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Shen LiTong Dies
Your wire problem solver
With complete production systems including casing cutting, blank setting, laser drilling, calibration, and polishing. For more than 20 years practical experience, our technical personnel have being specialized in development and production of all kinds of wire drawing dies such as natural diamond dies, polycrystalline diamond dies, tungsten carbide dies, bunching and stranding dies, extrusion tips and dies, enameling dies, etc. We also provide die refurbishing services.
Extremely high hardness and wear resistance ensure long tool life.
A mature production line of skilled, efficient and stable quality large drawing dies
According to your needs or our own suggestions, we can make specific products for you.
Recutting drawing die services.
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In the drawing process, it is easy to face that the dies are not used for a long time, but the holes are larger or elliptical, wire break frequently, and the wire surface is not polished, which brings difficulties to the operation and causes losses to the production. There are many reasons for these problems, mainly including the following factors: 1. Input wires The surface quality of the input wires not good, such as it is elliptical, overlapped, spotted, uneven, etc., which make it difficult for drawing. In addition, the inherent quality of the wire itself, such as mechanical properties, chemical composition, metallographic structure, etc., are all relevant to the quality of the product after drawing. 2. Drawing equipment The drawing equipment installation is not stable and with big vibration, the drawing capstans are grooved or the wire drawing speed is too fast, etc. These will affect the drawing quality. 3. Wire drawing dies The angle of the dies hole is inconsistent or does not meet the standard. In addition, the unreasonable die series, mainly refers to the excessive or small amount of compression in each pass. 4. Lubricant When drawing, lubricating oil is added to form a thin film on the metal surface within the working cone. Angle due to pressure. Lubrication is added during drawing to make the metal surface form a thin film due to pressure in the working cone angle, so that there is no direct friction between the wires and the die holes, which reduce friction and thus it can reduce the power load of the equipment and prolong the service life of the drawing dies. And, it is also need to reduce the drawing temperature. There must be sufficient pressure to make the cooling of dies and wires good. The high temperature of the wires will damage the lubricant and die holes during drawing. 5. Die cores For drawing different material wires, it should choose the proper die cores to improve the service life of the dies.
In the production process, It will cause a great consumption to the drawing dies, which not only increases production cost, but also affects production efficiency due to frequently stop the production line to change dies. The timely or regular maintenance of the dies will extend its life and enable the manufacturer to obtain better economic benefits. 1. Cleaning: before maintenance, the surface of the drawing dies should be cleaned to remove oil stains and impurities. Then wipe the stains in the holes with medical cotton. 2. Inspection: checking the damage of the dies and then classify dies into polishing maintenance and reaming maintenance. 3. Polishing: pay attention to the time and smoothness after polishing during the polishing operation. 4. Reaming: before reaming, determine the target aperture to be enlarged, and then implement it in steps. 5. Regular maintenance: usually, the company that uses the dies should work out the maintenance cycle of the dies according to the production process requirements. And do maintenance for the dies regularly.
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