Composite plastic big-canopy framework and production technique thereof

Abstract

The invention relates to a compound plastic framework and its producing technics, which has a perfect pressure resistance, and a good wet enduration and with a long life. It mainly comprises: mountain meal, haloid piece, fiberglass, and additive in order to improve the density, flexibility. The producing technics is: adding water to the haloid piece to produce a haloid piece liquid with a Baume's scale of 24-28 DEG; and adding it into the mountain meal of 120-300 masses, blending uniformly to form a paste; adding the additive into above paste to form a rare paste; delivering the rare paste and fiberglass into a pressing equipment; and covering a plastic film like column at the outlet of the pressing equipment; forming a column-shaped soft semi-finished article with a surface of plastic film after pressing; cutting the length of the semi-finished article based on the needed length of production for framework and putting it in the die of the framework; molding by 3-5 hours under 15-35 DEG C.

Description

technical field [0001] The invention relates to a plastic greenhouse framework and a production process thereof required by planting and breeding industries, in particular to a composite plastic greenhouse framework and a production process thereof. Background technique [0002] With the development of modern agricultural planting technology, plastic greenhouses are increasingly widely used in agricultural production, and there are two main types of greenhouse skeletons as the main materials for building plastic greenhouses: one is made of bamboo and wood, and the other is Made of steel pipes; although bamboo and wood are relatively easy to make, they are perishable and have a short service life. Generally, they need to be replaced after two years of use. It is easy to rust and rot when used in a specific high-temperature and high-humidity environment, and the load-bearing and compressive capacity is also low. It is often crushed and collapsed in heavy snow, especially after...

AI Technical Summary

Problems solved by technology

[0002] With the development of modern agricultural planting technology, plastic greenhouses are increasingly widely used in agricultural production, and there are two main types of greenhouse skeletons as the main materials for building plastic greenhouses: one is made of bamboo and wood, and the other is Made of steel pipes; although bamboo and wood are relatively easy to make, they are perishable and have a short service life. Generally, they need to be replaced after two years of use. It is easy to rust and rot when used in a specific high-temperature and high-humidity environment, and the load-bearing and compressive capacity is also low. It is often crushed and collapsed in heavy snow, especially after rust and corrosion, the load-bearing and compressive capacity is rapid. Reduced, the service life is also shorter, generally four to five years can no longer be used; in order to improve the performance of the plastic greenhouse skeleton, at present, the domestic market appears composite plastic greenhouse skeleton, but due to the lack of production technology, the cross-sectional area of ​​the skeleton increases , low load-bearing and compressive capacity, poor moisture resistance and anti-corrosion performance, short service life and other defects, it has not been popularized and applied