Novel heat shrinkage sleeve production process

Abstract

The invention relates to a novel heat shrinkage sleeve production process, which comprises: 1) taking out a plastic base material and a molten glue to produce semi-finished materials respectively compounded into a substrate layer and a molten glue layer, and preparing heat shrinkage tape finished products having different widths and different lengths according to diameter requirements; 2) cutting the heat shrinkage substrate, and peeling the substrate layer and the molten layer of the compounded double-layer heat shrinkage tape; 3) carrying out electric heat binding on both ends of the substrate / the substrate through equipment; 4) carrying out pressing type cooling on the substrate parts after the heat binding to achieve the temperature requirement suitable for the next process; 5) carrying out air heat binding on the cooled base material and the first layer molten glue; 6) carrying out air heat binding on the first layer molten glue and the second layer molten glue; and 7) finishing the molten connection side end. According to the present invention, with the novel heat shrinkage sleeve production process, the shrinkage rate of the heat shrinkage tape is effectively solved, the production efficiency is substantially improved, and the market prospect is broad.

Description

technical field [0001] The invention relates to a manufacturing process of plastic products, in particular to a manufacturing process of a novel heat shrinkable sleeve. Background technique [0002] In the mid-to-late 1990s, the oil and gas industry began to apply heat shrinkable products, and later expanded to urban gas pipelines, water pipelines and other fields. At present, the equipment for producing heat-shrinkable tapes is relatively backward in technology, which affects the production of heat-shrinkable products and seriously restricts the development of the industry. In the existing technology, when producing heat shrinkable sleeves, it relies on stretching when producing PE substrates, and glues them after radiation irradiation to become heat shrinkable products. However, due to the low level of automation, it is impossible to form an accurate control of the shrinkage rate, which is about 20- Within 30%, the shrinkage is unstable, resulting in slow construction, ti...

AI Technical Summary

Problems solved by technology

At present, the equipment for producing heat-shrinkable tapes is relatively backward in technology, which affects the production of heat-shrinkable products and seriously restricts the development of the industry.

In the existing technology, when producing heat shrinkable sleeves, it relies on stretching when producing PE substrates, and glues them after radiation irradiation to become heat shrinkable products. However, due to the low level of automation, it is impossible to form an accurate control of the shrinkage rate, which is about 20- Within 30%, the shrinkage is unstable, resulting in slow construction, time-consuming, energy-consuming, poor quality and reliability of coating, and affecting the quality of the project