Spring Tempering Considerations

Spring Tempering Considerations

1. The Spring Cannot Be Tempered In Such A Way That The Temperature Is Shortened.

2. Hardness: As The Tempering Temperature Increases, The Hardness Slightly Increases And Then Decreases. The Best Temperature For Fatigue Performance Is Slightly Lower Than The Maximum Hardness Temperature.

3. Reducing Diameter: The Outer Diameter Of The Carbon Steel Spring Will Be Reduced When It Is Tempered, So Some Dimensions Should Be Reserved For The Coil Spring.

4. Spring Tempering Color: The Tempering Color Is Related To The Temperature And The Residue On The Surface Of The Steel Wire. The Color Unevenness Is Related To The Temperature Distribution Or The Air Flow In The Hearth. If The Color Is Expected To Be Uniform, The Furnace And Charging Method Must Be Managed; If There Is Local Oil Or Fingerprints Will Change Color After Tempering.

5, Tempering Temperature: Generally Used In The Tempering Temperature Of 250-280 °C, Such As The Use Of 200-250 °C Processing Steel Wire, Although You Can Increase The Strength, But The Plastic Toughness Will Be Lost, Can Lead To Tension Spring Do Hook Or Torsion Spring Bending Break In The Leg.

6. Compression Spring: Mild Low Temperature Tempering After Hammering Can Reduce Deformation.

7. Tension Spring: The Initial Stress After Tempering Treatment Will Be Lost. When Setting The Deviation, Consider The Allowable Loss.

8, Torsion Spring: Coil Spring After 280 °C Tempering, Such As Coil Springs After The Re-Processing, Low Temperature Tempering Temperature Of 250 °C.

9, The Spring Hook And Torsion Spring Arm: After Tempering The Position Will Change, If There Is An Accurate Position Requirements, Should Grasp The Amount Of Change.