Method for manufacturing one-piece-formed glass magnesium flue air pipe

Abstract

The invention discloses a method for manufacturing a one-piece-formed glass magnesium flue air pipe, which comprises the following steps: 1, jointing tree strip plates to form a grooved external mold with two side plates and a bottom plate; 2, brushing demolding agent on the inside surface of the external mold and laying medium-alkali or alkali-free fiberglass mesh; laying a layer of glass magnesium production material in a thickness which is equivalent to the thickness of the thinnest part of the glass magnesium flue air pipe on the internal bottom of the external mold; 4, placing a cylindrical core mold in the external mold; 5, filling glass magnesium production material in the external mold till the core mold is covered; and 6, obtaining the one-piece-formed glass magnesium flue air pipe after the glass magnesium production material in the external mold is stable and cured. The glass magnesium flue air pipe manufactured by the method disclosed by the invention can be formed in one piece, the production process is simplified, and the production efficiency is improved. The flue air pipe manufactured by the method has high overall strength, and the service life of the flue air pipe is prolonged.

Description

technical field [0001] The invention belongs to a manufacturing method of an air duct, and in particular relates to a manufacturing method of a once-formed glass magnesium flue duct. Background technique [0002] Glass magnesium board has excellent properties such as natural, environmental protection, fire prevention, high fire resistance, oil resistance, energy saving, material saving, high strength, good wear resistance, etc., and is widely used in various fields of national economic construction. For example, the exhaust pipes of residential kitchens and bathrooms have always used traditional Portland cement pipes. Due to poor fire resistance and fire resistance, fire accidents have occurred to varying degrees in major cities in China. The cement pipes are not resistant to collisions and are heavy. Transportation, installation and construction are inconvenient, especially not suitable for the needs of high-rise buildings, and have been gradually replaced by new glass magn...

AI Technical Summary

Problems solved by technology

The production of glass magnesium air ducts by traditional technology has high investment costs, high labor intensity, waste of materials, and low efficiency. Moreover, the overall strength of the produced pipes is limited, not resistant to collisions, and the rigidity and stability of the pipes cannot be guaranteed.

Another defect of the traditional process is that, because the pH value of the glass magnesium material is generally between 8 and 9, which is weakly alkaline, it has a rusting effect on the nails or steel nails, and also has a negative effect on the overall rigidity and stability of the pipeline. Adverse effects, affecting the service life of the pipeline

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