1High temperature contact angleSummary
High temperature contact angle(Contact angle) refers to the tangent line of the gas-liquid interface made at the intersection of gas, liquid, and solid phases. This tangent line forms an angle θ between the liquid side and the solid-liquid boundary line. Contact angle measurement is currently the main method for surface performance testing.
The high-temperature and high vacuum contact angle measuring instrument adopts the principle of optical imaging to measure the surface contact angle, wetting performance, interfacial tension, surface energy and other properties of the sample under high temperature conditions through image contour analysis. The equipment is usually used to detect the surface properties of metal materials, with high cost-effectiveness, stable heating, high vacuum degree, comprehensive functions, and can meet various research needs of metal materials.

2. Application
1. Metallurgy industry: Analyze the surface tension values of molten materials such as steel, aluminum, and copper under high temperature conditions; Based on the analysis of contact angle and surface tension, control the reasonable wetting range and find effective methods to remove furnace scale during the smelting process
2. Welding industry: Analyze the contact angle value between the solder and the welded body, as well as the surface tension of the solder melt, in order to effectively improve the welding strength
3. Alloy industry: Analyze the surface tension values of material components to improve the degree of mutual bonding between alloy materials
4. Pottery and glass industry: Monitor the contour changes of the entire process from sintering, softening, melting to liquefaction during the heating process, and analyze the surface tension values of ceramics or glass
5. Enamel: Analysis of surface wettability of glaze to enhance surface strength of glaze
6. Coal and electricity industry: Analyze the surface tension value of coal, control reasonable wettability, and effectively remove furnace scale
7. Other tests for high temperature requirements: Analyze the surface tension values of the melt and the contact angle values between the melt and solid materials, and analyze the surface tension and contact angle values that vary at different temperatures or over time.

Three,HARKE-HTV1801Product parameters of high temperature and high vacuum contact angle measuring instrument

lSample table size mm: 40 * 40

lContact angle measurement range: 0-180 °

lContact angle measurement accuracy: ± 0.1 °

lSurface/Interface Tension Test Range: 0-5000 mN/m

lOptical system: 0.7X-5X high-definition card zoom lens

lVideo System: Digital USB 3.0 Conventional Camera

lInstrument dimensions (mm): 600 * 800 * 1200

lCamera movement stroke: 200mm

lInstrument weight: 100kg

lMeasurement software: HARKE-HTV1.0

lPower supply: 220V 30A50Hz

lMeasurement temperature: Room temperature~1500 ℃

lUltimate vacuum degree: 1 * 10^-5Pa

lMeasurement method: Seat drop method