Welding plays a major role in the operation of a continuous casting machine. Improvements in welding techniques can significantly reduce running time and increase the life span of machine components. One such technique, Weldclad™, is increasingly being used due to its proven durability and performance. In this paper, we will discuss the application of the Weldclad process in the continuous casting machine with a focus on its advantages for longer machine life.
Firstly, it is important to note that Weldclad™ is considered as a specialized weld overlay process. It is ideal for applications where strict uniform thickness of protective coating is required. This coat is usually applied to parts using an automated machine process that melts a consumable electrode at a precisely controlled rate. This electrode contains the material being applied while a backing gas, usually argon, provides an inert atmosphere that protects the weld from oxidation and contamination.
The main applications of weldclading on a continuous casting machine are for elongating components, such as the forehearth, refiner and degasser, as well as reducing wear on endless rings, also known as rollers. The long-term benefits of weldcladding include reducing maintenance costs, minimizing downtime and extending machine life.
The process of weldcladding generally involves the operator first inspecting the area or component to be overlaid, paying close attention to surface cracks and deformation, and then applying the material to the surface. The operators must select the appropriate technique and parameters to ensure optimum deposition rate, maximum joint strength and the desired coverage over the surface.
One of the key advantages of the weldcladding process on a continuous casting machine is the ability to control deposit thickness. With this method, operators can deposit materials of nearly constant thickness without any manual cutting. This results in uniform wear along the entire length of the component, which minimizes the need for maintenance. In many cases, the thickness of weldcladding on a continuous casting machine can be kept within 0. 5-1. 0mm.
In addition to the ease of controlling deposit thickness, the weldcladding process has minimal effect on the surface finish of the component. This allows the material to be laid down without affecting the metallurgy of the base material, which extends the life of the component.
Other advantages of weldcladding on a continuous casting machine include improved fatigue resistance and corrosion protection. When welding with a wire or rod, material is added in addition to the base material creating a number of stress concentration points. However, with the weldcladding process, only the necessary base material is laid down, eliminating any additional stress concentrations. Furthermore, weldcladding provides a layer of protection from external elements such as dust and humidity which can reduce the life span of components when not properly protected.
In conclusion, weldclad has proven to be an effective solution for protecting and lengthening the life of components on a continuous casting machine. It provides uniform, controlled thickness deposits which minimize wear, extend fatigue resistance and provides a protective barrier against corrosion and other external elements. This process is being increasingly adopted due to its cost effectiveness, reliability and ability to prolong machine life.
当焊接起到关键作用时，连铸机的运营。焊接技术的改进可以显着减少运行时间并延长机器部件的寿命。其中一种技术，Weldclad™正受到越来越多的重视，因为它以其经过证明的耐久性和性能得到了好评。在本文中，我们将讨论Weldclad过程在连铸机中的应用，重点介绍它为更长寿命机器带来的优势。
首先，要知道的是，Weldclad™被认为是一种特殊的焊接覆盖过程。它非常适合需要严格均匀厚度保护层的应用。这层涂层通常是用一种自动机器过程来施加的，用于熔化精密控制的可消耗电极。这个电极包含应用的材料，而背部气体通常是氩气，可以提供惰性气氛以保护焊缝不受氧化和污染。
Weldlacding在连铸机上的主要应用是延长部件，如炉前、精炼器和脱气器，以及减少无尽环（也被称为辊子）的磨损。焊接覆盖的长期益处包括降低维护成本，最大限度地减少停机时间并延长机器寿命。
焊接覆盖一般来说，操作员首先检查要覆盖的区域或部件，仔细检查表面裂纹和变形，然后将材料施加到表面上。操作员必须选择适当的技术和参数，以确保最佳沉积速率，最大联接强度和目标表面覆盖面积。
在连铸机上使用焊接覆盖技术的关键优势之一是控制沉积厚度的能力。通过这种方法，操作员可以在不需要手动切割的情况下沉积出几乎相同的厚度的材料。这样可以减少整个部件的磨损，减少维护的必要性。在许多情况下，连铸机上的焊接涂覆厚度可保持在０。５-１．０mm之间。
除了易于控制沉积厚度外，焊接覆盖过程对部件表面粗糙度的影响也很小。这使得材料可以放置而不影响基体材料的冶金学，从而延长部件的使用寿命。
连铸机上的焊接覆盖还具有提高疲劳抗性和防腐蚀保
