Archive for August, 2011

Metal Working Lubricants – A History of Industrial Lubrication

Saturday, August 6th, 2011

Lubricants, fluids and coolants regularly utilized in the metal working industry are highly specialised and designed to perform specific tasks. Along with metal forming, metal working features a fairly broad range of tasks – including polishing, cutting, embossing and grinding.

Metal working lubricants can be used for several reasons. While one of the primary functions would be to increase lubrication, they are able to also reduce thermal deformation, improve the overall finish of a metal surface and help to effectively remove loose metal chips from the cutting area.

Lubricants may be used to carry abrasive powders, when used for polishing or lapping of metals. They are effective in serving as a cooling agent when used in grinding applications and in addition they prevent certain materials from sticking to surfaces. Lubricants can help counteract corrosion and rust.

And maybe most of all, the right utilization of metal working lubricants will assist you to reduce deterioration, prolong the life span of tools along with other moving parts, lessen the time allocated to maintenance – and of course ultimately ensure a company’s profitability in the long run.

Different lubricants possess different properties and features. Features that might be important when selecting a lubricant include potential to deal with heat, oxidation inhibiting ability and biodegradable ability. Flash point can also be an essential consideration – the flash point may be the lowest temperature where liquid can emit enough vapours to result in an ignition.

Metal working lubricants are available in three types: greases, fluids and solid lubricants. Each has different properties and may supply most effectively in different industrial applications. Which lubricant to use will depend on several factors – the options associated with a die used, the temperature and the overall processing conditions.

Solid lubricants are chemical substances for example boron nitride and frequently have such qualities to be effective in keeping out moisture, reduce friction and usually reduce wear and tear.

Some industries need specialised lubricants – the transportation, aerospace and automotive industries are the biggest users. The steel forging industry commonly uses graphite based lubricants which is often graphite immersed in oil or water. This type of lubricant also has the advantage of having no fumes and is able to keep the steel forge and area clean.

Lubricants utilized in metalwork vary widely in their chemical composition in addition to their uses. Lubricants may contain such varied ingredients as mineral or petroleum oils, natural oils, waxes or paraffin.

Some lubricants have a high percentage of water and tend to be known in the industry as HWCF – high water content fluids. Synthetic fluids generally offer an effective resistance to heat in addition to excellent cooling abilities; they do not have a petroleum or mineral oil base.

They might not be the most glamorous area of the metal working industry – but certainly, the indispensable lubricant is unquestionably probably the most important.

Industrial Adhesives-A History of Industrial Adhesives

Saturday, August 6th, 2011

An industrial adhesive is understood to be something that is used in a fastening or bonding application in a manufacturing industry. There are many different types of adhesive that are used regularly – epoxies, hot melt, sealants, acrylics, thermostat and silicon adhesives. Then one we’re all acquainted with – cement and mortar will also be regarded as industrial adhesives.

Different industrial adhesive types have different properties or features and can supply effectively for various purposes. Some adhesives have particularly good bonding qualities – for instance, hot melt adhesives which may be repeatedly softened and hardened by alternate heating and cooling.

Also particularly versatile are so-called pressure-sensitive adhesives, which – because the name suggests – only need very slight pressure to adhere to most surfaces. Pressure sensitive adhesives are available in water, solvent and latex based forms.

UV curing adhesives will give a strong and permanent bond without the use of heat, as they use ultra-violet light, or other causes of radiation. One thing to consider is the bonding time – some UV curing adhesives bond instantly, while some require a longer time.

Some industrial adhesives are based on their chemical make-up – acrylic, silicone, rubber and polyurethanes, for instance. Acrylic adhesives have a faster setting time than most other resins, and also offer excellent resistance to the sun and rain. Polyurethanes offer durability, flexibility and high resistance to impact.

Rubber sealants and adhesives are widely available and have different uses. Rubber adhesives are often based on compounds for example nitrile or butyl and they also offer a strong yet highly flexible bond between surfaces. Epoxy adhesives provide capability to resist chemical and environmental damage, as well as their general versatility in several areas.

Anaerobic adhesives may be used effectively in an environment with no oxygen and therefore are widely used in several industries – military, aerospace and marine. Some anaerobic adhesives are created to be used in a high voltage setting, or with electronic devices or semiconductors.

Silicon based adhesives provide flexibility and possess a high resistance to heat Up to 600 degrees Fahrenheit. Polyurethane sealants and adhesives can be found in one or two part adhesive systems and therefore are known for their all-round durability as well as their high levels of impact resistance.

Some industrial adhesives are made to offer an electrical path or link between components. These adhesives assistance to prevent problems for example rf interference and electrostatic discharge. These adhesives are routinely used in the manufacture of circuit boards, transformers and generators.

Today, the introduction of industrial adhesives with new – and more effective – properties is continuing constantly. Engineers and scientists explore ways to enhance a number of different factors for example flexibility, toughness, setting time, temperature and chemical potential to deal with make industrial adhesives competitive with they can be.