The material presented in this video are some highlights from NADCA’s online webinar - Mechanical Maintenance & Evaluation of Die Cast Machines: Die Casting Machine Primary Mechanical Structures.
The first in the Mechanical Maintenance & Evaluation of Die Cast Machines series covers topics related to the major mechanical support structures of die casting machines; the machine base, rails, platen supports, wear pads, die carriers, tie bars and bushings.
Transcription from the highlight, “... defining what we're looking at, the tie bars, the platens, and the base of the machine, and what supports it underneath on the floor of your facility.
Okay, so what about this foundation business? Let's start from the bottom and work up. This foundation is extremely important, just like it is for a house, or any other very, very large/heavy object. Typically, for example, an 800 ton machine weighs about 100,000 pounds, or 50 tons. That's pretty heavy, so we need to do something. We can't just plop this machine down on any surface, and expect it to perform the way it was designed to be performing. Indeed, machines themselves are not very rigid, or able to support their own weight. Let's say if you put them on an uneven surface, they very easily can twist, distort, bend, bow, whatever. They're fairly elastic constructs, I'll call them. What we have to do is provide some kind of foundation that gives us a good solid, relatively rigid, and stable support.
Furthermore, we just can't deal with the static weight of the machine. We have to realize that the machines move, and in fact they move relatively quickly for their mass. Platens come to an abrupt halt when they're opened or when they're closed. There's a lot of motion and impact when the shot is made, and so the point is that the foundation underneath the machine has to be able to deal with these dynamic loads as well, which can maybe increase the static weight of the machine load on the foundation by 10, 20% sometimes, depending on the machine, and how big it is, and how fast it moves.
The other thing is the machine has motors, pumps, all kinds of related equipment on it, and so vibrations occur, which are translated down into the foundation, and hopefully we have a way of dealing with those vibration problems as well. Then finally, because of these dynamic movements, the machine's got to somehow be affixed to the foundation so it can't slide around or move around, and so we'll look at those things too. Then finally, let's face it, things come out of the machine, lubricants that lubricate the moving parts of the machine, greases, oils, things of that nature. Furthermore, the effluent from spraying the die lubricant, water-based fluids, et cetera, will drip down under the machine, and if you don't make accommodation for those fluids to drain out from under there, you get a big mess underneath the machine.”
For information on purchasing a downloadable copy of this webinar in its entirety, please visit: diecasting.org/store/detail.aspx?id=WEB239. Purchasing a course through the online education system grants you one year of access to the recording, presentation, support material, and test, when applicable.
How do I manage die casting lubricant overspray?
Waste generated during application may be hazardous waste as defined by RCRA (40 CFR Part 261). Place overspray in closed containers. Do not dump into any sewers, on the ground, or into any body of water. Dispose of in approved landfill in accordance with federal, state, and local regulations. Do not pollute. Follow label warnings on original containers. Do not pressurize, cut, weld, solder, drill, grind, or expose containers to heat, flame, sparks, static electricity, or other sources of ignition as this may cause them to explode. Never return overspray to original containers for re-use.
Die Casting Process in Google News:
New Research on Magnesium Alloy Die Casting Machines Market Growth Analysis, Opportunities Forecasts Report till 2025
Hill and Griffith Customer Service
We're known for our hands on approach. Let us visit your plant, offer die casting technical support 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." Die Casting and Squeeze Lubricants- Diluco®, Permanent Mold Coatings- Concote™, Plunger Lube™- Graphite and non-graphite oils and pastes with excellent anti-wear properties, Casting Operations Products: Start-up lubes, Ladle coatings, Anti-soldering pastes, Water glycol, Trim press lubricants, Surface protection for casting storage, Corrosion protection for die storage, Cleaners for machines and dies, Corrosion protection for machines, Heat treatment quenchants, and Heat-transfer fluids. Also, Industrial Lubricants Griflube®, Hydraulic fluids with fire-resistant and anti-wear properties, Bio-Syn natural ester-based hydraulic fluid, Way oil knuckle lubes and Metalworking Fluids- Grifcut™
Technical Services & Support
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.