Company News
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The 8th Second Session National Technical Committee for Standardization of Testing Machines was successfully held
The 8th Second Session and Standard Review Meeting hosted by the National Technical Committee for Standardization of Testing Machines and organized by Shandong Shancai Testing Instruments was held in Yantai from Sep9 to Sep12.2025. 1.Meeting Content and Significance 1.1...Read more -
Testing Method for Oxide Film Thickness and Hardness of Automobile Aluminum Alloy Components
The anodic oxide film on automobile aluminum alloy parts acts like a layer of armor on their surface. It forms a dense protective layer on the aluminum alloy surface, enhancing the corrosion resistance of the parts and extending their service life. Meanwhile, the oxide film has high hardness, wh...Read more -
Selection of Test Force in Micro-Vickers Hardness Testing for Metallic Surface Coatings such as Zinc Plating and Chromium Plating
There are many types of metallic coatings. Different coatings require the different test forces in microhardness testing, and test forces cannot be used randomly. Instead, tests should be conducted in accordance with the test force values recommended by standards. Today, we will mainly introduce ...Read more -
Mechanical Testing Method for Cast Iron Brake Shoes Used in Rolling Stock (Brake Shoe Selection of Hardness Tester)
The selection of mechanical testing equipment for cast iron brake shoes shall comply with the standard: ICS 45.060.20. This standard specifies that the mechanical property testing is divided into two parts: 1.Tensile Test It shall be carried out in accordance with the provisions of ISO 6892-1:201...Read more -
Hardness testing of rolling bearings refers to the International Standards:ISO 6508-1 “Test Methods for Hardness of Rolling Bearing Parts”
Rolling bearings are core components widely used in mechanical engineering, and their performance directly affects the operational reliability of the entire machine. The hardness testing of rolling bearing parts is one of the indicators to ensure the performance and safety. The International Sta...Read more -
Advantages of Large Gate-type Rockwell Hardness Tester
As a specialized hardness testing equipment for large workpieces in the industrial testing field , the Gate-type Rockwell hardness tester plays a key role in quality control of large metal products such as steel cylinders. Its core advantage is its ability to a...Read more -
New Update of Automatic Vickers Hardness Tester – Head automatic Up & Down Type
The Vickers hardness tester adopts diamond indenter, which is pressed into the surface of the sample under a certain test force. Unload test force after maintaining a specified time and measure the diagonal length of the indentation, then Vickers hardness value (HV) is calculated according to the...Read more -
Rockwell hardness tester for batch hardness testing of parts
In modern manufacturing, the hardness of parts is a key indicator to measure their quality and performance, which is crucial for many industries such as automobiles, aerospace, and mechanical processing. When faced with large-scale hardness testing of parts, the traditional multi-device, multi-ma...Read more -
Technical analysis of large and heavy workpiece hardness testing equipment selection
As we all know, each hardness test method, whether Brinell, Rockwell, Vickers or portable Leeb hardness tester, has its limitations and is not omnipotent. For large, heavy and irregular geometric workpieces such as the one shown in the following example, many current tes...Read more -
Gear steel Sampling process–precision metallographic cutting machine
In industrial products, gear steel is widely used in power transmission systems of various mechanical equipment due to its high strength, wear resistance and fatigue resistance. Its quality directly affects the quality and life of the equipment. Therefore, the quality co...Read more -
Hardness test of anchor workpiece and fracture toughness Vickers hardness test of cemented carbide tool
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 f...Read more -
Hardness testing method of steel pipe by Laizhou Laihua Testing Instrument Factory
The hardness of a steel pipe refers to the material's ability to resist deformation under external force. The hardness is one of the important indicators of material performance. In the production and use of steel pipes, the determination of their hardness is very import...Read more
