Elongation is the percentage increase of the original length of a rubber sample due to tensile force being applied to the sample itself. Elongation is inversely proportional to hardness, tensile strength, and modulus. That is, the greater a material’s hardness, tensile strength, and modulus, the less it will elongate under stress.

The spread of the novel coronavirus has caused a great impact on global trade. At the same time, in addition to the subsequent shortage of cabinets and a surge in shipping freight, it also affects the difficulties in the import and export of many commodities, causing the prices of commodities used in many products to rise accordingly. This article will classify and elaborate pressure tanks' commodities, steel, plastic, rubber, and carton boxes in separate paragraphs.

Theory of Pressure Controller｜Aquasky

The pressure switch is one of the most commonly used fluid control components. When we are dealing with gas or liquid, we almost all need to control its pressure. We rely on the pressure switch as a safety device. When the measured pressure reaches the rated value, the pressure switch can send out an Alarm or control signal.

The Covid-19 broke out in 2020, and vaccine research has been carried out around the world. It is hoped that the epidemic can be ended as soon as possible and return to normal as usual. The United Kingdom became the first country to start injecting the novel coronavirus vaccine at the beginning of December 2020. So did the United States later. This is the largest vaccination campaign in history, from the United States to China, from the northern hemisphere to the southern hemisphere, has been in full swing.

What is the Pressure Equipment Directive (PED)? ｜Aquasky

Aquasky PED certify by TÜV Rheinland. The most important manufacturing process of the pressure tank is the welding part. There are two parts of welding that need to be certified by the welding test. The stainless steel connector welding and the tank shell circumference welding. Aquasky provides samples for each part, and the part needs to be tested by X-ray to see whether it is perfect welding without any holes. The passed sample allows the welder to get the welding qualification certification from PED.