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leakage test 密封性試驗。

leakey

The alternating current in the alternating current magnetic field leakage testing ( ac - mfl ) is one of the magnetizing manners . the sensitivity is very high to the defect of surface and the near to the surface of the workpiece . it is one of the developing directions of nondestructive testing ( ndt ) domain 交變漏磁檢測技術中的交變是漏磁檢測技術中的一種磁化方式,該技術對工件表面及近表面缺陷具有較高的檢測靈敏度,是無損檢測領域未來主要發展方向之一。

Above all , we discuss the basic theory of magnetic flux leakage testing in this paper and the theory of finite of element . we also introduce the application of the finite element in analysis of electromagnetic and the use of the software of ansys , which is a software about finite element 在本文中首先討論了漏磁探傷的基本原理,有限元分析原理及其在電磁場中的應用,介紹了ansys有限元分析軟件的應用,并對缺陷進行了模擬分析。

In this thesis , first of all , we discuss the basic theory of the two - dimension magnetic flux leakage testing , which is the basis of the design of our magnetic flux leakage testing equipment . we also discuss the mutual relationship between some parameters of the flaw and the magnetic leakage signal 在本文中首先討論了二維漏磁檢測法的基本原理,這是漏磁檢測設備設計的基礎。還簡要地討論了缺陷參數與漏磁信號的相互關系。

Put forward the emphasis of preparing work and trial run before a new built pet plant start - up , including working out the network plan , washing the equipment and pipe system , calibrating the plant , and making the leakage test , the linkage and feeding trial run 摘要提出了新建聚酯裝置投產前工作準備和試車工作的要點,包括網絡計劃的編制,設備及管道系統的清洗,裝置的標定,泄漏試驗,聯動試車及投料試車。

This test shall be carried out after all structural tests have been completed and prior to the heat leakage test . for the said refrigerated containers , the air leakage rate , expressed hi standard atmospheric conditions is 2 . 38 m3 / h , not exceed 10m3 / h 機械式冷藏集裝箱的制冷性能實驗( 1 )的測試結果為箱內平均溫度: - 18 . 03 ;箱外平均溫度: 38 . 02 ,試驗條件滿足規范要求。

Based on the simulation analysis of plural cracks , the theoretical basis of flaw in screw detected by alternative magnetic flux leakage testing method was established , the detection was decomposed to four phases and the signal characteristics of each stage were essayed 摘要在參考國內外對相鄰缺陷漏磁信號進行仿真分析的基礎上,建立了螺紋中缺陷檢測的理論基礎。

It is important that acoustic test is applied to valve leakage testing and evaluation . quadrupole sources come from leaking gap . dipole sources occur in complex structure valves through analyzing leak in valves 通過對承壓閥門內漏過程分析表明,在閥門湍流流場中,因為有泄漏縫隙的存在,必將產生四極子聲。

The heat coefficient changing of the heater and reheat ; c . the leakage test of the working substance ; d . the damage test for the heat pipes of the radiator , were taken 分析了穩態參數,完成了:吸熱器熱負荷擾動試驗、吸熱器及回熱器換熱系數變化試驗、工質泄漏試驗、輻射器熱管損壞試驗等多個仿真實驗。

We research the design of magnetization device and recognition of vice . we also research programming of the monitor system of magnetic flux leakage testing equipment for the steel plate 利用ansys有限元分析軟件對磁路設計,缺陷的模式識別進行了分析研究,并設計了超大管徑鋼管漏磁探傷監控系統。

Non - destructive testing of steel tubes - part 5 : automatic full peripheral magnetic transducer flux leakage testing of seamless and welded except submerged arc welded ferromagnetic steel tubes for the detection of longitudinal imperfections 鋼管的無損檢驗.第5部分:檢測縱向缺陷用無縫和焊接

And we design a monitor system of steel tube testing based on the principle of two - dimension magnetic flux leakage testing , in which the steel tube testing is automatic and intellectualized 設計了一個基于二維漏磁檢測原理的可視化鋼管檢測監控系統,從而使鋼管的檢測實現了自動化、智能化。

Non - destructive testing of steel tubes - part 4 : automatic full peripheral magnetic transducer flux leakage testing of seamless ferromagnetic steel tubes for the detection of transverse imperfections 鋼管的無損檢驗.第4部分:檢測橫向缺陷用無縫鐵磁鋼管的自動全周邊電磁變換器漏磁檢驗

Non - destructive testing of steel tubes - automatic full peripheral magnetic transducer flux leakage testing of seamless ferromagnetic steel tubes for the detection of transverse imperfections 鋼管的無損檢驗.橫向缺陷探測用無縫鐵磁性鋼管的自動全周界磁力換能器磁力線滲漏檢驗

Carry out regular leakage tests on concealed piping and check for overflowing tanks , waste , worn tap washers and other defects in the water supply system 定期檢查隱蔽水管,以防漏損,檢查內部供水系統,修理有毛病的水箱、水頭及其他的供水設施。

The research put emphases on acoustic emission testing and magnetic flux leakage testing and tried to establish the series standard of the two methods above 其核心是圍繞聲發射檢測和漏磁檢測,意旨在建立聲發射和漏磁檢測的方法和標準。

The alternative magnetic flux leakage testing system based on a3515 hall clement was introduced , including its composition and operation 摘要介紹基于a3515霍爾元件的交變漏磁檢測系統的設計,包括檢測系統的組成和測試方法。

Abstract : by leakage tests under different weather , it established a air - tight mathematical model for a missile launch container 文摘:通過對導彈貯運發射箱在各種使用環境下的氣密性分析,建立了發射箱可靠貯存數學模型。

A visual monitor system of high - speed magnetic flux leakage testing equipment for the oil and gas tube has been studied in this thesis 本文對整個“油氣管道高速漏磁檢測可視化系統”做了探討。

Fabrication and inspection method for high pressure urea equipment ammonia leakage test the method for high pressure urea equipment 尿素高壓設備制造檢驗方法.尿素高壓設備氨滲漏試驗方法