1. When using a grade 7 titanium alloy plate as a filter material, prevent it from being collided or scratched, and keep it well so as not to be polluted.
2. The use of titanium plate filter material cannot exceed its maximum working capacity.
3. Before entering the work, the titanium plate filter material must be activated first, and then it can be adjusted to the normal working environment.
4. Finally, the used Grade 3 Pure Titanium Plate material must be cleaned
The pressure processing of titanium alloys has more similarities with steel processing than with the processing of non-ferrous metals and alloys. Many process parameters of grade 5 titanium round rod in forging, volume stamping and plate stamping are close to those of steel processing. But there are also some important features that must be paid attention to when press working titanium and titanium alloys.
Due to titanium's heat resistance, cooling is critical during titanium alloy machining. The purpose of cooling is to keep the cutting edge and tool surface from overheating. Use end coolant for excellent chip evacuation when shoulder milling as well as face milling pockets, pockets or full slots. When cutting Seamless Titanium Tube Grade 2, chips can easily stick to the cutting edge, causing the next round of milling cutter rotation to cut chips again, often causing edge line chipping. Each insert cavity has its own coolant hole/injection to solve this problem and enhance constant edge performance. Another clever solution is threaded cooling holes. Long edge milling cutters have many inserts. Applying coolant to each hole requires high pump capacity and pressure. But it is different, it can block the unnecessary holes according to the needs, so as to maximize the liquid flow to the required holes.
The main advantages of using titanium and titanium alloys as human implants are (1) Density (20°C) = 4.5g/cm3, lightweight. Implanted into the human body: reduce the burden on the human body, as a medical device: reduce the operating load of surgical medical titanium wire personnel. (2) Low elastic modulus, pure titanium is 108500MPa, implanted in the human body: it is closer to the natural bone of the human body, which is beneficial to bone joint and reduces the stress shielding effect of bone on the implant. (3) Non-magnetic, not affected by electromagnetic fields and thunderstorms, which is beneficial to human safety after use. (4) Non-toxic, as an implant, it has no toxic side effects on the human body. (5) Corrosion resistance (biologically inert metal material), which has excellent corrosion resistance in the immersion environment of human blood, ensures good compatibility with human blood and cell tissue, does not produce human pollution as an implant, and does not Allergic reactions will occur, which is the basic condition for the application of titanium and titanium alloys. (6) High strength and good toughness. Due to trauma, tumors, and other factors that cause bone and joint damage, in order to establish stable bone support, arc-shaped plates, screws, artificial bones, and joints must be used. These implants should be left in place for a long time. In the human body, it will be subjected to bending, torsion, extrusion, muscle contraction, and other effects of the human body, requiring implants to have high strength and toughness.
The oxide scale and α-shell layer formed during the forging heat treatment of all titanium alloys are very brittle, and induce cracks in the subsequent forging or in the final forging or cause tool wear in the subsequent machining process. Therefore, it is recommended that titanium alloy processing remove scale and α-shells between continuous forgings, and scales and α-shells must be removed before forgings are delivered to users.
The cleaning technology of F9 Titanium Forgings has two aspects: one is the removal of oxide skin; the other is the removal of α shell. The scale can be removed mechanically, such as sandblasting; or chemically, such as molten salt derusting. The choice of rust removal method depends on the size, complexity and cost of the part.
Sandblasting is an effective method to remove rust scales. It can remove scales with a thickness of 0.13-0.76mm. It can use 100-150 mesh zircon sand or steel sand, and the air pressure can reach 275Pa. Although sand blasting is available for forgings of various sizes, it is mostly used for medium and large titanium alloy forgings. Sandblasting equipment can use abrasive drums, shot peening or sandblasting units. After sandblasting, it is pickled to remove the alpha shell.
Molten salt derusting is another effective method for removing scale, and pickling removes the alpha shell along with it. 1. The flow chart of rust removal and pickling by molten salt, solution composition and related parameters. The frame used for molten salt derusting is generally made of wood, titanium or stainless steel, in order to prevent electric potential from being generated between the workpiece and the frame, resulting in electrical erosion or arcing of the workpiece. Molten salt derusting is often used for medium and small forgings. In the case of large batches of forgings, the operating system can be fully automated.
