COF (Coefficient of Friction) is really a worth that represents the connection involving the force of friction and also the regular force amongst two objects. Though this could sound confusing, it can be a crucial worth for providers that manufacture lawn and garden bags and plastic bags for mulch. COF is significant for each mailer and all lawn and garden bags which might be palletized for transport and show.
All through day-to-day life, friction happens. This unseen force either enables or hinders the movement of two surfaces that come into contact. By controlling COF, businesses that manufacture and sell plastic bags for mulch, mailers, lawn, and garden purposes can optimize functionality and avoid difficulties precise to storage and transportation.
When excessive friction around the sealant’s side in the film happens to employ horizontal type fill and seal systems challenges with jamming or dragging through passing more than metal plates are typical. These damages goods and causes slower production, which impacts the company’s bottom line.
The COF Testing Machine
A COF testing machine also named a
coefficient-of-friction (COF) tester, tends to make a measurement of a sheet-like substrate including paper, corrugated, plastic film, or paperboard
which determines the angle of inclination at which one substrate affixed to a sled will start to slide/slip against the surface of an additional substrate of
an equivalent material.
Measuring friction might be an essential aspect for a lot of industries, in particular for plastics and packaging. Friction could be characterized by static friction and kinetic friction. Static friction of plastic is present when two objects are in speak to but not sliding across every other. Kinetic friction is often resistance friction that's present through sliding motion involving two objects. The coefficient of friction is dependent around the surface situations of each supply that are in contact.
Some COF testing machines like ASTM D1894 and ISO 8295 cover the testing strategies to decide the coefficient of plastic components. Testing includes pulling a weight having a plastic specimen in between the weight and also the ground. The force essential to perform so might be measured along with a coefficient of friction is then determined.
ASTM D1894
Making use of this test, the static
coefficient of friction, and also the kinetic coefficient of friction in the
test material is often measured. ASTM D1894 is typically utilized for plastic
sheeting but you'll be able to adapt it for almost any item or material
(instance: Friction of sneakers on anti-slip paint). The test utilizes a
regular universal COF testing machine, low force load cell, along with a COF
apparatus described inside the specification (ADMET element quantity FS-CFT).
The initial force to move the sled is utilized to calculate the static COF,
plus the typical force when the sled is moving is employed to calculate the
kinetic COF
No comments:
Post a Comment