The slitter blade has become our life and an indispensable part of us. The slitter blade is also related to our lives and promotes national finance. How do we check the welding quality of the slitter blade?
Point 1: Check the weld strength: Grind the back of a turning tool with a green silicon carbide grinding wheel, and check the thickness of the solder layer. The thickness is required to be below 0.15 mm.
Point two, check the position of the blade in the slot: if the blade is misaligned and sag exceeds the technical conditions, re-welding should be carried out.
Point three, check the welding strength: use a wooden hammer or a copper hammer to strike the blade with a medium force, or use an I hammer to strike the shank with a strong force. At this time, the blade does not fall off from the slot. To check the welding strength of the blades, it is not necessary to check them one by one, and spot checks are also used.
Point 4: Check the flatness of the blade: If there are obvious pits on the blade, it means that the blade is overheated and deformed, and the new blade should be burned and re-welded.
Key point 5: Check for cracks: After the blade is cleaned with kerosene, if the blade has cracks, the kerosene will penetrate into the cracks and black lines will appear, which can be observed with the naked eye. It can also be observed with a magnifying glass of 10-40 times.
When we all check the welding quality of the slitting machine blade, we need to master the above points, so as to ensure the welding quality of our products.
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