JPH09330678A - Manufacture of mold x-ray tube - Google Patents
Manufacture of mold x-ray tubeInfo
- Publication number
- JPH09330678A JPH09330678A JP17184996A JP17184996A JPH09330678A JP H09330678 A JPH09330678 A JP H09330678A JP 17184996 A JP17184996 A JP 17184996A JP 17184996 A JP17184996 A JP 17184996A JP H09330678 A JPH09330678 A JP H09330678A
- Authority
- JP
- Japan
- Prior art keywords
- ray tube
- resin
- molded
- glass
- molding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 229920005989 resin Polymers 0.000 claims abstract description 41
- 239000011347 resin Substances 0.000 claims abstract description 41
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 17
- 238000000465 moulding Methods 0.000 claims abstract description 16
- 230000009477 glass transition Effects 0.000 claims abstract description 6
- 239000011521 glass Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 6
- 238000009413 insulation Methods 0.000 abstract description 4
- 238000004880 explosion Methods 0.000 abstract description 3
- 230000002542 deteriorative effect Effects 0.000 abstract 1
- 239000003822 epoxy resin Substances 0.000 description 4
- 229920000647 polyepoxide Polymers 0.000 description 4
- 239000011342 resin composition Substances 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
Landscapes
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ガラス製構造物の
薄肉部分に対する応力を緩和し、クラックを防止したモ
ールドＸ線管の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a molded X-ray tube in which stress on a thin portion of a glass structure is relaxed and cracks are prevented.
【０００２】[0002]
【従来の技術】従来の技術では、Ｘ線発生源として使用
されるＸ線管は、それを油で絶縁し、また絶縁油の熱容
量と対流を利用しＸ線管の冷却を行っていた。2. Description of the Related Art In the prior art, an X-ray tube used as an X-ray generation source is insulated with oil, and the heat capacity and convection of the insulating oil are used to cool the X-ray tube.
【０００３】これに代わり熱硬化性樹脂でＸ線管をモー
ルドする方法がある。この方法の利点としては、絶縁
性が向上するため機器がコンパクトになる、防爆対策
ができる、意匠が自在化される等のことが挙げられ
る。また、熱伝導率の高い樹脂を使用してモールドする
ことにより、発熱分を積極的に外部に引き出すことがで
きる。Alternatively, there is a method of molding an X-ray tube with a thermosetting resin. The advantages of this method are that the device is compact because the insulation is improved, explosion-proof measures can be taken, and the design can be made flexible. Further, the heat generation can be positively taken out by molding by using a resin having a high thermal conductivity.
【０００４】[0004]
【発明が解決しようとする課題】しかし、熱硬化性樹脂
でガラス製構造物をモールドする際には、樹脂が硬化す
るときに発生する硬化収縮と、樹脂とガラスとの線膨張
係数の違いによって成形温度から常温への冷却時に発生
する熱収縮とで、ガラス製構造物にはかなりの応力が発
生し、クラックが生じるという欠点があった。このよう
に高電圧が印加されるＸ線管をこれらの熱硬化性樹脂で
モールドすると、Ｘ線管に発生したクラックによりかえ
って電気特性が低下するという欠点があった。これらの
理由が、上記のような利点があるにもかかわらず、Ｘ線
管は熱硬化性樹脂でモールドすることができず、上記の
ように絶縁油で絶縁されていた。However, when molding a glass structure with a thermosetting resin, due to the curing shrinkage that occurs when the resin cures and the difference in the linear expansion coefficient between the resin and the glass. Due to the heat shrinkage that occurs during cooling from the molding temperature to room temperature, the glass structure has a drawback in that considerable stress is generated and cracks occur. Thus, when an X-ray tube to which a high voltage is applied is molded with these thermosetting resins, there is a drawback that the electrical characteristics are rather deteriorated by the cracks generated in the X-ray tube. Despite these reasons, the X-ray tube cannot be molded with the thermosetting resin, but is insulated with the insulating oil as described above.
【０００５】本発明は、上記の欠点を解消するためにな
されたもので、ガラス製構造物におけるクラックを防止
して電気特性を低下させることなく、絶縁性、防爆性、
意匠性に優れたモールドＸ線管の製造方法を提供しよう
とするものである。The present invention has been made in order to solve the above-mentioned drawbacks, and it is possible to prevent cracks in a glass structure without lowering electrical characteristics, and to provide insulation, explosion proof, and
An object of the present invention is to provide a method for manufacturing a molded X-ray tube having excellent design.
【０００６】[0006]
【課題を解決するための手段】本発明者らは、上記の目
的を達成するために鋭意研究を重ねた結果、特に複雑な
形状をした陰極部における応力を緩和させるために、陰
極部のみを予め可とう性樹脂でモールドすることによっ
て、上記の目的を達成できることを見いだし、本発明を
完成したものである。Means for Solving the Problems As a result of intensive studies to achieve the above-mentioned object, the present inventors have found that only the cathode portion is relieved in order to relieve the stress in the cathode portion having a particularly complicated shape. It was found that the above object can be achieved by molding in advance with a flexible resin, and the present invention has been completed.
【０００７】即ち、本発明は、ガラス製Ｘ線管を熱硬化
性樹脂でモールドするモールドＸ線管の製造方法におい
て、ガラス製バルブが複雑な形状を有する陰極部のみを
予め可とう性樹脂でモールドした後、Ｘ線管全体を熱硬
化性樹脂でモールドすることを特徴とするモールドＸ線
管の製造方法であり、また、陰極部をモールドする可と
う性樹脂のガラス転移温度が、60℃以下であるモールド
Ｘ線管の製造方法である。That is, according to the present invention, in a method of manufacturing a molded X-ray tube in which a glass X-ray tube is molded with a thermosetting resin, only the cathode portion of the glass bulb having a complicated shape is previously made of a flexible resin. A method of manufacturing a molded X-ray tube, characterized in that the entire X-ray tube is molded with a thermosetting resin after molding, and the glass transition temperature of the flexible resin for molding the cathode part is 60 ° C. The following is a method of manufacturing a molded X-ray tube.
【０００８】以下、本発明を詳細に説明する。The present invention will be described in detail below.
【０００９】本発明に用いる可とう性樹脂としては、ゴ
ム状であり、Ｘ線管全体をモールドする熱硬化性樹脂に
比較して可とう性であればよく、特に限定されるもので
はないが、そのガラス転移温度が60℃以下のものである
のが好ましい。可とう性樹脂はそれ単独、又は他の成分
を含んで樹脂組成物であってもよい。可とう性樹脂の具
体的なものとして、例えばＴＣＧ１８５９（変性エポキ
シ系、東芝ケミカル社製、商品名）等が挙げられ、これ
らは単独又は2 種以上混合して使用することができる。
可とう性樹脂の、ガラス転移温度が60℃を超えると、可
とう性が不足し、クラックが発生しやすくなり好ましく
ない。The flexible resin used in the present invention is rubber-like and is not particularly limited as long as it is flexible as compared with the thermosetting resin that molds the entire X-ray tube. The glass transition temperature thereof is preferably 60 ° C. or lower. The flexible resin may be a resin composition alone or containing other components. Specific examples of the flexible resin include TCG1859 (modified epoxy type, manufactured by Toshiba Chemical Co., trade name) and the like, and these can be used alone or in combination of two or more kinds.
If the glass transition temperature of the flexible resin exceeds 60 ° C., the flexibility becomes insufficient and cracks easily occur, which is not preferable.
【００１０】本発明に用いる熱硬化性樹脂としては、通
常、注形用樹脂として使用されるものであればよく、特
に限定されるものではない。具体的な熱硬化性樹脂とし
て、例えばエポキシ樹脂、シリコーン樹脂およびこれら
の樹脂組成物等が挙げられ、これらは単独又は2 種以上
混合して使用することができる。熱硬化性樹脂の硬化
剤、硬化促進剤としては、上記の樹脂用として使用され
るものであれば特に限定されるものではなく、広く使用
することができる。The thermosetting resin used in the present invention is not particularly limited as long as it is usually used as a casting resin. Specific thermosetting resins include, for example, epoxy resins, silicone resins and resin compositions thereof, and these can be used alone or in admixture of two or more. The curing agent and curing accelerator for the thermosetting resin are not particularly limited as long as they are used for the above resins, and can be widely used.
【００１１】ガラス製Ｘ線管の陰極部のみを可とう性樹
脂でモールドし、その後、Ｘ線管全体を熱硬化性樹脂で
モールドしてモールドＸ線管を製造することができる。It is possible to manufacture a molded X-ray tube by molding only the cathode portion of the glass X-ray tube with a flexible resin and then molding the entire X-ray tube with a thermosetting resin.
【００１２】本発明のモールドＸ線管の製造方法によれ
ば、可とう性樹脂でＸ線管の陰極部のみをモールドする
ことによって、特に複雑な形状の陰極部の応力を緩和
し、クラックの発生を防止することができる。According to the method for producing a molded X-ray tube of the present invention, by molding only the cathode portion of the X-ray tube with a flexible resin, the stress of the cathode portion having a particularly complicated shape is relieved and cracks are formed. Occurrence can be prevented.
【００１３】[0013]
【発明の実施の形態】次に、本発明の実施例を図面を用
いて説明するが、本発明は、この実施例によって限定さ
れるものではない。BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of the present invention will be described with reference to the drawings, but the present invention is not limited to this embodiment.
【００１４】実施例 図１は、本発明のモールドＸ線管の断面図である。EXAMPLE FIG. 1 is a sectional view of a molded X-ray tube of the present invention.
【００１５】図１において、１はＸ線管のガラスバルブ
で、バルブ内部の構造は省略されているが、バルブの右
端は陰極部であってステム構造となっている。バルブの
左の部分は陽極部であってバルブ外側にステーターコイ
ル４が固定され、バルブ内の回転子と誘導電動機を構成
し、回転子に直結されたターゲットを回転させる構造に
なっている。なお、３は高圧コネクターであり、６はタ
ーゲットから放射されたＸ線の照射口である。In FIG. 1, reference numeral 1 denotes a glass bulb for an X-ray tube, the structure inside the bulb is omitted, but the right end of the bulb is a cathode portion having a stem structure. The left part of the valve is the anode part, and the stator coil 4 is fixed to the outside of the valve. The stator coil 4 constitutes the rotor inside the valve and the induction motor, and the target directly connected to the rotor is rotated. Reference numeral 3 is a high-voltage connector, and 6 is an irradiation port for X-rays emitted from the target.
【００１６】可とう性樹脂２として、エポキシ樹脂系の
ＴＣＧ１８５９［東芝ケミカル社製、商品名、ガラス転
移温度2 ℃、硬度40（ｓｈｏｒｅ Ｄ，25℃）］を準備
し、ガラス製Ｘ線管１の陰極部に50℃で注入し、100 ℃
で硬化させた。次に高熱伝導性の熱硬化性樹脂５とし
て、エポキシ樹脂系のＴＣＧ１８３７（東芝ケミカル社
製、商品名）をＸ線管１が入っている円筒状の型に樹脂
温度70℃で注入し、高圧コネクター３、ステーターコイ
ル４とともに全体を100 ℃で硬化させて高熱伝導樹脂５
でモールドした。その後、常温まで冷却し離型を行っ
て、モールドＸ線管を製造した。このモールドした高熱
伝導樹脂５の一部にはＸ線がでる照射口６があり、その
部分は透明なエポキシ樹脂系樹脂で覆われている。As the flexible resin 2, an epoxy resin-based TCG1859 [manufactured by Toshiba Chemical Co., trade name, glass transition temperature 2 ° C., hardness 40 (shore D, 25 ° C.)] is prepared, and a glass X-ray tube 1 is prepared. Injection at 50 ℃ into the cathode part of 100 ℃
And cured. Next, as the thermosetting resin 5 having high thermal conductivity, epoxy resin-based TCG1837 (manufactured by Toshiba Chemical Co., trade name) is injected into the cylindrical mold containing the X-ray tube 1 at a resin temperature of 70 ° C., and high pressure is applied. The high heat conductive resin 5 is hardened at 100 ℃ together with the connector 3 and the stator coil 4.
Molded in. Then, it was cooled to room temperature and released from the mold to manufacture a molded X-ray tube. A part of the molded high thermal conductive resin 5 has an irradiation port 6 through which X-rays are emitted, and that part is covered with a transparent epoxy resin resin.
【００１７】こうして製造されたモールドＸ線管は、Ｘ
線管にクラックの発生はなく、電気特性、熱的特性等の
諸特性も油絶縁のＸ線管と同等以上の特性を示した。The molded X-ray tube manufactured in this way is
There were no cracks in the wire tube, and various characteristics such as electrical characteristics and thermal characteristics were equal to or higher than those of the oil-insulated X-ray tube.
【００１８】[0018]
【発明の効果】以上の説明から明らかなように、本発明
のモールドＸ線管の製造方法によれば、陰極部の応力を
緩和し、クラックを防止し、絶縁性、防爆性、意匠性に
優れたモールドＸ線管を製造することができる。As is apparent from the above description, according to the method of manufacturing a molded X-ray tube of the present invention, stress in the cathode portion is relieved, cracks are prevented, and insulation, explosion proof and design are improved. An excellent molded X-ray tube can be manufactured.
【図１】本発明のモールドＸ線管の断面図である。FIG. 1 is a sectional view of a molded X-ray tube according to the present invention.
１ ガラス製Ｘ線管 ２ 可とう性樹脂 ３ 高圧コネクター ４ ステーターコイル ５ 熱硬化性樹脂 ６ Ｘ線照射口 1 Glass X-ray tube 2 Flexible resin 3 High-voltage connector 4 Stator coil 5 Thermosetting resin 6 X-ray irradiation port
Claims (2)
ドするモールドＸ線管の製造方法において、ガラス製バ
ルブが複雑な形状を有する陰極部のみを予め可とう性樹
脂でモールドした後、Ｘ線管全体を熱硬化性樹脂でモー
ルドすることを特徴とするモールドＸ線管の製造方法。1. A method for manufacturing a molded X-ray tube, comprising molding a glass X-ray tube with a thermosetting resin, wherein a glass bulb is pre-molded with a flexible resin only for a cathode portion having a complicated shape, A method for manufacturing a molded X-ray tube, which comprises molding the entire X-ray tube with a thermosetting resin.
ラス転移温度が、60℃以下である請求項１記載のモール
ドＸ線管の製造方法。2. The method for producing a molded X-ray tube according to claim 1, wherein the glass transition temperature of the flexible resin for molding the cathode portion is 60 ° C. or lower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17184996A JPH09330678A (en) | 1996-06-11 | 1996-06-11 | Manufacture of mold x-ray tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17184996A JPH09330678A (en) | 1996-06-11 | 1996-06-11 | Manufacture of mold x-ray tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09330678A true JPH09330678A (en) | 1997-12-22 |
Family
ID=15930920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17184996A Pending JPH09330678A (en) | 1996-06-11 | 1996-06-11 | Manufacture of mold x-ray tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09330678A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007528690A (en) * | 2004-03-11 | 2007-10-11 | バリアン・メディカル・システムズ・テクノロジーズ・インコーポレイテッド | Encapsulated stator assembly for X-ray tube |
-
1996
- 1996-06-11 JP JP17184996A patent/JPH09330678A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007528690A (en) * | 2004-03-11 | 2007-10-11 | バリアン・メディカル・システムズ・テクノロジーズ・インコーポレイテッド | Encapsulated stator assembly for X-ray tube |
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