RUBBER LINING
Rubber lining is a rubber sheet or membranes used for protection from corrosion in aggressive chemical environments. There are several rubber Lining applications some of which include resistance to acid, chemicals
and alkalis, abrasion resistance, infect protection.
Uses of Rubber Linings
Rubber linings are used in a variety of applications like the chemical, mining, fertilizer, electrochemical, steel, transportation on and environment sectors. Rubber linings are used for protection against corrosion and metal and chemical impurities. Using the most advanced technology, the
linings are produced in different thicknesses to be used in a variety of industrial situations. Available in a variety of rubber types, the various
uses of linings are as follows:
Rubber linings are used to extend equipment life Linings also provide solutions for the:
- Toughest abrasion and corrosion applications.
- Extreme chemical environments.
- Severe wear situations.
They are chemical resistant linings with good flexibility and high impact resistance. Some of them are graphite based rubber linings having excellent chemical resistance at high temperatures and some others are exhaust steam vulcanized rubber linings that are suitable for lining vessels, which can’t be cured with pressurized steam. These various types of hard rubber linings are suitable for storage tanks, reactors, plants which use ion exchange membrane process, pipes at high operating tempera-
Ceramic Lining
The ceramic wear resistant linings comprise ceramic tiles that are made to very specific specifications and maintain a high grade of no less than 92% alumina content. The ceramic tiles are available in various dimensions and thickness.
Ceramic wear lining is designed to be extremely resistant to abrasion even in high material flows and speeds, preventing material build-up. It has proven to be valuable especially in wearing mining and aggregates applications. As a material, ceramic has beneficial anti-corrosion properties that prolong wear life and improve impact resistance. Ceramic lining also reduce noise and vibration.
Ceramic wear lining protect equipment from wear Maximum wear life of your ceramic lining reduces the need for expensive downtime for maintenance work. Utilizing ceramic lining also tends to have a positive impact on working environment since resistant material cut down vibration and noise, and thus reduce risks and improve safety of personnel.
Common applications for ceramic lining are:
- Chute lining
- Conveyor lining
- Cyclone cluster lining
- Hopper lining
- Pipe lining
- Pulley lining
- Spout lining
- Transfer point lining
- To prevent material
- Build-up in wet applications
- Any other application subject to wear
Pully Lagging
Lagging is the term used to describe the application of a coati ng, cover or wearing surface which is sometimes
applied to pulley shells.
Lagging is often applied in order to extend the life of the shell by providing a replaceable wearing surface or to improve the friction between the belt and the pulley. Notably drive pulleys are often rubber lagged for exactly this reason.
This section provides some useful information regarding
the different types of lagging as well as some technical
details and recommendations for lagging of pulleys.
Types of Lagging. There are primarily three categories of lagging which are used on pulleys and these
are described below :-
a) Rubber lagging
Rubber lagging is applied to pulley shells in order to improve the friction between the pulley and the belt. Conveyor drive pulleys are often supplied with diamond
grooved lagging as indicated in the adjacent sketch.
Diamond grooved lagging’ refers to the pattern in the lagging and this pattern, like with vehicle tyres, enhances the
grip or friction even if the belt surface is dirty.
b) Lagging Hardness
The hardness of the rubber lagging to be used on a conveyor is generally dependent on the pulley location. Pulleys
which come into contact with the dirty- or carrying-side
of the belt including snub pulleys and bend pulleys, usually employ lagging with a hardness of 35 to 45 Shore ‘A’.
Drive, take-up and tail pulleys should use lagging with a
Shore ‘A’ hardness of between 55 and 65.
Rubber lagging thickness varies extensively. Commonly
used lagging thicknesses are as follows :-
Drive pulleys, grooved lagging
: (10 to 12 mm).
Other pulleys, plain lagging
: (6 to 10 mm).
With a pulley lagging system, your pulley and conveyor belt
remain in contact at all times. This increases friction and prevents
the belt from slipping – which would otherwise rapidly
ruin your belt, especially at high rotation speeds.
Ceramic Lagging
Ceramic lagging is one of the most commonly used types of lagging applied to conveyor pulleys. It is often used in harsh conditions where abrasive material is conveyed because the ceramic is hardier and more durable than rubber lagging.
Ceramic lagging can be applied to the pulley shell as a rubber backed ceramic sheet or strip. In this case, the rubber backing is bonded to the pulley shell. Alternatively, the ceramic tiles can also be bonded directly to the shell without a rubber sheet or strip.
The most common types of ceramic lagging are dimple and smooth finished ceramic. Both of these types of ceramic lagging offer a significant increase in friction and grip to the belt and can reduce belt slippage.
Sandblasting
The term sandblasting is used within the metallurgical
industry to refer to the process of propelling very small
pieces of material at a high speed in order to clean or etch a surface. Many types of granular material are
available for the process, and each come with their own
set of properties and advantages offered when used for specific types of metals.
There are many reasons why you should use this technique for your next metal project, including:
It removes mill scale, oil, and rust which have a tendency to form on the surface of the steel parts that have been freshly manufactured.
The same medium can be used multiple times for the purpose of sandblasting and is thus a reusable asset. This helps bring the cost of the process down and makes it the economical choice. Many other types of harmful surface contaminants are also removed during the process. This includes dirt and oil spots, which can be in hard to reach places if you aim to remove the particles using only your hands during the metal surface cleaning process. Manually cleaning the metal surface can be a long, arduous process that requires a great deal of human eff ort. However, using sandblasting for this purpose can greatly speed up the entire process, and it also requires much less eff ort on the machine operator. It is a highly efficient method of removing old paint from the surface of the metal before applying a fresh coat of paint to the area. Not to mention the added bonus of removing any hard dirt particles that may be sticking to the metal surface before the paint job begins.
There are many options available for the medium to be used in the process of sandblasting. The options can range from biodegradable substances, such as walnut shells, to specially manufactured steel grit. Therefore, you can make the choice, that is best for you, based on your personal needs and attitude toward the job.
Vulcanized Rubber
Vulcanized rubber has many more applications. Resistance to abrasion makes softer kinds of rubber valuable for the treads of vehicle tires and conveyor belts, and makes hard rubber valuable of abrasive sludge.
Natural rubber is used extensively in many applications and products, either alone or in combination with other materials. In most of its useful forms, it has a large stretch ratio and high resilience, and also is water-proof.
Process
Sand blasting then you apply first quote , wait to 10mins for it to dry as u apply on the natural rubber.
After you applied on rubber up apply second quote. Linatex premium rubber is a proprietary vulcanized natural rubber, produced through a unique process that uses high quality natural latex. It has outstanding strength, resilience and resistance to cutting and tearing with high performance in wet, abrasive conditions.