標(biāo)題: Titlebook: Magnetic Particle Inspection; A practical guide David Lovejoy Book 1993 David Lovejoy 1993 environment.history.material.nondestructive test [打印本頁(yè)] 作者: deep-sleep 時(shí)間: 2025-3-21 17:20
書(shū)目名稱Magnetic Particle Inspection影響因子(影響力)
作者: Offset 時(shí)間: 2025-3-21 21:14
Book 1993from improvements in instrumentation which has made the measurement of peak values of time varying currents practicable. The major changes have arisen from health and safety and environmental concerns. These involve chemicals and exposure of personnel to air-borne electromagnetic fields and long wav作者: 得罪 時(shí)間: 2025-3-22 01:05 作者: dura-mater 時(shí)間: 2025-3-22 07:01
Basic electromagnetic field theory, which are not widely understood. It must be remembered that while this mathematician’s playground produces a large number of vital results describing fields in their general form, parts of the field and even specific points in the field, the equations and calculations are mathematical expressions of physical effects.作者: Keshan-disease 時(shí)間: 2025-3-22 08:51 作者: 積極詞匯 時(shí)間: 2025-3-22 15:31
The history and basis of the magnetic particle testing method,oke discovered that they coincided with patterns of defects in the surface. In the following 20 years, the foundations of the magnetic particle inspection method of non-destructive testing were laid down. Many people on both sides of the Atlantic Ocean contributed to these firm foundations on which the modern application of the method is built.作者: Flatter 時(shí)間: 2025-3-22 20:42
Equipment for magnetic particle inspection,ng components which are unusually large or which present special problems for magnetization, and throughput is not a serious problem. Standard types of equipment are discussed in section 10.2 and special equipment in section 10.3. There is too a need for special options and accessories in many applications and these are dealt with in section 10.4.作者: d-limonene 時(shí)間: 2025-3-22 23:25 作者: committed 時(shí)間: 2025-3-23 02:29 作者: gospel 時(shí)間: 2025-3-23 08:54 作者: 共同時(shí)代 時(shí)間: 2025-3-23 12:01
Essential magnetic characteristics for magnetic particle inspection,g of magnetic particle inspection beyond the automatic following of a procedure. It is fully appreciated that the introduction of equations and vector mathematics deters many inspectors and operators and for this reason equations have been kept to a minimum and manipulation of vectors avoided.作者: 無(wú)瑕疵 時(shí)間: 2025-3-23 14:13 作者: 去世 時(shí)間: 2025-3-23 21:20
Health and safety in magnetic particle inspection, do not damage our neighbours, in the widest sense of that word, and ourselves. Every activity is covered by general considerations and those which are specific to the task in hand. There is also very great current public awareness of laws governing the safety of the environment, and these are discussed in Chapter 16.作者: DUST 時(shí)間: 2025-3-24 01:55 作者: 配置 時(shí)間: 2025-3-24 04:26
David Lovejoyesentation, each internal node of the tree representing an internal latch of the circuit, the latches specified by the tree itself. The tree specification allows solutions of formidable problems such as algorit978-3-642-27657-6作者: 刀鋒 時(shí)間: 2025-3-24 08:56 作者: conduct 時(shí)間: 2025-3-24 13:26 作者: Frequency-Range 時(shí)間: 2025-3-24 15:53 作者: 抱狗不敢前 時(shí)間: 2025-3-24 20:11 作者: Lipoprotein(A) 時(shí)間: 2025-3-25 01:37 作者: 凹室 時(shí)間: 2025-3-25 07:04 作者: 智力高 時(shí)間: 2025-3-25 08:43
Demagnetization,y. Another common source of difficulty in demagnetization is the equipment available. It is not uncommon to find operators working under great difficulty because they have only 50 or 60 Hz alternating current demagnetizing equipment and the magnetic field was induced by use of full-wave or half-wave作者: Nebulizer 時(shí)間: 2025-3-25 14:20 作者: 多嘴 時(shí)間: 2025-3-25 18:35
Quality control, to admit that anything of their manufacture could be defective is understandable but a little thought on the matter might suggest that the fact that their products are tested should be good for their reputation.作者: scoliosis 時(shí)間: 2025-3-25 23:05
Analysis and measurement of magnetic fields,round a bar magnet or a coil wich is carrying current, as shown in Fig. 1.1. There is plenty of clear visible evidence of activity at the ends of these devices but along their lengths there is little or none.作者: 撤退 時(shí)間: 2025-3-26 01:49
Book 1993l to airborne electromagnetic fields has been current for some years as has discussions to the effects of long wave ultraviolet (UY.A) on human skin. Recommendations as to maximum permit- ted exposures over periods of time to both of these phenomena have been put forward and will doubtless form the 作者: Atmosphere 時(shí)間: 2025-3-26 06:22
f personnel to airborne electromagnetic fields has been current for some years as has discussions to the effects of long wave ultraviolet (UY.A) on human skin. Recommendations as to maximum permit- ted exposures over periods of time to both of these phenomena have been put forward and will doubtless form the 978-0-412-44750-1978-94-011-1536-0作者: hermetic 時(shí)間: 2025-3-26 10:28
The history and basis of the magnetic particle testing method,hat defects in cannon barrels and other iron components could be detected if they were magnetized and then a magnetic compass were passed over them. No particles were used but the principle of seeking leakage fields was used. It was not until the 1920s that the use of magnetic particles for detectio作者: Infirm 時(shí)間: 2025-3-26 12:48
Origins of defects in ferromagnetic materials,a perfect material or a perfect component or structure in the practical world. Taking this as the basis for a definition of a defect is not very helpful as it includes imperfections in the material at an atomic level which cannot be seen even with optical microscopy at one end of the scale through t作者: NOTCH 時(shí)間: 2025-3-26 18:14
Essential magnetic characteristics for magnetic particle inspection,g of magnetic particle inspection beyond the automatic following of a procedure. It is fully appreciated that the introduction of equations and vector mathematics deters many inspectors and operators and for this reason equations have been kept to a minimum and manipulation of vectors avoided.作者: 圣歌 時(shí)間: 2025-3-27 00:18
Methods of magnetizing components and materials for magnetic particle inspection,for the use of permanent magnetism are limited; however, considerable ingenuity has been shown in the use of electric current as a source of magnetic induction. Among the reasons for the need for such ingenuity are the geometry and size of components, bars, sheets and billets of material and the fac作者: 牛馬之尿 時(shí)間: 2025-3-27 03:45
Sources of magnetic fields for magnetic particle inspection,be done by use of permanent magnets in some instances; however, satisfactory performance from such equipment is very restricted. In most applications the magnetic field is induced by use of some form of electric current. This may be by passage of current through the material as by use of a magnetizi作者: 一個(gè)攪動(dòng)不安 時(shí)間: 2025-3-27 06:15 作者: 改良 時(shí)間: 2025-3-27 10:43 作者: 罵人有污點(diǎn) 時(shí)間: 2025-3-27 15:07
Procedures, specifications and documentation,le, and these aspects are discussed in sections 8.2 and 8.3. It must always be remembered that, along with other methods for non-destructive testing, magnetic particle inspection does not ‘fail safe’. If magnetic particle inspection fails to indicate a defect, that defect goes on to be incorporated 作者: COLIC 時(shí)間: 2025-3-27 17:56 作者: 花爭(zhēng)吵 時(shí)間: 2025-3-27 23:36
Quality control,terials, structures and components. It is somewhat surprising that, in many cases, it is regarded as a separate process from manufacture rather than an integral part of the total manufacturing process. While most people seem to think of magnetic particle inspection and other test procedures as metho作者: 伸展 時(shí)間: 2025-3-28 04:54 作者: 退出可食用 時(shí)間: 2025-3-28 09:02 作者: frivolous 時(shí)間: 2025-3-28 13:08 作者: Hallowed 時(shí)間: 2025-3-28 16:28 作者: Bumble 時(shí)間: 2025-3-28 19:23 作者: Tractable 時(shí)間: 2025-3-29 00:35
David Lovejoycessful monograph “Switching Theory” by the same author.Incl.??? In three main divisions the? book covers combinational circuits, latches, and asynchronous sequential circuits. Combinational circuits have? no memorising ability, while sequential circuits have such an ability to various degrees. Latc作者: meditation 時(shí)間: 2025-3-29 05:22 作者: TERRA 時(shí)間: 2025-3-29 09:03 作者: Multiple 時(shí)間: 2025-3-29 12:38 作者: Contracture 時(shí)間: 2025-3-29 16:59
cessful monograph “Switching Theory” by the same author.Incl.??? In three main divisions the? book covers combinational circuits, latches, and asynchronous sequential circuits. Combinational circuits have? no memorising ability, while sequential circuits have such an ability to various degrees. Latc作者: Headstrong 時(shí)間: 2025-3-29 21:00
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