A jig for testing the heat and humidity resistance of metal plates

Abstract

The invention discloses a clamp for detecting the humidity resistance of sheet metal. The clamp comprises a bracket, a first vise, a second vise and a digital tension meter, wherein the first vise, as well as the second vise, comprises a clamping plate and a plurality of spacer blocks capable of sliding forwards and backwards. By adopting the structure, the digital tension meter is used to enable a pulling force born by sheet metal to be monitored at any time, and the actual pulling force born by the sheet metal in the rolling process can be simulated. The sheet metal to be detected are positioned between the clamping plates and the spacer blocks or between two of the spacer blocks, damp and hot gas in the damp and hot environment easily passes through two pieces of sheet metal to be detected, so that the actual humidity resistant environment in which the sheet metal to be detected are positioned can be simulated. Therefore, the tested humidity resistance data can reflect the actual corrosion degree of the sheet metal. In addition, the clamp is reasonable in structural design; the sheet metal to be detected can be clamped or removed cushily so long as the clamping plates slightly move forwards and backwards, so that the operation is convenient.

Description

technical field [0001] The invention relates to a testing device for metal plates, in particular to a jig for testing the damp and heat resistance performance of metal plates. Background technique [0002] Fingerprint-resistant continuous hot-dip galvanized sheet is a product with fingerprint-resistant treatment on the surface of continuous hot-dip galvanized sheet. It is mainly used in the manufacture of computer cases, servers, and back panels of home appliances. The surface resistance to humidity and heat is one of the main indicators to measure the quality of the fingerprint-resistant continuous hot-dip galvanized sheet. The purpose is to detect whether the surface of the steel coil is corroded when it is transported and stored in a humid and hot environment. [0003] At present, the general method for testing the resistance to heat and humidity of fingerprint-resistant continuous hot-dip galvanized sheets is as follows: place a single piece or stack of metal sheets to b...

AI Technical Summary

Problems solved by technology

Therefore, the test data of the tested heat and humidity resistance still cannot reflect the actual problems. It is easy to appear that the metal plate has no problem in the heat and humidity resistance test and is judged to be qualified, but the plate surface is corroded during the actual transportation and storage process.

[0010] 3. The structural design is unreasonable, and it is very inconvenient to use: there are lock nuts and lock bolts around the metal plate. Every time it is placed, all the lock nuts and lock bolts must be unscrewed, and then the upper layer The splints are removed to allow the sheet metal to be placed

The whole operation is cumbersome, labor-intensive, and very inconvenient to use

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