What are the Metallographic Sample Preparation Equipment?
Metallographic sample preparation equipment usually includes the following types:
Some Purchasing Guides for Metallographic Grinding and Polishing Machines
The following are some purchasing guides for metallographic grinding and polishing machines: First, clarify your needs and usage scenarios Second, performance parameters Third, operational convenience Fourth, stability and reliabilityCheck whether the structural design of the equipment is stable and whether it operates smoothly and with low noise. Fifth, safety performance…
Types of Hardness Testers
The common types of hardness testers mainly include the following: In the mechanical manufacturing industry, different types of hardness testers may be selected according to different parts and process requirements. For large rough parts, the brinell hardness tester may be used for initial testing first, while for precision parts that…
What is a Vickers Hardness Tester?
A vickers hardness tester is an instrument used for measuring the hardness of materials. It uses a positive quadrangular pyramid diamond indenter with an included angle of 136° between the opposite faces to press into the surface of the specimen with a certain test force. After maintaining for a specified…
How to Choose the Appropriate Rockwell Hardness Tester Based on the Hardness of Materials?
Choosing the appropriate rockwell hardness tester mainly depends on the hardness range and properties of the materials. Here are some reference suggestions: 1. For materials with high hardness, such as quenched steel, cemented carbide, etc., usually, the Rockwell hardness tester with the HRC scale is selected. Because the diamond cone…
The Principle of Rockwell Hardness Tester
The principle of the rockwell hardness tester is based on measuring the indentation depth to determine the hardness of the material. It applies the initial test force and the main test force successively. The role of the initial test force is to ensure good contact between the indenter and the…
