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Core Hardness Testing by Micro Vickers Hardness Tester
In metal surface strengthening processes such as carburizing, nitriding and induction quenching, the testing of core hardness and hardened layer depth, as well as defects in heat treatment processes, will affect the overall mechanical properties of products. We use a micro Vickers hardness tester...Read more -
Measuring The Hardness Of Ceramic Balls With a Micro Vickers Hardness Tester
Below are the spherical ceramic samples sent by the customer for hardness testing. To accurately measure the surface hardness of the ceramic ball material and ensure precise and reliable test results, we perform hardness testing on the ceramic ball specimens using a micro Vickers hardness teste...Read more -
Installation and Operation of HLN110 Leeb Hardness Tester
To ensure accurate test results, standardized operation, and prolonged service life of the instrument, this document details the core operating procedures of the Leeb Hardness Tester HLN110, including installation, power on, parameter adjustment, and hardness measurement, providing standardized o...Read more -
Enameled Wire Appearance Quality Inspection – Optical Microscope
Enameled wire refers to copper wire or aluminum wire coated with a layer of insulating material, which is mainly used to manufacture electromagnetic coils in electric motors. It consists of two parts: a conductor and an insulating layer. The external insulating layer of enameled wire serves to in...Read more -
Method for Determining the Vickers Hardness Value of Ceramic Samples
As a crucial indicator of the mechanical properties of materials, the hardness of ceramics, along with the accurate determination of ceramic samples’ hardness values and the evaluation of their toughness, serves as a key parameter for measuring the wear resistance and compressive strength o...Read more -
Operation of HB-3000C Digital Brinell Hardness Tester
I.Test Preparation 1.The thickness of the prepared sample shall be no less than 8 times the indentation depth(usually ≥10mm) to prevent the indentation from penetrating the sample or being affected by the support of the bottom surface. 2.Wear protective gloves during handling to avoid direct con...Read more -
Inspection of Surface Defects and Internal Quality of Metal Welds
Metal weld inspection refers to the process of evaluating the quality of welded joints by adopting various testing technologies. Weld quality inspection is a key link to ensure the safety and reliability of engineering structures. Below, the core content of weld quality inspection is systematical...Read more -
Standard Procedure for Weld Penetration Inspection of Copper Sheets–Precision Control of Weld Quality
This inspection is carried out on the copper sheet welding samples entrusted by the customer. Weld penetration is a core indicator for judging the weld strength, crack resistance and connection reliability of welded copper sheets. Accurate measurement of weld penetration can avoid the risks of co...Read more -
Vickers Hardness Testing for HEA
As we all know, adding more types of metals to an alloy tends to embrittle the material. However, high-entropy alloys (HEAs) are different from conventional alloys: they contain multiple metals yet do not exhibit embrittlement, making them a new class of materials. In industrial production, ensur...Read more -
Operation of Model ZXQ-2S Self-produced Automatic Metallographic Mounting Press
Laizhou Laihua Test Instrument Factory is a manufacturing enterprise integrating R&D, production and sales.Our main products include: hardnesstesters and metallographic sample preparation & analysis equipment. Our company has obtained the lSO9001 enterprise management system certification...Read more -
Hardness Testing of Stainless Steel Sheets
Hardness testing of stainless steel sheets is crucial. It is directly related to whether the material can meet the strength, wear resistance, and corrosion resistance required by the design, ensures the stability of the processing technology and the consistency of product batches, and helps enter...Read more -
Hardness Testing of Engine Cylinder Blocks And Cylinder Heads
As core components, engine cylinder blocks and cylinder heads must withstand high temperatures and pressures, ensure reliable sealing, and offer good assembly compatibility. Their technical indicators, including hardness testing and dimensional accuracy testing, all require strict control using p...Read more
