-
drefsvfgbjhtzr ha inviato un aggiornamento 2 anni, 4 mesi fa
“Nowadays, PPR is the most commonly used material for pipes and fittings. PPR is a random copolymer polypropylene. In winter, the flexibility of PPR water pipes will decrease, while the rigidity will increase and flatten. If the pipe is impacted by an external force, the surface of the pipe will crack more seriously.
Therefore, PPR Pipe…[Leggi tutto]
-
drefsvfgbjhtzr ha inviato un aggiornamento 2 anni, 4 mesi fa
“Slewing Bearings, or turntable bearings, are ball or roller style bearings composed of two concentric rings either of which may include a gear. This type of bearing enhances load support and power transmission in all directions, and is typically employed to support heavy loads for slow applications and large equipment such as earth excavators and…[Leggi tutto]
-
drefsvfgbjhtzr ha inviato un aggiornamento 2 anni, 4 mesi fa
“Axial vs Centrifugal Fans
There are two primary varieties of fan, axial fans and centrifugal fans. Pelonis Technologies, Inc. (PTI), a global leader in fan technology for more than 25 years, manufactures both axial and centrifugal fans. The design and function of a centrifugal fan is very different from those of an axial fan. Their differences…[Leggi tutto]
-
drefsvfgbjhtzr ha inviato un aggiornamento 2 anni, 4 mesi fa
“A cartooning machine, sometimes called a cartoner for short, is a type of packaging machine. Its sole purpose is to form cartons. Have you ever seen a milk carton? If you look at the average milk carton in the grocery store, a cartooning machine probably made it. A cartooning machine forms cartons that stand up straight, close, are folded,…[Leggi tutto]
-
drefsvfgbjhtzr ha inviato un aggiornamento 2 anni, 4 mesi fa
“For a SBR Rail and Block or a TBR Rail and Block, there are many linear materials may be needed. Linear bearings are definitely one of them.
Linear bearings generally use a pad, bushing, or roller system to carry a load on a rail that need not be a straight line. The rail can be most any length, although that dimension is limited by the…[Leggi tutto]
-
drefsvfgbjhtzr ha inviato un aggiornamento 2 anni, 4 mesi fa
“Metal honeycomb substrates used in catalytic converters are made from extremely thin metal foil, typically with a thickness of just 0.05mm. By comparison the walls of a ceramic substrate may be four times thicker. For this reason, metal substrates offer less resistance to gas flow and therefore can accommodate a given flow rate with a lower…[Leggi tutto]
-
drefsvfgbjhtzr ha inviato un aggiornamento 2 anni, 4 mesi fa
“What is Energy Storage Systems?
Energy Storage Systems are the set of methods and technologies used to store energy. The stored energy can be drawn upon at a later time to perform useful operation.
For instance, many renewable energy sources (such as wind, solar energy or solar energy, tides) are intermittent. Sometimes the use of…[Leggi tutto]
-
drefsvfgbjhtzr ha inviato un aggiornamento 2 anni, 4 mesi fa
“Nowadays, there are many kinds of knitting machines existing in the market. The most common one is sweater knitting machine.
Sweater knitting machine also referred to as flat bed or v-bed knitting machine. That have two rib gated, diagonally-approaching needle beds, set at between 90 and 104 degrees to each other and are positioned so that…[Leggi tutto]
-
drefsvfgbjhtzr ha inviato un aggiornamento 2 anni, 4 mesi fa
“Conveyors are material handling systems that allow for easy transporting of products, from powder to bulk to complicated geometries. They are integral to all kinds of systems, as they provide a fast and safe method of handling large volumes of materials. There are many kinds of conveyors, but their working principle remains constant across each…[Leggi tutto]
-
drefsvfgbjhtzr è diventato un membro registrato 2 anni, 4 mesi fa
-
drefsvfgbjhtzq ha inviato un aggiornamento 2 anni, 4 mesi fa
“Application of shallow air flotation for water treatment
The advantages and disadvantages of traditional air flotation and shallow air flotation were compared. The effect of shallow air flotation on acrylic fiber wastewater treatment was studied through the wastewater treatment project of a chemical fiber corporation in Jilin province. The…[Leggi tutto] -
drefsvfgbjhtzq ha inviato un aggiornamento 2 anni, 4 mesi fa
“POCT in Developing Countries
Point of Care Technology (POCT) means acquiring clinical parameters from the place where the patient is, thus generating faster test results leading to a faster turnaround time. However, improvements in patient outcomes depend on how healthcare delivery professionals and system utilize faster turnaround times. Thus,…[Leggi tutto] -
drefsvfgbjhtzq ha inviato un aggiornamento 2 anni, 4 mesi fa
“Advantages and Disadvantages of a Lathe Machine
A lathe machine is a commonly used machine that works through removing the undesired material from a rotating workpiece with a cutting tool that is fed against the work either crosswise or longitudinally to give its desired shape and size. This is also known as the “mother of all machines” and due…[Leggi tutto] -
drefsvfgbjhtzq ha inviato un aggiornamento 2 anni, 4 mesi fa
“What is the difference between flatbed semi trailer and flatbed drawbar trailer?
Many people will ask what is the difference between a drawbar flatbed trailer and a flat bed semi trailer. In fact, a full trailer and a semi-trailer are only connected differently than the traction car in front. Below we will introduce the difference between a…[Leggi tutto] -
drefsvfgbjhtzq ha inviato un aggiornamento 2 anni, 4 mesi fa
“Baby Wipes: Keeping Your Baby’s Skin Clean and Healthy
Baby wipes have become an essential part of daily life for many families. As their use has expanded with time, Pampers Baby Wipes have continually improved to meet changing consumer needs, with notable advances in skin health features.Gentle Care for Diapered Skin
The skin around a…[Leggi tutto]
-
drefsvfgbjhtzq ha inviato un aggiornamento 2 anni, 4 mesi fa
“WHY PEOPLE CHOOSE ALUMINIUM TRUSS RATHER THAN IRON TRUSS
Aluminum truss is a important structural material for event stages, It plays a main role in the truss works. Above all, safety comes first in all around a event, especially for the stage, thus the quality of the truss is the key point. Why in these days, more and more event organizers and…[Leggi tutto] -
drefsvfgbjhtzq ha inviato un aggiornamento 2 anni, 4 mesi fa
“Introduction To Splitters
Early microscopes were essentially a tube through which light travels (Figure 1A), from a sample to the eye (or a camera), through some lenses. Modern microscopes have a variety of objectives, mirrors, and pinholes in order to obtain the best image (Figure 1B). The component of interest here is the beam splitter. -
drefsvfgbjhtzq ha inviato un aggiornamento 2 anni, 4 mesi fa
“Double-twist stranding machines, high-performance twisting machines
Double Twist Stranding Machineare effective, compact production units primarily for use in the manufacture of highly flexible braids, bundled braids, for stranding pairs of wires, triples, quadruple designs …The machine concept differs from the single-twist system in that…[Leggi tutto]
-
drefsvfgbjhtzq è diventato un membro registrato 2 anni, 4 mesi fa
-
drefsvfgbjhtzp ha inviato un aggiornamento 2 anni, 4 mesi fa
“The prime purpose for fire doors is to save lives and stop the progress of fire in support of both escaping occupants and fire-fighting activities. They are an important part of a building’s passive fire protection system and an essential requirement for the vast majority of premises including residential, public buildings, offices and factories…[Leggi tutto]
- Carica di più