10.9 grade electric motorcycle brake burnt DIN912 titanium screw.
Titanium screws are one of the ultra-high-strength screws produced by special materials.
Titanium screws are produced and processed with high-strength heat-resistant and corrosion-resistant titanium alloy materials.
Commonly used heat treatment methods are annealing, solution treatment and aging treatment. Annealing is to eliminate internal stress, improve plasticity and structural stability, so as to obtain better overall performance. Usually the annealing temperature of α alloy and (α+β) alloy is selected at 120～200℃ below the (α+β)─→β phase transition point; the solution and aging treatment are rapid cooling from the high temperature zone to obtain martensite α′ Phase and meta-stable β-phase, and then keep these meta-stable phases in the middle temperature zone to decompose these meta-stable phases to obtain α-phase or compound and other finely dispersed second-phase particles to achieve the purpose of strengthening the alloy. Usually (α+β) alloys are quenched at 40～100℃ below the (α+β)─→β phase transition point, and metastable β alloys are quenched at (α+β)─→β phase transition point above 40～80℃ conduct. The aging treatment temperature is generally 450～550℃.
The heat treatment process of titanium alloy can be summarized as:
(1) Stress relief annealing: the purpose is to eliminate or reduce the residual stress generated during processing. Prevent chemical attack and reduce deformation in some corrosive environments.
(2) Complete annealing: the purpose is to obtain good toughness, improve processing performance, facilitate reprocessing and increase the stability of size and structure.
(3) Solution treatment and aging: The purpose is to increase its strength. α titanium alloy and stable β titanium alloy cannot be strengthened heat treatment, and only annealing is carried out in production. α+β titanium alloy and metastable β titanium alloy containing a small amount of α phase can further strengthen the alloy through solution treatment and aging.
|Surface Treatment||Heat treatment|
|Color||Blue and White|
|Feature||High tensile,High temperature and abrasion resistance|
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