KR101077169B1 - Apparatus for homonizing an annealing separating agent - Google Patents

Apparatus for homonizing an annealing separating agent Download PDF

Info

Publication number
KR101077169B1
KR101077169B1 KR1020040110394A KR20040110394A KR101077169B1 KR 101077169 B1 KR101077169 B1 KR 101077169B1 KR 1020040110394 A KR1020040110394 A KR 1020040110394A KR 20040110394 A KR20040110394 A KR 20040110394A KR 101077169 B1 KR101077169 B1 KR 101077169B1
Authority
KR
South Korea
Prior art keywords
hollow tube
annealing separator
steel sheet
nitrogen
homogenizer
Prior art date
Application number
KR1020040110394A
Other languages
Korean (ko)
Other versions
KR20060071912A (en
Inventor
박순복
Original Assignee
주식회사 포스코
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 포스코 filed Critical 주식회사 포스코
Priority to KR1020040110394A priority Critical patent/KR101077169B1/en
Publication of KR20060071912A publication Critical patent/KR20060071912A/en
Application granted granted Critical
Publication of KR101077169B1 publication Critical patent/KR101077169B1/en

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/28—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity for treating continuous lengths of work
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/02—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity of multiple-track type; of multiple-chamber type; Combinations of furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
    • F27B9/24—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor
    • F27B9/2407—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor the conveyor being constituted by rollers (roller hearth furnace)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/02—Skids or tracks for heavy objects
    • F27D3/026—Skids or tracks for heavy objects transport or conveyor rolls for furnaces; roller rails

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)
  • Chemical Treatment Of Metals (AREA)

Abstract

본 발명은 소둔분리제 균질화 장치를 제공하기 위한 것으로, 소둔분리제를 도포시킨 후 건조로내로 이동하여 건조시키는 방향성 전기강판의 제조장치에 있어서, 외주면에 일렬로 다수개의 질소분출구가 천공된 중앙 중공관과, 상기 중앙 중공관의 양측에는 상기 중앙 중공관보다 직경이 작은 제 1 중공관과, 제 2 중공관으로 구성된 부상노즐과; 상기 제 1 중공관에 체결되어 일정압의 질소를 주입하는 질소공급관과; 상기 제 2 중공관의 외주면에 고정 장착된 중공관측 기어를 매개로 연결 설치된 회전구동부와; 상기 중앙 중공관의 전체 내하부면에 장착되고, 일단이 상기 제 2 중공관 내부로 관통 돌출되어서 지지대에 견고히 고정된 고정막으로 구성됨으로써 균일한 소둔분리제 도포를 통해 그라스 피막특성을 확보할 수 있을 뿐만 아니라 최종강판의 외관품질도 향상시킬 수 있는 소둔분리제 균질화장치를 제공하므로써, 강판조직의 노출과 피막박리를 예방할 수 있고, 국부적인 산화에 의해 강판의 양 에지 부위에서의 소둔산화를방지할 수 있을 뿐만 아니라 줄무늬 발생을 방지할 수 있는 효과가 있다.The present invention is to provide an annealing separator homogenizer, the apparatus for producing a grain-oriented electrical steel sheet to apply the annealing separator after moving into a drying furnace, the center hollow tube in which a plurality of nitrogen outlet holes are perforated in a row on the outer peripheral surface And, on both sides of the central hollow tube and the floating nozzle consisting of a first hollow tube and a second hollow tube having a diameter smaller than the central hollow tube; A nitrogen supply pipe fastened to the first hollow pipe to inject nitrogen at a constant pressure; A rotary driving unit connected to the outer peripheral surface of the second hollow tube by means of a hollow tube gear; It is mounted on the entire inner bottom surface of the central hollow tube, one end is protruded through the inside of the second hollow tube is composed of a fixed membrane firmly fixed to the support to ensure the glass film characteristics through uniform application of the annealing separator In addition, by providing an annealing separator homogenizer that can improve the appearance quality of the final steel sheet, it is possible to prevent the exposure of the steel sheet structure and peeling of the film, and to prevent annealing oxidation at both edges of the steel sheet by local oxidation. Not only can it do, but there is an effect that can prevent the generation of streaks.

Description

소둔분리제 균질화 장치{Apparatus for homonizing an annealing separating agent} Apparatus for homonizing an annealing separating agent

도 1은 종래의 MgO코팅 후 건조로 입구측 긁힌흠 발생을 보인 사시도.1 is a perspective view showing the occurrence of scratches on the inlet side by drying after conventional MgO coating.

도 2는 본 발명의 일실시례에 의한 사시도(a)와 단면도(b).2 is a perspective view (a) and a cross-sectional view (b) according to an embodiment of the present invention.

도 3은 본 발명의 일실실례에 의한 부상노즐 부분의 확대 사시도(a) 단면도(b).Figure 3 is an enlarged perspective view (a) cross-sectional view (b) of the floating nozzle portion according to one embodiment of the present invention.

* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

1 :탈탄소둔로 2 :긁힌흠 3 : 건조로 1: decarbonization furnace 2: scratches 3: drying furnace

4 : 하단부 줄무늬 5 : 버너 6 : 스트립4: bottom stripe 5: burner 6: strip

7 : 링거롤 8 : 롤 코터 11 : 지지대 7 ringer roll 8 roll coater 11 support

12 : 베어링블럭 18 : 질소공급관 19 : 부상노즐 12: bearing block 18: nitrogen supply pipe 19: floating nozzle

19a : 제 1 중공관 19b : 중앙 중공관 19c : 제 2 중공관 19a: 1st hollow tube 19b: center hollow tube 19c: 2nd hollow tube

37 : 볼 38 : 질소분출구 39 : 로터리죠인트 37 ball 38 nitrogen outlet 39 rotary joint

41 : 고정막 50 : 회전구동부 54 : 베어링 41: fixed membrane 50: rotary drive part 54: bearing

55 : 모터측 기어 56 : 중공관측 기어 57 : 고정축 55: motor side gear 56: hollow observation gear 57: fixed shaft

58 : 구동모터58: drive motor

본 발명은 소둔분리제 균질화 장치에 관한 것으로, 특히 변압기, 발전기 및 기타 전자기기 등의 철심재료로 사용되는 방향성 전기강판을 제조하는 과정에 있어서 방향성 전기강판의 제조시 탈탄소둔 후에 행하는 소둔분리제 균질화장치에 관한 것이다.The present invention relates to an annealing separator homogenizer, and more particularly to annealing separator homogenization performed after decarbonization annealing in the manufacture of a grain-oriented electrical steel sheet in the process of manufacturing a grain-oriented electrical steel sheet used as iron core materials such as transformers, generators and other electronic devices. Relates to a device.

방향성 전기강판은 결정립의 방위가 (110)[001]방향으로 정렬된 집합조직을 가지고 있는 것으로서, 압연방향으로 극히 우수한 자기적 특성을 가지고 있어서 변압기, 발전기 및 기타 전자기기 등의 철심재료로 사용되고 있다.A grain-oriented electrical steel sheet has an aggregate structure in which the orientation of grains is aligned in the direction of (110) [001]. It has extremely excellent magnetic properties in the rolling direction and is used as a core material for transformers, generators, and other electronic devices. .

일반적으로, 방향성 전기강판은 소정량의 규소와 입성장억제제로 Mn과 Al을 함유하는 강을 용해하여 슬라브로 만든 후, 재가열 및 열간압연, 예비소둔, 냉간압연, 탈탄소둔, 융착방지제 도포 및 최종 마무리 고온소둔등의 공정을 거쳐서 최종제품으로 완성된다.In general, a grain-oriented electrical steel sheet is made of slab by dissolving a steel containing Mn and Al with a predetermined amount of silicon and grain growth inhibitor, and then reheating and hot rolling, preannealing, cold rolling, decarbon annealing, application of fusion inhibitor, and final Finishing The product is finished through high temperature annealing.

한편, 전기강판을 사용하여 변압기용 철심코아등을 제작하는 공정은 통상 스리팅작업, 타발작업, 열처리 및 조립작업 등으로 구성되어 있으며, 이중 타발작업은 제작과정 중에서 생산성향상 및 원가절감측면에서의 가장 중요한 공정이 된다.On the other hand, the process of manufacturing iron core for transformers using electrical steel is usually composed of slitting work, punching work, heat treatment and assembling work, and double punching work in terms of productivity improvement and cost reduction during manufacturing. It is the most important process.

방향성 전기강판을 사용하여 철심코아등의 제품을 제작하기 위하여 행하는 타발작업에 있어서, 타발성을 결정하는 인자는 소재측면에서 보면, 소재자체의 경도, 1차 절연피막층인 그라스 피막층[Glass Film; 주성분은 Forsterite (Mg2SiO4) 임] 및 2차 절연피막층인 장력코팅층의 세가지에 의해 대부분 결정된다.In the punching work performed to manufacture products such as iron core core using oriented electrical steel sheet, the factor for determining punchability is, in terms of the material, a hardness of the material itself, a glass film layer which is a primary insulating film layer [Glass Film; Its main component is mostly determined by three kinds: forsterite (Mg 2 SiO 4 )] and tension coating layer, which is a secondary insulating coating layer.

도 1은 종래의 MGO코팅 후 건조로 입구측 긁힌흠 발생을 보인 사시도이다.1 is a perspective view showing the occurrence of scratches on the inlet side by drying after the conventional MGO coating.

이에 도시된 바와 같이, 그라스 피막은 1차 절연피막층으로서 강판(Steel)의 탈탄소둔로(1)에서 탈탄소둔을 거친 후 고온소둔 전에 MgO를 주성분으로 하는 소둔분리제를 슬러리(slurry)상태로 하여 롤 코터(8)를 사용하여 강판표면에 코팅하고, 건조로(3)에서 건조하고, 권취기에서 코일로 권취한 다음, 2차재결정 형성을 위하여 권취된 코일을 고온소둔할 때 MgO계 소둔 분리제(융착 방지제)의 MgO와 소재표면의 SiO2계 산화물과의 반응에 의해 소재표면에 형성되는 것이다.As shown in the drawing, the glass coating is a primary insulating coating layer which undergoes decarbonization annealing in a decarbonization annealing furnace 1 of steel sheet, and then, as a slurry, an annealing separator mainly composed of MgO prior to high temperature annealing. Coating on the surface of the steel sheet using a roll coater (8), drying in a drying furnace (3), winding with a coil in a winder, and then separating the MgO-based annealing during high temperature annealing of the wound coil for secondary recrystallization. It is formed on the surface of the material by the reaction between the MgO agent (the anti-fusion agent) and the SiO 2 -based oxide on the surface of the material.

소둔분리제 슬러리를 강판표면에 코팅하는 롤 코터(8)는 통상 도 1에 나타난 바와 같이, 상하로 서로 맞서 위치되고, 각각의 표면에 강판의 진행방향에 평행한 그루브가 형성되어 있는 한쌍의 롤(Roll)을 포함하고 있다.The roll coater 8 which coats the annealing separator slurry on the surface of the steel sheet is usually a pair of rolls which are located up and down against each other as shown in FIG. 1, and grooves are formed on each surface in parallel with the traveling direction of the steel sheet. It contains (Roll).

도 1에 도시된 바와 같이 , 강판(S)의 탈탄소둔 (1)공정 후 고온소둔 전에 MgO를 주성분으로 하는 소둔분리제를 슬러리(slurry)상태로 하여 롤 코터(8)를 사용하여 강판표면에 코팅하고, 건조로(3)에서 건조목적으로스트립(6) 진입시에 장력이 적절하지 못하여 상기스트립(6)은 처지게 되고, 이때 스트립(6)하단에 다량의 긁힌흠이 발생되는 제품품질에 치명적인 결함을 유발하게 된다.As shown in Figure 1, after the decarbonization annealing (1) process of the steel sheet (S) before the high temperature annealing, the annealing separator mainly composed of MgO as a slurry (slurry) to the surface of the steel sheet using a roll coater (8) The coating is coated, and when the strip 6 enters the strip 6 for drying purposes in the drying furnace 3, the strip 6 sags, and at this time, a large amount of scratches are generated at the bottom of the strip 6. It will cause a fatal defect.

특히 소둔분리제를 슬러리(slurry)상태로 하여 롤 코터(8)를 사용하여 강판표면에 코팅 후 건조시 스트립(6)의 상단부에 도포된 소둔분리제는 자체 표면장력에 의해 균질화되게 도포되나 하단부의 경우 소둔분리제간 표면장력 부족으로 완전 한 균질화 코팅이 불가능한 문제점이 있었다.In particular, the annealing separator is applied to the upper surface of the strip 6 when the sheet is coated with a roll coater 8 using a roll coater 8 in a slurry state, and then the annealing separator is homogenized by its own surface tension. In the case of a complete homogenization coating was not possible due to the lack of surface tension between the annealing separator.

이에 본 발명은 상기와 같은 종래의 제반 문제점을 해결하기 위해 제안된 것으로, 본 발명의 목적은 소둔분리제를 균질하게 도포시켜 우수한 그라스 피막특성을 확보할 수 있을 뿐만 아니라 최종 강판의 외관품질도 향상시킬 수 있는 소둔분리제 균질화장치를 제공하는데 있다.Therefore, the present invention has been proposed to solve the conventional problems as described above, the object of the present invention is to uniformly apply the annealing separator to ensure excellent glass coating properties as well as improve the appearance quality of the final steel sheet It is to provide an annealing separator homogenizer that can be.

상기와 같은 목적을 달성하기 위하여 본 발명의 일실시예에 의한 소둔분리제 균질화 장치는, 소둔분리제를 도포시킨 후 건조로내로 이동하여 건조시키는 방향성 전기강판의 제조장치에 있어서, 외주면에 일렬로 다수개의 질소분출구가 천공된 중앙 중공관과, 상기 중앙 중공관의 양측에는 상기 중앙 중공관보다 직경이 작은 제 1 중공관과, 제 2 중공관으로 구성된 부상노즐과; 상기 제 1 중공관에 체결되어 일정압의 질소를 주입하는 질소공급관과; 상기 제 2 중공관의 외주면에 고정 장착된 중공관측 기어를 매개로 연결 설치된 회전구동부와; 상기 중앙 중공관의 전체 내하부면에 장착되고, 일단이 상기 제 2 중공관 내부로 관통 돌출되어서 지지대에 견고히 고정된 고정막으로 구성된 것을 그 기술적 구성상의 특징으로 한다.In order to achieve the above object, the annealing separator homogenizer according to one embodiment of the present invention is a device for manufacturing a grain-oriented electrical steel sheet which is dried by applying an annealing separator and then moving into a drying furnace, in a row on an outer circumferential surface thereof. A floating nozzle consisting of a central hollow tube having two nitrogen ejection openings, a first hollow tube having a diameter smaller than that of the central hollow tube, and a second hollow tube on both sides of the central hollow tube; A nitrogen supply pipe fastened to the first hollow pipe to inject nitrogen at a constant pressure; A rotary driving unit connected to the outer peripheral surface of the second hollow tube by means of a hollow tube gear; It is characterized in that the technical configuration that is mounted on the entire inner lower surface of the central hollow tube, one end is formed through a fixed membrane fixedly fixed to the support by projecting through the inside of the second hollow tube.

이하, 상기와 같은 본 발명, 소둔분리제 균질화 장치의 기술적 사상에 따른 일실시례를 도면을 참조하여 설명하면 다음과 같다.Hereinafter, an embodiment according to the present invention as described above, the technical spirit of the annealing separator homogenizer is described with reference to the drawings.

도 3은 본 발명의 일실실례에 의한 부상노즐 부분의 확대 사시도(a) 단면도(b)이다. Figure 3 is an enlarged perspective view (a) cross-sectional view (b) of the floating nozzle portion according to one embodiment of the present invention.                     

이에 도시된 바와 같이, 소둔분리제를 도포시킨 후 건조로내로 이동하여 건조시키는 방향성 전기강판의 제조장치에 있어서, 외주면에 일렬로 다수개의 질소분출구가 천공된 중앙 중공관(19b)과, 상기 중앙 중공관의 양측에는 상기 중앙 중공관보다 직경이 작은 제 1 중공관(19a)과, 제 2 중공관(19c)으로 구성된 부상노즐(19)과; 상기 제 1 중공관(19a)에 체결되어 일정압의 질소를 주입하는 질소공급관(18)과; 상기 제 2 중공관(19c)의 외주면에 고정 장착된 중공관측 기어(56)를 매개로 연결 설치된 회전구동부(50)와; 상기 중앙 중공관(19b)의 전체 내하부면에 장착되고, 일단이 상기 제 2 중공관(19c) 내부로 관통 돌출되어서 지지대(11)에 견고히 고정된 고정막(41)으로 구성된다.As shown in the drawing, in the apparatus for manufacturing a grain-oriented electrical steel sheet coated with an annealing separator and then moved into a drying furnace, a central hollow tube 19b having a plurality of nitrogen ejection openings in a row on an outer circumferential surface thereof, and the central hollow Floating nozzles (19) comprising a first hollow tube (19a) and a second hollow tube (19c) having a diameter smaller than the central hollow tube on both sides of the tube; A nitrogen supply pipe 18 fastened to the first hollow pipe 19a to inject nitrogen at a constant pressure; A rotation driving unit 50 connected to the outer peripheral surface of the second hollow tube 19c by means of a hollow tube gear 56 fixedly mounted thereon; It is mounted on the entire inner bottom surface of the central hollow tube (19b), one end is composed of a fixed membrane 41 is protruded through the second hollow tube (19c) to be firmly fixed to the support (11).

상기 제 1 중공관(19a)과 상기 질소공급관(18)의 체결은 로터리죠인트(39)에 의해 체결되어 구성될 수 있다.The first hollow tube 19a and the nitrogen supply pipe 18 may be fastened by a rotary joint 39.

상기 회전구동부(50)는 상기 제 2 중공관(19b)의 외주면에 고정 장착된 중공관측 기어(56)의 상측에 맞물려 있는 모터측 기어(55)와; 상기 모터측 기어(55)에 회전축으로 연결된 구동모터(10)를 포함하여 구성될 수 있다.The rotary drive unit 50 includes a motor side gear 55 engaged with an upper side of the hollow tube gear 56 fixedly mounted to an outer circumferential surface of the second hollow tube 19b; It may be configured to include a drive motor 10 connected to the motor side gear 55 by a rotating shaft.

그리고 상기 고정막(41)과 부상노즐의 내주면 사이에는 다수개의 볼(37)이 구비되어 구성될 수 있다.A plurality of balls 37 may be provided between the fixed membrane 41 and the inner circumferential surface of the floating nozzle.

이와 같이 구성된 본 발명에 의한 소둔분리제 균질화 장치의 동작을 첨부한 도면에 의거 상세히 설명하면 다음과 같다.Referring to the accompanying drawings the operation of the annealing separator homogenizer according to the present invention configured as described above in detail as follows.

질소공급관(18)을 통해 공급되는 일정한 압의 질소는 상기 부상노즐(19)의 제 1 중공관(19a)으로 공급되어지고, 상기 공급된 일정압의 질소는 상기 중앙 중 공관(19b)의 외주면 상단에 위치한 다수개의 개방된 질소분출구(38)를 통해 분사된다. 상기의 과정으로 분사되는 질소는 건조로(3)방향으로 진행되는스트립(6)의 표면에 도포된 슬러리 상태의 소둔분리제를 균일하게 퍼지게 하여 균일한 도포면을 확보하게 된다.The nitrogen of a constant pressure supplied through the nitrogen supply pipe 18 is supplied to the first hollow pipe 19a of the floating nozzle 19, and the supplied nitrogen of the constant pressure is the outer circumferential surface of the central hollow pipe 19b. It is injected through a plurality of open nitrogen ejection openings 38 located at the top. Nitrogen injected in the above process to uniformly spread the slurry annealing separator applied to the surface of the strip 6 in the drying furnace 3 direction to ensure a uniform coating surface.

상기 구동모터(58)를 회전시키면 모터측 기어(55)는 맞물린 중공관측 기어(56)를 회전시키므로 이로인해 중공관 형태의 부상노즐(19)전체가 회전하게 되고, 이때 질소분출구(38)가 하향시 상기 중앙 중공관 내하부면에 위치한 고정막(41)에 의해 하단으로 분출되는 질소를 차단시킨다. 이로인해 바닥부에 낙하되어 쌓여있는 MGO파우더가 비산되어 스트립(6)표면에 재부착되는 제2의 결함 요인을 완전히 배제시키게 되는 것이다.When the drive motor 58 is rotated, the motor side gear 55 rotates the interlocking hollow tube gear 56 so that the entire floating nozzle 19 of the hollow tube shape rotates, and the nitrogen jet 38 is rotated. In the downward direction, nitrogen is ejected to the lower end by the fixed membrane 41 located on the inner bottom surface of the central hollow tube. This scatters the MGO powders that are dropped on the bottom and are completely scattered, thereby completely eliminating the second defect factor that is reattached to the surface of the strip 6.

상기 고정막(41)은 고정축(57)이 지지대(11)에 견고히 고정되고, 상기 고정막과 부상노즐의 내주면 사이에는 다수개의 볼이 삽입되어 원활한 구동이 가능하게 된다.In the fixed membrane 41, the fixed shaft 57 is firmly fixed to the support 11, and a plurality of balls are inserted between the fixed membrane and the inner circumferential surface of the floating nozzle to enable smooth driving.

상기 질소의 일정압은 통상적인 방향성 전기강판의 두께 0.25t~0.27t일 경우 압력을 0.5kg/㎠ ~ 1.7kg/㎠ 로 설정한 이유는 질소압이 0.5kg/㎠ 이하로 유지될 경우 라인 스피드에 변화에 따른 스트립 장력 변화시 완전한 부상이 아닌 다소 압력 저하에 따른 MGO코팅부가 부상노즐 상면에 스치는 관계로 적절하지 못하며, 반면 1.7kg/㎠이상일 경우 스트립이 상단으로 과다하게 부상되어 건조로(3)입구측 게이트 상단부와 스치게 되어 이또한 MGO코팅층이 손상되어 바람직하지 못하다.The constant pressure of the nitrogen is set to 0.5kg / ㎠ ~ 1.7kg / ㎠ when the thickness of 0.25t ~ 0.27t of conventional oriented electrical steel sheet is the reason why the line speed when the nitrogen pressure is maintained below 0.5kg / ㎠ When the strip tension is changed due to the change of pressure, the MGO coating is not appropriate due to the pressure drop on the surface of the floating nozzle. The MGO coating layer is damaged due to rubbing with the gate top end of the inlet side, which is undesirable.

따라서, 본 발명에서의 질소공급 적정압을 0.5kg/㎠ ~ 1.7kg/㎠로 설정하는 것이 바람직하다.Therefore, it is preferable to set the nitrogen supply proper pressure in this invention to 0.5 kg / cm <2> -1.7 kg / cm <2>.

이상에서 본 발명의 바람직한 실시예를 설명하였으나, 본 발명은 다양한 변화와 변경 및 균등물을 사용할 수 있다. 본 발명은 상기 실시예를 적절히 변형하여 동일하게 응용할 수 있음이 명확하다. 따라서 상기 기재 내용은 하기 특허청구범위의 한계에 의해 정해지는 본 발명의 범위를 한정하는 것이 아니다.Although preferred embodiments of the present invention have been described above, the present invention may use various changes, modifications, and equivalents. It is clear that the present invention can be applied in the same manner by appropriately modifying the above embodiments. Accordingly, the above description does not limit the scope of the invention as defined by the limitations of the following claims.

이상에서 살펴본 바와 같이, 본 발명에 의한 소둔분리제 균질화 장치는 균일한 소둔분리제 도포를 통해 그라스 피막특성을 확보할 수 있을 뿐만 아니라 최종강판의 외관품질도 향상시킬 수 있는 소둔분리제 균질화장치를 제공하므로써, 강판조직의 노출과 피막박리를 예방할 수 있고, 국부적인 산화에 의해 강판의 양 에지 부위에서의 소둔산화를방지할 수 있을 뿐만 아니라 줄무늬 발생을 방지할 수 있는 효과가 있다.As described above, the annealing separator homogenizer according to the present invention provides an annealing separator homogenizer that can not only secure the glass coating properties through uniform application of the annealing separator but also improve the appearance quality of the final steel sheet. By providing, it is possible to prevent the exposure of the steel sheet structure and peeling of the film, it is possible to prevent the annealing oxidation at both edge portions of the steel sheet by the local oxidation as well as to prevent the occurrence of streaks.

Claims (4)

소둔분리제를 도포시킨 후 건조로내로 이동하여 건조시키는 방향성 전기강판의 제조장치에 있어서,In the apparatus for producing a grain-oriented electrical steel sheet to which the annealing separator is applied and then moved into a drying furnace and dried, 외주면에 일렬로 다수개의 질소분출구가 천공된 중앙 중공관과, 상기 중앙 중공관의 양측에는 상기 중앙 중공관보다 직경이 작은 제 1 중공관과, 제 2 중공관으로 구성된 부상노즐과;A central hollow tube having a plurality of nitrogen ejection openings formed in a line on an outer circumferential surface thereof, and floating nozzles each having a diameter smaller than that of the central hollow tube and a second hollow tube on both sides of the central hollow tube; 상기 제 1 중공관에 체결되어 일정압의 질소를 주입하는 질소공급관과;A nitrogen supply pipe fastened to the first hollow pipe to inject nitrogen at a constant pressure; 상기 제 2 중공관의 외주면에 고정 장착된 중공관측 기어를 매개로 연결 설치된 회전구동부와; A rotary driving unit connected to the outer peripheral surface of the second hollow tube by means of a hollow tube gear; 상기 중앙 중공관의 전체 내하부면에 장착되고, 일단이 상기 제 2 중공관 내부로 관통 돌출되어서 지지대에 견고히 고정된 고정막으로 구성된 것을 특징으로 하는 소둔분리제 균질화 장치.Annealing separator homogenizer, characterized in that it is mounted on the entire inner bottom surface of the central hollow tube, one end of which is projected through the inside of the second hollow tube and fixedly fixed to the support. 제 1 항에 있어서, 상기 제 1 중공관과 상기 질소공급관의 체결은The method of claim 1, wherein the first hollow tube and the nitrogen supply tube is fastened 로터리죠인트에 의해 체결되어진 것을 특징으로 하는 소둔분리제 균질화 장치.Annealing separator homogenizer, characterized in that fastened by a rotary joint. 제 1 항에 있어서, 상기 회전구동부는 According to claim 1, wherein the rotary drive unit 상기 제 2 중공관의 외주면에 고정 장착된 중공관측 기어의 상측에 맞물려 있는 모터측 기어와;A motor side gear meshed with an upper side of the hollow tube side gear fixedly mounted to an outer circumferential surface of the second hollow tube; 상기 모터측 기어에 회전축으로 연결된 구동모터로 구성됨을 특징으로 하는 소둔분리제 균질화 장치.Annealing separator homogenizer, characterized in that consisting of a drive motor connected to the rotational shaft to the motor side gear. 제 1 항 내지 제 3 항 중 어느 한 항에 있어서, 상기 고정막과 부상노즐의 내주면 사이에는 다수개의 볼이 구비된 것을 특징으로 하는 소둔분리제 균질화 장치.The annealing separator homogenizing apparatus according to any one of claims 1 to 3, wherein a plurality of balls are provided between the fixed membrane and the inner circumferential surface of the floating nozzle.
KR1020040110394A 2004-12-22 2004-12-22 Apparatus for homonizing an annealing separating agent KR101077169B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020040110394A KR101077169B1 (en) 2004-12-22 2004-12-22 Apparatus for homonizing an annealing separating agent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020040110394A KR101077169B1 (en) 2004-12-22 2004-12-22 Apparatus for homonizing an annealing separating agent

Publications (2)

Publication Number Publication Date
KR20060071912A KR20060071912A (en) 2006-06-27
KR101077169B1 true KR101077169B1 (en) 2011-10-27

Family

ID=37165229

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020040110394A KR101077169B1 (en) 2004-12-22 2004-12-22 Apparatus for homonizing an annealing separating agent

Country Status (1)

Country Link
KR (1) KR101077169B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100770344B1 (en) * 2006-12-26 2007-10-25 주식회사 포스코 Uniformity device of insulation film layer

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62235429A (en) 1986-04-04 1987-10-15 Daido Steel Co Ltd Centering apparatus for metal strip material in floating type heat treating furnace
JPH1121627A (en) 1997-06-30 1999-01-26 Nippon Steel Corp Nitrificating treatment of grain oriented electrical steel sheet having small deviation in longitudinal and width directions and apparatus therefor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62235429A (en) 1986-04-04 1987-10-15 Daido Steel Co Ltd Centering apparatus for metal strip material in floating type heat treating furnace
JPH1121627A (en) 1997-06-30 1999-01-26 Nippon Steel Corp Nitrificating treatment of grain oriented electrical steel sheet having small deviation in longitudinal and width directions and apparatus therefor

Also Published As

Publication number Publication date
KR20060071912A (en) 2006-06-27

Similar Documents

Publication Publication Date Title
AU616848B2 (en) Method and apparatus of continuously casting a metal sheet
CN105798061B (en) Wide specular light black plate cold rolling process in one kind 0.05~0.1mm ultra-thin accurates
WO2013168777A1 (en) Slurry coating device and slurry coating method
KR101077169B1 (en) Apparatus for homonizing an annealing separating agent
TW201130578A (en) Coiling device, and method for operating a coiling device
KR101677443B1 (en) Apparatus and method for insulation coating of electrical steel sheet and electrical steel sheet manufactured using the same
JP6075106B2 (en) Slurry coating apparatus and slurry coating method
KR100502239B1 (en) Roll Coater for Coating Annealing Seperator and Method for Manufacturing Oriented Electrical Steel Sheet Having Process for Coating the Annealing Seperator with the Roll Coater
JPH0318416A (en) Run out table on outlet side of hot finishing mill
KR20090011118U (en) Roll apparatus for coil box
JPH0366458A (en) Method for continuously casting cast strip
JPH03124657A (en) Aluminum roller and its manufacture method
JP5967055B2 (en) Method for cooling hot-rolled steel sheet for hot-dip galvanized steel sheet
JPH0824947A (en) Coiling device
CN112387519B (en) Coating roller, coating machine and method for reducing double lines on surface of oriented silicon steel
JPS62259777A (en) Grinding belt for metal plate surface
JPS61209755A (en) Method for polishing cooling roll for production of quickly cooled thin metallic strip
JP6717274B2 (en) Defective part removal method and defective part removal device for steel plate coil outer winding part
US20230182168A1 (en) Coated steel sheet and home appliance using the same
JPH07110975B2 (en) Iron loss reduction processing line for grain-oriented electrical steel
KR20020016265A (en) Method for Forming Dimple on Surface of Casting Roll of Twin -Roll Strip Caster
JPS6249332B2 (en)
KR200167199Y1 (en) Prevention device for oxidizing surface creation of thin plate
JPH10309637A (en) Manufacture of cutter or blade using high speed tool steel
JP2003320290A (en) Uniform coating method for metal sheet with liquid or slurry and coating apparatus

Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20141017

Year of fee payment: 4

FPAY Annual fee payment

Payment date: 20151020

Year of fee payment: 5

FPAY Annual fee payment

Payment date: 20161019

Year of fee payment: 6

FPAY Annual fee payment

Payment date: 20171019

Year of fee payment: 7

FPAY Annual fee payment

Payment date: 20180821

Year of fee payment: 8