4 ;二 2 Ο Α7 ___ Β7____ 五、發明說明（1 ) 【發明所屬之技術領域】 本發明係關於鋼板之調質輥軋方法及調質用輥軋機， 特別是關於適合於製造具有高光澤的罐用鋼板之鋼板之調 質輥軋方法及調質用輥軋機。 【習知技術】 針&於被要求具有電鍍前或電鍍後的光澤性之鋼板（ 例如：罐用鋼板）的調質輥軋作業，通常是使用兩座以上 的輥軋機以乾式輥軋法來進行，每一座輥軋機係分別負擔 不同的作用。例如：最初一座的輥軋機之主要目的係在於 調整材質（表面硬度等），因此需要摩擦力較強的霧面輥 ，以便能夠確保調整材質（表面硬度等）所需的伸長率。 這種霧面輥係利用噴砂加工、放電加工、雷射加工等各種 加工，在於其表面上形成表面粗度的方向性較弱（一般係 無方向性）的霧面之軋輥，表面粗度Ra大於0 . 5μΐΉ以 上。 另外，關於硏磨加工用軋輥，係有：外表面爲鏡面之 稱爲“光面輥”的軋輥；以及會留下硏磨痕跡（表面粗度 Ra大於〇' . 1 5μιη以上）之稱爲“留痕輝面輥”的軋輥 。而“留痕輝面輥"之中也有表面粗度Ra大於0 · 5μπι 以上的。但是，從經驗而言，留痕輝面輥係被認爲無法充 分確保輥軋時的伸長率，因此沒有被使用在最前段輥軋機 中的軋輥。 第2段以後的輥軋機的軋輥，爲了要減輕前段的霧面 (請先閲讀背面之注意事項再填窝本頁) 裝------ 訂---------線 經濟部智慧財產局員工消費合作杜印製 本紙張尺度適用中國國家標準（CNS)A4規格（210 * 297公釐） -4- A7 B7 五、發明說明（2 ) 的影響以改善光澤性|乃以留痕輝面輥進行輥軋，在最後 段則是爲了調整表面粗度，而‘採用具有與目標的鋼板表面 粗度相應的表面粗度的留痕輝面輥、光面輥或霧面輥來對 於鋼板進行輥軋。 此處，中段的具有留痕#面輥的輥軋機的數目愈多的 話，當然愈能夠提高光澤度，但是卻必須更多的設備成本 、運轉&本以及設置空間。 就設備成本面而言，最有利的方式係採用兩座輥軋機 。這種情況係如日本特開平1 一 9 5 8 0 3號公報所掲示 ，在前段係採用“短型霧面輥”之類的霧面輥；而後段則 是採用光面輥。 【發明所欲解決之課題】 近年來，因爲表面粗度受到限制而所要求的光澤度的 程度也不斷提高，尤其是只有兩座輥軋機之較少輥軋機台 數的調質用輥軋機中，以光面輥進行輥軋的次數較少，所 以變得難以對應所要求的高光澤度。 又，雖然也曾經考慮到不增加輥軋機台數，在第2次 進行輥軋時，將全段都採用光面輥而令鋼板經過輥軋機兩 次的輥軋的方法，但是這種方法也無法避免因爲加工次數 的增加所導致的成本上昇a 有鑒於上述問題點，本發明之目的就在於提洪：不必 增加設備•加工製程等的負擔，就可提高光澤性的手段‘ (請先Μ讀背面之注意事項再填寫本頁) 裝— 1訂！ — 線 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用令國國家標準（CNS)A4規格（210 X 297公釐） -5- A7 458820 B7___ 五、發明說明（3 ) 【本發明之槪要】 本發明爲了要以不增加設備•加工製程等的負擔，即 可提高鋼板的光澤性，所提供的解決方案係：鋼板之調質 輥軋方法以及調質用輥軋機，在於利用複數座的輥軋機對 於鋼板進行調質輥軋時，該鋼板是含碳量（c )低於 0.012wt%以下的鋼板：至少將位於最前段的調質 用軋輥成用：表面粗度R a小於1 . 2um以下的留痕輝面 輥；至少將位於最後段的調質用軋輥採用：表面粗度R a 小於0.5Uin以下的光面輥。 【用以解決課題之手段】 本發明人等爲了要達成前述目的而進行銳意硏究之結 果，獲得以下的創見。 (A )在於調質輥軋的最前段，如果使用在表面粗度 上不具方向.性的短型霧面輥、1放電加工霧面輕等的霧面輥 來進行輥軋的話，光澤性的惡化會很大。 另外，即使是相同的表面粗度，若是使用留痕輝面輥 來進行輥軋的話，光澤性尤其是電鍍後的光澤性可明顯改 善。這個理由是推測爲：因爲留痕輝面輥所造成的硏磨痕 跡係單一方向，因而不容易形成特別被認爲是造成光澤性 惡化的主要原因的“霧面凹洞”之小坑狀的凹部之緣故9 (B)針對於一般的低碳鋼’如果在最前段的輥軋機 中使用留痕輝面輥的話，將無法獲得充分的伸長率。這個 理由雖然尙未被解開，但是一般都認爲其理由之一是因爲 {請先閲讀背面之注意事項再填寫本頁)4; 2 2 〇 Α7 ___ Β7 ____ 5. Description of the invention (1) [Technical field to which the invention belongs] The present invention relates to a tempering rolling method for a steel sheet and a rolling mill for tempering, and particularly to a method suitable for manufacturing a high-gloss steel sheet. Method for tempering rolling of steel sheet for can steel sheet and rolling mill for tempering. [Know-how] Pin & quenching and tempering rolling operations on steel plates (eg, steel plates for tanks) that require gloss before or after plating, usually using two or more rolling mills in a dry rolling method To carry out, each rolling mill system bears a different role. For example, the main purpose of the first rolling mill was to adjust the material (surface hardness, etc.). Therefore, a matte roll with strong friction is required to ensure the elongation required for adjusting the material (surface hardness, etc.). This matte roll uses various processes such as sandblasting, electrical discharge machining, and laser processing. The surface roughness of the matte roll is relatively low (normally non-directional). More than 0.5 μΐΉ. In addition, regarding honing processing rolls, there are rolls called "smooth rolls" whose outer surface is mirror surface, and honing marks (surface roughness Ra is greater than 0 '. 15 μm or more). Roller of "marked shiny roll". The "smooth-glossy surface roller" also has a surface roughness Ra greater than 0 · 5 μm. However, empirically, the stigma-glossy surface roller system is not considered to sufficiently ensure the elongation during rolling, so It is not used in the front-end rolling mill. The rolls of the rolling mill after the second stage, in order to reduce the matte surface of the front stage (please read the precautions on the back before filling the page). Order --------- Consumption cooperation between employees of the Intellectual Property Bureau of the Ministry of Economic Affairs Du printed paper standards applicable to China National Standard (CNS) A4 (210 * 297 mm) -4- A7 B7 V. Description of the invention (2) to improve glossiness | rolling is performed by leaving a satin-glossy roll, and in the last stage, it is to adjust the surface roughness, while 'reservation with the surface roughness corresponding to the target steel surface roughness is adopted. Marked surface rolls, smooth rolls, or matte rolls are used to roll the steel sheet. Here, the more the number of rolling mills with leaving marks #face rolls in the middle section, the more the gloss can be improved, but it must be improved. Much equipment cost, operation & cost and installation space. On the other hand, the most advantageous method is to use a two-bed rolling mill. As shown in Japanese Patent Application Laid-Open No. 119 5 8 0 3, in the front section, a mist such as a "short matte roll" is used. [Surface of the invention] In recent years, the degree of gloss required due to the limitation of the surface roughness has been increasing, especially when only two roller mills are used. In the rolling mill for quenching and tempering with a small number of rolling mills, the number of times of rolling with a smooth roll is small, so it becomes difficult to cope with the required high gloss. Although it has been considered that the number of rolling mills is not increased. When rolling for the second time, smooth rolling is used for the entire section to roll the steel sheet through the rolling mill twice. However, this method cannot avoid the increase in costs caused by the increase in the number of processing times.a In view of the above problems, the purpose of the present invention is to improve the flood: a means to improve gloss without increasing the burden on equipment and processing processes' (please read the precautions on the back before filling this page) Order! — Printed by the Consumers' Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, the paper size is applicable to the national standard (CNS) A4 specification (210 X 297 mm) -5- A7 458820 B7___ 5. Description of the invention (3) [Summary of the invention] In order to improve the gloss of a steel sheet without increasing the burden on equipment and processing processes, the present invention provides a solution for tempering and rolling a steel sheet and a rolling mill for tempering. When the rolling mill performs temper rolling on a steel sheet, the steel sheet is a steel having a carbon content (c) of less than 0.012 wt%: at least the tempering roll located at the foremost stage is used: the surface roughness R a is less than 1.2 um The following scoring surface rolls; at least the rolls for quenching and tempering at the last stage are used: smooth rolls having a surface roughness R a of less than 0.5 Uin. [Means for Solving the Problems] As a result of earnest researches by the present inventors in order to achieve the aforementioned object, the following original ideas were obtained. (A) In the forefront of the temper rolling, if the rolling is performed by using a short matte roll that does not have directionality in surface roughness, or a matte roll with a light discharge matte surface, etc., the gloss is smooth. The deterioration will be great. In addition, even if the surface roughness is the same, if the rolling is performed by using a stigma-glossy roll, the glossiness, especially the glossiness after plating can be significantly improved. This reason is presumed to be because the honing marks caused by the satin-glossing roller are in a single direction, and it is not easy to form a small pit-like "fog surface recess" which is considered to be the main cause of deterioration in gloss The reason for the recess 9 (B) is for ordinary low-carbon steels. If a mark-smooth surface roll is used in the front-stage rolling mill, sufficient elongation cannot be obtained. Although this reason has not been solved, it is generally believed that one of the reasons is because (Please read the precautions on the back before filling this page)
裝-----！|訂！ — ·線 I 經濟部智慧財產局員工消费合作社印製 本紙張尺度適用中國困家標準（CNS)A4規格（210 X 297公釐） -6- A7 458820 B7___ 五、發明說明（4 ) 如果是留痕輝面輥的話，例如：硏磨痕跡是被附在軋輥的 圓周方向上，圓周方向上的表面粗度較小，摩擦力較弱的 緣故。 但是，如果含碳量被減少至低於某一含量以下之在於 進行調質輥軋前的硬度已經降低的鋼板，也就是“極低碳 鋼鋼板”的話，即使在最前段的輥軋機中使用留痕輝面輥 ，亦可^保能夠獲得所期的硬度的俾長率。 又，極低碳鋼在於前段所進行的霧面輥輥軋時，經_常 會變成伸長率過大，發生硬度過大的情況。或者雖然還不 至於變得硬度過大但卻因爲伸長率超出了目標管理値，而 被要求加強出貨前的品質調查《相對於此，如果以留痕輝 面輥來取代霧面輥的話，即可解決這種伸長値過大的問題 〇 本發明正就是基於以上所述的創見，更進一步反覆地 檢討之後終至完成的，其主要方案如下。 本發明的鋼板之調質輥軋方法，其特徵爲：在於利用 複數座的輥軋機對於鋼板進行調質輥軋時，該鋼板是含碳 童（C)低於0.012wt%以下的鋼板：至少將位於 最前段的調質用軋輥採用：表面粗度Ra小於1 . 2pm以 下的留痕輝面輥：至少將位於最後段的調質用軋輥採用： 表面粗度R a小於0 . 5pm以下的光面輥。 此外，本發明的鋼板之調質輥軋方法，其特徵爲：該 複數座的輥軋機是使用兩座輥軋機’前段的調質用軋輥是 採用：表面粗度R a小於1 . 2μιη以下的留痕輝面輥：後 本紙張尺度適用中國國家摞準（CNS)A4規格（210 * 297公釐） ----------I * 裝！ —訂--！11線 1 {請先Μ讀背面V注意事項再填寫本頁> 經濟部智慧財產局員工消f合作社印製 經濟部智慧財產局具工消費合作社印製 4 5 P 8 2 Ο A7 _____B7__ 五、發明說明（5 ) 段的調質用軋輥是採用：表面粗度Ra小於〇 . 5μιη以下 的光面輥。 此外，本發明的鋼板之調質用輥軋機，是具有複數座 輥軋機的鋼板調質用輥軋機，其特徵爲··至少將位於最前 段的調質用軋輥採用：表面粗度Ra小於1 . 2μιη以下的 留痕輝面輥；至少將位於最後段的調質用軋輥採用：表面 粗度R /小於〇，5 μ m以下的光面輥。 此外，本發明的鋼板之調質用輥軋機中，該複數座的 輥軋機是使用兩座輥軋機，前段的調質用軋輥是採用：表 面粗度Ra小於1 . 2μιη以下的留痕輝面輥；後段的調質 用軋輥是採用：表面粗度R a小於〇 . 5μπι以下的光面輥 【發明之實施形態】 以下|說明本發明之限定要件的理由。 〔對象鋼板的組成分〕 ~ 將鋼板限定爲含碳（C)量低於0 . 0 1 2wt%以 下的鋼板时理由是因爲：如果是含碳量高於0 . 0 1 2 w t %以上的鋼板的話，在最前段使用留痕輝面輥來進行 輥軋時 '無法讓伸長率達到所期望的硬度。再者，是以含 碳量低於0.0080wt%以下的鋼板尤佳•而含碳量 的下限爲0.OOlOwt%，因爲如果低於這個下限的 話，就有伸長率過大的可能性。 (請先《讀背面之沒意事項再填寫本頁) i ! ! I 訂·！ · 本纸張尺度適用中國國家標準（CNS)A4規格（210x297公爱） -8- 經濟部智慧財產局貝工消费合作社印製 4 ·ΐ 2 0 A7 _____B7_____ 五、發明說明（6 ) 第1圖係顯示本發明人等的調查結果之一例的調質輥 軋鋼板的含碳量與伸長率的關係的圖表。圖中，S B 0.6;SB0.15;SD0.6係分別表示在第1座 輥軋機中使用了表面粗度Ra爲0 . 6μπι的留痕輝面輥； 表面粗度R a爲〇 · 1 5pm.的留痕輝面輥；表面粗度R a 爲0 · 6μιη的短型霧面輥。無論哪一個調質用輥軋機都採 用雙機^的構成方式，第2台的輥乳機係使用表面粗度 Ra爲〇 . 2μηι的留痕輝面輥。輥軋條件是設定在：針對 於含碳量爲0 . 002wt%的鋼板能夠獲得1 , 6% 土 0.2%的伸長率的條件。 從第1圖可看出，如果第1台輥軋機採用短型霧面輥 的話，不僅光澤度較低|即使是極低碳鋼，其伸長率也變 得不穩定。又，第1台輥軋機若採用表面粗度R a爲 0 · 15μιη的留痕輝面輥的話，則無法確保伸長率。相對 於此，如果第1台輥軋機採用表面粗度Ra爲〇 . 6μιη的 留痕輝面輥的情況下，鋼板的含碳量若低於0 . 0 1 2 w t %的話，就可獲得所期目標的伸長率。但是，若低於 0·008wt%的話，將會開始降低伸長率而稍微不穩 定。、 本發明中作爲對象的鋼板，基於確保軟質性、加工性 的觀點係以含Ti量低於〇.2wt%、含Nb量低於 0 . lwt %的其中一方或者同時含有兩者爲宜。至於含 量的下限，係以含Ti量高於〇.〇〇5wt%、含Nb 量高於0.002wt%爲宜。 本紙張尺度適用中國@家標準（CNS)A4規格.（210x297公釐） ------------ --— lull ^*! — —— .1 (請先Μ讀背面之注意事項再填窝本頁) -9- 經濟部智慧財產局員工消费合作社印製 A7 B7 五、發明說明（7 ) 此外•基於脫氧以及固定含氮量的目的，亦可使用添 加了低於0.15wt%的鋁的鋼板。 至於其他的成分*係以含有通常的組成分範圍內的 Si : 〇 . 2wt% 以下；Mn : 0 . 以下（超Install -----! | Order! — · Line I Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. The paper size is applicable to the Chinese Standard for Household Standards (CNS) A4 (210 X 297 mm) -6- A7 458820 B7___ 5. Description of the invention (4) If it is left In the case of a smeared surface roll, for example, honing marks are attached to the roll in the circumferential direction, and the surface roughness in the circumferential direction is small and the friction is weak. However, if the carbon content is reduced below a certain level because the hardness of the steel sheet before temper rolling is reduced, that is, "ultra-low carbon steel sheet", even if it is used in the front-end rolling mill The mark-retaining surface roller can also ensure the elongation rate of the desired hardness. In addition, when the ultra-low carbon steel is rolled on the matte surface in the previous stage, the elongation tends to be too large and the hardness may be too large. Or even though it is not too hard, but because the elongation exceeds the target management threshold, it is required to strengthen the quality survey before shipment. "Compared to this, if the matte roller is replaced by a scorch roller, that is, It can solve the problem of excessive elongation. The present invention is based on the above-mentioned ideas, and it is finally completed after further review. The main solution is as follows. The method for tempering and rolling a steel sheet according to the present invention is characterized in that when the steel sheet is tempered and rolled by using a plurality of rolling mills, the steel sheet is a steel sheet containing less than 0.012 wt% of carbon children (C): at least The tempering roll located at the foremost stage is adopted: the surface roughness Ra is less than 1.2 pm, and the scorching surface roll is used: at least the tempering roll located at the last stage is used: the surface roughness Ra is less than 0.5 pm Glossy roller. In addition, the quenched and tempered rolling method of the steel sheet of the present invention is characterized in that the plurality of rolls are rolled using two rolls, and the rolls for quenching and tempering are used: the surface roughness Ra is less than 1.2 μm. Mark-retaining surface roller: This paper size applies to China National Standard (CNS) A4 (210 * 297 mm) ---------- I * Install! —Order--! 11 lines 1 {Please read the precautions on the back and fill in this page first.> Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs, printed by the cooperative, printed by the Ministry of Economic Affairs, and printed by the Consumer Goods Cooperative of the Intellectual Property Bureau. 4 5 P 8 2 〇 A7 _____B7__ 5. DESCRIPTION OF THE INVENTION The roll for quenching and tempering in the step (5) is a smooth roll with a surface roughness Ra of less than 0.5 μm. In addition, the rolling mill for tempering of a steel sheet of the present invention is a rolling mill for tempering of a steel sheet having a plurality of stand rolling mills, and is characterized by using at least the tempering roll at the forefront: the surface roughness Ra is less than 1 Glossy surface rolls with a length of 2 μm or less; at least the rolls for quenching and tempering at the last stage are used: smooth surface rolls with a surface roughness R / less than 0.5 μm. In addition, in the rolling mill for quenching and tempering of the steel sheet of the present invention, the plurality of rolling mills use two rolling mills, and the tempering rolls in the previous stage are used: the surface roughness Ra is less than 1.2 μm. Roller; The roller for quenching and tempering at the rear stage is a smooth roll with a surface roughness Ra less than 0.5 μm or less. [Embodiment of the invention] The reasons for limiting the requirements of the present invention will be described below. [Composition of target steel sheet] ~ The reason for limiting steel sheet to steel sheet with carbon (C) content less than 0. 1 2 wt% is because if the carbon content is more than 0. 1 2 wt% In the case of a steel sheet, when rolling with a scoring-glossy roll in the foremost stage, the elongation cannot reach the desired hardness. Furthermore, steel sheets with a carbon content of less than 0.0080wt% are particularly preferred. The lower limit of the carbon content is 0.0001Owt%, because if it is lower than this lower limit, the elongation may be excessive. (Please read the "Unexpected Issues on the Back Side" before filling out this page) i!! I Order · This paper size is applicable to China National Standard (CNS) A4 (210x297 public love) -8- Printed by Shelley Consumer Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs 4 · ΐ 2 0 A7 _____B7_____ V. Description of Invention (6) Figure 1 This is a graph showing the relationship between the carbon content and the elongation of the quenched and tempered rolled steel sheet as an example of the findings of the present inventors. In the figure, SB 0.6; SB0.15; SD0.6 indicates that the scoring surface roller with a surface roughness Ra of 0.6 μm was used in the first rolling mill; the surface roughness R a was 0.5 μm. .Smeared glossy roll; short matte roll with a surface roughness Ra of 0 · 6 μm. Regardless of the rolling mill for quenching and tempering, the double-roller structure is adopted, and the second milk roll mill uses a mark-retaining surface roll having a surface roughness Ra of 0.2 μm. The rolling conditions are set such that for a steel sheet having a carbon content of 0.002 wt%, an elongation of 1,6% soil and 0.2% can be obtained. It can be seen from Fig. 1 that if the first rolling mill uses short matte rolls, not only the gloss is low, but even the extremely low carbon steel, its elongation becomes unstable. In addition, if the first rolling mill adopts a stippled surface roll having a surface roughness Ra of 0 to 15 μm, the elongation cannot be ensured. On the other hand, if the first rolling mill uses a stippled surface roll with a surface roughness Ra of 0.6 μm, if the carbon content of the steel sheet is less than 0.1 2 wt%, then The target elongation. However, if it is less than 0.008 wt%, the elongation will start to decrease and it will be slightly unstable. The steel sheet to be used in the present invention is preferably one or both of Ti containing less than 0.2 wt% and Nb containing less than 0.1 wt% from the viewpoint of ensuring softness and workability. As for the lower limit of the content, it is preferable that the content of Ti is more than 0.0005 wt% and the content of Nb is more than 0.002 wt%. This paper size applies to China @ 家 standard (CNS) A4 specification. (210x297 mm) ------------ --- lull ^ *! — —— .1 (Please read the Note for refilling this page) -9- Printed by A7 B7, Employee Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of Invention (7) In addition • For the purpose of deoxidation and fixed nitrogen content, it can also be added below 0.15 wt% aluminum steel plate. As for the other components *, Si is contained in a general composition range: 0.2% by weight or less; Mn: 0. or less (super
I 過0·Iwt%以上更好）；P:0.05wt%以下； S:0.03wt%以下者爲宜。此外，Si :0.05 wt%以'下：P : 0 . 02wt% 以下：S : 0 . 02 w t %以下者尤佳。 再者，因應於不同之目的，亦可又添加入C a等的元 素。 〔最前段輥軋機的軋輥〕 至少在於最前段輥軋機的調質用軋輥必須要採用：表 面粗度Ra小於1 · 2μιη以下的留痕_面輥。如果是霧面 輥或表面粗度Ra大於1 . 2μιη以上的留痕輝面輥的話， 電鍍前的光澤性甚至於電鍍後的光澤性會惡化。至於表面 粗度的下限係以表面粗度Ra大於0 . 2〇μπι以上爲宜。 如果表面粗度R a不到0 . 2 〇μπι的話，伸長率（硬度） 易變得不定。較佳的表面粗度範圍係Ra爲0 · 5〜 1 . 0 μ m。 關於軋輥表面的處理，雖然並未特別地限定，但基於 耐磨性的考量*亦可實施例如：鍍鉻（C r )處理。 〔最後段輥軋機的軋輥〕 III — — — —— — — — . . 3 ί I I I 訂 * ! I I I ! I (請先閲讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準<CNS)A4規格（2〗0 * 297公釐） -10- 經濟部智慧財產局工消费合作社印製 A7 ___B7 _ 五、發明說明（8 ) 爲了確保光澤度超過預定的水準，至少在於最後段的 調質用軋輥必須要採用：表面粗度Ra小於0 . 5μιη以下 的光面輥。光面輥係可配合目標的表面粗度來採用鏡面輥 或留痕輝面輥的其中一種，但是表面粗度R a若大於 〇 . 5μπι以上的話，就無法確保光澤度（包括電鍍後的光 澤度）。但是，係以低於最前段輥軋機的軋輥的表面粗度 爲宜。特_別是以往之無法符合所要求的光澤度之軋輥的表 面粗度Ra爲◦ . 15〜0 . 3μιη左右，本發明的效果是 很顯著的。 雖然是最前段軋輥的表面粗度愈大光澤度愈會降低， 但是，即使是相同的表面粗度的情況下，藉由以留痕輝面 輥來取代霧面輥作爲最前段軋輥的話，亦可獲得光澤度的 提高。 雖然表面粗度的下限並無特別的限定，而且軋輥的表 面處理·也並無特別的限定，但是基於耐磨性的考量，亦可 實施例如：鍍鉻（Cr)處理。 〔上述以外的輥軋機的軋輥（超過3台輥軋機的情況）〕 在最前段、最後段以外的輥軋機所使用的軋輥係以光 面輥爲宜。尤其是在最前段、最後段以外的輥軋機所使用 的軋輥，基於確保光澤度的觀點而言|係以具有最前段、 最後段的軋輥表面粗度範園內的“軋輥表面粗度"的軋輥 爲宜。最好是隨著從最前段往最後段的順序，來採用軋輥 表面粗度愈來愈細的軋輥。 ------J I ---- i— — — — —— ^-------I (請先《讀背面之沒意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -11 - A7 _B7___' 五、發明說明（9 ) 〔其他〕 調質輥軋係以不實施鋼板潤滑的乾式輥軋爲宜。伸：ΐ 率係以低於3%以下爲宜。1 · 5%±1%更好：1 . 5 %±0 . 5%最佳。目標硬度設定在HR3 0T硬度爲 5 0〜6 0程度者爲宜。 至^調質輥軋後的電鍍則並未特別地指定。針對於本 發明的對象鋼板，如果是罐用鋼板的話，係實施一般的鍍 錫處理、鍍鉻處理、或者在這些處理之外又實施鍍鎳底層 處理或鉻酸鹽溶液處理等等的各種電鍍法均可適用。 只*本發明中的光澤度係依據曰本J I S Ζ 8 7 4 1規格，使用光澤度計，以2 0度的入射角來進行 測定的。 本發明的調質用輥軋機既可單獨地，應用於調質輥軋的 作業線，也可以設置在連續回火爐的出口側。 【實施例】 對於表1所示的各成分的冷軋鋼板進行再結晶回火（ 連續回火）' 處理後，依據表2所揭示的條件，而表2所示 以外的條件則是表2的No.1的第1輥軋機SDO.6 ;第2輥軋機MB0 . 5，伸長率爲1 ♦ 5的條件下’利 用2〜3台的調質用輥軋機來實施調質輥軋。然後’針對 於各個鋼板測定硬度（HR3 0T硬度）之後’實施鍍錫 (2.8公克/平方公尺），進行沖洗處理後’測定光澤 (請先Μ讀背面之注意事項再填寫本頁) 裝！111丨訂丨！ 線 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用中Θ固家標準（CNS)A4規格（210 * 297公轚） -12- 4^8820 Λ7 .* Αν _ Β7__ 五、發明說明（ι〇) 度》此處的光澤度係以下列的4級來進行評比： ◎ :1300 〜1500 〇：1100〜1300未滿 △:900〜1100未滿 X : 9 0 0未滿 將其結果顯示在表2 »從表2可以看出，本發明的每 —個發明'例都較之比較例，具有更優異的光澤度。 【發明之效果】 根據本發明1只利用2〜3台輥軋機所構成的調質用 輥軋機來實施單方向的輥軋，就可以獲得能夠製造出高光 澤度之例如：罐用鋼板之優異的效果。 【圖面之簡單說明】 第1圖係進行調質輥軋的鋼板的含碳（C)量與伸長 率的關係之圖表。 (請先《讀背面之注意事項再填窝本頁) 裝！--—丨訂------*線 I . 經濟部智慧財產局員工消费合作社印製 本紙張尺度適用令國國家標準（CNS)A4規格（210* 297公釐） -13-I is more than 0 · Iwt% is better); P: 0.05wt% or less; S: 0.03wt% or less is suitable. In addition, Si: 0.05 wt% or less: P: 0.02 wt% or less: S: 0.02 wt% or less is particularly preferred. Furthermore, elements such as Ca may be added for different purposes. [Rolls of the foremost roll mill] At least the rolls for quenching and tempering of the foremost roll mill must be used: a mark _ surface roll with a surface roughness Ra of less than 1 · 2 μm. If it is a matte roll or a stippled surface roll having a surface roughness Ra of more than 1.2 μm, the gloss before plating may be deteriorated even after plating. As for the lower limit of the surface roughness, it is preferable that the surface roughness Ra is more than 0.20 μm. When the surface roughness R a is less than 0.2 μm, the elongation (hardness) tends to be variable. A preferred range of surface roughness is Ra 0.5 to 1.0 μm. Regarding the treatment of the roll surface, although it is not particularly limited, it is also possible to perform, for example, a chromium plating (C r) treatment in consideration of abrasion resistance. [Rolls of the last roll mill] III — — — — — — —.. 3 ί III Order *! III! I (Please read the precautions on the back before filling this page) This paper applies Chinese national standards < CNS) A4 specification (2〗 0 * 297 mm) -10- Printed by the Industrial and Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 ___B7 _ V. Description of the invention (8) In order to ensure that the gloss exceeds the predetermined level, at least in the last paragraph The tempering roll must use a smooth roll with a surface roughness Ra of less than 0.5 μm. Glossy rollers can be used with mirror surface rollers or stippled surface rollers to match the target surface roughness. However, if the surface roughness R a is greater than 0.5 μm, the gloss cannot be ensured (including the gloss after plating). degree). However, it is preferable that the surface roughness of the roll is lower than that of the roll in the foremost rolling mill. In particular, the surface roughness Ra of a conventional roll that cannot meet the required glossiness is about 15 to 0.3 μm. The effect of the present invention is very significant. Although the surface roughness of the first-stage roll becomes larger, the gloss decreases, but even in the case of the same surface roughness, if the matte roll is replaced by the scoring-glossy roll as the first-stage roll, An increase in gloss can be obtained. Although the lower limit of the surface roughness is not particularly limited, and the surface treatment of the roll is also not particularly limited, a chromium plating (Cr) treatment may be performed, for example, in consideration of abrasion resistance. [Rolls of rolling mills other than the above (in the case of more than three rolling mills)] The rolls used in the rolling mills other than the first stage and the last stage are preferably smooth rolls. In particular, the rolls used in the rolling mills other than the foremost stage and the last stage are based on the viewpoint of ensuring glossiness | It is based on the "roller surface roughness " The rolls are more suitable. It is best to use rolls with increasingly finer surface roughness in the order from the foremost to the last. ------ JI ---- i----- ^ ------- I (Please read the "Unexpected Issues on the Back Side" before filling out this page) This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) -11-A7 _B7___ '5 Explanation of the invention (9) [Others] The hardening and tempering rolling system is preferably dry rolling without steel plate lubrication. The elongation: ΐ ratio is preferably less than 3%. 1 · 5% ± 1% is better: 1.5% ± 0.5% is the best. The target hardness is preferably set to a HR3 0T hardness of 50 ~ 60. The plating after tempering rolling is not specifically specified. For the present invention The target steel plate, if it is a steel plate for cans, is subjected to general tinning treatment, chrome plating treatment, or nickel plating undercoating treatment in addition to these treatments, or Various plating methods such as chromate solution treatment can be applied. * Only the gloss in the present invention is measured at an incident angle of 20 degrees using a gloss meter in accordance with the Japanese JIS Z 8 7 4 1 specification. The rolling mill for quenching and tempering of the present invention can be applied to the quenching and tempering rolling line alone, and can also be installed on the exit side of a continuous tempering furnace. [Example] The cooling of each component shown in Table 1 After the steel sheet is recrystallized and tempered (continuously tempered), the conditions disclosed in Table 2 are used, and the conditions other than those shown in Table 2 are the first roll mill SDO.6 of No. 1 in Table 2; 2-roll mill MB0.5, with an elongation of 1 ♦ 5 'The quenching and tempering rolling is performed using 2 to 3 tempering rolls. Then' after measuring the hardness (HR3 0T hardness) for each steel sheet ' Perform tin plating (2.8 g / m²), and measure the gloss after washing (please read the precautions on the back before filling out this page) Pack! 111 丨 Order 丨! Printed by the Consumer Affairs Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs The paper size of the paper is applicable to the Θ solid standard (CNS) A4 specification (210 * 297轚) -12- 4 ^ 8820 Λ7. * Αν _ Β7__ V. Description of the Invention (ι〇) Degree "The gloss here is evaluated by the following 4 levels: ◎: 1300 to 1500 〇: 1100 to 1300 Less than △: 900 ~ 1100 less than X: 9 0 0 Less than the results are shown in Table 2 »As can be seen from Table 2, each of the invention's examples of the present invention is more excellent than the comparative example. Gloss [Effect of the invention] According to the present invention, only a tempering rolling mill composed of 2 to 3 rolling mills is used to perform unidirectional rolling to obtain a high gloss, for example, for tanks. Excellent effect of steel plate. [Brief description of the drawing] Fig. 1 is a graph showing the relationship between the amount of carbon (C) and the elongation of a steel sheet subjected to quenched and tempered rolling. (Please read "Notes on the back before filling in this page") --- 丨 Order ------ * line I. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs This paper applies the national standard (CNS) A4 specification (210 * 297 mm) of this paper -13-