潘家园配镜攻略-1（Panjiayuan Raiders -1 glasses）.docVIP

潘家园配镜攻略-1（Panjiayuan Raiders -1 glasses） Plan to go to Panjiayuan with glasses, these two days research Raiders, put here to share, who needs, though take away 1, frames: Pure titanium is used in frames + frames, Titan-P or Ti-P PURE TITANIUM Pure titanium is used in frames Front-Titan-P or F-Ti-P Pure titanium is used for mirror feet, Temple-Titan-P or T-Ti-P Titanium alloys are used in frames + frames, Titan-C or Ti-C Titanium alloys are used in frames Front-Titan-C or F-Ti-C Titanium alloy for mirror foot, Temple-Titan-C or T-Ti-C Pure titanium TI-P, light weight, good elasticity, easy processing, easy shaping, anti sweat ability is strong, durable, but it is very difficult to weld the glasses off. Feet with TI-P sign. Please pay attention to the time of purchase. Is the main material for high-grade glasses. Memory alloy (superelastic) is also a kind of frame material, but it can be bent more easily and has better resistance to deformation. Note: more than 75% of the titanium content is titanium Gold TI-C, pure titanium is TI-P. Here are some simple methods for identifying pure titanium frames: 1) by hand weigh weight, usually accounted for about 8.9g/cm3 alloy frame, titanium frame is about 4.5g/cm3, because the weight is equivalent to half of titanium alloy frame, using his hands to light up. This is one of the simplest ways to distinguish titanium frames from non titanium ones. 2). Observation of nasal and nasal bracket stem stipules bucket welding, welding of pure titanium material for vacuum oxygen welding, welding marks here as steps shape, alloy material for welding spot welding, welding marks for slope, which is one of the distinguished titanium frame and non titanium frame method. 3) observe whether there is a gasket in the hinge joint, and the pure titanium frame should not make the titanium contact with the titanium directly at the hinge. Otherwise, it will appear that the joint is wrinkled and the leg of the mirror is not smooth. Usually, two thin shi