JPS6058762B2 - Method and device for circulating cooling liquid for quenching - Google Patents
Method and device for circulating cooling liquid for quenchingInfo
- Publication number
- JPS6058762B2 JPS6058762B2 JP323181A JP323181A JPS6058762B2 JP S6058762 B2 JPS6058762 B2 JP S6058762B2 JP 323181 A JP323181 A JP 323181A JP 323181 A JP323181 A JP 323181A JP S6058762 B2 JPS6058762 B2 JP S6058762B2
- Authority
- JP
- Japan
- Prior art keywords
- water tank
- quenching
- coolant
- cooling
- heat exchanger
- 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
- 238000010791 quenching Methods 0.000 title claims description 34
- 230000000171 quenching effect Effects 0.000 title claims description 34
- 239000000110 cooling liquid Substances 0.000 title claims description 22
- 238000000034 method Methods 0.000 title claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 94
- 239000002826 coolant Substances 0.000 claims description 63
- 238000001816 cooling Methods 0.000 claims description 13
- 239000000498 cooling water Substances 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 description 6
- 101500027295 Homo sapiens Sperm histone HP3 Proteins 0.000 description 1
- 102400000926 Sperm histone HP3 Human genes 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002436 steel type Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/62—Quenching devices
- C21D1/63—Quenching devices for bath quenching
- C21D1/64—Quenching devices for bath quenching with circulating liquids
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Control Of Heat Treatment Processes (AREA)
Description
【発明の詳細な説明】
本発明は熱交換器付き床上水槽から暁天れ用冷 却液
が供給され、暁天れ冷却に使用された後は上記水槽へ還
流されるような焼入装置における暁天れ用冷却液の循環
方法および装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a heat exchanger for a quenching apparatus in which a cooling liquid for lightening is supplied from an above-the-floor water tank equipped with a heat exchanger, and is returned to the water tank after being used for light cooling. The present invention relates to a cooling liquid circulation method and device.
従来この種の焼入装置における水または水溶性暁天れ
冷却剤を用いた暁天れ用冷却液の循環回路は、第１図に
示されるように構成されている。床上に設けられている
水槽１１内の冷却液ＣＷ、は、暁天れ操作工程に応じて
間欠的に動作するポンプＰ、により汲み上げられ、管路
Ａを通つて焼入機Ｈにおける被加熱材に噴射され、これ
を急冷したのち冷却液受け２に流下し、ついで冷却液受
け２と管路Ｂで導通する補助水槽３１に流入滞留し、当
該補助水槽３１内の滞留量が所定以上となると、これを
検知して動作となるポンプＰ。′によつて汲み上げられ
て水槽１１へ管路Ｃを経て還流する。一方水槽１１内の
冷却液ＣＷ、は暁天れに使用されて昇温した冷却液ＣＷ
２の流入によつて液温が次第に上昇するのを防止するた
め、ポンプＰ。により汲み上げられ管路Ｄを介して熱交
換器４”内に導かれ、当該熱交換器４によつて奮然冷却
されて水槽１１内へと循環せしめられている。 上記冷
却液の循環回路では補助水槽３１の容量は水槽１１に比
べ極めて少に設定されている。何故ならば暁天れに使用
して昇温した冷却液ＣＷ。がポンプＰ２によつて一時に
かつ多量に水槽１１内に流入すると水槽１１内の冷却液
ＣＷ、の液温を一時的に高めることとなり、水槽１１内
の冷却液ＣＷ、の温度に変動を生じさせ、被加熱材に対
する冷却条件を不均一とするからである。従つて焼入れ
冷却に使用済みの冷却液ＣＷ２の水槽１１への流入は水
槽１１内の冷却液ＣＷｌに大きな温度差の変動を与えな
い程度に少容量の補助水槽３１から少量ずつ行うように
なつているが、そのための循環回路の設計は極めて複雑
であり、かつ充分な設計に基づいて作られた回路であつ
ても水槽１１内の冷却液ＣＷｌの液温の変動は昇温した
冷却液と奪熱された冷却液との両者が流入するという回
路構造上から避け得ないところであつた。また、少容量
の補助水槽３１から間欠的に使用済みの冷却液ＣＷ２を
汲み上げるポンプＰ２″は極めて頻繁な入り切りがなさ
れることとなり、電力エネルギー消費が極めて大である
ばかりか、損耗がはげしく、かつ故障も発生し易いとい
う欠点があつた。本発明は上述した従来焼入れ用冷却液
循環回路に存する欠点を解消した新規な焼入れ用冷却液
の循環方法および装置を提供するものである。Conventionally, a circulation circuit for a dawn coolant using water or a water-soluble dawn coolant in this type of quenching apparatus has been constructed as shown in FIG. The coolant CW in the water tank 11 provided on the floor is pumped up by a pump P that operates intermittently according to the dawn operation process, and is passed through the pipe A to the material to be heated in the quenching machine H. After being injected and rapidly cooled, it flows down into the coolant receiver 2, and then flows into and accumulates in the auxiliary water tank 31 which is connected to the coolant receiver 2 through the pipe B, and when the amount of accumulation in the auxiliary water tank 31 exceeds a predetermined value, Pump P detects this and starts operating. ' and returns to the water tank 11 via pipe C. On the other hand, the coolant CW in the water tank 11 is the coolant CW whose temperature has been increased by being used in the dawn weather.
Pump P to prevent the liquid temperature from gradually rising due to the inflow of water. The coolant is pumped up and guided into the heat exchanger 4'' via the pipe D, where it is vigorously cooled and circulated into the water tank 11. In the above-mentioned cooling liquid circulation circuit, The capacity of the auxiliary water tank 31 is set to be extremely small compared to the water tank 11. This is because the coolant CW, which has been heated during the dawn, flows into the water tank 11 at once and in large quantities by the pump P2. This is because the temperature of the coolant CW in the water tank 11 will be temporarily increased, causing fluctuations in the temperature of the coolant CW in the water tank 11, and making the cooling conditions for the heated material non-uniform. Therefore, the coolant CW2 used for quenching cooling is introduced into the water tank 11 in small amounts from the auxiliary water tank 31, which has a small capacity, to the extent that it does not cause a large temperature difference in the coolant CWl in the water tank 11. However, the design of the circulation circuit for this purpose is extremely complicated, and even if the circuit is created based on a sufficient design, fluctuations in the temperature of the coolant CWl in the water tank 11 will cause the temperature of the coolant to rise. This was unavoidable due to the circuit structure in which both the heat-absorbed coolant and the coolant flowed in. In addition, the pump P2'', which intermittently pumps up the used coolant CW2 from the small-capacity auxiliary water tank 31, was pumped extremely frequently. This results in a large amount of power and energy consumption, as well as high wear and tear and a high tendency for failures to occur. The present invention provides a novel method and apparatus for circulating a quenching coolant that eliminates the drawbacks of the conventional quenching coolant circulation circuit described above.
本発明を第２図に示す実施例に従つて説明する。１は水
槽であり、当該水槽１内の冷却液ＣＷは焼入れ操作工程
に応じて間欠的に動作するポンプＰ１により汲み上げら
れ、管路Ａを通つて焼入機Ｈにおける被加熱材に噴射さ
れ、これを急冷したのち冷却液受け２に流下し、冷却液
受け２と管路Ｂて導通する補助水槽３に流入することは
従来と同様てある。The present invention will be explained according to the embodiment shown in FIG. 1 is a water tank, and the coolant CW in the water tank 1 is pumped up by a pump P1 that operates intermittently according to the quenching operation process, and is injected through the pipe A to the material to be heated in the quenching machine H. After being rapidly cooled, it flows down into the coolant receiver 2 and flows into the auxiliary water tank 3 which is connected to the coolant receiver 2 through the pipe line B, as in the conventional case.
しかし、本発明は従来と異なり、水槽１の上方所定位置
に溢水口５が設けられ、かつ上記補助水槽３は所定容量
を収容可能に設定されると共に水槽１に隣接して設置さ
れ、溢水口５の開口端が補助水槽３の上方にある如く構
成される。この場合補助水槽３を水槽１より離れた位置
に設け、当該補助水槽３と上記溢水口５の開口端とを管
材て接続する構成としてもよい。また本発明では水槽１
の上方に設けられた熱交換器４は管．路Ｅに介装されて
おり、補助水槽３内の冷却液がポンプＰ２で汲み上げら
れ、当該熱交換器４内を通つて水槽１へ流入可能に構成
されている。更に冷却液循環装置へ投入される冷却液Ｃ
Ｗの量は溢水口５によつて定まる水槽１の所定水位Ｌ・
を保持するに必要な量と焼入れ操作時に必要な量との和
を越える所定量に設定される。However, the present invention differs from the conventional art in that an overflow port 5 is provided at a predetermined position above the water tank 1, and the auxiliary water tank 3 is set to be capable of accommodating a predetermined capacity and is installed adjacent to the water tank 1. The opening end of 5 is located above the auxiliary water tank 3. In this case, the auxiliary water tank 3 may be provided at a position apart from the water tank 1, and the auxiliary water tank 3 and the open end of the overflow port 5 may be connected using a pipe. In addition, in the present invention, the water tank 1
The heat exchanger 4 installed above the pipe is a tube. The coolant in the auxiliary water tank 3 is pumped up by a pump P2 and is configured to flow into the water tank 1 through the heat exchanger 4. Furthermore, the coolant C is introduced into the coolant circulation system.
The amount of W is determined by the predetermined water level L of the water tank 1 determined by the overflow port 5.
The amount is set to a predetermined amount that exceeds the sum of the amount required to hold and the amount required during the quenching operation.
尚水槽１における管路Ａの取水口Ａｉと同一レベルの内
壁には液温センサーＳをとりつけ、当該液温センサーＳ
により冷却液ＣＷの温度を検出し、液温センサーＳの発
する検出信号に基づいて冷却液ＣＷの温度が所定温度を
保持するように熱交換器４への冷却水４１の流量調節ま
たは供給停止を制御する流量制御装置６を設けられるな
らば更に好ましい。上記の構成からなる本願を実施する
場合を次に述べる。焼入機の操作に先立つて所定量の冷
却液を水槽１内に投入する。水槽１内に投入される冷却
液ＣＷが溢水口５によつて設定されている所定ｊ水位Ｌ
を超えると冷却液ＣＷは溢水口５より補助水槽３内へ流
入し始める。尚補助水槽３へ流入した冷却液ＣＷは当該
補助水槽３と導通している冷却液受け２へも流入するこ
とは勿論である。補助水槽３内へ流入した冷却液ＣＷ３
の量が所定水位に達した時点でポンプＰ２のスイッチを
入れ動作とする。この時点で水槽１内への所定量の冷却
液の投入は完了しており、水位は所定水位Ｌとほぼ同一
かや）上となつている。それ故ポンプＰ２の動作によつ
て補助水槽３の冷却液ＣＷ３は汲み上げら・れ管路Ｅに
導かれて熱交換器４を経て水槽１に還流し、当該水槽１
の所定水位を高め、所定水位を超えた分は溢水口５より
流出し、補助水槽３へと流入する。かくして水槽１→補
助水槽３→熱交換器４→水槽１へと冷却液ＣＷは恒常的
に循環することとなり、これにより上記熱交換器４へ供
給される冷却水４１と熱交換が行われ、当該冷却水４１
とほぼ同一液温の冷却液ＣＷが常に水槽１にたたえられ
ていることとなる。この状態において焼入機Ｈを始動す
る。焼入れ操作工程に従つてポンプＰ１は間欠的に動作
となつて管路Ａを介して被加熱材へ冷却液ＣＷが噴射さ
れるが、当該冷却液ＣＷの液温は上記の如く冷却水４１
の水温とほぼ同一てある。焼入れに使用され温度の上昇
した冷却液ＣＷ２は焼入機Ｈにおける冷却液受け２に流
下し管路Ｂを経て補助水槽３へ流入し、溢水口５より流
下した冷却液ＣＷと混合する。補助水槽３の容量は所定
容量に設定されているので一時的に増量するが槽外へ溢
出することはない。一方水槽１の冷却液ＣＷはポンプＰ
１の汲み上げに応じて一時的に減量され、或いは溢水口
５より補助水槽３への溢流が一時中断される場合もある
が、常時稼動中のポンプＰ２により、溢流した冷却液Ｃ
Ｗ２との混合した冷却液ＣＷ３が汲み上げられ、熱交換
器４を介する管路Ｅから奪熱冷却済みの冷却液ＣＷが直
ちに還流されて補充されるのでその水位を復元する。従
つて水槽１内の冷却液ＣＷは常に一定の温度を保持する
と共に、当該冷却液ＣＷを用いた一定の冷却条件のもと
に焼入れ冷却操作が繰り返され、この間ポンプＰ２は連
続動作して熱交．換器４で奪熱され熱交換器４へ供給さ
れる冷却水とほぼ同一温度になつている冷却液を水槽１
へ還流し続ける。尚例えば被加熱材の鋼種により、また
は寒冷時に熱交換器４へ供給される冷却水が低温のため
、冷却液ＣＷの温度を熱交換器４へ供給−する冷却水４
１の温度より高めたい場合などには、液温センサーＳと
流量制御装置６とを使用し、液温センサーＳが検出する
水槽１内の冷却液ＣＷの温度を、予め設定した温度を保
持するように流量制御装置６を連動させ、熱交換器４へ
供給する冷却水４１の流量を減少または停止するように
して高めることも容易である。本発明がもたらす効果は
次のとおりてある。A liquid temperature sensor S is attached to the inner wall of the water tank 1 at the same level as the water intake port Ai of the pipe A.
detects the temperature of the coolant CW, and adjusts the flow rate or stops the supply of the coolant 41 to the heat exchanger 4 so that the temperature of the coolant CW is maintained at a predetermined temperature based on the detection signal generated by the liquid temperature sensor S. It is further preferable if a flow rate control device 6 for controlling the flow rate is provided. A case in which the present application having the above configuration is implemented will be described next. Prior to operation of the quenching machine, a predetermined amount of cooling liquid is poured into the water tank 1. The coolant CW introduced into the water tank 1 reaches a predetermined water level L set by the overflow port 5.
When the temperature exceeds 1, the coolant CW starts to flow into the auxiliary water tank 3 from the overflow port 5. It goes without saying that the coolant CW that has flowed into the auxiliary water tank 3 also flows into the coolant receiver 2 that is in communication with the auxiliary water tank 3. Coolant CW3 flowing into the auxiliary water tank 3
When the amount of water reaches a predetermined water level, pump P2 is turned on and operated. At this point, the predetermined amount of cooling liquid has been poured into the water tank 1, and the water level is approximately at or above the predetermined water level L. Therefore, by the operation of the pump P2, the coolant CW3 in the auxiliary water tank 3 is pumped up, guided to the pipe E, and returned to the water tank 1 via the heat exchanger 4.
A predetermined water level is raised, and the water exceeding the predetermined water level flows out from the overflow port 5 and flows into the auxiliary water tank 3. In this way, the coolant CW is constantly circulated from the water tank 1 to the auxiliary water tank 3 to the heat exchanger 4 to the water tank 1, thereby exchanging heat with the cooling water 41 supplied to the heat exchanger 4. The cooling water 41
This means that the water tank 1 is always filled with cooling liquid CW having approximately the same liquid temperature as . In this state, the hardening machine H is started. According to the quenching operation process, the pump P1 operates intermittently to inject the coolant CW to the heated material through the pipe A, but the temperature of the coolant CW is lower than the coolant 41 as described above.
It is almost the same as the water temperature. The coolant CW2 used for quenching and whose temperature has increased flows down into the coolant receiver 2 in the quenching machine H, flows into the auxiliary water tank 3 via the pipe B, and mixes with the coolant CW flowing down from the overflow port 5. Since the capacity of the auxiliary water tank 3 is set to a predetermined capacity, the amount increases temporarily but does not overflow to the outside of the tank. On the other hand, the coolant CW in water tank 1 is pumped by pump P.
1, or the overflow from the overflow port 5 to the auxiliary water tank 3 may be temporarily interrupted.
The coolant CW3 mixed with W2 is pumped up, and the coolant CW that has been cooled by heat removal is immediately refluxed from the pipe E via the heat exchanger 4 to be replenished, thereby restoring the water level. Therefore, the coolant CW in the water tank 1 always maintains a constant temperature, and the quenching cooling operation is repeated under constant cooling conditions using the coolant CW, and during this period, the pump P2 operates continuously to remove heat. Interchange. The cooling liquid, which has been heat removed by the exchanger 4 and has almost the same temperature as the cooling water supplied to the heat exchanger 4, is transferred to the water tank 1.
continues to flow back to. For example, depending on the steel type of the material to be heated or because the cooling water supplied to the heat exchanger 4 in cold weather is low temperature, the cooling water 4 that supplies the temperature of the cooling liquid CW to the heat exchanger 4 may be
If the temperature of the coolant CW in the water tank 1 is to be higher than that of the water tank 1, for example, a liquid temperature sensor S and a flow rate control device 6 are used to maintain the temperature of the coolant CW in the water tank 1 detected by the liquid temperature sensor S at a preset temperature. It is also easy to increase the flow rate of the cooling water 41 supplied to the heat exchanger 4 by reducing or stopping the flow rate by interlocking the flow rate control device 6. The effects brought about by the present invention are as follows.
（１）水槽中には常に一定温度の冷却液がたたえられて
おり、当該冷却液を用いて焼入れ冷却が行、われるので
被加熱材に対する冷却条件を一定に保持することが保障
される。（２）焼入れに使用済みの冷却液を水槽へ還流
するポンプは常時運転となつているので従来の如く頻繁
な入り切りによる電力エネルギーの消費や高い損耗度と
高い故障率が避けられ、極めて省エネルギー、省資源的
運用が可能となる。(1) A cooling liquid at a constant temperature is always kept in the water tank, and since the cooling liquid is used for quenching and cooling, it is ensured that the cooling conditions for the heated material are maintained constant. (2) Since the pump that returns the coolant used for quenching to the water tank is in continuous operation, it is possible to avoid the consumption of electrical energy, high wear and tear, and high failure rate due to frequent turning on and off as in the past, resulting in extremely energy saving and Resource-saving operation becomes possible.
（３）従来ポンプの使用台数が３台であつたところ本発
明を実施すれば２台で済むこととなり、焼入装置の簡易
化が可能となるのて設備費を軽減できる。(3) The number of pumps used in the past was three, but by implementing the present invention, only two are required, which makes it possible to simplify the quenching equipment and reduce equipment costs.
（４）冷却液の温度調整は、従来水槽内の冷却液量、当
該水槽へ還流される昇温した冷却液量、熱交換機能なら
びに各ポンプの湯水能その他の諸要素を考慮した複雑な
計算による回路設計のもとになされていたにも拘らず、
充分効果を挙げ得なかつたところ、本発明では昇温した
冷却液量、熱交換機能およびこれに関与する一台のポン
プの揚水能だけを考慮して計算すればよく回路設計が極
めて容易となり、その上均一温度の冷却液が容易に確保
可能となる。(4) Coolant temperature adjustment has conventionally involved complex calculations that take into account the amount of coolant in the water tank, the amount of heated coolant that is returned to the tank, the heat exchange function, the hot water capacity of each pump, and other factors. Although it was based on the circuit design by
However, in the present invention, the circuit design is extremely easy, since calculations only need to be made considering the amount of heated coolant, the heat exchange function, and the pumping capacity of one pump involved. Moreover, a cooling liquid of uniform temperature can be easily secured.
（５）温度センサーや流量制御装置を用いて熱交換器一
・供給される冷却水の温度以上の所望の温度の冷却液で
焼入れ冷却を行う場合、従来は水槽へ昇温液と奪熱済み
の冷却液の双方が流入するため冷却液温の均一化が極め
て困難であつたところ、本発明では熱交換器を介しての
流入のみとなるので冷却液の温度コントロールを容易か
つ正確に行うことが可能となつた。(5) When performing quenching cooling with a cooling liquid at a desired temperature higher than the temperature of the cooling water supplied to the heat exchanger using a temperature sensor or flow rate control device, conventionally, heat has been removed from the heating liquid in a water tank. It was extremely difficult to equalize the temperature of the coolant because both types of coolant flow in, but in the present invention, the temperature of the coolant can be easily and accurately controlled because it only flows through the heat exchanger. became possible.
第１図は熱交換器付き床上水槽を備えた焼入装置におけ
る従来の焼入れ用冷却液の循環回路図、第２図は本発明
にか）る焼入れ用冷却液の循環回路である。
１・・・・・・水槽、２・・・・・・焼入れ冷却に使用
された冷却液を受ける冷却液受け、３・・・・・・補助
水槽、４・・・・・・熱交換器、５・・・・・・溢水口
、６・・・・・・熱交換器へ供給する冷却水の流量制御
装置、Ａ，ＢおよびＥ・・・・・・管路、ＣＷ，ＣＷ２
，ＣＷ３・・・・・・冷却液、ｌ］・・・・・・焼入機
、Ｐ１およびＰ２・・・・・・ポンプ、Ｓ・・・・・・
液温センサー。FIG. 1 is a conventional quenching coolant circulation circuit diagram in a quenching apparatus equipped with an above-floor water tank with a heat exchanger, and FIG. 2 is a quenching coolant circulation circuit according to the present invention. 1...Water tank, 2...Cooling liquid receiver for receiving the coolant used for quenching cooling, 3...Auxiliary water tank, 4...Heat exchanger , 5... Overflow port, 6... Cooling water flow rate control device supplied to the heat exchanger, A, B and E... Pipes, CW, CW2
, CW3...cooling liquid, l]...quenching machine, P1 and P2...pump, S...
Liquid temperature sensor.
Claims (1)
れ、焼入れ冷却に使用された後に水槽へ還流となる焼入
装置において、冷却液を水槽の所定水位から常時溢流せ
しめてこれを熱交換器を介して水槽へ還流させると共に
、上記溢流冷却液と焼入れ冷却に使用した冷却液とを合
流せしめて、これを熱交換器を介して水槽へ還流させる
ようにしたことを特徴とする焼入れ用冷却液の循環方法
。 ２ 熱交換器付き床上水槽を備えた焼入装置において、
上記水槽の上部所定位置には溢水口を設け、水槽から汲
み上げられて焼入れ冷却に使用された冷却液を受ける冷
却液受けと管路で導通する補助水槽に上記溢水口を接続
可能とし、かつ補助水槽からは熱交換器を介して水槽へ
ポンプで汲み上げ可能に管路を構成すると共に、装置に
使用する冷却液の量を水槽の溢水口によつて定まる所定
水位を保つ量と焼入れ操作に必要な量との和を越える所
定量に設定することにより、補助水槽中の冷却液が常時
動作中のポンプによつて熱交換器を介して水槽へ還流さ
れていることを特徴とする焼入れ用冷却液の循環装置。 ３ 熱交換器が冷却水の供給停止または流量制御により
熱交換機能を制御可能であることを特徴とする特許請求
の範囲第２項の焼入れ用冷却液の循環装置。[Scope of Claims] 1. In a quenching device in which a cooling liquid for quenching is supplied from an above-the-floor water tank with a heat exchanger, used for quenching cooling, and then returned to the water tank, the cooling liquid constantly overflows from a predetermined water level in the water tank. At least this was returned to the water tank via a heat exchanger, and the overflowing cooling liquid and the cooling liquid used for quenching cooling were combined, and this was returned to the water tank via the heat exchanger. A method for circulating a cooling liquid for quenching. 2. In a quenching device equipped with an above-floor water tank equipped with a heat exchanger,
An overflow port is provided at a predetermined position in the upper part of the water tank, and the overflow port can be connected to an auxiliary water tank that is connected via a pipe to a coolant receiver that receives the coolant pumped from the water tank and used for quenching cooling. The pipe line is constructed so that it can be pumped from the water tank to the water tank via a heat exchanger, and the amount of coolant used in the equipment is determined by the water tank's overflow port to maintain a predetermined water level and the amount necessary for the quenching operation. cooling for quenching, characterized in that the cooling liquid in the auxiliary water tank is returned to the water tank via a heat exchanger by a constantly operating pump by setting a predetermined amount that exceeds the sum of the Liquid circulation device. 3. The cooling liquid circulation device for quenching according to claim 2, wherein the heat exchanger can control the heat exchange function by stopping the supply of cooling water or controlling the flow rate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP323181A JPS6058762B2 (en) | 1981-01-14 | 1981-01-14 | Method and device for circulating cooling liquid for quenching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP323181A JPS6058762B2 (en) | 1981-01-14 | 1981-01-14 | Method and device for circulating cooling liquid for quenching |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57116723A JPS57116723A (en) | 1982-07-20 |
| JPS6058762B2 true JPS6058762B2 (en) | 1985-12-21 |
Family
ID=11551670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP323181A Expired JPS6058762B2 (en) | 1981-01-14 | 1981-01-14 | Method and device for circulating cooling liquid for quenching |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6058762B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6309236B2 (en) * | 2013-10-01 | 2018-04-11 | 富士電子工業株式会社 | Induction hardening equipment |
| CN106995873B (en) * | 2017-04-10 | 2019-03-29 | 江苏苏美达德隆汽车部件股份有限公司 | Heat treatment water temperature control system and control method thereof |
-
1981
- 1981-01-14 JP JP323181A patent/JPS6058762B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57116723A (en) | 1982-07-20 |
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