【正文】 on and certification of NDT personnelEN126803：鑄造超聲探傷第3局部:球墨鑄鐵/FoundingUltrasonic examination part 3: Spherical graphite cast iron castings.ISO 85011：外表粗糙度/visual assessment of surface cleanliness993062：超聲波設(shè)備的校準(zhǔn)/Ultrasonic equipment calibration and verificationEN12668－1：無(wú)損檢測(cè)－超聲設(shè)備的特點(diǎn)和驗(yàn)證－第1局部：儀表。超聲波探傷通用規(guī)程UT General Specification17/17 Material: ENGJS40018ULT REFERRENCE: EN 126803 檢驗(yàn)規(guī)程內(nèi)容： Content 適用范圍 / scope本標(biāo)準(zhǔn)是鑄件的檢驗(yàn)規(guī)程和驗(yàn)收標(biāo)準(zhǔn)。本標(biāo)準(zhǔn)覆蓋檢驗(yàn)區(qū)域。EN 126681：Nondestructive testing Characterization and verification of ultrasonic examination equipment Part 1: instruments.EN12668－3：無(wú)損檢測(cè)－超聲設(shè)備的特點(diǎn)和驗(yàn)證－第3局部：設(shè)備組合。EN 12223：None destructive testing – Ultrasonic examination Specification of calibration block .NDT人員至少應(yīng)獲得一個(gè)下述標(biāo)準(zhǔn)證書(shū)的認(rèn)證：NDTPersonnel must be qualified to one of the following certification standards: GB944599：中國(guó)機(jī)械工程無(wú)損檢測(cè)學(xué)會(huì)無(wú)損檢測(cè)人員資格及鑒定/nondestructive testing institution of the Chinese mechanical engineering society qualification and certification of NDT personnelEN473 ： NDT 無(wú)損探傷試驗(yàn)人員的資格和資格證總那么/ qualification and certification of NDT personnel—general principles.SNTTC1A：無(wú)損探傷人員資質(zhì)/ qualification and certification of NDT personnel根據(jù)EN 473 或ASNT SNTTC1A的規(guī)定，所有無(wú)損試驗(yàn)的檢驗(yàn)員，都要經(jīng)過(guò)培訓(xùn)到達(dá)2級(jí)的資質(zhì)水平。供貨方的3級(jí)人員，應(yīng)定期培訓(xùn)自己的NDT工作人員。Prior to UT the surface quality of the ponent must reach Sa 2 1/2 in accordance with ISO 85011.未經(jīng)機(jī)加工的粗糙外表應(yīng)根據(jù)所需的檢查要求進(jìn)行打磨。All surfaces to be inspected shall be free of dross, scale, dirt and other foreign matter that may interfere with the inspection.應(yīng)根據(jù)所述的零部件適用質(zhì)量標(biāo)準(zhǔn)進(jìn)行超聲波探測(cè)評(píng)估。增益，須能夠在一個(gè)至少為80dB的范圍內(nèi)進(jìn)行調(diào)節(jié)，調(diào)節(jié)的最大差級(jí)為2dB，測(cè)量精度為1 dB；gain, adjustable in 2dB maximum steps over a range of at least 80dB with measuring accuracy of 1dB。timebase and vertical linearities less than 5% of the adjustment range of the screen, the horizontal linearity shall be better than 1%。探頭SEB200 (MSEB2)用于鑄件壁厚0~200mm處，探頭B2S(MB2S)用于鑄件壁厚200~500mm處。Following probe head must have at least one to be used: SEB200 ( MSEB2) and B2S ( MB2S) or have a same characteristic probe head. The probes of SEB200 (MSEB2) are used for the casting thickness of 0~200mm. The probes of B2S ( MB2S) are used for the casting thickness of 200~500mm. First use the probe of SEB200 and B2S for inspection. If needs to identify the actual borderline of the defects, use the probes of MSEB200 and MB2S. 聲束直徑的補(bǔ)償/ the pensation of diameter of sound beam為了判定一個(gè)缺陷的大小是“可測(cè)量〞還是“不可測(cè)量〞，聲束的直徑可以進(jìn)行補(bǔ)償。聲束直徑的補(bǔ)償只能被用在不可測(cè)量缺陷的局部。The values for standard probes mentioned in Table 1 may be used.聲程〔mm〕Sound pathSEB2聲束直徑〔mm〕Diameter of sound beam for SEB2MSEB2聲束直徑〔mm〕Diameter of sound beam for MSEB2B2S聲束直徑Diameter of sound beam for B2S＜201552060151560120202512表 耦合劑/ couplant使用超聲波漿糊。Ultrasonic equipment calibration and verification must be carried out according to present 993062 standards.標(biāo)準(zhǔn)參考/NORMATIVE REFERENCESEN12668－3 無(wú)損檢測(cè)－超聲設(shè)備的特點(diǎn)和驗(yàn)證－第三局部：設(shè)備組合。EN 12223 None destructive testing – Ultrasonic examination Specification of calibration block .設(shè)備/EQUIPMENT參考試塊K1 DS/EN 12223 Reference block V1 DS/EN 12223 no. 2572參考試塊K2 DS/EN 27963〔〕Reference block V2 DS/EN 27963 no. 5043422274 (it is available in two widths 12,5mm and 20mm)參考試塊TIF〔長(zhǎng)橫孔試塊〕Reference block TIF no. 061316測(cè)試范圍/ SCOPE OF THE TEST新的設(shè)備和探頭組合最初使用時(shí)，必須對(duì)它作一個(gè)根本的測(cè)量，并且記錄在登記簿上。For test points where a value is achieved, note the value. For the rest of the points, sign for performing the task.探頭必須每工作日校驗(yàn)，對(duì)于測(cè)定信噪比和脈沖持續(xù)時(shí)間距離上一次使用每周一次已是足夠的。The user test of probes must be performed daily. For establishing a signal to noise ratio and pulse duration a weekly t