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Henan Friend Metal Products Co.,Ltd

How To Make The Shaped Spring Steel Wire Work At High Temperatures

How to make the Shaped Spring Steel Wire work at high temperatures
It is necessary to have a very good anti-relaxation,
If the temperature of the Shaped Spring Steel Wire is high, the elastic modulus of the material forming the Shaped Spring Steel Wire will decrease, which leads to a decrease in the bearing capacity of the Shaped Spring Steel Wire and a decrease in rigidity. So, to make it work at high temperatures we need to know the rate of change, but also need to calculate the impact of the load carrying capacity on the performance of shaped Shaped Spring Steel Wire. In accordance with the relevant provisions of the general shape of the Shaped Spring Steel Wire if the work of the temperature is higher than 60 degrees, the need for its shear modulus of a certain adjustment.
The use of Shaped Spring Steel Wire to produce Shaped Spring Steel Wire, the choice of Shaped Spring Steel Wire according to the size of the stress and its nature to determine its hardness, but if the plane strain fracture, it may be due to the reasons for the hardness Caused.
If the spring is used in the instrument or in the instrument, most manufacturers will use constant elastic alloy, because its expansion coefficient changes very small, which is to meet its accuracy from temperature changes.
In the material selection time, the hardening performance of steel is the need to pay attention to this point on the shape of the Shaped Spring Steel Wire quality is relatively large.
To avoid the use of Shaped Spring Steel Wire improper What is the way:
1, to avoid the application of the maximum amount of compression, the pressure will cause damage, close to the use of long, so that the spring will gradually increase the wire thread, so the shape of the Shaped Spring Steel Wire will increase the number of heavy load Curve with the high, this time will make the shape of Shaped Spring Steel Wire fracture, so the use can not exceed 300,000 back.
2, due to a gap caused by the shape of the Shaped Spring Steel Wire up and down the shock caused by spring-shaped Shaped Spring Steel Wire twist, if the pre-pressure when the Shaped Spring Steel Wire will be more stable.
3, shaped Shaped Spring Steel Wire if the tap when used, this time will cause the guide pin and Shaped Spring Steel Wire wear and may break.
4, if the use of Shaped Spring Steel Wire guide in the case of use, then it is very easy to cause the bottom of the Shaped Spring Steel Wire and the body of the twist, the twisted part of the local high pressure is the leading Shaped Spring Steel Wire fracture of the important reasons, so use the diameter guide Pin or outside diameter lead and other devices.
5, the uneven surface of the assembly surface will cause the spring when the Shaped Spring Steel Wire twisted, local high pressure fracture, and the parallelism of the occasion caused by the formation of Shaped Spring Steel Wire twist and more than 300,000 times the use of shaped Shaped Spring Steel Wire fracture. Can not be more than 300,000 back to the use of conditions to improve the parallelism of the assembly surface.
6, and the gap between the guide pin is very small, then it will cause the impact of the inner diameter of the wear and tear, wear parts is caused by the shape of Shaped Spring Steel Wire fracture of the important reasons, on the contrary, too much will be likely to cause the shape of Shaped Spring Steel Wire twisted fracture Good between the shape of spring steel wire diameter -1.0mm or so. And long and long length of the Shaped Spring Steel Wire (free length / diameter greater than 4 or more) Please use the section or guide pin, need to avoid the shape of spring steel twist and guide between the collision.
Shaped Shaped Spring Steel Wire is now the production and life of the necessary items, there are many companies fancy the market, and vigorously production, I believe many people will ask the quality of spring Shaped Spring Steel Wire how to improve it? In fact, the impact of Shaped Spring Steel Wire production factors can be divided into: drawing process, production organization and equipment reasons, the following for everyone to introduce.
1, how to optimize the drawing process, the number of drums under certain conditions, then to maintain the total compression rate of the same, the appropriate reduction in part of the compression rate, the appropriate increase in the number of pull, in particular, reduce the last 1 Road part of the compression rate, can change the state of the internal stress distribution of the wire, so that the tensile strength of the decline in plasticity indicators in the rise, the product pass rate will be greatly improved.
2, drawing process, the Shaped Spring Steel Wire and the drawing die between the sliding friction, may lead to die hole in the wire deformation is uneven, and will produce a lot of heat, increase energy consumption, then need to use the drawing powder to dry and Good fluidity, while drawing too often need to stir, so you can prevent the drawing powder coking. In the drawing process to ensure that the mold box and reel cooling channel smooth, you can maintain a sufficient flow, and keep the mold box dry and clean. The use of internal narrowing water cooling and external forced air cooling, finished roll using internal spray water cooling and external ring gap forced air cooling, with lower hardness of the cooling water, water pressure in the 0.2-0.3MPa, temperature Do not exceed 30 ° C.

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