It is very important to test the hardness of the anchor working clip. The clip needs to have a certain hardness during use to ensure the reliability and durability of its function. Laihua Company can customize various special clamps according to needs, and can use Laihua’s hardness tester for hardness testing.
The hardness test standard of the anchor clip generally refers to:
1. Rockwell hardness GB/T 230.1-2018
This standard adopts the Rockwell hardness test method and the HRC Rockwell hardness scale for testing, This test method is simple to operate and is the optimal choice for customers
2. Brinell hardness GB/T231.1-2018.
This standard uses the Brinell hardness HB scale for testing.
The evaluation standard refers to:
GB/T 14370-2015 or JT/T 329-2010.
Due to the particularity of the shape of the anchor clip, according to the customer’s clip taper size and clip inner diameter size, when purchasing a hardness tester, it is necessary to customize professional tooling as required to ensure the accuracy of the measured value and extend the service life of the hardness tester. If necessary, please feel free to mail samples for testing.
Method for testing the fracture toughness of cemented carbide tools by Vickers hardness (useVickers hardness tester):
The hardness of cemented carbide should generally be tested using the Rockwell hardness A scale. When the thickness of the workpiece or sample is less than 1.6 mm, the Vickers hardness method can be used for testing. So what is the method for testing the fracture toughness of cemented carbide tools?
Fracture toughness test standard and fracture toughness test method implementation standard for cemented carbide tool base materials: JB/T 12616—2016;
The test method is as follows:
First, make the workpiece to be tested into a sample, then polish the surface of the sample into a mirror surface, and place it under the microhardness tester to produce an indentation on the polished surface with the conical diamond indenter of the hardness tester, so that prefabricated cracks are generated at the four vertices of the indentation.
The fracture toughness value (KIC) is calculated based on the indentation load P and the indentation crack extension length C.
Laizhou Laihua Testing Instrument Factory is always available to answer any questions you have。
Post time: Oct-25-2024
