By alloying several percent of carbon with a minimum, 12 % alloy (primarily chromium), hard carbides are formed and dispersed throughout the surfacing deposit.
These dispersed carbides are much harder than the surrounding matrix and provide excellent abrasion resistance. They are used when the primary wear factor is abrasion. At the lower end of the carbon range (less than 3 %) the quantity of carbides is small compared to the matrix where they are dispersed.
These alloys exhibit good abrasive wear resistance while retaining good toughness. These carbide-surfacing alloys are used to resist a combination of abrasion and impact. As the carbon content increases (to as much as 7 %), in the carbide containing alloys, the abrasion resistance increases and the toughness decreases. This is due to the higher percentage of carbides. As carbides are undermined and knocked out by moving abrasive particles, additional carbides are uncovered to further resist abrasives and delay wear as shown in the diagram to the right.
The low carbon steel base plate enables the plate to be welded, bolted or studded to existing structures, while the hard facing provides the premier wear-resistant surface capable of working in all applicable service conditions at either ambient or elevated temperatures.
HP Wear Resistant Group offers various products of wear plates namely Cr-Carbide Weld Clad Plates, Smooth Surface CCO plate, Heat Treated Wear Plates (AR Plate or Q&T Steel), Casting Plates, Tungsten Carbide Coated Plates in various grade and multiple size options.
Due to its excellent properties, HP Wear Plates work for long-lasting service life and super performance, which are well applied to the industries like Cement Plant, Steel Mill, Mining Site, Power Generation, Construction where need combat with abrasion.
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Come unire i metalli senza saldare?
How to Join Metals Without Welding?
When it comes to joining metals without welding, there are several methods that can be considered, especially when welding is not feasible or desirable. Whether you're working on a DIY project at home or dealing with industrial applications, understanding these alternatives can be crucial. Let’s explore some of the most common methods.
Brazing: A Close Alternative to Welding
Brazing is a popular method used in industrial settings as an alternative to welding. It involves heating a filler metal to melt and flow between two metal pieces, effectively joining them. Unlike welding, brazing doesn’t require melting the base metals, which can be advantageous in certain scenarios. Brazing can be done using various techniques such as torch brazing, furnace brazing, or vacuum brazing. However, brazing might not always be cost-effective compared to welding, and its mechanical strength is generally lower. Additionally, it may not be suitable for casual users who occasionally need to join metal parts.
Riveting: A Simple and Effective Joining Method
Another straightforward method for joining metals is riveting. This technique is widely used, especially for thin sheets or plates. A rivet, essentially a cylindrical pin, is inserted through aligned holes in the metal pieces and then deformed to hold them together. Riveting is simple enough for DIY enthusiasts and doesn't require specialized skills. Yet, it has limitations, such as limited shear resistance due to the small area of overlap and potential aesthetic concerns. Moreover, drilling holes in the metal is necessary, which could weaken the structure slightly.
Bolting: A Reliable Joining Technique
Similar to riveting, bolting involves using bolts to fasten metal components together. Unlike rivets, bolts can often be removed and reused, making them ideal for temporary or disassemblable structures. Bolting doesn’t require drilling as frequently as riveting, but precise alignment is still essential. The main drawback of bolting is its lower tensile strength compared to welding, though this can be mitigated by using high-strength bolts. As with other mechanical fastening methods, aesthetics can also be a concern.
Adhesives: Modern Solutions for Metal Joining
In recent years, structural adhesives and double-sided tapes have emerged as innovative solutions for joining metals. These adhesives offer numerous advantages over traditional methods like welding and riveting. They provide greater design flexibility, resulting in cleaner and more aesthetically pleasing joints. Importantly, adhesive bonding does not involve drilling, adding weight, or generating noise, vibrations, or visual disruptions. Furthermore, structural adhesives distribute stress over a large surface area, providing excellent mechanical strength. Whether you need small or large quantities, liquid adhesives or tape formats, they cater to diverse applications across different metals. Best of all, no additional machinery is required, and there are countless options available online tailored to specific needs.
Conclusion
While welding remains a dominant method for joining metals, these alternatives offer valuable solutions in situations where welding isn't practical or desirable. Each method has its own set of benefits and limitations, so choosing the right one depends on your specific requirements, whether you're working on a personal project or managing industrial operations. By considering factors like cost, strength, ease of use, and appearance, you can select the best approach for your needs.