A technician performs MPI on a pipeline to check for stress corrosion cracking using what is known as the "black and white" method. No indications of cracking appear in this picture; the only marks are the "footprints" of the magnetic yoke and drip marks.A close-up of the surface of a (different) pipeline showing indications of stress corrosion cracking (two clusters of small black lines) revealed by MPI. Cracks that would normally have been invisible are detectable due to the magnetic particles clustering at the crack openings. The scale at the bottom is numbered in centimetres.Magnetic particle Inspection (MPI) is a non-destructive testing (NDT) process for detecting surface and shallow subsurface discontinuities in ferromagnetic materials such as iron, nickel, cobalt, and some of their alloys.
Supplier: Magnetic particle testing consumables & accessories
Magnex A kind of magnet
Wet Permanent Drum Magnetic Separators Are Used In Dense Media Separation (dms) Plants For The Recovery Of Magnetic Particles From The Dilute Medium. They Must Recover The Maximum Amount Of Magnetic Particles At The Highest Possible Density. A Wet Drum Separator Consists Of A Stationary Magnet Arc Around Which A Drum Rotates. The Drum Is Partially Submerged In A Tank Which Follows The Contour Of The Drum. Qj-ct(s/n/b)wet Permanent Drum Magnetic Separator Is A Wet-type Low-intensity Magnetic Separator With Relatively High Magnetic Field And The Most Efficient Magnetic Separation Equipment With Strong Magnetism For Minerals. Qj-ct(s/n/b) Wet Drum Magnetic Separator Is Ideally Used To Separate Ferrous Particles From Non-ferrous Particles. This Kind Of Magnetic Separators Are Made By Us To Provide Ultimate Protection To Crushers, Grinders, Pulverizers And Allied Equipment And Is Useful For Mining And Ore Dressing Industry, And Can Be Equipped With Semi-conflow(ctb), Con-flow(ctn) And Co-flow(cts) Tanks According To Customers' Requirements. Its Magnetic Induction Intensity Can Be Designed In Accordance With Specific Mineral Properties And Operation Processes. Characterized By Advanced Structure, Light Weight, Reliable Operation, Easy Maintain, Serialized Products And Standardized Parts, The Wet Magnetic Drum Separator Can Meet The Needs Of Plants Indifferentsize. Qj-ct(s/n/b) Applications: (1) For Primary Rough Dressing And Refused Tails, Increasing Recovery Rate And Reducing The Load Of Second-stage Grinding. (2) For Concentration Of Ferromagnetic Minerals, Increasing Ore Grade And Recovery Rate. (3) Used Before High-magnetism Separation To Remove Ferromagnetic Minerals From The Ore And Prevent Magnetic Clogging. (4) For Recovery Of Heavy Media At Coal Processing Plant We Can Design As Your Require
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Supplier: Energy Meter Test Bench, Electromagnetic, Measuring Instruments, Single Phase Energy Meter Test Bench, Three Phase Energy Meter Test Bench
Supplier: Magnetic products, electromagnetic products, magnetic instruments
Services: Testing magnetic products
Buyer: Magnetic products, electromagnetic products, magnetic instruments
Description : Plastic-bonded magnets are particle composites with permanent-magnet powder embedded in a plastic binder. Hard ferrite (HF), various SmCo and NdFeB powders and, to a very little extent, AINiCo alloys are used as magnetic powder. For embedding the magnetic particles, thermoplastic binders as, for instance, polyamide (PA) or polyphenyl sulfide (PPS) and duroplasts like epoxy resins are used. Depending on the material composition and production process, isotropic and anisotropic magnets with differing magnetic and mechanical specifications are available. Since not only the type of magnet or plastic material, but the filling and alignment degree, too, determine the composite`s properties, the outcome is widely varying magnetic parameters and an outstanding variety in types and shapes.
QJ-FK Dry Permanent Magntic Separator for Powder Ore is high-efficiency ore concentration machine newly designed by our company which is widely used to remove, purify or separate materials, allowing them to be of higher values. This kind of dry power permanent magnetic drum separator is characterized by its turbulent magnetic field and high separation factor, advanced structure, light weight, large throughout, reliable operation and easy maintenance. Rely on our elaborative efforts, it becomes great for the dry and arid regions to save water resources and reduce production cost, opening a new way for magnetite mining and utilization. The dry permanent drum magnet separator for fine ore also can be driven by diesel engine, if it is used in region which is short of electricity Apart from existing fixed types, this kind of dry type magnetic drum separator with different magnetic induction intensity and application for different magnetic materials can also be developed according to the specific requirements of customers. The current magnetic separator series are appropriate for the different size mines from large to small. Moreover, we have industrial prototypes and could provide pilot tests at customers' request. Dry drum magnetic separator is mainly used in the following applications: (a) For pre-separation of low-grade ores, to pre-concentrate ores, raise ore grade and reduce production cost. (b) For re-separation of tails, to recover relatively rich tails on the dry slope of tails dam. (c) For magnetic purification of dry fines of pyrite cinder. (d) To effectively remove iron from non-magnetic materials with lower cost. (e) For purification of concentrated fines, to remove lean associated materials and gangue from concentrated iron fines, lead to the grade improvement of fines and increase the technically-added value of products. TYPE Drum Dia*Length(mm) Rotational speed (r/ min) Magnetic induction on drum surface in separation(mT) Upper limit of particle size of raw material (mm) Capacity(ton/unit*hour) Weight (ton) Overall weight of plant(ton) 6.5 External dimension(mm)
Cs magnetic mud separators Brief introduction: The series cs magnetic mud separators are mainly used for fine mineral separation to separate the magnetic particles from the non-magnetic particles (mineral mud) by the gravity force, magnetic force as well as water flow force. By computer design the product features with high efficiency, high reliability, rational structure and easy operation. Standard packing
