無損檢測工藝規(guī)程磁粉檢驗

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cifi掃edof凍asrec墨ommend訴edby桂thema圣nufact魚urera天ndsho采uldbe仗check碼edby慶settli許ngvol皇umeme塑asurem韻entsa乎ndmai賤ntaine姥datt舍hespe堪cified西conce泡ntrati躍onon斤adail訓ybasi濾s.If弱theco澇ncentr淹ation膚isnot艦maint筍ained紫proper好ly,te淡stres桿ultsc惠anvar筍ygrea雪tly.奇出Theb緣athco爐ncentr飾ation伐shall燭bemai獅ntaine沿dwith喘in1.2計to2.巾4mlp壓er100悼mlof滲vehicl類efor棍nonflu忘oresce脂ntpar鳴ticles初unles辛sothe封rwise鴨specif雪iedby緣thep松articl萄emanu臣factur同er.說嘆柜Bath捕conce咳ntrati霧onis愿normal陜lydet秘ermine慢dbym穩(wěn)easuri夢ngits陷setti耽ngvol好umeth引rough間theus湯eofa項nASTM監(jiān)Pear-泉shaped榜centr喚ifuge金tubew拒itha茶1.5-ml嘆stem(這0.1-ml旁divis鍬ions)推forno押nfluor兄escent幣suspe水nsions百.Befo達resam霸pling,辜runt嘴hesus筍pensio宏nthro原ughth轉(zhuǎn)ereci婦rculat棚ingsy臺stemf借orat粥l(xiāng)east逗30-min胡toas章suret掀horoug荷hmixi呈ngof株allpa墳rticle盼swhic栽hcoul位dhave裕settl染edon敏thesu紀mpscr沃eenan地dalon蟻gthe暫sides那orbot父tomof粉thet族ank.T蜘akea托100-mL冰porti淋onof儉thesu脾spensi搏onfro葵mthe笨hoseo膜rnozz箏leand忠allow機itto劈settl挑efor統(tǒng)approx渣imatel桿y30m齊in.Th椅evolu商meset常tling甩outat敞theb止ottom們ofthe創(chuàng)tube文isind泰icativ曾eoft語hepar家ticle撞concen檔tratio懸nint芝hebat塵h.If布theba筋thcon放centra釘tioni阻slow摩inpar漆t(yī)icle招conten驚t,add社asuf柏ficien慶tamou幣ntof俯partic著lemat野erials逐toob抽taint翁hedes聽iredc押oncent牌ration玩.Ift抖hesus寫pensio兄nish堵ighin酬parti貞cleco記ntent,承adds妹uffici臭entve圓hicle荒toobt慰ainth愁edesi憑redco計ncentr若ation.乖亭Ifth從esett閱ledpa懂rticle搶sappe呢arto折beloo駁seagg漸lomera店tesra狐thert稈hana柳solid辣layer,且take敏aseco逐ndsam洽ple.I飛fstil雅laggl預omerat漁ed,th懲epart捉icles扇mayha爛vebec班omema趣gnetiz洪ed,re文place凱thesu段spensi奸on.窯6.Ma頁gnetiz滅ation閃Proced忌ure川6.1Y氏okeTe高chniqu奴e樹榨Thed鉤irect,雞alter芳nating揉curre膜ntele救ctroma紋gnetic纖yokes猜orpe抗rmanen納tmagn劈etyok漢essha尊llbe付usedf朱orloc秀alized填magne騰tizati茅onto濱forma準longi滴tudina迅lmagn它eticf托ield.混吊Thea編lterna緒tingc域urrent溉elect臨romagn堵eticy搞okesh完allha微veal駝ifting照power霜ofat吃least腦毅10lb英.(尋4.5kg紡)atm旋aximum組pole念spacin濁g.裝Thedi它rectc嚷urrent哄elect應(yīng)romagn幟eticy雄okesh敞allha舊veal籌ifting要power真ofat使least屋懷40lb鄰.(詠18.1kg瀉)att君hemax毅imump艘olesp柏acing.織留Thef旺ields磁trengt己hofy犬okesc礙anbe霜empiri奪cally倡determ姑ined紹5.1清桐檢驗介質(zhì)是具蝴有高導磁率和滅低頑磁性的細月鐵磁粉，其尺弱寸和形狀必須雷易于形成磁粉框顯示。掀5.2巧應(yīng)使用宜興磁孤通探傷材料公份司生產(chǎn)的黑磁寸粉鴨HK-1-4胞0侮0?；蛐?5個0昨。喘5.3音正磁懸液的液體厭介質(zhì)必須是變恩壓器油、無味主煤油或水。磁轟懸液的溫度和引工件表面溫度營均不得超過縱135探0辰F斜(繩57詳0山C辮)累柄。岔5.4犁禮濕磁粉懸浮液冰的濃度頑膊蛋磁懸液濃度應(yīng)丸按制造廠推薦姓，用沉淀量值易驗證，務(wù)使日骨常濃度一定。材濃度不當，會默大大影響探傷襯結(jié)果。改邪響除制造廠另有造規(guī)定外，非熒衛(wèi)光磁粉懸浮液國濃度應(yīng)為巖每決100奮mlml慚的水平。撞甜限槽中磁懸液濃斷度通常是缺用煤AST鳥M決的梨形離心管熟測定其沉淀值率來確定的，對懼非熒光磁粉懸講液癥為臨1.5斑ml舒旬芯柱繡(芽0.1ml暢刻始度溉)惰的沉淀柱；在梯取樣以前，將棉懸浮液在再循西環(huán)系統(tǒng)中至少膊流禁動治3懂0檢分鐘，以保證加所有磁粉的完漁全混合，否則未磁粉可能在油粉盤濾網(wǎng)和沿槽鋒的壁或底沉淀凱下來，從軟管躍或管嘴更取逐100綱ml寺懸浮液并使它名沉淀大漸約禁3蠻0偶分鐘，大管底痰沉淀的體襯積養(yǎng)熱是槽液磁粉濃遙度指示值；假常如磁懸液中磁鬧粉濃度大低，株加足夠量的磁逐粉以獲得所需姿濃度；假如磁輩懸液中磁粉濃挪度大高，則加謙足夠的液體介缸質(zhì)以獲得所需泡濃度。述嫁向假如沉淀磁粉仇表現(xiàn)為松散的速團塊，而不是膛緊密的敷層，勇則應(yīng)作第二次出取樣試驗，如鈴果還是團塊，尋說明磁粉可能辱已被磁化，這漲時需更換懸浮瘋液。釣6.霉菊磁化過程竊6.1染柔磁軛法維杜寸可采用直流的蝶、交流的電磁嶺軛或永久磁軛姨、來磁化一個姓局部區(qū)域、形冰成一個縱向磁斤場。勿須麥交流電磁軛的唯提升力應(yīng)至少班在兩極間距離哪最大時為癥1輛0撇磅腰(4.掃5岔公斤斤閥)屯。缸爹湖經(jīng)驗磁軛式磁格場強度可測量嗎它勻NJBST灑Co.,Lt同d.愁QCD-01巡4誼Rev.:0閃Page:儀5揪of8煎Title:灌PROCE未DUREF瘦ORMAG噴NETIC錫PARTIC峰LEEXA辰MINATI劫ON劈龍bymea豬suring崗itsl椅ifting革power椅.奶Direc按tiono副fmagn銀etizat外ion:A溫tleas丹ttwo麗separa膨teexa賭minati意onssh距allbe莊carri勿edout勒onea回chare藏a.The捉secon治dexam糞inatio箱nshal噸lbew潑ithth曬eline街sofm刑agneti藥cflux肢appro愧ximate盼lyper皇pendic笑ulart淋othos質(zhì)eused揚fort落hefir法stexa往minati弱onin慌thata渴rea.忽劃Thea村reato菊beex痕amined而shall膝bere濱strict討edto王thear射eawhi杯chis暈equal復to1/4戚maxim偏umpol內(nèi)espac婦ingon東both代sides亂ofthe京line包throug承htwo下poles.川Thep闊olesp拔acing浮shall德atlea若sthav披e獅1in傷.(殊25mm終)overl衣apeac成htime芬.渠7.Ma嫂gnetic盤Field交Stren燥gth子7.1T丈hespe艱cialc窮arbon法steel握/copp辱erpla晚tetyp犯efiel鉆dindi欄cator雁isuse無dtov批erify沈thata侄nadeq歐uatef找ields咽trengt窮hand賢direct旺ionfo摧rthe役surfac土eofp稼artis論obtai驢ned.I飲fthe夢clear尚magnet窯icpar勤ticle納patter啦niss多howno驕nthe冬copper庸plate欄side閃ofthe太field見indic明ator,擋itind擔icates魔that泡adequa兇tefie蒼ldstr嶼ength賤isobt堅ained.標8.Ex壓aminat鑰ionRe鼠quirem恢ents牛8.1S赤urface庸Prepa震ration舉愁Satis噴factor葵yresu牙ltsar學eusua任llyob閑tained眨inth霞eas-w嚼elded,姻as-ro肅lled,騰as-cas申t,or鷹as-for沾gedco箏nditio槍ns.Ho嫌wever,憤surfa嶄cepre架parati話onby船grindi趕ngor桌m(xù)achin深ingma證yben世ecessa沙rywhe秒resur鼠facei江rregul密aritie帝scoul辨dmask剩indic通ations掀duet挖odisc沖ontinu現(xiàn)ities.朵去8.1.2倍P凳riort碗omagn俊eticp防articl突eexam毛inatio屯n,the梳surfa蛙ceto辱beexa統(tǒng)mined筑andal雁ladja殊centa創(chuàng)reasw弱ithin艦atlea熊st惱1in閉.(核25mm凡)shal監(jiān)lbed局ryand段free范ofall塔dirt,榆greas撓e,lin瞧t,sca炕le,we蒙lding壟fluxa宣ndspa臥tter,賊oil,o哈rothe跑rextr丸aneous采matte蓬rthat肢could尋inter集ferew別ithth姜eexam絲inatio助n.餡跑Clean訴ingma輩ybea脫ccompl焰ished液using池deterg答ents,診organi派csolv宿ents,梁descal貫ingso稀lution各,pain古tremo屬vers,繡vapor喂degrea羊sing,投sando飄rgrit友blast逼ing,o虹rultr繡asonic拴clean鵝ingme迫thods.君討Ifco狂atings揀arel洞efton胃thep魂artin捏thea挑reabe培ingex慘amined慘,itm狼ustbe譜demon桂strate忠dthat很indic貴ations耗canb滋edete孕ctedt看hrough朱thee癢xistin壤gmaxi驚mumco隔ating爽thickn射essap耕plied.照When染ACyok零etech導nique終isuse萍d,the扎demon眨strati迅onmus果tbei糧nacco債rdance和with租Man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