ARTICLES

Laboratory Practical Skills

2026-06-11

Metallographic examination of uniformity of nitriding layer thickness in multiple parts of gears

Gears are key components of transmission, which are subjected to alternating stress and impact loads for a long time, and their tooth surfaces are prone to wear, pitting, and peeling.


2026-06-11

LABTT | Cold Inlay Mold: Diverse Sizes, Suitable for Various Samples

The adaptability of metallographic cold embedding molds directly determines the sampling effect and consumables cost. LABTT supplies multi specification and multi form cold inlaid rubber elastic molds, which can be used with LABTT cold inlaid materials to form regular and bubble free samples.


2026-06-11

LABTT AI Microhardness Tester | One click measurement of multiple samples and teeth, batch generation of N sets of hardness distribution curves

The depth of the hardened layer and the uniformity of hardness distribution of mechanical transmission components such as gears and gear shafts directly determine the service life and safety performance of the entire machine.


2026-06-11

The experimental operation steps and requirements of Vickers hardness tester are explained in one article!

Vickers hardness (HV) has strong universality and high detection accuracy, and is a commonly used hardness testing method for metal materials, heat treatment, and coated components.


2026-06-11

The 'invisible killer' of carburized gears: how to cause early failure due to excessive non horse and internal oxidation?

In the process of gear manufacturing, carburizing heat treatment is a key step in improving surface hardness and wear resistance. However, if there are surface non martensitic structures (non martensite) and excessive internal oxidation after carburizing, the service life of the gear will be greatly reduced, and even early rapid wear may occur, seriously affecting the reliability and safety of the transmission system.


2026-05-29

120 hour ultimate test: 7 types of steel piston materials, who can withstand oxidation the most?

To simulate extreme working conditions, we conducted a 120 hour continuous oxidation test on 7 different steel piston materials.


2026-05-29

LABTTT Metallographic Experiment - Chip Analysis Case Sharing

Customer requirement: There are many small holes on the back of the chip, and there is epoxy adhesive inside the holes.


2026-05-29

Precise cutting and efficient preparation - LABTT automatic cutting sample preparation solution

Today's material preparation laboratories generally face a dual test of quality and efficiency: how to break through the bottleneck of preparation efficiency without sacrificing sample accuracy?


2026-05-29

Detailed Explanation of Full Classification of Hardness Blocks | Essential Standard Accessories for Calibrating Hardness Testers

The core function of the hardness block (standard block) used for calibration is to verify whether the error of the hardness tester during operation is within the range specified by international standards.