You’ll need a professional to locate the disconnected duct and seal it so that no air escapes.

Sometimes, other things may cause blockage by covering the vent on the wall (for example, an animal breaks the pipe and builds a nest or dies, your child's stuffed toy, someone hides something in the floor pipe, etc.). Blocking ventilation o…[Leia mais]

How to Identify the quality of microfiber leather

1. Check the surface grains. The texture of high quality microfiber is more clear and the surface layer feels really like genuine leather. However, the poor quality microfiber leather texture is rough and with strong sense of plastics.

2. Handfeeling. High quality…[Leia mais]

Once the respective process is terminated they are to be removed completely from the treated material; however, traces could still be present and interfere negatively with subsequent processing steps.

Sizing compounds and lubricants are applied to yarns before fabric formation to protect the integrity of the yarns. While…[Leia mais]

 At present, DC brushless blowers mostly use brushless DC motors, which greatly simplify the structure of brushless DC motors by eliminating the collector ring and brushes for excitation. It not only improves the technical performance of the motor, but also greatly improves the mechanical reliability and life of the motor. Not only that, it…[Leia mais]

Mini excavators are one of the quickest growing equipment types, with the machine’s popularity seemingly ever-increasing. According to data from Off-Highway Research, global sales for the mini excavator were at their highest point ever last year, at over 300,000 units.

The major markets for mini excavators have traditionally b…[Leia mais]

Oil hydraulics has become firmly established as the drive system for the vast majority of injection molding machines and until recently was almost unchallenged as the power source. Put at its simplest, the injection molding machine contains a reservoir of hydraulic oil which is pumped by an electrically-driven pump at high pressure,…[Leia mais]

Adding carbon black (CB) particles to elastomeric polymers is essential to the successful industrial use of rubber in many applications, and the mechanical reinforcing effect of CB in rubber has been studied for nearly 100 years. Despite these many decades of investigations, the origin of stiffness enhancement of elastomers from…[Leia mais]

Emulsifiers

Brent Murray, professor of food colloids at the University of Leeds, believes understanding ice cream chemistry begins with realising that it’s an emulsion and a foam mixed together. ‘Your basic ice cream mix is just milk, cream, sugar and flavourings, which gets homogenised to form an emulsion of fat droplets in wat…[Leia mais]

Earlier this year I published a three-part article series titled “What to do with all this plastic?” (Part One, Part Two, and Part Three), which looked at the global problem with plastics accumulating in different areas around the world and innovative concepts communities have adopted to help deal with the abundance of plastic products and…[Leia mais]

A large part of enjoying wine lies in savoring its aroma. The wine glass has to gather the wine’s aroma so you can savor it when you drink.

If you use a regular mug and fill it to the brim, all the characteristic vapors of the wine will be gone by the time you start to sip.

But, there’s more to it than just enj…[Leia mais]

Basic Forms of PVC(including PVC rod)

Polyvinyl Chloride is widely available in two broad categories: Flexible and Rigid. But, there are more types like CPVC, PVC-O and PVC-M.

Plasticized or Flexible PVC (Density: 1.1-1.35 g/cm3): Flexible PVC is formed by the addition of compatible plasticizers to PVC which lower the…[Leia mais]

When Brake Calipers Go Bad

In general, brake pads and rotors wear out and need replacement far more often than calipers. A leading cause for damaged calipers, however, stems from driving a vehicle on worn-out pads or warped rotors. Both prevent the system from dissipating the heat of friction, as they’re designed to do, which can d…[Leia mais]

When the wound is closed with dressing, such as transparent film dressing, they are continuously exposed to proteinases, chemotactic, complement & growth factors, which is lost in the wound exposed. So during late 20th century, production of occlusive dressing began to protect and provide moist environment to wound. These dressings…[Leia mais]

What do galvanized pipes look like?

When first installed, galvanized pipes looks similar to a nickel in color. But as it ages, galvanized pipe may appear much duller, lighter, or darker, depending on its environment. We’ve also seen homes where the water pipes have been painted, so it can be difficult to tell at first g…[Leia mais]