JPS6224849A - Casting temperature detector - Google Patents
Casting temperature detectorInfo
- Publication number
- JPS6224849A JPS6224849A JP16372685A JP16372685A JPS6224849A JP S6224849 A JPS6224849 A JP S6224849A JP 16372685 A JP16372685 A JP 16372685A JP 16372685 A JP16372685 A JP 16372685A JP S6224849 A JPS6224849 A JP S6224849A
- Authority
- JP
- Japan
- Prior art keywords
- casting
- temp
- temperature
- molten metal
- signal
- 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.)
- Granted
Links
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、遠心力鋳造法による複層管の製造時において
、回転金型に鋳込まれた溶湯の温度を検出し、予め設定
された温度に達すると信号を発生し、その内面に鋳込む
べき後の溶湯の鋳込みタイミングを知らせる鋳込み温度
検知装置に関する。[Detailed Description of the Invention] (Industrial Application Field) The present invention detects the temperature of molten metal cast into a rotary mold during the manufacture of multilayer pipes by centrifugal force casting, and adjusts the temperature to a preset value. The present invention relates to a casting temperature detection device that generates a signal when the temperature reaches that temperature, and notifies the timing of pouring a subsequent molten metal into the inner surface of the device.
（従来の技術と問題点）
遠心力鋳造法により異材質の層が同心状に一体形成され
た複層管が製造されている。例えば、二層管では、回転
金型に外層材溶湯を鋳込み、しばらく冷却しである一定
の温度に達した時に外層の内面に内層材溶湯の鋳込みを
行う。この際、外層材と内層材とを冶金学的に溶着一体
化させるには、外層材の温度がある一定の温度になった
とき、タイミングよく内層材溶湯を鋳込む必要がある。(Prior Art and Problems) Multilayer pipes in which layers of different materials are integrally formed concentrically are manufactured by centrifugal casting. For example, in the case of a two-layer pipe, the molten outer layer material is cast into a rotary mold, and when it cools for a while and reaches a certain temperature, the molten inner layer material is poured into the inner surface of the outer layer. At this time, in order to metallurgically weld and integrate the outer layer material and the inner layer material, it is necessary to cast the molten inner layer material in a timely manner when the temperature of the outer layer material reaches a certain temperature.
しかし、多元素成分の金属材料の正確な凝固温度は理論
的に解明されておらず、内層材溶湯の鋳込みタイミング
を決定することが困難であった。However, the exact solidification temperature of multi-element metal materials has not been theoretically elucidated, and it has been difficult to determine the casting timing of the molten metal for the inner layer material.
すなわち、実験的に求められた外層材の凝固温度に基づ
いて内層材溶湯の鋳込みタイミングを決定しても、回転
金型中の外層材の温度を放射温度計で測定した場合、鋳
込み時の煙、粉塵等により測定誤差が大きく、又連続的
に測定することが出来ず、鋳込みタイミングを失する場
合が多々あった。In other words, even if the casting timing of the molten inner layer material is determined based on the experimentally determined solidification temperature of the outer layer material, if the temperature of the outer layer material in the rotating mold is measured with a radiation thermometer, the smoke during casting will be The measurement error was large due to dust, etc., and continuous measurement was not possible, and the timing of casting was often lost.
本発明はかかる問題に鑑みなされたもので、複層管の遠
心力鋳造において、先の鋳造層の内面に鋳込まれる後の
鋳造層の鋳込みタイミングを適確に知らしめる検知装置
を提供することを目的とする。The present invention has been made in view of this problem, and an object of the present invention is to provide a detection device that accurately indicates the casting timing of a subsequent casting layer that is cast into the inner surface of the previous casting layer in centrifugal force casting of a multilayer pipe. With the goal.
（問題点を解決するための手段）
上記目的を達成するための本発明の手段は、鋳込み温度
検知装置を金型に鋳込まれた溶湯の温度を測定するため
の温度測定センサーと、測定信号を増幅すると共にＡ／
Ｄ変換する増幅変換器と、変換信号と鋳込み温度設定器
から入力された設定信号とを比較演算して設定温度一致
信号を発生するコントローラーと、測定温度表示器およ
び設定温度一致表示器とで構成した点にある。(Means for Solving the Problems) The means of the present invention for achieving the above object includes a casting temperature detection device, a temperature measurement sensor for measuring the temperature of molten metal poured into a mold, and a measurement signal. A/
Consists of an amplification converter that performs D conversion, a controller that generates a set temperature match signal by comparing and calculating the conversion signal and the setting signal input from the casting temperature setting device, and a measured temperature display and a set temperature match display. That's the point.
（実施例）
第１図は、遠心力鋳造装置と本発明を構成する検知装置
の説明図である。(Example) FIG. 1 is an explanatory diagram of a centrifugal force casting apparatus and a detection device constituting the present invention.
回転金型１はローラー２上に載置されると共に高速回転
され、その内部に注湯樋４を介して取鍋３から、複層管
の鋳造層を形成すべく所定の金属溶湯が注湯される。The rotary mold 1 is placed on rollers 2 and rotated at high speed, and a predetermined amount of molten metal is poured into the mold from a ladle 3 via a pouring gutter 4 to form a cast layer of a multilayer pipe. be done.
５は、金型１の内部に注湯された溶湯に指向して設けら
れた温度測定センサーであり、該センサー５により検出
された測定信号（アナログ信号）は増幅変換器６により
増幅されると共にＡ／Ｄ変換される。Reference numeral 5 denotes a temperature measurement sensor provided to face the molten metal poured into the mold 1, and the measurement signal (analog signal) detected by the sensor 5 is amplified by an amplification converter 6 and A/D conversion is performed.
該増幅変換器６により伝送される変換信号は、コントロ
ーラー７に入力され、鋳込み温度設定器８により予め設
定された設定信号と比較演算され、一致すると設定温度
一致信号を発生させ、例えば、ブザー、ランプ等の設定
温度一致表示器により表示され、後の鋳造層の鋳込みタ
イミングを知らせる。The conversion signal transmitted by the amplification converter 6 is input to the controller 7, and is compared with a setting signal preset by the casting temperature setting device 8, and if they match, a set temperature matching signal is generated, and, for example, a buzzer, It is displayed by a set temperature coincidence indicator such as a lamp, and informs the casting timing of the next casting layer.
コントローラー７による比較演算に際して、コントロー
ラー７には鋳込時の煙、粉塵等のノイズ成分をカントす
るプログラムが組み込まれており、変換信号から目的の
温度情報のみが抽出され、この情報により設定値と比較
される。When performing comparison calculations by the controller 7, the controller 7 has a built-in program to cant noise components such as smoke and dust during casting, and only the desired temperature information is extracted from the conversion signal, and this information is used to calculate the set value and be compared.
また、コントローラー７には、前記温度情報を表示する
ための測定温度表示器が接続され、測定温度を常時モニ
ターできるようになっている。従って、新材質で凝固温
度が不明な材質でも、鋳込み後の測定温度をモニターす
ることにより、凝固温度及びその終了時点を知ることが
でき、予備実験を行うことなく、後の鋳造材の鋳込みタ
イミングを容易に知ることができる。Further, a measured temperature display for displaying the temperature information is connected to the controller 7, so that the measured temperature can be constantly monitored. Therefore, even if the solidification temperature is unknown for a new material, by monitoring the temperature measured after casting, it is possible to know the solidification temperature and the end point of the solidification temperature, and the casting timing of the subsequent casting material can be determined without conducting preliminary experiments. can be easily known.
更に、コントローラー７は演算処理をするので、作業終
了後でも、各点の温度、時間をメモリーよりアウトプッ
トできるから、鋳造データの検討、保存を容易に行うこ
とができる。Furthermore, since the controller 7 performs arithmetic processing, the temperature and time at each point can be output from the memory even after the work is completed, making it easy to examine and save casting data.
第２図は、二層遠心力鋳造の場合の金型中の鋳造材の温
度と時間との関係を示す図であり、本発明の検知装置に
より測定温度をモニターした結果である。図において、
Ｐ、は外層材鋳込開始点、Ｔ、は外層材鋳込時最高到達
温度、Ｔ２は外層材凝固開始温度、Ｓｌは内層材鋳込み
設定温度、Ｐ２は内層材鋳込み開始点である。FIG. 2 is a diagram showing the relationship between the temperature of the cast material in the mold and time in the case of double-layer centrifugal casting, and is the result of monitoring the temperature measured by the detection device of the present invention. In the figure,
P is the starting point for casting the outer layer material, T is the maximum temperature reached during casting of the outer layer material, T2 is the solidification start temperature of the outer layer material, Sl is the set temperature for casting the inner layer material, and P2 is the starting point for casting the inner layer material.
（発明の効果）
以上説明した通り二本発明の鋳込み温度検知装置によれ
ば、鋳込み時の煙、粉塵等の影響を受けに＜＜、非接触
で正確な測温が可能となり、先の鋳造層の内面に鋳込ま
れる後の鋳造層の鋳込みタイミングを適確に知ることが
できる。また、測定温度が連続で表示されるので、凝固
速度及び設定温度までの差が判明でき、更に新材質等で
凝固温度が不明な材質でも、鋳込後の時間と凝固開始温
度が常時測定可能になり、適確な鋳込みタイミングを知
ることができる。(Effects of the Invention) As explained above, according to the casting temperature detection device of the present invention, it is possible to accurately measure the temperature without contact, regardless of the effects of smoke, dust, etc. during casting, and The casting timing of the cast layer after being cast onto the inner surface of the layer can be accurately known. In addition, since the measured temperature is displayed continuously, it is possible to determine the solidification rate and the difference between the set temperature and the time after casting and solidification start temperature can be measured at all times, even for new materials whose solidification temperature is unknown. This allows you to know the correct casting timing.
第１図は遠心力鋳造装置と鋳込み温度検知装置の説明図
、第２図は二層遠心力鋳造における全型内温度と鋳込後
の時間との関係を示す図である。
１・・・回転金型、５・・・温度測定セン毎−１６・・
・増幅変換器、７・・・コントローラー、８・・・鋳込
み温度設定器、９・・・測定温度表示器、１０・・・設
定温度一致表示器。
特 許 出 願 人 久保田鉄工株式会社、１；；、
！二FIG. 1 is an explanatory diagram of a centrifugal casting device and a casting temperature detection device, and FIG. 2 is a diagram showing the relationship between the total internal mold temperature and the time after casting in two-layer centrifugal casting. 1...Rotating mold, 5...Temperature measurement sensor -16...
- Amplification converter, 7... Controller, 8... Casting temperature setting device, 9... Measured temperature indicator, 10... Set temperature coincidence indicator. Patent applicant: Kubota Iron Works Co., Ltd., 1;
! two
Claims (1)
の溶湯の温度を非接触で連続的に測温表示すると共に、
あらかじめ設定した温度に達すると設定温度一致信号を
発生かつ表示し、後の溶湯の鋳込みタイミングを知らせ
る検知装置であって、金型に鋳込まれた溶湯の温度を測
定するための温度測定センサーと、測定信号を増幅する
と共にＡ／Ｄ変換する増幅変換器と、変換信号と鋳込み
温度設定器から入力された設定信号とを比較演算して設
定温度一致信号を発生するコントローラーと、測定温度
表示器および設定温度一致表示器とからなることを特徴
とする鋳込み温度検知装置。1. In multi-layer centrifugal casting, the temperature of the molten metal cast into the rotating mold is continuously measured and displayed without contact.
This is a detection device that generates and displays a preset temperature match signal when a preset temperature is reached, and notifies the timing of pouring the next molten metal. , an amplification converter that amplifies the measurement signal and A/D converts it; a controller that compares and calculates the conversion signal with the setting signal input from the casting temperature setting device to generate a setting temperature matching signal; and a measurement temperature display. and a set temperature coincidence indicator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16372685A JPS6224849A (en) | 1985-07-23 | 1985-07-23 | Casting temperature detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16372685A JPS6224849A (en) | 1985-07-23 | 1985-07-23 | Casting temperature detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6224849A true JPS6224849A (en) | 1987-02-02 |
| JPH0238059B2 JPH0238059B2 (en) | 1990-08-28 |
Family
ID=15779494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16372685A Granted JPS6224849A (en) | 1985-07-23 | 1985-07-23 | Casting temperature detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6224849A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109158569A (en) * | 2018-09-28 | 2019-01-08 | 新兴铸管股份有限公司 | Water-cooling type ductile iron pipe centrifuge and its control system |
| CN113042701A (en) * | 2021-04-27 | 2021-06-29 | 燕山大学 | Temperature detection device suitable for centrifugal casting of roller |
| CN115464112A (en) * | 2022-09-16 | 2022-12-13 | 哈尔滨工业大学 | Ultra-large cylinder sleeve accurate water-cooling temperature-control centrifugal casting device and casting method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5570458A (en) * | 1978-11-22 | 1980-05-27 | Kubota Ltd | Production of spheroidal graphite cast iron pipe |
-
1985
- 1985-07-23 JP JP16372685A patent/JPS6224849A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5570458A (en) * | 1978-11-22 | 1980-05-27 | Kubota Ltd | Production of spheroidal graphite cast iron pipe |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109158569A (en) * | 2018-09-28 | 2019-01-08 | 新兴铸管股份有限公司 | Water-cooling type ductile iron pipe centrifuge and its control system |
| CN109158569B (en) * | 2018-09-28 | 2020-12-22 | 新兴铸管股份有限公司 | Water-cooled type nodular cast iron pipe centrifuge and control system thereof |
| CN113042701A (en) * | 2021-04-27 | 2021-06-29 | 燕山大学 | Temperature detection device suitable for centrifugal casting of roller |
| CN115464112A (en) * | 2022-09-16 | 2022-12-13 | 哈尔滨工业大学 | Ultra-large cylinder sleeve accurate water-cooling temperature-control centrifugal casting device and casting method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0238059B2 (en) | 1990-08-28 |
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