1. Produk Lebihview
The Lincoln Electric SHIELDARC 70 Plus EO electrodes are designed for shielded metal arc welding (SMAW) of carbon steel. These 5/32 inch diameter, 14 inch long electrodes are supplied in a 50 lb. sealed can, ensuring optimal condition for use. They are suitable for various welding applications requiring good mechanical properties and ease of use.
Figure 1: A sealed 50 lb. can of Lincoln Electric SHIELDARC 70 Plus EO stick welding electrodes, indicating proper packaging for storage and protection.
2. Maklumat Keselamatan
Welding operations present various hazards. It is imperative to follow all safety precautions to prevent injury or property damage. Always refer to ANSI Z49.1 "Safety in Welding, Cutting, and Allied Processes" and your employer's safety practices.
- Asap dan Gas: Keep your head out of the fumes. Use enough ventilation, exhaust at the arc, or both, to keep fumes and gases from your breathing zone and the general area.
- Kejutan elektrik: Can kill. Do not touch live electrical parts. Wear dry insulating gloves and clothing. Insulate yourself from work and ground.
- Sinar Arka: Can burn eyes and skin. Wear a welding helmet with a proper shade of filter lens to protect your eyes and face. Wear appropriate protective clothing to protect your skin.
- Kebakaran dan Letupan: Welding sparks and hot materials can cause fire or explosion. Keep flammables away from the welding area. Have a fire extinguisher readily available.
- Bahagian Panas: Can cause severe burns. Allow welded materials to cool before handling.
3. Penyimpanan dan Pengendalian
Proper storage is crucial to maintain the quality and performance of welding electrodes. These electrodes are supplied in a sealed can to protect them from moisture absorption.
- Store electrodes in their original sealed container in a dry environment.
- Once opened, store electrodes in a heated cabinet or oven at recommended temperatures (typically 250-300°F / 120-150°C) to prevent moisture pickup, especially in humid conditions.
- Avoid exposing electrodes to extreme temperature fluctuations or direct sunlight.
- Handle cans carefully to prevent damage that could compromise the seal.
4. Persediaan dan Persediaan
Before beginning any welding operation, ensure proper setup of your equipment and workspace.
- Penyediaan Ruang Kerja: Clear the welding area of any flammable materials. Ensure adequate ventilation.
- Alat Pelindung Diri (PPE): Don appropriate PPE, including a welding helmet, flame-resistant clothing, welding gloves, and safety shoes.
- Welding Machine: Connect the welding machine according to the manufacturer's instructions. Ensure proper grounding.
- Pemilihan Elektrod: Select the appropriate electrode holder and ensure a secure connection.
- Base Material Preparation: Clean the base metal thoroughly, removing rust, paint, oil, and other contaminants that could affect weld quality.
5. Arahan Operasi
Follow these general guidelines for effective welding with SHIELDARC 70 Plus EO electrodes:
- Tetapan Semasa: Refer to the electrode manufacturer's recommendations for amperage settings. Start with the lower end of the range and adjust as needed.
- Arc Length: Maintain a short arc length, typically equal to the electrode's core wire diameter, for optimal penetration and bead shape.
- Kelajuan Perjalanan: Maintain a consistent travel speed to ensure proper bead width and penetration. Too fast can lead to narrow, convex beads; too slow can cause excessive buildup and overheating.
- Electrode Angle: Hold the electrode at a slight angle (10-15 degrees) in the direction of travel for most applications.
- Striking an Arc: Use a scratching or tapping motion to strike the arc. Once the arc is established, lift the electrode slightly to maintain the desired arc length.
- Pembuangan sanga: After each pass, allow the weld to cool slightly, then chip away the slag. Ensure all slag is removed before making subsequent passes.
6. Electrode Maintenance
The primary maintenance for these electrodes involves preventing moisture absorption. Once the can is opened, electrodes should be stored in a heated electrode oven to maintain their low hydrogen properties. Electrodes exposed to atmospheric moisture for extended periods may require re-baking according to manufacturer specifications to restore their performance characteristics.
7. Menyelesaikan masalah Isu Biasa
| Masalah | Kemungkinan Punca | Penyelesaian |
|---|---|---|
| Keliangan (small holes in weld) | Moisture in electrode coating, contaminated base metal, insufficient shielding gas (if applicable), incorrect arc length. | Re-bake electrodes, clean base metal, ensure proper arc length. |
| Lack of Fusion | Tidak mencukupi amperage, too fast travel speed, incorrect electrode angle. | Bertambah amperage, decrease travel speed, adjust electrode angle. |
| Percikan Berlebihan | Terlalu tinggi amperage, too long arc length, incorrect polarity. | Kurangkan amperage, shorten arc length, check polarity settings. |
| Arc Instability | Moisture in electrode, poor ground connection, incorrect current. | Re-bake electrodes, check ground clamp, adjust current. |
8. Spesifikasi Produk
- Nombor Model: ED012849
- Jenis Elektrod: SHIELDARC 70 Plus EO
- Diameter: 5/32 inci
- Panjang: 14 inci
- Berat: 50 lb. can
- Pengeluar: Lincoln Electric
- ASIN: B00IPUB4SY
- Tarikh Mula-mula Tersedia: 14 Jun 2012
9. Maklumat Waranti
For specific warranty details regarding Lincoln Electric SHIELDARC 70 Plus EO electrodes, please refer to the official Lincoln Electric website or contact their customer support. Generally, welding consumables are warranted against defects in material and workmanship at the time of shipment.
10. Sokongan Pelanggan
For technical assistance, product inquiries, or support, please contact Lincoln Electric directly:
- Webtapak: www.lincolnelectric.com
- Maklumat Hubungan: Refer to the "Contact Us" section on their official weblaman web untuk nombor telefon dan alamat e-mel khusus untuk rantau anda.
11. Penafian Undang-undang
Kenyataan mengenai suplemen makanan belum dinilai oleh FDA dan tidak bertujuan untuk mendiagnosis, merawat, menyembuhkan atau mencegah sebarang penyakit atau keadaan kesihatan.
Note: This disclaimer appears to be a generic placeholder from the source data and may not be directly relevant to welding electrodes. Users should always consult product-specific safety data sheets (SDS) and manufacturer guidelines for accurate and relevant safety information.
