JPH0463150B2 - - Google Patents
Info
- Publication number
- JPH0463150B2 JPH0463150B2 JP61310623A JP31062386A JPH0463150B2 JP H0463150 B2 JPH0463150 B2 JP H0463150B2 JP 61310623 A JP61310623 A JP 61310623A JP 31062386 A JP31062386 A JP 31062386A JP H0463150 B2 JPH0463150 B2 JP H0463150B2
- Authority
- JP
- Japan
- Prior art keywords
- furnace
- blackening
- heated
- metal frame
- materials
- 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.)
- Expired - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 22
- 229910052751 metal Inorganic materials 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 15
- 230000001590 oxidative effect Effects 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 description 10
- 238000001816 cooling Methods 0.000 description 9
- 238000002791 soaking Methods 0.000 description 7
- 239000013077 target material Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910000655 Killed steel Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Furnace Charging Or Discharging (AREA)
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は、黒化炉を用いてブラウン管用シヤド
ウマスク、そのサポートフレーム、更にはインナ
シールドの如き被熱材を炉内搬送しつつ黒化処理
する際の、該被熱材の搬送方法に関する。[Detailed Description of the Invention] <Industrial Application Field> The present invention uses a blackening furnace to blacken heat-receiving materials such as a cathode ray tube shadow mask, its support frame, and inner shield while transporting them inside the furnace. The present invention relates to a method for transporting the heated material.
シヤドウマスク形カラーテレビやOA機器デイ
スプレーのブラウン管には、パネルとフアンネル
との間にサポートフレームに溶接させたシヤドウ
マスクが組込まれている。そしてこの種のシヤド
ウマスクは、電子ビームの乱反射、シヤドウマス
クのドーミング、赤錆の発生等の防止を目的とし
て、サポートフレームやインナシールドも含めそ
の表面に黒化膜（Fe3O4を主とする酸化膜）を形
成させたものが使用されている。 Shadow mask type color televisions and OA equipment display cathode ray tubes incorporate a shadow mask welded to a support frame between the panel and funnel. This type of shadow mask has a blackened film (an oxide film mainly composed of Fe 3 O 4 ) is used.
ところで、シヤドウマスクやそのサポートフレ
ーム等の被熱材表面へ黒化膜を形成させる際に利
用される連続式の黒化炉では、被熱材を炉内搬送
しつつ、雰囲気ガス下に、シヤドウマスクやその
サポートフレーム等を580℃前後で加熱・均熱処
理し、引続き100℃程度まで冷却処理しているが、
かかる連続黒化処理において被熱材の搬送方法に
は、被熱材の表面に所定膜厚の緻密な黒化膜を作
業性良く経済的に安定して形成させ得ることが要
請される。 By the way, in a continuous blackening furnace used to form a blackening film on the surface of a heat target material such as a shadow mask or its support frame, the shadow mask or the like is placed under atmospheric gas while the heat target material is transported through the furnace. The support frame and other parts are heated and soaked at around 580℃, and then cooled to around 100℃.
In such a continuous blackening treatment, the method for transporting the heated material is required to be able to form a dense blackened film of a predetermined thickness on the surface of the heated material with good workability and economical stability.
本発明はかかる要請に応える被熱材の搬送方法
に関するものである。 The present invention relates to a method for transporting a heated material that meets such demands.
〈従来の技術、その問題点〉
従来、シヤドウマスクやそのサポートフレーム
等の被熱材表面へ黒化膜を形成させる際に利用さ
れる連続式の黒化炉では、被熱材の搬送方法とし
て、メツシユベルトのコンベヤによる搬送が行な
われている。これは、炉内と炉外とを無端で回転
するメツシユベルト上に被熱材を載置して搬送す
る方法であり、この状態で被熱材を炉内搬送しつ
つ、雰囲気ガス下に580℃前後で加熱・均熱処理
し、引続き100℃程度まで冷却処理して、該被熱
材の表面に黒化膜を形成させるのである。<Conventional technology and its problems> Conventionally, in a continuous blackening furnace used to form a blackening film on the surface of a heat target material such as a shadow mask or its support frame, as a method of transporting the heat target material, Conveyance is carried out by a mesh belt conveyor. In this method, the material to be heated is placed on a mesh belt that rotates endlessly between the inside and outside of the furnace, and the material to be heated is placed on a mesh belt that rotates endlessly between the inside and outside of the furnace. A heating and soaking process is performed before and after the heating process, followed by a cooling process to about 100°C to form a blackened film on the surface of the heated material.
ところが、上記従来法には、次のような種々の
問題点がある。 However, the above conventional method has various problems as follows.
１ メツシユベルト上へ例えばシヤドウマスクを
重ならないように１枚づつ載置し、黒化処理後
にまたそれらを１枚づつ取出さなければならな
いため、作業性及び生産性が悪過ぎる。メツシ
ユベルト上へシヤウドマスクを重ねて積載する
と、重なり合つている部分に黒化膜が形成され
難く、そのため該部分で赤錆発生等の不都合を
引き起こし、逆に重なり合つている部分へ充分
な黒化膜を形成させようとすると、重なり合つ
ていない部分に形成される黒化膜の膜厚が厚く
なり過ぎて、そのような黒化膜は剥離し易く、
またそのような黒化膜はシヤドウマスクをパネ
ルとフアンネルとの間へ組込む際に溶接不良を
引き起こす。そこで、作業性の悪さを我慢し
て、シヤドウマスクを上記のように１枚づつ取
扱つているのが実情なのである。そして、かか
る作業性の悪さは、黒化処理に先立つてシヤド
ウマスクを洗浄処理する際も同様に問題とな
る。1. For example, shadow masks must be placed one by one on the mesh belt so as not to overlap, and then taken out one by one after the blackening process, resulting in poor workability and productivity. When shadow masks are stacked on top of each other on a mesh belt, it is difficult to form a blackening film on the overlapping parts, which may cause problems such as red rust, and conversely, it is difficult to form a blackening film on the overlapping parts. When attempting to form the blackened film, the thickness of the blackened film formed on the non-overlapping parts becomes too thick, and such a blackened film is likely to peel off.
Moreover, such a blackened film causes welding defects when the shadow mask is assembled between the panel and the funnel. Therefore, the reality is that shadow masks are handled one by one as described above, putting up with the poor workability. Such poor workability also poses a problem when cleaning the shadow mask prior to the blackening process.
２ 炉内と炉外とを無端で回転するメツシユベル
トを用いるため、該メツシユベルトは炉内での
加熱と炉外での冷却とを繰返すこととなり、こ
れによる熱エネルギの無駄が大きい。2. Since a mesh belt that rotates endlessly between the inside and outside of the furnace is used, the mesh belt is repeatedly heated inside the furnace and cooled outside the furnace, resulting in a large waste of thermal energy.
３ 上記のようなメツシユベルトを用いる関係で
黒化炉の装入側と装出側は開放になつており、
それらを横置き煙道状に絞り込んでも、該開放
部分からの漏出があるために雰囲気ガスを多量
に必要とする。3 Due to the use of mesh belts as described above, the charging and unloading sides of the blackening furnace are open.
Even if they are narrowed down to form a horizontal flue, a large amount of atmospheric gas is required due to leakage from the open portion.
〈発明が解決しようとする問題点、その解決手
段〉
本発明は、叙上の如き従来の問題点を解決し
て、前述した要請に応える、改良された搬送方法
を提供するものである。<Problems to be Solved by the Invention and Means for Solving the Problems> The present invention solves the conventional problems as described above and provides an improved conveyance method that meets the above-mentioned demands.
しかして本発明は、
黒化炉を用いてブラウン管用シヤドウマスクや
そのサポートフレーム等の被熱材を炉内搬送しつ
つ表面黒化膜形成処理するに際し、それぞれの雰
囲気が開閉可能な扉で遮断され得る前室、黒化炉
本体及び後室がこの順で連結された黒化炉内を、
発熱形ガスを含む酸化性ガス雰囲気下に、両側の
受片へ装架することにより上下で所定間隔を空け
て多段に被熱材を積載した金枠をローラコンベヤ
で支持しつつ搬送することを特徴とする黒化処理
における被熱材の搬送方法に係る。 Accordingly, the present invention provides a method for forming a blackening film on the surface of heated materials such as a cathode ray tube shadow mask and its support frame while transporting them through the furnace using a blackening furnace. The inside of the blackening furnace, in which the front chamber, the blackening furnace main body, and the rear chamber are connected in this order,
Under an oxidizing gas atmosphere containing exothermic gas, metal frames loaded with materials to be heated in multiple stages at a predetermined interval above and below can be transported while being supported by a roller conveyor by being mounted on receiving pieces on both sides. The present invention relates to a method for conveying a heated material in a characteristic blackening process.
本発明において肝要な点は、シヤドウマスクや
そのサポートフレーム等の被熱材の表面に所定膜
厚の緻密な黒化膜を作業性良く経済的に形成させ
るために、それぞれの雰囲気が開閉可能な扉で遮
断され得る前室及び黒化炉本体並びに後室がこの
順で連結された黒化炉と、両側の受片へ装架する
ことにより上下で所定間隔を空けて多段に被熱材
を積載し得る金枠とを用い、該金枠に例えばシヤ
ドウマスクを上下で所定間隔を空けて多段に積載
した状態で、発熱形ガスを含む酸化性ガス雰囲気
下の黒化炉内を、ローラコンベヤで支持しつつ搬
送する処にある。 An important point in the present invention is that each atmosphere can be opened and closed in order to form a dense blackened film of a predetermined thickness on the surface of heat-receiving materials such as a shadow mask and its support frame in an efficient and economical manner. A blackening furnace in which the front chamber, the blackening furnace main body, and the rear chamber, which can be shut off by A roller conveyor is used to support the inside of the blackening furnace in an oxidizing gas atmosphere containing exothermic gas, with shadow masks stacked in multiple stages at predetermined intervals above and below on the metal frame. It is in the process of being transported.
以下、図面に基いて本発明の構成を更に詳細に
説明する。 Hereinafter, the configuration of the present invention will be explained in more detail based on the drawings.
〈実施例〉
第１図は本発明の一実施状態を示す全体正面
図、第２図はその部分拡大側面図である。加熱・
均熱帯２１と冷却帯２２とを備える黒化炉本体１
１には、その装入側に駆動装置３１で開閉可能な
扉４１が、またその装出側に駆動装置３２で開閉
可能な扉４２がそれぞれ装備されている。黒化炉
本体１１にバルブ５１を介してガス発生装置６１
から発熱形ガスが導入され、これによる炉内雰囲
気が扉４１，４２で遮断される構成である。黒化
炉本体１１の装入側には扉４１を介して前室２３
が、また装出側には扉４２を介して後室２４がそ
れぞれ連結されていて、前室２３及び後室２４の
各室内雰囲気はバルブ５２，５３を介してガス発
生装置６１から導入される発熱形ガスで置換され
るようになつており、前室２３の更に装入側には
駆動装置３３で開閉可能な扉４３を介して装入テ
ーブル２５が、また後室２４の更に装出側には駆
動装置３４で開閉可能な扉４４を介して装出テー
ブル２６がそれぞれ付設されている。そして、装
入テーブル２５〜前室２３〜黒化炉本体１１（加
熱・均熱帯２１〜冷却帯２２）〜後室２４〜装出
テーブル２６に亙つてローラコンベヤ７１装備さ
れている。<Example> FIG. 1 is an overall front view showing one embodiment of the present invention, and FIG. 2 is a partially enlarged side view thereof. heating·
Blackening furnace body 1 comprising a soaking zone 21 and a cooling zone 22
1 is equipped with a door 41 that can be opened and closed by a drive device 31 on its loading side, and a door 42 that can be opened and closed by a drive device 32 on its unloading side. A gas generator 61 is connected to the blackening furnace main body 11 via a valve 51.
Exothermic gas is introduced from the furnace, and the atmosphere in the furnace caused by this gas is shut off by doors 41 and 42. A front chamber 23 is connected to the charging side of the blackening furnace main body 11 through a door 41.
However, the rear chamber 24 is connected to the discharge side through a door 42, and the atmosphere in each of the front chamber 23 and the rear chamber 24 is introduced from a gas generator 61 through valves 52 and 53. A charging table 25 is installed on the charging side of the front chamber 23 via a door 43 that can be opened and closed by a drive device 33, and a charging table 25 is installed on the charging side of the rear chamber 24. A loading table 26 is attached to each through a door 44 that can be opened and closed by a drive device 34. A roller conveyor 71 is provided from the charging table 25 to the front chamber 23 to the blackening furnace main body 11 (heating/soaking zone 21 to cooling zone 22) to the rear chamber 24 to the loading table 26.
図面では、金枠８１の両内側へ突設された短尺
の受片８２へ処理対象であるシヤドウマスクＡを
上下に所定間隔を空けて多段に積載し、該金枠８
１をローラコンベヤ７１に載置して、装入テーブ
ル２５→前室２３→黒化炉本体１１（加熱・均熱
帯２１→冷却帯２２）→後室２４→装出テーブル
２６の順で搬送している状態を示しているが、こ
の実施状態を、材質がアルミキルド鋼であるシヤ
ドウマスクの場合を例に挙げてより具体的に説明
すると、次の通りである。 In the drawing, the shadow masks A to be processed are stacked in multiple stages at predetermined intervals vertically on short receiving pieces 82 protruding inwardly from both sides of the metal frame 81.
1 is placed on the roller conveyor 71 and conveyed in the order of charging table 25 → front chamber 23 → blackening furnace main body 11 (heating/soaking zone 21 → cooling zone 22) → rear chamber 24 → loading table 26. However, this implementation state will be explained in more detail using the case of a shadow mask made of aluminum killed steel as an example.
先ず、第２図で例示するように、シヤドウマス
クＡを両側の受片８２へ装架することにより上下
で所定間隔を空けて金枠８１へ多段に積載する。
そして金枠８１をローラコンベヤ７１へ載置し、
装入テーブル２５から前室２３へと装入して、扉
４３を閉じる。前室２３内をバルブ５２を介して
導入する発熱形ガスで置換した後、扉４１を開
き、金枠８１を黒化炉本体１１へと装入して、扉
４１を閉じる。黒化炉本体１１内において、金枠
８１に積載されたシヤドウマスクＡをローラコン
ベヤ７１で炉内搬送しつつ、バルブ５１を介して
発熱形ガスを導入することにより形成される1.5
〜2.0％程度のCO含有酸化性ガス雰囲気下に、加
熱・均熱帯２１で580℃前後に熱処理し、引き続
き冷却帯２２で100℃程度まで冷却する。冷却後、
予め後室２４内をバルブ５３を介して導入する発
熱形ガスで置換しておいてから、扉４２を開き、
金枠８１を後室２４へと装入して、扉４２を閉じ
る。最後に、扉４４を開き、金枠８１を装出テー
ブル２６へと抽出して、扉４４を閉じる。以下、
上記操作の連続する繰返しである。説明を省略す
るが、シヤドウマスクの材質との関係で、加熱・
均熱帯へ発熱形ガスに加えて例えばスチームを導
入し、また冷却帯へ発熱形ガスに加えて例えば空
気を導入することもできる。 First, as illustrated in FIG. 2, the shadow masks A are mounted on the receiving pieces 82 on both sides, and stacked on the metal frame 81 in multiple stages with predetermined intervals above and below.
Then, the metal frame 81 is placed on the roller conveyor 71,
After loading from the loading table 25 into the front chamber 23, the door 43 is closed. After replacing the inside of the front chamber 23 with exothermic gas introduced through the valve 52, the door 41 is opened, the metal frame 81 is inserted into the blackening furnace main body 11, and the door 41 is closed. 1.5 is formed in the blackening furnace main body 11 by introducing exothermic gas through the valve 51 while conveying the shadow mask A loaded on the metal frame 81 inside the furnace by the roller conveyor 71.
In an oxidizing gas atmosphere containing about 2.0% CO, heat treatment is performed in a heating/soaking zone 21 to about 580°C, and then cooled to about 100°C in a cooling zone 22. After cooling,
After replacing the inside of the rear chamber 24 with exothermic gas introduced through the valve 53, the door 42 is opened.
The metal frame 81 is inserted into the rear chamber 24, and the door 42 is closed. Finally, the door 44 is opened, the metal frame 81 is extracted onto the loading table 26, and the door 44 is closed. below,
This is a continuous repetition of the above operations. Although the explanation is omitted, due to the material of the shadow mask, heating and
For example, steam may be introduced into the soaking zone in addition to the exothermic gas, and air, for example, may be introduced into the cooling zone in addition to the exothermic gas.
〈発明の効果〉
既に明らかなように、以上説明した本発明に
は、次のような優れた効果がある。<Effects of the Invention> As is already clear, the present invention described above has the following excellent effects.
(1) 金枠へ被熱材を積載し、まとめて取扱うた
め、作業性及び生産性が良い。そして、かかる
作業性の良さは、黒化処理に先立つて行なわれ
る洗浄処理においても同様に発揮される。(1) Workability and productivity are good because the heated materials are loaded onto the metal frame and handled all at once. Such good workability is also exhibited in the cleaning treatment performed prior to the blackening treatment.
(2) 被熱材を金枠でまとめて取扱い、しかも該金
枠を搬送するローラコンベヤは炉内において常
時同じ温度条件下に置かれるため、炉内と炉外
とを無端で回転して加熱と冷却とを繰返すメツ
シユベルトで被熱材を１個づつ搬送する場合に
比べて、単位処理量当りの熱エネルギの無駄が
少ない。(2) The materials to be heated are handled together in a metal frame, and the roller conveyor that transports the metal frame is always kept under the same temperature condition inside the furnace, so it rotates endlessly inside and outside the furnace to heat it. Compared to the case where heated materials are conveyed one by one using a mesh belt that repeatedly performs cooling and heating, there is less waste of thermal energy per unit throughput.
(3) 被熱材をまとめて取扱う金枠をローラコンベ
ヤで搬送し、黒化炉本体の炉内をその装入側と
装出側に装備した扉で遮断するため、必要な雰
囲気ガスが少なくてよい。(3) The metal frame that handles the materials to be heated is transported by a roller conveyor, and the inside of the blackening furnace is shut off by doors installed on the charging and unloading sides, which reduces the amount of atmospheric gas required. It's fine.
(4) 金枠に積載された被熱材は上下で所定間隔が
空けられており、しかも炉内雰囲気は遮断され
ていてその乱れがないため、各被熱材の全表面
に亙つて所定膜厚の緻密な黒化膜を形成させる
ことができる。(4) The heat-receiving materials loaded on the metal frame are spaced apart from each other by a predetermined distance above and below, and since the atmosphere inside the furnace is blocked and undisturbed, a predetermined film is formed over the entire surface of each heat-receiving material. A thick and dense blackened film can be formed.
第１図は本発明の一実施状態を示す全体正面
図、第２図はその部分拡大側面図である。
１１……黒化炉本体、２１……加熱・均熱帯、
２２……冷却帯、２３……前室、２４……後室、
２５……装入テーブル、２６……装出テーブル、
３１〜３４……駆動装置、４１〜４４……扉、５
１〜５３……バルブ、６１……ガス発生装置、７
１……ローラコンベヤ、８１……金枠、８２……
受片、Ａ……シヤドウマスク。
FIG. 1 is an overall front view showing one embodiment of the present invention, and FIG. 2 is a partially enlarged side view thereof. 11...Blackening furnace main body, 21...Heating/soaking zone,
22... Cooling zone, 23... Front chamber, 24... Rear chamber,
25...Charging table, 26...Charging table,
31-34...drive device, 41-44...door, 5
1-53...Valve, 61...Gas generator, 7
1... Roller conveyor, 81... Gold frame, 82...
Uke piece, A...Shadow mask.
Claims (1)
やそのサポートフレーム等の被熱材を炉内搬送し
つつ表面黒化膜形成処理するに際し、それぞれの
雰囲気が開閉可能な扉で遮断され得る前室、黒化
炉本体及び後室がこの順で連結された黒化炉内
を、発熱形ガスを含む酸化性ガス雰囲気下に、両
側の受片へ装架することにより上下で所定間隔を
空けて多段に被熱材を積載した金枠をローラコン
ベヤで支持しつつ搬送することを特徴とする黒化
処理における被熱材の搬送方法。1. When using a blackening furnace to form a blackening film on the surface of heated materials such as cathode ray tube shadow masks and their support frames while transporting them through the furnace, a front chamber, black The inside of the blackening furnace, in which the furnace main body and rear chamber are connected in this order, is mounted on receiving pieces on both sides in an oxidizing gas atmosphere containing exothermic gas, so that the blackening furnace can be stacked in multiple stages with a predetermined interval above and below. A method for conveying heat-receiving materials in blackening treatment, characterized in that a metal frame loaded with heat-receiving materials is transported while being supported by a roller conveyor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31062386A JPS63161151A (en) | 1986-12-24 | 1986-12-24 | Method for conveying material to be heated in blackening treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31062386A JPS63161151A (en) | 1986-12-24 | 1986-12-24 | Method for conveying material to be heated in blackening treatment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63161151A JPS63161151A (en) | 1988-07-04 |
| JPH0463150B2 true JPH0463150B2 (en) | 1992-10-08 |
Family
ID=18007487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31062386A Granted JPS63161151A (en) | 1986-12-24 | 1986-12-24 | Method for conveying material to be heated in blackening treatment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63161151A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55125267A (en) * | 1979-03-22 | 1980-09-26 | Kawasaki Heavy Ind Ltd | Surface treating method of improving abrasion resistance and corrosion resistance of iron and steel |
| JPS5728725A (en) * | 1980-07-11 | 1982-02-16 | Dainippon Printing Co Ltd | Packing vessel and its manufacture and its use |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5995152U (en) * | 1982-12-15 | 1984-06-28 | トヨタ自動車株式会社 | heat treatment jig |
-
1986
- 1986-12-24 JP JP31062386A patent/JPS63161151A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55125267A (en) * | 1979-03-22 | 1980-09-26 | Kawasaki Heavy Ind Ltd | Surface treating method of improving abrasion resistance and corrosion resistance of iron and steel |
| JPS5728725A (en) * | 1980-07-11 | 1982-02-16 | Dainippon Printing Co Ltd | Packing vessel and its manufacture and its use |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63161151A (en) | 1988-07-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0284233B2 (en) | Furnace for formation of black oxide film on the surface of thin metal sheet and method for formation of black oxide film on the surface of shadow mask material by use of said furnace | |
| US4714497A (en) | Process for the preparation of ferrous parts of a color television tube and furnace for operating such a process | |
| JP5559105B2 (en) | Non-flux brazing furnace for aluminum products | |
| US7625260B2 (en) | Method of sealing glass panel assembly and sealing process furnace | |
| JPH0463150B2 (en) | ||
| EP0614216A4 (en) | Apparatus for forming oxide film, heat treatment apparatus, semiconductor device, manufacturing method therefor. | |
| JPS63162851A (en) | Blackening furnace | |
| JP2003014376A (en) | Roller hearth type vacuum furnace | |
| JPS63161152A (en) | Blackening furnace | |
| US5358575A (en) | Method for blackening Ni-Fe shadow mask and mesh belt type blackening lehr for carrying out the method | |
| JPS60190511A (en) | Heat treating installation for metal | |
| JP3547700B2 (en) | Continuous vacuum carburizing furnace | |
| JP4419160B2 (en) | Protecting method of atmosphere in heating furnace and atmosphere heating furnace | |
| JPH03130317A (en) | Method for keeping cleanness in each chamber constituting multi-chambers type vacuum heat treatment furnace | |
| JP2007064490A (en) | Atmosphere gas sealing device and atmosphere gas sealing method for belt type heat-treat furnace for metal powder | |
| JPS5728689A (en) | Method for diffusion joining | |
| JPH03207811A (en) | Vacuum furnace | |
| JPH11106893A (en) | Blackening treatment of shadow mask | |
| JPS6249186A (en) | Method of operating oxide-film forming treating furnace | |
| JP2843471B2 (en) | Airtight structure of partition door in vacuum processing furnace | |
| JPH0345946Y2 (en) | ||
| JPH0196326A (en) | Fluidized bed heat-treatment apparatus | |
| JPH04214852A (en) | Nitriding treatment | |
| JPH10326565A (en) | Surface treatment device for cathode-ray tube | |
| JPH0622917Y2 (en) | Electron beam irradiation device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |