Rust » prevent corrosion

Rust Converter.wmv

admin — Wed, 14 Jul 2010 16:39:08 +0000

Rust Converter stops rust by neutralizing loose ferrous ions. Creates a sealed and paintable surface.

Duration : 0:1:50

[youtube WswqhZOrs9Y]

how to prevent cooling tower corrosion besides chemical treatment?

admin — Tue, 13 Jul 2010 23:00:31 +0000

any help would be much appreciated, thanks

Most cooling towers are internally constructed of wood. The key is to treat water in such a way that it does not react with the lignin in the wood. The other problem is algae and fungus growing on the wood surface which reduces the heat transfer area. I am not sure what corrosion are you referring to. Below is a basic maintenance program.

http://www.wapa.gov/es/pubs/techbrf/cooling.htm

Does a volatile corrosion inhibitor (VCI) prevent metal from being oxidized/reduced?

admin — Sat, 10 Jul 2010 15:24:19 +0000

Does a volatile corrosion inhibitor (VCI) prevent metal from being oxidized and/or reduced?

Any help would be appreciated, thanks.
FYI, I see a lot of people are posting their homework problems on Y!A. This isn’t a homework problem…I am trying to shield a metal from a reducing agent, and would like to know if a VCI would be able to do this. Thanks!

Yes sure vci will help you. Do let know your exact requirement and problem faced will ask my counterpart in US to get in touch with you.

Vihar Engineering Machinery demo

admin — Sat, 10 Jul 2010 00:25:05 +0000

Rotary Bottle Washing Machine
Operates on the rotary principles. Upper platform with bottle moves. Stationery washing nozzle manual loading and uploading. Pre-set washing sequences with recirculation arrangements. Two bottle holders in one line for easy loading and unloading. Bottle holders designed to accommodate containers with varying neck diameters. External washing facility. Supplied with two SS tanks (75 lts capacity each) and two SS Monoblock centrifugal pumps, pressure gauges and control panel. SS body to prevent corrosion. One insulated tank with Electric heaters or steam coils.

Request A Quote

Automatic Liquid Filling Machine( 4 Head, 6 Head, and 8 Head Models )
We provide a diverse range of automatic liquid filling machine, used extensively for filling applications in various industries. Made of superior quality material and components, our manufactured machines are renowned to function with precision in their specified application and have earned us huge accolades from our clients across the globe. Available with us in different models & at an affordable price. The specification & features are given below:

Features

No container – No fill arrangement.
Diving type filling nozzles provided. Hence avoid spillage & foam formation.
All contact parts are made in S.S. 304.
Filling range 3ml to 1000ml in one stroke.
Volume adjusting arrangement easy to use.
Container is stopped for adequate time ensuring proper filling of liquid.
Machine requires no foundation.
Silent operation with minimal power consumption.

Duration : 0:9:23

[youtube 9uATmhyMboI]

What is the name of the grease i put on electrical terminals to make better contact, and prevent corrosion?

admin — Wed, 07 Jul 2010 19:29:16 +0000

specifically batterys

Dielectric Grease

Benchmade: Mini Griptillian D2

admin — Mon, 05 Jul 2010 21:10:13 +0000

Benchmade knives combine distinctive artisan quality of a custom blade with laser precision to create spacing tolerances as low as .0005″, less than 1/16th the thickness of a human hair. The patented AXIS™ mechanism in the Mini-Griptillian locks the blade in place with incomparable smoothness and unsurpassed stability. Omega-style springs on both sides of the handle secure the locking bar to prevent accidental closing. The D2 Tool steel blade is hardened to 57-60 Rockwell holds a razor-like edge and is treated with a BK1® coating to prevent rust and corrosion. And for a solid grip in wet or dry conditions alike, the palm-contoured handle has a swelled base and molded texture for slip resistance. An ambidextrous thumb stud facilitates fast, one-handed opening. It also has a reversible steel carry clip.

Blade length: 2.91″.
Closed length: 3.87″.
Weight: 2.91 ounces.

Duration : 0:4:49

[youtube xKMIi8zcbe4]

Why does Painting a metal surface prevent corrosion?

admin — Mon, 05 Jul 2010 02:18:23 +0000

Corrosion occurs when a surface is exposed to oxygen, along with other elements. Painting a surface protects the surface and slows down the corrosive process, but it does not stop it. This is why oil tankers are painted on the outside AND the inside.

which of the following is one way to prevent the corrosion of iron?

admin — Fri, 02 Jul 2010 03:22:14 +0000

u forgot to put the foloowings to choose from…
but still here are some ideas for u…
TO PREVENT RUST, KEEP METAL SURFACE DRY – OR ADD A COATING
Rust is corrosion that affects ferrous metals such as iron and steel. In many cases, water vapor must be in the air before rust can occur. With iron, for example, 40 percent humidity must be present before rust will start to occur. The best way to prevent corrosion is to keep metal surfaces dry. Isolating the metal by coating it with paint, lacquer or wax is another good way to prevent corrosion.

Before coating a metal surface, remove all traces of rust. Then apply a primer and finish with paint. It’s best if the paint and primer are the same brand; they usually are formulated to work together. Metals such as brass, copper or aluminum are best protected with either wax or by spraying them with lacquer or clear varnish.

Rust also can attack metal in inaccessible areas. Corrosion occurs inside a home hot-water heater, for example, because the ions circulating in the water make it easy for dissolved oxygen to pull the electrons from the interior surface of the metal tank.

Rust that occurs in localized areas is called localized corrosion. There are three types: galvanic, crevice and pitting.

- Galvanic corrosion: It occurs whenever two dissimilar metals contact each other. This creates a flow of electrons between the metals that eventually causes them to disintegrate. One way to prevent this corrosion is to replace one metal piece with another that is compatible with the mating piece.

For example, many aluminum storm doors have steel rivets holding the hinges or closing piston in place. Often, corrosion starts around these fasteners, then works to the adjacent aluminum panels. Drilling the corroded fasteners out and replacing them with aluminum pop-rivets will stop the galvanic corrosion before it spreads.

- Crevice corrosion: It occurs around the joints and seams of metal fixtures where dirt accumulates. By itself the dirt is not particularly harmful, but it allows moisture to collect; this causes corrosion. Joint and seam corrosion is a common occurrence on gutters and downspouts. Clean them often to keep dirt and leaves, which retain moisture, from building up. If rust is present, remove it with a flexible sanding wheel chucked in an electric drill, then prime and paint the bare metal.

- Pitting corrosion: It occurs outdoors when the wind bombards metal surfaces with minute particles of dirt, salt or sand and creates microscopic craters that retain moisture. At first, the corrosion is limited, then quickly escalates into a formidable problem. Outdoor electrical conduits, television antenna masts, metal windows and doors, and children’s play equipment are a few of the items that receive constant assault from air-borne particles and are subject to pit corrosion. This type of corrosion is severe near the seashore and is most noticeable on the side of the house that faces the prevailing winds. Check exposed metal surfaces often; sand and paint them if they show signs of pitting.

Snips can cut this metal into tiny pieces, used for solders and coated onto steel cans to prevent corrosion?

admin — Sun, 27 Jun 2010 14:59:13 +0000

What is that element

Tin.

This is what plates the inside of a "tin can," which is really mostly steel with a thin plating of tin.

The most common type of electronics solder is 60/40 or 63/37 tin/lead solder. I think all or nearly all lead-free solders use tin as well. It has a low melting point and is nontoxic.

You have probably heard of "tin snips;" they look rather like large scissors. I would guess that the name originates from their use in cutting thin sheets of tinplate steel, as pure tin is not used very often.

FSX Lycoming 400hp Top Dressing (Crop Duster) Fun

admin — Sun, 27 Jun 2010 03:05:06 +0000

The Fletcher is a conventional low-wing monoplane with tricycle undercarriage, side-by-side seating in front of the wing and hopper and pronounced dihedral on the outer wing panels. A door aft of the wing’s trailing edge on the port side allows access to a cargo compartment. The Fletcher’s airframe is constructed entirely of aluminium, heavily treated to prevent corrosion.

After the 257th aircraft the engine was changed to a 400 hp (300 kW) Lycoming horizontally opposed eight-cylinder engine (over a hundred earlier aircraft were re built and re engined by the factory). Some Fletchers have also flown with V-8 truck engines. In 1967 a PT6 turboprop version was built by the factory, a 530 hp (400 kW) Garrett TPE 331-powered version followed in 1968 and a 665 hp (496 kW) Garret powered version in 1971. Several others were converted aftermarket with these or Walter turbines, (including the first prototype, which still flies, with a 500 hp (370 kW) PT6).

Performance
(with 400 hp (300 kW) Lycoming)

Maximum speed: 233 km/h
Cruising speed: 209 km/h
Range: 700 km.
Service ceiling: 16,000 ft (4,900 m).
Rate of climb: 805 ft/min
(with 260 hp (190 kW) Continental)

Maximum speed: 143 mph (230 km/h)
Cruising speed: (75% power) 127 mph (204 km/h)
Range: 371 miles (597 km)
Service Ceiling: 17,000 ft (5182 m)
Rate of Climb: 900 ft/min (274 m/min)

Duration : 0:9:39

[youtube elfKSuosoBw]