Method of Casting Concrete Lofting Platform Using Cast Steel Lofting Platform

Abstract

The invention relates to a method for casting a concrete sample placement platform by utilizing a cast steel sample placement platform. The method comprises the following steps of: a, painting a release agent; b, manufacturing an external mold; c, distributing reinforcing bars; d, hanging the reinforcing bars; e, performing casting; and f, performing curing and de-molding. The method is characterized in that: two-layer casting is performed by utilizing the smooth surface of the conventional cast steel sample placement platform, manufacturing steps are simple, once-casting molding is realized,polishing and grinding steps are saved, the cost of casting raw materials is low, the concrete sample placement platform is rust-resistant, durable and low in cost.

Description

technical field [0001] The invention relates to the field of concrete casting, in particular to a method for casting a concrete lofting platform. Background technique [0002] The lofting platform is a working platform for cutting materials during machining, and has high requirements on the flatness of its surface. In the prior art, most of the stakeout platforms are made of cast steel, which requires high manufacturing precision and a surface finish of ±0.05mm. Usually, 8 detection points are set per square centimeter. After making wooden molds, making sand molds, pouring No. 20 cast iron, cleaning sand and other processes, if there is a controlled cooling condition, the temperature will be slowly cooled from 900 °C after pouring, and it will take 24 hours for the casting to meet the process requirements; if there is no cooling condition and rely on natural cooling It takes nearly a year, and it has to go through polishing and grinding processes. The cast steel stakeout p...

AI Technical Summary

Problems solved by technology

In the prior art, most of the stakeout platforms are made of cast steel, which requires high manufacturing precision and a surface finish of ±0.05mm. Usually, 8 detection points are set per square centimeter. After making wooden molds, making sand molds, pouring No. 20 cast iron, cleaning sand and other processes, if there is a controlled cooling condition, the temperature will be slowly cooled from 900 °C after pouring, and it will take 24 hours for the casting to meet the process requirements; if there is no cooling condition and rely on natural cooling It takes nearly a year, and it also needs to go through polishing and grinding processes

The cast steel lofting platform is easy to rust, heavy in weight, easy to conduct electricity, and has high processing and transportation costs. Even if it adopts an empty stomach structure, it can only reduce a small part of its weight, but the production cost will increase greatly.

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