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Požadavky na výběr materiálu pro vysokopevnostní šrouby

Kromě různých vlastností v procesu zpracování mají vysokopevnostní šrouby z různých surovin různé vlastnosti zpoždění a lomu pod vysokým tlakem. Za prvé, pevnost v tahu suroviny vysokopevnostních šroubů má hodně společného s procesem kalení. Obecně je obtížné splnit požadavky na suroviny pro 10,9 vysokopevnostních šroubů po 40stupňovém kalení. Pokud není v přísné normální kontrole, může být zhášen podle produktu. Po povrchové tvrdosti posoudit kvalitu jeho pevnosti v tahu. (Průvodce: O třech materiálech spojovacích prvků)

Za druhé, vysokopevnostní šrouby s úpravou kalením 40Cr jako suroviny se používají hlavně v mřížce kulových spojů šroubů. Konstrukční pevnost je obecně 390MPa (d>u003d30mm) nebo 430MPa (d <30mm). High pretension pressure, if you want to add a high pretension, but also pay attention to understand and ensure its delayed fracture performance. The quality of high-strength bolts is the key, and it is necessary to strictly follow the requirements.

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Dongguan Fortuna was established in 2003. It has a factory area of 16,000 square meters and 260 employees. It is a production enterprise specializing in precision metal stamping parts, precision CNC processing, injection molding and product assembly.
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