Glass Mould Tool Steel
Fushun are main manufacturer of tool steel for Glass Mould.
What is Glass Mould?
A glass mold is a specialized tooling designed for shaping molten glass into specific forms under high-temperature conditions. These molds operate in extremely demanding environments, typically handling glass temperatures ranging from 600 to 1500 degrees Celsius. Unlike plastic molds, glass molds must withstand intense thermal cycling, highly abrasive conditions, and maintain dimensional stability at elevated temperatures while providing the precise surface finish required for optical clarity and aesthetic appearance of the final glass products.
The primary function of glass molds is to shape and cool molten glass into various products such as bottles, containers, optical lenses, architectural glass, and decorative items. These molds incorporate sophisticated thermal management systems to control the cooling rate of the glass, preventing thermal shock and ensuring proper annealing. The mold design must account for the unique flow characteristics of molten glass, incorporating proper venting, precise parting lines, and specific surface textures that facilitate glass release while maintaining the desired surface quality. Different forming processes such as pressing, blowing, or a combination of both require specific mold designs and features.
Glass molds require materials with exceptional properties to withstand the harsh conditions of glass forming. The mold materials must possess outstanding heat resistance, excellent thermal shock resistance, and superior wear resistance to handle the abrasive nature of molten glass. These materials typically include special alloys that maintain their strength and dimensional stability at high temperatures while providing good thermal conductivity for controlled cooling. The mold surfaces often receive specialized treatments or coatings to enhance their durability, improve release characteristics, and prevent glass sticking. These surface treatments must withstand repeated thermal cycling while maintaining their protective properties throughout the mold’s service life.
Glass Mould Materials
| 2Cr25Ni20Si2 |
Chemical Composition of Glass Mould
| Grade | C | Si | Mn | Cr | Ni |
| 2Cr25Ni20Si2 | ≤0.25 | 1.50~2.5 | ≤1.50 | 24.00~27.00 | 18.00～21.00 |
Available Shapes from Fushun
*Round Bar
*Flat Bar
*Block
*Plate
Contact Information
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