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Many people often ask during the polishing process, “Should I use sandpaper for this surface, or opt for a specific grade of diamond paste abrasive?” When it comes to selecting polishing materials like diamond paste or the grit number of a grinding wheel, how do we determine which grit number can achieve the desired result? Let big data and statistical analysis provide you with the answer.
There are many types of grinding wheels and tools, with various shapes and sizes. Depending on the abrasive material, bonding agent, and manufacturing process, each grinding wheel has a specific range of applications. An incorrect choice can directly affect machining accuracy, surface roughness, and production efficiency. Therefore, when performing grinding operations, it is essential to select the appropriate grinding wheel based on the specific situation. How can we correctly choose a grinding wheel? Here’s a summary of commonly used grinding wheels in machining to help you make informed choices.
How to correctly choose a grinding wheel for tool grinding? Read More »
Diamond is one type of superhard material and cubic boron nitride is another. The two kinds of superhard materials after a series of machining and processing procedures can be made into a variety of tools and directly with them into a variety of functional devices, collectively referred to as superhard material products.
Mirror finishing refers to the process where the surface of a workpiece is polished to the point where it can reflect images like a mirror. This level of finish signifies exceptional surface quality, providing products not only with a high “aesthetic value” but also reducing notch effects, thereby extending the fatigue life of the workpiece. It holds significant importance in many assembly and sealing structures.
Subtlety Comparison Table of Diamond Micro Powder Standards JB/T7990-1979 GB6966-86 JB/T7990-1998 QB/HH1801-04 Corresponding number 0-0.25 W0.5 0-0.05 M0/0.5 0-0.5 W1 0-1 M0/1 0-1 M0.5/1 0.5-1 0.5-1 M0.5/1.5 0.5-1.5 0.5-1.5 M0/2 0-2 W1.5 0-2 M1/2 1-2 0.5-3 12000 W2.5 1.5-3 M1.5/3 1-3 10000 1.5-3 8000 2-3 7000 W3.5 2-4 M2/4 2-4 6000 W5 2.5-5 M2.5/5 2-5
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The detonation synthesis products (nano diamond powder, black powder and gray powder) before and after purification were used to modify fluororubber and nitrile rubber. Studies have shown that although detonation black powder can increase the hardness of rubber, its tensile strength and elongation at break will decrease. When nano diamond powder is added into fluororubber,
1992年、米国のヤシュチェンコらは粉末冶金法を用いて新しいタイプの耐摩耗性材料を製造した。この材料は、銅亜鉛粉末と銅スズ粉末をナノダイヤモンド粉末と一定の割合で混合し、圧縮し、水素中で焼結することによって作られた。この新素材は、内燃機関のシリンダーライナーやその他トランスミッション機械のブッシング、滑り軸受の製造に使用できます。この新素材には、摩擦係数が低く、熱伝導率が高いナノグレードのダイヤモンド粉末が含まれているため、耐傷性と耐摩耗性が高くなっています。 実験結果によると、ナノダイヤモンド粉末で作られた金属修復剤は、引張強度が71.98％、ねじり強度が19.75％、耐摩耗性が154.82％向上しました。 海外の報道によると、ナノダイヤモンド粉末は、航空機や船舶の胴体、翼、船体表面の有機シリコンコーティングに使用できるとのことです。コーティングの耐腐食性、不凍性、耐熱性、耐老化性を高め、弾力性、破壊強度、引裂強度などを向上させ、表面コーティングの耐用年数を1.5～2.0倍に延ばすことができますが、コストは1～2％しか増加しません。
New wear-resistant materials containing nano diamond powder Read More »
（1）Nano Diamond Powder Composite Coating Nano Diamond Powder Composite Coating Technology is one of the key technologies for product manufacturing. Through surface coating, the surface of the product can be protected by a protective layer of controlled composition and organization, which significantly improves the service life and reliability of the product. For example: marine platforms,
鑽石膏是常用的拋光劑，如使用得當可獲得最佳的效果。
拋光用的工具，從不同類型的纖維到粘墊品，不同硬度的材質都很適當。如尼龍、紙、天鵝絨、棉花等。
拋光時需留意：
a．拋光應在一個無塵、通風處進行，因堅硬的塵粒易沾附於鑽石膏上會損毀快要磨好的表面；
b.每一個拋光工具都應僅用於一種鑽石膏，並注意防塵：
