Table header Tianxing: The great care of multiple crafting processes, the exquisite inside and outside unification guarantees the extremely high reliability of the instrument. High-strength pointer ensures long and incorrect operation with…
Degree is a professional terminology of physics, which refers to the ability of the local material to resist the compressive properties that push onto its surface. There are many kinds of hardness testing approaches, such as: Brinell, Rock…
Portable Webster hardness tester is precise and its service life depends on whether it is maintained right and timely as well as appropriately. During it is being in use, there are the following points that have to be paid attention to: 1.…
Hardness is a professional terminology of physics, which refers to the ability of the local material to resist the comprehensive properties that push onto its surface. There are many kinds of hardness testing approaches, such as: Brinell, …
Portable Webster hardness tester is precise and its service life depends on whether it is maintained right and timely as well as appropriately. During it is being in use, there are the following points that have to be paid attention to: 1.…
1.Definition of anodic oxidization Anodic oxidization is a kind of electrolytic oxidation. In this process the surface of aluminum alloy generally transfers into a oxidation film, which has protection, decoration and some other functions. …
The chemical polishing and chemical transformation of Aluminum ( electric ) 1.The effect of chemical polishing or electro-polishing Chemical polishing is an advanced finishing treatment. It can remove not only the slight mold marks and scr…
Definition and functions of chemical pretreatmentTaking advantage of the technique with chemical solution or solvent to have pretreatment towards the aluminum surface can be effectively remove the greasy dirt、pollutants、natural oxide fil…
The purposes of mechanical pretreatment To provide favorable expressional conditions and raise the quality of surface finish; To level up the products; To reduce the impact of welding; To create the ornamental effect; To acquire a clean su…
The Techniques of the Surface Treatment of Aluminum Alloy Low density The density of aluminum is about 2.7g/cm3, which is the second lightest mental in metal construction , merely going above magnesium. Its density is only one third of iro…
The Webster hardness testing for aluminum alloy material is applied the most in aluminum alloy section factories and aluminum alloy doors, windows and walls in the constructional industry. It is stipulated in the national standard GB/T 523…
HR-Rockwell hardness Rockwell hardness (HR) depend on the indentation plastic deformation depth to determine the hardness value of the index with 0.002 mm as a unit of hardness. When HB> 450 or the sample is too small, Portable Rockwell ha…
In addition to the various precautions used when using a variety of hardness, there are some common issues that should be noted as follows: 1, Rockwell hardness tester itself will produce two kinds of errors: First, the error caused by def…
Portable hardness tester is increasingly widely used because of its small size, light weight, easy to carry, a wide range of detection, easy to operate, high detection speed and so on. What’s more, portable hardness tester can be converted…
With the development of manufacturing, its requirements to the quality of raw materials and parts are getting higher and higher. In metallurgy, electricity, petroleum machinery, rail vehicles, automobiles, military equipment and other fiel…
The quality requirement of petroleum instrument is quite high. Leeb hardness tester and Vicker hardenss tester couldn't meet the test requirements. Generally speaking, users of this kind of equipments would ask the manufacturer to test the…
Static afterburner portable Brinell hardness tester includes C-type Brinell hardness tester, hydraulic Brinell hardness tester and magnetic Brinell hardness tester. American Standard ASTM E110-2012 and China Metallurgical Industry Standard…
Introduction Brinell hardness tester is mainly used for hardness determination of cast iron, steel, nonferrous metals and soft alloy materials. Brinell hardness test is the biggest indentation test of all test method. It is a high accuracy…
Brinell hardness tester application: As the Brinell hardness test use large pressure, large pressure head and large indentation diameter, it is suitable for metal hardness testing of the large grain.Such as cast iron, nonferrous metals and…
Development Trend of National Brinell Hardness Testing Equipment With the rapid development of national manufacturing industry, the on site Brinell hardness testing equipments used in the past have been out of users' producing requirement.…
Hardness is a measure of the softness of the material. There are many different hardness test methods whose principle are definitely different, measured hardness values and meaning are not exactly the same. Brinell hardness(HB), Portable R…
Aluminum hardness is generally measured by Webster hardness tester. National standard GB5237-2004 provides that 6063 aluminum hardness should be greater than 8HW, 6061 aluminum hardness should be greater than 10HW. China Nonferrous Metals …
In addition to the various precautions used when using a variety of hardness, there are some common issues that should be noted as follows: 1, Rockwell hardness tester itself will produce two kinds of errors: First, the error caused by def…
Brinell hardness tester is mainly used for hardness determination of cast iron, steel, nonferrous metals, soft alloys and other materials. Today I will introduce the use of portable Brinell hardness test. 1. Before using portable Brinell h…
Hardness in industry feild refers to mechanical performance index that various mechanical parts should have. It is the resistance capacity to part deformation. The greater the resistance capacity to deformation it is, the higher the hardne…
In the actual testing, many factors would effect the accuracy of the test result, including the following aspects: Whether the Test Force of Instrument is Accurate If the test force increases, the test result will be lower. Otherwise the t…
The structure of Rockwell hardness tester is simple with easy operation, but test hardness value may be inaccurate with long-term improper operation, which will make the product quality is greatly affected result in adverse consequences. N…
There are three kinds of test force which are 3000kgf, 750kgf and 500kgf, and two kinds indenters which are 10mm and 5mm carbide alloy ball indenter. As long as clamping specimen, the test can be finished. The Brinell hardness test methods…
Brinell Hardness Test Technology (2) Static afterburner portable Brinell hardness tester includes C-type Brinell hardness tester, hydraulic Brinell hardness tester and magnetic Brinell hardness tester. American Standard ASTM E110-2012 and …
935 Barcol Impressor is a kind of portable hardness tester, it has the simple operation by just single hand and wide measuring range, no experience to be needed. 935 is mainly used to test soft plastics, lead, tin and other soft metals. 93…
