TW201532694A - Control method and control device for sizing press device - Google Patents
Control method and control device for sizing press device Download PDFInfo
- Publication number
- TW201532694A TW201532694A TW103136115A TW103136115A TW201532694A TW 201532694 A TW201532694 A TW 201532694A TW 103136115 A TW103136115 A TW 103136115A TW 103136115 A TW103136115 A TW 103136115A TW 201532694 A TW201532694 A TW 201532694A
- Authority
- TW
- Taiwan
- Prior art keywords
- mold
- flat steel
- molds
- pressure device
- constant
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 39
- 238000004513 sizing Methods 0.000 title abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 68
- 239000010959 steel Substances 0.000 claims description 68
- 238000007688 edging Methods 0.000 claims description 14
- 210000002257 embryonic structure Anatomy 0.000 claims description 10
- 210000001161 mammalian embryo Anatomy 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 abstract description 21
- 238000001816 cooling Methods 0.000 description 11
- 230000008646 thermal stress Effects 0.000 description 9
- 238000005098 hot rolling Methods 0.000 description 8
- 238000004227 thermal cracking Methods 0.000 description 8
- 230000007246 mechanism Effects 0.000 description 7
- 238000005520 cutting process Methods 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000002411 adverse Effects 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 3
- 238000007730 finishing process Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000009749 continuous casting Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009957 hemming Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/02—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
- B21J1/04—Shaping in the rough solely by forging or pressing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
- B21J1/06—Heating or cooling methods or arrangements specially adapted for performing forging or pressing operations
Abstract
Description
本發明係關於一種對熱扁鋼胚實施軋邊(edging)加工之定寬壓力(sizing press)裝置之控制方法及控制裝置。 The present invention relates to a control method and a control device for a sizing press device for performing edging processing on a hot flat steel blank.
近年來，於許多之熱軋生產線中導入有定寬壓力裝置，該定寬壓力裝置係使用與扁鋼胚之板寬方向端部對峙之一對模具，對自加熱爐抽出之扁鋼胚實施軋邊加工。藉由導入定寬壓力裝置，擴大在熱軋生產線上之扁鋼胚之寬度變更能力，從而可達成連續鑄造生產線上之扁鋼胚鑄入寬度之集約化，提高連續鑄造生產線之生產性。 In recent years, a fixed-width pressure device has been introduced into many hot-rolling production lines, and the fixed-width pressure device uses a pair of molds facing the width direction end of the flat steel blank to perform a flat steel blank extracted from the heating furnace. Rolling edge processing. By introducing a constant-width pressure device, the width change capability of the flat steel blank in the hot rolling line can be expanded, thereby achieving the intensification of the casting width of the flat steel blank in the continuous casting production line, and improving the productivity of the continuous casting production line.
於利用定寬壓力裝置之扁鋼胚之軋邊加工中，若模具與扁鋼胚之接觸時間變長，因模具之溫度上昇，會對模具及其周邊設備產生不良影響。由於此種背景，提出有一種技術方案(參照專利文獻1、2)，其於上下複數段配置可朝與扁鋼胚之搬送方向正交的方向位移之一對模具，且於上段之模具與下段之模具之間每隔1根扁鋼胚對進行軋邊加工之模具進行切換，並將不進行軋邊加工之模具冷卻。根據此種技術，可抑制因模具之溫度上昇而對模具及其周邊設備產生不良影響之情況。 In the roughing process of the flat steel blank using the constant-width pressure device, if the contact time between the mold and the flat steel is long, the temperature of the mold rises, which may adversely affect the mold and its peripheral equipment. Due to such a background, there is proposed a technical solution (refer to Patent Documents 1 and 2), which is configured to displace one of the molds in a direction orthogonal to the direction in which the flat steel is conveyed in the upper and lower stages, and the mold in the upper stage The mold for the edging process is switched every other flat steel slab between the lower molds, and the mold which is not subjected to the edging process is cooled. According to this technique, it is possible to suppress the adverse effect on the mold and its peripheral equipment due to the temperature rise of the mold.
專利文獻1：日本專利特開昭62-282738號公報 Patent Document 1: Japanese Patent Laid-Open No. 62-282738
專利文獻2：日本專利特開昭63-5837號公報 Patent Document 2: Japanese Patent Laid-Open No. 63-5837
本發明之發明者經反複銳意研究之結果，獲得了以下之發現，即，於將上下複數段之模具對每根扁鋼胚交替利用而進行扁鋼胚之軋邊加工之情況下，因不斷重複藉由扁鋼胚之接觸而使溫度上昇及藉由冷卻處理而使溫度降低之動作，會因熱應力而於模具上產生熱龜裂(heat crack)。於模具上產生熱龜裂之情況下，因模具之欠缺，有可能會產生扁鋼胚之品質不良。因此，期能提供一種可抑制因熱應力而於模具上產生熱龜裂之技術。 As a result of repeated and intensive research, the inventors of the present invention have obtained the following findings, that is, in the case where the upper and lower plurality of sections are alternately used for each flat steel embryo to perform the flat edge processing of the flat steel blank, Repeating the action of raising the temperature by the contact of the flat steel blank and lowering the temperature by the cooling treatment causes a heat crack on the mold due to the thermal stress. In the case of thermal cracking on the mold, the quality of the flat steel embryo may be poor due to the lack of the mold. Therefore, it is possible to provide a technique for suppressing thermal cracking on the mold due to thermal stress.
本發明係為了解決如上述之課題而完成者，其目的在於提供一種定寬壓力裝置之控制方法及控制裝置，可抑制因熱應力而於對扁鋼胚實施軋邊加工時所使用之模具上產生熱龜裂之情況。 The present invention has been made to solve the problems as described above, and an object of the invention is to provide a control method and a control device for a constant-width pressure device, which can suppress a mold used for performing a roughing process on a flat steel blank due to thermal stress. The case of hot cracking.
為了解決上述課題而達成目的，本發明之定寬壓力裝置之控制方法，係具備有配設在上下複數段之一對的模具，該等一對的模具係可位移在與扁鋼胚之搬送方向呈正交之方向，且在每隔既定之扁鋼胚的根數，對在上段之模具與下段之模具之間實施扁鋼胚之軋邊加工的模具進行切換，並且對不進行軋邊加工之模具進行冷卻之定寬壓力裝置之控制方法，其特徵在於包含有以下之步驟：將以每單位時間施加於模具之熱循環的頻率成為既定值以上之一個模具且連續地進行軋邊加工之扁鋼胚的根數作為下限值，而決定上述既定之扁鋼胚的根數。 In order to achieve the object of solving the above problems, the method for controlling a constant-width pressure device according to the present invention includes a mold disposed in one of a plurality of upper and lower stages, and the pair of molds are displaceable in the transfer to the flat steel embryo. The direction is orthogonal, and the mold for the flattening of the flat steel is switched between the mold of the upper section and the mold of the lower section at every predetermined number of flat steel blanks, and the edge is not rolled. A method for controlling a constant-width pressure device for cooling a processed mold, comprising the steps of: forming a die having a frequency of a thermal cycle applied to the die per unit time to a predetermined value or more and continuously performing the edge-cutting process The number of the flat steel embryos is taken as the lower limit value, and the number of the predetermined flat steel embryos is determined.
本發明之定寬壓力裝置之控制方法，係於上述發明中，其特徵在於包含有以下之步驟：根據由定寬壓力裝置之設備限制所決定之上述既定的扁鋼胚的根數之上限值，而決定上述既定之扁鋼胚的根數。 The method for controlling a constant-width pressure device according to the present invention is characterized in that it comprises the step of: capping the number of the predetermined flat steel embryos determined according to equipment limitations of the constant-width pressure device The value determines the number of roots of the above-mentioned predetermined flat steel.
為了解決上述課題而達成目的，本發明之定寬壓力裝置之控制裝置，係具備有配設在上下複數段之一對的模具，該等一對的模具係可位移在與扁鋼胚之搬送方向呈正交之方向，且在每隔既定之扁鋼胚的根數，對在上段之模具與下段之模具之間實施扁鋼胚之軋邊加工的模具進行切換，並且對不進行軋邊加工之模具進行冷卻之定寬壓力裝置之控制裝置，其特徵在於具備有以下之手段：將以每單位時間施加於模具之熱循環的頻率成為既定值以上之一個模具且連續地進行軋邊加工之扁鋼胚的根數作為下限值，而決定上述既定之扁鋼胚的根數。 In order to achieve the object of solving the above problems, the control device for the constant-width pressure device of the present invention includes a mold disposed in one of a plurality of upper and lower stages, and the pair of molds are displaceable and transported to the flat steel embryo. The direction is orthogonal, and the mold for the flattening of the flat steel is switched between the mold of the upper section and the mold of the lower section at every predetermined number of flat steel blanks, and the edge is not rolled. A control device for a constant-width pressure device for cooling a processed mold, characterized in that the method is characterized in that a frequency of a thermal cycle applied to a mold per unit time is set to a predetermined value or more and continuous processing is performed. The number of the flat steel embryos is taken as the lower limit value, and the number of the predetermined flat steel embryos is determined.
根據本發明之定寬壓力裝置之控制方法及控制裝置，可抑制於對扁鋼胚實施軋邊加工時所使用之模具上產生由熱應力引起之熱龜裂之情況。 According to the control method and the control device for the constant-width pressure device of the present invention, it is possible to suppress the occurrence of thermal cracking due to thermal stress on the mold used for the edging of the flat steel.
1‧‧‧加熱爐 1‧‧‧heating furnace
2‧‧‧定寬壓力裝置 2‧‧‧Fixed pressure device
3a、3b‧‧‧立輥 3a, 3b‧‧‧ vertical rolls
3c‧‧‧立輥 3c‧‧‧ vertical roller
4a‧‧‧可逆式軋機 4a‧‧‧Reversible mill
4b‧‧‧單向軋機 4b‧‧‧One-way rolling mill
5‧‧‧截剪機 5‧‧‧cutting machine
6‧‧‧精軋機群 6‧‧‧ Finishing mill group
7‧‧‧捲取機 7‧‧‧Winding machine
21A、21B‧‧‧上模具 21A, 21B‧‧‧Upper mold
22A、22B‧‧‧下模具 22A, 22B‧‧‧ lower mold
23A、23B‧‧‧支架 23A, 23B‧‧‧ bracket
24A、24B‧‧‧上模具冷卻機構 24A, 24B‧‧‧Upper mold cooling mechanism
25A、25B‧‧‧下模具冷卻機構 25A, 25B‧‧‧ lower mold cooling mechanism
26‧‧‧冷卻水 26‧‧‧Cooling water
S‧‧‧扁鋼胚 S‧‧‧ flat steel embryo
圖1為顯示應用本發明之一實施形態之定寬壓力裝置之控制方法的熱軋生產線之構成之示意圖。 BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing the configuration of a hot rolling line for controlling a method of applying a constant pressure device according to an embodiment of the present invention.
圖2A為顯示圖1所示之定寬壓力裝置之構成之示意圖。 Fig. 2A is a schematic view showing the configuration of the constant pressure device shown in Fig. 1.
圖2B為顯示利用上模具對扁鋼胚實施軋邊加工時之定寬壓力裝置之動作之示意圖。 Fig. 2B is a schematic view showing the operation of the constant width pressure device when the flat steel blank is subjected to the edge rolling processing by the upper mold.
圖2C為顯示利用下模具對扁鋼胚實施軋邊加工時之定寬壓力裝置之動作之示意圖。 Fig. 2C is a schematic view showing the action of the constant width pressure device when the flat steel blank is subjected to the edge rolling processing using the lower mold.
圖3A為顯示於每隔2根扁鋼胚對實施軋邊加工之模具進行切換之情況下施加於模具之熱循環之圖。 Fig. 3A is a view showing a thermal cycle applied to a mold in the case where a mold for performing the edging process is switched every two flat steel slabs.
圖3B為顯示於每隔500根扁鋼胚對實施軋邊加工之模具進行切換之情況下施加於模具之熱循環之圖。 Fig. 3B is a view showing the thermal cycle applied to the mold in the case where the mold for the edging process is switched every 500 flat steel slabs.
以下，參照圖式對本發明之一實施形態之定寬壓力裝置之控制方法進行說明。 Hereinafter, a method of controlling a constant-width pressure device according to an embodiment of the present invention will be described with reference to the drawings.
首先，參照圖1，對應用本發明之一實施形態之定寬壓力裝置之控制方法的熱軋生產線之構成進行說明。但是，本發明之應用範圍不限於圖1所示之熱軋生產線之構成。 First, a configuration of a hot rolling line to which a method of controlling a constant-width pressure device according to an embodiment of the present invention is applied will be described with reference to Fig. 1 . However, the scope of application of the present invention is not limited to the configuration of the hot rolling line shown in FIG.
圖1為顯示應用本發明之一實施形態之定寬壓力裝置之控制方法的熱軋生產線之構成之示意圖。如圖1所示，應用本發明之一實施形態之定寬壓力裝置之控制方法的熱軋生產線中，首先於加熱爐1中將250mm之厚度的扁鋼胚加熱至1100~1250℃之溫度後，利用定寬壓力裝置2實施軋邊加工。然後，經由粗軋步驟將藉由定寬壓力裝置2而被軋邊加工之扁鋼胚成型為片條(sheet bar)。 BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing the configuration of a hot rolling line for controlling a method of applying a constant pressure device according to an embodiment of the present invention. As shown in FIG. 1, in a hot rolling line using a method for controlling a constant pressure device according to an embodiment of the present invention, first, a flat steel preform having a thickness of 250 mm is heated to a temperature of 1100 to 1250 ° C in the heating furnace 1. The hemming processing is performed by the constant width pressure device 2. Then, the flat steel blank which has been subjected to the edging process by the constant width pressure device 2 is formed into a sheet bar via a rough rolling step.
粗軋步驟係藉由進行複數道次之軋製的可逆式軋機4a、及朝行進方向進行一道次之軋製之單向軋機4b而進行。於可逆式軋機4a之前後設置有立輥(edger roll)3a、3b，於單向軋機4b之前方設置有立輥(edger roll)3c，且於各水平軋製道次前進行既定量之軋邊加 工。粗軋步驟中所形成之片條，經利用截剪機5將前端部之切頭部切斷除去後，利用精軋機群6軋製成既定之精加工厚度，並藉由捲取機7進行捲取。此外，精軋製中，於片條後端部來到截剪機5之位置時，藉由截剪機5將後端部之切頭部切斷除去。 The rough rolling step is carried out by a reversing rolling mill 4a which performs rolling in a plurality of passes, and a unidirectional rolling mill 4b which performs rolling once in the traveling direction. An edger roll 3a, 3b is provided before and after the reversing rolling mill 4a, and an edger roll 3c is provided in front of the unidirectional rolling mill 4b, and a predetermined amount of rolling is performed before each horizontal rolling pass. Side plus work. The strip formed in the rough rolling step is cut and removed by the cutting machine 5 by the cutting machine 5, and then rolled to a predetermined finishing thickness by the finishing mill group 6, and is carried out by the coiler 7. Rolling. Further, in the finish rolling, when the rear end portion of the strip comes to the position of the cutter 5, the cutting head of the rear end portion is cut and removed by the cutter 5.
其次，參照圖2A至圖2C，對圖1所示之定寬壓力裝置2之構成進行說明。 Next, the configuration of the constant-width pressure device 2 shown in Fig. 1 will be described with reference to Figs. 2A to 2C.
圖2A為顯示圖1所示之定寬壓力裝置2之構成之示意圖。如圖2A所示，定寬壓力裝置2具備：與扁鋼胚之板寬方向端部對峙之一對上模具21A、21B；配置於一對上模具21A、21B下方之一對下模具22A、22B；及於可向上下方向(箭頭A方向)及扁鋼胚之板寬方向(箭頭B方向)位移之狀態下支持上模具21A、21B及下模具22A、22B之支架23A、23B。 Fig. 2A is a schematic view showing the configuration of the constant width pressure device 2 shown in Fig. 1. As shown in FIG. 2A, the constant-width pressure device 2 includes: one pair of upper molds 21A and 21B facing the end portion of the flat steel sheet in the width direction; and one lower mold 22A disposed under the pair of upper molds 21A and 21B, 22B; and the holders 23A and 23B of the upper molds 21A and 21B and the lower molds 22A and 22B are supported in a state in which the upper and lower directions (arrow A direction) and the flat steel sheet are displaced in the width direction (arrow B direction).
此外，於支架23A、23B配置有藉由將冷卻水噴射於上模具21A、21B而對上模具21A、21B進行冷卻之上模具冷卻機構24A、24B。又，於支持搬送扁鋼胚之滾筒R之滾筒支持部RS配置有藉由將冷卻水噴射於下模具22A、22B而對下模具22A、22B進行冷卻之下模具冷卻機構25A、25B。 Further, the upper molds 21A and 21B are cooled by the upper molds 21A and 21B in the holders 23A and 23B, and the upper mold cooling mechanisms 24A and 24B are cooled. Moreover, the lower molds 22A and 22B are cooled by the lower molds 22A and 22B, and the lower molds 22A and 22B are cooled by the lower molds 22A and 22B in the drum support portion RS that supports the transfer of the flat steel rolls R.
當使用此種定寬壓力裝置2對扁鋼胚實施軋邊加工時，首先，如圖2B所示，藉由利用未圖示之位移汽缸使上模具21A、21B向扁鋼胚S之方向(箭頭C方向)位移，而利用上模具21A、21B對扁鋼胚S實施軋邊加工。此時，下模具冷卻機構25A、25B藉由對下模具22A、22B噴射冷卻水26，而將下模具22A、22B冷卻。 When the flattening of the flat steel is performed by using the constant width and pressure device 2, first, as shown in Fig. 2B, the upper molds 21A, 21B are oriented in the direction of the flat steel S by using a displacement cylinder (not shown). The arrow C direction is displaced, and the flat steel blank S is subjected to the edging process by the upper molds 21A and 21B. At this time, the lower mold cooling mechanisms 25A and 25B cool the lower molds 22A and 22B by spraying the cooling water 26 to the lower molds 22A and 22B.
接著，若利用上模具21A、21B對指定之根數的扁鋼胚S實施軋邊加工，則利用未圖示之位移汽缸，使上模具21A、21B返回圖2A所示之位置。並且，如圖2C所示，藉由利用未圖示之位移汽缸使下模具22A、22B向扁鋼胚S之方向(箭頭D方向)位移，而利用下模具22A、22B對扁鋼胚S實施軋邊加工。此時，上模具冷卻機構24A、24B藉由對上模具21A、21B噴射冷卻水26，而將上模具21A、21B冷卻。 Then, when the specified number of flat steel sheets S are subjected to the edging process by the upper molds 21A and 21B, the upper molds 21A and 21B are returned to the position shown in FIG. 2A by the displacement cylinder (not shown). Then, as shown in FIG. 2C, the lower molds 22A and 22B are displaced in the direction of the flat steel sheet S (in the direction of the arrow D) by a displacement cylinder (not shown), and the flat steel sheet S is applied to the flat steel sheet S by the lower molds 22A and 22B. Rolling edge processing. At this time, the upper mold cooling mechanisms 24A, 24B cool the upper molds 21A, 21B by spraying the cooling water 26 to the upper molds 21A, 21B.
以後，反複地執行同樣之處理。又，以上之說明中，首先執行利用上模具21A、21B之軋邊加工，但也可首先執行利用下模具22A、22B之軋邊加工。 In the future, the same processing is repeatedly performed. Further, in the above description, the edging process by the upper dies 21A and 21B is first performed, but the edging process by the lower dies 22A and 22B may be performed first.
接著，參照圖3A、圖3B對本發明之一實施形態之定寬壓力裝置之控制方法進行說明。 Next, a method of controlling a constant-width pressure device according to an embodiment of the present invention will be described with reference to Figs. 3A and 3B.
本發明之發明者經刻意研究之結果，如圖3A所示，獲得了以下之發現，即，於每隔1、2根等之少量根數的扁鋼胚(圖3A所示例為每隔2根扁鋼胚)，將圖2A所示之上模具21A、21B及下模具22A、22B切換而進行扁鋼胚S之軋邊加工之情況下，因不斷地重複藉由扁鋼胚S之接觸而使溫度上昇、藉由冷卻處理而使溫度降低之動作，會於上模具21A、21B及下模具22A、22B產生由熱應力引起之熱龜裂。亦即，於每隔1、2根等之少量根數的扁鋼胚，將上模具21A、21B及下模具22A、22B切換而進行扁鋼胚S之軋邊加工之情況下，由於單位時間施加於上模具21A、21B及下模具22A、22B之熱循環之頻率成為既定值以上，因而會於上模具21A、21B及下模具22A、22B產生由 熱應力引起之熱龜裂。 As a result of deliberate research by the inventors of the present invention, as shown in Fig. 3A, the following findings have been obtained, that is, a small number of flat steel embryos every 1 or 2, etc. (examples shown in Fig. 3A are every 2 In the case where the upper molds 21A and 21B and the lower molds 22A and 22B shown in FIG. 2A are switched to perform the roughing processing of the flat steel slab S, the contact by the flat steel slab S is continuously repeated. On the other hand, the temperature rises and the temperature is lowered by the cooling treatment, and thermal cracking due to thermal stress occurs in the upper molds 21A and 21B and the lower molds 22A and 22B. In other words, in the case where the upper molds 21A and 21B and the lower molds 22A and 22B are switched between the upper and lower molds 21A and 21B and the lower molds 22A and 22B every two or two, the unit time is Since the frequency of the thermal cycle applied to the upper molds 21A and 21B and the lower molds 22A and 22B is equal to or greater than a predetermined value, the upper molds 21A and 21B and the lower molds 22A and 22B are generated. Thermal cracking caused by thermal stress.
因此，於利用上述定寬壓力裝置2對扁鋼胚S施加軋邊加工時，將每單位時間施加於上模具21A、21B及下模具22A、22B之熱循環的頻率成為既定值以上之一個模具連續地進行軋邊加工之扁鋼胚的根數作為下限值，來決定對進行軋邊加工之模具進行切換之扁鋼胚的根數。如此，根據每單位時間施加於模具之熱循環的頻率來決定對實施軋邊加工之模具進行切換之扁鋼胚的根數，如圖3B所示，藉此，每單位時間施加於模具之熱循環的頻率變得低於既定值(圖3A所示之例為每隔500根扁鋼胚)，從而可抑制於上模具21A、21B及下模具22A、22B產生由熱應力引起之熱龜裂之情況。 Therefore, when the flattening process is applied to the flat steel sheet S by the above-described constant-width pressure device 2, the frequency of the heat cycle applied to the upper molds 21A and 21B and the lower molds 22A and 22B per unit time is set to a predetermined value or more. The number of the flat steel blanks which are continuously subjected to the edging process is used as the lower limit value, and the number of the flat steel slabs for switching the dies to be subjected to the edging process is determined. In this way, the number of flat steel embryos that switch the mold for performing the edge-cutting process is determined according to the frequency of the thermal cycle applied to the mold per unit time, as shown in FIG. 3B, whereby the heat applied to the mold per unit time is applied. The frequency of the cycle becomes lower than a predetermined value (the example shown in FIG. 3A is every 500 flat steel blanks), thereby suppressing thermal cracking caused by thermal stress in the upper molds 21A, 21B and the lower molds 22A, 22B. The situation.
再者，雖若為以較每單位時間施加於模具之熱循環之頻率成為既定值以上之一個模具連續地進行軋邊加工之扁鋼胚的根數更多之扁鋼胚的根數之情況下，可抑制因熱應力而於模具產生熱龜裂之情況。然而，若利用一個模具連續地進行軋邊加工之扁鋼胚的根數過多，因位移汽缸之動作頻率降低，而有造成位移汽缸發生故障等對周邊設備產生不好影響之可能。因此，以一個模具連續地進行軋邊加工之扁鋼胚的根數之上限值，係較佳為根據定寬壓力裝置2之設備限制所決定。此外，以一個模具連續地進行軋邊加工之扁鋼胚的根數，既可為固定值，也可通過連線對上模具21A、21B及下模具22A、22B進行測量，且基於測出之溫度進行變更。 In addition, the number of the flat steel embryos in which the number of flat steel embryos is continuously subjected to the edge-finishing process in which the frequency of the heat cycle applied to the mold per unit time is equal to or greater than the predetermined value is more. In the following, it is possible to suppress thermal cracking in the mold due to thermal stress. However, if the number of flat steel blanks continuously subjected to the edge-finishing process by one die is too large, the operating frequency of the displacement cylinder is lowered, and there is a possibility that the displacement cylinder may malfunction and the peripheral device may be adversely affected. Therefore, the upper limit of the number of flat steel blanks which are continuously subjected to the edge-finishing by one die is preferably determined according to the equipment limitation of the constant-width pressure device 2. In addition, the number of flat steel blanks continuously subjected to the edge-finishing process by one die may be a fixed value, or may be measured by the wire pair upper molds 21A, 21B and the lower molds 22A, 22B, and based on the measured The temperature is changed.
以上，對應用由本發明者所完成之發明之實施形態進行了說明，但構成本實施形態之本發明之一部分揭示之記述及圖式，並非用來限制本發明，本發明還包含將上述之各構成要素適宜地組合而成之構成者。亦即，基於本實施形態而可由熟悉該項技術者等所能完 成之其他之實施形態、實施例及應用技術等，皆包含於本發明之範疇內。 The embodiments of the invention made by the inventors of the present invention have been described above, but the description and drawings which constitute a part of the present invention are not intended to limit the present invention, and the present invention also includes the above The constituent elements are appropriately combined. That is, based on this embodiment, it can be completed by those skilled in the art. Other embodiments, examples, and application techniques are included in the scope of the present invention.
根據本發明，可提供一種定寬壓力裝置之控制方法及控制裝置，可抑制於對扁鋼胚實施軋邊加工時所使用之模具上產生由熱應力引起之熱龜裂之情況。 According to the present invention, it is possible to provide a control method and a control device for a constant width and pressure device, which can suppress the occurrence of thermal cracking caused by thermal stress on a mold used for performing roughing processing on a flat steel blank.
2‧‧‧定寬壓力裝置 2‧‧‧Fixed pressure device
21A、21B‧‧‧上模具 21A, 21B‧‧‧Upper mold
22A、22B‧‧‧下模具 22A, 22B‧‧‧ lower mold
23A、23B‧‧‧支架 23A, 23B‧‧‧ bracket
24A、24B‧‧‧上模具冷卻機構 24A, 24B‧‧‧Upper mold cooling mechanism
25A、25B‧‧‧下模具冷卻機構 25A, 25B‧‧‧ lower mold cooling mechanism
Claims (3)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013218920A JP2015080791A (en) | 2013-10-22 | 2013-10-22 | Sizing press control method and sizing press control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TW201532694A true TW201532694A (en) | 2015-09-01 |
Family
ID=52992726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW103136115A TW201532694A (en) | 2013-10-22 | 2014-10-20 | Control method and control device for sizing press device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2015080791A (en) |
| TW (1) | TW201532694A (en) |
| WO (1) | WO2015060124A1 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62282738A (en) * | 1986-05-30 | 1987-12-08 | Kawasaki Steel Corp | Width rolling down method and width rolling down press device for hot slab |
| JPH07113735A (en) * | 1993-10-19 | 1995-05-02 | Hitachi Metals Ltd | Heat cracking generation type high temperature wear testing method and device thereof |
| JP3201712B2 (en) * | 1995-08-28 | 2001-08-27 | 松下電工株式会社 | Determination method of temperature adjustment piping specification of molding die by computer simulation |
-
2013
- 2013-10-22 JP JP2013218920A patent/JP2015080791A/en active Pending
-
2014
- 2014-10-07 WO PCT/JP2014/076800 patent/WO2015060124A1/en active Application Filing
- 2014-10-20 TW TW103136115A patent/TW201532694A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015060124A1 (en) | 2015-04-30 |
| JP2015080791A (en) | 2015-04-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101609174B1 (en) | Hot Rolled Silicon Steel Producing Method | |
| WO2013123682A1 (en) | Pre-control method of head and tail shapes of continuous casting slab for reducing the removed amount from the head and tail of hot-rolled intermediate slab | |
| JP4579984B2 (en) | Method and apparatus for manufacturing metal strip | |
| CN100491001C (en) | Casting-milling process method for manufacturing copper and copper alloy band | |
| JP5200638B2 (en) | T-shaped steel cooling device | |
| KR20070085051A (en) | Device for producing a metallic product by rolling | |
| JP6915737B2 (en) | Manufacturing method of hat-shaped steel sheet pile | |
| TW201532694A (en) | Control method and control device for sizing press device | |
| JP4720250B2 (en) | Steel rolling control method | |
| JP2011200878A (en) | Method for rolling steel bar | |
| KR101024587B1 (en) | Hot rolling facilities | |
| JPS638849B2 (en) | ||
| TWI535859B (en) | Hot Rolling Method for High Carbon Steel | |
| JPH11267755A (en) | Manufacture of thick steel plate and straightening device used in it | |
| JP5042690B2 (en) | Slab width reduction equipment | |
| KR20150075571A (en) | Apparatus for producing bar of continuous casting process | |
| CN107199242A (en) | Heavy section steel rolled steel production system and method | |
| JP4757708B2 (en) | Steel plate manufacturing equipment | |
| JP5581668B2 (en) | T-shaped steel manufacturing equipment and manufacturing method | |
| JP5014867B2 (en) | Width reduction method for billets | |
| JP5042691B2 (en) | Operating method of slab width reduction equipment | |
| KR101499942B1 (en) | 2 stand type plate rolling mill | |
| KR101304713B1 (en) | Method and apparatus for distributing load between rolling mills | |
| JP2016078028A (en) | Rolling method for hot rolled steel plate | |
| RU2317163C1 (en) | Sheet rolling method and aggregate for performing the same |