JPS6143679B2 - - Google Patents
Info
- Publication number
- JPS6143679B2 JPS6143679B2 JP2452881A JP2452881A JPS6143679B2 JP S6143679 B2 JPS6143679 B2 JP S6143679B2 JP 2452881 A JP2452881 A JP 2452881A JP 2452881 A JP2452881 A JP 2452881A JP S6143679 B2 JPS6143679 B2 JP S6143679B2
- Authority
- JP
- Japan
- Prior art keywords
- hole
- space
- movable part
- molten material
- solidified
- 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
Links
- 239000012768 molten material Substances 0.000 claims description 26
- 239000000463 material Substances 0.000 claims description 22
- 238000007711 solidification Methods 0.000 claims description 12
- 230000008023 solidification Effects 0.000 claims description 12
- 230000000903 blocking effect Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims 1
- 239000012809 cooling fluid Substances 0.000 description 10
- 239000000155 melt Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000002901 radioactive waste Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 239000000289 melt material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Processing Of Solid Wastes (AREA)
Description
【発明の詳細な説明】
この発明は放射性廃棄物を溶融固化して減容処
理する放射性廃棄物処理炉において、廃棄物その
他を溶融させてできた溶融物を固化させる為の溶
融物固化用鋳型に関するものである。Detailed Description of the Invention This invention provides a mold for solidifying molten material for solidifying a molten material produced by melting waste and other materials in a radioactive waste processing reactor that melts and solidifies radioactive waste to reduce its volume. It is related to.
従来より上記のような溶融物は一般に平面形状
が丸形の容器内で固化させることが行なわれてい
る。しかし丸形の固化物はこれを多数並べて保管
する場合に固化物相互の間に余分な空き空間が多
くできて、保管の為のスペースを広くとつてしま
う問題点があつた。更にまた固化物の取出も上記
容器を転動させたりせねばならず、取出工法が複
雑であるという問題点もあつた。 Conventionally, the above-mentioned molten material has generally been solidified in a container having a round planar shape. However, when a large number of round solidified products are stored side by side, there is a problem in that a large amount of empty space is created between the solidified products, which takes up a large amount of space for storage. Furthermore, the container must be rolled in order to take out the solidified material, and the method for taking out the solidified material is complicated.
本発明は、上述の問題点を除くようにしたもの
で、溶融物を保管に都合のよい角形形状に固化さ
せることができ、更にまた固化物の取出も簡易に
行ない得るようにした溶融物固化用鋳型を提供し
ようとするものである。 The present invention has been made to eliminate the above-mentioned problems, and is capable of solidifying a molten material into a rectangular shape that is convenient for storage, and also enables easy removal of the solidified material. The aim is to provide molds for
以下本願の実施例を示す図面について説明す
る。第１図乃至第３図に示された溶融物固化用鋳
型１において、２は側壁で、４枚の側壁要素３を
枠組みし固定用ボルト４で相互に固定することに
よつて筒状に形成されている。各側壁要素３は
夫々銅製の本体５と蓋体６とを固定ボルト７によ
つて水密的に固定し、内部に冷却用流体（例えば
水）の流通路８を形成している。尚９は冷却用流
体の注入口、１０は排出口を夫々示す。次に１１
は底壁で、側壁２の下面に図示外の固定用ボルト
で固定した不動部１２と、不動部１２に対し上下
動を可能にした可動部１７とから成る。不動部１
２は銅製の本体１３の内部に冷却用流体の流通路
１４を備えさせた構造となつており、図示外の流
通口から上記流通路１４に冷却用流体を流通させ
得るようになつている。１５は透孔で、その内周
壁面１５ａは下方ほど直径が小さくなる傾斜面に
形成してある。尚この透孔１５の上縁の直径は、
該鋳型１の内部に形成された溶融物固化用空間２
３の四角な平面形状の一辺よりも小さければ、図
示されたような比率の大きさ以外により大きく形
成してもより小さく形成しても良い。またその平
面形状は図示されるような円形以外に角形その他
任意の形状に形成して良い。１７は可動部で、銅
製の本体１８の内部に冷却用流体の流通路１９を
備えさせた構造となつており、流通口２０から上
記流通路１９に冷却用流体を流通させ得るように
なつている。尚この可動部１７の外径寸法は上記
透孔１５の内径寸法と同一に構成されており、ま
た外周壁面２１は透孔１５の内周壁面１５ａの傾
斜と同じ傾斜の傾斜面に構成してある。尚上記外
径寸法あるいはその平面形状は上記透孔１５と共
に他の寸法あるいは形状にしても良い。２４は上
方開口部を示す。 The drawings showing the embodiments of the present application will be described below. In the mold 1 for solidifying a melt shown in FIGS. 1 to 3, 2 is a side wall formed into a cylindrical shape by framing four side wall elements 3 and fixing them to each other with fixing bolts 4. has been done. Each side wall element 3 has a main body 5 made of copper and a lid 6 that are watertightly fixed by fixing bolts 7, and has a flow path 8 for a cooling fluid (for example, water) formed therein. Note that 9 indicates an inlet for the cooling fluid, and 10 indicates an outlet. Next 11
is a bottom wall, which consists of a stationary part 12 fixed to the lower surface of the side wall 2 with fixing bolts (not shown), and a movable part 17 that can move up and down with respect to the stationary part 12. Fixed part 1
2 has a structure in which a cooling fluid flow path 14 is provided inside a copper body 13, and the cooling fluid can be flowed into the flow path 14 from a flow port (not shown). Reference numeral 15 denotes a through hole, the inner peripheral wall surface 15a of which is formed into an inclined surface whose diameter becomes smaller toward the bottom. The diameter of the upper edge of this through hole 15 is
A space 2 for solidifying the melt formed inside the mold 1
As long as it is smaller than one side of the rectangular planar shape of No. 3, it may be formed larger or smaller than the proportion shown in the figure. Further, the planar shape thereof may be formed into any shape other than the circle shown in the figure, such as a rectangular shape. Reference numeral 17 denotes a movable part, which has a structure in which a cooling fluid flow path 19 is provided inside a copper main body 18, and the cooling fluid can be passed through the flow path 19 from a flow port 20. There is. The outer diameter of the movable portion 17 is configured to be the same as the inner diameter of the through hole 15, and the outer peripheral wall surface 21 is configured to be an inclined surface having the same slope as the inner peripheral wall surface 15a of the through hole 15. be. Incidentally, the above-mentioned outer diameter dimension or its planar shape may be other dimensions or shapes as well as the above-mentioned through hole 15. 24 indicates an upper opening.
次に上記構成の鋳型１の使用方法を説明する。
先ず各冷却用流体の流通路に夫々冷却用流体を流
通させておく。その状態において、任意の溶融装
置で溶融させた放射性廃棄物その他の物の溶融物
（ブロツク状に固化させようとする溶融物）を上
方開口部２４から固化用空間２３に流し込む。そ
してその注入量が所定の量になつたならば流し込
みを停止する。 Next, a method of using the mold 1 having the above configuration will be explained.
First, the cooling fluid is made to flow through each cooling fluid flow path. In this state, a melt of radioactive waste or other material (melt material to be solidified into a block shape) melted by an arbitrary melting device is poured into the solidification space 23 from the upper opening 24. When the amount of injection reaches a predetermined amount, pouring is stopped.
次に、流し込まれた溶融物が固化したならば底
壁１１における可動部１７を任意の昇降手段例え
ばシリンダーにより上昇させて、上記固化物を空
間２３から上方開口部２４を介して上方に持ち上
げる。そしてその持ち上げた固化物は他の任意の
搬送装置により持ち替えて、保管用その他の場所
に運べば良い。尚上記持ち替えの場合、可動部１
７の平面形状が図示される如く固化用空間の平面
形状よりも小さく形成されている為、この可動部
１７によつて固化物を持ち上げた状態のときには
固化物の下面に他の物による支持を可能とする被
支持部が残されている。従つてその被支持部にお
いて上記他の搬送装置による持ち替えを容易に行
なうことができる。 Next, once the poured melt has solidified, the movable part 17 on the bottom wall 11 is raised by any elevating means, such as a cylinder, and the solidified material is lifted upward from the space 23 through the upper opening 24. Then, the lifted solidified material may be transferred to any other transport device and transported to storage or other locations. In addition, in the case of changing the grip above, the movable part 1
As shown in the figure, the planar shape of the solidified material is smaller than that of the solidification space, so when the solidified material is lifted up by the movable part 17, the lower surface of the solidified material cannot be supported by another object. There remains a supported portion that allows this. Therefore, the supported portion can be easily transferred to another conveyance device.
上記のようにして固化物を持ち去つたならば、
可動部１７を下降させることにより透孔１５内に
戻してこれを塞ぎ、再び上述の如く溶融物の流し
込みを行なう。 If you remove the solidified material as described above,
By lowering the movable part 17, it returns to the through hole 15 and closes it, and the melt is poured again as described above.
次に第４図は上記のような操作を一連に行なう
ようにしたブロツク化装置を示すものである。即
ち図において、ケース３１の中央部においてベア
リング３２，３３により支承された回転柱３４
は、モーター３５の回動を減速機３６、歯車３７
を介して伝達されて一方向へ間欠的に回動する。
回転柱３４の上部に取付けられた回転枠３８は柱
３４と一緒に回動する。尚この場合、回転枠３８
の下面に取付けられた車輪３９はケース３１に取
付けられたレール４０の上を移動する。回転枠３
８には複数の鋳型１が回転柱３４の位置を中心と
する一つの円周上に並べて設けられており、各鋳
型１の下側にはフレーム４１に支えられたシリン
ダー４２が備わつている。シリンダー４２の進退
杆は冷却用流体供給部材４３を介して鋳型１にお
ける底壁１１の可動部１７に連結されている。流
体供給部材４３は二重筒となつており、送入口４
４から送入された流体は流通路１９を通り、排出
口４５から排出される。また各鋳型１の側壁２に
おける注入口９、排出口１０あるいは上記送入口
４４、排出口４５は回転柱３４に備えられた接続
口４７，４８に接続されて、鋳型１の各流通部は
回転柱３４を介して冷却用流体の供給を受ける。 Next, FIG. 4 shows a blocking device which performs a series of operations as described above. That is, in the figure, a rotating column 34 supported by bearings 32 and 33 in the center of the case 31
The rotation of the motor 35 is controlled by the reducer 36 and the gear 37.
It rotates in one direction intermittently.
A rotating frame 38 attached to the top of the rotating column 34 rotates together with the column 34. In this case, the rotating frame 38
Wheels 39 attached to the lower surface of the case 31 move on rails 40 attached to the case 31. Rotating frame 3
8, a plurality of molds 1 are arranged side by side on one circumference centered around the position of a rotating column 34, and a cylinder 42 supported by a frame 41 is provided below each mold 1. . The reciprocating rod of the cylinder 42 is connected to the movable part 17 of the bottom wall 11 of the mold 1 via a cooling fluid supply member 43. The fluid supply member 43 is a double cylinder, and the inlet port 4
The fluid sent from 4 passes through the flow path 19 and is discharged from the discharge port 45. In addition, the inlet 9 and outlet 10 in the side wall 2 of each mold 1 or the inlet 44 and outlet 45 are connected to connection ports 47 and 48 provided in the rotating column 34, so that each circulation part of the mold 1 rotates. A cooling fluid is supplied through the column 34 .
上記のように回転柱３４が回転する過程におい
て、注入位置Ａに到達した鋳型１内にはその上方
の溶融装置５０から溶融物が注ぎ込まれる。その
溶融物は鋳型１が移動していく過程で固化し、や
がて鋳型１が取出位置Ｂに到達するとシリンダー
４２の進退杆が伸長して可動部１７により固化物
５１が持ち上げられる。するとその固化物は、例
えば上方より吊下げられた搬送装置５２のフツク
５３によつて自体の下面の被支持部を下側から支
えられ、以後は可動部１７に代わつてこのフツク
５３により持ち上げられた状態で運ばれる。上記
のような固化物の運び出しが完了すると可動部１
７は下降され、空となつた鋳型１は再び溶融物の
注入に供される。 In the process of rotating the rotating column 34 as described above, the melt is poured into the mold 1 that has reached the injection position A from the melting device 50 above it. The molten material solidifies as the mold 1 moves, and when the mold 1 eventually reaches the take-out position B, the advancing/retracting rod of the cylinder 42 is extended and the solidified material 51 is lifted up by the movable part 17. Then, the solidified material is supported from below by the hook 53 of the conveying device 52 suspended from above, and thereafter is lifted by the hook 53 instead of the movable part 17. transported in a state of When the transport of the solidified material as described above is completed, the movable part 1
7 is lowered, and the now empty mold 1 is again subjected to injection of melt.
以上のようにこの発明にあつては、四角な平面
形状の溶融物固化用空間２３を備えているから、
溶融物を固化させる場合、その溶融物を四角な平
面形状のブロツク状に固化させることができ、例
えば固化させたものを保管する場合、余分なスペ
ースを取ることなく保管できるようにし得る効果
がある。 As described above, since the present invention is provided with the space 23 for solidifying the molten material having a rectangular planar shape,
When solidifying a molten material, the molten material can be solidified into a rectangular planar block shape, and for example, when storing the solidified material, it has the effect of being able to be stored without taking up extra space. .
しかも上記のように溶融物を容器内で固化させ
たもの（固化用空間の隅々まで溶融物が行き届い
て固化したもの）を取出す場合、本発明にあつて
は底壁の一部を昇降可能に構成しているから、底
板１１の可動部１７を上昇させることによつて
（容器を転動させたりする必要なく）その底板可
動部１７と共に上記固化しものを容器から持ち上
げることができ、固化物の取出工法を簡易化でき
る効果がある。 Furthermore, when taking out the molten material that has been solidified in the container as described above (the molten material has solidified by reaching every corner of the solidification space), in the present invention, part of the bottom wall can be raised and lowered. Therefore, by raising the movable part 17 of the bottom plate 11 (without the need to roll the container), the solidified material can be lifted from the container together with the bottom plate movable part 17, and the solidified material can be lifted from the container. This has the effect of simplifying the method for extracting objects.
更に本発明にあつては、固化物の下面の一部を
可動部１７により支えた状態において固化物の下
面の他の一部に固化物下側からの他物による支持
を可能にする被支持部が形成され得るよう可動部
１７の平面寸法を充分に小さく形成しているか
ら、上記のようにして固化物を持ち上げた後その
固化物を運搬しようとする場合には、固化物を可
動部によつて下から支えたままの状態でそのまま
すぐに他の運搬手段に持替できる効果がある。 Furthermore, in the present invention, while a part of the lower surface of the solidified product is supported by the movable part 17, a supported part is provided on the other part of the lower surface of the solidified product to enable support by another object from below the solidified product. Since the planar dimensions of the movable part 17 are made sufficiently small so that a solid part can be formed, when the solidified material is to be transported after being lifted as described above, This has the effect of allowing you to immediately transfer it to another means of transport while still supporting it from below.
更に本発明にあつては可動部１７の外周壁面２
１と透孔１５の内周壁面１５ａとを夫々下方が狭
まる向きで、しかも略等しい傾斜に形成している
から、上記のように可動部１７が不動部１２から
分離するものであつても、可動部１７を不動部１
２の透孔１５内に戻して透孔１５を塞いだときに
はそれら両者の密着性を良好なものにすることが
でき、溶融物の漏出を防止できる効果もある。 Furthermore, in the present invention, the outer peripheral wall surface 2 of the movable part 17
1 and the inner circumferential wall surface 15a of the through hole 15 are respectively formed in a direction that narrows downward and have substantially equal slopes, so even if the movable part 17 is separated from the stationary part 12 as described above, The movable part 17 is the fixed part 1
When the melt is returned to the through hole 15 of No. 2 and the through hole 15 is closed, good adhesion can be achieved between the two, and leakage of the melt can also be prevented.
図面は本願の実施例を示すもので、第１図は縦
断面図（第２図における−線断面図）、第２
図は水平断面図（第１図における−線断面
図）、第３図は矢視方向図、第４図はブロツク
化装置の縦断面略示図。
２……側壁、１１……底壁、１２……不動部、
１５……透孔、１７……可動部、２３……溶融物
固化用空間。
The drawings show an embodiment of the present application, and FIG. 1 is a longitudinal cross-sectional view (- line cross-sectional view in FIG.
The drawings are a horizontal sectional view (--line sectional view in FIG. 1), FIG. 3 is a view taken in the direction of arrows, and FIG. 4 is a schematic vertical sectional view of the blocking device. 2... Side wall, 11... Bottom wall, 12... Fixed part,
15...Through hole, 17...Movable part, 23... Space for solidifying molten material.
Claims (1)
内部には平面形状が四角な溶融物固化用空間を備
えて、上記上方の開口部から上記固化用空間に注
ぎ込まれた溶融物を上記空間において四角な平面
形状のブロツク状に固化させるようにしている溶
融物固化用鋳型において、上記底壁は、上記側壁
と一体でしかも一部に透孔を有する不動部と、上
記透孔内に位置させてその透孔を塞ぐと共に、そ
の状態から上方への持上を可能にした可動部とに
より構成し、しかも上記透孔及び可動部の平面寸
法は、上記固化用空間の平面寸法よりも小さく形
成し、上記可動部により不動部の透孔を塞いだ状
態において上記固化用空間内に注入した溶融物が
固化した後、上記可動部を上記透孔を介して持上
げることにより、上記固化物を可動部と共に持上
げ得るようにしたことを特徴とする溶融物固化用
鋳型。 ２ 側壁と底壁とを有し、かつ上方は開口させ、
内部には平面形状が四角な溶融物固化用空間を備
えて、上記上方の開口部から上記固化用空間に注
ぎ込まれた溶融物を上記空間において四角な平面
形状のブロツク状に固化させるようにしている溶
融物固化用鋳型において、上記底壁は、上記側壁
と一体でしかも一部に透孔を有する不動部と、上
記透孔内に位置させてその透孔を塞ぐと共に、そ
の状態から上方への持上を可能にした可動部とに
より構成し、しかも上記透孔及び可動部の平面寸
法は、上記固化用空間においてブロツク状に固化
された固化物の下面の一部を後述の如く上記可動
部で持上げた状態において、上記固化物の下面の
残部に下側からの支持を可能にする被支持部が形
成され得る余裕が残るよう上記固化用空間の平面
寸法よりも小さく形成し、上記可動部により不動
部の透孔を塞いだ状態において上記固化用空間内
に注入した溶融物が固化した後、上記可動部を上
記透孔を介して持上げることにより、上記固化物
を可動部と共に持上げ得るようにしたことを特徴
とする溶融物固化用鋳型。 ３ 側壁と底壁とを有し、かつ上方は開口させ、
内部には平面形状が四角な溶融物固化用空間を備
えて、上記上方の開口部から上記固化用空間に注
ぎ込まれた溶融物を上記空間において四角な平面
形状のブロツク状に固化させるようにしている溶
融物固化用鋳型において、上記底壁は、上記側壁
と一体でしかも一部に透孔を有する不動部と、上
記透孔内に位置させてその透孔を塞ぐと共に、そ
の状態から上方への持上を可能にした可動部とに
より構成し、しかも上記透孔及び可動部の平面寸
法は、上記固化用空間の平面寸法よりも小さく形
成し、更に、上記不動部における透孔の内周面
は、さしわたし寸法が下方になるほど小さくなる
傾斜面に形成し、また上記可動部の外周面は、該
可動部を上記透孔内に位置させてその透孔を塞い
だ時にその透孔の内周面に密着し得るよう透孔の
内周面とほぼ等しい傾斜面に形成し、上記可動部
により不動部の透孔を塞いだ状態において上記固
化用空間内に注入した溶融物が固化した後、上記
可動部を上記透孔を介して持上げることにより、
上記固化物を可動部と共に持上げ得るようにした
ことを特徴とする溶融物固化用鋳型。[Claims] 1. Having a side wall and a bottom wall, and being open at the top,
The interior is provided with a space for solidifying a molten material having a square planar shape, so that the molten material poured into the solidifying space from the upper opening is solidified in the space into a block shape having a square planar shape. In the mold for solidifying a molten material, the bottom wall includes a stationary part that is integral with the side wall and partially has a through hole, and a fixed part that is positioned within the through hole to close the through hole and extends upward from that state. and a movable part that makes it possible to lift the liquid, and the planar dimensions of the through hole and the movable part are smaller than the planar dimensions of the solidification space, and the movable part closes the through hole of the stationary part. After the molten material injected into the solidification space is solidified in the still state, the solidified material can be lifted together with the movable part by lifting the movable part through the through hole. Mold for solidifying molten material. 2 It has a side wall and a bottom wall, and is open at the top,
The interior is provided with a space for solidifying a molten material having a square planar shape, so that the molten material poured into the solidifying space from the upper opening is solidified in the space into a block shape having a square planar shape. In the mold for solidifying a molten material, the bottom wall includes a stationary part that is integral with the side wall and partially has a through hole, and a fixed part that is positioned within the through hole to close the through hole and extends upward from that state. The planar dimensions of the through hole and the movable part are such that a part of the lower surface of the solidified material solidified into a block shape in the solidification space can be lifted up by the movable part. The solidification space is formed to be smaller than the planar dimension of the solidification space so that when the solidified product is lifted by the lower surface, there is still room for forming a supported part that enables support from below on the remaining part of the lower surface of the solidified product. After the molten material injected into the solidification space solidifies while the through hole of the stationary part is blocked by the part, the solidified material is lifted together with the movable part by lifting the movable part through the through hole. A mold for solidifying a molten material, characterized in that: 3 It has a side wall and a bottom wall, and is open at the top,
The interior is provided with a space for solidifying a molten material having a square planar shape, so that the molten material poured into the solidifying space from the upper opening is solidified in the space into a block shape having a square planar shape. In the mold for solidifying a molten material, the bottom wall includes a stationary part that is integral with the side wall and partially has a through hole, and a fixed part that is positioned within the through hole to close the through hole and extends upward from that state. The planar dimensions of the through hole and the movable part are smaller than the planar dimensions of the solidification space, and the inner periphery of the through hole in the stationary part is formed to be smaller than the planar dimension of the solidification space. The surface is formed into an inclined surface whose width becomes smaller as it goes downward, and the outer circumferential surface of the movable part is formed so that when the movable part is positioned in the through-hole and the through-hole is closed, the through-hole is closed. The molten material injected into the solidification space is solidified with the movable part blocking the through-hole of the stationary part. After that, by lifting the movable part through the through hole,
A mold for solidifying a molten material, characterized in that the solidified material can be lifted together with a movable part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2452881A JPS57137899A (en) | 1981-02-20 | 1981-02-20 | Casting for solidifying melting material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2452881A JPS57137899A (en) | 1981-02-20 | 1981-02-20 | Casting for solidifying melting material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57137899A JPS57137899A (en) | 1982-08-25 |
| JPS6143679B2 true JPS6143679B2 (en) | 1986-09-29 |
Family
ID=12140647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2452881A Granted JPS57137899A (en) | 1981-02-20 | 1981-02-20 | Casting for solidifying melting material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57137899A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01134131A (en) * | 1987-11-18 | 1989-05-26 | Matsushita Electric Ind Co Ltd | Heating apparatus |
-
1981
- 1981-02-20 JP JP2452881A patent/JPS57137899A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01134131A (en) * | 1987-11-18 | 1989-05-26 | Matsushita Electric Ind Co Ltd | Heating apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57137899A (en) | 1982-08-25 |
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