WISDOM Hardfacing Consumables Band saw blade application

Types and welding process for sawteeth

Our WD-Co1, WD-Co12, Iron based rod are widely used in band saw blade, the rod size is from 2.7-6.4mm, they are commonly used to extend the useful life. Welding process including TIG, OXY-acetylene, ERW and PTA.

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Frequent questions in application

1. Sparking

Reason:

For the final some kgs out from melting furnace, the steel water is less, and impurity increase by sediment. The purity of rod is not so good, so last some rods had spark situation.

Solution:

Maintain same steel water in the continuous casting. And do some adjustment of chemical composition.

2. Couldn’t go through feeder smoothly in automatic machine

Reason:

Final process for rod is straighten, and the rod is suitable for hand welding, but automatic machine has higher requirements of the straightness.

Solution:

After getting detailed application information from customer, we do extra control of straightness. This issue has been totally avoided by us.

3. Pinhole after welding

Reason:

Sometimes customers do not provide enough information of their welding process, for example: PTA automatic welding machine with special welding current and gas flow.

Solution:

After collecting enough information, our engineer will control the chemical composition and provide exact material according to PTA automatic welding machine with special welding current and gas flow.