Production Description
CHARACTERISTICS:
THZ308 is pure nickel welding core, strong reduction of graphite type coating iron rod. It can be used in AC and DC dual purpose and is easy to operate. When welding, it is not necessary for weldment to preheat. It has good crack resistance and processability.
RECAUTIONS:
- Before welding, the electrodes need to be baked for 1 hour with the temperature of 150±10℃ before using.
2 It can eliminate welding stress and avoid crack by hammering the welding seam.
- In order to reduce the impurity elements in the base metal penetration weld, narrow white band width, improve crack resistance and processing properties, it should use small current welding in cast iron cold welding.
WELDING POSITIONS: PA, PB
Cast iron electrodes are Fe-C alloys with a mass fraction of carbon greater than 2.14%. In fact, industrial cast iron electrodes are generally multi-element alloys based on Fe-C-Si. Cast iron electrodes are often used to solve the problems of wheel breakage, cracks, wear, and punching holes in engine shells, covers, machine bases, and casting teeth. Soldering problems.
There are roughly three types of cast iron welding: cold welding, semi-hot welding and hot welding. The selection of welding materials is divided into two types: homogeneous welding and heterogeneous welding. At present, China can provide dozens of cast iron electrodes, and we can also choose welding electrodes according to the characteristics of cast iron electrodes, the requirements for welding and repairing parts, the performance of cast iron materials and the importance of welding and repairing parts.
Applicable process of cast iron welding rod.
- Proper surface cleaning must be done before welding, and the welded joint should be obliquely cut into a U-shaped groove.
- Stop crack holes at both ends of the crack to prevent crack expansion during welding.
- When the angle of repair is not good, you can use WE100 welding rod to cold groove to form an effective U-shaped or V-shaped groove.
- Weld with as little current as possible, medium arc length, and slightly inclined to the welding direction.
- It is recommended to use short and thin welding beads and a narrow lateral swing welding torch to fill the weld joint before stopping arc welding. Usually no heat treatment is required and the parts are allowed to cool slowly.
Chemical Composition: %
C |
Mn |
Si |
S |
Fe |
Ni |
The mass of other elements |
≤0.2 |
≤1.0 |
≤2.5 |
≤0.03 |
≤8.0 |
≥90 |
≤1.0 |
WELDING REFERENCE CURRENT: (AC,DC+)
Electrode diameter(mm) |
2.5 |
3.2 |
4.0 |
Welding current(A) |
60-90 |
90-110 |
120-150 |
Specification & Package
2.5mm (3/32”) x 300/350mm; 2.5kgs/box, 20kg(8boxes) per carton.
3.2mm (1/8”) x 350mm; 5kgs/box, 20kg(4boxes) per carton.
4.0mm (5/32”) x 400mm; 5kgs/box, 20kg(4boxes) per carton.
OEM/ODM Package Available:
NW: 20.00KG,GW: 20.40KG,
we also can do different kgs package, plastic bag package,
we can print the package as your requests, we have professional designer to make the package design with your brand & LOGO.
Product Video
Visit & Exhibition
Welcome to visit us for a friendly and long term cooperation, please tell us your time schedule, we will arrange for you. we will also join the relate exhibitions, we can meet each other on the exhibition. Friendship first, and business is professional, you can trust us forever.
Do you have the following trouble when order the products?
1.Is the Supplier Reliable?
We produce this products more than 30 years, we have advertise on Alibaba, Made-in-China, after you place the order, whenever you want to see the production, we can send you video or picture to check. Our export team also have more than 15 years experience, we can solve all the problem you may meet in business. Welcome to visit us.
2.Is the Quality Stable?
We do test randomly in production, and test shipment before ex works. We have professional QC workers and high level test equipment, to assure each shipment in good quality.
3.Is the Payment Safe?
We choose one of the largest bank in China, to assure your payment will arrive in safe condition, and all of the benefit company must send them the shipping document copy to bank for record.
4.Shipment Delivery?
Normally we can arrange shipment in 15 days, if customize the package, shipment can be arranged in one month, please negotiate with our customer service, we will tell you a firm date after check our production and your order quantity.
Please don't hesitate to contact us
Sales Manager: Cherry Zhang
Tel: 0086-311-68035766
Fax: 0086-311-68035566
Mobile: 008613739727566
WhatsApp / Wechat: 008613739727566
Email: info@steeltoolschina.com
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