Here are few examples of strategies you can use depending of your particular situation :

DOTS STRATEGY

When to use it : When your parts are subjected to several impacts, like in crushers.

How to depose it : You need to make a dot the size of about a 2$ coin and the distance between the dots must be half the diameter of the dot. So, if your dot has a diameter of 1’’, the distance between the circles must be at 0,5’’. You must use the same pattern that you find on a dice for the number 5.

Which Sodel products to use : The kind of products to use could be different depending of the base material of your part to be protected, the kind of rocks or soil where your equipment is working and the kind of resistance you are looking for. Contact the Sodel technical team in order to have the right products for your application.

CIRCLES STRATEGY

When to use it : On the side of buckets in a way that the soil stays stuck inside and around the circles to protect the steel. Very useful for city works.

How to depose it : You need to make a circle of about 1” diameter and the distance between the circles must be half the diameter of the circle. So, if your circle has a diameter of 1’’, the distance between the circles must be at 0,5’’. You must use the same pattern that you find on a dice for the number 5.

Which Sodel products to use : The kind of products to use could be different depending of the base material of your part to be protected, the kind of rocks or soil where your equipment is working and the kind of resistance you are looking for. Contact the Sodel technical team in order to have the right products for your application.

LINES STRATEGY

When to use it : Lines can be used to facilitate the flow or to avoid the material from coming out of the bucket depending on their orientation..

How to depose it : When you are mainly working in rocks, the lines are welded along the flow and their spacing depends on the size of the rocks. While when you are mainly working in fine material (sand, soil, small rock, etc.), the lines are welded perpendicular to the flow to retain the material in the bucket.

Which Sodel product to use : The kind of products to use could be different depending of the base material of your part to be protected, the kind of rocks or soil where your equipment is working and the kind of resistance you are looking for. Contact the Sodel technical team in order to have the right products for your application.

DIAMONDS STRATEGY

When to use it : It can be use for multiple situations, it is a combination of the lines and circles strategies.

How to depose it : The lines are welded to make a diamond shape and their spacing depends on the size of the material.

Which Sodel product to use : The kind of products to use could be different depending of the base material of your part to be protected, the kind of rocks or soil where your equipment is working and the kind of resistance you are looking for. Contact the Sodel technical team in order to have the right products for your application.

You can contact our technical support team anytime in order to get the right product and procedure for your application.

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To counter the thermal conductivity, it is important to use a procedure (preheating, heat input, protective gas) enable to transfer enough heat to the welding joint.

Molten copper is very fluid and has to be welded in the flat position. On fillet weld, it is possible to weld it in the horizontal position.

Copper is sensitive to hot cracking when it is cooling down to the solid state. This is mainly occurring with tin bronze, copper-nickel and alloys containing lead. You can improve your chance of success by buttering the face of the chamfer and by peening the weld bead while they are still hot.

Copper reacts easily with oxygen to form porosities, so it is important to ensure of the adequacy of the gas protection.

Here is some reminder on welding with copper alloys

• Weld in flat position whenever possible because of copper’s high fluidity
• Using a support plate will help keep the parts on for better penetration
• Good cleaning before and during welding will help to produce a quality weld
• If there is arc blow while welding dissimilar metals, increase the preheat temperature
• If the part is held in place by a vise or other metal device, preheating such devices will help maintain the temperature of the workpiece when preheating is required
• Heat losses during preheating can be prevented by using a non-flammable, insulating material such as Sodelfix and by placing the workpieces on insulating refractory material.
• When welding dissimilar metals, use the minimum welding currents recommended, whenever possible to minimize dilution
• To join cast iron to copper alloys with Sodel 661, use small diameter electrodes and make small, discontinuous beads.

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