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It is called hinge to an object formed by two pieces that have a axis common, which allows them to move together to join two elements. Also called pernio or hinge , this hardware enables the opening and closing of windows and doors .

There are multiple kinds of hinges, of various materials and shapes and with numerous different uses. There are hinges of bronze , zinc , steel and plastic , for example, that allow an opening of 180° or less and they are installed with screws or other methods.

The doors usually have two or three hinges that favor their movement. So a person You can open or close the door, bringing it closer or away from the frame as desired. The usual thing is to move the door from your handle , latch , shooter or knob : the force applied makes the hinge fulfill its function.

The windows have a similar operation. Like the doors, they usually have hinges that make their movement of rotation and, therefore, its opening and closing.

In the case of doors and windows sliding or sliding , they have no hinges since they work differently. When they are sliding, the doors and windows move on an axis forward and backward or to the right and left, but not inwards and outwards.

In colloquial language, the idea of ​​hinge is used to qualify the event or moment that marks a change from state or of situation : "Messi's injury was a hinge in the game: from then on the Argentine team lost control of the ball", "Analysts believe that May will be a hinge month in the local economy due to the maturity of debt bonds", "The arrest of the president would be a hinge in national history".

How to lubricate a hinge

When a hinge begins to squeak, that is, to emit a noise sharp and sharp because of having lost its lubrication, its use begins to generate discomfort, especially at night. For this reason, it is very important to keep the hinges of all doors and windows in good condition.

The steps to lubricate a hinge are few and simple, in addition to not requiring the use of tools too specific. The first step is to buy the most suitable lubricant. Needless to say, in this product we should spare no expense, since considerable savings may lead to the need to apply it very frequently, or may not even give the desired result.

Some of the most recommended hinge lubricants are those of silicone (which are marketed in aerosol and are very easy to apply), the lithium grease (effectively resists dust and is achieved in almost all auto parts stores) and Edible oils (Ideal to get out of trouble, but much less effective than the previous two).

Next, it is necessary to remove the plug of the hinge by turning it counterclockwise, either by hand or with tweezers, and remove all traces of dust and dirt, since these are the causes of malfunction and noise. If it is oxidized, then an inhibitor product may be necessary to loosen it. It is time to apply the lubricant, both on the plug and in the holes of the hinge itself.

From this point on, it is a matter of replacing the plug and checking if it continues to produce the squeak; if so, then we must remove it again and lubricate it, and so on until we get the result we are looking for. Excess of product It can be cleaned with a paper towel or cloth cloth.

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