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What is the working principle of slip blow?

When the slip clamps the pipe string, the piston rod and guide rod of the cylinder move downward to push the support plate downward. The slip body moves downward along the slip seat under the action of self weight and friction between the pipe string and the slip insert, and tightens the clamping pipe string inward. When loosening the pipe string, move the cylinder piston rod and guide rod upward and push the support plate downward. Under the lifting force of connecting rod and pipe string, the slip body opens outward along the chuck seat to loosen the pipe string.

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