsulating package.
Through verification experimental verification, use the travelling-wave tubes that the method encapsulates by this composition proportion and technique, because chemical reaction causes too rapidly resultant to break through the face of shell docking in the process of travelling-wave tubes encapsulation, and flow to outside pipe, destroy tube shell of traveling wave tube encapsulation to bubble-tight requirement.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. a method for packing for travelling-wave tubes, is characterized in that: its packaged material used is mixed by isocyanic ester and polyethers and forms, containing the isocyanic ester of 45 ~ 55 parts by volume in the packaged material of wherein every 100 parts by volume,
This method for packing comprises the following steps:
(1), after the container filling isocyanic ester and polyethers being respectively heated to 40 DEG C ± 2 DEG C, insulation 5 ± 1min is carried out;
(2) isocyanic ester and polyethers output are carried out being uniformly mixed to form packaged material, the flow of isocyanic ester is 20ml/s, and the flow of polyethers is 20ml/s, and the currency is 11 seconds;
(3) respectively there is a threaded hole at the two ends of the encapsulating package of this travelling-wave tubes, this packaged material is injected in a threaded hole of the encapsulating package of this travelling-wave tubes, gas in this encapsulating package is overflowed from another threaded hole, and this packaged material fills the whole encapsulating package of this travelling-wave tubes;
(4) with the threaded block offering a through hole, the threaded hole at these encapsulating package two ends is sealed;
After (5) two hours, the threaded block with through hole is taken out, the threaded sealing plate of apparatus and screw thread scribbles epoxy resin glue, the threaded hole of two on this encapsulating package is blocked.
2. the method for travelling-wave tubes according to claim 1, is characterized in that: the purity of this isocyanic ester is 99-99.5%; In polyethers, the content of this polyethers is 98-98.5%.
3. the method for travelling-wave tubes according to claim 2, is characterized in that: in polyethers, and the content of this polyethers is 98.5%, and the content of silicone oil is 1%, and the content of water is 0.5%.
4. the method for travelling-wave tubes according to claim 1, is characterized in that: containing the isocyanic ester of 50 parts by volume in the packaged material of every 100 parts by volume.
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| CN201310233394.0A CN103333307B (en) | 2013-06-13 | 2013-06-13 | Packaging material of traveling wave tube and packaging method of traveling wave tube |
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| CN104157533B (en) * | 2014-09-01 | 2016-08-24 | 安徽华东光电技术研究所 | Glass tube vacuum packaging method for traveling wave tube cathode |
| CN104465271B (en) * | 2014-11-25 | 2017-03-15 | 安徽华东光电技术研究所 | Glass tube for vacuum packaging and processing method thereof |
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|---|---|---|---|---|
| CN1087662A (en) * | 1992-10-30 | 1994-06-08 | 美国3M公司 | Crosslinked polyether polyol sealant |
| CN1365370A (en) * | 2000-01-24 | 2002-08-21 | 三井化学株式会社 | Polyurethane resin composition for sealing optoelectric conversion devices |
| CN1986641A (en) * | 2005-12-19 | 2007-06-27 | 比亚迪股份有限公司 | Encapsulating polyurethane material recipe and encapsulating material containing said recipe |
| CN102174171A (en) * | 2011-01-12 | 2011-09-07 | 厦门誉匠复合材料有限公司 | Bubble-free yellowing resistant polyurethane electronic potting adhesive composition and preparation method thereof |
-
2013
- 2013-06-13 CN CN201310233394.0A patent/CN103333307B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1087662A (en) * | 1992-10-30 | 1994-06-08 | 美国3M公司 | Crosslinked polyether polyol sealant |
| CN1365370A (en) * | 2000-01-24 | 2002-08-21 | 三井化学株式会社 | Polyurethane resin composition for sealing optoelectric conversion devices |
| CN1986641A (en) * | 2005-12-19 | 2007-06-27 | 比亚迪股份有限公司 | Encapsulating polyurethane material recipe and encapsulating material containing said recipe |
| CN102174171A (en) * | 2011-01-12 | 2011-09-07 | 厦门誉匠复合材料有限公司 | Bubble-free yellowing resistant polyurethane electronic potting adhesive composition and preparation method thereof |
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| Title |
|---|
| 微波功率管壳封装技术;电子部第五十五所;《中国电子学会生产技术学分会电子封装专业委员会一九九七年度学术年会论文集》;19971101;第1-4页 * |
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