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How Cement Mixers Work

  • Дата Публикации: 18-09-21

How Cement Mixers Work     In addition to the mixing energy applied to the fresh concrete (i.e. shearing during mixing), the shear history after mixing is also important. This applies especially to binder rich concretes like the different types of high…

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How Padlocks Work

  • Дата Публикации: 18-09-21

Learn about the standard iron padlock to understand the main parts, how they work and also how to bypass the mechanical security features to pick the lock.     With thanks to Squarespace for sponsoring this article. Go to Squarespace.com for a free…

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How battery chargers work

  • Дата Публикации: 17-09-21

If you've read our main article on batteries, you'll know all about these portable power plants. An example of what scientists refer to as electrochemistry, they use the power of chemistry to release stored electricity very gradually.     What…

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Control Valve

  • Дата Публикации: 17-09-21

This valve controls the expulsion of oil from the spring side of the second gear band servo piston at speeds in the region of 60 km/h. The time period for oil to exhaust then depends upon the governor pressure varying the effective exhaust port…

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