JPS61235549A - Replenishing method for melted metal for plating - Google Patents

Abstract

PURPOSE:To hold the level of a melted plating metal incorporated in the melting vessel of the plating metal to a specified position by providing a level sensor to the melting vessel of the plating metal in the plating device of melted metal and melting the ingot of the plating metal in the position of the surface of the melted metal detected with the sensor. CONSTITUTION:The molten 5 of the melted plating metal such as Sn incorporated in the melting vessel 7 of metal is fed to the inside of a hot dipping vessel 1 and a wire 2 to be plated such as a copper wire is passed and Sn is plated on the surface. In such a case, the oxidation of the melted Sn is prevented by making the melting vessel of Sn a closed type and making the inside thereof the inert gas atmosphere. Also two pieces of level sensor 9, 10 different in the tip positions are provided and the surface level of the melted Sn incorporated in the vessel 7 is detected and the descent of a melted metal surface of the melted Sn 5 is sensed with the sensor 9 and a heater 11 melting an ingot 6 is electrically conducted. When the surface of the melted metal is ascended by the melting of the Sn ingot, it is detected with the sensor 10 and the electric conduction of the heater 11 for melting the Sn ingot 6 is stopped.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は外気と遮断されたメッキ用溶解金属の溶解槽に
おける溶解金属の液面レベルを制御方法に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for controlling the liquid level of molten metal in a melting tank for plating which is isolated from the outside air.

〔従来の技術〕[Conventional technology]

従来、金属線条体等にメッキを行なわんとするためのホ
ットディップ装置においては、金属溶解槽がそのｔまホ
ットディ、プ槽を兼ねているものである。即ち第１図に
示す如く槽１に注入した溶湯５の内に線状体２を走行せ
しめつつガイドローラ３にて該線状体の方向を転換しダ
イス４にて該線状体に耐着し九余剰の金属を絞るという
方法にてメッキを行っているものである。この方法によ
る場合には槽１は開放状態を呈し溶湯５は大気にさらさ
れていると共に該溶湯が線条体２の外周に耐着してメッ
キを施すことにより、該溶湯の液面は徐々に低下するた
め固体金属（インゴット）６を溶湯５内に補給し溶湯の
加熱温度にて該固体金属を溶解せしめて溶湯の液面を規
定のレベルに保持しているものである。Conventionally, in a hot dip apparatus for plating metal filaments and the like, a metal dissolving tank also serves as a hot dip tank. That is, as shown in FIG. 1, the linear body 2 is made to run through the molten metal 5 poured into the tank 1, and the direction of the linear body is changed by the guide roller 3, and the die 4 is used to firmly adhere the linear body. Plating is performed by squeezing out excess metal. In this method, the tank 1 is in an open state and the molten metal 5 is exposed to the atmosphere, and the molten metal adheres to the outer periphery of the filament 2 and is plated, so that the liquid level of the molten metal gradually decreases. To prevent this, solid metal (ingot) 6 is replenished into the molten metal 5, and the solid metal is melted at the heating temperature of the molten metal, thereby maintaining the liquid level of the molten metal at a specified level.

従って溶湯は空気と接触している九め、必然的に酸化ス
ズを発生し溶湯はその品質が不純なものとなり、メッキ
線の品質を著しく低下せしめるものであっ几。又溶湯内
に固体金属をそのｔま補給する几め固体金属が溶解する
際に熱をうばい溶湯の温度が低下しメッキの品質に悪影
響を及ばずものである。更に溶湯の液面レベルが減少す
るのを作業者が肉眼にて管理しつつ固体金属を補給する
ためその作業性を困難にするものであった。Therefore, when the molten metal comes into contact with air, it inevitably generates tin oxide, making the molten metal impure and significantly reducing the quality of the plated wire. Also, by replenishing the solid metal into the molten metal for a while, when the solid metal melts, it absorbs heat and lowers the temperature of the molten metal, which does not adversely affect the quality of the plating. Furthermore, the operator has to replenish the solid metal while monitoring the decrease in the liquid level of the molten metal with the naked eye, making the work difficult.

〔発明が解決せんとする問題点〕[Problem that the invention seeks to solve]

本発明はかかる現状に鑑み鋭意研究を行った結果、外気
と遮断された密閉型溶解槽内にて固体金属を溶解せしめ
ると共に溶湯のレベルが低下し溶湯の減少した分だけ自
動的にして且つ迅速に補給せんとする方法である。As a result of extensive research in view of the current situation, the present invention has been developed by melting solid metal in a closed melting tank that is isolated from the outside air, and at the same time, the level of the molten metal decreases. This is a method of replenishing.

〔問題点を解決するための手段〕[Means for solving problems]

本発明ナスはメッキ用溶湯を注入した密閉型金属溶解槽
の内部又は外部に該溶湯と接触することなくインゴット
及びインゴット用ヒータを設置し且つ該溶解槽内に溶湯
液面制御用レベルセンサを装着し、該ヒータとレベルセ
ンサとを連動せしめ該溶湯の液面を該センサにて検知し
、上記インゴットを溶解してその金属溶解量を制御しつ
つ溶湯を規定液面に調整することを特徴とするものであ
る。In the eggplant of the present invention, an ingot and an ingot heater are installed inside or outside a closed metal melting tank into which molten metal for plating is poured without coming into contact with the molten metal, and a level sensor for controlling the molten metal level is installed in the melting tank. The heater is linked with a level sensor, the liquid level of the molten metal is detected by the sensor, and the molten metal is adjusted to a specified liquid level while melting the ingot and controlling the amount of metal melted. It is something to do.

本発明においてインゴット及びインゴット用ヒータは必
ずしも金属溶解槽内に設置する必要はなく、核種の外部
（設置してもよい。その場合には外気と遮断された溶解
室を別途に設け、溶解室と溶解槽とを連通管にて接続す
ることが好ましい。In the present invention, the ingot and the ingot heater do not necessarily need to be installed inside the metal melting tank, but may be installed outside the nuclide (in that case, a separate melting chamber shut off from the outside air is provided, and the melting chamber and ingot heater are installed outside the metal melting tank. It is preferable to connect the dissolution tank with a communication pipe.

又レベルセンサはメッキ用溶湯を被メツキ線条体面に被
着するに伴りて該溶湯の液面が変動するを検知し常時溶
湯の液面を一定の範囲に保持しうるようにしているもの
である。従りてセンサーは通常２本を所望の段差を設け
て装着しているものであり一方をその先端が最高の液面
に達する位置に、他方をその先端が最低の液面に達する
位置に設けておけばよい。なおセンサー内にはヒータを
入れておき溶湯がセンサーに耐着して固化することによ
り誤動作をしないようにしである。In addition, the level sensor detects fluctuations in the level of the molten metal as it is deposited on the surface of the filament to be plated, and is designed to maintain the level of the molten metal within a constant range at all times. It is. Therefore, two sensors are usually installed with a desired difference in level, one at the position where the tip reaches the highest liquid level, and the other at the position where the tip reaches the lowest liquid level. Just leave it there. A heater is placed inside the sensor to prevent the molten metal from adhering to the sensor and solidifying it, thereby preventing malfunctions.

又本発明方法は金属溶解槽の近傍に被メツキ線条体が走
行するホットディップ槽を設け、該槽内に該溶湯をポン
プ等を介して供給し、該線条体にメッキを施すものであ
る。In addition, the method of the present invention provides a hot dip bath in which the filament to be plated runs in the vicinity of the metal melting bath, and supplies the molten metal into the bath via a pump or the like to plate the filament. be.

〔作用〕[Effect]

本発明は溶湯液面レベルセンサとインゴット用ヒータと
を連通せしめることによって、該センサによって検知さ
れた液面変動に伴って直ちにヒータを作動せしめうるか
らインｆｌＦを加熱した溶解金属を自動的且つ迅速に補
給することが出来るものである。In the present invention, by communicating the molten metal level sensor and the ingot heater, the heater can be activated immediately in response to a change in the liquid level detected by the sensor, so that the molten metal that has heated the ingot can be heated automatically and quickly. It is possible to replenish the

〔実施例〕〔Example〕

第２図に示す如く外気と遮断し且つ不活性ガスを満九し
た金属溶解槽７とホットディップ槽１とからなるホ、ト
デイ、プ装置において、溶解槽７中の溶湯例えば錫５を
ポンプ８によりホ、トデイ、デ檜１に送り、該槽内を走
行する被メツキ用線条体例えば鋼線２に接触被着してメ
ッキを行った。As shown in FIG. 2, in the apparatus consisting of a metal melting tank 7 sealed off from outside air and filled with inert gas and a hot dip tank 1, the molten metal, for example, tin 5 in the melting tank 7 is pumped 8. Then, it was sent to the tank 1, and was plated by contacting and depositing it on a filament to be plated, for example, a steel wire 2, running in the tank.

而して被メツキ線条体に被着されたメッキの分だけ溶解
槽７内の溶湯５のレベルが徐々に低下する。溶解槽７内
にはレベルセンサ９及び１０を所望の段差を設けて溶湯
５に接触しておき、一方固体金属６を溶湯に接触しない
位置に設けておく。Thus, the level of the molten metal 5 in the melting tank 7 gradually decreases by the amount of plating applied to the filament to be plated. In the melting tank 7, level sensors 9 and 10 are provided with a desired difference in level so as to be in contact with the molten metal 5, while the solid metal 6 is provided at a position that does not come into contact with the molten metal.

上記の如く溶湯５が低下して溶湯液面がレベルセンサ９
と離れることによりインゴットヒータ１１が作動し、該
ヒータによ〕インゴ、トロが加熱されこれを溶解し、溶
解金属となりて溶解槽７内に流入するから、該槽内の溶
湯液面は徐々に上昇し、レベルセンサ１０に達すること
により自動的にインゴットヒータ１１との間が切断され
、インプット６の加熱は停止され溶解金属の流入は終了
する。このような操作を繰シ返して本発明方法は溶解金
属を補給するものである。As mentioned above, the molten metal 5 is lowered and the molten metal liquid level is detected by the level sensor 9.
The ingot heater 11 is activated by the ingot heater 11, which heats and melts the ingot and the ingot, which become molten metal and flow into the melting tank 7, so that the liquid level of the molten metal in the tank gradually increases. When it rises and reaches the level sensor 10, it is automatically disconnected from the ingot heater 11, heating of the input 6 is stopped, and the inflow of molten metal is terminated. The method of the present invention replenishes molten metal by repeating such operations.

〔効果〕〔effect〕

以上詳述した如く本発明方法によれば溶湯にノロを発生
せしめることがないから、メッキ製品において優れた品
質を有し且ロスをすることがない。又補給するための溶
解金属は、固体金属を溶解せしめた後に補給するから溶
湯に温度変化を生ぜしめることなくメッキ品質上に何等
悪影響を及ぼさない。更に溶解金属の補給を自動的に且
つ迅速に行りうるため作業性が著しく向上する等顕著な
効果を有する。As detailed above, according to the method of the present invention, no slag is generated in the molten metal, so that the plated product has excellent quality and is free from loss. Further, since the molten metal for replenishment is replenished after the solid metal has been melted, there is no change in temperature of the molten metal, and there is no adverse effect on the plating quality. Furthermore, since the molten metal can be replenished automatically and quickly, there are significant effects such as a marked improvement in work efficiency.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来のホットディ、プ装置により線条体九メッ
キを施す概略説明図、第２図は本発明方法によるホ、ト
ｙイッデ装置によル線条体にメッキを施す概略説明図で
ある。 １・・・ホ、トデイ、デ槽、２・・・線条体、３・・・
ローラ、４・・・ダイス、５・・・溶湯、６・・・固体
金属、７・・・溶解槽、８・・・ポンプ、９．１０・・
・レベルセンサー、１１・・・インゴット用ヒータ、１
２・・・ヒータ。 出願人代理人　　弁理士　鈴　江　武　彦第１図 第２図Fig. 1 is a schematic explanatory diagram of plating a filament body using a conventional hot dip device, and Fig. 2 is a schematic explanatory diagram of plating a filament body using a hot dipping device according to the present invention. be. 1... E, today, D cistern, 2... Striatum, 3...
Roller, 4... Dice, 5... Molten metal, 6... Solid metal, 7... Melting tank, 8... Pump, 9.10...
・Level sensor, 11... Ingot heater, 1
2... Heater. Applicant's representative Patent attorney Takehiko Suzue Figure 1 Figure 2

Claims (1)

【特許請求の範囲】[Claims] メッキ用溶湯を注入した密閉型金属溶解槽の内部又は外
部に該溶湯と接触することなくインゴット及びインゴッ
ト用ヒータを設置し且つ該溶解槽内に溶湯液面制御用レ
ベルセンサを装着し、該ヒータとレベルセンサとを連動
せしめ、該溶湯の液面を該センサにて検知し、上記イン
ゴットを溶解してその金属溶解量を制御しつつ溶湯を規
定液面に調整することを特徴とするメッキ用溶解金属の
補給方法。An ingot and an ingot heater are installed inside or outside a closed metal melting tank into which molten metal for plating is poured without coming into contact with the molten metal, and a level sensor for controlling the molten metal level is installed in the melting tank, and the heater and a level sensor are linked, the liquid level of the molten metal is detected by the sensor, and the molten metal is adjusted to a specified liquid level while melting the ingot and controlling the amount of metal melted. How to replenish molten metal.