TWI774560B - Loading jig for wire coil and heat treatment method for wire coil using the same - Google Patents

Loading jig for wire coil and heat treatment method for wire coil using the same Download PDF

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TWI774560B
TWI774560B TW110134514A TW110134514A TWI774560B TW I774560 B TWI774560 B TW I774560B TW 110134514 A TW110134514 A TW 110134514A TW 110134514 A TW110134514 A TW 110134514A TW I774560 B TWI774560 B TW I774560B
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wire coil
inner space
support
loading
coil
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TW110134514A
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TW202216572A (en
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浅井康一郎
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日商大同特殊鋼股份有限公司
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    • 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0006—Details, accessories not peculiar to any of the following furnaces
    • C21D9/0025—Supports; Baskets; Containers; Covers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility

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  • 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 Treatment Of Strip Materials And Filament Materials (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)

Abstract

本發明係有關一種線材捲線用之裝載治具1及使用其之線材捲線之熱處理方法，該線材捲線用之裝載治具1具備有：第一載置板2，其載置下側線材捲線W1；第二載置板3，其位於第一載置板2之上方且載置上側線材捲線W2；第一支柱4，其介於該等載置板之間，以支撐第二載置板3；第一蓋體8，其將下側線材捲線W1之上端封閉；第二蓋體9，其將上側線材捲線W2之上端封閉；第一氣體流道11，其沿板厚方向貫通第一載置板2，將來自第一載置板2下方朝上方之氣流，導入至下側線材捲線W1之內側空間W1a；及第二氣體流道13，其被構成為包含沿軸向在第一支柱4之內部所形成的流道26，且將氣流導入至上側線材捲線W2之內側空間W2a。 The present invention relates to a wire coil loading jig 1 and a heat treatment method for the wire coil using the same. The wire coil loading jig 1 is provided with: a first placing plate 2 on which the lower wire coil W1 is placed. ; The second placement plate 3, which is located above the first placement plate 2 and mounts the upper wire coil W2; the first support 4, which is interposed between the placement plates to support the second placement plate 3 The first cover body 8, which closes the upper end of the lower wire coil W1; the second cover body 9, which closes the upper end of the upper wire coil W2; the first gas flow channel 11, which runs through the first carrier along the plate thickness direction The placing plate 2 introduces the upward airflow from the lower part of the first placing plate 2 into the inner space W1a of the lower wire coil W1; The flow channel 26 formed in the interior of 4, and the air flow is introduced into the inner space W2a of the upper wire coil W2.

Description

線材捲線用之裝載治具及使用其之線材捲線之熱 處理方法 Loading jig for wire coil and heat of wire coil using the same Approach

本發明係有關一種對垂直裝載的線材捲線進行熱處理時所使用之線材捲線用之裝載治具及使用其之線材捲線之熱處理方法。 The present invention relates to a wire coil loading jig used for heat treatment of vertically loaded wire coils and a heat treatment method for wire coils using the same.

在將線材捲繞成捲線狀的線材捲線之熱處理中，加熱用或冷卻用之氣體被沿著捲線之外周流動，而流動在形成線材捲線的線材間之間隙的氣體為極少量。因此，在氣體接觸的線材捲線之表層部與氣體不接觸的內部之間之溫度差極大，而容易產生球化率之惡化、脫碳量之增加等在品質上之問題。 In the heat treatment of the wire coil in which the wire rod is wound into a coil shape, the gas for heating or cooling flows along the outer circumference of the coil wire, and the gas flowing in the gap between the wire rods forming the wire rod coil is very small. Therefore, the temperature difference between the surface layer portion of the wire coil in contact with the gas and the interior portion not in contact with the gas is extremely large, and quality problems such as deterioration of the spheroidization rate and increase of the decarburization amount are likely to occur.

為了縮小在線材捲線內外之溫度差，雖然亦可考慮減緩升溫‧冷卻速度、或延長均熱時間等，但是於此情形下會產生處理時間之延長、運作成本增加之問題。此外，當大氣冷卻時之冷卻速度緩慢之情形下，則容易產生難酸洗性鏽皮(scale)，進而降低酸洗性。 In order to reduce the temperature difference between the inside and outside of the wire coil, it is possible to slow down the heating and cooling rate, or extend the soaking time, etc. However, in this case, the problem of prolonging the processing time and increasing the operating cost will occur. In addition, when the cooling rate during atmospheric cooling is slow, a hard-to-pick-washable scale is likely to be generated, thereby lowering the pickling-ability.

作為用來縮小在線材捲線內外之溫度差的手段，於下述專利文獻1中揭示有以下之特徵：藉由設置封閉線材捲線上端之封閉板(蓋部)，使自線材捲線之內側空間下方朝上方吹入氣體，自線材捲線之內徑側向外朝外徑側流通，而在短時間且均勻地將線材捲線加熱。然而，專利文獻1所記載之技術內容係以不進行線材捲線之多層裝載為前提者，專 利文獻1並未揭示有用來對多層裝載之線材捲線均勻地進行加熱(冷卻)的具體之構成。 As a means for reducing the temperature difference between the inside and outside of the wire coil, the following patent document 1 discloses the following feature: by providing a closing plate (cover) for closing the upper end of the wire coil, the temperature from below the inner space of the wire coil is The gas is blown upward and flows from the inner diameter side of the wire coil to the outer diameter side, and the wire coil is heated uniformly in a short time. However, the technical contents described in Patent Document 1 are based on the premise that the multi-layer loading of the wire coil is not performed, and the Patent Document 1 does not disclose a specific configuration for uniformly heating (cooling) a wire coil wound in multiple layers.

[先前技術文獻] [Prior Art Literature] [專利文獻] [Patent Literature]

專利文獻1：日本國專利第2913727號公報 Patent Document 1: Japanese Patent No. 2913727

本發明係以如上述之情形作為背景，目的在於提供一種線材捲線用之裝載治具及使用其之線材捲線之熱處理方法，其可改善多層裝載之線材捲線的熱處理時之氣流，且可縮小線材捲線內外之溫度差。 The present invention is based on the above-mentioned circumstances, and aims to provide a wire coil loading jig and a heat treatment method for a wire coil using the same, which can improve the airflow during the heat treatment of the multi-layer loaded wire coil, and can reduce the size of the wire The temperature difference between the inside and outside of the coil.

本發明人等為了解決上述問題，經反覆刻意探討之結果，思及並完成如下述之本發明。 In order to solve the above-mentioned problems, the inventors of the present invention have considered and completed the following invention as a result of repeated and deliberate investigations.

本發明第一態樣之線材捲線用之裝載治具係規定如下。亦即，一種線材捲線用之裝載治具，其係將複數個線材捲線保持在上下方向垂直裝載之狀態的線材捲線用之裝載治具，其具備有：第一載置板，其載置下側線材捲線；第二載置板，其位於上述第一載置板之上方且載置上側線材捲線；第一支柱，其介於該等載置板之間，以支撐上述第二載置板；第一蓋體，其將上述下側線材捲線之上端封閉；第二蓋體，其將上述上側線材捲線之上端封閉； 第一氣體流道，其沿板厚方向貫通上述第一載置板，將來自上述第一載置板下方朝上方之氣流，導入至上述下側線材捲線之內側空間；及第二氣體流道，其被構成為包含沿軸向在上述第一支柱之內部所形成的流道，且將上述氣流導入至上述上側線材捲線之內側空間。 The loading jig for the wire coil of the first aspect of the present invention is defined as follows. That is, a loading jig for wire coils, which is a loading jig for wire coils that keeps a plurality of wire coils in a state of being vertically loaded in an up-down direction, comprising: a first placing plate on which a lower a side wire coil; a second placement plate, which is located above the first placement plate and mounts the upper wire coil; a first pillar, which is interposed between the placement plates to support the second placement plate ; The first cover, which closes the upper end of the above-mentioned lower wire coil; the second cover, which closes the upper end of the above-mentioned upper wire coil; a first gas flow channel, which penetrates through the first placing plate in the plate thickness direction, and guides the airflow from the bottom of the first placing plate to the upper side into the inner space of the wire coil on the lower side; and a second gas flow channel , which is configured to include a flow channel formed in the inside of the first support in the axial direction, and to introduce the airflow into the inner space of the upper wire coil.

根據如此規定之第一態樣的線材捲線用之裝載治具，可藉由第一氣體流道將氣流導入至下側線材捲線之內側空間，並且，可藉由第二氣體流道將氣流導入至上側線材捲線之內側空間。亦即，可將氣流導引至垂直裝載之各線材捲線之內側空間。 According to the loading jig for the wire coil of the first aspect defined in this way, the air flow can be introduced into the inner space of the lower wire coil through the first gas flow passage, and the air flow can be introduced through the second gas flow passage To the inner space of the upper wire coil. That is, the airflow can be guided to the inner space of each wire coil which is loaded vertically.

被送入至各線材捲線之內側空間內的氣體，係自線材捲線之內側空間的上端部流出之氣體藉由蓋體被阻止，且通過構成線材捲線的線材之間隙，自內徑側朝外徑側流通。如此，於第一態樣之線材捲線用之裝載治具中，無論在多層裝載之哪一線材捲線中，皆可改善熱處理時之氣流，縮小捲線內外之溫度差。 The gas fed into the inner space of each wire coil is blocked by the cover body, and the gas flowing out from the upper end of the inner space of the wire coil is blocked by the cover, and passes through the gap between the wires constituting the wire coil, from the inner diameter side to the outside Radial flow. In this way, in the wire coil loading jig of the first aspect, no matter which wire coil is loaded in multiple layers, the airflow during heat treatment can be improved, and the temperature difference between the inside and outside of the coil can be reduced.

本發明之第二態樣，係規定如下。亦即，於第一態樣規定之線材捲線用之裝載治具中，在沿上述第一支柱之軸向可移動地設置上述第一蓋體，且將上述第一蓋體載置於上述下側線材捲線之上端。 The second aspect of the present invention is defined as follows. That is, in the loading jig for wire coils specified in the first aspect, the first cover body is provided so as to be movable along the axial direction of the first support column, and the first cover body is placed on the lower side. The upper end of the side wire coil.

根據如此規定第二態樣的線材捲線用之裝載治具，即使在因負載崩潰等而造成下側線材捲線上端之位置產生變化之情形下，由於第一蓋體亦隨其變化，因此可良好地維持將下側線材捲線之上端封閉之狀態。 According to the wire coil loading jig of the second aspect specified in this way, even when the position of the upper end of the wire coil on the lower side changes due to load collapse or the like, since the first cover body also changes accordingly, it is possible to obtain a satisfactory performance. The upper end of the lower wire coil is kept closed.

本發明之第三態樣，係規定如下。亦即，於第一或第二態樣中所規定之線材捲線用之裝載治具中，於上述第 一支柱之上方且上述上側線材捲線之內側空間內設置有第二支柱，且通過被形成在上述第二支柱之開口，將上述氣流導入至上述上側線材捲線之內側空間。 The third aspect of the present invention is defined as follows. That is, in the loading jig for the wire coil specified in the first or second aspect, in the above-mentioned paragraph A second support is provided above a support and in the inner space of the upper wire coil, and the airflow is introduced into the inner space of the upper wire coil through an opening formed in the second support.

根據如此規定之第三態樣的線材捲線用之裝載治具，可藉由第二支柱抑制上側線材捲線之負載崩潰，並且可藉由被形成在第二支柱的開口，控制氣流朝上側線材捲線之內側空間的吹出方向。 According to the wire coil loading jig of the third aspect defined in this way, the load collapse of the upper wire coil can be suppressed by the second support, and the air flow can be controlled to the upper wire coil by the opening formed in the second support The blowing direction of the inner space.

本發明之第四態樣，係規定如下。亦即，一種線材捲線之熱處理方法，其係使用第一至第三態樣之任一態樣中所規定之線材捲線用之裝載治具的線材捲線之熱處理方法，其中，對垂直裝載捲線體供給自上述垂直裝載捲線體之下方朝向上方之氣流，該垂直裝載捲線體係在上述裝載治具之第一載置板及第二載置板分別載置藉由上述第一蓋體及上述第二蓋體將上端封閉的上述下側線材捲線及上述上側線材捲線所成，各別使上述氣流通過上述第一氣體流道而導入至上述下側線材捲線之內側空間，並且通過上述第二氣體流道導入至上述上側線材捲線之內側空間。 The fourth aspect of the present invention is defined as follows. That is, a method of heat treatment of a wire coil, which is a heat treatment method of a wire coil using the loading jig for the wire coil specified in any one of the first to third aspects, wherein the coil body is vertically loaded. The air flow is supplied from the bottom of the vertical loading reel to the upper side, and the vertical loading winding system is placed on the first and second loading plates of the loading jig by the first cover and the second respectively. The cover body is formed by closing the upper end of the lower wire coil and the upper wire coil, and the air flow is introduced into the inner space of the lower wire coil through the first gas flow passage, respectively, and the second gas flow passes through. The channel is introduced into the inner space of the above-mentioned upper wire coil.

根據如此規定之線材捲線之熱處理方法，其可獲得與第一態樣相同之效果。 According to the heat treatment method of the wire coil thus specified, the same effects as those of the first aspect can be obtained.

1:裝載治具 1: Loading the jig

2:第一載置板 2: The first mounting plate

3:第二載置板 3: Second mounting plate

4:第一支柱 4: The first pillar

6:第二支柱 6: Second Pillar

8:第一蓋體 8: The first cover

9:第二蓋體 9: Second cover

10:第一貫通孔 10: The first through hole

10a、10b、10c、10d:孔 10a, 10b, 10c, 10d: holes

11:第一氣體流道 11: The first gas flow channel

12:第二貫通孔 12: Second through hole

13:第二氣體流道 13: Second gas flow channel

15:支柱支撐部 15: Pillar support

17:外周面 17: Outer peripheral surface

18:細徑部 18: Small diameter part

19:階梯面 19: Step face

21:上端開口 21: upper end opening

26:流道 26: runner

30:彎折部 30: Bending part

32:貫通孔 32: Through hole

34:貫通孔 34: Through hole

38:柱狀構件 38: Columnar components

39:連結板 39: Link Board

40:開口 40: Opening

41:內部空間 41: Interior Space

44、44-1~44-6:垂直裝載捲線體 44, 44-1~44-6: vertical loading reel

50:分批式熱處理爐 50: Batch heat treatment furnace

52:裝入取出台 52: Loading and unloading table

54:熱處理室 54: Heat treatment room

54a:開口 54a: Opening

55:門 55: Door

56:滑輪 56: Pulley

57:輥 57: Roller

68:輻射管燃燒器 68: Radiant tube burner

70:氣體循環裝置 70: Gas circulation device

72:管道 72: Pipes

72a:氣體吹出口 72a: Gas blowing outlet

72b:氣體吸入口 72b: Gas suction port

74:循環風扇 74: Circulation Fan

75:驅動馬達 75: drive motor

77:溫度感測器 77: Temperature sensor

80:冷卻裝置 80: Cooling device

81:處理室 81: Processing Room

82:鼓風機裝置 82: Blower device

82a:氣體吹出口 82a: Gas blowing port

82b:氣體吸入口 82b: Gas suction port

84:配管 84: Piping

W1:下側線材捲線 W1: Lower wire coil

W2:上側線材捲線 W2: Upper wire coil

W1a:內側空間 W1a: inner space

W2a:內側空間 W2a: Medial space

圖1係顯示本發明之一實施形態之線材捲線用之裝載治具的立體圖。 FIG. 1 is a perspective view showing a loading jig for a wire coil according to an embodiment of the present invention.

圖2係圖1之線材捲線用之裝載治具的縱剖面圖。 FIG. 2 is a longitudinal sectional view of the loading jig for the wire coil of FIG. 1 .

圖3係圖2之III-III線之剖面圖。 FIG. 3 is a cross-sectional view taken along line III-III of FIG. 2 .

圖4係顯示為了對使用本實施形態之線材捲線用之裝載治具的垂直裝載捲線體進行熱處理之熱處理爐之構成的圖。 FIG. 4 is a view showing the configuration of a heat treatment furnace for heat treatment of a vertically loaded coil body using the loading jig for wire rod coil according to the present embodiment.

圖5係圖4之熱處理爐中之熱處理室的剖面圖。 FIG. 5 is a cross-sectional view of a heat treatment chamber in the heat treatment furnace of FIG. 4 .

圖6係顯示用來冷卻該垂直裝載捲線體的冷卻裝置之構成的圖。 Fig. 6 is a diagram showing the configuration of a cooling device for cooling the vertically loaded reel.

以下參照圖式，對本發明一實施形態之線材捲線用之裝載治具詳細地進行說明。圖1為顯示本實施形態之線材捲線用之裝載治具的立體圖，圖2為線材捲線用之裝載治具的縱剖面圖。 Hereinafter, the loading jig for wire coils according to one embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view showing a loading jig for wire coiling according to the present embodiment, and FIG. 2 is a longitudinal cross-sectional view of the loading jig for wire coiling.

於圖1、2中，符號1係在將使線材捲繞成捲線狀作為被加熱對象的線材捲線保持在上下方向裝載2層之狀態的線材捲線用的裝載治具，其被構成為包含：第一載置板2，其載置下側線材捲線W1；第二載置板3，其載置上側線材捲線W2；第一支柱4，其位於其等載置板2、3之間；第二支柱6，其位於第二載置板3之上方；第一蓋體8，其將下側線材捲線W1之上端封閉；及第二蓋體9，其將上側線材捲線W2之上端封閉。 In Figs. 1 and 2, reference numeral 1 denotes a wire coil loading jig for holding a wire coil wound in a coil shape as a heated object in a state of loading two layers in the vertical direction, and is configured to include: The first placing plate 2, on which the lower wire coil W1 is placed; the second placing plate 3, on which the upper wire coil W2 is placed; the first support 4, which is located between the other placing plates 2 and 3; The two pillars 6 are located above the second placing plate 3; the first cover 8 closes the upper end of the lower wire coil W1; and the second cover 9 closes the upper end of the upper wire coil W2.

第一載置板2係呈圓板狀，且於其中心部形成有以沿圓周方向延伸之俯視為圓弧狀之4個孔10a、10b、10c、10d所構成的第一貫通孔10、及位於第一貫通孔10內側之俯視為圓形的第二貫通孔12。如圖3所示，該等之第一貫通孔10及第二貫通孔12，係於俯視下形成在較被載置在第一載置板2上的下側線材捲線W1之捲線內周面靠內側。 The first placing plate 2 is in the shape of a disc, and a first through-hole 10, 10, and a second through hole 12 which is located inside the first through hole 10 and is circular in plan view. As shown in FIG. 3 , the first through-hole 10 and the second through-hole 12 are formed on the inner peripheral surface of the lower wire coil W1 placed on the first mounting plate 2 in a plan view. on the inside.

於本實施形態中，第一貫通孔10係構成第一氣體流道11，該第一氣體流道11係將自第一載置板2之下方朝向上方之氣流導入至下 側線材捲線W1之內側空間W1a。此外，第二貫通孔12係構成第二氣體流道13之一部分，該第二氣體流道13係將上述氣流導入至上側線材捲線W2之內側空間W2a。 In this embodiment, the first through-holes 10 constitute the first gas flow channel 11, and the first gas flow channel 11 guides the airflow from the lower side of the first mounting plate 2 toward the upper side to the lower side. The inner space W1a of the side wire coil W1. In addition, the second through hole 12 constitutes a part of the second gas flow channel 13, and the second gas flow channel 13 guides the above-mentioned gas flow into the inner space W2a of the upper wire coil W2.

再者，第一載置板2中之第一貫通孔10與第二貫通孔12之間之部位，係作為支撐第一支柱4的支柱支撐部15(參照圖2)。 In addition, the part between the 1st through-hole 10 and the 2nd through-hole 12 in the 1st mounting plate 2 is used as the support|pillar support part 15 (refer FIG. 2) which supports the 1st support|pillar 4. FIG.

第一支柱4係介於第一載置板2與第二載置板3之間，支撐第二載置板3，並且抑制因下側線材捲線W1之負載崩潰等所引起之變形。第一支柱4之下端部係與第一載置板2之支柱支撐部15一體地被接合。另一方面，於第一支柱4之上端部，其上端面與外周面17相交之隅角部係沿圓周方向被切口，且形成有在設置姿勢下位於上方的細徑部18及與其連續之朝向上方的階梯面19。如圖2所示，該階梯面19係與第二載置板3之下面接觸，以支撐第二載置板3。 The first support column 4 is interposed between the first placing plate 2 and the second placing plate 3, supports the second placing plate 3, and suppresses deformation due to load collapse of the lower wire coil W1 or the like. The lower end of the first support 4 is integrally joined to the support support 15 of the first mounting plate 2 . On the other hand, at the upper end portion of the first support column 4, the corner portion where the upper end surface intersects the outer peripheral surface 17 is notched in the circumferential direction, and the narrow-diameter portion 18 located above in the installation posture and the continuous portion thereof are formed. The stepped surface 19 facing upward. As shown in FIG. 2 , the stepped surface 19 is in contact with the lower surface of the second placing plate 3 to support the second placing plate 3 .

第一支柱4係中空之圓筒體，且於其內部具有沿軸向延伸的流道26。該流道26係與第一載置板2之第二貫通孔12連通，構成將氣流導入至上側線材捲線W2之內側空間W2a的第二氣體流道13之一部分。流通於該第二氣體流道13內的氣流，不會於途中朝下側線材捲線W1之內側空間W1a內流出，而被送入至上側線材捲線W2之內側空間W2a內。 The first support 4 is a hollow cylinder, and has a flow channel 26 extending in the axial direction in its interior. The flow channel 26 communicates with the second through hole 12 of the first mounting plate 2, and constitutes a part of the second gas flow channel 13 for introducing the gas flow into the inner space W2a of the upper wire coil W2. The airflow flowing in the second gas flow passage 13 is fed into the inner space W2a of the upper wire coil W2 without flowing out into the inner space W1a of the lower wire coil W1 on the way.

第一蓋體8係被載置在下側線材捲線W1之上端，封閉下側線材捲線W1之上端。第一蓋體8係形成大致圓板狀，且於其周緣形成有彎折部30，該彎折部30係用來抑制因負載崩潰等所引起之下側線材捲線W1之變形。 The first cover 8 is placed on the upper end of the lower wire coil W1, and closes the upper end of the lower wire coil W1. The first cover body 8 is formed in a substantially disc shape, and a bent portion 30 is formed on the periphery thereof for suppressing deformation of the lower wire coil W1 due to load collapse or the like.

此外，於第一蓋體8之中心部形成有圓形之貫通孔32。貫通孔32係被 形成為略大於第一支柱4之外周面17之直徑，第一蓋體8係利用插通於貫通孔32的第一支柱4之外周面17所導引，可沿第一支柱4之軸向移動。 In addition, a circular through hole 32 is formed in the center portion of the first cover body 8 . The through hole 32 is quilted The diameter of the first cover body 8 is formed to be slightly larger than the diameter of the outer peripheral surface 17 of the first pillar 4 . The first cover body 8 is guided by the outer peripheral surface 17 of the first pillar 4 inserted through the through hole 32 and can be guided along the axial direction of the first pillar 4 . move.

第二載置板3係呈圓板狀，且於其中心部形成有圓形之貫通孔34。貫通孔34係被形成為略大於第一支柱4之細徑部18，在貫通孔34與第一支柱4之細徑部18嵌合之狀態下，第二載置板3係利用第一支柱4之階梯面19支撐貫通孔34周圍之緣部。 The second placing plate 3 is in the shape of a disk, and a circular through hole 34 is formed in the center portion thereof. The through hole 34 is formed to be slightly larger than the small diameter portion 18 of the first column 4 , and the second mounting plate 3 uses the first column in a state where the through hole 34 is fitted with the thin diameter portion 18 of the first column 4 . The stepped surface 19 of 4 supports the peripheral edge of the through hole 34 .

第二支柱6係抑制因上側線材捲線W2之負載崩潰等所引起之變形，並且控制氣流朝內側空間W2a之吹出方向，且與第一支柱4同心狀地被配置在第一支柱4之上方且上側線材捲線W2之內側空間W2a內。 The second strut 6 suppresses deformation due to load collapse of the upper wire coil W2, and controls the blowing direction of the airflow to the inner space W2a, and is disposed above the first strut 4 concentrically with the first strut 4 and In the inner space W2a of the upper wire coil W2.

第二支柱6係由隔著間隔被立設於第一支柱4之上端開口21周圍的複數個柱狀構件38、及連結該等柱狀構件38上端的連結板39所構成。於本實施形態中，流通於第一支柱4之內部流道26的氣體被導入至第二支柱6之內部後，通過與鄰接柱狀構件38之間所形成之開口40，流出至上側線材捲線W2之內側空間W2a內。於本實施形態中，第二支柱6之內部空間41及開口40，亦構成第二氣體流道13之一部分。 The second column 6 is composed of a plurality of columnar members 38 erected around the upper end opening 21 of the first column 4 at intervals, and a connecting plate 39 connecting the upper ends of the columnar members 38 . In the present embodiment, after the gas flowing through the inner channel 26 of the first column 4 is introduced into the inside of the second column 6, it flows out to the upper wire coil through the opening 40 formed between the adjacent columnar member 38. In the inner space W2a of W2. In this embodiment, the inner space 41 and the opening 40 of the second pillar 6 also constitute a part of the second gas flow channel 13 .

第二蓋體9係被載置在上側線材捲線W2之上端，將上側線材捲線W2之上端封閉。其與第一蓋體8同樣，形成為大致圓板狀，且於其周緣形成有彎折部30。彎折部30係除了抑制上側線材捲線W2之變形外，於搬送時亦可防止第二蓋體9自上側線材捲線W2落下。 The second cover 9 is placed on the upper end of the upper wire coil W2, and closes the upper end of the upper wire coil W2. Like the first cover body 8 , it is formed in a substantially disk shape, and a bent portion 30 is formed on the peripheral edge thereof. The bent portion 30 not only suppresses the deformation of the upper wire coil W2, but also prevents the second cover 9 from falling from the upper wire coil W2 during conveyance.

於本實施形態中，使用如此所構成之裝載治具1，組裝垂直裝載有線材捲線W1及W2的垂直裝載捲線體44。垂直裝載捲線體44， 例如可使用如下所示之熱處理爐及冷卻裝置，實現使線材捲線內外之溫度差縮小之熱處理。 In this embodiment, using the loading jig 1 thus constituted, the vertical loading winding body 44 on which the wire winding wires W1 and W2 are vertically loaded is assembled. Load the reel 44 vertically, For example, a heat treatment furnace and a cooling device as shown below can be used to realize heat treatment to reduce the temperature difference between the inside and outside of the wire coil.

接著，對垂直裝載捲線體44之熱處理中所使用的熱處理爐及冷卻裝置進行說明。於圖4中，符號50係對垂直裝載捲線體44進行退火處理的分批式熱處理爐。於加熱爐50中，對垂直裝載捲線體44實施加熱→均熱→冷卻之各步驟。然後，使用後述之冷卻裝置80對自加熱爐50被取出之垂直裝載捲線體44實施大氣冷卻(急冷)之步驟。 Next, the heat treatment furnace and the cooling device used for the heat treatment of the vertically mounted coil body 44 will be described. In FIG. 4, the code|symbol 50 is a batch-type heat-processing furnace which performs annealing process with respect to the winding body 44 by which the vertical load was carried out. In the heating furnace 50 , the steps of heating→soaking→cooling are performed on the vertically mounted reel 44 . Then, the step of air cooling (quick cooling) is performed on the vertically loaded reel 44 taken out from the heating furnace 50 using a cooling device 80 to be described later.

此外，垂直裝載捲線體44之冷卻步驟，可根據需要進行變更。例如，可省略在加熱爐50的冷卻而僅利用後述之冷卻裝置80來實施、或者亦可僅利用加熱爐50來實施而省略在後述之冷卻裝置80的冷卻。 In addition, the cooling step of vertically loading the reel 44 can be changed as needed. For example, cooling in the heating furnace 50 may be omitted and only the cooling device 80 described later may be used, or only the heating furnace 50 may be used and the cooling by the cooling device 80 described later may be omitted.

加熱爐50具備有圖中左端之裝入取出台52及熱處理室54。熱處理室54係於圖中左前側形成有開口54a，通過開口54a進行垂直裝載捲線體44之裝入及取出。開口54a被設為可藉由門55來封閉。門55係經由鋼絲懸掛於滑輪56，且藉由滑輪56之旋轉而升降。 The heating furnace 50 includes a loading and unloading stage 52 and a heat treatment chamber 54 at the left end in the figure. The heat treatment chamber 54 is formed with an opening 54a on the left front side in the figure, and the vertically loaded reel 44 is loaded and unloaded through the opening 54a. The opening 54a is provided so that it can be closed by the door 55 . The door 55 is suspended from the pulley 56 via a wire, and is raised and lowered by the rotation of the pulley 56 .

熱處理室54被設為可收納6個垂直裝載捲線體44-1、44-2、…、44-6，且被假想地劃分成收納各垂直裝載捲線體44的6個區域。於各區域中配設有作為搬送手段的輥57。 The heat treatment chamber 54 is configured to accommodate six vertically mounted reels 44 - 1 , 44 - 2 , . Rollers 57 serving as conveyance means are arranged in each area.

於熱處理室54中，設置有複數個作為加熱室內之氣體的加熱手段之輻射管燃燒器68，且以室內各區域成為既定溫度所設定之方式控制輻射管燃燒器68之輸出。此外，熱處理室54具有已省略圖示之氣體供給配管，可將氮氣、RX氣體等還原性氣體適當地供給至室內。 The heat treatment chamber 54 is provided with a plurality of radiant tube burners 68 as heating means for heating the gas in the chamber, and the output of the radiant tube burners 68 is controlled so that the temperature of each area in the chamber is set to a predetermined temperature. In addition, the heat treatment chamber 54 has a gas supply piping (not shown), so that reducing gas such as nitrogen gas and RX gas can be appropriately supplied into the chamber.

圖5為在與垂直裝載捲線體44之搬送方向呈正交之方向 的熱處理室54之剖面圖，且顯示於室內裝入有垂直裝載捲線體44的狀態。 FIG. 5 is a direction perpendicular to the conveying direction of the vertical loading reel 44 The cross-sectional view of the heat treatment chamber 54 is shown, and the state in which the vertical loading reel 44 is loaded in the chamber is shown.

於熱處理室54中，除了輻射管燃燒器68外，亦設置有用來朝垂直裝載捲線體44吹入氣體的氣體循環裝置70。 In the heat treatment chamber 54 , in addition to the radiant tube burner 68 , a gas circulation device 70 for blowing gas into the vertically loaded reel 44 is also provided.

氣體循環裝置70係具備有管道72、被收納於管道72內部的循環風扇74、及使循環風扇74旋轉驅動的驅動馬達75。如該圖所示，管道72係形成彎曲形狀，於其一端部形成有氣體吹出口72a，該氣體吹出口72a係於垂直裝載捲線體44之正下方朝上方開口。另一方面，於管道72之另一端部形成有朝下方之氣體吸入口72b。循環風扇74被配置在該氣體吸入口72b之正上方位置。此外，符號77係溫度感測器。於本實施形態中，藉由與溫度感測器77連接之控制部(省略圖示)，使利用溫度感測器77所檢測氣體之溫度與預先被設定之目標環境氣體溫度一致之方式控制輻射管燃燒器68之燃燒。 The gas circulation device 70 includes a duct 72 , a circulation fan 74 accommodated in the duct 72 , and a drive motor 75 for rotationally driving the circulation fan 74 . As shown in the figure, the duct 72 is formed in a curved shape, and a gas blowing port 72a is formed at one end thereof, and the gas blowing port 72a is opened upward just below the vertical loading reel 44 . On the other hand, a gas suction port 72b facing downward is formed at the other end of the duct 72 . The circulation fan 74 is arranged at a position just above the gas suction port 72b. In addition, reference numeral 77 is a temperature sensor. In this embodiment, the radiation is controlled in such a way that the temperature of the gas detected by the temperature sensor 77 is consistent with the preset target ambient gas temperature by the control unit (not shown) connected to the temperature sensor 77 . Combustion of the tube burner 68.

於如此構成之熱處理室54中，藉由使氣體循環裝置70之循環風扇74旋轉並使利用輻射管燃燒器68被加熱的氣體通過氣體吸入口72b被吸引至管道72內，且自管道72之氣體吹出口72a朝上方吹出。 In the heat treatment chamber 54 thus constituted, the gas heated by the radiant tube burner 68 is sucked into the duct 72 through the gas suction port 72b by rotating the circulating fan 74 of the gas circulating device 70, and is removed from the duct 72. The gas blowing port 72a blows upward.

然後，朝上方之氣流的一部分通過垂直裝載捲線體44之第一氣體流道11被送入至下側線材捲線W1之內側空間W1a內。被送入至下側線材捲線W1之內側空間W1a內的氣體中自內側空間W1a之上端部所流出之氣體藉由第一蓋體8被阻止，然後通過構成下側線材捲線W1的線材之間隙，如箭頭所示自內徑側朝外徑側流通，一面將線材捲線內外之溫度差保持為最小，一面在短時間將下側線材捲線W1加熱至既定之加熱溫度。 Then, a part of the upward airflow is sent into the inner space W1a of the lower wire coil W1 through the first air flow passage 11 of the vertically mounted coil body 44 . Among the gases fed into the inner space W1a of the lower wire coil W1, the gas flowing out from the upper end of the inner space W1a is blocked by the first cover 8, and then passes through the gap between the wires constituting the lower wire coil W1 , which flows from the inner diameter side to the outer diameter side as indicated by the arrow, while keeping the temperature difference between the inside and outside of the wire coil to a minimum, the lower wire coil W1 is heated to a predetermined heating temperature in a short time.

同樣地，朝上方之氣流的其他一部分通過垂直裝載捲線體44之第二氣體流道13被送入至上側線材捲線W2之內側空間W2a內。被送入至上側線材捲線W2內側空間W2a內之氣體中自內側空間W2a之上端部所流出之氣體藉由第二蓋體9被阻止，然後通過構成上側線材捲線W2的線材之間隙，如箭頭所示自內徑側朝外徑側流通，一面將線材捲線之內外溫度差保持為最小，一面在短時間將上側線材捲線W2亦加熱至既定之加熱溫度。 Similarly, the other part of the upward air flow is sent into the inner space W2a of the upper wire coil W2 through the second air flow passage 13 of the vertically mounted coil body 44 . Among the gases fed into the inner space W2a of the upper wire coil W2, the gas flowing out from the upper end of the inner space W2a is blocked by the second cover 9, and then passes through the gap between the wires constituting the upper wire coil W2, as shown by the arrow As shown, it flows from the inner diameter side to the outer diameter side, and while keeping the temperature difference between the inside and outside of the wire coil to a minimum, the upper wire coil W2 is also heated to a predetermined heating temperature in a short time.

於加熱爐50中，在加熱之後進行均熱及冷卻。於冷卻之步驟中亦與加熱步驟相同，通過構成線材捲線W1、W2的線材之間隙，使既定溫度之氣體自內徑側朝外徑側流通，一面將線材捲線內外之溫度差保持為最小，一面進行下側線材捲線W1及上側線材捲線W2之冷卻。 In the heating furnace 50, soaking and cooling are performed after heating. The cooling step is also the same as the heating step. Through the gaps between the wires constituting the wire coils W1 and W2, the gas of a predetermined temperature is circulated from the inner diameter side to the outer diameter side, while the temperature difference between the inside and outside of the wire coil is kept to a minimum. The cooling of the lower wire coil W1 and the upper wire coil W2 is performed on one side.

圖6為顯示用來冷卻垂直裝載捲線體44之冷卻裝置80之構成的圖，且顯示在處理室81內裝入有垂直裝載捲線體44的狀態。於該圖中，符號82係對垂直裝載捲線體44供給朝上方之冷風(大氣)的鼓風機裝置，鼓風機裝置82之氣體吹出口82a被配置在垂直裝載捲線體44之正下方。符號84係形成於處理室81之側壁上部的氣體排出用之配管。 FIG. 6 is a diagram showing the configuration of a cooling device 80 for cooling the vertically mounted reel 44, and shows a state in which the vertically mounted reel 44 is housed in the processing chamber 81. As shown in FIG. In the figure, reference numeral 82 denotes a blower device for supplying upward cold air (atmosphere) to the vertically mounted reel 44 , and the gas blowing port 82 a of the blower device 82 is arranged just below the vertically mounted reel 44 . Indicated at 84 is a piping for gas discharge formed in the upper part of the side wall of the processing chamber 81 .

於如此構成之本實施形態之冷卻裝置80中，未被加熱之大氣被作為冷卻用之氣體，自氣體吸入口82b取入，且自鼓風機裝置82之氣體吹出口82a朝上方吹出。 In the cooling device 80 of the present embodiment thus constructed, the unheated air is taken in from the gas suction port 82b as the cooling gas, and is blown upward from the gas outlet 82a of the blower device 82.

並且，由於朝上方氣流之一部分通過垂直裝載捲線體44之第一氣體流道11而被送入至下側線材捲線W1之內側空間W1a內，並且朝上方氣流之其他一部分通過垂直裝載捲線體44之第二氣體流道13而被送入至上 側線材捲線W2之內側空間W2a內，因此於該冷卻步驟中亦與加熱步驟同樣，通過構成線材捲線W1、W2的線材之間隙，可使冷卻用之氣體自內徑側朝外徑側流通，一面將線材捲線內外之溫度差保持為最小，一面進行下側線材捲線W1及上側線材捲線W2之冷卻。再者，被用來冷卻之氣體通過氣體排出用之配管84而被排出至室外。 In addition, a part of the upward airflow passes through the first gas flow passage 11 of the vertical loading reel 44 and is sent into the inner space W1a of the lower wire coil W1, and the other part of the upward airflow passes through the vertically loading reel 44 The second gas flow channel 13 is sent to the top In the inner space W2a of the side wire coil W2, in this cooling step, similarly to the heating step, the cooling gas can be circulated from the inner diameter side to the outer diameter side through the gap between the wires constituting the wire coil W1 and W2. The lower coil W1 and the upper coil W2 are cooled while the temperature difference between the inside and outside of the coil is kept to a minimum. Further, the gas used for cooling is discharged to the outside through the gas discharge piping 84 .

如上所述，根據本實施形態之裝載治具1，其可改善多層被裝載之下側線材捲線W1及上側線材捲線W2中之氣流，縮小熱處理時之捲線內外之溫度差。藉此，根據本實施形態之裝載治具1，其不需要為了縮小溫度差而使升溫速度‧冷卻速度變慢，而可實現急速加熱‧急速冷卻，可縮短熱處理時間，降低運行成本。此外，藉由急速冷卻可抑制難酸洗性鏽皮之生成，而提高酸洗性。 As described above, according to the loading jig 1 of the present embodiment, it is possible to improve the airflow in the lower wire coil W1 and the upper wire coil W2 of the multiple loaded layers, and reduce the temperature difference between the inside and outside of the coil during heat treatment. As a result, according to the loading jig 1 of the present embodiment, it is not necessary to slow down the heating rate and the cooling rate in order to reduce the temperature difference, but can realize rapid heating and rapid cooling, shorten the heat treatment time, and reduce the running cost. In addition, rapid cooling can suppress the formation of hard-to-pick-pick scale, thereby improving pickling properties.

此外，於本實施形態之線材捲線用之裝載治具1中，由於第一蓋體8係被設置成可沿第一支柱4之軸向移動，且被載置於下側線材捲線W1之上端，因此，即使因負載崩潰等而造成下側線材捲線W1之上端位置產生變化時，第一蓋體8亦可追隨其變化而維持下側線材捲線W1之上端封閉的狀態。 In addition, in the wire coil loading jig 1 of the present embodiment, since the first cover body 8 is provided so as to be movable along the axial direction of the first support 4, and is placed on the upper end of the lower wire coil W1 Therefore, even if the position of the upper end of the lower wire coil W1 changes due to load collapse or the like, the first cover 8 can follow the change and maintain the closed state of the upper end of the lower wire coil W1.

此外，於本實施形態之線材捲線用之裝載治具1中，在第一支柱4上方且上側線材捲線W2之內側空間W2a內設置第二支柱6，通過被形成在第二支柱6的開口40，氣流被導入至上側線材捲線W2之內側空間W2a。 In addition, in the wire coil loading jig 1 of the present embodiment, the second support 6 is provided above the first support 4 and in the inner space W2a of the upper wire coil W2, and passes through the opening 40 formed in the second support 6 , the airflow is introduced into the inner space W2a of the upper wire coil W2.

如此，第二支柱6可抑制上側線材捲線W2因負載崩潰等所引起之變形，並且藉由被形成在第二支柱6的開口40，可控制朝上側線材捲線W2 之內側空間W2a的氣流之吹出方向。 In this way, the second support 6 can suppress the deformation of the upper wire coil W2 due to load collapse, etc., and the opening 40 formed in the second support 6 can control the upward direction of the wire W2 The blowing direction of the airflow in the inner space W2a.

以上，雖然已對本發明之實施形態進行詳細之說明，但是該等僅為一示例而已。例如，用來使氣流通過形成於第一載置板的第一貫通孔及第二貫通孔之形狀及大小，其並不限於上述實施形態，而可適當變更。此外，設於上側線材捲線之內側空間內的第二支柱之形狀及大小，亦可適當地變更，亦可根據情形，採用不設置第二支柱之構成等，本發明可在不脫離其意旨之範圍內，追加各種變更之形態來實施。 The embodiments of the present invention have been described above in detail, but these are merely examples. For example, the shape and size of the first through hole and the second through hole formed in the first mounting plate are not limited to the above-described embodiment, and can be appropriately changed. In addition, the shape and size of the second struts provided in the inner space of the upper wire coil can be appropriately changed, and the structure without the second struts can be adopted depending on the situation. Within the scope, various modifications are added and implemented.

本申請案係根據2020年9月29日所提出專利申請之日本專利申請案2020-163762，其內容被當參考而取入至本說明書中。 This application is based on Japanese Patent Application No. 2020-163762 filed on September 29, 2020, the content of which is incorporated herein by reference.

1:裝載治具 1: Loading the jig

2:第一載置板 2: The first mounting plate

3:第二載置板 3: Second mounting plate

4:第一支柱 4: The first pillar

6:第二支柱 6: Second Pillar

8:第一蓋體 8: The first cover

9:第二蓋體 9: Second cover

10:第一貫通孔 10: The first through hole

11:第一氣體流道 11: The first gas flow channel

12:第二貫通孔 12: Second through hole

13:第二氣體流道 13: Second gas flow channel

15:支柱支撐部 15: Pillar support

17:外周面 17: Outer peripheral surface

18:細徑部 18: Small diameter part

19:階梯面 19: Step face

21:上端開口 21: upper end opening

26:流道 26: runner

30:彎折部 30: Bending part

32:貫通孔 32: Through hole

34:貫通孔 34: Through hole

38:柱狀構件 38: Columnar components

39:連結板 39: Link Board

40:開口 40: Opening

41:內部空間 41: Interior Space

W1:下側線材捲線 W1: Lower wire coil

W2:上側線材捲線 W2: Upper wire coil

W1a:內側空間 W1a: inner space

W2a:內側空間 W2a: Medial space

Claims (4)

一種線材捲線用之裝載治具，其係將複數個線材捲線保持在於上下方向垂直裝載之狀態，如此的線材捲線用之裝載治具；其具備有：第一載置板，其載置下側線材捲線；第二載置板，其位於上述第一載置板之上方且載置上側線材捲線；第一支柱，其介於該等載置板之間，以支撐上述第二載置板；第一蓋體，其將上述下側線材捲線之上端封閉；第二蓋體，其將上述上側線材捲線之上端封閉；第一氣體流道，其沿板厚方向貫通上述第一載置板，將來自上述第一載置板之下方朝上方之氣流，導入至上述下側線材捲線之內側空間；及第二氣體流道，其被構成為包含沿軸向在上述第一支柱之內部所形成的流道，且將上述氣流導入至上述上側線材捲線之內側空間。 A loading jig for wire coils, which keeps a plurality of wire coils in a state of vertical loading in the up-down direction, such a loading jig for wire coils; it is provided with: a first placing plate, which is placed on the lower side a wire coil; a second placement plate, which is located above the first placement plate and mounts the upper wire coil; a first support column, which is interposed between the placement plates to support the second placement plate; The first cover body closes the upper end of the lower wire coil; the second cover closes the upper end of the upper wire coil; the first gas flow channel penetrates the first mounting plate along the plate thickness direction, Introduce the upward air flow from below the above-mentioned first placing plate into the inner space of the above-mentioned lower wire coil; and a second air flow channel, which is configured to include an axially formed inside the above-mentioned first support column The flow channel, and the above-mentioned air flow is introduced into the inner space of the above-mentioned upper wire coil. 如請求項1之線材捲線用之裝載治具，其中，上述第一蓋體係被設為可沿上述第一支柱之軸向移動，且被載置在上述下側線材捲線之上端。 The loading jig for a wire coil according to claim 1, wherein the first cover system is movable along the axial direction of the first support column, and is placed on the upper end of the lower wire coil. 如請求項1或2之線材捲線用之裝載治具，其中，於上述第一支柱之上方且上述上側線材捲線之內側空間內設置有第二支柱，且通過被形成在上述第二支柱之開口，將上述氣流導入至上述上側線材捲線之內側空間。 The loading jig for wire coils according to claim 1 or 2, wherein a second support is provided above the first support and in the inner space of the upper wire coil, and passes through an opening formed in the second support , and the air flow is introduced into the inner space of the upper wire coil. 一種線材捲線之熱處理方法，其係使用請求項1至3中任一項之線材捲線用之裝載治具的線材捲線之熱處理方法；其特徵在於： 對垂直裝載捲線體供給自上述垂直裝載捲線體之下方朝向上方之氣流，該垂直裝載捲線體係在上述裝載治具之第一載置板及第二載置板分別載置藉由上述第一蓋體及上述第二蓋體將上端封閉的上述下側線材捲線及上述上側線材捲線所成，分別使上述氣流通過上述第一氣體流道而導入至上述下側線材捲線之內側空間，並且通過上述第二氣體流道導入至上述上側線材捲線之內側空間。 A heat treatment method for a wire coil, which is a heat treatment method for a wire coil using a jig for the wire coil according to any one of claims 1 to 3; it is characterized in that: The vertical loading reel is supplied with an air flow from below the vertical loading reel to the upper side, and the vertical loading winding system is respectively placed on the first placing plate and the second placing plate of the loading jig by the first cover. The lower wire coil and the upper wire coil whose upper ends are closed are formed by the body and the second cover body, and the air flow is respectively introduced into the inner space of the lower wire coil through the first gas flow channel, and passes through the above The second gas flow channel is introduced into the inner space of the upper wire coil.
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