TW506865B - Cycle sensing method and its device - Google Patents

Abstract

This invention provides a cycle sensing method and its device, which firstly performs heating condition learning of specific metal ingot using fixed-type heating operation to obtain a heating cycle for the application to heating process under rotary heating; therefore, it is the most effective way to apply cycle sensing heating on a plural number of metal ingots by proceeding sequential setting of target values (temperature value and power value).

Description

506865 V. Description of the invention (l) The present invention relates to a cycle induction method and a device thereof, and in particular to a cycle induction method and a heating cycle of a rotary heating obtained by studying heating conditions by a fixed heating operation and Its device. [Known Technology] In US Patent No. 4, 569, 2 1 8 (Apparatus and process for producing shaped metal parts), a device capable of continuously forming metal is disclosed. The device uses a tray mechanism and several cycles. The induction coil heats several metal ingots at the same time. After heating, the induction coil's tray is rotated forward, and all metal ingots are moved forward to the next induction coil position, and the induction coil is lowered and heated. In this way, each metal ingot 'is sequentially heated through different coils, until the last coil, the metal ingot reaches a semi-melted state, and then the metal ingot is sent to the forging and pressing into a finished product by using a clamp. Above. There is also a winding of a plurality of induction coils: Dagger :: The wave generator heats up, and the coil of the coil decreases backward. The power of heating the metal ingots was sequentially resistive, and the parts that were in contact with the metal ingots were held under electricity to ensure that the metal was held to the press. The temperature of the above metal ingots was heated at 70 to 90% by volume. The mechanical fixture holds it. However, during the completion and transfer process, the solid ratio is maintained. The shape of the metal ingot can be maintained, and the machine is controlled by a frequency generator and circuit. The heating of the metal ingot is only performed by

Description of the invention (2) ^ The changed heating parameters are only right — the best heating conditions for metal ingots: lack = heating power and time value, so it is not easy to grasp, and lack of controllable process parameters, mainly because of the The technology requires a quick method to obtain the best heating conditions, so that the trial and error method (try and and size changes): plus = = is when the thermal conditions of the material of the metal ingot must be taken again "Wang" to cooperate with the press to make changes, the US Patent No. 4,712 is a continuation of the US Patent No. 4,569,2, the metal ingot heating equipment of the BlUet heating Pr 0cessl plate UV, the '218 case uses the case rate Focus on metal recording = & / In order to prevent cracking due to surface dissolution caused by the Zhou wave induction function when heating, the bulging of the branch tower =: 1: 状 == metal support Above the surface, the metal surface is reduced and the surface is still hesitated. [Dingnen, the other-however, the 413 case has the following restrictions: 1) The ring material can be copper. Material 2. ) S% -like material has long and narrow cracks to prevent eddy current loss in the ring shape. 3) The ring material has sufficient mass to absorb the latent heat of the molten metal ingot. XI-like, the molten droplets on the surface will not drip under the device. 4) This technology is designed for problems that arise when heating conditions cannot be optimized and is not necessary. Method f0r heating metallic body to semisolid state proposed in U.S. Patent 5,758,707 is a kind of additive

0178-6294TWF; MRL-P-890056; Alex.pt (i 506865 V. Description of the invention (3) Hot metal spinning method, the 7 Q 7 Chong 0 metal bond passes through, one: Ϊ has the following characteristics: b ) Metal bond heating effect is at least; ^ = hot. The number of f ′: t is the segment of the heat source. Each heating stage has lower energy. First: The amount of ^ is the highest, and the grains are transformed into spherical grains in the next stage. This amount should be able to make the dendron around the metal ingot d) use the press to form a semi-solid energy monitor and feedback control the heating conditions: ,, ^ ㈣ into the force I changes, however, the '707 case has the following restrictions. To Inputting energy as a process parameter is not easy to control. 2) Confirmation of different semi-solid solid phase ratios The pressure difference does not change much, and different forming pressures are generated at point two, but it is easy. The forming speed is relatively fast, so monitoring is not allowed. 3) There is no easy way to find better heating conditions. Fig. 1A is a circuit diagram showing one of the cycle heating devices. The circuit diagram c in the basin includes a secondary transformer C1, an output AC power source C3, and an induction coil C4. I — Figure 1B is a graph showing the coordinates of a metal ingot formed by heating five coils in sequence S3, S4, S5 and other coils according to the Sichuan diagram with respect to time τ, which is equally divided into 5 grades. 'Min,-equal points are composed of tl and t2, ti is the heating time, and t2 is the time for the metal ingot to be transferred from the -coil to the next induction coil. This one-wave induction heating has been widely used in metal forming processes

0178-6294TWF; MRL-P-890056; A1 ex.p t d

506865 V. Description of invention ~-~-For example, · high temperature forging and recent semi-solid forming. It has the advantages of fast heating speed and high thermal efficiency. However, precise temperature control is not easy. In order to obtain the metal forming process with local quality and high yield, it is necessary to have a precisely controlled cycle heating technology, which is especially important in the metal semi-solid forming. ^ Semi-solid forming technology is a technology that uses metal to be formed by forging in a part of liquid state and part of solid state. This technology can obtain forging-quality castings with almost no shrinkage holes, and has the advantage of forming complex-shaped castings.

One of the most commonly used methods of this technology is Thixocasting: it is first severely cracked during the solidification of the molten metal, which can change the solidified material's grains from a dendritic structure into a ball-like structure. Then, using this material with spheroidal grains, i is heated from the chamber and σ from j to the solid-liquid phase coexistence state, and then forged with a press: the key to thixotropic casting proposed by the current industry There are two technologies. A) It is necessary to accurately control the heating of the metal ingot to reach the addition. For example: when semi-solid forming A356 aluminum alloy, + phase 4 body dish X octave rate is between 40 ~ 46%, then A35fi button 俨 ν π仏 Between the liquid volume and the knife. ^ MU356 aluminum alloy must be controlled at 567 ~ 575 t, such as: b-) Bonding minutes, but * casting cycle is only about plus :: work; ": speed, at least 6 Shao key must be heated at the same time in order to "In order to meet the above-mentioned needs in production, the practice of adding 敎 Γ '…, Wanshi is to adopt

5. Description of the invention (5) Stage heating. The first stage heating input work is small. As for the equipment, there are two ways, one is t, and then gradually change the heating coil to heat several metal ingots at the same time, each of two independent fixed two, power, metal ingots in the same coil to complete the force :: circle: = Different points 疋, automation is more difficult, because the first is every two. This method mainly lacks the timing of heating and the end of heating: the coil 'except for the start-up and the operating cycle of the machine, the control of this action program changes = the position of the metal ingots after the heating of the metal with the metal is different. miscellaneous. The second motion path is complicated. θ ϋ Robotic arm in automation and the other method is the use of a rotating tray with the advantage of heating the metal ingot position „Several metal ingots: during the search process, the robotic arm grabs the heated metal key to -fixed, so the chemical It can shorten the integration of single robot automation with the path of simplifying the forming machine of the robotic arm, but, at present, although it is solved; in parallel (refer to Figure 1), the number of windings is 2 / ', which means that all the lines are out of power, so The variable control-to-master-coil output time during heating. When the type or size of the metal ingot alloy is changed, only the set of output voltage and the heating conditions that need to be adjusted for optimization, but θ, or the heating period, often The method of learning the heating conditions quickly. And ^ this method lacks a fast application and lacks flexibility. The adjustable process parameters are small, which also makes the cycle induction method of the present invention support the rod support, and each coil ^ = 5, for the complex metal spin J control circuit. At the same time, the frequency and voltage of the output of each cycle of the coil generator, and each line of the second generation using the same diameter, winding The method is the same as the number of laps 5. Description of the invention (6) 特. Using this special λ to increase the time 埶 order 叹 sigh leaves can make the same heating condition (several power lines and other output after distribution, win the same day, heating curvature speed The distribution methods such as the learnable heat curve < can be obtained-a fast t bright cycle induction method has the following = a) the present invention maintains the signal ^ ta! ΓΛ1m ^ " b) uses the Easy (Refer to Figure 3). To 2L :; and heating curve and other distribution methods, try to find it easily, force: the number of heating furnace body can be at least 2 (inclusive) with the quotation cost and casting cycle to Elasticity (please refer to Fig. 4A). Also, the above-mentioned object, features and advantages of the present invention can be more clearly understood, and the following: Jiabei target example with the accompanying drawings The diagram is a detailed explanation. The diagram is a simple diagram. The u diagram is a circuit diagram (c) showing a conventional cycle heating device. The 1 B diagram is a circuit diagram (c) according to FIG. 1A. Coordinate curve diagram; (c) plus 2A is the only column of the cycle induction device (τ) of the present invention Because the designated coil (S1) and the designated metal ingot (M) 'I ... the metal spin (M) is in a state before being heated; μ θ 疋 gold FIG. 2B shows the metal ingot (M) in FIG. 2A Under heating

506865 V. Description of the invention (Ό state; Figure 3 shows the top view of the process layout of the cycle induction device (τ) and other related equipment; Figure 4A shows the layout of the cycle induction device (τ) according to Figure 2A Top view of a one-wave induction heating furnace (2) including two sets of coils (S1, S2); FIG. 4B shows a one-wave induction heating furnace (2) according to the one of the frequency induction device (τ) in FIG. 2A Top view when 5 sets of coils (si, S2, S3, S4, S5) are included; Figure 5 shows the solid phase ratio (Fraction s) of the specified metal ingot (M) measured by a thermal difference analyzer. 〇nd) and temperature (Temperature) curve; Figure 6 shows the specified metal ingot (M) heating to a semi-solid frequency furnace output power (Power) and aluminum ingot temperature (Temperature) versus time (Time ) Graph 'The output power of the cycle furnace is evenly distributed to 5 sets of coils (S1 ~ S5); and FIG. 7 is an electrical correlation diagram showing the semi-solid molding automatic process equipment of the cycle induction device (τ) of the present invention. Description 1 0 ~ base; 10 ~ guide base fixed base; 11 ~ guide ; 11'~ turntable supporting the guide post base; 12~ turntable supporting base;

0178-6294TWF; MRL-P-890056; Alex.ptd Page 10 506865 V. Description of the invention (8) 13 ~ metal ingot support base; 1 3 0 ~ proximity switch; 1 4 ~ pallet; 1 5,1 6 ~ servo Motor; 17 ~ Screw; 18 ~ Belt; 19 ~ Bearing; 2 ~ Frequency induction heating furnace; 2 Frequency generator; 2 2 ~ Control circuit; 2 3 ~ Microcomputer processor; 24 ~ Temperature sensor; 26 ~ Electric brush for cleaning the metal ingot support; 3 ~ robot arm; 4 ~ feeding table; 5 ~ semi-solid forming machine; 50 ~ injection port; 6 ~ integrated system console; A-A ~ axis; α ~ Primary transformer; C2 ~ output current transformer; C3 ~ AC power supply; C4 ~ induction coil; Μ ~ designated metal ingot;

0178-6294TWF; MRL-P-890056; Alex.ptd p.11 506865, description of invention (9) SI, S2, S3, S4, S5 ~ coil; X ~ position embodiment is the designated metal ingot in this embodiment M is made of A ^ CA ^ w ^ Si-0.35wt% Mg) spherical grain aluminum alloy. The geometric shape of the designated metal ingot M is a cylindrical aluminum ingot with a diameter of 3 inches and a length of 120 mm. The designated metal ingot M has a first initial temperature (in this implementation, it is room temperature), and the cycle induction device T of the present invention is used for heating to set a target temperature. The heating process for setting the target temperature includes ^ Heating parameters: a set temperature value and a set power value. · Refer to Figures 2A and 2B. Fig. 2A is a side view of the cycle induction device τ of the present invention, wherein the designated metal ingot M is in a state before being heated, and Fig. 2B is a side of Fig. 2A. In a heated state. In Figs. 2A and 2B, only the specified coil S1 in the plurality of coils (S1, S2, S3, S4, S5) and the specified metal ingot 1 ^ in the plurality of metal ingots are listed. As shown in FIG. 2A, the cycle induction device τ includes a base 10, a guide holder 10, a guide post 11, a turntable holder 12, a metal ingot support 13, a proximity switch 130, A tray 14, a servo motor 15 (16), a screw 17, a belt 18, a bearing 19 and a one-cycle induction heating furnace 2, wherein the proximity switch 13 is adjacent to the metal ingot support 13. The cycle induction heating furnace 2 includes a plurality of coils (S1, S2, S3).

0178-6294TW; MRL-P-890056; Alex.ptd 506865

(S4, S5) (only the coil S1 is shown in FIG. 2A), a complex frequency generator, a complex control circuit 22, a complex microcomputer processor 23, and a temperature sensor 24. Among them, each coil (S1, S2 , S3, S4, S5) are respectively connected with at least one cycle generator 21, at least one control circuit 22 and at least one micro-processor 23, and each coil (S, S2, S3, I, Tray), each cycle generator And each control circuit 22 is electrically connected to each microcomputer processor 并且, and each microcomputer processor 23 controls the cycle generator 21 and the control circuits 22 to heat a plurality of metal ingots. Each microcomputer processor 23 of each coil (sj, S2, Sj, S4, S5) is electrically connected to a microcomputer processor in an ie system console 6 (as shown in FIG. 3), and then integrated by the The system console 6 controls the heating period of the rotary heating and its mobilization action.

The guide post 11 is disposed on the base 10, the screw 17, and the skin, and the screw servo motor 16 is directed above the guide 14 via the guide post 11, and is disposed on the tray 1 4 It reaches 15 to drive the leather when the tray 14 heating coil S2 position servo motor 16 supports the guide seat, and the belt 18 and the rod 17 are connected to the screw 17 to rise. The trays 14 and 14 and the servo belt 18 are moved when they are rotated. Between the racks, a fixed seat 10 ', the cycle induction heating furnace 2 is the tray 14, the servo motor 15 (16), and the bearing 1 9 is provided on the turntable support seat i 2 is connected to the servo motor 16 By driving the rotation, the turntable support base 12 is arranged along the metal key support base 13 on the tray to support a plurality of metal screws M. Between the belt 18 and the motor 15, the tray 14 is rotated by driving the servo horse. The metal key on the tray 14 goes down. The bearing 19 is provided on the tray 14 and the tray 14 can be mounted on the belt 18.

506865 V. Description of the invention (π) Drive along the axis A-A to rotate, so that the multiple metal ingots M on the metal money support base 13 can be sequentially transferred to different multiple coils (SI, S2 , S3, S4, S5) for heating. See Figure 3. FIG. 3 is a process layout diagram of the peripheral induction heating furnace 2 of the peripheral induction device τ and a robot arm 3, a feeding table 4, a semi-solid forming machine 5, and an integrated system console 6, and other related equipment. The integrated system console 6 is electrically connected to the cycle induction heating furnace 2, the robot arm 3, the feeding table 4 and the semi-solid forming machine 5. The cycle induction heating furnace 2 includes five coils (si, S2, S3, S4, and S5). The robot arm 3 and the feeding table 4 are adjacent to one side of the peripheral induction heating furnace. The feeding table 4 is used to carry a plurality of metal ingots, and

The plurality of metal ingots are sequentially transferred to the cycle induction heating furnace J i: i. The ϊ 机械 robot arm 3 transmits the specified metal ingot m processed by the cycle induction heating furnace 2 to the-injection port of the semi-solid forming machine 5 ;:. The latter handle, two = indicates that according to the cycle induction device τ in the figure 2-8, the piano cycle induction heating furnace 2 includes the ancient green eo ^ 0 The general master-Rucheng a dry wire ® S1, S2 and other two coils The 4R series is not based on the frequency response in Figure 2A: The heat furnace 2 in Figure 4B includes the coil S1, and the frequency response includes 5 sets of coils, including S4 and S5. Bright. 4 The frequency induction heating method proposed by the present invention proposes that the main purpose of the present invention is that each coil (S1, :: device 'has the following characteristics: The heating output power of the segment has at least two stages of sheep to Japan , Set function 'and output of each stage

506865 V. Description of the invention (12) Power system is fixed (b) Each coil (si, S2, S3, control circuit 22 and at least one power supply device = At least-control unit, S2, S3, S4, S5) The system can be independent (Fig. 2): In this way, each coil is heated. (C) Coils of 70% 4 sintered metal ingots M (S1, S2, S3, S4, π, # Number of withdrawals, wire diameter, inner and outer diameter dimensions are all the same == same shape (around S3, S4, S5) The same installation method is adopted ^ and the coils (SI, S2, thermal control method, and input voltage are the same), the control circuit, and the design of the heating method of the present invention. The original heat is provided for the installation of a temperature sensor. ^ A solid-state heating condition is learned, and Yan Yanyue is used. ^ Zhang 疋 metal ingot M is added x, then the frequency and the round power are equal; who cares; f thousand a # equal distribution of the curve, so as to obtain ：：： Principle of the heating order to obtain heating conditions and the method to learn directly through the rotary operation mode. The heating sequence of the fixed heating is an ingot, which is set by the coil on the lifting mechanism. Nine: Sense the axis of the circle and start to descend sequentially. For the jealous M 4 ΛΛ α ", ^, after the heating is completed, the lifting mechanism immediately descends, and the square-rotation motion sequence is as follows: After the end of the heating, ten, and the heating, lift the 樯 Μ I ★ Do not U-type heating As mentioned above, but increase and replace-S r drop, the turntable rotates forward-grid, the heating coil of the lifting mechanism: 1 heating coil continues heating, and so on, the tank can be opened and the way of rotation can be changed as follows: 〃 It belongs to the support on the turntable, under the heating coil. Page 15 0178-6294TW; MRL-P-890056; A! Ex.ptd V. Description of the invention (13): To cover the entire metal ingot, and then start to add-coil Ascending, the turntable is turned forward, and a heating coil is provided for the fixed heating under the heating r ^. [Solid heating] Please refer to Fig. 7 at the same time. Fig. 7 shows the cycle induction installation process equipment of the present invention. The electrical diagram of the electrical appliance. Zhifeng solid molding is automatically performed on the fixed heating. ”In addition, # a pinch on the feeding table 4 is Hong Taili = the first error is caused by the robot arm 3 (such as the 4A, 4B). Placed on the turntable support base 12 at a position not shown in the figure X), p knows that the leather _ will drive the tray 14 along the axis j = the specified metal on the motor ^ drive _ to Shun Turn the clockwise hand so that the position X number of coils (SI, S2, S3, S4 the stroke refers to the re-release Further, the inside of the coil S1 corresponding to the adjacent coil is passed through the screw 17, so that the t ingot rises to the specified heating stage .... The metal ingot M set by the beam designation line 退出 exits the finger ° After the fixed beam line S1, the specified heating can be performed by the // screw 17. 疋 The green circle M, so that the next metal ingot should be fixed. The heating conditions under the type plus & heat learning include the following steps ： A meter far fixed heating is divided into n fixed stages, the n fixed P white ¥ also includes a brother "—fixed 卩 ratio f ^ 口 疋 ^ section one two fixed stages, one third fixed white and n 1 fixed stage and n fixed stages of the η fixed stage ^ Each fixed stage of the η fixed stages has a fixed stage temperature value ^ solid 疋 ^ ^ and power value, the fixed stage temperature of the η fixed stage

506865

V. Description of the invention (14) The value and the fixed stage power value are respectively set to the set temperature value and the set power value of the designated metal ingot M; (b) Based on the first fixed stage by the designated coil s 1 The fixed stage temperature value and the fixed stage power value are used to heat the designated metal spin M having the temperature sensor; (c) recording that the designated metal ingot μ is raised from the first temperature to the fixed stage of the first fixed stage A first heating time of the temperature; (d) when the temperature of the designated metal ingot μ reaches the solid stage temperature value of the first fixed stage, 'set the coil to the fixed stage power value of the second fixed stage; e) continue heating the designated metal ingot M having the fixed stage temperature of the first fixed stage; (f) s has recorded that the designated metal ingot M is raised from the fixed stage temperature value of the first fixed stage to the second fixed stage A second heating time of the fixed stage temperature of the stage; (g) repeating steps (e)-(f) until the specified metal ingot is heated from the fixed p of the n-th fixed stage, wu, u 疋丨 From dumpling temperature value, Recording the designated ingot Μ from the first η fixing stage -1 fixing stage of the ,, Tin sores heart | white slave / dish values & Jian to the second η fixing stage temperature fixing stage of a second η heating time;

(h) Convert the temperature value of the fixed phase relative to the power value of the fixed phase into time relative to the power value of the fixed phase in each of the fixed phases.:! Each: The heating time for each ΐ phase is -total heating time, and borrow Obtain the heating power vs. time curve from the total heating time; α) Divide the total heating time by the number of coils to obtain a heating avoidance.

V. Description of the invention (15) period; (j) Define the heating cycle as a total of another heating time; (k) Equally divide the heating power logarithmic rotary heating stage under a $ 疋 rotary heating , The total heating time of each of the 4 curves is a complex temperature value and a rotation stage work = the rotary heating stage has a rotation stage and a rotary heating stage; 'each of these coils is assigned at least (υυ 定 · The power value of the step of the formula plus 埶 is converted into the stage temperature value, step value and a rotation stage power value of each of these filaments. The industrial heating stage has a rotation stage temperature (m) under the heating of the plural formula after heating The heating power is poor for the fixed distribution. The adjustment of the guard curve and heating conditions are explained below with respect to the multiple coils (the factors a, S4, and S5 at the fixed stage of S1 and s2) and n equal to 5. The heating steps related to the heating method of the masonry heating and the rotary heating are described as follows. Before setting, at least 1 KK: ^::? Force: learning of thermal conditions. Temperature of heating (N = 5, fifth fixed stage) After setting two: fixed At the same time, at the same time, the setting of the last 4 centered metal ingot M, that is, the metal is maintained at the η; degree ;; power rate: set to the insulation power, the metal ingot M is detected at any time during the heating process: ::: 'Next' at the actual temperature of Meng Tong ingot M. Page 18 0178-6294TW; MRL-P-890056; Alex.ptd V. Description of the invention (16) Start heating with the set power of the first group when its-temperature When the device automatically switches to the second ^: to the first stage, the computer processor 23 automatically records the first-order σ thermal power, and at the same time, the sample is heated when the temperature of the specified metal ingot M reaches and consumes. Time. Same as three stages, and record the second stage, and set the temperature, that is, proceed to the final stage. From the above, heating time, so you can easily change the power from the fixed stage temperature to the vibration $ Force: The parameter of the thermal stage (11) will add the additional work obtained from the previous study: day-to-day versus power. Divide the heating time of the mouth by the number of coils 5 and each curve is based on the total heating cycle. At the same time, take This time interval is two, that is, the rotary heating: the lines are then sequentially assigned to The coils S1, 2'1 heating power versus time 'each coil S1, S2, S3, sJC, S4, S54 segments. It has at least one heating step heating, and uses the above and the micro ::] : Post-conditions' for fixed heating :: = force: heat. Then according to the addition and adjustment, and then the distribution of heating conditions and other forces; Force: fine-tune the time curve to get accurate heating conditions. Heat 'This is repeated repeatedly when the position of the metal ingot semi-solid forming seat is not directly above' ^, when there are two metal ingot supports, where the-position pneumatic brush. When the metal spin heating Xia only belongs to the brush holder, and the main> ;,-Robot arm is used to replenish new metal ingots. For example: If you come to another place, you will be provided with mining, heating, and replenishment. 506865 V. Description of the invention (17) belongs to 1; 5 belongs to map support / Λ cleaning: can be completed at the same time. (AB ;-), it can be seen that the solid metal ratio (hen. &Quot;.) Η = Temperature is measured by the specified metal ingot 1 ^ through a thermal difference analyzer? No). The graph.… When the solid phase rate is 40% by volume, set the specified metal boring M Λ 舳 铉, the degree and force are 570 c. Because it is necessary to shorten the casting ”ί The fixed stage temperature is 57 (rc Second, the heating time must be as short as possible, so the temperature in the fixed phase is 535 t. Quickly heat up to § "疋 metal ingots when the temperature detection reaches the fixed phase temperature 53 Program 23 in the processor # 剑 ， acre waste From * Ye Caicai ~ use micro-electricity to reduce the output power of the induction furnace. The total heating time is recorded by the computer under the same temperature.) Also, the square power belongs to the ingot _ fixed stage temperature 555. When it is heated, it will output heat. The power drops to 12 kW, reaches a fixed phase temperature of 565, and then falls to the 7 · 讣 boundary, and reaches a fixed phase temperature of 568 t, to 55 kw, until the temperature of the designated metal bond M reaches the nth fixed phase temperature of 57. c is to stop heating. The chart 6 shows that the microcomputer processor 23 automatically records the Curve graph of the output power of a fixed-frequency ingot M heated to a semi-solid frequency furnace (p〇wer) and the specified metal sharp temperature (Temperature) versus time (~) The output power of the frequency furnace is evenly distributed to S1 to S5 The 5 sets of lines / (Time) are equally divided into tl, ~ t5, etc. The human watch system represents the above-mentioned set parameters and the obtained heating time results, where 'total heating time is 320 seconds, and when the heating When the time is evenly divided into 5 groups of coils (S1 ~ S5), the heating time of each coil S1 ~ S5 is 64 seconds, and each

506865 V. Description of the invention (18) The heating power and time of coils S1 ~ S 5 are shown in Table 2. Table 1. Induction heating parameters and heating time setting parameters. Result: The temperature range of the specified metal ingot M during the heating phase. Heating power (co) (kW) during heating. 1 Room temperature (first temperature) ~ 535 45 66 2 535 ^ 555 18 79 3 555-565 12 86 4 565-568 7.5 29 5 567-570 5.5 60 j 22 Two, the table 1 heating power is evenly distributed to 5 coils (S1 ~ S5) Coil S1 Coil S2 Cotton F | S3 ^ m S4 De R heating stage power time power time power time power time power time power time 1 45 64 45 2 18 17 12 ο Λ 2 f 18 62 12 47 δ 25 ο 5.8 Η 60

The numerical values in Table 2 are the results obtained by the microcomputer processor 23 based on the automatic calculations in Table 1. Next, the rotation operation mode is executed. # The specified metal ingot M is sequentially heated through the coil S1 to the coil S5 using the conditions in Table 2.

After the heating is completed, we find that the temperature of the specified metal ingot M is only 566 t, which is slightly lower than the set η fixed stage temperature of 570 ° C. This may be that during the rotary heating operation, the specified metal ingot M is intermittently heated, the intermediate time is the time it takes for the specified metal ingot M to move from one coil to another, and the energy loss of the specified metal ingot M. We fine-tuned the heating conditions' to increase the heating time of the highest heating power of 45kW in Table 1 by 2 seconds, and shorten the time of 5.5kW to 58 seconds, as shown in Table 3. # Ⅲ. Induction heating parameters and heating time (after fine-tuning) Setting the parameter result The heating stage specifies the heating temperature of the metal ingot M temperature zone heating time rc) (kW) (seconds) 1 Room temperature (first temperature) ~ 535 45 68 2 535-555 18 79 3 555-565 12 one- 86 4 565 ~ 568 7.5 ----- one 29 5 567 ~ 570 5.5 58

The heating conditions of the five coils S1 to S5 after this automatic distribution are shown in Table 4 ^. Retry heating again. As a result, the fixed stage temperature of the n-th metal ingot was 571 t :, which was close to the target value. Using the method described above, we can easily achieve optimal heating conditions.

50〇6865

Although the present invention has been limited to the present invention by any means, anyone who is familiar with this technique is the same as above, but it is not intended to be used within the scope of arsenic. It can be used as a modification and a moisturizer. The scope of application for patents ^ The scope of protection of the present invention shall prevail.

0178-6294TWF; MRL-P-890056; Alex.ptd p. 23

Claims (1)

506 (month 865 ^ j 月 日 {owing to X, patent application scope— ~ — 1 · A cycle induction heating method, where a plurality of metal spins include a set temperature value: the heating method includes the following steps: ^ wave induction (a)疋 heating by one of these coils at w $ jfc: f now belongs to the spindle who i θ & coil pair. "Say that the metal is wide and the heating is heating. Xiao fixed heating includes a fixed phase, a second fixed phase, a third fixed phase ... a fixed-stage basin and a fixed phase basin 11 fixed phase Each stage of the stage has a fixed stage temperature value: one = power value, the fixed stage temperature value and the rate value of the fixed stage of η are set to the fixed / & Set temperature value, set power value; fly heating P white (b) by the specified coil based on the fixed power value of the first fixed stage for the / X enemy with a first temperature and the temperature sensor Heating, (C) recording the time for the designated metal ingot to rise from the first temperature to the fixed stage temperature of the first ancient period as the first heating time; (d) reaching the first fixation at the suspected temperature of the designated metal When the temperature of the solidification phase of the phase is set, the coil is set to the power value of phase a of the second fixed phase; and then fixed (e) For the specified metal ingot having the fixed phase temperature of the first fixed phase, The power value of the fixed phase in the fixed phase continues to increase. (F) Record that the temperature value of the specified metal ingot is raised from the fixed phase of the first fixed phase to 0 and two of the fixed phase temperature in the second fixed phase. Heating time Positive I 7 supplement id 6. Apply for ~ Pad Ω fixed order, 2 = ^) ~ (f) until the specified metal spin is heated to the temperature value of the ... fixed segment, record the specified metal ... Fixed phase, // / 1 \ The time for the stage temperature to rise to the 11th fixed stage & / presentity is the η heating time; the fixed ρΓ stage ^ m fixed stage temperature value of the fixed stage relative to the two = For time relative to the power value of the fixed stage, combined with the fixed pair Γ curve, the curve is formed by η, where the first soil fixed plus stage is combined with the right brother! Heating time and the stage The heating power set value "" Yes (ϋ Divide the total heating time in the above step (h) by this item and pay a heating cycle; find the number of circles in the (,), inner circle (j) Define the heating cycle One by one, the total heating time; (k) under your slave rotary heating divides the total heating time into complex ^ ^^ „Λ ^ power values during the turning phase, each of these coils is assigned to w, 22, Value and one spin segment; ^ rotary heating stage ^ CD has the specified metal ingot phase of step U) above The first temperature of the handle, the same shape and size of the other-specified gold & material and geometrical heating method is that the metal ingot sequentially goes through the above step (i) heating in a rotary type plus coils, and at the same time Individual heating process step j) The individual coil heating procedures obtained by the (k) and other distributions are the same as the above-mentioned steps ⑷ compare the above-mentioned steps 旋转 the temperature of the metal residue after the rotation Γ heating page 27 I 2002 · 08 · 06 · The scope of the patent application is to modify the temperature setting value of the final stage of the fixed heating in the above step (a). If the temperature of the 17 is slightly lower (higher) than the latter, then slightly increase (lower) at least one of the above step (h). In the heating power or time of the heating method, the above steps (h) and (丨) are repeated until the final temperature of the rotary heating metal ingot is close to the set value. 2. The cycle induction heating method described in item 1 of the scope of the patent application, wherein 'compared to each of the second stage, the third stage ... the n-1th stage and the nth stage heating power, the first The heating power of one stage has the maximum value. 3. The cycle induction heating method according to item 1 of the scope of the patent application, wherein the temperature value of the fixed phase of each of the η fixed phases is an incremental manner from the first fixed phase to the η fixed phase increase. 4. If applying for more than one coil, it includes each tray. 6. If applying for exclusive complex numerical control, it also includes iso-coil. 7. If the application includes more than 8. Conducting below the line temperature, there is at least one of the cycle induction heating methods described in item 1 of the cycle range, ’The tray is used to carry the metal ingots. The cycle induction heating method described in the first range of the Lee range, the wave generator, the cycle generators are connected to the cycle induction addition method described in the first range of the Lee range, and the circuit is not connected to the circuit. For each of these specifications, the cycle induction heating method described in item 1, a processor, and the processor electric vehicle induction device are used for a plurality of coils. Heating, the frequency induction device; = ingot in its liquid phase includes a plurality of heating lines Page 28, 2002. 08. 〇6. 028 90113329 6. Scope of patent application 1 = In the multiple cycle generator and multiple metal ingot support base, among which, the characteristic-circle coil is individually electrically connected to these cycle generators. At least the isoline ί and at least the control circuit of these control circuits, and the adjacent green circle 4 is parallel to each other and is symmetrical to an axis, any two phases of the coils + circle = circle angle to the axis Is [36〇 degrees + (the number of coils η), “η is an integer greater than or equal to zero. 9 · ^ Please refer to the cycle induction addition rate described in item 8 of the patent scope line ΪΪ; then the cycle generator system The same characteristics are the same. Each-the special coil diameter, winding method and the number of turns and other special features A 10. As claimed in the application of the patent application of the eighth cycle of the induction heating device, these coils include At least two adjustable heating stages, the parameters of the f σ ”, and dagger stages are input parameters that can be specially heated by an input / output device, including a set of power values and a time: each should be repeated 11. Frequency induction induction as described in the scope of patent application No. 8 Device, each of these coils includes up to an adjustable = heating phase parameter that can be adjusted by an input / output device; the turn-in parameters for the special heating phase include a set of power and temperature values. The 12. The cycle induction heating device as described in item 8 of the scope of patent application, including a plurality of processors, each of which is electrically connected to at least one processor. 1, 3 · As the first scope of patent application The cycle induction heating device according to item 2, wherein the processor is a single chip. The 29th purchase 2002. 08. 06. 029 Sixth, the scope of application for patents Set = · The weekly induction heating device described in item 13 of the scope of the claim, the second line is a programmable controller. 1 5 · If you apply for a patent Fan Yuan 筮 β # Among them, under the induction coil! 2 cycle induction heating device, the value is [degree η coil number ⑻] Γ is provided-turntable, the feed of the turntable 1 6 · If the patent application Gionyuan also includes a plurality of support bases 4 = described post induction heating device , key. The f net support base is used to support the metals. 1J: Shen: The cycle induction force σ heating device described in item 8 of the above range, and the lifting mechanism is connected to the turntable. * ^ The cycle induction heating device described in item 8 of the scope of interest, J has to ^-Proximity switch 'The proximity switch is adjacent to the cycle induction heating device described in item 8 of the 19 · ϋ patent range in the branch basin, Guan Jia, the heating operation party # 办 & + heat, the fixed type plus two each wish to have a fixed heating and a rotary type = type: heat refers to the metal keys through different heating lines? Nl by / Phoenix, the heating time of each of these heating coils is the same. It also includes the cycle induction heating device described in item 8 of the Gu Yi ^ Qing patent scope, which is connected to the current # R: 轮 wheel input and output equipment, the operation input and output equipment is an electrical connector, 4 temple cycle generator. Straight Ί:!, Please use the cycle induction and heating device described in item 8 of the patent, 22 of which are computer operations. • The cycle induction heating device described in item 8 of the scope of patent application, Page 30 2002 · 08. 〇6 · 〇3〇 506865 91 · March 3S. 7 amendment 90113329 Name Amendment 6. Scope of patent application Among them, the operation input / output device is a man-machine interface for inputting heating conditions and selecting a heating mode. Ιϋϋι Page 31 2002. 08. 06. 031