200825184 九、發明說明： 【發明所屬之技術領域】 尤指一種適用200825184 IX. Description of invention: [Technical field to which the invention belongs]
本發明係關於一種退火方法及其系統 於非晶質鐵心之退火方法及其系統。 【先前技術】 非晶質鐵心變壓器為一種省能源、 &軔耗的绛0 # 品，於目前變壓器產品中廣泛被使用著。 4^產 今》曰曰資鐵心田立 材料特性，以及承受應力後造成鐵損的影響相當 u/、 消除鐵心製造過程中產生的應力，並改善磁特:，須^ 磁場強度下退火謂得最佳鐵損及激磁電流。且敎溫 值及時間的保持有其限制，需控制精確。 鐵心退火主要係歷經升溫、怪溫、及降溫階段，^ 加熱使鐵心升溫至-退火溫度，再以此溫度進行—段時厂 恆溫保持，最後再將其降溫。為使鐵心表面與内部溫度绅 持均勻，需做到良好的加熱均勻及溫度控制。 習知非晶質變壓器之鐵心製程中，對鐵心退火之方式 多依照以往之經驗，例如依據鐵心之重量與數量，在退火 爐使用的程式控制器上，針對不同批量之鐵心、條件預先韻 定好退火溫度與時間等參數，稱其為不㈣退火程式。 然而，以預定的程式退火時，每一次執行退火之鐵心 數里、重里可能通會有些微差異，此情況下即便同批量條 件之鐵心’其到達特定溫度的時間點也可能不同。因此， 20 200825184 需補償多少恆溫時間實難以估計，也造成了退火後鐵心特 性變化大。 也有習知之退火方式係以人工在一時間間隔下監視並 紀錄退火爐内非晶質鐵心之溫度，若鐵心溫度達到預期的 5 溫度及在一恆溫時間間隔後即進行退火爐之手動切電降溫 動作。以此方式進行鐵心退火的缺點是人力的浪費以及人 為判斷的誤差而使鐵心退火不確實。 因此，如何增進非晶質鐵心退火效果為現今非晶質變 I 壓器製造領域相當重要的議題。 10 【發明内容】 本發明之非晶質鐵心退火方法包括下列步驟： 步驟A :放置至少一鐵心於一退火爐内，且設定一恆 溫起始值、一定時時間。 15 步驟B :執行一退火爐升溫程序。 步驟C :量測至少一鐵心溫度，其係指至少一鐵心之溫 度值。 B 步驟D :比較恆溫起始值與鐵心溫度，當鐵心溫度到 達恆溫起始值，即輸出一恆溫訊號給控制系統。 20 步驟E :當接收到恆溫訊號時，開始計時，且經過一定 時時間後即輸出一降溫訊號。 步驟F :當接收降溫訊號時，執行退火爐降溫程序。 上述步驟C可包括有：步驟C1，裝設至少一鐵心溫度 感測器於鐵心上，且裝設至少一爐體溫度感測器於退火爐 200825184 之壁上、以及步驟C2，啟動至少一鐵心溫度感測器、與至 少一爐體溫度感測器以分別偵測獲得至少一鐵心溫度、與 至少一爐體溫度。此外，於步驟C中，可對一鐵心量取三處 位置之溫度，三處位置之分佈可沿鐵心之長度方向上等分。 5 其中，步驟A可更包括設定一升溫速率與一降溫速 率，步驟B可依據升溫速率執行退火爐升溫程序，且執行升 溫程序可為啟動退火爐内之加熱器。步驟F可依據降溫速率 執行退火爐降溫程序，且執行降溫程序可為啟動退火爐内 g 之熱交換器。 10 本發明之非晶質鐵心退火系統包括：一退火爐、至少 一鐵心溫度感測器、一溫度記錄器、一計時器、以及一退 火爐程式控制器。 其中，退火爐具有一熱交換器與一加熱器，退火爐用 以對至少一鐵心進行退火。鐵心溫度感測器用以量測至少 15 一鐵心溫度。溫度記錄器電性連接至至少一鐵心溫度感測 器，並預設有一恆溫起始值，溫度記錄器用以偵測獲得至 少一鐵心溫度感測器傳來之鐵心溫度、並比較至少一鐵心 B 溫度到達恆溫起始值時、輸出一恆溫訊號。 計時器電性連接至該溫度記錄器，並預設有一定時時 20 間，計時器用以接收溫度記錄器傳來之恆溫訊號，並開始 計時歷經定時時間、以輸出一降溫訊號。 退火爐程式控制器電性連接至熱交換器、加熱器、溫 度記錄器、及計時器，退火爐程式控制器用以控制加熱器 與熱交換器之啟動與關閉、及接收降溫訊號，當退火爐程 200825184 f控制器接收到來自計時器之降溫訊號時，即啟動熱交換 器以進行一降溫程序。 當任-鐵心溫度達到但溫起始值，溫度記錄器輸出值 溫訊號；當計時器計時結束時，輸出降溫訊號；當退⑼ 程式控制器接收到降溫訊號時，啟動熱交換器以進行^ 溫程序。 牛 退火系統可更包含至少„爐體溫度感測器，其係電性 連接至溫度記錄器並設置於 10 15 20 爐以獲得至少-爐體溫度。爐之壁上，用則貞測退火 2爐更可包括—風扇’用以加速溫度均勻。上述加 能加熱器；熱交換器可為水冷式熱交換器、氣 = 器或其他等效熱交換裝置。溫度感測器可為電 阻式&度感測器或熱電耦式溫度感測器。 ^發明藉由即時偵_心溫度’並配合各控制器達到 程序’能夠在準確的溫度下開始進行鐵心恆 對於同一類型批量之待退火鐵心只以 因此本^用於母—次退火或以人卫操作可能的偏差。 :此=能夠準確掌握退火溫度，以達到最佳的退火效 果也侍到一最佳之退火後鐵心品質。 【實施方式】 火其1會示本發明一較佳實施例之非晶質鐵心退 火糸洗方塊圖。非晶質鐵心退火系統包括有—退火爐細、 8 200825184 三鐵心溫度感測器21〇b、一爐體溫度感測器21〇a、一溫度 記錄器212、一計時器214、以及一退火爐程式控制器216。 退火爐200内配置有一加熱器204、一熱交換器202、以 及一風扇206，加熱器2〇4與熱交換器202用以分別對鐵心 5 220進行退火操作之升溫及降溫程序，風扇206用以加速退 火爐200内部之熱平衡。 鐵心溫度感測器210b係裝置於鐵心220表面上，用以量 測至少一鐵心溫度。本實施例中係以退火數量為一之鐵心 | 為例，鐵心配置三鐵心溫度感測器。 10 另再參考圖4，其繪示實施例中溫度感測器配置之示意 圖。圖式已將退火爐設備内部簡化，只顯示鐵心220於退火 爐200内’主要表現出爐體溫度感測器21〇&係設置於退火爐 200之壁200a上、以及複數個鐵心溫度感測器210b等分設置 於鐵心220之長度方向p上，藉此準確掌握鐵心溫度。上述 15 各溫度感測器皆電連接至溫度記錄器。 溫度記錄器212係電性連接至鐵心溫度感測器210b、及 _ 爐體溫度感測器21 〇a，並預設有一恒溫起始值，溫度記錄 器212用以接收鐵心溫度感測器21〇b所偵測得到之鐵心溫 度之資訊、以及爐體溫度感測器21〇a所偵測得到之爐體溫 20 度之資訊，並將鐵心溫度與恆溫起始值作一比較，並負責 輸出一恆溫訊號。 計時器214係與溫度記錄器212電連接，其預設有，定 時時間’計時器214用以接收上述來自溫度記錄器212輸出 200825184 之恆溫訊號，並開始計時歷經一定時時間，負責輸出一降 溫訊號。 退火爐程式控制器216同時與加熱器204、熱交換器202 及計時器214電連接，用以控制加熱器204與熱交換器202之 5 啟動與關閉、及接收來自計時器214之降溫訊號。 同時參考圖1、圖3及圖4，圖1繪示本發明一較佳實施 例之非晶質鐵心退火流程圖。以下以一操作實施例說明本 發明之鐵心退火方法。首先，步驟SA中，將鐵心220放置於 _ 退火爐200内，並於溫度記錄器212設定一恆溫起始值、於 10 計時器214上設定一定時時間、於退火爐程式控制器216設 定升溫速率及降溫速率。 此處需特別注意的是，部分退火爐程式控制器之設定 中，有一恆溫間隔之設定選項，亦即使退火爐可自動計算 恆溫時間，時間計算終了時跳至降溫階段。而通常此恆溫 15 間隔係大於上述之定時時間，因此仍可發揮利用計時器計 時定時時間進而觸發降溫動作之功效。 恆溫起始值代表認定可以開始執行恆溫程序之標準 i 值。定時時間代表退火步驟中鐵心欲持續恆溫之時間量。 升溫速率為鐵心退火之加熱升溫階段中，加熱器204對退火 20 爐200進行加熱的速率。恆溫間隔代表退火爐恆溫時間設定 值。降溫速率為鐵心退火之冷卻降溫階段中，熱交換器202 對退火爐200進行冷卻的速率。 當鐵心220已依步驟SA置入退火爐200，即關閉退火爐 200使其為絕熱環境。接著在步驟SB中，依據退火爐程式控 200825184 制器216已預先設定之各項參數，控制啟動加熱器204，開 始進行退火過程中之退火爐200之升溫階段。 再同時參考圖2，其繪示圖1之量測步驟之流程圖。於 步驟SC中，開始量測爐體溫度及鐵心溫度。此量測步驟包 5 括有步驟SCI，分別設置鐵心溫度感測器210b於鐵心220 上，爐體溫度感測器210a於退火爐200之壁200a上、以及步 驟SC2,啟動各溫度感測器使其為運作狀態，執行溫度偵測。 本實施例中放置各溫度感測器之時機係於加熱開始不 &久後，此乃因加熱程序需進行一段時間，故並不影響欲量 10 取即將達到退火溫度前之鐵心溫度之目的。但可實施之態 樣當然不限定於此，較佳地，配置溫度感測器之動作實施 於鐵心置入退火爐時。 步驟SD中，溫度記錄器212接收來自各溫度感測器所 量得之溫度資訊，包括鐵心溫度與爐體溫度，同時依據步 15 _SA中所設定之恆溫起始值對三組鐵心溫度進行比較，若 有任一組鐵心溫度經比較已達恆溫起始值，溫度記錄器212 即輸出一恆溫訊號至計時器214。 B 較佳地，溫度記錄器212係可提供一溫度顯示功能，讓 操作人員能同時掌握鐵心溫度與爐體溫度。此處同時針對 20 爐體溫度進行監測之優點在於，可同時比較爐體溫度及鐵 心溫度，掌握退火爐2〇〇内溫度循環之異常狀況。 步驟SE中，當計時器214接收到來自溫度記錄器212之 怪溫訊號，即開始依據步驟SA設定之定時時間計時，待計 時終了即輸出一降溫訊號至退火爐程式控制器216。 11 200825184 需特別注意的是’加熱器2〇4之運轉係受退火爐程式控 制益216控制’加敎升、、设劣口皮 …、升酿耘序及恆溫間隔何時停止則依據使 用==來預設其時間’此與_般退火爐控触式之使用 擔目二'^於退火爐_設㈣素，鐵心溫度係通常保持低於 爐體〉 皿度 “需漸漸與爐體内溫度達成穩定平衡。因此鐵心 220達到標準的恆溫溫度是在加熱升溫程序終止以後，亦即 加熱器204之關閉盥鐵乂、、、设疮么j _ μ /、、载，皿度無相互影響之關連，而是依據 爐肢溫度及程式控制器預先設定所控制。 步驟SF中，當退火爐程式控制器216接收來自計時哭 所4之降溫訊號’即控制啟動熱交換器202，依據步驟SA中 斤玫定之降溫速率進行冷卻降溫。至此，後續之程序盘一 又非晶質鐵心退火程序大致相同，於此不再贅述。 15 20 本發明之鐵心退火方法及其系統對於習 確鐵心退火溫度及時間之情形提供了較佳的解決:利 =溫度之即時偵測可準確掌握到鐵心之溫度，以及利 用預S又恒溫起始值舆定時時間來精確控制鐵心恆 ^而對於同-批量條件之鐵心可在精確的恆^㈣件 下’採用-致且固定的鐵心恆溫時間量，不須如同習知以 ^略估計方式、經驗法則何靠地則,m温補償時間之多 上述實施例僅係為了方便說明而舉 卞ΡΊ叩匕，本發明所 主張之權利範圍自應以申請專利範圍 於上述實施例。《為準’而非僅限 12 200825184 【圖式簡單說明】 圖1係本發明一較佳實施例之非晶質鐵心退火流程圖。 圖2係圖1之量測步驟之流程圖。 圖3係本發明一較佳實施例之非晶質鐵心退火系統方塊圖。 5 圖4係本發明一較佳實施例之溫度感測器配置之示意圖。 【主要元件符號說明】 200退火爐 202加熱器 2 0 6風扇 210b爐體溫度感測器 214計時器 220鐵心 200a 壁 204熱交換器 210a鐵心溫度感測器 212溫度記錄器 216退火爐程式控制器 P長度方向The present invention relates to an annealing method and system thereof for annealing an amorphous core and a system therefor. [Prior Art] Amorphous core transformer is a kind of energy-saving, &轫0# product, which is widely used in current transformer products. 4^production today" 曰曰 铁 铁 铁 立 立 立 立 立 立 立 立 立 立 立 立 立 立 立 立 立 立 立 立 立 立 立 立 立 立 立 立 立 立 立 立 立 立 立 立 立 立 立 立 立 立 立 立 立 立 立 立Good iron loss and excitation current. Moreover, the temperature and time are kept constant, and the control needs to be precise. Iron core annealing mainly undergoes temperature rise, strange temperature, and cooling stage. ^ Heating causes the core to heat up to the annealing temperature, and then the temperature is maintained. The temperature is maintained at the stage and finally cooled. In order to keep the surface of the core and the internal temperature uniform, good heating uniformity and temperature control are required. In the iron core process of the conventional amorphous transformer, the method of annealing the iron core is based on the previous experience. For example, according to the weight and quantity of the iron core, the core controller and the conditions of the different batches are pre-programmed on the program controller used in the annealing furnace. Annealing temperature and time parameters, etc., is called the (four) annealing program. However, when annealing in a predetermined program, there may be slight differences in the number of cores and weights in each of the annealing cores. In this case, even if the core of the same batch condition reaches a certain temperature, the time may be different. Therefore, 20 200825184 It is difficult to estimate how much constant temperature time to compensate, and it also causes a large change in core characteristics after annealing. There is also a conventional annealing method for manually monitoring and recording the temperature of the amorphous iron core in the annealing furnace at a time interval. If the core temperature reaches the expected temperature of 5 and the manual electric cooling of the annealing furnace is performed after a constant temperature interval action. The disadvantage of core annealing in this way is that manpower is wasted and the error of human judgment makes the core annealed. Therefore, how to improve the annealing effect of amorphous core is a very important issue in the field of amorphous transformer manufacturing. [Area] The amorphous core annealing method of the present invention comprises the following steps: Step A: placing at least one core in an annealing furnace, and setting a constant temperature starting value for a certain period of time. 15 Step B: Perform an annealing furnace heating procedure. Step C: Measure at least one core temperature, which is the temperature value of at least one core. B Step D: Compare the initial value of the constant temperature with the temperature of the core. When the temperature of the core reaches the initial value of the constant temperature, a constant temperature signal is output to the control system. 20 Step E: When the thermostat signal is received, the timing starts, and after a certain period of time, a cooling signal is output. Step F: When receiving the cooling signal, perform an annealing furnace cooling process. The above step C may include: step C1, installing at least one core temperature sensor on the core, and installing at least one furnace temperature sensor on the wall of the annealing furnace 200825184, and step C2, starting at least one core The temperature sensor and the at least one furnace temperature sensor respectively detect at least one core temperature and at least one furnace temperature. In addition, in step C, the temperature of three locations can be measured for one core, and the distribution of the three locations can be equally divided along the length of the core. 5 wherein step A may further comprise setting a heating rate and a cooling rate, step B may perform an annealing furnace heating process according to the heating rate, and performing a temperature increasing program may be to start the heater in the annealing furnace. Step F may perform an annealing furnace cooling program according to the cooling rate, and the cooling program may be a heat exchanger that starts g in the annealing furnace. The amorphous core annealing system of the present invention comprises: an annealing furnace, at least one core temperature sensor, a temperature recorder, a timer, and an annealing furnace program controller. Wherein, the annealing furnace has a heat exchanger and a heater for annealing at least one core. The core temperature sensor is used to measure at least 15 core temperatures. The temperature recorder is electrically connected to the at least one core temperature sensor and presets a constant temperature starting value, and the temperature recorder is configured to detect the core temperature obtained by the at least one core temperature sensor and compare the at least one core B When the temperature reaches the constant temperature start value, a constant temperature signal is output. The timer is electrically connected to the temperature recorder, and presets a time interval of 20, the timer is used to receive the constant temperature signal from the temperature recorder, and starts to count the time to output a cooling signal. The annealing furnace program controller is electrically connected to the heat exchanger, the heater, the temperature recorder, and the timer, and the annealing furnace program controller is used to control the startup and shutdown of the heater and the heat exchanger, and receive the cooling signal when the annealing furnace is Cheng 200825184 f When the controller receives the cooling signal from the timer, it starts the heat exchanger to perform a cooling program. When the temperature of the core reaches the temperature but the temperature starts, the temperature recorder outputs a temperature signal; when the timer expires, the cooling signal is output; when the controller (9) receives the cooling signal, the heat exchanger is started to perform ^ Temperature program. The cattle annealing system may further comprise at least a furnace temperature sensor electrically connected to the temperature recorder and disposed in the 10 15 20 furnace to obtain at least the furnace temperature. On the wall of the furnace, the annealing furnace is used. It may further include a fan 'to accelerate the temperature uniformity. The above-mentioned energizing heater; the heat exchanger may be a water-cooled heat exchanger, a gas heater or other equivalent heat exchange device. The temperature sensor may be a resistive & Degree sensor or thermocouple temperature sensor. ^Invented by the instant detection _ heart temperature 'and the controller to achieve the program' can start the core at the exact temperature for the same type of batch of core to be annealed only Therefore, this method can be used for the mother-time annealing or the possible deviation of the operation of the person. This: It is possible to accurately grasp the annealing temperature to achieve the best annealing effect and also to provide an optimum quality of the core after annealing. Fire 1 will show an amorphous core annealing and cleaning block diagram of a preferred embodiment of the present invention. The amorphous core annealing system includes an annealing furnace fine, 8 200825184 three core temperature sensor 21〇b, one Furnace body a temperature sensor 212A, a temperature recorder 212, a timer 214, and an annealing furnace program controller 216. The annealing furnace 200 is provided with a heater 204, a heat exchanger 202, and a fan 206 for heating The heater 2 is connected to the heat exchanger 202 for heating and cooling the core 5220, and the fan 206 is used to accelerate the heat balance inside the annealing furnace 200. The core temperature sensor 210b is mounted on the surface of the core 220. For measuring the temperature of at least one core. In this embodiment, the core is an iron core with an annealing quantity of one. For example, the core is provided with a three-core temperature sensor. 10 Referring again to FIG. 4, the temperature sense in the embodiment is shown. Schematic diagram of the configuration of the detector. The drawing has simplified the interior of the annealing furnace apparatus, and only shows that the core 220 is in the annealing furnace 200. 'The main performance of the furnace temperature sensor 21〇& is disposed on the wall 200a of the annealing furnace 200, and A plurality of core temperature sensors 210b are equally divided on the length direction p of the core 220 to accurately grasp the core temperature. The above 15 temperature sensors are electrically connected to the temperature recorder. The temperature recorder 212 is electrically Connected to the core temperature sensor 210b, and the furnace temperature sensor 21 〇a, and preset a constant temperature starting value, the temperature recorder 212 is used to receive the core temperature sensor 21〇b detected The information of the core temperature and the information of the temperature of the furnace body detected by the furnace temperature sensor 21〇a are compared, and the temperature of the core is compared with the initial value of the constant temperature, and a constant temperature signal is output. The 214 is electrically connected to the temperature recorder 212. The timer 214 is configured to receive the constant temperature signal from the temperature recorder 212 and output the 200825184, and start counting for a certain period of time, and is responsible for outputting a temperature drop signal. The annealing furnace program controller 216 is electrically coupled to the heater 204, the heat exchanger 202, and the timer 214 for controlling the activation and deactivation of the heater 204 and the heat exchanger 202, and receiving the temperature reduction signal from the timer 214. Referring to FIG. 1, FIG. 3 and FIG. 4, FIG. 1 is a flow chart of annealed core annealing according to a preferred embodiment of the present invention. The core annealing method of the present invention will be described below by way of an operational example. First, in step SA, the core 220 is placed in the annealing furnace 200, and a constant temperature starting value is set in the temperature recorder 212, and a predetermined time is set on the 10 timer 214, and the temperature is set in the annealing furnace program controller 216. Rate and rate of cooling. It is important to note here that in the setting of the partial annealing furnace program controller, there is a setting option of the constant temperature interval, and even if the annealing furnace can automatically calculate the constant temperature time, the time calculation ends and jumps to the cooling stage. Usually, the constant temperature 15 interval is greater than the above-mentioned timing time, so that the timer timing can be used to trigger the cooling action. The constant temperature start value represents the standard i value at which the constant temperature program can be started. The timing time represents the amount of time the core is intended to remain constant during the annealing step. The rate of temperature rise is the rate at which the heater 204 heats the annealing furnace 20 during the heating and heating phase of the core annealing. The constant temperature interval represents the set time of the annealing furnace constant temperature. The rate of cooling is the rate at which the heat exchanger 202 cools the annealing furnace 200 during the cooling and cooling phase of the core annealing. When the core 220 has been placed in the annealing furnace 200 in accordance with step SA, the annealing furnace 200 is turned off to make it an adiabatic environment. Next, in step SB, the starter heater 204 is controlled in accordance with the pre-set parameters of the annealing furnace program control unit 2008216, and the temperature rise phase of the annealing furnace 200 during the annealing process is started. Referring to FIG. 2 at the same time, a flow chart of the measuring step of FIG. 1 is illustrated. In step SC, the temperature of the furnace body and the temperature of the core are measured. The measuring step package 5 includes a step SCI, respectively setting the core temperature sensor 210b on the core 220, the furnace body temperature sensor 210a on the wall 200a of the annealing furnace 200, and step SC2, starting each temperature sensor Make it operational and perform temperature detection. In this embodiment, the timing of placing the temperature sensors is not after the heating starts. This is because the heating process needs to be carried out for a period of time, so that the purpose of taking the temperature of the core before the annealing temperature is not affected. . However, the embodiment that can be implemented is of course not limited thereto. Preferably, the operation of arranging the temperature sensor is performed when the core is placed in the annealing furnace. In step SD, the temperature recorder 212 receives the temperature information measured by each temperature sensor, including the core temperature and the furnace temperature, and compares the three sets of core temperatures according to the constant temperature starting value set in step 15_SA. If any of the core temperatures have been compared to the constant temperature start value, the temperature recorder 212 outputs a constant temperature signal to the timer 214. Preferably, the temperature recorder 212 provides a temperature display function that allows the operator to simultaneously control the core temperature and the furnace temperature. The advantage of monitoring the temperature of the 20 furnaces at the same time is that the temperature of the furnace body and the temperature of the core can be compared at the same time, and the abnormal temperature of the temperature cycle in the annealing furnace is grasped. In the step SE, when the timer 214 receives the strange temperature signal from the temperature recorder 212, it starts counting the timing time set according to the step SA, and outputs a cooling signal to the annealing furnace program controller 216 at the end of the waiting time. 11 200825184 It is necessary to pay special attention to the fact that 'the operation of the heater 2〇4 is controlled by the annealing furnace program control 216', plus the swell, the bad mouth skin..., the grading and the constant temperature interval are stopped according to the use == To preset the time 'this and the use of _ like annealing furnace control touch type two '^ in the annealing furnace _ set (four) prime, the core temperature system is usually kept below the furnace body > the degree of "need to gradually and the temperature inside the furnace A stable balance is reached. Therefore, the constant temperature of the core 220 reaches the standard is after the heating and heating process is terminated, that is, the heater 204 is closed, the sputum is y, and the y is not affected. Correspondingly, it is controlled according to the temperature of the furnace limb and the preset of the program controller. In step SF, when the annealing furnace program controller 216 receives the cooling signal from the timing crying station 4, the control starts the heat exchanger 202, according to step SA. The cooling rate of the cooling temperature of the jinmei is cooled and cooled. At this point, the subsequent procedure of the amorphous core annealing process is substantially the same, and will not be repeated here. 15 20 The core annealing method and system thereof of the present invention are for the iron core of the present invention. The temperature and time of the fire provide a better solution: the immediate detection of the temperature = temperature can accurately grasp the temperature of the core, and the pre-S and the constant temperature start value 舆 timing time to accurately control the core constant ^ and the same - In the batch condition, the iron core can be used in a precise constant (four) piece to adopt a constant temperature of the fixed and fixed iron core. It is not necessary to use a slight estimation method as in the conventional method, and the empirical rule depends on the ground. The embodiments are only for convenience of description, and the scope of the claims of the present invention is intended to be within the scope of the above-mentioned embodiments. The "prevails" rather than only 12 200825184 [Simple description of the drawings] Figure 1 Fig. 2 is a flow chart of the measurement step of Fig. 1. Fig. 3 is a block diagram of an amorphous core annealing system according to a preferred embodiment of the present invention. 5 is a schematic diagram of a temperature sensor configuration according to a preferred embodiment of the present invention. [Main component symbol description] 200 annealing furnace 202 heater 2 0 6 fan 210b furnace body temperature sensor 214 timer 220 core 200a wall 204 hot 210a exchanger core temperature sensor 212 Temperature Recorder 216 programmable controller lehr longitudinal direction P
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