1、 Introduction to Plastic Templates

Plastic formwork is a composite material made by high-temperature extrusion at 200 ℃, which is an energy-saving and environmentally friendly product and an important component of building formwork. It has high turnover times (over 30-50 times), a wide temperature adaptation range, strong specification adaptability, and convenient construction, which can meet the requirements of various rectangular, cubic, L-shaped, and U-shaped building formwork. It has the functions of flame retardancy, anti-corrosion, water resistance, and chemical corrosion resistance. It has good mechanical and electrical insulation properties and can have a normal service life of over 8 years. And it also has the characteristics of good clean water surface effect, light weight, and high strength. It can also be 100% recycled and reused, which is very in line with national policies such as environmental protection and circular economy.

2、 Production process flow of PP hollow building formwork

The raw materials (PP particles and fragments) are continuously fed to the PP hollow template extruder (integrated equipment) through a hopper, and the materials are heated to 160~170 ℃ (automatic temperature controlled electric heating) in an automatic mixing state to soften; This process will generate a small amount of organic waste gas G1 (calculated as non methane total hydrocarbons). The softened material is extruded into a PP hollow template extruder and transported through a conveyor belt to the cooling system for cooling (indirect cooling, cooling water circulation, and regular discharge of a certain amount of cooling water w1) to complete the shaping process. After cutting and trimming, the finished product will be stored in the above process, resulting in a certain amount of unqualified products 51 and leftover materials S2, After being crushed by a grinder, it is comprehensively utilized.