A general purpose soluble petroleum oil, used in cutting, grinding, certain cold forming operations, and die casting, this product is typically diluted with five to twenty parts of water before use. Variations on the basic formula are available where extra lubricity is needed, such as Renite D-7, which contains aluminum powder (for certain large aluminum die castings) and Renite D-5-F, an emulsified form of Renite D-5-A that contains graphite (for lubricating mandrels in tube bending to make special automotive exhaust systems).
RENITE IF IMPACT FORGING LUBE CONCENTRATE.
Developed as a hammer die lubricant for impact forging, Renite IF is a graphited oil-in-water emulsion. It combines in a single product the lubricity and release characteristics of oil, bolstered by graphite so as to stand up under extremely high temperatures and pressures, with the cooling effect, safety, environmental acceptability and economy of water. It is typically diluted with six parts of water to one of Renite IF. More concentrated mixtures may be used on more difficult jobs, though there should be no less than two parts of water to one of Renite IF to keep the release effect from becoming overly vigorous.
RENITE S-26 STANDARD COATING CONCENTRATE. A water-dilutable concentrate for lubrication in hot-forming of metals and a few cold-forming operations as well. Renite S-26 is applied to dies for hot-forming metals at die temperatures (at the moment Renite is sprayed) in the range of 300 to 800 F (150 and 425 C). It uses an inorganic clay-type additive as dispersing and suspending agent, and this additive also provides a little insulation. It is used in forging and extrusion of ferrous metals, including stainless steel, and also titanium and brass.
When this lubricant is sprayed on working surfaces of tools and dies, the water vehicle evaporates, leaving a solid film lubricant coating well suited to high temperature and high pressure applications. Lubricity is quite high (comparable to, if not better than, oil/graphite lubricants) and the metal-working operation is carried out without smoke, fumes and flames. Although used mainly in hot forging and extrusion, it is also used for some difficult die casting jobs (aluminum carburetors) and as a coating for billets in some aluminum and steel cold forging operations.
Supplied as a concentrate, this lubricant is adjusted to suit a variety of different applications by varying the dilution ratio, with a richer mixture for the hotter and heavier jobs. Typical dilution ratios are 10-20 to 1 for die casting, 5-10 to 1 for forging and extrusion, and 2-3 to 1 for the hottest and heaviest jobs.
Renite S-26 has the ability to coat at temperatures often considered above the range for water-based products, and relative freedom from problems with nozzle clogging and build-up on dies. Clogging and build-up generally are the result of dried lubricant residues that are hard and water-resistant. Dried Renite S-26 residue is soft and redisperses readily when wetted with water.
RENITE S-45 HIGH GRAPHITE COATING CONCENTRATE.
This is a new graphite/water lubricant, high in graphite content (28%), with only a small amount of organic (biodegradable) wetting and suspending agents. It is well-suited as a lubricant/coating/release agent for tools and dies in hot forming of metals, and for molds in hot pressing of glass. Chemically uncomplicated, it has no preservatives, wetting agents, corrosion inhibitors, metal salts, and has no caustic or acidic additives. The combination of high graphite content and a minimum of additives gives it excellent lubricity.
Applications thus far have included aluminum die casting, and forging of steel — steel hand tools and small pistons in particular. As it is new, we do not have a full picture of its capabilities, as compared to Renite S-26. Consult with us as to whether to try it or Renite S-26 in your applications.
Temperature range is roughly 300 - 600°F or 150 - 315°C when used as a spray-applied coating. At lower temperatures, it has better clinging ability than Renite S-26 and we believe it has potential as a billet dip coating on this account, though being quite new, it has not been tested on billets.
As with Renite S-26, dried material softens and redisperses rapidly when wetted, minimizing clogging and clean-up problems generally associated with graphite/water lubricants, which dry to form hard, insoluable residue.
RENITE S-28 ALUMINUM COATING CONCENTRATE.
Intended especially for aluminum, this is a dispersion of graphite in water, recommended as lubricant and release agent for forging and extrusion operations where die and tool temperatures, at the time of spraying, are between 300 and 600°F (150 and 315°C). (External heating of dies may be provided when needed.)
Special features of Renite S-28 are the extra metal movement it gives to aluminum and relative freedom from build-up problems, even on narrow draft dies. Lubricant residues are soft and flaky – tend to be knocked off and blown away when the forging or extrusion is removed and the coating for the next piece applied. Lubricity is quite high (comparable to, if not better than, oil/graphite lubricants), and the metal-working operation is carried out without smoke, fumes and flames.
Supplied as a concentrate, this product is diluted with water before use. Typical dilution ratios are on the order of 5-20 parts water to one of concentrate, with richer mixtures for hotter and heavier jobs.
RENITE PG-14 and PG-13 PHOSPHATE AND PHOSGRAF COATING CONCENTRATES.
These are our synthetic and semi-synthetic lubricants, with low or non-staining characteristics in metal-working operations. They are blends of polymeric phosphates in a water vehicle. The former contains no graphite and the latter only a small amount.
These products are used in high temperature applications, such as die lubrication in forging and extrusion. They are of particular advantage in situations where conventional graphited lubricants cause graphite staining problems. When sprayed on hot tools and dies, the water is driven off, leaving behind a soid film lubricant coating. At high temperatures and pressures, the phosphates and the graphite flow much like an oil, reducing friction, providing release, and easing metal movement. Where pressures are especially high, Renite PG-13 is recommended – graphite staining problems are minimized because the phosphates aid in removing graphite during the cleaning process. In many situations, the phosphates alone are sufficient, and Renite PG-14 may be used.
Renite PG-14 has been used as a die lubricant in forging of large steel bits for drilling oil wells. Renite PG-13 finds use in certain ferrous metal forging operations, and currently shows promise in testing as a billet coating.
NEW RENITE DEVELOPMENTS.
Work on new and improved lubricants for the metal industry is continuously in progress, and we often have experimental products awaiting production tests. We are always willing to work with customers to develop lubricants to suit particular needs. With over sixty years of experience, we stand ready to be of service.