What Material is Used for Shear Blades?
2023-03-08 14:09How to form a glass products?
In general, a glass product such as a glass bottle or glass tableware is a molten glass lump of a predetermined size obtained by cutting molten glass continuously supplied from a glass melting furnace with a pair of horizontal reciprocating shear blades. As a gob, it is dropped into a mold provided below and formed into a glass bottle, tableware or other glass product.
When cutting molten glass, the temperature is high at 1000 ° C. to 1400 ° C., and the cutting blade portion is also hot, so it is easy to wear. If worn, the cut end of the gob becomes defective, and this causes streaky shear marks to remain in the product.
What the material is used for shear blades?
In terms of material, the shear blade is generally made of high-quality tool steels, such as high-speed steel (HSS), powdered metallurgy steel (PM), or tungsten carbide and ceramic. Some people will also choose cobalt-based alloy, at least the cutting blade portion is made of a Co-based alloy having a specific composition.
The material selection depends on the specific application, as well as factors such as the thickness and hardness of the material being cut, the type of cutting operation, and the expected level of wear and tear.
HSS is a common material for shear blades due to its excellent combination of hardness, toughness, and wear resistance. PM steel is another popular option as it offers superior wear resistance and toughness compared to traditional tool steels. Tungsten carbide is a highly wear-resistant material that is often used for cutting abrasive materials such as plastics, fiberglass, and composites.
The Shear blades display
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