Tip 1: How to determine the stiffness of the spring

Springs - a component of the vehicle suspension that shield the car not only on road irregularities, but also provide the desired height of
the body above the road, which greatly affects vehicle handling, comfort and capacity.As a result of tests for each vehicle chosen optimal stiffness suspension springs under certain driving conditions.
Guide
1
When "breakdowns" suspension spring is considered too soft.In such situations, motorists become unstable in management.Ideally, the spring force must be equal to the value that prevents excessive body roll.
stiffer springs require cars that are prepared for racing.The use of different types of racing the same car involves the installation of springs with different stiffness th.Pay attention to the passage of any body roll in the corners, which, when properly selected springs must be no more than two or three degrees.
2
for front and rear suspension spring stiffness Pick pairs.However, you can not immediately achieve the desired height of the suspension, so that the spring sits, and at some point may be "lost" that is absolutely bad.This is due to lack of load capacity even when fully compressed, but with stiffness w ensuring the desired height of the suspension.Determined it is always easy: between the turns of the spring should be a gap of at least 4 mm.
3
Choose a spring so that when the car tucked gap between the turns of the spring has been a little more than 6.5 mm.It is advisable to install the softest springs, even though they will give the bank machine within permissible limits.Apply stiffer springs, based on the view that they reduce the roll of the car, improving the manageability, usually incorrectly.
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Check spring stiffness of the product code or labeling (stamping or paint).Also determine stiffness of the springs, you can use the hand press, floor scales and measuring range in kilograms per centimeter.
on household scales laid a wooden bar (thickness not less than 12 mm) in size more square end of the spring, and a spring mounted on top.Then, at the upper end of the spring is placed, and a second block of wood is measured by the length of the spring.Using a press spring is compressed to a certain value (e.g., 30 mm) and take readings of the scales, thereby calculating stiffness .

Tip 2: How to determine the stiffness

Learn how to determine the water hardness is every housewife to prevent damage to household appliances, damage to the laundry, as well as to try to keep your body from the adverse effects of dry skin and stoneskidney.There are several simple ways to find out what the water hardness of your tap.
Define the stiffness of your water and, if necessary, take measures to mitigate
Guide
1
In general an impression of how tough your water, you can trace the presence of scale on pipes and household appliances.If the water hardness is increased, the coil of the kettle, cranes, metal surface washing machine covered with a layer of considerable scale.It has a yellowish-gray color and several rolling in texture when exposed.
2
Water, which exceeded the amount of salt, the taste is very different from the soft water in which these salts less.Some people are able to independently determine the water hardness, having tried it because it was not very tasty.
3
In very hard water agents on soap basis completely refuse to lather, so if the soap in your hands not mylitsya and shampoo just runs down your hair, it means that the water hardness in your home is exceeded.In the case, if it is difficult to wash off the lather with your hands, it is said that the water from your tap is very soft.
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But all these methods of determining stiffness speak only of the approximate state of the water, and for precise figures it is necessary to use special equipment and technology.For example, aquarists use the so-called rapid test determining the hardness of the water you can find in specialty stores.
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There TDS-meters, which measure the level of minerals and salts, as well as electrical conductivity and water hardness.The device costs money, but, thanks to him, you will know the exact level of salts contained in your water, and if their number exceeds the norm, will be able to start in a timely manner to deal with the water hardness using protective equipment.
Sources:
  • site about water, its properties and beneficial effects on people.
Note
force pressing the spring is measured by the indication of the instrument, but a way to determine the stiffness of the springs is dangerous because the spring can fly away far enough.

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