Production technology of delayed bonding prestressed tendon

Abstract

The invention discloses a production technology of delayed bonding prestressed tendon. Prestressed tendon sequentially passes a delayed coagulation adhesive coating device, an outer coated sheath extrusion forming machine, an outer coated sheath indenting machine and a cooling device; the delayed coagulation adhesive coating device coats a delayed coagulation adhesive coating on the outer surfaceof the prestressed tendon, so as to form prestressed tendon with delayed coagulation adhesive coating; the outer coated sheath extrusion forming machine coats a plastic sheath outside the prestressedtendon with delayed coagulation adhesive coating, so as to form the prestressed tendon with plastic sheath; the outer sheath intending machine presses the plastic sheath of prestressed tendon into corrugated indentation, so as to form the prestressed tendon with plastic sheath with indentation; and the prestressed tendon with plastic sheath with indentation is cooled by a cooling device, so as toform the slow bonding prestressed tendon. Thus, the production technology of slow bonding prestressed tendon of the invention adopts mechanized production way, labour intensity is low, production efficiency is high, and product quality can be guaranteed.

Description

technical field [0001] The invention relates to a production process of slow bonding prestressed tendons. Background technique [0002] Slowly bonded prestressed tendon is a new technology in my country's prestressed technology. It has both simple and easy process characteristics and excellent mechanical properties in use. Slowly bonded prestressed tendons are composed of prestressed tendons, plastic sheaths wrapped around prestressed tendons, and slow gel adhesives sandwiched between prestressed tendons and plastic sheaths. The outer surface of the plastic sheath has a concave-convex shape. Scoring, in which the retarding gel adhesive has a certain fluidity and good adhesion to steel in the early stage of construction. As time goes by, the retarding gel adhesive gradually solidifies and produces adhesion between the prestressed tendons and the plastic sheath. When the retarding gel adhesive After complete curing, the slow-bonded prestressed tendons pass through the embeddi...

AI Technical Summary

Problems solved by technology

[0003] At present, the production of slow bonded prestressed tendons adopts a manual production method, which has high labor intensity, low production efficiency, and no guarantee of product quality.

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