Drilling iron. simple recipes

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FACTORY TECHNOLOGIES AT HOME - SIMPLE RECIPES
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Drilling iron. Simple recipes and tips

Factory technologies - simple recipes

Directory / Factory technology at home - simple recipes

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Here is one of the simple and yet highly original ways wrought iron drilling: iron bar, plates, etc.

First of all, you should stock up on a sulfur stick of such thickness and shape (round, trihedral or tetrahedral), what size and what shape they want to drill a hole in the gland. This stick is not difficult to prepare, since sulfur is easily melted and therefore can be easily cast into one form or another. Then it remains to heat the iron to white and rest the sulfur stick on that part of the iron bar or iron plate in which they want to drill a hole.

Under these conditions, a sulfur stick enters iron easily, "like cheese", and the hole made in shape and size fully corresponds to the shape and thickness of a sulfur stick.

Author: Korolev V.A.

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National Semiconductor, a leading provider of high-end analog signal processing products, has launched a family of micro-power, high-speed comparators. The LMH7322 is a dual comparator that has low power consumption (21 mA nominal) and a propagation delay of less than 1 ns (700 ps nominal).

The LMH7220 features LVDS (Differential Data Transfer Method) and RSPECL (Row Peak Positive Emitter Coupled Logic) outputs. National Semiconductor will begin testing a quad comparator with a specification similar to the LMH7322 in late 2007. The LMH7220 is a high speed, low power single comparator with a supply voltage range of 2,7V to 12V.

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