Measuring the amount of selection criteria and compression spring

Spring including rectangular box spring, wire spring, spring's intention is stripping, stripping, the size of the spring rate, are associated with mold manufacturing smooth, playing out the goods is to pass the exam, etc. Spring manufacturer we said spring elasticity smaller, it is easy to cause goods by suppressed material deformation, mold unloading, commodity not easily removed from the mould, blanking, wound, simple blunt needle damage, etc all kinds of problems. Rectangular box spring general according to their color zoning can be divided into: brown, green, red, dark blue, light yellow, its elastic weaker will follow, according to different color, elasticity is different, and the amount of compression is different also. To measure the amount of compression spring is not hard: beforehand people to accurately measure the total height of spring, then put the spring vise, lock up, then measured with vernier caliper the length of the spring clamp die after the rest, again with the spring length reduce this number, except in general can again, this method all spring commonality, a simple and easy, for example, such as the spring length of 60 mm, brown should have left after being vice clamp to 45. 6 up and down, then with a 60 minus 45 people. 6 is equivalent to the
14. 4, 14. 4 except at 60, result equal to zero. 24, and amount of compression that is to say it. Spring according to the different spring application frequency, such as 1 million times, 500000 times, 300000 times, optional, the greater the amount of compression spring is less, use the mould life is less. Mould ponder for a while will spring will be broken, or immediately didn't force, quality almost spring, very easy to broken inside the mold. Generally in accordance with the 300000 number calculated on the amount of compression spring, in other words the mold at 300000 times the spring will be the power went out. Nature, general stamping die mold could also not so long, can also according to the large amount of compression. If according to the large amount of compression calculation, only guarantee the spring doesn't play in the mould. Mould pressing die, flatness is also good for goods. Large amount of compression: the larger amount of compression spring is equal to the initial height of the spring spring X is larger compression ratio, such as brown spring, length of 60 mm, then it's a larger quantity tighten as: 60 * 24% approximately equal to 14, the spring can down 14 mm, the larger its larger scheduling is 14 mm, the mould schedule must be less than 14 mm, spanning 14 mm, spring will meet is invalid, deformation, also will be cut off in the mould, or die wear, high-speed punch press is not down, and so on.
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