JP2598762B2 - Method of filling lead into hollow part of metal cylinder - Google Patents
Method of filling lead into hollow part of metal cylinderInfo
- Publication number
- JP2598762B2 JP2598762B2 JP6282774A JP28277494A JP2598762B2 JP 2598762 B2 JP2598762 B2 JP 2598762B2 JP 6282774 A JP6282774 A JP 6282774A JP 28277494 A JP28277494 A JP 28277494A JP 2598762 B2 JP2598762 B2 JP 2598762B2
- Authority
- JP
- Japan
- Prior art keywords
- lead
- metal cylinder
- hollow portion
- metal
- filling
- 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 - Fee Related
Links
- 239000002184 metal Substances 0.000 title claims description 41
- 229910052751 metal Inorganic materials 0.000 title claims description 41
- 238000000034 method Methods 0.000 title claims description 13
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 10
- 229910052725 zinc Inorganic materials 0.000 claims description 10
- 239000011701 zinc Substances 0.000 claims description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 238000005246 galvanizing Methods 0.000 claims description 9
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 3
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims description 3
- 239000000654 additive Substances 0.000 claims description 3
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 3
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 239000007769 metal material Substances 0.000 claims description 2
- 230000000996 additive effect Effects 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 description 8
- 239000000155 melt Substances 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000011536 re-plating Methods 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
- Coating With Molten Metal (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は金属筒の中空部に鉛を充
填する方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for filling a hollow portion of a metal cylinder with lead.
【０００２】[0002]
【従来の技術】金属筒の中空部に鉛を充填する方法とし
て、中空部に溶かした鉛を流し込んで硬化させる方法が
考えられる。しかし、斯かる方法では次の如き問題点が
ある。それは流し込むときに鉛がすぐに硬化してしまわ
ないように筒を加熱しなければならないが、筒が大きい
とバーナー等の加熱装置を多く用いなければならず、ま
た大きい筒であると肉厚も相当あるから加熱にも時間が
かかるという点である。そしてまた最大の欠点は、鉛を
加熱して溶かすときと流し込む段階で鉛中に気泡が混入
し、鉛が硬化したときに気泡がそのまま残ってしまうと
いう点である。これは鉛中に気泡や巣が絶対にないこと
を要求される場合に致命的な問題点である。2. Description of the Related Art As a method of filling lead into a hollow portion of a metal tube, a method of pouring dissolved lead into the hollow portion and curing the lead can be considered. However, such a method has the following problems. It is necessary to heat the cylinder so that the lead does not harden immediately when pouring, but if the cylinder is large, it is necessary to use many heating devices such as burners, and if the cylinder is large, the wall thickness will be large. The reason is that heating takes a long time because of the considerable amount. The greatest disadvantage is that bubbles are mixed in the lead when the lead is heated and melted and when the lead is poured, and the bubbles remain as they are when the lead hardens. This is a fatal problem when absolutely no bubbles or nests are required in the lead.
【０００３】また、上記方法のほかに鉛を圧延して詰め
込む方法も考えられるが、この場合には、気泡の混入の
点は解消することができるものの、筒が例えば直径７０
０mm、長さ１．８ｍもあるような大きなものだと型台も
相当大きなものが必要となり、型台の製作に手間や時間
がかかりすぎ、また充填作業も大変である。そしてこれ
らのことから必然的にコストも高くなる。[0003] In addition to the above method, a method of rolling and packing lead is also conceivable. In this case, although the point of air bubble mixing can be eliminated, a cylinder having a diameter of, for example, 70 mm is used.
If the size is as large as 0 mm and the length is 1.8 m, the mold base needs to be considerably large, so that it takes too much work and time to manufacture the mold base, and the filling work is also difficult. And these things inevitably increase the cost.
【０００４】[0004]
【発明が解決しようとする課題】本発明は上記の点に鑑
みなされたものであり、バーナー等の加熱装置を多数用
いる必要がなく、且つまた筒の加熱に時間を要さず、更
に圧延による場合のような大きな型台を製作する必要が
なく、安価にしかも簡単な作業でもって鉛を充填するこ
とができ、加えて鉛中から気泡を除去するについて、圧
延による場合に比してはるかに費用と手間を軽減するこ
とができるようになした金属筒の中空部に鉛を充填する
方法を提供せんとするものである。SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and does not require the use of a large number of heating devices such as burners, and does not require time for heating the cylinder. It is not necessary to manufacture a large mold base as in the case, it is possible to fill lead with inexpensive and simple work, and to remove air bubbles from lead in addition to far more than in the case of rolling It is an object of the present invention to provide a method of filling lead into a hollow portion of a metal cylinder which can reduce cost and labor.
【０００５】[0005]
【課題を解決するための手段】而して、本発明の要旨
は、金属筒の中空部の一端側を金属材でもって閉塞する
と共にその閉塞部分の上に松脂、苛性ソーダ等の添加剤
を混合した蝋を所定量充填して硬化させ、次に該金属筒
の中空部に、それが略一杯になるまで小さいブロック状
の鉛を詰め込んだ後、ガス抜き口と補充用鉛注ぎ口を設
けた蓋体を被着し、次に亜鉛メッキ槽において前記金属
筒を蓋体を上にして立てた状態で溶融状態の亜鉛中に浸
漬し、亜鉛の熱によって金属筒の中空部に詰め込んだ鉛
を溶かし、且つまた溶けて浮き上がる蝋によって鉛中の
気泡を除去し、且つこれと同時に金属筒の中空部が一杯
になるまで溶融状態の鉛を補充用鉛注ぎ口から流し込
み、その後金属筒を亜鉛メッキ槽から出して冷却するこ
とを特徴とする金属筒の中空部に鉛を充填する方法にあ
る。The gist of the present invention is to close one end of a hollow portion of a metal cylinder with a metal material and mix additives such as rosin and caustic soda on the closed portion. A predetermined amount of the filled wax was hardened, and then the hollow portion of the metal cylinder was filled with small block-shaped lead until it was almost full, and then a vent port and a replenishing lead pouring port were provided. A lid was attached, and then the metal tube was immersed in molten zinc in a galvanizing tank with the lid upright with the lid up, and the lead packed into the hollow portion of the metal tube by the heat of the zinc was removed. Melt and remove the bubbles in the lead with the wax that melts and floats again, and at the same time, pour the molten lead from the replenishing lead spout until the hollow part of the metal cylinder is full, then galvanize the metal cylinder Metal tube characterized by cooling out of the tank In a method of filling a lead into the hollow portion.
【０００６】[0006]
【実施例】以下、本発明の実施例について図面を参照し
つつ説明する。本実施例は内壁１ａと外壁１ｂの二重壁
を有する金属筒１において、該内壁１ａと外壁１ｂとの
隙間の中空部２に鉛を充填する場合の例を示すものであ
る。Embodiments of the present invention will be described below with reference to the drawings. The present embodiment shows an example in which, in a metal cylinder 1 having a double wall of an inner wall 1a and an outer wall 1b, lead is filled in a hollow portion 2 in a gap between the inner wall 1a and the outer wall 1b.
【０００７】そこで、工程を説明すると、予め金属筒１
の中空部２の一端側を金属板３で閉塞する。そして閉塞
した部分の上に松脂、苛性ソーダ等の添加剤を混合した
蝋４を所定量充填して硬化させる。尚、蝋４の量は充填
する鉛の量に合わせて調節する。そして次に該中空部２
にそれが一杯になるまで小さいブロック状の鉛５を詰め
込む（図２参照）。Therefore, the process will be described.
Is closed with a metal plate 3 at one end. Then, a predetermined amount of a wax 4 mixed with additives such as rosin, caustic soda, etc. is filled in the closed portion and hardened. The amount of the wax 4 is adjusted in accordance with the amount of lead to be filled. And then the hollow part 2
Is filled with small block-shaped lead 5 until it is full (see FIG. 2).
【０００８】次に、ガス抜き口６と補充用鉛注ぎ口７を
設けた蓋体８を被着して金属筒１の開口部２を閉塞する
（図３参照）。尚、本実施例ではガス抜き口６には細い
筒状体９を接続し、補充用鉛注ぎ口７には漏斗状の注ぎ
具１０を接続している。また、金属筒１の上部には吊り
上げ用の彎曲杆１１，１１を対向させて接続している。Next, a cover 8 provided with a gas vent 6 and a replenishing lead pouring port 7 is attached to close the opening 2 of the metal cylinder 1 (see FIG. 3). In this embodiment, a thin cylindrical body 9 is connected to the gas vent 6, and a funnel-shaped pouring tool 10 is connected to the replenishing lead pouring port 7. In addition, lifted curved rods 11 are connected to the upper part of the metal cylinder 1 so as to face each other.
【０００９】次に、金属筒１をチェーンブロック（図示
せず）等を用いて吊り上げて亜鉛メッキ槽１２上に移動
させ、そしてこれを降ろして溶融状態の亜鉛１３中に浸
漬する。尚、このときには金属筒１を蓋体８を上にして
立てた状態で浸漬する（図４参照）。Next, the metal tube 1 is lifted using a chain block (not shown) or the like, moved to a galvanizing tank 12, and then lowered and immersed in a molten zinc 13. At this time, the metal tube 1 is immersed in a state where the cover 8 is set up with the cover 8 up (see FIG. 4).
【００１０】これにより亜鉛１３の熱によって金属筒１
は全体が一度に満遍なく加熱される。したがって、金属
筒１の加熱時間は少くて済む。そして金属筒１が加熱さ
れると、中空部２中のブロック状の鉛５も溶け出す。
尚、このとき溶融状態の亜鉛の温度は約４５０〜４６０
℃であり、また鉛の温度は４００〜４１０℃である。Thus, the metal cylinder 1 is heated by the heat of the zinc 13.
Are heated evenly all at once. Therefore, the heating time of the metal cylinder 1 is short. When the metal cylinder 1 is heated, the block-shaped lead 5 in the hollow part 2 also melts.
At this time, the temperature of the molten zinc is about 450 to 460.
° C, and the temperature of lead is 400-410 ° C.
【００１１】そしてまた、鉛５が溶けると共に蝋４も溶
ける。そして溶けた蝋４は鉛５よりも比重が小さいから
浮き上がり、このとき溶けた鉛中に混入している気泡を
一緒に包み込んで浮き上がらせるものである。これによ
り鉛中から気泡を完全に抜くことができるものである。In addition, the lead 4 melts and the wax 4 melts. The melted wax 4 has a specific gravity lower than that of the lead 5 and rises up. At this time, the bubbles mixed in the melted lead are wrapped together and floated up. Thereby, air bubbles can be completely removed from the lead.
【００１２】そして、鉛の上部に達した気泡はつぶれて
ガス状になり、ガス抜き口６から放出されるものであ
る。また、鉛５が溶けると金属筒１の中空部２の上部側
に隙間が出来るので、溶融状態の鉛１４を隙間が埋まる
まで補充するものである。この補充は補充用鉛注ぎ口７
から溶融状態の鉛１４を流し込むことによって行う（図
５参照）。そしてその後金属筒１を亜鉛メッキ槽１２か
ら出して冷却することによって完了するものである。The bubbles reaching the upper part of the lead are crushed and become gaseous, and are discharged from the gas vent 6. Further, when the lead 5 is melted, a gap is formed on the upper side of the hollow portion 2 of the metal cylinder 1, so that the molten lead 14 is replenished until the gap is filled. This refill is a lead spout 7 for replenishment
This is carried out by pouring in a molten state of lead 14 (see FIG. 5). Thereafter, the metal tube 1 is taken out of the galvanizing tank 12 and cooled to complete the process.
【００１３】[0013]
【発明の効果】本発明は上記の如く亜鉛メッキ槽の亜鉛
の熱を利用して金属筒を加熱するものであるから、金属
筒全体を一度に加熱することができる。したがって、加
熱時間が短かくて済み、作業能率も向上する。また、金
属筒全体を満遍なく加熱することができるから、中空部
内の溶けた鉛は均一の溶融状態であり、蝋の浮き上がり
がスムーズになる。もって蝋による鉛中の気泡の除去が
より完全になる。According to the present invention, as described above, the metal cylinder is heated by using the heat of zinc in the galvanizing tank, so that the entire metal cylinder can be heated at one time. Therefore, the heating time is short, and the working efficiency is improved. Further, since the entire metal cylinder can be uniformly heated, the molten lead in the hollow portion is in a uniform molten state, and the floating of the wax is smooth. This makes the removal of bubbles in the lead by the wax more complete.
【００１４】また、従来の如く多数のバーナーを要さ
ず、また圧延する方法の場合の如き大きな型台を特別に
製作する必要がないから、コストも安上りであり、加え
て作業も簡単である。Further, since there is no need for a large number of burners as in the prior art, and no special production of a large mold base as in the case of the rolling method, the cost is low and the operation is simple. is there.
【００１５】また、亜鉛メッキ槽を用いて加熱するもの
であるから、加熱と同時に金属筒の外周をメッキするこ
とができる。したがって従来の如く一々作業完了後にあ
らためてメッキする手間を省くことができる。Further, since the heating is performed using the galvanizing bath, the outer periphery of the metal cylinder can be plated simultaneously with the heating. Therefore, it is possible to save the trouble of re-plating after the completion of each work as in the related art.
【００１６】以上の如く本発明によれば、安価にしかも
簡単な作業でもって鉛を充填することができ、加えて鉛
中から完全に気泡を除去するについて、圧延による場合
に比してはるかに費用と手間を軽減することができるも
のである。そして斯かる効果は金属筒が大きくなればな
る程顕著になるものである。As described above, according to the present invention, lead can be filled at a low cost and with a simple operation. In addition, the removal of bubbles from the lead is far less than the case of rolling. It is possible to reduce cost and labor. Such an effect becomes more remarkable as the metal cylinder becomes larger.
【００１７】また、前記実施例においては内外二重壁を
有する金属筒の場合を示したが、本発明は勿論これに限
定されないものである。Further, in the above-described embodiment, the case of the metal cylinder having the inner and outer double walls has been described, but the present invention is of course not limited to this.
【図１】本発明の実施例における金属筒に蓋体を被着し
た状態の斜視図である。FIG. 1 is a perspective view showing a state in which a lid is attached to a metal cylinder according to an embodiment of the present invention.
【図２】金属筒の中空部にブロック状の鉛を詰め込んだ
状態の断面図である。FIG. 2 is a cross-sectional view of a state in which block-shaped lead is packed in a hollow portion of a metal cylinder.
【図３】金属筒に蓋体を被着した状態の断面図である。FIG. 3 is a cross-sectional view showing a state where a lid is attached to a metal cylinder.
【図４】金属筒を亜鉛メッキ槽中の亜鉛に浸漬した状態
の断面図である。FIG. 4 is a cross-sectional view of a state where the metal cylinder is immersed in zinc in a galvanizing tank.
【図５】金属筒の中空部に鉛を補充している状態の断面
図である。FIG. 5 is a cross-sectional view showing a state where lead is refilled in a hollow portion of a metal cylinder.
１ 金属筒 １ａ 内壁 １ｂ 外壁 ２ 中空部 ３ 金属板 ４ 蝋 ５ ブロック状の鉛 ６ ガス抜き口 ７ 補充用鉛注ぎ口 ８ 蓋体 １２ 亜鉛メッキ槽 １３ 亜鉛 １４ 溶融状態の鉛 DESCRIPTION OF SYMBOLS 1 Metal cylinder 1a Inner wall 1b Outer wall 2 Hollow part 3 Metal plate 4 Wax 5 Block-shaped lead 6 Gas vent 7 Replenishment lead pouring port 8 Lid 12 Galvanizing tank 13 Zinc 14 Lead in molten state
Claims (1)
て閉塞すると共にその閉塞部分の上に松脂、苛性ソーダ
等の添加剤を混合した蝋を所定量充填して硬化させ、次
に該金属筒の中空部に、それが略一杯になるまで小さい
ブロック状の鉛を詰め込んだ後、ガス抜き口と補充用鉛
注ぎ口を設けた蓋体を被着し、次に亜鉛メッキ槽におい
て前記金属筒を蓋体を上にして立てた状態で溶融状態の
亜鉛中に浸漬し、亜鉛の熱によって金属筒の中空部に詰
め込んだ鉛を溶かし、且つまた溶けて浮き上がる蝋によ
って鉛中の気泡を除去し、且つこれと同時に金属筒の中
空部が一杯になるまで溶融状態の鉛を補充用鉛注ぎ口か
ら流し込み、その後金属筒を亜鉛メッキ槽から出して冷
却することを特徴とする金属筒の中空部に鉛を充填する
方法。An end of a hollow portion of a metal cylinder is closed with a metal material, and a predetermined amount of wax mixed with an additive such as rosin and caustic soda is filled and hardened on the closed portion. After filling the hollow portion of the metal cylinder with small block-shaped lead until it is almost full, cover the lid with a vent port and a replenishing lead pouring port, and then in the galvanizing tank The metal cylinder is immersed in molten zinc with the lid up, with the heat of the zinc to melt the lead packed into the hollow part of the metal cylinder, and the bubbles in the lead are melted and floated by the wax that floats. Removing, and at the same time, pouring molten lead from a replenishing lead pouring port until the hollow portion of the metal cylinder is full, and then removing the metal cylinder from the galvanizing tank and cooling it. A method of filling the hollow with lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6282774A JP2598762B2 (en) | 1994-10-21 | 1994-10-21 | Method of filling lead into hollow part of metal cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6282774A JP2598762B2 (en) | 1994-10-21 | 1994-10-21 | Method of filling lead into hollow part of metal cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08120430A JPH08120430A (en) | 1996-05-14 |
| JP2598762B2 true JP2598762B2 (en) | 1997-04-09 |
Family
ID=17656906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6282774A Expired - Fee Related JP2598762B2 (en) | 1994-10-21 | 1994-10-21 | Method of filling lead into hollow part of metal cylinder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2598762B2 (en) |
-
1994
- 1994-10-21 JP JP6282774A patent/JP2598762B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08120430A (en) | 1996-05-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |