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南海石化球罐項(xiàng)目檢測(cè)方案與工藝中英文對(duì)照-文庫吧資料

2024-09-21 11:36本頁面
  

【正文】 negatives for weld can be made start from 1, 2, 3?? , it can be start from 0176。膠片在暴光期間應(yīng)在受檢區(qū)域上固定穩(wěn)妥,必要時(shí)另外附加磁鐵 固定?!? 0176。 → 180176。焊縫的底片順序號(hào)宜從上至下為 1, 2, 3??,環(huán)焊縫的底片順序號(hào)宜從 0176。 Lineation: Mark on the film location of each negative with marking pen, and sign the No of each negative. The line should be vertical with the edge of the weld, the interval of outboard should be 260mm, the inboard length can get according to the equation of 260*[( RT) /R]. R means outside diameter。 so the mark of the first negative must be intact, the other negatives can has no date, center or thickness mark. But repair and makeup films should record pletely. 3)劃線在工件上對(duì)每張底片的布片片位用記號(hào)筆進(jìn)行劃線,并標(biāo)記出每張底片的編號(hào),標(biāo)線應(yīng)垂直標(biāo)記在焊縫邊緣,外側(cè)間 隔 260mm,內(nèi)側(cè)長度按 260*[( RT) /R]。但補(bǔ)片及返修片應(yīng)標(biāo)記齊全。單壁單影單張透照時(shí),定位標(biāo)記應(yīng)置于射線源側(cè)。 should be put on the inspected weld, and the steel wire should be vertical with the inspected weld, the lay location should be 1/4 of the film length, the filament expose to the outer. When is on the outerwall of the spherical tank, lay F on the rightbelow or the leftbelow corner of the coarse thread, the should close up to the source side the whole way. Undefinition of geometry 對(duì)于 r射線全景暴光,無論單源還是雙源都能滿足 JB473094 標(biāo)準(zhǔn) .采用局部 x 射線或γ射線透照返修片或重拍片時(shí),為保證幾何不清楚,焦距不得小于 600mm. 9 For rray panorama exposure, both the single source and double source can meet with the JB473094 standards, and when adopt local xray or γ ray do inspection, the focus can’ t be less than 600mm in order to ensure the undefinition of the geometry. 定位標(biāo)記,識(shí)別標(biāo)記,劃線和布片 Orientation mark, identification mark, lineation and disposal of the film 1)定位標(biāo)記:透照時(shí)焊縫透照部位應(yīng)有塔接標(biāo)記↑,塔接標(biāo)記起確定有效評(píng)定長度的作用。 . Lay a on the circle direction of the polar per interval of 90176。下極板內(nèi)壁部位至少放置二個(gè)象質(zhì)計(jì),并在此位置做對(duì)比實(shí)驗(yàn)。上下極帶環(huán)焊縫方向每隔 90176。 Use Fe6/12 Ⅱ 2)球罐外壁的赤道帶上每隔 90176。 Material: In the whole project, we use AGFA C7 type films, use 300*100* screen when adoptγ source, use 300*100* screen when adopt xray, use the medicine of Tianjin Ⅲ . 透照布置 Peration disposal 一次透照長度 260mm,塔接長度兩端各為 20mm采用磁性暗袋,標(biāo)記帶標(biāo)記鉛字。 the Ir192γ can be used also. 檢測(cè)設(shè)備及材料 Inspection instruments and materials 1)材料設(shè)備; DLVA型γ射線探傷 機(jī) 2臺(tái), 300KVX射線機(jī) 2臺(tái),觀光燈 2臺(tái),黑度計(jì) 1臺(tái),使用狀況應(yīng)良好,并符合有關(guān)標(biāo)準(zhǔn)的規(guī)定,所有計(jì)量器具應(yīng)在檢定有效期內(nèi)使用。也可使用Ⅰ r192γ源進(jìn)行檢 測(cè)。 Inspection occasion: Do RT 36 hours after welding and the shape, dimension and visual check is eligible. 2)檢測(cè)任務(wù)量及標(biāo)準(zhǔn);球殼板所有對(duì)接焊縫,標(biāo)準(zhǔn)檢測(cè)等 級(jí)為 AB 級(jí),符合 JB473094標(biāo)Ⅱ級(jí)為合格。其中 RTⅡ級(jí)持證至少 2人。 If the repair films is few, use xray or γ ray to do local peration on the repaired weld。 Use Ir192γ ray doublesource exposure to do unitary exposure on the weld of 3000 m179。. 對(duì)于 3000 m179。 Use Ir192γ ray panorama exposure to do unitary exposure on the weld of spherical tank with the volume 1300m179。和 1500m179。 When work on spot, the original record should be done timely and truly. Make sure give specific sign on the objection location, and feed back the result to the installing party timely. 及時(shí)提出檢測(cè)報(bào)告,并交付安裝單位,對(duì)于 RT,由于不能馬上 出具完整的檢測(cè)報(bào)告,但必須及時(shí)地提交檢測(cè)結(jié)果給安裝單位。作好工件上缺陷位置的標(biāo)記。 The practice operation on locale should be occupied by inspector who is level Ⅱ , and it also can be operated by inspector who is level Ⅰ when it is in the direction of inspector of level Ⅱ 。 Organize and get the inspection instruments and material into the worksite. For RT inspection, fulfill and draw the safety scope, and also should inform of responding department ahead. 確定具體檢測(cè)時(shí)間及工藝卡 Confirm the frondose inspection date and technics cards 檢測(cè)實(shí)施程序 Implementation procedure of inspection 。 Arrange relative certified inspector get to the locale, check the condition of construction environment, condition, safety measure, water, power, lighting. 組織檢測(cè)的設(shè)備,材料進(jìn)入現(xiàn)場(chǎng)。 Commitment can be valid only after the signal of deputy party and the checker of the installing party when the visual check result can be up to the surface requirement of the responding methods. 6 安裝單位應(yīng)提供檢測(cè)工程任務(wù)的施工網(wǎng)絡(luò)計(jì)劃,以便檢測(cè)單位γ源的預(yù)定及人員材料的準(zhǔn)備。 The installing party must put forward written inspection task mitment to the inspection party on the condition of having responding inspection methods. 委托書應(yīng)包括具體的檢測(cè)方法、等級(jí)、合格級(jí)別、檢測(cè)時(shí)間及相關(guān)技術(shù)要求。 The principal for NDT inspection of spherical tank must have RT or UT level Ⅲ certificates. RT評(píng)片人員校正視力不的低于 ,并要求距離 400mm能讀出高 ,間隔 一組印刷體英文字母。從事γ射線探傷的人員還應(yīng)持有當(dāng)?shù)匦l(wèi)生防疫,勞動(dòng)安全部門頒發(fā)的安全防護(hù)證書。 All the inspector who engage on NDT of sphere tank should have responding certificates of boil pressure vessel that is issued by quality technique supervise bureau. The quantity of inspector who has level Ⅱ certificates for each inspection methods should be at least 2 personnel. Ⅰ級(jí)無損檢測(cè)人員可在Ⅱ級(jí)或其以上級(jí)別人員的指導(dǎo)下,進(jìn)行相應(yīng)的無損檢測(cè)操作并記錄檢測(cè)數(shù)據(jù),整理檢測(cè)資料。 after the resistpression test is eligible, do 100% MT on the span of outboard weld. For the takeover that is installed onsite, strengthen the fillet welding. Do 100% MT on the buttwelded seam of the support. 5 Requirement for NDT inspector 凡從事球罐無損檢測(cè)的人員,須持有質(zhì)量技術(shù)監(jiān)督部門頒發(fā)的鍋爐壓力容器無損檢測(cè)人員相應(yīng)的資格證書。 Do 100% RT and 100% UT on the buttwelded seam of all material bodies, do 100% RT on all the welder examine test board and jointing product test board after welding. Do 100% MT on buttwelded seam before heat treatment。熱處理前,所有的對(duì)接焊縫 100﹪ 進(jìn)行 MT 檢測(cè),壓力試驗(yàn)前所有球殼板外側(cè)對(duì)接焊縫 100﹪ MT,耐壓試驗(yàn)合格后,對(duì)外側(cè)焊縫全長的 100﹪ 進(jìn)行 MT檢測(cè),現(xiàn)場(chǎng)安裝的接管,加強(qiáng)板角焊縫。 The butt welding of tank body plate, after back chipping, 100% PT inspection should be carried out。 When do spotcheck on the thickness of body, the measured thickness can’ t be less than the value that is gained by the nominal thickness decrease the minus windage of armor plate. The spotcheck quantity should be the 20% of the body, that means 4 for equator of each sphere tank, and 2 for strip board of each pole. The quantity of inspection point can’ t be less than 5 each board, the measured value of each point should be the average of three measured values. Wh
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