【正文】 to or less than 3 times of width. (4) 任何有問題或可疑的顯示應(yīng)重新檢驗(yàn)，確定它們是否計(jì)為缺陷。Any doubtable indication or indication in question should be rechecked and determine if they are defects. 驗(yàn)收標(biāo)準(zhǔn)/ Acceptance standard(1) 所有被檢驗(yàn)的表面不應(yīng)有計(jì)為缺陷的線性顯示。All inspected surfaces should not have linear indication that should be repaired.(2) 所有被 。All inspected surfaces should not have round magnetic mark that is more than and should be repaired. (3)所有被檢驗(yàn)表面，在同一直線上。All inspected surfaces ,there is no 4 or more round marks aligned and separatet by at least (from border to border)that should be repaired. (4)缺陷的顯示可能大于引起顯示的缺陷。然而，顯示的尺寸是驗(yàn)收評定的基礎(chǔ)。Indication of defect may be bigger than the defect, but we can appraise the defect on basis of the indication. 8 焊縫的修復(fù)規(guī)則/ Rules of weld repair 焊縫的修復(fù)操作應(yīng)與焊接產(chǎn)品的要求一致。同一處允許兩次修復(fù)，對于多于兩次的修復(fù)，修復(fù)者在提出關(guān)于連續(xù)修復(fù)的合格的可行性報告之前不要繼續(xù)修補(bǔ)，重復(fù)修補(bǔ)亦如此。Weld should be repaired in accordance with requirements for the welded piece. At same place, two times of repairs are permissible. For more than two repairs, manufacturer must not continue to carry out before a report concerning the causes of these consecutive repairs has been drawn up. The same holds true in the case of repeated repairs. 當(dāng)修復(fù)焊接工藝與原來的焊接工藝不一致時，必須對此工藝進(jìn)行認(rèn)證。When repair process is different from previous one, qualification for the new process should be done. 當(dāng)缺陷以鏟刨或打磨除去且隨后不需補(bǔ)焊時，修磨的區(qū)域應(yīng)平滑地過渡到周圍的表面， 避免尖銳的凹口 、裂隙或棱角。After defects have been removed by arc air gouging or grinding that it is not necessary to be repaired area of grinding should be smoothly transited to ambient zone. There are no sharp concavity,edges and corners. 對于要修補(bǔ)的區(qū)域，先由電弧氣刨清整，然后用砂輪磨光底部，用適當(dāng)?shù)姆椒▽υ搮^(qū)域進(jìn)行檢驗(yàn)，確認(rèn)缺陷清除或減小到合格尺寸范圍內(nèi)后進(jìn)行焊接。焊完后，應(yīng)進(jìn)行焊縫級別要求的檢驗(yàn)，并必須用發(fā)現(xiàn)此缺陷的檢驗(yàn)方法進(jìn)行檢驗(yàn)。 Areas to be repaired should be cleaned by arc air gouging. Bottom of the areas should be ground with sand wheel, and checked by PT or MT to confirm if all defects have been removed before welding. After welding, inspections required by the weld class, which can disclose defects having caused the repair should be pulsorily done. TA015000 A13/14 如不進(jìn)行修復(fù)熱處理。修復(fù)前必須進(jìn)行工藝平定。Repair without heat treatment may be carried out qualification should be done for the welding repair process. 9. 焊縫的標(biāo)識/ Drawing symbols 焊縫級別的標(biāo)識/ Classes 所有焊縫級別的符號應(yīng)在一個三角形里用數(shù)字3或4標(biāo)明，所有的關(guān)于焊縫的說 明應(yīng)在圖紙的技術(shù)要求中標(biāo)出。The symbol of the specified class of weld is to be shown by the letter 1,2 3 or 4 inside a triangle, and all general information on the weld is shown in righthand lower corner of drawing. 所有焊縫是同一級別時，應(yīng)在圖紙的技術(shù)要求中標(biāo)明。例如全部2級焊縫，應(yīng)標(biāo)明： 焊縫 2 。All welds are same class, say of class of 2, must be indicated on drawing by “ welds class 2 ”. 大部分焊縫為同一級別時(如三級)，可將不同級別的焊縫標(biāo)注在視圖上，同一級別的焊縫可不在視圖上標(biāo)注，而在技術(shù)要求中注明：未注焊縫全部 3 。Most of welds are of same class, say of class3, must be indicated on drawing by “all welds class 3 , except details 1,2 and 3” etc… On each detail, weld class must be shown in a triangle. 焊縫是不同級別焊縫等級時，每個類型焊縫級別必須標(biāo)在一個視圖或一個詳圖上。If welds are different classes, each type of weld must be shown in a triangle either on one of the views of on a detail. 在焊縫長度或厚度上包括幾個級別的焊縫應(yīng)分別標(biāo)明焊縫級別。(如圖一) 對焊縫的每一項(xiàng)要求應(yīng)在圖紙上清楚地標(biāo)明。If there are several different classes for different length or thickness of one weld, then indication method is as the . Each item should be specified clearly on drawing. 坡口/ Groove 公司內(nèi)設(shè)計(jì)部門繪制的設(shè)計(jì)圖紙，焊縫只有一個簡單的形式標(biāo)明所要求的焊縫的類型 (焊透或有鈍邊)。焊縫參數(shù)由工藝部門確定。In TAH, for drawing prepared by Design Office, welds are represented in a simplified form defining the type of weld to be achieved (full penetration or with root face). Welding parameters are defined by Methodology Department.TA015000 A14/14 對于要求焊透的焊縫不標(biāo)鈍邊，圖紙上不標(biāo)注焊縫尺寸。(見圖2)For full penetration weld: do not show root face and sizes of weld on drawing. 有鈍邊的焊縫/ Weld with root face在圖紙上標(biāo)明此尺寸。坡口面的熔透程度依照使用的焊接方法。例如手工電弧焊(見圖3)，對于重要焊縫鈍邊尺寸，將不反應(yīng)焊后情況，這些焊縫將進(jìn)行背縫清根；普通焊縫，一般不使用背縫清根，根部可能出現(xiàn)熔合不足。Groove penetration will be made according to welding process used, for example, for SMAW (shielded metalare manual welding).The root face size must be shown on the drawing, for the important weld will not show subsequent,these welds will be back gouged。ordinatary weld where back gouging may not be used the root face will show lack of penetration.