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Professional Aluminum Thermal Welding Flux & Full-Set Welding Solution for continuous welded rail

With the continuous upgrading of global railway, subway and urban rail transit infrastructure, high-precision, high-strength and high-stability rail joint welding has become an essential part of track laying and daily maintenance. Our company provides a complete one-stop thermit welding solution, including professional Aluminum Thermal Welding Flux, matched welding consumables, dedicated welding equipment, full sets of construction tools and standardized on-site operating procedures, helping global construction teams achieve fast, safe and high-quality rail welding.

1. High-Performance Aluminum Thermal Welding Flux


Our self-developed Aluminum Thermal Welding Flux adopts optimized high-purity chemical formula, featuring stable combustion reaction, sufficient heat release, excellent molten steel fluidity and low impurity content. It can form dense, smooth and high-strength welding joints, fully meeting international railway track welding standards. The product is applicable to various rail models, suitable for new track laying, track renovation, emergency repair and daily track maintenance projects.

2. Complete Supporting Welding Consumables

To ensure consistent welding quality, we support full set matched consumables for thermit welding:

• Special rail Aluminum Thermal Welding Flux

• Disposable welding crucible

• High-temperature ignition matches

• Special welding sand mold

• Sealing sand for mold sealing

All consumables are strictly tested for moisture resistance, compression resistance and high-temperature stability, effectively avoiding welding defects such as air holes, slag inclusion and insufficient fusion.

3. Professional Welding Equipment

Our matched welding equipment ensures stable gas supply, accurate temperature control and efficient preheating effect during construction:

• Oxygen pressure regulator and oxygen flow meter

• Oxygen delivery hose

• Propane pressure reducer and propane gas hose

• Special rail welding preheater and preheater bracket

The equipment features simple installation, accurate pressure and flow adjustment, uniform flame heating, which greatly improves the overall welding qualification rate.


4. Full Set of On-Site Operation Tools

We provide complete supporting construction tools for on-site rail alignment, fixing, welding, deslagging, demolding and finishing:

• Rail aligner, alignment straightedge and measuring ruler

• Bow clamp, sand mold frame and crucible bracket

• Crucible cover, slag receiving bucket and slag removal rod

• Stopwatch for precise timing

• Wrenches, crowbars, hammers, wire brushes and inclined irons

• Fire extinguisher for construction safety protection

• Rail cutting machine, rail welding router and track grinding machine with grinding wheels

The full-tool configuration realizes standardized, integrated and efficient on-site operation.



5. Main Technical Parameters of III 60DE and 50DE Type Aluminum Thermal Welding Flux:

Item\Value\Model

Iron III 50 DE

Iron III 60 DE

Application

Suitable for U75V material, also meets the welding requirements of U71Mn and U76NbRE rails

Adopted Process

Iron III DE series Aluminum Thermal Welding Flux welding process

Pouring Method

Self-melting

Reserved Rail Gap

26±2 mm

Weld Hardness (HB)

P±20 (P is the hardness of the base metal)

Static Bending Breaking Load

≥900 KN

≥1200 KN for 880MPa grade rail, ≥1300 KN for 980MPa grade rail

Fatigue Load

50KN/250KN, no fracture after 2×10⁶ cycles

70KN/350KN, no fracture after 2×10⁶ cycles

 6. Welding Process:

7. Operation video:


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CONTACT US

Name: Ms. Zhang

Mobile:+86-13222235952

Whatsapp:+86-13222235952

Email:sales@to-rail.com

Add:Room B1701, Building 4, Dongfang Xintiandi, Yangshe Town, Zhangjiagang, Suzhou City, Jiangsu Province, China