Blue Flag introduces nanosphere coating for a new generation of hobs

Experts from the German company FETTE have developed a new coating, the nanosphere, which is tailor-made for gear processing tasks.

According to the company's report to the Adsale China Machinery and Metal Processing Network, the coating is a special hob coating with a multi-layer structure consisting of nano-layers and thinner than 3 to 4 microns, although it High hardness, but microscopic elasticity, can effectively protect the hob and reduce wear. It increases cutting speed, reduces cycle time, increases productivity, and extends tool life by up to 30%, reducing the cost of the hob.

The secret of the innovative nanosphere coating lies in its multi-layered, nanostructured design, which effectively improves the thermal insulation of the tool. At the same time, the multilayer structure of the nanosphere coating makes it more elastic than a single layer coating. When the substrate loses stability and yields under pressure, the flexible multilayer coating on top of it will also yield.

Fitt emphasizes that it will ensure that hobs with nanosphere coatings will continue to work with the same standards of new tools after re-grinding and overcoating. This is a process based on standardization. The tool is re-grinded and overcoated on the original grinding machine and coating equipment at the Fürth Grinding Center, a process that guarantees consistently high quality and absolute process safety.

If a crack occurs in the nanosphere coating, its expansion is redirected and slowed down by the multilayer structure. Its multi-layer structure also provides better insulation, which means that the high temperatures generated during the hobbing process take a long time to heat the steel tools. According to the information obtained by the Adsale China Machinery and Metal Processing Network, as a wholly-owned subsidiary of the German Blue Group in China, Nanjing Lanzhi Metal Processing Technology Co., Ltd. has invested in the establishment of a grinding center that meets the above criteria, including Swiss coating equipment, de-coating equipment and testing equipment.  

Ball Valves

There are five general body styles of ball Valves: single body, three-piece body, split body, top entry, and welded. The difference is based on how the pieces of the valve-especially the casing that contains the ball itself-are manufactured and assembled. The valve operation is the same in each case.

In addition, there are different styles related to the bore of the ball mechanism itself.

Ball valves in sizes up to 2 inch generally come in single piece, two or three piece designs. One piece ball valves are almost always reduced bore, are relatively inexpensive and generally are throw-away. Two piece ball valves are generally slightly reduced (or standard) bore, they can be either throw-away or repairable. The 3 piece design allows for the center part of the valve containing the ball, stem & seats to be easily removed from the pipeline. This facilitates efficient cleaning of deposited sediments, replacement of seats and gland packings, polishing out of small scratches on the ball, all this without removing the pipes from the valve body. The design concept of a three piece valve is for it to be repairable.

Stainless Steel Ball Valves, Brass Ball Valves, Sanitary Ball Valves, Water Ball Valves

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