Titanium alloys have been widely used in various fields due to their excellent properties. Among them, longitudinal shearing and strip separation is a crucial step in the processing of titanium alloy strips. It can precisely divide the wide titanium strips into narrow strips of the required width and length. The processing quality directly affects the performance and quality of the subsequent products, and it can meet the diverse needs of different users.
Process Flow Overview
The longitudinal cutting and striping of titanium alloy plates and titanium strips adopts the process route of "clamping - longitudinal cutting - directional material separation - pressing - winding - winding-up - unloading - packaging". This complete process design aims to achieve efficient and precise processing of titanium and titanium alloy strip rolls that are several kilometers long. Through this process, not only can the uneven parts at the edges of the titanium strip materials be removed, improving the overall quality of the strip materials, but also the wide titanium strip materials can be longitudinally cut into multiple narrow titanium strip materials of different widths according to the specific requirements of the users; or only the titanium bars can be trimmed while maintaining their original width to meet the needs of different application scenarios.
Detailed Explanations Of Each Process Step
(1) Clamping Section
Clamping is the initial step of the entire longitudinal cutting and strip separation process. Its core lies in smoothly and accurately guiding the running titanium strip into the longitudinal shearing machine by clamping a pair of rubber rollers. The selection of the rubber rollers is of vital importance. They must have good elasticity and wear resistance to provide sufficient friction during the feeding process without causing damage to the surface of the titanium belt. The clamping force of the rubber rollers also needs to be precisely controlled. Either too strong or too weak clamping force will not achieve stable feeding. In practical operations, pneumatic or hydraulic devices are usually used to adjust the clamping force of the rubber rollers to ensure the stability and reliability of the feeding process.
(2) Vertical Cutting Section
Vertical cutting is the key step in the vertical strip cutting process, which is achieved by using a set of disc shears installed on a pair of horizontal shaft rollers. The design and installation accuracy of the disc shears directly affect the cutting quality. During the cutting process, the disc shears perform longitudinal cutting along the length direction of the titanium strip, dividing it into multiple narrow titanium strips of different widths. To ensure the accuracy of the cutting and the quality of the edges, the blades of the disc shears need to remain sharp, and the gap between the knife discs needs to be precisely adjusted. At the same time, the outermost two pairs of disc shears cut off the uneven parts of the titanium strip edge. The cut edge lines are wrapped by the collecting wheels on the side of the disc shears into edge line rolls, which are convenient for subsequent processing.
(3) Directional Feeding Section
Directional feeding is a crucial step in organizing the narrow titanium strips that have been separated by longitudinal shearing. By using a feeding disc placed on a pair of transverse rubber rollers to guide the narrow titanium strips, ensuring that the gaps between adjacent strips are the same, they are neatly fed into the pressing plate platform. The design of the feeding disc needs to take into account the width and quantity of the narrow titanium strips, ensuring that each strip can be accurately guided to the designated position. At the same time, the rotational speed and direction of the transverse rubber rollers need to match the operating speed of the longitudinal shearing machine to ensure the stable transportation and orderly arrangement of the narrow titanium strips.
(4) Pressing Plate Section
The function of the pressing plate is to guide the segmented narrow titanium strips to the winding machine through the clamping of the pressing plate table. The press plate platform must have sufficient rigidity and stability to prevent deformation or damage to the narrow titanium strip during the clamping process. Its clamping force should also be medium. It not only ensure the narrow titanium strip stably conveyed, but also avoid any impact on its surface quality due to overly tight clamping. In practical use, adjustable press plate devices are commonly used. Its clamping force can be flexibly adjusted according to the different thickness and material of the narrow titanium strip.
(5) Rolling Section
The coil division process involves cutting the titanium strips obtained from longitudinal shearing into different lengths of coils according to the user's requirements. This step requires precise control of the cutting length, and usually a fixed-length cutting device is used to achieve this. The fixed-length cutting device can detect the running length of the titanium strip through an encoder or a sensor, and automatically trigger the cutting mechanism to perform the cutting operation. To ensure the accuracy of the cutting, the cutting mechanism needs to have high-speed and stable performance, and the cutting blades need to remain sharp.
(6) Collection Phase
The collection phase is a crucial step in winding the narrow titanium tape into a roll. The narrow titanium tape is guided by a group of directional distribution discs placed above the winding core shaft. Multiple narrow titanium rolls are wound onto the same winding core shaft. The design of the winding core shaft needs to take into account the width of the narrow titanium tape and the winding tension to ensure the stability and quality of the winding process. At the same time, the function of the directional distribution discs is to guide the narrow titanium tape to be wound evenly on the core shaft, avoiding any deviation or wrinkles. In practical operations, an automatic tension winding system is usually adopted. The winding tension is automatically adjusted according to the material and thickness of the narrow titanium tape to ensure the uniformity of the winding effect.
(7) Unrolling Process
Unrolling is the process of removing the wound narrow titanium coils from the winding machine. Once all the narrow titanium coils have been wound into a roll, the rolling cart supports the titanium roll from below, the winding machine contracts the expansion block, causing the inner ring core of the titanium roll to loosen. Then, a binding tape is used manually to tightly secure the narrow titanium coil to prevent it from becoming loose during transportation and handling. Next, the unrolling steering platform next to the winding machine is rotated to draw the narrow titanium coil out from the core shaft of the winding machine, and then the steering platform is rotated again to transport the narrow titanium coil to the packaging table for subsequent paper wrapping and packaging. The unrolling process requires operators to strictly follow the operating procedures to ensure safety and quality.
(8) Packaging Phase
Packaging is the final step in the longitudinal cutting and striping process of titanium alloy plates and strips. Its purpose is to protect the narrow titanium rolls from damage during transportation and storage. Usually, the packaging is done using paper. The appropriate packaging materials and methods are selected based on the size and weight of the narrow titanium rolls. During the packaging process, attention should be paid to the tightness and strength of the packaging to prevent the narrow titanium rolls from shaking or colliding during transportation. At the same time, information such as the product specifications, models, and quantities should be marked on the packaging to facilitate subsequent management and use.
Process Advantages
Firstly, it enables the continuous and efficient processing of titanium and titanium alloy strip materials in rolls. Secondly, through precise cutting and material separation techniques, it can ensure the width and edge quality of narrow titanium strips, meeting the various precision requirements of the products. Moreover, this process is highly flexible and can perform personalized customization processing, expanding the application scope of the products.