Thermoset Plastic Mould Tool Steel
Fushun are main manufacturer of tool steel for Thermoset Plastic Mould.
What is Thermoset Plastic Mould?
A thermoset plastic mold is a specialized tooling designed specifically for processing thermoset materials, which undergo an irreversible chemical reaction during the molding process. These molds are engineered with unique features to accommodate the curing characteristics of thermoset plastics, including precise temperature control systems, optimized venting, and specific surface finishes. Unlike thermoplastic molds, thermoset molds must manage both the physical shaping and the chemical curing process of the material.
The primary function of thermoset molds is to facilitate the complete curing and shaping of thermoset materials while maintaining precise dimensional control. These molds are designed to operate at specific temperature ranges that activate the cross-linking reaction in thermoset materials, transforming them from a liquid or semi-solid state into permanently hardened products. The molds incorporate sophisticated heating systems, pressure control mechanisms, and carefully engineered flow paths to ensure uniform curing and prevent premature hardening of the material before it fills the cavity completely.
Thermoset molds require specialized materials and construction features to handle the unique challenges of processing these reactive materials. The mold materials must exhibit exceptional chemical resistance to withstand the aggressive nature of uncured thermoset compounds, excellent thermal conductivity for precise temperature control, and superior wear resistance to maintain surface quality over numerous production cycles. These molds often feature special surface treatments and coatings to prevent material adhesion and enhance release properties, as thermoset materials can be particularly challenging to separate from mold surfaces once cured. The mold design must also account for the exothermic reactions that occur during curing, incorporating proper cooling systems to manage heat distribution.
Thermoset Plastic Mould Materials
| — | — | 1.2825 | 95MnWCr5 | MnCrWV |
| — | — | 1.2824 | 70MnMoCr8 | 7CrMn2Mo |
| H11 | SKD6 | 1.2343 | X37CrMoV5-1 | 4Cr5MoSiV |
| H13 | SKD61 | 1.2344 | X40CrMoV5-1 | 4Cr5MoSiV1 |
| — | — | 1.1191 | C45U | SM45 |
| — | — | — | SM50 | |
| — | — | SM55 | ||
| P20 | — | 1.2311 | 35CrMo7 | 3Cr2Mo |
Chemical Composition of Thermoset Plastic Mould
| Grade | C | Si | Mn | Cr | W | Mo | V |
| MnCrWV | 0.90～1.05 | 0.10～0.40 | 1.05～1.35 | 0.50～0.70 | 0.50～0.70 | 0.05～0.15 | |
| 7CrMn2Mo | 0.65～0.75 | 0.10～0.50 | 1.80～2.50 | 0.90～1.20 | 0.90～1.40 | ||
| 4Cr5MoSiV | 0.33～0.43 | 0.80～1.20 | 0.20～0.50 | 4.75～5.50 | 一 | 1.10～1.60 | 0.30～0.60 |
| 4Cr5MoSiV1 | 0.32～0.45 | 0.80～1.20 | 0.20～0.50 | 4.75～5.50 | 1.10～1.75 | 0.80～1.20 | |
| SM45 | 0.42～0.48 | 0.17～0.37 | 0.50～0.80 | ||||
| SM50 | 0.47～0.53 | 0.17～0.37 | 0.50～0.80 | ||||
| SM55 | 0.52～0.58 | 0.17～0.37 | 0.50～0.80 | — | |||
| 3Cr2Mo | 0.28～0..40 | 0.20～0.80 | 0.60～1.00 | 1.40～2.00 | 0.30～0.55 |
Properties of Thermoset Plastic Mould Steel
| Grade | Annealed HBW |
| MnCrWV | ≤255 |
| 7CrMn2Mo | ≤235 |
| 4Cr5MoSiV | ≤229 |
| 4Cr5MoSiV1 | ≤229 |
| SM45 | 155～215 |
| SM50 | 165～225 |
| SM55 | 170～230 |
| 3Cr2Mo | 235 |
Available Shapes from Fushun
*Round Bar
*Flat Bar
*Block
*Plate
Contact Information
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