After the titanium is plastically processed, a series of post-processing operations are carried out to meet the user's final requirements for the surface quality, size, shape and certain properties of the titanium material, collectively referred to as finishing. In other words, the overall process of post-processing is finishing.
It can be seen from the process flow of titanium processing that different plastic processing processes require different finishing processes for titanium materials; different types of titanium materials have different finishing processes after processing. In practice, the finishing of the process can only be designed according to actual needs.
However, in general, the finishing house includes processes such as heat treatment, surface purification, cutting, straightening, surface treatment, inspection, marking, and packaging. For wire and strip, it should also include coiling and uncoiling shear. In order to expand the product variety, the surface treatment of the product can also be included in the finishing range. The above process is briefly introduced below:
(1) Heat treatment. In order to improve the microstructure, residual stress state and mechanical properties of titanium materials, heating, cooling and heat preservation procedures. There are a variety of heat treatment methods, which are carried out according to the needs of general technical users.
(2) Surface purification. Titanium materials after plastic processing are often accompanied by oil, and some are coated with oxide scale, which must be degreasing and deoxidizing. These oxide scales are firmly attached to the outer surface of the drink materials, and it is often necessary to take different methods to remove them according to different thicknesses of the oxide scales. Sometimes it is often necessary to use alkaline washing and acid washing to achieve the purpose of surface purification.
(3) Cut off. After the titanium is plastic processed, it is cut according to the size requirements of the special product. At this time, the two ends or irregular parts of the product can be removed to obtain the required size. When the local defect of titanium material is serious and cannot be repaired, the defect part should also be removed. Plates and strips are usually cut with a shearing machine, and pipes are cut with a sawing machine.
(4) Straightening. The process of correcting shape defects after titanium plastic processing. Shape defects such as the floating of the titanium plate, the bending or twisting of the titanium tube, etc., all need to be corrected to make it into a straight and neat qualified product.
(5) Surface treatment. Because titanium is sensitive to notches, surface defects such as cracks and gettering layers during the production process should be cleaned up in time by grinding and other methods to prevent further deepening during the deformation process. At the same time, in order to make the titanium surface color, oxidation resistance, corrosion resistance, wear-resistance and surface activity improvement, sometimes surface treatment is required.
(6) Coiling. It is a process in which the button belt and titanium wire are rolled into a roll. To facilitate storage and transportation, the products are supplied in rolls. The coiling is carried out on the coiler.
(7) Uncoiling and cutting. The process of unrolling the rolled titanium wire or titanium ribbon, flattening and cutting, and cutting into a single sheet or narrow ribbon or small titanium wire coil required by the user.
(8) Detection. In order to ensure that the product meets the standard or meets the requirements of the user, the size, shape and surface defects of the finished product before sale are checked. The defects detected are then corrected, trimmed, excised or discarded according to the situation. At the same time, sampling and testing the mechanical properties and organizational properties of the drilling materials, and adding non-destructive testing to the sky-slit pipe. At the same time, a qualified report is issued to the customer.
(9) Logo. In order to facilitate the user's use and transportation, and to track the quality of the product, all products should have a mark. The logo can be printed directly on the product, and the logo can be tied to the product at the same time. Because drinking materials are valuable products, each diamond product should have a printed logo. The content of the mark shall include the brand name, specification, batch number, factory standard, etc.
(10) Packaging. In order to facilitate product transportation. And to prevent the towel from damaging the product during transportation, it needs to be bundled and packaged before leaving the factory. Bundling methods vary depending on the product. For example, small cross-section profiles and bars can be bundled or coiled; strips and wires can be coiled; plates and tubes should be packaged and protected by wooden or thin steel plates.
Finishing is very important. It is a guarantee for the quality, geometry and weaving performance of the product to meet the standard requirements after the titanium is made. Only after the processed titanium material has been carefully sorted and packaged by this series of post-processing (ie finishing), its quality can be recognized by users. Therefore, finishing is also a "face-saving project", a plastic repair process.
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