Titanium sponge round bar powder is made up of 3d titanium wire titanium sponge round bar hydrogenated - crushing - in addition to the hydrogen system. O 0.2 or less commonly, H article 0.02 or less titanium sponge round powder belongs to high quality titanium sponge round bar. To produce the high quality of titanium sponge round bar powder, first of all need to use high-quality titanium sponge round bar, we usually choose military small particles level 0 titanium sponge round bar as raw materials of titanium sponge round bar powder, 2 it is to maintain a vacuum in the production process a lot of link. Because the round bar titanium powder have adsorption, if cannot guarantee the vacuum will be adsorbed hydrogen and nitrogen in the air, it has a great influence on the quality of titanium sponge round bar. Material: Grade2 / TA2 specifications: ? 8 x 452 mm punch according customer's drawings, straightness requirement of 0.1 mm. If it is the general titanium round light bars, the straightness is very easy to achieve, but in the light of 8 mm diameter rods, equal distance after titanium tubing price eight equal the size of the hole, to ensure that the 0.1 mm of straightness is quite difficult. Workshop production tasks after they receive straightness of good bonzi ruled feet first, and then punched according to your drawings, after drilling rod deformation, straightening them one by one, until you reach the drawing requirement of straightness. Though period more than expected, but make sure that the quality of the product. Do Titanium welding pipe the product we are serious, do it to the best of every order, ensure flawless delivery, is always our pursuit.
Stress corrosion would ti6al4v eli occur suddenly, and there was no significant change in appearance, is a kind of has the very big harm to the local corrosion failure modes. Once produced, the stress corrosion crack will lead to local stress concentration and brittle cracking, eventually led to the material fracture under is far lower titanium round bar than the yield stress. The following introduces several influence factors and mechanism of stress corrosion.
1. The residual stress
Round bar titanium alloy with 40% accidents and in the process of forging, machining, welding, heat treatment, and the introduction of residual stress caused by stress corrosion cracking. 2. The surface structure
In Marine environment, oxidation ti6al4v film of titanium alloy will be generated on the surface of round bar can slow down the corrosion of its own, but round bar titanium alloy under high concentrations of chloride, low oxygen environment, such as pitting corrosion and crack, crack block area, this layer of oxide film will be destroyed, at the same time produce hydrogen adsorption, lead to stress corrosion cracking. Round bar titanium alloy surface status, and the chances of organizational structure of stress corrosion and rate have greater impact.