Aluminized steel fastener type scaffold steel pipe and preparation method thereof

Abstract

An aluminized steel fastener type scaffold steel pipe comprises a scaffold steel pipe body. The scaffold steel pipe body is sequentially divided into a base body layer, an iron-and-aluminum alloy layer and an aluminum layer from inside to outside, the thickness of the iron-and-aluminum alloy layer is 14-29 micrometers, and the thickness of the pure aluminum layer is 15-100 micrometers. A preparation method of the aluminized steel fastener type scaffold steel pipe includes the following steps of using a common seamless or seamed steep pipe as a workpiece, drying and unoiling the workpiece, acid cleaning and removing rust, washing, activating the surface, promoting permeation, drying, and rapidly aluminizing in an induction mode. The scaffold steel pipe with the aluminized surface is acquired through the steps. The mechanical performance of the aluminized steel fastener type scaffold steel pipe can be guaranteed, the excellent corrosion resistant performance is possessed, the service life is long, and using cost of the scaffold steep pipe is reduced.

Description

technical field [0001] The invention relates to the field of scaffolding steel pipes, in particular to an aluminized steel fastener-type scaffolding steel pipe and a preparation method thereof, which are suitable for fastening-type scaffolding steel pipes for construction of buildings (buildings and mining), and are mainly used as construction aids for buildings. For example, vertical poles, horizontal poles, sweeping poles, and wall poles of fastener-type steel pipe scaffolding. Background technique [0002] Scaffolding refers to various supports erected on the construction site to facilitate the operation of workers and solve vertical and horizontal transportation. It is usually used in places where exterior walls, interior decoration, and high heights cannot be directly constructed. [0003] Common types of scaffolding include fastener type, door type, bowl buckle type, and buckle plate type. Among them, the portal scaffolding is named after the main frame in the shape o...

AI Technical Summary

Problems solved by technology

At present, fastener-type scaffolding steel pipes in the domestic market generally use Q235 ordinary steel pipes, which have poor anti-rust ability. However, scaffolding steel pipes are exposed to air and rain for a long time, and the corrosion is very severe, which has seriously affected the strength of scaffolding steel pipes. The collapse accidents of construction scaffolding are all caused by the corrosion of scaffolding steel pipes that have not been detected and prevented in time

[0007] At present, the commonly used anti-rust method for scaffolding in the market is to straighten and spray anti-rust paint when the construction is completed every time it is disassembled and put into storage, which wastes man-hours and the cost of spraying anti-rust paint is high

In addition, because workers often use actions such as throwing and throwing when placing scaffolding steel pipes, they seldom handle them with care, so the anti-rust paint is easy to fall off in the collision and has no anti-rust effect.

At the same time, spraying anti-rust paint brings the defect of reduced anti-skid ability, and the stability of the fastener scaffolding strongly depends on the friction between the fastener and the steel pipe wall. The surface roughness of the anti-rust paint is small. In order to achieve the same stability, A larger tightening force is required, causing deformation of the steel pipe of the scaffold, which brings potential safety hazards

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