Process for molding hollow plastic building template

Abstract

The invention discloses a process for molding a hollow plastic building template. The process comprises the following steps: stirring, heating, extruding, setting, performing stress removal treatment, cutting and sealing. The template subjected to extrusion molding is subjected to quick heating and cooling treatment, the internal residual stress is removed, and the setting effect of the template is improved and service life of the template is prolonged; and a notch of the template is subjected to grinding, coating, final pressing and other process steps through a sealing machine, and a sealing strip is adhered to the cut side, so that the cement mortar can be effectively prevented from being poured into the template through the hollow part in the template using process, the service life is prolonged, and due to the test, compared with the non-sealed hollow plastic building template, the sealed hollow plastic building template has the advantages that the strength is improved by three times, and the service life is prolonged by five times under the condition of the same workload, and the practical effect is obvious.

Description

technical field [0001] The invention relates to a molding process and equipment of a hollow plastic building formwork, belonging to the technical field of building formwork. Background technique [0002] The building formwork is a temporary support structure, which is manufactured according to the design requirements, so that the concrete structure and components are formed according to the specified position and geometric size, maintain their correct position, and bear the self-weight of the building formwork and the external load acting on it. Carrying out formwork works can ensure the quality and construction safety of concrete works, speed up the construction progress and reduce project costs. [0003] The emergence of hollow plastic building formwork has promoted the development of the construction industry to a certain extent. Compared with the steel formwork, wood formwork, solid plastic formwork and various composite formwork used in the construction industry in the ...

AI Technical Summary

Problems solved by technology

[0004] The factors that limit the development of hollow plastic building templates in the prior art mainly include the following two points: First: Since the templates form generally large structures, during use, the templates can be cut into different sizes and shapes according to actual needs, cutting The hollow part of the final formwork is easily filled with cement mortar during use, which not only increases the weight of the formwork, but also deforms the formwork, which greatly affects its use effect, and even directly makes the formwork scrapped, which makes the service life of the formwork unreasonable. It is not conducive to the promotion and use of the original advantages of hollow building formwork

Second: Since the formwork adopts water circulation cooling and shaping during the extrusion and shaping stage, only the surface of the formwork is rapidly cooled during the cooling process, and the internal heat cannot be released, resulting in residual stress, which makes the formwork in the later use process. Exposure to the sun and rain will cause thermal expansion and contraction. The template will bulge when it is exposed to sunlight during the day. At night, the temperature will drop and the template will shrink again, which greatly shortens the service life of the template and cannot achieve ideal use. Effect

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