Measuring instrument and measuring method thereof for wet film thickness of three-legged pin type fireproof coating

Abstract

The invention discloses a measuring instrument and a measuring method thereof for the wet film thickness of a three-legged pin type fireproof coating, comprising a top surface, a bottom surface, a measuring arm, and a measuring scale transfer device. The measuring arm has a three-legged structure, an upper end is fixedly connected to the top surface, and the upper end and lower end are provided with stitches for reducing the degree of wet film damage of the fireproof coating. The measuring scale transfer device comprises a scale and a scale pointer, the upper end of the scale is fixedly connected to the top surface, and the upper and lower end is extended into the scale pointer. The scale pointer is supported on the bottom surface and moves along the scale with the sliding up and down of the bottom surface. The bottom surface is placed on the surface of a wet film to be tested of the fireproof coating. A through hole for allowing the lower end of the measuring arm to pass through the bottom surface to penetrate the wet film of the fireproof coating is provided on a position corresponding to the measuring arm at the bottom surface. The bottom surface slides upward with respect to the measuring arm as the measuring arm enters. The invention can obtain the wet film thickness of the fireproof coating layer accurately, quickly and conveniently.

Description

technical field [0001] The invention relates to a measuring tool, in particular to a tripod-type fireproof coating wet film thickness measuring instrument and a measuring method. Background technique [0002] Due to the frequent occurrence of fires, the losses caused are extremely serious. In order to reduce the losses caused by fires, fire-resistant coatings are more and more widely used in modern engineering. During the construction of fire retardant coatings, it is very important to control the thickness of the coating (unless otherwise specified, dry film thickness) according to the coating design requirements. If the coating thickness is lower than the design requirements, the surface of the substrate cannot be coated If it is effectively covered, its service life will be shortened, and it will not meet the requirements of fire prevention; if the coating thickness is higher than the design requirements, there will be a risk of incomplete curing of the coating, and even ...

AI Technical Summary

Problems solved by technology

During the construction of fire retardant coatings, it is very important to control the thickness of the coating (unless otherwise specified, dry film thickness) according to the coating design requirements. If the coating thickness is lower than the design requirements, the surface of the substrate cannot be coated If it is effectively covered, its service life will be shortened, and it will not meet the requirements of fire prevention; if the coating thickness is higher than the design requirements, there will be a risk of incomplete curing of the coating, and even defects such as blistering and cracking of the coating (such as figure 1 and figure 2 shown)

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