The equipment is designed according to the international coating stain resistance experimental method, the water Tank volume is 5L, the inner diaMeter of the flow pipe is 8mm, and the time control range is 0~ 99h99s. It is suitable for the stain resistance test of building exterior coatings.
Double grinding head assembly configuration, total weight 1500g, Reciprocating Frequency 37 +/- 2 times/min, Travel 300mm, can accurately evaluate the stain resistance of the film.
The equipment has a 15-liter large-capacity water Tank and an 8mm inner diaMeter water pipe, supports 0 to 99 hours of time control, adopts stainless steel structure and automatic control device, and is suitable for coating stain resistance testing.
Using stain removal rate evaluation method, scruf speed 37cpm, load 1000g, can accurately adjust the liquid Flow rate, by measuring the reflection coefficient changes to evaluate the stain resistance of coatings.
Adopt stainless steel water Tank structure, equipped with 8mm inner diaMeter flow pipe, support 0-99 hours time control, can realize automatic flushing and multi-directional test of sample.
High Accuracy Time Controller and Solenoid Valve are used to automatically control the flushing time. The water Tank and pipe fittings are made of stainless steel, resistant to corrosion, small in size and light in weight, easy to install and operate, and the time control range is 0-100 hours.
Smooth matte surface does not contain plasticizer, reflectance < 4%, thickness 0.25 +/- 0.02mm, to ensure test data Repeatability and comparability, in line with national standards.
4-Terminal Resistance Measuring method is used to eliminate the influence of wire resistance. Test speed is up to 6 times/sec. Measurement current is less than 100mA to prevent temperature drift and ensure Precision and Stability.
Using 2-wire method and 3-wire method measurement, Ground Voltage Measurement range 0~ 200V, Ground Resistance Measurement range 0~ 1999 Ω, Response Time about 5 seconds, with continuous measurement and overload protection function.
With four adjustable friction Frequency 21/43/85/106cpm, friction load 20N, support linear reciprocating friction movement, power-off memory function to ensure that paraMeters are not lost, effective analysis of coating adhesion and wear resistance performance.
The use of national standard 06Cr19Ni10 stainless steel precision machining, high temperature resistance up to 300 ℃, low temperature resistance to -100 ℃, hardness ≤ 187HB, with acid and alkali resistance, grinding anti-sinking, anti-stick, suitable for dry grinding and wet grinding.
With two test stations, the load range is 50~ 1000g, and three typical wear resistance tests of alcohol, eraser and pencil can be carried out, which is suitable for wear resistance evaluation of various coatings and materials.
Can reduce the contact resistance of 35~ 95% and temperature rise of 35~ 85%, high temperature resistance up to 200 ℃, with anti-oxidation, anti-corrosion performance, suitable for a variety of metal connections, improve safety and stability.
Conical mandrel size is 3.1~ 38 mm, length 203 mm, stainless steel material, wear resistance and corrosion resistance, can test the bending performance of steel, aluminum alloy and plastic sample, easy to operate.
Steel ball diaMeter 1mm needle, load range 0-2000g, through the minimum load of the film to accurately determine the coating resistance to penetration, traverse speed 30-40mm/s to ensure the test Stability.
