Download PDF A Guide To Plunger Lubricants

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Single line lubricating system
Contents:
  1. Building a High-Pressure Oil Gun from a Lever Action Grease Gun
  2. Basic Info
  3. Replace the Plunger on a Topeak Road Morph G and Pump - howchoo

Building a High-Pressure Oil Gun from a Lever Action Grease Gun

The spring also resists some of the initial inertia of the moving lube piston, slightly delaying the output of the lubricant until the plunger tip has passed the pour hole for the molten metal. Thus, lubricant does not flow out of the pour hole, as in typical prior art spray lubrication systems. In a preferred embodiment, the second pressure means used for increasing the pressure within the lubricant source is the standard industrial shop compressed air line, so that no additional pressure source such as a pump is required as in prior art devices.

Lubricant is drawn into the lubrication chamber while the lube piston is being retracted, and is forced out of the lubrication chamber by the lube piston while the plunger is being axially extended into the shot sleeve without the need for hydraulic or electronic timing devices as required in prior art lubrication systems. It is a feature and advantage of the present invention to provide a die cast lubrication system that is inexpensive and has fewer components than prior art systems.

It is another feature and advantage of the present invention to use the force transmitted by a standard die cast plunger movement means to transport lubricant to the outer surface of the plunger. It is yet another feature and advantage of the present invention to provide a die cast lubrication system which more evenly distributes the lubricant on the outer surfaces of the plunger components and on the internal surface of the shot sleeve.


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Let us visit your plant and recommend release agents, lubricants, plunger lubricants and permanent mold lubricants that suit your needs. Products that represent the latest in technology and ongoing research that enhance competitiveness and increase productivity. We are pleased to provide samples in quantities large enough to allow you to "try before you buy.

On-site process surveys, Casting defect investigations, Product testing, Tooling start-ups and Statistical process controls and much more. Also, lab facilities are available to provide testing upon request.

How & Where To Use Grease, Lubricant & Threadlock On Your Mountain Bike – The Complete Guide

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  • A lubrication system for the plunger of a die cast machine is disclosed that does not require a timing mechanism or an additional pressure source for the lubricant. The forward stroke of a lube piston is used to force lubricant out of a lubrication chamber in the plunger through a passageway to the outer surface of the plunger by decreasing the volume of the lubrication chamber.

    Basic Info

    A spring within the plunger's lubrication chamber is used to retract the piston and thereby increase the volume of the lubrication chamber. The relatively low pressure during this retraction stroke allows lubricant to flow from a lubricant tank into the lubrication chamber for distribution during the next forward stroke of the plunger.


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    • Also, when the lubricant is sprayed into the shot sleeve and metal is poured into the sleeve, the lubricant has a tendency to burn, creating undesirable gases Other prior lubrication systems use complicated hydraulics or electronic timing mechanisms by which a lubricant is provided to the plunger components in timed relation to the position of the plunger. Lubricant is drawn into the lubrication chamber while the lube piston is being retracted, and is forced out of the lubrication chamber by the lube piston while the plunger is being axially extended into the shot sleeve without the need for hydraulic or electronic timing devices as required in prior art lubrication systems It is a feature and advantage of the present invention to provide a die cast lubrication system that is inexpensive and has fewer components than prior art systems.

      Product Samples We are pleased to provide samples in quantities large enough to allow you to "try before you buy. This product is easily applied to the plunger tip with a swab, brush, or lube dispenser. The composition is not conducive to spraying unless pre-heated.

      Replace the Plunger on a Topeak Road Morph G and Pump - howchoo

      The products are generally non-corrosive, but specific applications may suggest adding more or different corrosion inhibitors. These products are compatible with many other plunger lubes and additives. However, any mixtures should be checked before being put into factory use, since some precipitation of graphite and other additives may result. A proprietary blend of high viscosity petroleum oils, graphite and other additives designed for use as a plunger lubricant under conditions where high viscosity is desired or required.

      All reasonable care has been taken to ensure that the information contained in this publication is accurate as the date of printing, however, such information might change due to changes in the formulation blend occurring subsequent to the date of printing.