ER4043 Aluminum-Silicon Welding Wire
Core Advantages: Excellent Hot Crack Resistance | Easy Slag Removal | Multi-Specification Adaptation | ISO/CE Certification | OEM Customization Supported
1. Product Overview
ER4043 is a versatile aluminum-silicon welding wire launched by Hangzhou Dayang Welding (Ocean Welding), specially designed for aluminum and aluminum alloy welding. Its deposited metal not only has excellent hot crack resistance but also ensures stable mechanical strength. It can effectively solve the welding problems of crack-prone materials such as heat-treatable strengthened aluminum alloys, and is widely applicable to TIG welding and oxy-acetylene gas welding scenarios. It is the preferred welding material in industries such as automobile manufacturing, aerospace, and medical equipment.
2. Core Product Parameters
| Category | Specific Parameters |
|---|---|
| Basic Information | Origin: Zhejiang, China Brand: Ocean Welding Model: ER4043 Product Name: Aluminum Alloy Welding Electrode Material: Aluminum/Aluminum Alloy Color: White Type: Titania-Calcium Type |
| Specification & Size | Diameter: 2.0mm, 2.5mm, 3.2mm, 4.0mm Length: 300mm-500mm (adjustable on demand) |
| Welding Parameters | Operating Current: 50-240A Welding Current for 2.5mm Specification: 50-80A Operating Temperature: 60-90℃, 90-120℃, 120-150℃ (multi-range adaptation) |
| Certification & Service | Certification: ISO, CE International Certification OEM: Customization Supported Sample: Trial Available (freight collect) Purchase Method: Wholesale, Retail (discounts available) |
3. Chemical Composition Table
| Element | Content Range |
|---|---|
| Silicon (Si) | 4.5%-6.0% |
| Iron (Fe) | ≤0.6% |
| Aluminum (Al) | Remainder (Rem) |
4. Application Scenarios
1. Automobile Manufacturing Industry
Application Parts: Aluminum alloy body frames, anti-collision beams, engine compartment components, wheel hubs
Core Value: Adapts to the lightweight demand of automobiles. The welded welds have high strength and can withstand impacts and vibrations during driving. For the complex curved surfaces and thin-walled structures of wheel hubs, 2.0-3.2mm specification wires can be used to precisely control the penetration depth, balancing load-bearing performance and surface flatness.
2. Aerospace Field
Application Parts: Aerospace aluminum alloy brackets, aircraft fuselage skins, engine heat dissipation components, satellite precision frames
Core Value: Meets the reliability requirements in extreme environments. The low risk of hot cracks can reduce the welding deformation of the skin. The 2.0mm small-diameter wire is suitable for small precision components, ensuring dimensional accuracy and fatigue resistance, and complying with the strict standards for high-altitude flight.
3. Rail Transit & Medical Equipment
Rail Transit: Aluminum alloy bodies, door frames, and seat brackets of high-speed trains/subways. The welds are resistant to vibration and temperature changes, avoiding cracking during long-term operation and ensuring driving safety.
Medical Equipment: Aluminum alloy surgical instruments and rehabilitation equipment frames. The easy slag removal feature reduces subsequent grinding processes, and no harmful impurities remain, complying with medical and health standards.
4. Electronic Equipment & General Manufacturing
Electronic Equipment: Aluminum alloy heat sinks and laptop casings. Small-diameter (2.0mm/2.5mm) wires enable precision welding. Low-current operation reduces thermal impact on electronic components, and the appearance matches the base material well.
General Manufacturing: Aluminum alloy door and window frames, furniture brackets, and industrial equipment casings. High cost-effectiveness and easy operation reduce labor costs. It supports bulk purchasing and OEM customization, adapting to large-scale production needs.
5. Usage & Operation Points
Pre-Welding Cleaning: It is essential to thoroughly remove the oxide film and oil stains from the edge of the workpiece and the surface of the welding wire (mechanical grinding combined with a dedicated aluminum cleaning agent is recommended). This prevents the oxide film from hindering bonding and oil stains from causing pores/inclusions.
In-Welding Assistance: A backing can be used to support the molten metal during welding, especially for thin-walled or long-span welds. This prevents metal loss and ensures regular weld formation and compliance with size requirements.
Special Welding Requirements: When using oxy-acetylene gas welding, it is necessary to use aluminum gas welding flux to remove oxidation products during welding, improve the fluidity of the molten pool, and enhance weld quality.
6. Purchasing & Cooperation
Supplier Information: Hangzhou Dayang Welding Material Co., Ltd. (Professional Manufacturer/Supplier)
Core Advantages: Direct supply from the original factory, low price and high quality; complete supply chain, supporting small-batch retail and large-batch wholesale; regular discount activities to reduce procurement costs.
Contact Channel: Visit the official website www.hzdayang.com to obtain the latest quotations and customization plans; consult for details such as sample trials and OEM cooperation.
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