Custom Carbon & Graphite Machining

09 Oct

Teflon: Not Just for Non-Stick Cookware

Teflon History and ApplicationsGraphite is a high temperature-resistant material. It isn’t too surprising then to find that graphite and Teflon have been combined in industrial applications that go beyond just non-stick cookware, like gasket material (and many others). Teflon-coated graphite refers to a material that consists of a layer of Teflon (a brand name owned by The Chemours Company, for polytetrafluoroethylene, or PTFE) applied to the surface of graphite. This combination offers unique properties and applications, primarily due to the characteristics of both materials. Teflon was a revolutionary invention (or "lucky accident" in the eyes of some!) from it's conception. Roy...

30 Sep

Synthetic Graphite and Its Various Grades

Here’s a question: What do electric discharge machines, degassing systems, and li-ion batteries all have in common? Yep, synthetic graphite. Ok, so that was easy, but extra points if you added to that list on your own things like nuclear graphite, anode material, and a million other products and machine components that require various grades of synthetic graphite to function properly. Synthetic graphite is classified into different grades based on its characteristics, properties, and intended applications. Synthetic graphite grades used in electric discharge machines will differ from synthetic graphite grades used in degassing systems. These grades are designed to meet...

18 Sep

International Organization for Standardization 9001 Certification

Semco Carbon is proud to be an ISO 9001-2015 certified company. The decision 4 years ago to prepare, apply, and become certified was driven by our belief that we were already operating at a high standard that the certification would indeed confirm. We also knew that working towards and achieving this certification would contribute to the success of our company in many ways, from strengthening supplier relationships to improving the morale at our manufacturing facility in Lorain, OH. It was no small decision to apply for this certification, and it took hard work and collaboration by and across all departments...

07 Sep

Beyond Lithium Ion Batteries--Dangers to Graphite in High Heat Environments

Synthetic graphite is a carbon material that is manufactured through the high-temperature treatment of carbon precursors, often petroleum-based materials or coal tar pitch. It is used as the anode material in lithium ion batteries, as crucibles in foundries, and many other applications in between. Synthetic graphite oxidation refers to the process by which synthetic graphite materials react with oxygen in the presence of heat, such as when graphite is used in the steelmaking process. Oxidation leads to the formation of various oxidation products which can degrade properties of graphite that make it such an attractive material in the first place....

31 Jul

Graphite in Heat Treat Furnaces

Graphite in Heat Treat Furnaces Graphite is commonly used in heat treat furnaces because of its high temperature resistance and chemical inertness. Semco has long worked with companies in the heat treatment industry to provide reliable custom graphite components for their heat treat furnaces. Below we will explain what heat treatment is, why graphite’s properties like chemical inertness and high temperature resistance make it ideal for use in this industry, and why Semco is such a trusted name in the heat treat furnace industry. What is Heat Treatment? Heat treatment covers a wide variety of processes. In each of these...