Canada Metal North America: 2018

Monday, February 26, 2018

Why interlocking lead bricks are one of the best materials for radiation protection

Lead is one of the best materials used in radiation protection. Interlocking lead bricks offer outstanding features and benefits because of their versatility. They are available in a wide range of standard and custom sizes, including corner units.

Lead is the leading material for radiation attenuation because of the high density and high atomic number of lead. Radiation shielding effectiveness is based on the density of the shielding material, its resistance to damage, its thermal properties, its cost and availability and, most importantly, its radiation attenuation effectiveness. Lead is a material that meets all these criteria. Lead is effective at blocking gamma rays, x-rays, and other types of nuclear radiation. But the specific use of lead in the form of interlocking lead bricks is especially invaluable because of their flexibility of use in the field of radiation shielding/protection. Here’s why:

A major advantage of using interlocking lead bricks for radiation protection is the dual benefit of the intrinsic properties of lead as a radiation barrier and the flexibility of use for this form of lead. Other lead shielding materials commonly in use are: lead clad building materials, lead laminated panels, lead sheet and foil, and even lead glass, to name some of the more popular forms.

Read original content...

Contact Details:

Canada Metal North America

8271 Lafrenaie, Montreal,

Quebec , Canada

H1P 2B1

Phone No: 1 800 363-7110

Email: contact@canadametal.com

Thursday, February 1, 2018

How Babbitting Protects From The Galling Of Metallic Surfaces

Those in industry who work with metals, metal components, and metal machinery, and are familiar with the frustration of machine and component failure due to the galling of metallic surfaces, will appreciate a solution to this problem through a practice known as “babbitting.”

Babbitting refers to the coating of a metal surface, casting, or bearing with a Babbitt metal; which is essentially a different material from that which is being coated. A Babbitt or Babbitt metal is one of any number of metal alloys used to protect from the galling of metallic surfaces.

Galling refers to a type of severe abrasive wear on metallic surfaces; an abrasion that can occur between at the interface of two contacting rubbing or sliding metal materials. It is, in effect, a microscopic transfer of material between metallic surfaces. Galling is also sometimes referred to as cold welding. It can take place between surfaces like bearings and casings that are under sufficient load and in motion with friction to cause the transfer of metallic material, thereby leading to metal component failure.

Some of the principal factors that can affect galling include the properties of the metallic materials (such as surface hardness and microstructure), the applied load, the contact area and degree and intensity of movement, the duration of contact, and even the environment and design of the materials.

Read full details here...