TiN Coated H13 Sprue Bushings for Die Casting Molds
Critical die casting mold components used to guide molten metal from the injection system into the mold cavity. Installed at the mold entrance, these sprue bushings ensure smooth and controlled metal flow while protecting the mold structure from wear and thermal damage.
Product Overview
Manufactured from H13 hot-work tool steel and enhanced with Titanium Nitride (TiN) coating, these sprue bushings provide superior resistance to heat, erosion, and metal adhesion. The TiN coating improves surface hardness and reduces friction, helping maintain stable metal flow during high-pressure die casting operations.
These components are widely used in aluminum, zinc, and magnesium die casting molds, ensuring reliable gating performance and extended mold service life.
Product Features
- Manufactured from H13 hot-work tool steel
- TiN (Titanium Nitride) PVD coating for enhanced surface hardness
- Excellent resistance to thermal fatigue and erosion
- Reduced friction and improved molten metal flow
- Precision CNC machining and grinding
- Suitable for long-cycle high-pressure die casting molds
- Dimensional tolerance up to ± 0.005 mm
- Custom sizes and geometries available
Applications
Aluminum Die Casting Molds
Provide stable molten aluminum flow from the injection system into the mold runner.
Zinc Die Casting Molds
Support precise and smooth metal feeding for zinc die casting molds.
Magnesium Die Casting Molds
Suitable for magnesium alloy molds requiring excellent heat resistance.
High-Pressure Die Casting (HPDC) Systems
Essential components in HPDC molds that guide molten metal into the cavity.
Mold Gating System Components
Installed at the mold entrance to protect the runner system and improve metal flow efficiency.
Precision Manufacturing Capabilities
- High-precision CNC turning and milling
- Wire EDM and EDM machining
- Precision grinding and polishing
- Professional vacuum heat treatment
- PVD TiN coating technology
- Custom manufacturing according to drawings
- Dimensional tolerance control up to ± 0.005 mm
Performance Advantages
Improved Wear Resistance
TiN coating significantly increases surface hardness and resistance to molten metal erosion.
Better Metal Flow Stability
Smooth internal surfaces help guide molten metal efficiently into the mold runner system.
Extended Mold Life
Durable materials reduce wear at the mold entrance area.
Reduced Maintenance Frequency
High durability lowers replacement frequency and mold maintenance costs.
Reliable High-Volume Production
Designed to perform consistently in continuous die casting production cycles.
Quotation Requirements
To provide an accurate quotation for custom TiN coated sprue bushings, please provide the following information:
- 2D drawings or 3D CAD files
- Sprue bushing dimensions and tolerances
- Required material (H13 or equivalent)
- Surface treatment requirements (TiN coating or others)
- Order quantity
- Application type (aluminum, zinc, or magnesium die casting)
Frequently Asked Questions
What is the function of a sprue bushing in a die casting mold?
A sprue bushing guides molten metal from the injection nozzle into the mold runner system while maintaining alignment and sealing.
Why is TiN coating used on sprue bushings?
TiN coating improves surface hardness, reduces friction, and enhances resistance to molten metal erosion.
Why is H13 steel suitable for die casting mold components?
H13 tool steel provides excellent heat resistance, toughness, and thermal fatigue resistance, making it ideal for high-temperature die casting processes.
Can sprue bushings be customized?
Yes. Sprue bushings can be manufactured according to custom mold designs, drawings, and dimensional requirements.
What tolerance can be achieved?
Our machining capability allows dimensional tolerances up to ± 0.005 mm for die casting mold components.
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