INDUSTRY COMPONENT

Connection Head/Thread

A precision threaded connection component in stopper rod systems for regulating molten metal flow in continuous casting.

View Specifications

Component Specifications

Definition
The Connection Head/Thread is a critical interface component in stopper rod systems used in continuous casting operations. It provides the mechanical and sealing connection between the stopper rod and the flow control mechanism, enabling precise regulation of molten metal flow from the tundish to the mold. This component must withstand extreme thermal cycling, mechanical stress, and corrosive environments while maintaining dimensional stability and leak-tight performance.
Working Principle
The Connection Head/Thread operates by providing a secure mechanical interface that transmits vertical movement from the actuator to the stopper rod tip. When the actuator rotates or lifts, the threaded connection converts this motion into precise vertical displacement of the stopper rod, which regulates the nozzle opening and controls molten metal flow rate. The thread design ensures repeatable positioning and maintains alignment under thermal expansion conditions.
Materials
High-temperature alloys (typically Inconel 600/601, 310 stainless steel, or refractory materials), with hardness requirements of 30-45 HRC. Must maintain mechanical properties at 800-1200°C operating temperatures.
Technical Parameters
  • Thread Type Metric fine thread (M24x1.5 to M36x2) or ACME thread
  • Concentricity ≤ 0.05 mm
  • Thread Length 40-80 mm
  • Maximum Torque 150-300 Nm
  • Surface Finish Ra ≤ 3.2 μm
  • Tolerance Class 6g/6H or tighter
  • Operating Temperature 800-1200°C
  • Thermal Expansion Coefficient Match with stopper rod material
Standards
ISO 965-1, DIN 13, ISO 286-2, ASTM A297

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Connection Head/Thread.

stopper rod connection casting thread component high-temperature thread molten metal flow control continuous casting parts refractory connections steel casting components Connection Head/Thread Connection Head/Thread in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Stopper Rod (Stopper Rod System)

A refractory-lined rod used to control the flow of molten metal from a ladle or tundish in continuous casting operations.

View Product Details

Engineering Analysis

Risks & Mitigation
  • Thread galling under high temperature
  • Thermal fatigue cracking
  • Misalignment causing flow control inaccuracies
  • Corrosion from slag/metal contact
  • Mechanical failure under cyclic loading
FMEA Triads
Trigger: Thermal cycling causing differential expansion
Failure: Thread seizure or binding
Mitigation: Use matched thermal expansion materials, apply high-temperature anti-seize compounds, implement controlled heating/cooling cycles
Trigger: Inadequate thread lubrication at high temperatures
Failure: Increased wear and reduced service life
Mitigation: Apply specialized high-temperature lubricants, implement regular maintenance schedules, monitor torque values during operation
Trigger: Misalignment during installation
Failure: Premature thread wear and flow control inaccuracies
Mitigation: Use alignment fixtures during installation, implement laser alignment checks, train operators on proper installation procedures

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Thread tolerance per ISO 965-1: 6g for external threads, 6H for internal threads. Concentricity tolerance ≤ 0.05 mm. Surface finish Ra ≤ 3.2 μm.
Test Method
Dimensional verification with thread gauges, thermal cycling tests (5 cycles minimum), torque testing to 150% of maximum operating torque, leak testing at operating temperature simulation

Buyer Feedback

★★★★☆ 4.6 / 5.0 (15 reviews)

"Great transparency on the Connection Head/Thread components. Essential for our Machinery and Equipment Manufacturing supply chain."

"The Connection Head/Thread we sourced perfectly fits our Machinery and Equipment Manufacturing production line requirements."

"Found 13+ suppliers for Connection Head/Thread on CNFX, but this spec remains the most cost-effective."

Related Components

Machine Frame
The rigid structural foundation of a CNC wood router that provides stability, vibration damping, and precision alignment for cutting operations.
pH Sensor Assembly
Precision pH sensor assembly for automated monitoring and dosing systems in industrial applications
Load Cell Assembly
Precision load cell assembly for automated powder dispensing systems
Dust Collection Port
A dust collection port is a critical component in automated powder dispensing systems that captures airborne particulates at the source to maintain clean air quality and prevent cross-contamination.

Frequently Asked Questions

What is the primary function of the Connection Head/Thread in stopper rod systems?

It provides the mechanical interface that transmits precise vertical movement from the actuator to the stopper rod tip, enabling accurate control of molten metal flow in continuous casting operations.

Why are specific thread tolerances critical for this component?

Tight tolerances (6g/6H or better) ensure precise positioning repeatability, prevent backlash in flow control, maintain alignment under thermal expansion, and ensure leak-tight performance in high-temperature environments.

What materials are typically used for Connection Head/Thread components?

High-temperature alloys like Inconel 600/601 or 310 stainless steel are common, selected for their ability to maintain mechanical properties at 800-1200°C while resisting thermal fatigue and oxidation.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Get Quote for Connection Head/Thread

Connection Flange Connection Interface