Author - upwelltest

What’s the ring stiffness mean?

What’s the ring stiffness mean?

The ring stiffness of a tube can be defined as its ability to resist radial forces acting on it and its resistance to ring deflection and structural damage. Buried pipelines such as sewers and water pipes are subject to soil pressure, hydrostatic pressure and traffic load.     Before burying, test to determine the ring stiffness of the pipe to ensure that the pipe material used can withstand the expected soil conditions and loads during burial. It is recommended to conduct a [...]

2020-10-05 By News Read more...
tensile testing machine

The factors affecting the accuracy and life of the tensile testing machine

The tensile testing machine is a high-precision, high-tech material testing equipment, which can be used to perform tensile, compression, bending, shearing, peeling and other mechanical performance tests on metallic and non-metallic materials. The reason why it has become the main equipment for material testing is that it has the advantages of easy operation and high precision. However, if we buy a tensile testing machine of poor quality because of the price, then the test data may be inaccurate. If the [...]

2020-10-04 By News Read more...
Hydraulic tensile testing machine

How To Keep The Hydraulic Universal Testing Machine Clean

The hydraulic universal testing machine has very high accuracy requirements. If the hydraulic universal testing machine cannot be guaranteed to be clean and dust-free, and dust enters the hydraulic system, it will cause very serious consequences such as clogging the valve hole and scratching the piston surface. Therefore, we should ensure that the hydraulic pressure The cleanliness of the universal testing machine, then in addition to cleaning the surface dust, what else do we need to do? With this [...]

2020-09-28 By News Read more...
Hydraulic Universal Testing Machine

Tensile Testing Machine manual/Instructions

Tensile testing machine is also called universal material testing machine or tensile machine. It adopts mechatronics design and consists of main part, mechanical part, hydraulic system, force measurement system, etc. The force measurement system is mainly composed of force sensor, transmitter, micro The processor, load drive mechanism, computer and color inkjet printer constitute.     Tensile testing machine Application   Tensile testing machine can be used for tensile test of mesh rope, textile, metal rod, waterproof material, rubber, wire and cable, plastic, metal wire, [...]

2020-09-27 By News Read more...
Hydraulic Universal Testing Machine

Common Errors And Reasons In The Test Results Of Hydraulic Universal Testing Machine

The hydraulic universal testing machine is a common experimental instrument. During the inspection process, the staff generally report that a certain amount of error will occur. What is the cause of the test error of the hydraulic universal testing machine? 1. Environmental humidity changes The environmental humidity sometimes affects some characteristics of the sample, which makes the experimental results substandard 2. Negligence error: errors caused by errors in the test work, negligence and other reasons. This kind of error is irregular and [...]

2020-09-25 By News Read more...