Industry News
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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 -
Metallographic Structure Analysis and Hardness Testing Methods for Ductile Iron
The standard for metallographic inspection of ductile iron is the fundamental basis for ductile iron production, product quality inspection, and quality control. Metallographic analysis and hardness testing can be conducted in accordance with the international standard ISO 945-4:2019 Metallograph...Read more -
Selection of Cutting Blades for Metallographic Cutters
When using a precision metallographic cutter to cut workpieces, it is necessary to select cutting blades that match the material properties of the workpiece based on its different materials, so as to achieve efficient cutting results. Below, we will discuss the selection of cutting blades from th...Read more -
Rockwell Hardness Testing of PEEK Polymer Composites
PEEK (polyetheretherketone) is a high-performance composite material made by combining PEEK resin with reinforcing materials such as carbon fiber, glass fiber, and ceramics. PEEK materials with higher hardness have better resistance to scratching and abrasion, making them suitable for manufacturi...Read more -
Methods and Standards for Hardness Testing of Copper and Copper Alloys
The core mechanical properties of copper and copper alloys are directly reflected by the level of their hardness values, and the mechanical properties of a material determine its strength, wear resistance, and deformation resistance.There are usually the following test methods for detecting the h...Read more -
Selection of Rockwell Hardness Testing for Crankshaft Journals Crankshaft Rockwell Hardness Testers
The crankshaft journals (including main journals and connecting rod journals) are key components for transmitting engine power. In accordance with the requirements of the national standard GB/T 24595-2020, the hardness of the steel bars used for crankshafts must be strictly controlled after quenc...Read more -
Metallographic Sample Preparation Process of Aluminum and Aluminum Alloys and the Metallographic Sample Preparation Equipment
Aluminum and aluminum products are widely used in industrial production, and different application fields have significantly different requirements for the microstructure of aluminum products. For example, in the aerospace field, the AMS 2482 standard sets very clear requirements for grain size ...Read more -
International Standard for Hardness Testing Method of Steel Files: ISO 234-2:1982 Steel Files and Rasps
There are many types of steel files, including fitter’s files, saw files, shaping files, special-shaped files, watchmaker’s files, special watchmaker’s files, and wood files. Their hardness testing methods mainly comply with the international standard ISO 234-2:1982 Steel Files ...Read more -
The Role of Clamps for Vickers Hardness Tester and Micro Vickers hardness Tester (How to Test the Hardness of Tiny Parts?)
During the use of Vickers hardness tester /micro Vickers hardness tester, when testing workpieces (especially thin and small workpieces), incorrect test methods can easily lead to large errors in the test results. In such cases, we need to observe the following conditions during workpiece test: 1...Read more -
How to choose Rockwell hardness tester
There are many companies selling Rockwell hardness testers on the market currently. How to choose the appropriate equipment? Or rather, how do we make the right choice with so many models available? This question often troubles purchasers, as the wide range of models and varying prices make it di...Read more
