A portable electrolytic polishing and etching machine for fast and efficient non-destructive metallographic preparation in the field. The hot mounting press Qpress 50 is a modular machine used in metallography for the fast, simultaneous and independent mounting of different materialographic specimens. The purpose for sample preparation is to obtain the material's true structure, without deformation of any kind. Metallographic samples need to be well levelled and polished. The best thermosetting compound for edge retention is EpoMet G, an epoxy-based resin containing a hard filler material. Find the right equipment, consumables and accessories for all your cutting needs. The method of mounting should in no way be injurious to the microstructure of the specimen. Added Services The first step in metallurgical analysis is sample preparation. Mounting mold (plastic, phenolic rings, rubber absorb heat differently). 7 ways to optimize cutting liquid for optimal sectioning. A stand-alone dedicated imaging tool for fast and simple weld bead inspection, measurement and control. Compression mounting resins are available in different colors and with various fillers to improve hardness or conductivity. Magnification: Magnification: Specimen: Specimen: Etchant: Etchant: Observation: Observation: 2 3. The mount sizes range from about 1 in. MOUNTING. To obtain electrical conductivity, Conductive Filler particles can be added to the castable systems, though the viscosity increases. Cold Mounting - Metallography Cold mounting provides protection and support of the sample surface, makes it easier to handle the sample, allows for several small samples in one mount and gives uniform sizes for clamping in a sample holder. Embedding allows limiting edge stresses during the polishing step. The first step is cutting a specimen, and (if needed) mounting in Bakelite, acrylic, or other materials. :) Signup to receive our special offers. Whether you require speed, accuracy, repeatability or all three, we have user-friendly solutions for hot and cold mounting that preserve the integrity of your specimens. Another consideration is whether or not the specimen can tolerate heat. The test specimens are extracted from the product or sample by cold cutting to prevent change in the microstructure from normal cutting. Materials Engineer, Degree of Technical Assistant for Metallography and Material Science. Copyright © 2020 Struers. 1.2 and can be described as two basic types of mounting: clamping with a sample holder or clamp, and embedding the speci-mens in organic or inorganic materials. Add to Quote; Product categories. Several compression mounting characteristics include: It is an art and science of preparing, interpreting, and analyzing microstructures in materials, to … All you need for high-quality polishing, from abrasive films and polishing cloths to lubricants. Metallographic Polishing and Grinding Grinding of Specimens. Metallography is the study of a materials microstructure. The only exception is ClaroFast, Struers’ thermoplastic resin which can be used in either CitoPress-15/-30 or any mounting press in which the resins can be pre-heated and softened without pressure. Experiment: Metallography Specimen Preparation and Examination Objectives 1. A precision cut-off machine for materialographic cutting of isolated material in enclosed cells. How to use non-destructive testing methods to quickly and accurately perform materialographic analysis in the field. A powerful high-speed hot mounting press for fast turnarounds in high-volume work areas. Most samples are sectioned and encapsulated in a metallographic mount to facilitate preparation. To achieve crystal clear samples, reusable silicon or EPDM molds should not be used. Before mounting, all oil and grease should be removed from the sample by washing it in acetone or ethanol, then drying it. A time-saving automatic microprocessor-controlled machine for electrolytic polishing and etching. QUANG NGUYEN. A wide selection of hot and cold mounting accessories, including cups, dyes, fixation clips, protection caps, engravers and AntiStik powder. A wide range of consumables and accessories for plane and fine grinding to ensure exceptional edge retention and reproducibility. MOUNTING: The primary aim of mounting a specimen is to make it handy and have a better edge control. Cut-Off Saws . In our metallography customer training classes, you’ll get hands-on lab experience in our state-of-the-art training facilities and learn about an array of topics specific to your recent instrument purchase or laboratory needs, ranging from daily operation to troubleshooting and … Common thermosetting compounds include phenolic (PhenoCure), diallyl phthalate and epoxy (EpoMet) while methyl methacrylate (TransOptic) is the most commonly used thermoplastic mounting compounds. Compression mounting is a very useful mounting technique which can provide better specimen edge retention compared to cast able mounting resins. Observing under optical microscope. Whether you want an automated solution for maximum repeatability and speed, or manual solution, we have the perfect grinding and polishing solution. | 41 Waukegan Road, Lake Bluff, Illinois 60044 |. A hot mounting press is essential in the preparations of some samples. We offer metallographic equipment for sample preparation, polishing and cleaning, cutting, mounting and grinding. Ph.D., M.Sc. Manual tabletop cut-off machines for fast, high-quality cutting in the lab or production environments. Your choice of mounting equipment depends on whether you use hot or cold mounting. To improve edge retention with castable mounts, the specimen can be plated with electroless nickel, or Flat Edge Filler particles can be added to the system. A basic Brinell hardness tester – low-cost and tough enough to withstand the toughest production environments. When preparation requirements include less expensive, uniform size and shape, and short processing times, hot mounting (hot compression mounting) is ideal. Using epoxy to mount a sample before processing is an effective way to provide additional support to samples during subsequent grinding and polishing and is especially important with delicate and porous samples. The most important part of metallography deals with the microscopic examination of a prepared metal specimen. Phenocure is the lowest cost option, and […] Search. How to use the Brinell hardness test for large samples with a coarse or inhomogeneous grain structure. Cookies are used for statistical purposes and to improve the site. It can be easily applied to objects of complex shape. Depending on the hardness of a given material, a thermosetting resin (Bakelite) may be necessary in order to avoid rounding the edges of a sample. Electrolytic or electroless Ni plating of the surface of interest provides excellent edge retention. Finally, consider that time can be saved by not mounting the specimen. We are a global, materialographic family. Metallography is the study of the microstructure of all types of metallic alloys. Mounting of Specimens It is frequently convenient to mount small specimens in bakelite or acrylic to aid specimen preparation, grinding, polishing and etching. Mounting is used when the protection of layers is imperative, and also it enables a safer and more convenient handling of small, sharp, or irregularly shaped specimens, for … How to use the Knoop hardness test for micro hardness testing. With the Aka-Cure Slow hardeners, the epoxy mixture cures overnight at low temperatures. For metallographic epoxies to grind properly, the hardness needs to be at least a Shore D80. Cutting. Common thermosetting compounds include phenolic (PhenoCure), diallyl phthalate and epoxy (EpoMet) while methyl methacrylate (TransOptic) is the most commonly used thermoplastic mounting compounds. Analysis of a material's metallographic microstructure aids in determining if the material has been processed correctly and is therefore a critical step for determining product reliability and/or for determining why a material failed. Over 45 years of service to industry. Clear, general purpose acrylic system, requires pressure vessel for clear mounts, minimal shrinkage. For easy and accurate cutting, you need the correct machinery for your work pieces. Max sample size: 50 x 165 mm. Automated grinding-polishing equipment produces flatter specimens than manual preparation. The basic idea is that bakelite powder is thermosetting. Mounting a specimen provides a safe, standardized, and ergonomic way by which to hold a sample during the grinding and polishing operations. Summary: The surface of a metallographic specimen is prepared by various methods of grinding, polishing, and etching. To examine and analyze the microstructures of metals and metallic alloys. Step 3: Mounting the Sample. Hot mounting takes place under pressure in a mounting press, where the specimen is placed in a cylinder together with the appropriate mounting resin. Hot mounting requires a mounting press that combines pressure with a high temperature. The purpose of mounting is to protect fragile or coated materials during preparation and to obtain perfect edge retention. Abstract Proper preparation of metallographic specimens to determine microstructure and content requires that a rigid step-by-step process be followed. We have solutions for both, as well as a wide range of resins and accessories. Castable Mounting . Common etchants for copper, copper alloys, iron, steel, and silver 6. Plating of a compatible metal on the surface to be protected (electroless nickel has been widely used) is generally considered to be the most effective procedure. Locate mouse over the button to open dropdown menu. Automatic Cleaning. Grinding and Polishing. Most castable mounting systems require neither pressure nor external heat and are recommended for mounting specimens that are sensitive to heat and/or pressure. We have solutions for both, as well as a wide range of resins and accessories. Small-sized samples on the other hand, have to be mounted initially to improve handling and/or protection for the edges, which takes place using either cold or hot mounting procedures. [METALLOGRAPHY] 5 5" Also lengthy coarse grinding may be required to obtain a flat surface. An efficient Vickers, Knoop and Brinell automatic hardness tester, offering micro, macro and universal testing in one machine. Dropdown Menu. Metallography involves systematic sample preparation commencing from specimen extraction to final etching. Is suitable for a large series of specimens coming to the lab simultaneously, and for single specimens. Please try again. Metallography / 11 Please do not hesitate to ask if there are things you haven’t found answers to. All our manual and automated cutting solutions are designed for maximum durability and ease of use. Figure 4. Acrylic systems, such as. Metallographic Castable Mounting Resins or cold mounting resins are room temperature mounting resins which typically require at least two parts (resin and hardener). oped for the mounting and embedding of metallographic samples. A full range of consumables for hot and cold mounting with different hardnesses for conductive and general-purpose use, including clear, transparent, fast-curing and no-shrinkage mounts. Never hot eject a thermosetting compound after polymerization and cool it quickly to ambient (e.g., by cooling it in water) as a gap will form between specimen and mount due to the differences in thermal contraction rates. A dedicated preparation machine for specimens that will be examined in transmission electron microscopes. To understand the need of mounting, polishing and etching. Cold mounting resins. Compression mounts yield better edge preservation than castable systems. Find all you need to know about grain structure analysis, including how to prepare sample for microscopic analysis and interpret the results, How to prepare microelectronic components for metallographic analysis. Taking pictures. During a metallography lab education courses, students spend time perfecting skills discussed during lecture. How to perform materialographic preparation and controlled material removal on silicon wafers, circuit boards and other electronic components. metallography; References in periodicals archive? Rigid grinding discs, such as the Apex Hercules H and S discs, produce excellent flatness and edge retention and should be used whenever possible. Mounting a specimen provides a safe, standardized, and ergonomic way by which to hold a sample during the grinding and polishing operations. A secondary purpose is to protect and preserve extreme edges or surface defects during metallographic preparation. A versatile Vickers, Knoop, Brinell and Rockwell semi/fully automatic hardness tester for laboratory environments. Learn all you need to know about materialographic preparation of different materials, metals and alloys – from sample preparation through to structure microscopy analysis – with expertise and insight from Struers, the world’s leading materialographic and metallographic experts. Metallography, Metallurgy, Spectroscopic and Geological sample preparation machines, consumables and supplies. If its viscosity is low, epoxy can be drawn into pores and cracks by vacuum impregnation. An automatic target preparation tool for both visible and hidden targets – ideal for delayering and preparing microelectronic components with precision. Metallography 2. Pressure and heat are the most likely sources of injurious effects. Metallographic supplies-consumables-metallography-materialography www.metallography.biz +0800-707-6273 (0) Solutions for Materials Preparation, Testing & … Mounting Consumables. Silicon carbide abrasive paper was the first method of grinding and is still used today. PS: Don’t hesitate to write in your own language. Max sample size: 35 x 80 mm. Edge retention compounds such as EpoMet have excellent hardness and shrinkage properties, and are best for hard materials where edge inspection is required as well as for resistance to strong chemical etches. Occasionally, small specimens are mounted (hot or cold mounting) in phenolic or epoxy resins or bakelite. The MFA series - hot mounting press incorporates a water filter which extends the operating life significantly and reduces standard maintenance requirements. Materials that work well for electropolishing or etching include soft austenitic stainless steels, aluminum and aluminum alloys, copper and copper alloys, among others. 6 ways to improve the speed and efficiency of your cutting. We have a complete range of hardness testers. It is necessary that the size of the specimen is made uniform (for certain specimen holders for automatic preparation). After mounting, the specimen is wet ground to reveal the surface of the metal. in Material Science and Engineering. The resulting mounts will be of high quality, uniform size and shape, and require a short process time. Accessories. Tabletop cut-off machines that combine precision, flexibility and a large capacity, so you can cut a wide range of materials fast. Blog Categories. Electrolytic polishing equipment for all your needs, from testing in thr lab to non-destructive mobile solutions for use in the field and electrolytes for virtually any application. Kemet Australia Pty Ltd, 4/11 Turbo Road, Kings Park, Marayong, 2148, NSW, AUSTRALIA - Tel: +61 (0) 29831 4922 - Fax: +61 (0) 29671 3516 National Tel: 1300 557 898. A high-end Rockwell automatic hardness tester with high-precision load cell technology for extremely accurate results. When a shrinkage gap is present, edge retention is usually poor. Ensure your hardness testers are properly calibrated with direct and indirect calibrations according to ASTM and ISO standards. As a general rule, curing times can vary from 30-45 minutes for fast curing epoxies up to 24 hours for slower curing epoxies. MOUNTING AND PREPARATION OF METALLOGRAPHIC SPECIMENS Once the sample has been removed from the object, it must be mounted and prepared for examination with a metallurgical microscope. He is a long-time member of ASTM Committee E-4 on metallography and has published extensively in metallography and failure analysis.
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