Titanium screw diameter of less than 30mm, less than 30mm centerline offset, the first with roasted red oxyacetylene bolt, and then hammer the bolt clincher (or jacking bent), after correction use steel weld reinforcement, tighten the bolts to prevent recovery.
If the titanium bolt spacing does not, you can use the oxyacetylene flame roasted red with a large hammer after the bend in the middle of welded steel reinforcement, when after filling it drowned. For large bolt (diameter of 30mm or more) there is a greater offset should first cut off the bolt with a steel plate welded to the bolt in the middle, such as insufficient strength bolts, the bolts can be welded on the two sides of reinforcement steel, which can not be longer bolt diameter less than 3 to 4 times.
Titanium is a new type of metal, and the performance of the carbon-containing titanium impurity content of nitrogen, hydrogen, oxygen and so on, the most pure titanium iodide impurities is not more than 0.1%, but its low strength, high ductility. 99.5% of the performance of commercially pure titanium: the density ρ = 4.5g / cm3, a melting point of 1725 ℃, thermal conductivity λ = 15.24W / (mK), tensile strength σb = 539MPa, elongation δ = 25%, necking ratio ψ = 25%, the modulus of elasticity E = 1.078 × 105MPa, the hardness HB195.