200821503 (1) 九、發明說明 【發明所屬之技術領域】 本發明關於構成附有冷卻水路的火爐殼體的鍋爐水冷 壁用板。 鍋爐水冷壁用板，是板材-管材的複合板，在形成位 於相當於水熱式鍋爐的心臟部位的火爐（燃燒室兼熱交換 器）的殼體的壁板時，作爲其主要構件來使用，將複數張 Φ 板縱橫熔接連接而形成火爐殼體。 爲了提高火爐殼體內面的耐久性，在鍋爐水冷壁用板 上單面披覆有鎳自熔合金等合金。 【先前技術】 已知以不會産生熱應變的方式來加熱’具有交錯地排 列的金屬管部和金屬板部的水冷板片段的方法（例如參照 專利文獻1 )。參照附圖來說明該水冷板片段20 (鍋爐水 # 冷壁用板）的構造以及製造方法。第3圖中（a)是金屬 管部21和金屬板部22的側視圖，（b )是其橫剖面圖， . (c )是水冷板片段20的橫剖面圖。並且，在本說明書中 ^ ，橫剖面是與管軸方向正交的剖面。 金屬管部21和金屬板部22，分別製作出將它們交替 排列形成板所需的數量，並使其長度一致（參照第3圖（ a) 、( b))。然後（參照第3圖（〇)) ’將第一個金 屬板部22以沿著第一個金屬管部2 1的管體軸線方向延伸 的狀態附加在該第一金屬管部21的邊部’並將金屬板部 -5- (2) (2)200821503 22的一側長邊和金屬管部2 1的周面呈線狀地熔接連接， 之後’將第二個金屬板部22依然以沿著管體軸線方向延 伸的狀態附加在第一個金屬管部21兩邊中剩下的一邊上 ，並將金屬板部22的一側長邊與金屬管部2 1的周面呈線 狀地熔接連接’接著，將第二個金屬管部21附加在該金 屬板部22上，並在板體長邊方向與管體軸線方向一致的 狀態下將金屬板部22的另一長邊與金屬管部21的周面呈 線狀地熔接連接，接下來反覆進行同樣的熔接連接從而製 造出作爲水冷板片段20的母材的附水路板體。 進而，在每個這樣的附水路板體上，在其單面或兩面 形成用Ni-Cr基等的自熔合金系的材料形成的自熔合金系 披覆部，從而製造出水冷板片段20。該披覆部利用噴鍍― 熔融處理法形成，詳細地說，對水冷板片段20的外面， 利用噴鍍法形成披覆部材料的層，然後再實施熔融處理。 由於使用這樣的製造方法，所以在該水冷板片段2 0 中，其母材成爲藉由熔接形成了從金屬管部21朝向金屬 板部22的過渡部位23的熔接構造。 其他的製造方法和構造還可舉出在具有在金屬管兩邊 立設有金屬板製縱翅板的構造的附翅板管體的外面形成自 熔合金系的保護披覆部，而形成爲水冷板片段用單元構件 ，進而藉由將縱翅板頂端相互熔接連接，使複數個該水冷 板片段用單元構件形成水冷板片段的板製造方法（例如參 照專利文獻2 )。參照附圖，說明該水冷板片段50 (鍋爐 水冷壁用板）的構造以及製造方法。第4圖中（a)是金 -6 - (3) 200821503 屬管3 1和縱翅板3 2的側視圖，（b )是其橫剖面圖，（e )是附翅板管體3 0的橫剖面圖，（d)是水冷板片段用單 元構件40的側視圖，（e )是其橫剖面圖，（f)是水冷 板片段5 0的橫剖面圖。 在該情況下，同樣以一根成爲冷卻水路的金屬管3 0 和兩片成爲連接部的縱翅板3 2爲一組，分別將其分體地 製作（參照第4圖（a ) 、（ b ))，對於水冷板片段5 0 • 所需的組數使其長度一致。然後（參照第4圖（c ))， 在每組使一對縱翅板32以沿著管體軸線方向延伸的狀態 附加在金屬管3 1的兩邊上，將縱翅板32的一側長邊與金 屬管31的周面呈線狀地熔接連接，從而製成具有：金屬 管3 1、和設置在該金屬管兩邊的沿著管體軸方向延伸的 一對縱翅板3 2的附翅板管體3 0。因此，這種附翅板管體 30同樣是藉由熔接而形成了從金屬管31到縱翅板32的 過渡部位3 3的熔接構造。 • 接著（參照第4圖（d ) 、（ e ))，分別在每個附翅 板管體30上，在其單面使用Ni-Cr基等自熔合金系的材 . 科形成自溶合金系披覆部41 ’而製成水冷板片段用單元 . 構件40。該披覆部仍然利用噴鍍-熔融處理法形成，但是 實施物件被細分化，不是對組裝後的水冷板片段5 0而是 分別對組裝前的水冷板片段用單元構件40進行實施。然 後（參照第4圖（f))’以這樣的水冷板片段用單元構 件40作爲構成單位，將縱翅板32的頂端作爲介面5 1相 互熔接而連接複數個該水冷板片段用單元構件40，從而 -7. (4) (4)200821503 製成水冷板片段50。 除此之外，雖然並未圖示，但是還已知：採用在板母 材披覆形成上述水冷板片段20之前的板母材，在其單面 側用耐腐飩性合金形成熔敷部時，在用於與其他板熔接連 接的端部利用堆焊（build up welding )法實施超合金披 覆，而在內部側用噴鍍-熔融處理法實施自熔合金披覆， 從而製成鍋爐火爐板的技術（例如參照專利文獻3 );以 及，在噴鍍後的溶融處理的加熱過程中，一邊用牽引用具 向縱長方向拉伸鍋爐板，一邊在多處使用限位用具來限制 朝向與縱長方向交叉的兩軸方向的位移，從而矯正變形的 合金披覆蓋鍋爐板的製造方法（例如參照專利文獻4 )。 在這些鍋爐水冷壁用板從金屬管部21向金屬板部22的過 渡部位23都是由熔接而形成的熔接構造。 〔專利文獻1〕日本特開2 0 0 0 - 3 2 9 3 0 4號公報 〔專利文獻2〕日本特開2001-004101號公報 〔專利文獻3〕日本特開2005-274022號公報 〔專利文獻4〕日本特開200 5-33762 3號公報 【發明內容】 〔發明欲解決的課題〕 但是，在這種現有的鍋爐水冷壁用板，由於從管體部 向板狀翅板部的過渡部位都是熔接連接而成的，所以該熔 接是否良好對鍋爐水冷壁用板的優劣産生很大影響。也就 是說，在鍋爐使用時不論是管體部還是翅板部都暴露在高 .8 . (5) 200821503 溫環境中，管體部因是中空的而可被水、蒸汽冷 板部不會被冷卻，所以它們的過渡部位會産生急 梯度也就是熱應變驅動力，在此影響下該過渡部 力的最大生成部位。因此，當過渡部位的熔接不 會存在例如針孔、凹凸、氣孔、焊瘤、咬邊、包 裂紋、飛濺、接縫形狀十分不均勻等等的任一種 良時，這些都會成爲缺口，所以，會以該處爲起 φ 腐餓性合金的熔敷部破損，從而過早發生母材被 形。 熔接部的不良情形難以用目視判斷，所以必 色浸透探傷試驗等來進行確認，並且發現有不良 的修補，要在實施噴砂（清理）後進行TIG熔接 麻煩。 而且，管體部與板狀翅板部的熔接，比起將 被此對接而熔接，其作業會困難得多，所以儘管 # 卻容易出現熔接缺陷，因此，不僅熔接作業自身 大，其之後的檢查和修補的負擔也很大。 . 於是，爲了減輕鍋爐水冷壁用板製造時的熔 . 負擔、和減輕鍋爐水冷壁用板組裝火爐殼體的維 而提高工作效率，來改良鍋爐水冷壁用板的構造 個技術上的課題。 〔用以解決課題的手段〕 本發明鍋爐水冷壁用板（第1發明）是爲了 卻，而翅 劇的溫度 位成爲應 完美，就 渣、熔接 的熔接不 點産生耐 腐鈾的情 須藉由染 的熔接部 等，十分 翅板頂端 花費工時 的負擔很 接作業的 護負荷進 就成了 一 解決這個 - 9- (6) 200821503 課題而發明的，該鍋爐水冷壁用板，將金屬製的附水路的 板體作爲母材，該金屬製的附水路的板體具有：成爲冷卻 水路的複數列管體、連接該管體的列之間的連接部、以及 位於最外列管體的更外側沿管體軸線方向延伸的一對翅板 ;在該母材的至少一面上施加耐腐蝕性合金所構成的熔敷 部而構成鍋爐水冷壁用板，其特徵在於：母材也就是上述 附水路的板體，以金屬製的無接縫的附翅板單管爲構成單 • 位，該附翅板單管，在單一管體的兩邊具備有：與該管體 連續狀地相連的一對翅板；將複數個該構成單位以翅板的 頂端相互熔接的方式進行連接，而成爲熔接部位於上述連 接部的中央線位置的熔接構造。 本發明的鍋爐水冷壁用板（第2發明），將金屬製的 附水路的板體作爲母材，該金屬製的附水路的板體具有： 成爲冷卻水路的複數列管體、連接該管體的列之間的連接 部、以及位於最外列管體的更外側沿管體軸線方向延伸的 ® 一對翅板；在該母材的至少一面上施加耐腐鈾性合金所構 成的熔敷部而構成鍋爐水冷壁用板，其特徵在於：母材也 - 就是上述附水路的板體，以金屬製的無接縫的附翅板管- - 連接部組件爲構成單位，該附翅板管-連接部組件，是將 屬於上述複數列管體的一部分的僅幾列管體、連接該管體 的列之間的連接部、以及位於最外列管體的更外側的一對 翅板，各個連續地相連而成；將複數個該構成單位以翅板 的頂端相互熔接的方式進行連接，而成爲熔接部位於上述 連接部中的一部分連接部的中央線位置的熔接構造。 一 10— (7) 200821503 並且，本發明的鍋爐水冷壁用板（第3發明），將金 屬製的附水路的板體作爲母材，該金屬製的附水路的板體 具有：成爲冷卻水路的複數列管體、連接該管體的列之間 的連接部、以及位於最外列管體的更外側沿管體軸線方向 延伸的一對翅板；在該母材的至少一面上施加耐腐餓性合 金所構成的熔敷部而構成鍋爐水冷壁用板，其特徵在於： 母材也就是上述附水路的板體，僅以金屬製的無接縫的附 • 翅板管-連接部組件的一體構造構成板體全區域，而成爲 無接縫一體構造；該附翅板管-連接部組件，是將上述複 數列管體、連接該管體的列之間的連接部、以及位於最外 列管體的更外側的一對翅板，各個連續地相連而成。 另外，本發明的鍋爐水冷壁用板（第4發明），是針 對上述第1〜第3發明的任一上述的鍋爐水冷壁用板，從 母材也就是上述附水路板體上的上述管體，朝向上述翅板 和上述連接部的過渡的部位的外表面，是形成爲凹曲面狀 另外，本發明的鍋爐水冷壁用板（第5發明），是針 . 對上述第1〜第4發明的任一上述的鍋爐水冷壁用板，構 . 成上述母材的上述連續地相連的無接縫附翅板單管或附翅 板管·連接部組件，是由熱擠壓法等的無接縫成形法所製 造的。 另外，本發明的鍋爐水冷壁用板（第6發明），是針 對上述第1〜第5發明的任一上述的鍋爐水冷壁用板，構 成上述熔敷部的耐腐蝕性合金，在上述板的周緣部的框緣 -11- (8) 200821503 狀區域中，係使用以富Ni的Ni-Cr合金爲基材且將B、 Si的含量分別抑制爲0.1質量％、0.5質量％以下的合金。 〔發明效果〕 在這樣的本發明的鍋爐水冷壁用板（第1發明）中’ 以可用熱擠壓法等製造，具有：管體部分、和設置在管體 部分的兩邊的沿著管體軸線方向延伸的一對翅板部分；且 整體連續地相連成一體的無接縫金屬製的附翅板單管作爲 構成單位，從管體部分到翅板部分的過渡部位就不必採用 熔接連接。另外，翅板部分頂端彼此的熔接要比上述過渡 部位的熔接容易進行，並且熔接部的緻密性高。這樣，在 鍋爐水冷壁用板製造時可減輕熔接作業的負擔，並且對於 組裝了製成的鍋爐水冷壁用板的火爐殼體來說，由於在上 述過渡部位不存在熔接部，所以熔敷部不會受到因該部位 的熔接不均勻等引起的缺口的影響，並且連接部中央的熔 接部以更良好的狀態來形成，因此，顯著減少了披覆部的 損傷並進而顯著減少了維護的必要性，工作狀態穩定進而 提高工作效率。 另外，在本發明的鍋爐水冷壁用板（第2發明）中， 以與上述無接縫附翅板單管的少數幾根整體連續相連成一 體所形成的構件相當的、無接縫附翅板管-連接部組件爲 構成單位，這樣仍然不必採用熔接連接從管體部分向翅板 部分的過渡部位，並且也會減少翅板部分頂端彼此的熔接 。這樣，在鍋爐水冷壁用板製造時可進一步減輕熔接作業 -12- 200821503 Ο) 的負擔，並且對於組裝有鍋爐水冷壁用板的火爐殼體來說 可進一步減輕披覆部的損傷。 因此，根據本發明（第1、第2發明），可減輕鍋爐 水冷壁用板製造時的熔接作業的負擔，並且可提高組裝有 該鍋爐水冷壁用板的火爐殼體的工作效率。 另外，在本發明的鍋爐水冷壁用板（第3發明）中， 僅以與上述複數根無接縫附翅板單管整體連續相連成一體 所形成的構件相當的、無接縫附翅板管-連接部組件這一 個整體構成板體的整個區域，這樣仍然不必採用熔接連接 從管體部分向翅板部分的過渡部位，並且完全不用附翅板 部分頂端彼此的熔接。這樣，從鍋爐水冷壁用板製造步驟 中將熔接作業全部清除，並且對於組裝有鍋爐水冷壁用板 的火:壚殼體來說，可進一步顯著減少披覆部的損傷。 因此，根據本發明（第3發明），消除了鍋爐水冷壁 用板製造時的熔接作業的負擔，並且可提高組裝有該鍋爐 水冷壁用板的火爐殼體的工作效率。 另外，在本發明的鍋爐水冷壁用板（第4發明）中， 在板體中的從管體部向翅板或連接部部分的過渡部位的外 面被形成爲凹曲面狀，這樣，可緩和向該處的應力集中情 形，並且該部位的剖面形狀形成爲壁厚度向根部平滑地逐 漸增加的形狀，從而該部位的剛性提高，因應力引起的變 形變小，因此上述因急劇的溫度梯度引起的應力産生的所 不希望的影響變小，上述的良好的作用效果增加。而且， 上述凹曲面狀的形成可採用熱擠壓法等無接縫成形法容易 .13. (10) 200821503 地進行，並且可有助於讓熱擠壓法等所使用的模型構件增 長使用壽命。 在此，從管體部分向翅板部分的過渡部位的外面形成 _ 的凹曲面狀的曲率半徑爲3mm以上較佳。這樣，在管體 部分和連接部部分的壁厚大都爲幾mm的板，可在通常情 況下充分緩和應力集中且顯著提高剛性。另外，藉由 3mm以上的半徑也可充分緩和對於披覆部的缺口效應。 • 半徑越大這些效果越顯著，但是從效果的飽和或避免浪費 的觀點來看，上述半徑以限於6mm左右較佳。 並且，在本發明的鍋爐水冷壁用板（第5發明）中， 構成板母材的上述連續地連接的無接縫的附翅板單管、或 無接縫附翅板管-連接部組件，採用熱擠壓法等無接縫成 形法製造，因此能可靠地使之連續地整體化，並能高效率 地生Μ。 並且，一般在現階段認爲熱擠壓法最適合用於無接縫 • 附翅板單管、或無接縫附翅板管-連接部組件的製造，但 是若設施情況或成本允許，還可用其他無接縫成形法例如 - 粉末燒結法、砂模鑄造法、離心澆注法等來製造構成板母: 、 材的無接縫的構成單位等。 另外，在本發明的鍋爐水冷壁用板（第6發明）中， 由於用於熔接連接的周緣部的熔敷部的Β、Si的混合量ρ艮 於很小，相對於充分混合有B、Si的自熔合金材料等的熟 衝擊裂紋敏感性，能成爲敏感性極低的熔敷部，因此，gp 使熔接連接鍋爐水冷壁用板彼此來構築火爐殼體，也能& -14- 200821503 (11) 體消除在板的連接縫産生熱衝擊裂紋的可能。另外，作爲 熱衝擊裂紋敏感性低的耐腐鈾性合金，從費用要求性能或 可獲得性來看第6發明的合金是優異的，但也可以根據各 種要求使用其他合金（例如JIS的4901、4902或ISO的 4955、9 723所記載的其他合金）。 【實施方式】 參照附圖說明本發明的鍋爐水冷壁用板的構造及其製 造方法的一種實施方式。第1圖（a)是附翅板管體60的 側視圖，（b)是其橫剖面圖，（c)是板母材70的側視 圖，（d)是其橫剖面圖，（e)是鍋爐水冷壁用板80的 側視圖，（f)是其橫剖面圖。並且，各個橫剖面圖中的 剖面是與管體部分6 1的軸方向垂直相交的剖面。 該鍋爐水冷壁用板80，首先，預先藉由熱擠壓法整 體地製造出作爲最小構成單位的金屬製的無接縫附翅板單 管也就是附翅板管體60 (參照第1圖（a) 、（ b))， 然後，對於複數個這樣的附翅板管體60，使它們的長度 一致後以翅板部分62的頂端作爲接縫71將其相互熔接連 接，製造出作爲附水路板體的板母材70 (參照第1圖（c )、（d )):接著，以板母材70的單面側作爲施工對象 面形成耐腐蝕性合金所構成的熔敷部，這樣，製造出鍋爐 水冷壁用板80。鍋爐水冷壁用板80的耐腐蝕性合金的熔 敷部的實施順序是（參照第1圖（e ) 、（ f)):例如， 先在施工對象面的周緣部的框緣狀區域81使用無熱衝擊 -15. (12) 200821503 裂紋敏感性的合金進行堆焊，接著在被框緣狀區域包圍的 內部區域82使用施工性良好的合金例如Ni系（Ni-Cr基 等）或Co系（Co-Cr基等）的自熔合金，進而還可以使 I 用在這些自熔合金中混合有WC的合金等，進行噴射-熔 融處理。 附翅板管體60(參照第1圖（a) 、（b))是金屬 條材，具有：成爲冷卻水路的管體部分61、和設置在該 • 管體部分的兩邊的沿管體軸線方向延伸的一對翅板部分 67，從管體部分61向翅板部分62的過渡部位63不是藉 由熔接連接，而是藉由熱擠壓法成爲一個整體。另外，該 過渡部位63的外面形成最小曲率半徑部位的曲率半徑爲 3mm以上6mm以下的凹曲面狀。附翅板管體60的材料多 使用便宜的碳素鋼、低合金鋼（Cr-Mo鋼等）的軋製材， 但是也可是不鏽鋼、鑄造件或其他金屬。在爲一般的鍋爐 火爐用板的情況下，其尺寸規格例如是，管體部分6 1的 • 直徑爲60〜80mm左右、管體部分61的壁厚爲5〜7mm 左右、翅板部分62的寬度爲10〜20mm左右，翅板部分 • 62的壁厚爲5〜7mm左右。熱擠壓法普遍是以玻璃作爲 . 潤滑劑的Ugine-Sejournet (玻璃潤滑材料擠壓）法，但 是也可是其他方法。 板母材70 (參照第1圖（c ) 、（ d ))，是熔接連 接上述複數個附翅板管體60而製成的。詳細地說，將例 如5〜20根左右的附翅板管體60，在使其長度一致後平 行排列，並將相鄰的翅板部分62的頂端彼此熔接連接， -16. (13) 200821503 這樣搭接成平板狀。在一般的鍋爐火爐用板的情況下，板 母材70的通常大小是長度爲4000〜8000mm左右、寬度 爲400-1200mm左右。板母材70中的接縫71的熔接連接 ，是使用一般的二氧化碳氣體保護焊法、TIG熔接法等來 進行，由於僅將板材與板材的斜口對接即可，而不需要將 板材與管體抵接，所以不僅作業簡便，效率提高，而且幾 乎不會産生熔接缺陷。在這樣製造出的熔接構造的板母材 φ 70中，對接並熔接的翅板部分62、62成爲連接管體部分 6 1、6 1的連接部，作爲熔接部的接縫7 1位於該連接部的 中線位置上。 鍋爐水冷壁用板80(參照第1圖（e) 、（〇)，是 在上述板母材70上形成周緣部熔敷部8 1和內部區域熔敷 部82而製造出的。 作爲無熱衝擊裂紋敏感性、用於周緣部熔敷部8 1的 耐腐蝕性合金，可舉出以富鎳的Ni-Cr合金爲基材，將作 • 爲熔點降低元素的硼B的含量控制爲〇 · 1質量％以下、且 將同爲熔點降低元素的矽Si的含量控制爲0.5質量％以下 . 的合金。規定這種合金材料的規格，作爲日本的標準可列 . 舉出棒材的 JISG4901、板材的 JISG4 9 02，作爲國際標準 可列舉出IS04955、IS09723。周緣部熔敷部81的厚度爲 1〜3mm左右。 板母材70的周緣部在成爲鍋爐水冷壁用板8〇後要用 於與其他板之熔接連接，所以無熱衝擊裂紋敏感性是很重 要的，而對剩下的內部區域僅進行熔接’從而著重於披覆 -17- (14) 200821503 部實施的容易性和成本。 由於適於以噴鍍·熔融處理法進行使用且施工性良 ’所以作爲在內部區域熔敷部8 2所使用的耐腐蝕性合 ，可舉出Ni-Cr基自熔合金。該材料的富鎳的Ni-Cr成 超過一半’而爲了使其具有噴鍍處理和熔融處理所優選 要的易熔性以及自熔解作用等且不會脆性過大，B、si 含量分別爲1〜5質量％。作爲這種合金材料可舉出其 成規格爲日本標準JISH8303、國際標準IS0 1 4920的鎳 熔合金材料。內部區域熔敷部82的厚度，通常爲0.5 3.0mm左右，但是在本發明的構造中，由於就連管體_ 板、連接部過渡部位和熔接部，母材的表面形狀都是完 的’所以只要熔敷部的厚度爲〇 . 2mm以上就可起到足 的防腐触作用。 另外，在形成內部區域熔敷部82時，在板母材70 單面上對內部區域熔敷部82進行噴鍍後再進行熔融處 時，最好一邊在使局部加熱用的加熱作用元件例如感應 圈沿板長度方向移動的狀態下進行加熱，一邊在該加熱 程中用牽引用具向長度方向牽拉板母材70，並在多處 用限位用具限制向與長度方向相交叉的兩軸方向的位移 而矯正變形。 這樣製造出的鍋爐水冷壁用板80，被從鍋爐製造 廠運送到鍋爐設置現場，將其周緣部與其他板的周緣部 接連接從而組裝成火爐殻體。 參照附圖，說明本發明的鍋爐水冷壁用板的構造及 好 金 分 需 的 組 白 翅 整 夠 的 理 線 過 使 從 工 熔 其 -18- (15) 200821503 製造方法的另一實施方式。第2圖（a)是無接縫附翅板 管-連接部組件90的側視圖，（b )是其橫剖面圖，（c ) 是板母材95 (附水路板體）的側視圖，（d )是其橫剖面 圖。在此，各個橫剖面圖中的剖面也是與管體部分91的 軸方向垂直相交的剖面。 該鍋爐水冷壁用板與上述鍋爐水冷壁用板80的不同 之處在於，成爲母材的附水路板體也就是板體母材95的 φ 構成單位變成了無接縫附翅板管-連接部組件90。 無接縫附翅板管-連接部組件90，具有：少數幾列的 管體9 1、連接這幾列管體之間的連接部部分92、和位於 最外列管體的外側的一對翅板部分93 ;且將其等各個連 續地相連。雖然與附翅板管體60同樣是以熱擠壓法整體 成形，但是不是像附翅板管體60那樣的單管，而是好像 將附翅板管體60排列從而預先組裝成板的一部分那樣， 在平面內以平行並列的狀態包括少數幾根管體部分9 1。 • 從各個部分來說，成爲冷卻水路的管體部分91可與 管體部分61相同，翅板部分93可與翅板部分62相同， . 連接部部分92可以是與翅板部分93兩片的量大致相等的 尺寸，從管體部分91向連接部部分92或翅板部分93的 過渡部位94可與過渡部位63相同。 無接縫附翅板管-連接部組件90所包含的管體部分 91的少數幾列，相當於板母材95或鍋爐水冷壁用板所包 含的管體部分91的複數列中的一部分，在本實施方式中 圖示出了三列的範例，但是也可具有兩列或四列或更多。 -19- 200821503 (16) 這樣的板母材95與板母材70同樣’是熔接連接複數 個無接縫附翅板管-連接部組件90而製造成的。詳細地說 ，藉由將相鄰的翅板部分93的頂端彼此熔接連接’組裝 成平板狀，在翅板部分93、93藉由該熔接連接成成爲連 接部的地方，作爲熔接部的接縫96位於連接部的中線位 置上。於是，由於在無接縫附翅板管-連接部組件90的製 造階段中在與管體部分9 1整體形成的連接部部分92上不 • 存在接縫96，所以板母材95是，熔接部位於連接了成爲 冷卻水路的複數列管體部分91的列之間的連接部中的一 部分連接部的中線位置上的熔接構造。一對翅板部分93 位於最外列管體的外側。 在這樣製造出的熔接構造的板母材95上，與上述板 母材70 —樣，施工、形成周緣部熔敷部8 1和內部區域熔 敷部82，從而成爲鍋爐水冷壁用板，但是板母材95中的 接縫96的數量要比板母材70中的接縫71的數量更少。 • 製造出的鍋爐水冷壁用板仍從鍋爐製造工廠運送到鍋 爐設置現場，將其周緣部與其他板的周緣部熔接連接從而 • 組裝成火爐殻體。 ， 下面說明本發明的鍋爐水冷壁用板的構造及其製造方 法的另一實施方式。 本實施方式也可以說成是上述另一實施方式的變形例 ，若轉用表示上述另一實施方式的板母材的構造的第2圖 進行說明，就是連板母材95中的焊縫96也被去除。 也就是說，將上述另一實施方式的作爲板構成單位的 -20- (17) 200821503 無接縫附翅板管-連接部組件90中的管體部分9 1的列數 ，增加到板母材9 5中的管體部分9 1的列數，從而該無接 縫附翅板管·連接部組件90不是板構成單位而成爲板整個 區域的構造材料。 該另一實施方式在板母材是比較窄的寬度（例如400 〜60 0mm/管體部分3〜6列）的情況下還是有用的。之後 ，隨著熱擠壓法等組件製造技術的提高，適用物件範圍可 馨 向比其更寬的板擴展。 〔其他〕 在上述實施方式中，利用熱擠壓法製造無接縫附翅板 單管60、無接縫附翅板管-連接部組件90，但是作爲代替 i 熱擠壓法的無接縫成形法，亦即可製造出將管體和沿著管 體軸線方向延伸的翅板或連接部以連續狀連接的方法，可 以舉例出粉末燒結法、以及砂模鑄造法、離心澆注法。 在上述實施方式中，以堆焊法形成使用了熱衝撃裂紋 敏感性低的合金所構成的周緣部熔敷部8 i，但是在能以 噴鍍·熔融處理法等其他方法形成覆蓋部的情況下，也能 以此來形成周緣部熔敷部8 1。 〔產業上的可利用性〕 本發明的鍋爐水冷壁用板可應用於包括所謂的超級鍋 爐在內的各種鍋爐的火爐殼體。作爲鍋爐的設置例子可舉 出焚化爐等。垃圾焚化發電設備的焚化爐也歸爲此類。 -21. (18) 200821503 【圖式簡單說明】 第1圖表示本發明的一個實施方式的鍋爐水冷壁用板 的構造及其製造方法，其中（a )是附翅板管體（無接縫 附翅板單管）的側視圖，（b )是其橫剖面圖，（c )是板 母材（附水路板體）的側視圖，（d )是其橫剖面圖，（e )是鍋爐水冷壁用板的側視圖，（f)是其橫剖面圖。 • 第2圖表示本發明的另一實施方式的鍋爐水冷壁用板 的構造及其製造方法，其中（a )是無接縫附翅板管-連接 部組件的側視圖，（b )表示其橫剖面圖，（c )是板母材 (附水路板體）的側視圖，（d )是其橫剖面圖。 第3圖表示以往的水冷板片段的一個例子，其中（a )是金屬管部與金屬板部的側視圖，（b )是其橫剖面圖 ，（c )是水冷板片段的橫剖面圖。 第4圖表示以往的水冷板片段的其他例子，其中（a • )是金屬管部和縱翅板的側視圖，（b )是其橫剖面圖， (c)是附翅板管體的橫剖面圖，（d)是水冷板片段用單 • 元構件的側視圖，（e )是其橫剖面圖，（〇是水冷板片 ^ 段的橫剖面圖。 【主要元件符號說明】 2 0 :水冷板片段（鍋爐水冷壁用板） 2 1 :金屬管部 2 2 ·金屬板部 -22- (19) 200821503 23 :過渡部位（熔接） 30 :附翅板管體 3 1 :金屬管 3 2 :縱翅板 3 3 :過渡部位（熔接） 40 :水冷板片段用單元構件 41:自熔合金系披覆部 φ 5 0 :水冷板片段（鍋爐水冷壁用板） 5 1 :介面（熔接） 60 :附翅板管體（無接縫附翅板單管） 6 1 :管體部分 62 :翅板部分 63 :過渡部分（一體成形） 70 :板母材（附水路板體） 7 1 :接縫（連接部中央的熔接部） I 8 0 :鍋爐水冷壁用板 8 1 :周緣部熔敷部 82 :內部區域熔敷部 * 90 :無接縫附翅板管-連接部組件 ^ 91 :管體部分 92 :連接部部分 93 :翅板部分 94 :過渡部分 95:板母材（附水路板體） 96 :接縫（連接部中央的熔接部） -23-[Technical Field] The present invention relates to a boiler water wall panel constituting a furnace casing with a cooling water passage. The boiler water-cooling wall plate is a plate-pipe composite plate, and is used as a main member when forming a wall plate of a casing located in a furnace (combustion chamber and heat exchanger) corresponding to a heart portion of a hydrothermal boiler. A plurality of Φ plates are welded longitudinally and transversely to form a furnace shell. In order to improve the durability of the inner surface of the furnace casing, an alloy such as a nickel self-fluxing alloy is coated on one side of the boiler water wall panel. [Prior Art] A method of heating a water-cooled plate segment having a metal pipe portion and a metal plate portion which are alternately arranged in a manner that does not cause thermal strain is known (for example, refer to Patent Document 1). The structure and manufacturing method of the water-cooled plate section 20 (boiler water #cold wall plate) will be described with reference to the drawings. Fig. 3(a) is a side view of the metal pipe portion 21 and the metal plate portion 22, (b) is a cross-sectional view thereof, and (c) is a cross-sectional view of the water-cooled plate segment 20. Further, in the present specification, the cross section is a cross section orthogonal to the tube axis direction. The metal pipe portion 21 and the metal plate portion 22 are respectively formed into a number required to alternately form the plates, and the lengths thereof are made uniform (see Figs. 3(a) and (b)). Then, (refer to Fig. 3 (〇)), the first metal plate portion 22 is attached to the side of the first metal pipe portion 21 in a state of extending along the pipe axial direction of the first metal pipe portion 2 1 . 'The long side of one side of the metal plate portion -5 - (2) (2) 200821503 22 and the circumferential surface of the metal pipe portion 2 1 are welded in a line shape, and then the second metal plate portion 22 is still The state extending in the axial direction of the tubular body is added to the remaining one of the two sides of the first metal pipe portion 21, and the long side of one side of the metal plate portion 22 and the circumferential surface of the metal pipe portion 21 are linear. Splicing connection ' Next, the second metal pipe portion 21 is attached to the metal plate portion 22, and the other long side of the metal plate portion 22 is made of metal in a state where the longitudinal direction of the plate body coincides with the axial direction of the pipe body. The circumferential surface of the tube portion 21 is welded in a line shape, and then the same welding connection is repeated to produce a water-attached plate body as a base material of the water-cooled plate segment 20. Further, a self-fluxing alloy-based covering portion formed of a material of a self-fluxing alloy such as a Ni-Cr group or the like is formed on one or both surfaces of such a water-retaining plate body to produce a water-cooled plate segment 20 . The coating portion is formed by a sputtering-melting method. Specifically, a layer of the coating material is formed on the outer surface of the water-cooling sheet segment 20 by a sputtering method, and then a melting treatment is performed. By using such a manufacturing method, in the water-cooled plate section 20, the base material is a welded structure in which the transition portion 23 from the metal pipe portion 21 toward the metal plate portion 22 is formed by welding. In another manufacturing method and structure, a self-fluxing alloy-based protective covering portion is formed on the outer surface of the fin-fed tubular body having a structure in which a metal plate-made longitudinal fin plate is provided on both sides of the metal pipe, and is formed into water-cooling. In the plate member, the unit member is formed by a method of manufacturing a water-cooled plate segment by using a plurality of the water-cooling plate segment unit members by welding the distal ends of the longitudinal fins to each other (see, for example, Patent Document 2). The structure and manufacturing method of the water-cooled plate section 50 (boiler water wall panel) will be described with reference to the drawings. Fig. 4(a) is a side view of the gold-6-(3) 200821503 genus 3 1 and the longitudinal fin plate 3 2, (b) is a cross-sectional view thereof, and (e) is a finned tube body 3 0 In the cross-sectional view, (d) is a side view of the water-cooling plate segment unit member 40, (e) is a cross-sectional view thereof, and (f) is a cross-sectional view of the water-cooled plate segment 50. In this case as well, a metal tube 30 which is a cooling water passage and two longitudinal fins 3 2 which are connecting portions are formed in a group, and they are separately produced (refer to Fig. 4(a), ( b)) For water-cooled plate segments 5 0 • The number of groups required is the same. Then, (see Fig. 4(c)), a pair of longitudinal fins 32 are attached to both sides of the metal pipe 31 in a state in which the pair of longitudinal fins 32 extend in the direction of the axial direction of the pipe, and one side of the longitudinal fins 32 is long. The side is welded to the circumferential surface of the metal pipe 31 in a line shape, and is formed to have a metal pipe 31 and a pair of longitudinal fins 3 2 extending along the axial direction of the pipe provided on both sides of the metal pipe. Finned tube body 30. Therefore, the finned tube body 30 is also welded to form a welded structure of the transition portion 33 from the metal pipe 31 to the longitudinal fin plate 32 by welding. • Next (refer to Figure 4 (d), (e)), each of the finned tube bodies 30 is made of a self-fluxing alloy such as Ni-Cr based on one side of the finned tube body 30. The cover portion 41' is formed into a unit for water-cooled plate segments. The member 40. The coating portion is still formed by the sputtering-melting method, but the object is subdivided, and the water-cooling plate segment unit member 40 before assembly is not applied to the assembled water-cooling plate segment 50. Then, (see FIG. 4(f))', the water-cooling plate segment unit member 40 is used as a constituent unit, and the distal end of the vertical fin plate 32 is welded to each other as the interface 51, and a plurality of the water-cooling plate segment unit members 40 are connected. , thus -7. (4) (4) 200821503 A water-cooled plate segment 50 is produced. In addition, although not shown, it is also known that a plate base material before the formation of the water-cooled plate segment 20 is formed by coating a plate base material, and a welded portion is formed on the one-side side thereof with a corrosion-resistant alloy. At the end, the super alloy coating is applied by the build up welding method at the end for fusion bonding with the other plates, and the self-fluxing alloy coating is performed on the inner side by the spray-melting method to form the boiler. The technique of the furnace plate (for example, refer to Patent Document 3); and in the heating process of the melt treatment after the thermal spraying, the boiler plate is stretched in the longitudinal direction by the tractor, and the limiter is used in a plurality of places to restrict the orientation. A method of manufacturing a boiler plate that corrects deformation by displacing the two axial directions that intersects the longitudinal direction (see, for example, Patent Document 4). In the boiler water-cooling wall plate, the transition portion 23 from the metal pipe portion 21 to the metal plate portion 22 is a welded structure formed by welding. [Patent Document 1] Japanese Laid-Open Patent Publication No. 2001-004101 (Patent Document 3) Japanese Laid-Open Patent Publication No. 2005-274022 (Patent Document No. JP-A-2005-274022) 4] Japanese Unexamined Patent Application Publication No. Hei No. Hei No. Hei No. Hei No. Hei. They are all welded and connected, so whether the welding is good or not has a great influence on the quality of the boiler water wall panel. That is to say, when the boiler is used, both the pipe body and the fin portion are exposed to a high .8 (5) 200821503 In the warm environment, the pipe body is hollow and can be replaced by water and steam. They are cooled, so they will produce an acute gradient, that is, a thermal strain driving force, at which the maximum generating portion of the transition force is affected. Therefore, when the fusion of the transition portion does not have any kind of goodness such as pinholes, irregularities, pores, welds, undercuts, cracks, splashes, seams, and the like, these will become gaps, so In this case, the welded portion of the φ hunger alloy is broken, so that the base material is formed too early. The problem of the welded portion is difficult to judge visually. Therefore, it is confirmed by the penetration test, etc., and it is found that there is a defective repair. It is troublesome to perform TIG welding after performing sand blasting (cleaning). Moreover, the welding of the tubular body portion and the plate-like fin portion is much more difficult to weld than the butting of the butt joint, so that although the welding defect is likely to occur, the welding operation itself is large, and thereafter The burden of inspection and repair is also great. Therefore, in order to reduce the burden of melting the boiler water wall panel and to reduce the efficiency of assembling the furnace shell for the boiler water wall assembly, the technical efficiency of the boiler water wall panel is improved. [Means for Solving the Problem] The boiler water wall panel (first invention) of the present invention is for the sake of the fact that the temperature of the fins should be perfect, and the slag and the fusion of the welds are not required to produce the uranium. It is invented by the welding of the welded joints, etc., which is the burden of man-hours at the top of the fins, and the load of the work is completed. The boiler is used to solve the problem. The plate body of the water-attached water path is used as a base material, and the plate body of the water-attached water path has a plurality of tubes which are cooling water passages, a connection portion between the columns connecting the tubes, and an outermost tube body. a pair of fins extending outward in the axial direction of the tube; and a welded portion formed of a corrosion-resistant alloy on at least one surface of the base material to form a boiler water wall panel, wherein the base material is The plate body of the water-attached road is formed by a metal seamless jointed fin-shaped single pipe, and the single-pipeded pipe has a continuous connection with the pipe body on both sides of the single pipe body. Pair of fins; The constituent units connected to the top plate fins welded to each other, rather become welded structure welded portion positioned in the middle portion of the wire connecting position. In the boiler water wall panel (second invention) of the present invention, a plate body made of a metal water passage is used as a base material, and the metal water supply plate body has a plurality of tubes which serve as cooling water passages, and the tube is connected a pair of fins extending between the rows of the body and the outer side of the outermost tubular body extending in the axial direction of the tubular body; and a melting of the uranium-resistant alloy on at least one side of the base material A plate for a water-cooling wall of a boiler is formed by a portion, and the base material is also a plate body of the water-attached pipe, and a jointless component of a metal-made jointed fin-tube is used as a constituent unit. The tube-and-connecting unit is a pair of tubes belonging to a part of the plurality of tubes, a connecting portion between the columns connecting the tubes, and a pair of fins located outside the outermost tube. The plates are continuously connected to each other, and a plurality of the constituent units are connected such that the tips of the fins are welded to each other, and the welded portion is a welded structure in which the welded portion is located at a central line position of a part of the connecting portions. In addition, the plate for a water-cooling wall of a boiler according to the present invention (the third invention) has a plate body made of a metal water-retaining pipe as a base material, and the plate body of the water-attached water path of the metal has a cooling water passage. a plurality of rows of tubes, a connecting portion between the columns connecting the tubes, and a pair of fins extending outward in the axial direction of the outermost tubular body; applying resistance to at least one side of the base material A plate for a water-cooling wall of a boiler is formed by a welded portion made of a hunger-resistant alloy, wherein the base material is a plate body of the water-attached pipe, and the jointless finned tube-connecting portion made of only metal is used. The integral structure of the assembly constitutes a whole area of the plate body, and becomes a seamless joint structure; the winged plate tube-connecting part assembly is a connecting portion between the plurality of columns, the column connecting the pipe body, and A pair of fins on the outer side of the outermost tube body are continuously connected to each other. In addition, the boiler water-cooling wall plate according to any one of the first to third aspects of the present invention is the boiler water-cooling wall plate, wherein the base material is the pipe on the water-retaining plate body. The outer surface of the portion facing the transition between the fin plate and the connecting portion is formed into a concave curved surface. The boiler water wall panel according to the present invention (the fifth invention) is a needle. For the first to fourth According to any of the above-described boiler water-cooling wall plates, the above-mentioned continuously connected seamless jointed fin-shaped single-tube or fin-finished tube-connecting unit assembly of the above-mentioned base material is formed by a hot extrusion method or the like. Manufactured by jointless forming. In the boiler water-cooling wall plate according to any one of the first to fifth aspects of the present invention, the corrosion-resistant alloy of the welded portion is formed in the plate. In the case of the frame edge of the peripheral portion -11-(8) 200821503, an alloy containing Ni-Cr alloy rich in Ni as a base material and having a content of B and Si of 0.1% by mass or less and 0.5% by mass or less is used. . [Effect of the Invention] In the boiler water wall panel (first invention) of the present invention, it is produced by a hot extrusion method or the like, and has a tubular body portion and a tube body disposed on both sides of the tubular body portion. A pair of fin portions extending in the axial direction; and a single jointless metal finned single tube integrally connected as a unit, the transition portion from the tube portion to the fin portion need not be welded. Further, the welding of the tips of the fin portions is easier than the fusion of the transition portions, and the density of the welded portions is high. In this way, when the boiler water wall panel is manufactured, the burden of the welding operation can be reduced, and for the furnace shell in which the prepared boiler water wall panel is assembled, since there is no welded portion at the transition portion, the welding portion is It is not affected by the notch due to welding unevenness or the like in the portion, and the welded portion in the center of the connecting portion is formed in a more favorable state, thereby significantly reducing the damage of the covering portion and further reducing the necessity of maintenance. Sexuality, stable working conditions and improved work efficiency. Further, in the boiler water wall panel (second invention) of the present invention, the joint member is formed by a member which is continuously connected to a single unit of the jointless finned single tube. The tube-connector assembly is a constituent unit so that it is still unnecessary to use a fusion joint to the transition from the tubular portion to the fin portion, and also to reduce the fusion of the top ends of the fin portions. Thus, the burden of the welding operation -12-200821503 Ο can be further reduced when the boiler water wall panel is manufactured, and the damage of the coating portion can be further reduced for the furnace casing in which the boiler water wall panel is assembled. Therefore, according to the present invention (the first and second inventions), it is possible to reduce the burden of the welding work during the manufacture of the water-cooling wall plate for the boiler, and to improve the work efficiency of the furnace casing in which the water-cooling wall plate for the boiler is assembled. Further, in the boiler water wall panel (third invention) of the present invention, the jointless fin plate is equivalent to only the member formed by continuously connecting the plurality of jointless finned single tubes as a whole. The tube-joint assembly as a whole constitutes the entire area of the plate body, so that it is still unnecessary to use a fusion joint to the transition from the pipe body portion to the fin portion, and the fusion of the top ends of the fin portions is not required at all. In this way, the welding operation is completely removed from the boiler water wall manufacturing step, and the damage of the coating portion can be further significantly reduced for the fire: 垆 housing in which the boiler water wall panel is assembled. Therefore, according to the third aspect of the invention, the burden of the welding operation at the time of manufacturing the boiler water-cooling wall plate is eliminated, and the work efficiency of the furnace casing in which the boiler water-cooling wall plate is assembled can be improved. Further, in the boiler water wall panel (fourth invention) of the present invention, the outer surface of the transition portion of the plate body from the pipe body portion to the fin plate or the joint portion is formed into a concave curved shape, which can be alleviated. The stress concentration to the portion is formed, and the cross-sectional shape of the portion is formed into a shape in which the wall thickness gradually increases toward the root portion, so that the rigidity of the portion is increased, and the deformation due to the stress is small, so that the above-mentioned sudden temperature gradient is caused. The undesired effects of the stress are reduced, and the above-mentioned good effects are increased. Further, the above-mentioned concave curved shape can be formed by a seamless forming method such as a hot extrusion method. 13. (10) 200821503, and can contribute to the growth of the mold member used in the hot extrusion method or the like. . Here, it is preferable that the radius of curvature of the concave curved surface formed by the outer surface of the transition portion of the tubular body portion to the fin portion is 3 mm or more. Thus, the plate having a wall thickness of a few mm in the tubular body portion and the joint portion can sufficiently alleviate the stress concentration and remarkably increase the rigidity under normal circumstances. Further, the notch effect on the covering portion can be sufficiently alleviated by a radius of 3 mm or more. • The larger the radius, the more significant these effects are, but from the viewpoint of saturation of the effect or avoidance of waste, the above radius is preferably limited to about 6 mm. Further, in the boiler water wall panel (fifth invention) of the present invention, the continuously connected seamless jointed finned single tube or the jointless finned tube tube-connecting unit constituting the sheet base material It is manufactured by a jointless forming method such as a hot extrusion method, so that it can be reliably integrated continuously and can be efficiently produced. Moreover, it is generally considered at this stage that hot extrusion is most suitable for the manufacture of jointless • finned single tube, or jointless finned tube – joint components, but is also available if the facility conditions or cost allow Other jointless forming methods, for example, a powder sintering method, a sand mold casting method, a centrifugal casting method, and the like, are used to produce a seamless constituent unit that constitutes a sheet metal: a material. Further, in the boiler water wall panel according to the present invention (the sixth invention), the amount of enthalpy of mixing of cerium and Si in the welded portion for the peripheral portion of the welded joint is small, and B is sufficiently mixed. The mature impact crack sensitivity of the self-fluxing alloy material of Si can be a very low-sensitivity welding portion. Therefore, gp can be used to form a furnace shell by welding the water-cooling wall plates of the boiler, and can also be used. 200821503 (11) The body eliminates the possibility of thermal shock cracks in the joints of the plates. Further, as the corrosion-resistant uranium alloy having low thermal shock crack sensitivity, the alloy of the sixth invention is excellent in terms of cost performance and availability, but other alloys (for example, JIS 4901) may be used according to various requirements. 4902 or other alloys described in ISO 4955, 9 723). [Embodiment] An embodiment of a structure of a boiler water wall panel and a method of manufacturing the same according to the present invention will be described with reference to the drawings. Fig. 1(a) is a side view of the finned tube body 60, (b) is a cross-sectional view thereof, (c) is a side view of the plate base material 70, and (d) is a cross-sectional view thereof, (e) It is a side view of the boiler water wall panel 80, and (f) is a cross sectional view. Further, the cross section in each cross-sectional view is a cross section perpendicular to the axial direction of the tubular body portion 61. In the boiler water wall panel 80, first, a metal jointless finned single tube which is a minimum constituent unit, that is, a finned tube body 60, is integrally produced by a hot extrusion method in advance (see Fig. 1). (a), (b)), and then, for a plurality of such finned tube bodies 60, their lengths are made uniform, and the ends of the fin portions 62 are joined as joints 71 to weld them to each other to produce a joint. The plate base material 70 of the water channel plate body (see FIGS. 1(c) and (d)): Next, a single-side side of the plate base material 70 is used as a welding target portion to form a welded portion made of a corrosion-resistant alloy. A boiler water wall panel 80 is manufactured. The order of the welding portion of the corrosion-resistant alloy of the boiler water-cooling wall plate 80 is (see FIGS. 1(e) and (f)): for example, first, the frame-like region 81 of the peripheral portion of the surface to be coated is used. (12) 200821503 The crack-sensitive alloy is subjected to surfacing, and then an alloy having good workability such as Ni-based (Ni-Cr-based or the like) or Co-system is used in the inner region 82 surrounded by the frame-like region. The self-fluxing alloy (such as a Co-Cr group) may further be subjected to a spray-melt treatment by using an alloy or the like in which the WC is mixed with the self-fluxing alloy. The finned tube body 60 (see Figs. 1(a) and (b)) is a metal strip having a tubular body portion 61 serving as a cooling water passage and a tube axis disposed on both sides of the tubular body portion. The pair of fin portions 67 extending in the direction, the transition portion 63 from the tube portion 61 to the fin portion 62 is not joined by fusion bonding, but is integrally formed by hot extrusion. Further, the outer surface of the transition portion 63 is formed into a concave curved surface having a radius of curvature of a portion having a minimum radius of curvature of 3 mm or more and 6 mm or less. The material of the finned tube body 60 is often a rolled material of inexpensive carbon steel or low alloy steel (Cr-Mo steel, etc.), but may be stainless steel, a cast piece or other metal. In the case of a general boiler stove plate, the size of the pipe body portion 6 1 is, for example, about 60 to 80 mm, the pipe body portion 61 has a wall thickness of about 5 to 7 mm, and the fin portion 62. The width is about 10 to 20 mm, and the wall thickness of the fin portion 62 is about 5 to 7 mm. The hot extrusion method is generally a Ugine-Sejournet method using glass as a lubricant, but other methods are also available. The plate base material 70 (see Figs. 1(c) and (d)) is obtained by welding and connecting the plurality of finned tube bodies 60 described above. Specifically, for example, about 5 to 20 of the finned tube bodies 60 are arranged in parallel after their lengths are aligned, and the tips of the adjacent fin portions 62 are welded to each other, -16. (13) 200821503 This is lapped into a flat shape. In the case of a general boiler stove plate, the plate base material 70 has a normal size of about 4000 to 8000 mm and a width of about 400 to 1200 mm. The welding connection of the joint 71 in the base metal material 70 is performed by a general carbon dioxide gas shielded welding method, a TIG welding method, or the like, since only the plate material is butted against the oblique opening of the plate material, and the plate and the pipe are not required. The body is abutted, so that the operation is simple, the efficiency is improved, and welding defects are hardly generated. In the plate base material φ 70 of the welded structure thus produced, the butted and welded fin portions 62 and 62 serve as joint portions for connecting the pipe body portions 61 and 61, and the joint 7 1 as a welded portion is located at the joint. The midline position of the department. The boiler water wall panel 80 (see Fig. 1(e) and Fig. 1) is formed by forming the peripheral portion welded portion 81 and the inner region welded portion 82 on the above-mentioned plate base material 70. The impact crack resistance and the corrosion-resistant alloy used for the peripheral portion welded portion 81 are controlled by a nickel-rich Ni-Cr alloy as a base material, and the content of boron B as a melting point lowering element is controlled to 〇 - 1% by mass or less, and the content of the yttrium Si which is the same as the melting point-reducing element is controlled to 0.5% by mass or less. The specification of the alloy material is specified as a standard in Japan. JISG 4901 of the bar is cited. JISG4 9 02 of the sheet material, IS04955 and IS09723, and the thickness of the peripheral portion welded portion 81 is about 1 to 3 mm. The peripheral portion of the base material 70 is used for the boiler water wall panel 8 It is very fused to the other plates, so it is important to have no thermal shock crack sensitivity, and only weld the remaining inner regions to focus on the ease and cost of the -17-(14) 200821503 implementation. Suitable for spraying/melting treatment Further, the workability is good. Therefore, as the corrosion resistance used in the inner region welding portion 82, a Ni-Cr-based self-fluxing alloy is used. The nickel-rich Ni-Cr of the material is more than half in order to make It has a desired fusibility and a self-melting action, such as a sputtering process and a melt process, and does not cause excessive brittleness, and the B and Si contents are each 1 to 5 mass%. As such an alloy material, the specifications are as follows. The nickel-melting alloy material of the Japanese standard JISH8303 and the international standard IS0 1 4920. The thickness of the inner region welding portion 82 is usually about 0.5 3.0 mm, but in the structure of the present invention, the transition of the pipe body and the joint portion is In the part and the welded portion, the surface shape of the base material is complete. Therefore, as long as the thickness of the welded portion is 〇. 2 mm or more, the anti-corrosion action of the foot can be exerted. Further, when the internal portion welded portion 82 is formed, When the plate base material 70 is sprayed on the inner surface of the inner region welding portion 82 and then melted, it is preferable to heat the heating action element for local heating, for example, the induction coil in the longitudinal direction of the plate. One side in the plus In the process, the plate base material 70 is pulled in the longitudinal direction by the tractor, and the displacement in the two-axis direction intersecting with the longitudinal direction is restricted by the stopper at a plurality of places to correct the deformation. The boiler water-cooling wall plate 80 thus manufactured is manufactured. It is transported from the boiler manufacturing plant to the boiler installation site, and the peripheral portion thereof is connected to the peripheral portion of the other plate to be assembled into a furnace casing. The structure and good gold of the boiler water wall panel of the present invention will be described with reference to the accompanying drawings. The required group of white-winged stalks is sufficient to allow the smelting of the -18- (15) 200821503 manufacturing method. Fig. 2(a) is a side view of the jointless finned tube-connecting unit assembly 90, (b) is a cross-sectional view thereof, and (c) is a side view of the base material 95 (with a water collecting plate body). (d) is its cross-sectional view. Here, the cross section in each cross-sectional view is also a cross section perpendicularly intersecting the axial direction of the tubular portion 91. The difference between the water-cooling wall plate for the boiler and the water-cooling wall plate 80 for the boiler is that the water-containing plate body to be the base material, that is, the φ constituent unit of the plate base material 95 becomes a seamless jointed finned tube-connection. Assembly 90. The jointless finned tube-joint portion assembly 90 has a few rows of tubes 9 1 , a connecting portion portion 92 connecting the rows of tubes, and a pair of outer sides of the outermost tube body The fin portion 93; and each of them is continuously connected. Although it is integrally formed by the hot extrusion method similarly to the bellows tube body 60, it is not a single tube like the finned tube body 60, but it seems that the finned tube body 60 is arranged to be assembled in advance as a part of the plate. In that way, a few tube portions 9 1 are included in a parallel juxtaposed state in the plane. • From each portion, the tubular body portion 91 which becomes the cooling water passage can be identical to the tubular body portion 61, and the fin portion 93 can be identical to the fin portion 62. The connecting portion portion 92 can be two pieces with the fin portion 93. The substantially equal size, the transition from the tubular portion 91 to the connecting portion 92 or the fin portion 93 can be the same as the transition 63. The few rows of the tubular body portion 91 included in the jointless finned tube-joint portion assembly 90 correspond to a part of the plurality of rows of the tubular body portion 91 included in the plate base material 95 or the boiler water wall panel. An example of three columns is illustrated in the present embodiment, but may also have two columns or four columns or more. -19- 200821503 (16) Such a plate base material 95 is manufactured by welding a plurality of jointless finned tube-connecting unit assemblies 90 in the same manner as the plate base material 70. In detail, the top ends of the adjacent fin portions 93 are welded to each other to be assembled into a flat shape, and the fin portions 93 and 93 are joined to form a joint portion by the fusion bonding, and serve as a joint of the welded portion. 96 is located at the centerline of the connection. Thus, since the seam 96 is not present on the joint portion 92 integrally formed with the tubular portion 91 in the manufacturing stage of the jointless finned tube-joint assembly 90, the base material 95 is welded. The portion is located in a welded structure at a center line position of a part of the connection portion between the rows connecting the plurality of column body portions 91 serving as the cooling water passage. A pair of fin portions 93 are located outside the outermost tube body. In the plate base material 95 of the welded structure thus produced, the peripheral portion welded portion 81 and the inner region welded portion 82 are formed in the same manner as the above-described plate base material 70, and the plate is formed into a boiler water wall. The number of seams 96 in the plate base material 95 is less than the number of seams 71 in the plate base material 70. • The boiler water wall panels manufactured are still transported from the boiler manufacturing plant to the boiler installation site, and the peripheral portion is welded to the peripheral portion of the other plates to be assembled into a furnace casing. Next, another embodiment of the structure of the boiler water wall panel of the present invention and a method of manufacturing the same will be described. The present embodiment can also be described as a modification of the other embodiment described above. When the second embodiment of the structure of the base material of the other embodiment is used, the weld 96 in the base material 95 is described. Also removed. That is, the number of rows of the tube portion 9 1 in the -20-(17) 200821503 seamless-foiled tube-connector assembly 90 as a plate constituent unit of the above-described another embodiment is added to the mother board. The number of rows of the tube portions 9 1 in the material 9.5 is such that the jointless finned tube/connecting unit assembly 90 is not a structural unit of the plate and becomes a structural material of the entire region of the plate. This other embodiment is also useful in the case where the base material is a relatively narrow width (for example, 400 to 60 mm/tube portion 3 to 6). Then, with the improvement of component manufacturing techniques such as hot extrusion, the range of applicable objects can be extended to a wider plate. [Others] In the above embodiment, the jointless finned single tube 60 and the jointless finned tube-joint portion assembly 90 are manufactured by a hot extrusion method, but as a jointless alternative to the i hot extrusion method In the forming method, a method of connecting the tube body and the fins or the connecting portions extending in the axial direction of the tube body in a continuous manner can be manufactured, and a powder sintering method, a sand mold casting method, and a centrifugal casting method can be exemplified. In the above-described embodiment, the peripheral portion welded portion 8 i made of an alloy having a low thermal cracking sensitivity is formed by a build-up welding method, but the covering portion can be formed by another method such as a thermal spraying/melting treatment method. Next, the peripheral portion welded portion 81 can also be formed by this. [Industrial Applicability] The boiler water wall panel of the present invention can be applied to a furnace casing of various boilers including so-called super boilers. Examples of the installation of the boiler include an incinerator and the like. Incinerators for waste incineration power generation equipment are also classified as such. - (18) 200821503 [Simplified description of the drawings] Fig. 1 is a view showing the structure of a boiler water wall panel and a method of manufacturing the same according to an embodiment of the present invention, wherein (a) is a finned tube body (without seams) Side view of the winged single pipe, (b) is its cross-sectional view, (c) is the side view of the base metal (with water plate), (d) is its cross-sectional view, and (e) is the boiler A side view of the water wall panel, (f) is a cross-sectional view thereof. Fig. 2 is a view showing the structure of a boiler water wall panel and a method of manufacturing the same according to another embodiment of the present invention, wherein (a) is a side view of the jointless finned tube-connecting unit assembly, and (b) shows In the cross-sectional view, (c) is a side view of the base metal material (with water path plate body), and (d) is a cross-sectional view thereof. Fig. 3 is a view showing an example of a conventional water-cooled plate segment, wherein (a) is a side view of the metal pipe portion and the metal plate portion, (b) is a cross-sectional view thereof, and (c) is a cross-sectional view of the water-cooled plate segment. Fig. 4 is a view showing another example of the conventional water-cooled plate segment, wherein (a • ) is a side view of the metal pipe portion and the longitudinal fin plate, (b) is a cross-sectional view thereof, and (c) is a cross-section of the fin-shaped pipe body. The cross-sectional view, (d) is a side view of the single-element member for the water-cooled plate segment, and (e) is a cross-sectional view thereof. (〇 is a cross-sectional view of the water-cooled plate segment. [Main component symbol description] 2 0 : Water-cooled plate section (boiler water wall board) 2 1 : Metal pipe part 2 2 · Metal plate part-22- (19) 200821503 23 : Transition part (welding) 30: Flange plate body 3 1 : Metal pipe 3 2 : Longitudinal fin plate 3 3 : Transition portion (welding) 40 : Water cooling plate segment unit member 41 : Self-fluxing alloy coating portion φ 5 0 : Water-cooled plate segment (boiler water wall plate) 5 1 : Interface (welding) 60: Flanged tube body (joint-free finned single tube) 6 1 : Tube portion 62: Fin portion 63: Transition portion (integrally formed) 70: Plate base material (with water plate body) 7 1 : Seam (welding part in the center of the joint) I 8 0 : Boiler water wall panel 8 1 : Peripheral part welded part 82 : Internal area welded part * 90 : Jointless finned tube - Connector assembly ^ 91 : Tube portion 92 : Connection portion 93 : Fin portion 94 : Transition portion 95 : Plate base material (with water plate body) 96 : Seam (welded portion at the center of connection) -23-