【正文】 an spin forming closely related, therefore the operator must be processed according to choose suitable mold, at the same time, because of the shape of the mold and the surface condition of the quality of the workpiece has a great influence, therefore, before processing and machining process must on the mold for full inspection. (2) according to the process card requirements, confirm wafer, pressure drum or 9 preload semifinished instruction number, specifications, quantity of material, pliance, and check the quality of surface and end with no defect, abnormal timely and on the procedures of contact, and in a timely manner(3) check the semifinished end is smooth, with or without notch, crack, surface has no cutting or welding slag, and shall inspect the weld seam is higher than that of base metal, weld ends whether spatter, weld end grinding smooth, there is no crack. [7] (4) pressure drum or to the press after the finished product, must check for folding, cracking, crack is not conducive to the spinning processing defects. (5) for stainless steel workpiece, through to the pickling method of decontamination. (6) according to the process card selection of mold, general small arc r size requirements as a basis for selecting the internal wheel. (7) according to the different material, thickness of plate and sheet rebound, selection is slightly smaller than the internal wheel circular arc R. (8) for the special requirements of the product, according to its shape design inside the wheel, confirm the mold surface, good polishing processing. (9) spinning processing, in order to prevent scratching and improve the processing performance, suitable lubricant ( grease ) to prevent process heating head appears on the surface of hot cracks and scratches, can also prolong the service life of die. (10) the spinning process, should be considered a workpiece shaping and timely for pressure adjustment. (11) after the molding process, deal with the size, shape, thickness, surface quality inspections, confirmation. (12) molded product with the card with the transfer process to the next process ( in the process card signed their name ) by the procedures under the inspector or monitor check before. process The Essentials (1) groove process is a head of the data ( including circumference, total height) to achieve JB/T4746 standard key process. [1] (2) groove is in order and cylinder head connection time, make welding more thoroughly. (3) the main groove cutting process and cutting process tools, is the use of plasma cutting. (4) cutting, according to the card on the technological requirements, determine groove type ( inner groove, outside the mouth, X groove ) and determine the groove angle. 10 (5) the groove before the head splashing agent applicator. (6) groove when the first test slope, then a protractor measuring angle, identified in the tolerance range, after adjustment, the whole slope. The operation standard (1) according to the process card to find real, order confirmation No., specification, material, batch number, quantity and check whether the workpiece has a drum kit, crack, delamination, wrinkle, and whether the loss of a round, found problems in a timely manner to contact, processing, the plate thickness of more than 8mm, is suggested to lose the round groove, the following 6mm, tooling plate pressure is groove. (2) stainless steel head, should be in the groove wall smearing splash front head agent, prevent groove, slag spout to head on the wall. (3) head onto the beveling machine before, first confirm the head weight, based on the weight of suitable sling, sling safety inspection. (4) head onto the groove machine, beveling rotary table adjustment screw rod, with a center adjusting position, rotating table, is aligned to the center. (5) groove, according to technology card height and height tolerance groove height ruler to draw lines, confirm the high line, the slope slope, should first slope flat groove, and then the slope groove. (6) outside the mouth or the inner groove angle should be controlled within177。 （ 1）手工焊主要用于碳鋼 36mm 板材的焊接。焊劑碳鋼常用的是 HJ431，不銹鋼常用的是 HJ260,。 （ 2）有無焊接試板，坡口 切割質(zhì)量能否達(dá)到要求，材料表面有無明顯缺陷，如發(fā)現(xiàn)異常要及時反應(yīng)。 （ 6）焊工持《焊接工藝》與《焊接記錄》領(lǐng)取焊材，焊材二級庫處進(jìn)行登記，領(lǐng)用的焊劑現(xiàn)場放量不得超過 4 小時，否則要放回烘箱繼續(xù)進(jìn)行重新烘干。 d、當(dāng)焊件溫度低于 0℃（任意板厚）時必須預(yù)熱到 15℃以上才能進(jìn)行焊接。 b、采用碳弧氣刨清根時，應(yīng)按要求選用碳棒直徑。 [3] d、清根后，復(fù)合鋼 CrMo 鋼，手工焊及板厚δ n≥ 30mm 的焊縫應(yīng)進(jìn)行 PT 檢查。 c、不去除余高的焊縫。 [4] （ 12）焊接內(nèi)部返修，返修程序：缺陷定位→缺陷去除→ PT 檢查→焊接→去除焊縫余高→ PT 檢查。同樣沖壓也是封頭的開裂，減薄出現(xiàn)最多的工序段。 （ 3）溢流閥 用于控制控制壓機(jī)的整體壓力，防止圓片在壓制過程中發(fā)生撕裂。 （ 2）對照工藝流轉(zhuǎn)卡上的工藝要求，換上對應(yīng)的一套模具，且用量具確定所選用的模具尺寸和要壓制的圓片尺寸吻合。 沖壓作業(yè)標(biāo)準(zhǔn) （ 1）對照任務(wù)單，確認(rèn)實物與工藝卡是否一致，根據(jù)工藝卡確認(rèn)被加工工件的數(shù)量，材質(zhì)、規(guī)格、爐批號等要素，同時檢查圓片端部有無裂紋，毛刺，打磨是否符合要求，圓片是否有倒角，是否正面朝上等，有特殊要求時，發(fā)現(xiàn)問題則及時聯(lián)絡(luò)。 [6] （ 5）安裝上下模具，視情況加入模具墊塊，對圓片的內(nèi)外表面涂潤滑油，涂抹范圍為頂端向里 200300mm，涂抹應(yīng)均勻，上下模具等都要涂勻。 壓鼓操作 壓鼓工序和沖壓工序是同一步驟的工序，沖壓工序范圍φ 159φ 1900mm 而壓鼓工序的范圍是φ 1600φ 4800mm。 （ 2）支撐座 固定下模頭與上模頭的中心在一條直線上。 壓鼓機(jī)操作步驟 (1) 首先承接了下料工序的流轉(zhuǎn)卡后，找到對應(yīng)下好的圓片。 (5) 在壓制完成后，用已準(zhǔn)備好的模板進(jìn)行比對。 （ 2）操作者接到工藝卡后，仔細(xì)看清工藝卡，根據(jù)工藝卡核對實物，確認(rèn)該實物的指 令號，單件號，材質(zhì)。 [1] （ 4）壓制前須仔細(xì)檢查圓片的質(zhì)量，無焊縫圓片端部是否光滑，有無缺口，表面有無切割的熔渣和缺陷。 （ 8）壓制前必須清除內(nèi)外表面一切雜物，以防有麻點出現(xiàn)。檢查表面質(zhì)量，檢查端部及焊縫端部是否光滑（必要時打磨出禮）。 （ 2） 托輪 同樣也是連接和成型輪一樣的模具，旋壓時在封頭外側(cè)，與成型輪相 切。 旋壓的操作步驟 （ 1）承接壓鼓工序的流轉(zhuǎn)卡，根據(jù)流轉(zhuǎn)卡確定要旋壓的相應(yīng)的封頭。 （ 5）在旋壓的過程中要觀察成型 輪與托輪的相對位置，且不斷用模板就行比對。 （ 3） 檢查半成品的端部是否光滑，有 無缺口，裂紋，表面有無切割或焊接熔渣，同時須檢查焊縫打磨是否高于母材，焊縫兩端是否有飛濺物，焊縫端部打磨是否光滑，有無裂紋等。 (7)根據(jù)不同的材質(zhì)，板厚及鋼板的反彈情況，選用略小于圓弧 r 的內(nèi)部輪。 (11)加工成型后，應(yīng)對尺寸，形狀，板厚，表面質(zhì)量等進(jìn)行檢查，確認(rèn)。 （ 3）坡口主要的切割工序和下料工序工具一樣，都是利用等離子切割。 坡口作業(yè)標(biāo)準(zhǔn) （ 1）根據(jù)工藝卡找到實物，確認(rèn)指令號，規(guī)格，材質(zhì)，爐批號，數(shù)量等并檢查工件是否有鼓包，裂紋，分層，皺折等缺陷，以及是否失圓，發(fā)現(xiàn)問題及時聯(lián)絡(luò)，處理，對 于板厚 8mm 以上，宜先修失圓后坡口， 6mm 以下時，用工裝板壓正再坡口。 （ 5）坡口前，根據(jù)工藝卡要求的高度和高度公差劃出坡口高度線，用直尺確認(rèn)高度線，坡內(nèi)坡時，應(yīng)先坡平坡口，然后再坡內(nèi)坡口。 （ 8）合格的封頭將熔渣等打磨去除并清理封頭內(nèi)部的熔渣，隨流轉(zhuǎn)卡一起流轉(zhuǎn)至下道工序（并簽上自己的姓名）由下道工序檢驗員確認(rèn)方可。 （ 4）檢查拋光情況，適當(dāng)進(jìn)行返工。 (4)將封頭吊到工作臺上，調(diào)整中心，同時要保證封頭的上口基本處于水平（ 05 偏離）。