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Posts Tagged ‘Concrete’

Conveyor Systems and How Useful They Are

Sunday, April 11th, 2010

The conveyor systems are a type of mechanical handling equipment that transports materials from one location to another. It is mostly used in the transportation of heavy or outsized equipment. They are very popular with manufacturers for its quick and efficient transportation of a wide variety of materials that are found in the packaging industries.

There are many factors that need to be understood when choosing the right conveyor system. An obvious factor would be to know how it will be used.

Some of the specific areas that need to be considered are transportation, sorting and accumulation, size of the material, and where the loading and delivering points will be. Because the simple truth is that this will be the lifeline of a company that needs to work with maximum efficiency.

In order to keep things going smoothly the company that operates such a system needs to follow regular inspections, closely watching the motors and gears, keeping a ready stock of spare parts and then finally having trained personnel to keep watch.

In order to increase the service life you need to choose the right system, and doing regular and proper maintenance because a system that is designed properly and well maintained can last a long time. There are basically 4 things that one needs to look out for in order to keep them from breaking down too often.

1) Bad take-up adjustment; this has to do with the chain take- up device which ensures that the chain is pulled tight as it leaves the unit. As wear occurs, chains eventually become loose which will affect the operation.

2) Lack of Lubrication; this is an obvious one, if the chain bearings are not lubricated then the load on the chain can double.

3) Contamination; powder, paint, acid or any type of alkaline fluids will contribute in the deterioration of the parts.

4) Product handling; Even in conveyor systems that are designed to handle many parts, it is always good to check and see if a new product is fit for use on the system.

Why to Acid Etch a Concrete Floor

Friday, February 26th, 2010

Garage remodeling has become a big business and more people are adding floor coatings themselves to save a few dollars. The most important first step is to clean and acid etch your concrete. Etching your concrete floor will profile the surface adding “tooth” or more surface area for epoxy paint to stick to. The etching process will help remove impurities that are bond breakers as well.

There are two types of acid etching products, liquid and gels. Liquids are mixed with 2 or more parts water then poured on the floor. Using a stiff bristle broom the solution is spread over the surface then cleaned off. Gels are rolled on the floor with a 3/8″ nap roller and left to sit for 15 minutes. Then they are cleaned with a squeegee and cleaned with a Wet Vac or dust pan. Any remaining residue is cleaned with a squeegee and water.

Liquid acid etching has been recommended by floor coating manufacturers for years but is an ieffective way to etch concrete. The problem is that acid is a dangerous product and most manufacturers sell a diluted product for safety reasons. Then they recommend diluting with water. When you apply a diluted acid on the surface it provides diluted results. Additionally since virtually every concrete floor has high and low spots, the liquid solution naturally flows to the low spots. The high spots get little if any etching. Unfortunately you cannot get away with an almost etched surface. You will find that epoxy floor paints will delaminate and fail over areas that are not properly etched.

The other option using a gelled acid is much more effective and safer to use. The process is to shake the container then pour the gel into a paint tray. Using a 3/8″-1/2″ nap roller the gel is rolled on just like painting the floor. The gels are very effective because they stay where they are applied and are not diluted. This means the high spots get the exact same coverage as the low spots. You can also use a paint brush to apply to tight spots. The gels do a much more effective job than a liquid as a cleaner pulling impurities like oil, rust and mildew out of the floor.