Strolling the streets, you can always see a dazzling array of handsome men and women, various trendy and fashionable outfits, personalized, avant-garde, retro, and Buddhist style&hellip& Hellip;. As long as you have enough imagination, you can dress and match up as you please. In this era of bold personality, everything is up to you. However, the metallographic polishing machine in our metallographic laboratory cannot be randomly used, and personalization is possible, but it cannot be mistakenly used, otherwise it will not be able to restore the truth to your sample.
Metallographic polishing machines are essential sample preparation equipment for every metallographic laboratory, but there are many types and models of metallographic grinding and polishing consumables that can be paired with metallographic polishing machines. Metallographic friends will use several or more types and models of grinding and polishing consumables, which need to be selectively purchased and stored based on the technical requirements of sample preparation.
Below is a brief introduction to the grinding and polishing consumables that can be used in conjunction with the metallographic polishing machine by the metallographic editor of Chain Energy, in case they become useful in the future as a reference.
The main path of a metallographic polishing machine is to grind and polish metallographic samples. There are many types of products that can be used as grinding and polishing consumables, including metallographic sandpaper, diamond grinding discs, diamond polishing fluid, alumina/silicon oxide suspension, polishing powder, polishing paste, metallographic polishing cloth, diamond film, polishing cooling lubricant, and so on. Each type needs to be divided into many models. Due to different applications, it is advisable to refer to the recommended solutions of the manufacturer's application engineers when selecting.

Metallographic sandpaper: A metallographic sandpaper that can be paired with a metallographic polishing machine, usually circular silicon carbide metallographic sandpaper, with or without back adhesive. With back adhesive, it can be directly pasted on the grinding disc for use, making replacement convenient and relatively expensive compared to those without back adhesive. The ones without adhesive backing need to be fixed on the grinding disc with clamps, which is relatively economical. The size of the grinding disc of the metallographic polishing machine determines the size of the metallographic sandpaper to be purchased. Generally, there are three common sizes: 8 inches, 10 inches, and 12 inches, with some using smaller sizes with a diameter of 3 inches. Metallographic sandpaper from coarse to fine, from P60 (260 μ m) To P4000 (5 μ m) Reasonable selection should be made based on the material and preparation purpose requirements of the prepared sample.

Diamond grinding disc: It is a circular diamond grinding polishing disc that can be used with a metallographic polishing machine. The diameter is the same as that of metallographic sandpaper. When selecting, the size of the grinding disc should be consistent, and both discs come with adhesive backing. There are several types of diamond grinding discs, such as large particle diamond grinding discs and colored diamond grinding discs. It is necessary to choose a matching diamond grinding disc based on the different physical properties of the material to be polished. For example, samples of Superhard material such as hard alloy, ceramics, glass and Thermal spraying layers cannot be selected as diamond grinding discs for polishing softer materials such as copper, brass and aluminum alloy. Various types of diamond grinding discs are different and cannot be replaced each other. So, please remember this.

Polishing fluid: The polishing fluids that can be used in conjunction with metallographic polishing machines are mainly diamond polishing fluid and alumina/silicon oxide final polishing fluid. Diamond polishing fluids can be divided into polycrystalline, single crystal, and mixed polishing fluids. Generally, polycrystalline diamond polishing fluids are concentrated and require the addition of diluents before use. They have strong grinding ability and relatively high prices. Single crystal and mixed polishing fluids are commonly used. The particle size of diamond grinding particles ranges from coarse to fine to 0.05 μ M to 45 μ m. Commonly used with 1 μ M to 15 μ M is the majority. And the particle size of alumina/silicon oxide in the final suspension ranges from coarse to fine, with a value of 0.02 μ M to 1 μ m. Low price, widely used for final polishing.

Polishing cooling lubricating fluid: Used in conjunction with polishing fluid, there is also polishing cooling lubricating fluid, which has good cooling and lubrication effect, is environmentally friendly and anti-corrosion. There are two types: water-based and oil-based, and water-based is applied to any material that is not sensitive to water; Oil based polishing is only used for materials that are sensitive to water and is done at low speeds. It is a necessary consumable for metallographic polishing machines, especially water-soluble coolants are more widely used
Metallographic polishing cloth: Made of various materials such as silk, wool, nylon, and non-woven fabrics, suitable for different materials. Used in conjunction with polishing fluids, polishing cloths of different materials are used in conjunction with polishing fluids of different particle sizes. The sample materials vary, and the polishing cloth used may also vary. Please carefully refer to the application engineer's proposal. Metallographic polishing cloth is also basically a standard configuration for metallographic polishing machines and is one of the conventional essential consumables.

Polishing paste: generally diamond abrasive polishing paste, single crystal or polycrystalline diamond polishing paste, suitable for soft and easy to insert materials, and also suitable for polishing measuring tools, cutting tools, Optical instrument and other samples with high smoothness requirements made of high hardness materials such as ceramics, glass, hard alloy, etc.
Diamond film: also known as diamond polishing sheet, with particle size ranging from 0.1 μ M to 30 μ m. It has relatively mild grinding characteristics and is suitable for the special application of fine grinding and polishing of hard materials such as ceramics.
The above are the grinding and polishing consumables that can be used in conjunction with metallographic polishing machines. Polishing paste and diamond film are special applications and should only be purchased if needed. That's a rough introduction for now. Although these collocations are inferior to fashion trends, they are really Pragmatism. For friends to reference and choose from.