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Требования к выбору материала для высокопрочных болтов

Помимо различных свойств в процессе обработки, высокопрочные болты из разного сырья имеют разные свойства задержки и разрушения под высоким давлением. Прежде всего, прочность на растяжение сырья для изготовления высокопрочных болтов во многом зависит от процесса его закалки. Как правило, трудно удовлетворить требования к сырью для высокопрочных болтов 10,9 после 40-градусной закалки. Если он не проходит строгий нормальный контроль, его можно закалить в зависимости от продукта. По твердости поверхности судят о качестве ее прочности на разрыв. (Справочник: О трех материалах крепежа)

Во-вторых, в качестве сырья в сетке сферического соединения болтов в основном используются высокопрочные болты с закалкой 40Cr. Расчетная прочность обычно составляет 390МПа (d>u003d30мм) или 430МПа (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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2-47-10-203Nishifunahashi, Hirakata City, Osaka
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