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Carbon Composite HP-CRTM Solution

High-pressure resin metering and surface injection coordinated with compression-RTM tooling and press movement.

Process configuration

High-Throughput Consolidation for Oversized Structural Composites

High-pressure resin metering and surface injection coordinated with compression-RTM tooling and press movement.

Equipment and process scope

Resin preparation, metering/mixing skid, tool injection interfaces and coordinated controls. Press, preform handling, mold and material validation are agreed external scope.

Validation and production planning

The stated 12–20 MPa is the metering/impingement circuit, distinct from cavity pressure. The supplied sub-120-second reference covers complete loading-to-demolding with the selected resin, tooling, cure and handling sequence; it is not an injection-only or universal cycle rating.

The stated 12–20 MPa is the metering/impingement circuit, distinct from cavity pressure. The supplied sub-120-second reference covers complete loading-to-demolding with the selected resin, tooling, cure and handling sequence; it is not an injection-only or universal cycle rating.

Process configuration

Turnkey Large-Area HP-CRTM Manufacturing Workflow

The sequence describes the supplied configuration. Final settings, cycle boundaries and acceptance are defined for the selected material and tooling. The stated 12–20 MPa is the metering/impingement circuit, distinct from cavity pressure. The supplied sub-120-second reference covers complete loading-to-demolding with the selected resin, tooling, cure and handling sequence; it is not an injection-only or universal cycle rating.

01

Carbon Preform Loading & Micro-Gap Setting

Supplied process reference: The 3D carbon preform (NCF fabrics, V_f ≥ 55%) is placed in the tool; the press closes to a 1.2 mm micro-gap under 0.05 kPa vacuum.

TOOL GAP 0.5–2.0 MM; CAVITY VACUUM < 0.05 KPA; CONFIRM FOR SELECTED MATERIAL AND TOOLING
02

18 MPa High-Pressure Impingement Metering

Supplied process reference: Servo axial piston pumps meter fast-curing epoxy at 18.0 MPa under Coriolis feedback, holding stoichiometric accuracy within ±0.2%.

WORKING PRESSURE 15.0–20.0 MPA; RATIO TOLERANCE ±0.2%; CONFIRM FOR SELECTED MATERIAL AND TOOLING
03

Low-Drag Surface Resin Distribution

Supplied process reference: The tool-mounted head dispenses 2,650 g in 9.5 seconds for the selected surface-distribution sequence. Fiber displacement is assessed on the actual preform and tool.

SHOT WEIGHT 2,650 G; INJECTION TIME 8–11 S; CONFIRM FOR SELECTED MATERIAL AND TOOLING
Process configuration

Reference Solution Engineering Envelope

Supplied configuration and validation references; material/component results are separate from equipment ratings.

ParameterValue / UnitApplicable Configuration / Conditions
Molded Component Surface AreaUp to 3.52 m² (2,200 mm× 1,600 mm)Oversized structural composite battery trays and floor pans; configuration-specific reference or part acceptance target
Hydraulic Compaction VelocityUp to 300 mm/sFast-acting 3,000-ton servo press with active parallel leveling; configuration-specific reference or part acceptance target
Injection Delivery Flow Output20.0 to 300.0 g/sContinuous variable servo-hydraulic impingement proportioner; configuration-specific reference or part acceptance target
Micro-Gap Dynamic Positioning0.5 to 2.0 mm (Tolerance ±0.02 mm)Optical linear scale closed-loop press position feedback; configuration-specific reference or part acceptance target
Mold Cavity Evacuation LevelDown to 0.05 kPa (Absolute)High-speed multi-stage vacuum pump with tool silicone seals; configuration-specific reference or part acceptance target
Total Part Molding Cycle TimeLess than or equal to 120 secondsFrom preform loading to demolding with fast-cure epoxy; configuration-specific reference or part acceptance target
The stated 12–20 MPa is the metering/impingement circuit, distinct from cavity pressure. The supplied sub-120-second reference covers complete loading-to-demolding with the selected resin, tooling, cure and handling sequence; it is not an injection-only or universal cycle rating.

Core Equipment for This Solution

Resin preparation, metering/mixing skid, tool injection interfaces and coordinated controls. Press, preform handling, mold and material validation are agreed external scope.

Core Advantages of Haifeng HP-CRTM Systems

Configured equipment functions and interfaces for the selected material and tooling.

Fiber Displacement Control

Micro-gap surface distribution and the compression stroke are coordinated to manage preform movement; zero fiber displacement is not guaranteed.

High-Throughput 120s Cycles

The supplied 120-second complete-cycle reference uses its specified resin, cure, press and handling sequence; press speed alone does not establish cycle time.

35% Weight Reduction vs Metal

The supplied 35% tray-weight comparison concerns the stated aluminum baseline and composite design, not a machine-wide or vehicle-wide guarantee.

Defined Porosity Acceptance

The supplied below-0.5% laminate porosity reference requires a defined quantitative method and part acceptance; cavity vacuum alone does not establish aerospace qualification.

Related review draft

Related Project Draft

The related carbon-tray brief reports its own complete cycle, weight baseline and inspected component configuration.

Review Project
Planning questions

Frequently Asked Questions

How does HP-CRTM differ from standard HP-RTM when molding large panels? +
HP-RTM injects into closed tools; HP-CRTM injects into a 1.2 mm gap before vertical press compaction.
Why is 4-corner active leveling required on the hydraulic press? +
Press platens must remain parallel within ±0.02 mm under 3,000 tons to prevent uneven laminate thickness.
What maintains continuous vacuum sealing during the 1.2 mm micro-gap state? +
Multi-lip inflatable silicone gaskets along the mold perimeter maintain 0.05 kPa vacuum during the gap stroke.
Can this solution mold complex stepped geometries with variable thickness? +
Yes, preforms can be tailored with staggered core plies, and the press compaction adapts to regional densities.

Discuss Your Production Goals

Share your product or drawing, material system, target output, automation needs and factory utilities so the equipment and interfaces can be configured.

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