Blades made of tungsten steel excel in many aspects, but there are also some disadvantages that need to be noted. The following is a detailed analysis of the advantages and disadvantages of tungsten steel blades:
Advantages
High hardness: Tungsten steel is usually 8693HRA (equivalent to 6981HRC), second only to diamond. This high hardness allows tungsten steel blades to maintain sharp edges during long-term use, reduce wear and extend service life.
Good wear resistance: Tungsten steel blades have low cutting resistance, which can ensure smoother and more efficient cutting, and are not easily worn during use.
Strong heat resistance: Tungsten steel can still maintain its hardness and performance at high temperatures (such as 500℃), and even has high hardness at 1000℃. This means that when the blade is used for heavy-duty work, the tool will not be deformed or damaged due to heat.
Corrosion resistance: Tungsten steel blades have good corrosion resistance and can maintain their performance stability in a variety of environments.
Good strength and toughness: Tungsten steel blades are not only hard, but also have certain strength and toughness, which can meet the needs of various complex cutting tasks.
Disadvantages
High brittleness: Although tungsten steel has high hardness, it is also very brittle. This requires very strict process requirements when making blades, such as forging, heat treatment, cooling and other links must be paid great attention. Otherwise, the blade may break or break during use.
Passivation phenomenon: Tungsten steel blades are prone to passivation during use, that is, a dense oxide film is generated on the surface, which increases the difficulty of cutting. In order to solve this problem, modern high-speed cutting blades mostly use coating technology to treat the surface to improve service life and efficiency.
High cost: Tungsten steel has a high production cost, especially in mass production. Many factors such as processing difficulty, equipment cost, wear resistance, etc. will affect the cost. Therefore, the price of tungsten steel blades is usually higher.
Application scenarios
Due to their excellent performance, tungsten steel blades are widely used in various work scenarios that require precise cutting and high efficiency, such as precision machining, outdoor survival, kitchen cooking, geological exploration, mining drilling and other fields.
In summary, tungsten steel blades have excellent hardness, wear resistance, heat resistance, corrosion resistance and strength, but they also have disadvantages such as brittleness, easy passivation and high cost. When choosing whether to use tungsten steel blades, it is necessary to comprehensively consider factors such as specific usage scenarios, cost budget and process requirements.
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