The difference between a coating thickness gauge and a non-destructive coating thickness gauge
The main differences between coating thickness gauges and non-destructive coating thickness gauges are as follows. Coating thickness gauges and non-destructive coating thickness gauges are both used to measure the nominal thickness of materials. However, there are certain differences between coating thickness gauges and non-destructive coating thickness gauges. Below we will introduce in detail the difference between coating thickness gauges and non-destructive coating thickness gauges.
The difference between coating thickness gauge and non-destructive coating thickness gauge:
Coating thickness gauge is mainly used in the surface treatment industry to measure the coating thickness on metal or plastic surfaces.
Non-destructive coating thickness gauges are divided into two types: magnetic and eddy current. There are also magnetic and eddy current two-in-one dual-use types. It is often used to measure the thickness of the surface coating where the substrate is metal, so it is also called a coating thickness gauge.
The magnetic thickness gauge is designed to measure the thickness of coatings on magnetic metals such as steel (coatings except magnetic metals, such as steel and nickel), but cannot measure coatings on non-magnetic copper, aluminum, tin, etc. The eddy current thickness gauge is designed to measure the thickness of the insulation layer on non-magnetic metals, such as copper and aluminum (the coating must be non-conductive material).
The difference between magnetic (iron-based) and eddy current (non-iron-based) coating thickness gauges
Coating thickness gauge magnetic (iron-based) measures the thickness of non-magnetic coatings (such as aluminum, chromium, copper, enamel, rubber, paint, etc.) on magnetic metal substrates (such as steel, iron, alloys and hard magnetic steel, etc.)
Coating thickness gauge eddy current (non-ferrous based) measures the thickness of non-conductive coatings (such as enamel, rubber, paint, plastic, etc.) on non-magnetic metal substrates (such as copper, aluminum, zinc, tin, etc.).
Magnetic (Iron-based) Type F:
Measuring the thickness of non-magnetic coatings on steel, iron and other ferromagnetic metal substrates, such as: paint, powder, various anti-corrosion coatings, plastics, rubber, synthetic materials, phosphate layers, chromium, zinc, lead, tin, cadmium wait;
Eddy current (non-ferrous based) N type:
Measure the thickness of all non-conductive layers on non-ferromagnetic substrates such as copper, aluminum, stainless steel, such as: paint, powder, various anti-corrosion coatings, plastics, rubber, synthetic materials, phosphate layers, oxide layers, etc.;
