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A graphite drawing of a stag.
Many thanks to TopBeater for allowing me to use his fantastic photograph.
To see more wonderful photos go to www.flickr.com/people/topbeater/
This image is a Swiss army knife in graphite on blank paper. First I took a photo of the real knife because it took me a few days to have this completed and I did not want to worry about shadows and the change of direction in light everyday. Next I started off with the placement and general shape of the knife before I started adding in the detail in certain sections at a time. Since it takes so long to get a good dark colour I had to use many different pencils in the process. I was unable to use all 12 shades but I want to say that I've got at least 8 of the shades in my drawing. My historical influence for this drawing was Edward Weston, a photographer that lived between 1886 and 1958. He was a photographer that liked to do macro photography. His favorite things to take pictures of were statues, shells and peppers. I used him at my influence because I did close-up drawing with my graphite and I was hoping to capture as much detail in my drawings as he did in his photography. In the knife I payed close attention to the lighting just like how he set up his lighting in a certain way for each photo to get the right look/ the right texture that he wanted. My drawing connects to my theme because for this loop I was planning on doing multiple different inanimate objects and for each one they are different in their own way but I am planning on connecting them all together. Since my theme is similarities and differences, for the knife it is a symbol of a tool to me. The reason the knife is similar to my other drawings in this loop will be that it is unique in its own way and may be overlook at times.
www.zhongtaigraphite.com/products/graphite-block-for-vacu...
Vacuum furnace graphite has good vacuum performance, thermal conductivity, low coefficient of thermal expansion, increased strength with the increase of temperature, good processing technology, and low cost, so it is a kind of high-quality and low-cost material. Graphite block for vacuum furnace is not only used to manufacture heating elements and heat insulation screens of vacuum furnaces, but also used to manufacture stressed structural parts such as supports, material trays, guide rails, bolts, bearings, fan blades, and so on. Its application in vacuum furnaces greatly simplifies the design and manufacture of vacuum furnaces, reduces the consumption of metals such as tungsten, molybdenum, tantalum, and stainless steel, reduces the cost, improves some properties of vacuum furnace and expands the application range of vacuum furnace.
Advantages of Graphite for Vacuum Furnace
01
Vacuum furnace graphite has good high-temperature strength. At room temperature, the strength of graphite is much worse than that of metal, but its strength increases gradually with the increase of temperature, which will exceed all oxides and metals;
02
Vacuum furnace graphite is easy to obtain and cheaper than metal;
03
Graphite raw material has some properties of metals and ceramics, good electrical and thermal conductivity, multi porosity, and small coefficient of thermal expansion. Therefore, graphite has become one of the most heat-resistant and shock-resistant materials;
04
Vacuum furnace graphite has a small resistance temperature coefficient and low thermal inertia. It can be heated and cooled quickly. It has no special requirements in the process of workpiece treatment. It is more suitable for the application of a vacuum furnace heat generator;
05
It is a relatively good heating body of a vacuum furnace. Vacuum furnace graphite has the advantages of high-temperature resistance, no deformation, impact resistance, large radiation area, good flexibility, and easy processing and installation. In terms of electricity, it is easy to make large heating elements, which can increase voltage, reduce current and save heat loss.
The Chemical Properties Of Carbon In Vacuum Furnace Graphite Block
at room temperature, it is relatively stable and insoluble in water, dilute acid, dilute alkali, and organic solvents;
react and burn with oxygen at different high temperatures to produce carbon dioxide or carbon monoxide;
in halogen, only fluorine can react directly with elemental carbon;
under heating, elemental carbon is easy to be oxidized by acid;
at high temperatures, carbon can also react with many metals to form metal carbides.
Application of Graphite Block for Vacuum Furnace
Vacuum furnace graphite is not only used to manufacture heating elements and heat shields of vacuum furnaces but also used to manufacture stressed structural parts such as support, material plate, guide rail, bolt, bearing, fan blade, and so on. It is also used in silicon carbide furnaces, graphitization furnaces, and other metallurgical furnaces, resistance furnaces as furnace lining and conductive materials, as well as the impermeable graphite heat exchanger, electronics, metallurgy, chemical industry, steel, and other fields.
Again-experimenting with #pencil and eraser while sharpening-works more like #charcoal. #Drawing from photo reference. I like the feeling of #Sketchbook becoming full and getting thicker with every sketch. Very #motivational. ——— Kolejny eksperyment z niestandardowym użyciem ołówka i gumki-użycie grafitu pozostałego po ostrzeniu i zastosowanie jak węgla. #Rysunek ze zdjęcia referencyjnego. Świetne uczucie, kiedy #szkicownik robi się pełniejszy i grubszy z każdym kolejnym szkicem.
Museum of Geology - South Dakota School of Mines and Technology - Rapid City, South Dakota - Pennington County - Jun 19 2015
Graphite on Stonehenge paper. A tribute drawing to honor David Bowie. He was such a big influence on me as a kid and teen.
www.zhongtaigraphite.com/products/graphite-electrode/
Graphite electrode is a kind of high-temperature-resistant graphite conductive material, which is made of petroleum coke and pitch coke as granular materials, coal tar pitch as binder, through kneading, molding, roasting, graphitization, and machining. Carbon graphite electrode is an important high-temperature conductive material for EAF steelmaking. It inputs electric energy to EAF through graphite electrode and uses the high temperature generated by the arc between the electrode end and the charge as the heat source to melt the charge for steelmaking. Electrode de graphite is often used as a conductive material in other electric smelting or electrolysis equipment.
Graphite Electrode Application
Ordinary power graphite electrode is allowed to use graphite electrode with a current density less than 17a / cm2. It is mainly used in ordinary power electric furnaces for steelmaking, silicon smelting, and yellow phosphorus smelting.
The invention relates to an oxidation-resistant coating graphite electrode, and a graphite electrode coated with an oxidation-resistant protective layer (graphite electrode antioxidant). The formation of both conductive and high-temperature oxidation-resistant protective layers can reduce the electrode consumption (19% ~ 50%), prolong the service life of the electrode (22% ~ 60%), and reduce the electric energy consumption of the electrode.
High power carbon graphite electrode, allowing the use of current density of 18 ~ 25A / cm2 graphite electrode, mainly used in steel-making high power electric arc furnace.
Ultra-high power graphite electrode. Graphite electrode with a current density greater than 25A / cm2 is allowed. It is mainly used in ultra-high power EAF.
How to use graphite electrode
1. First of all, we need to wipe the protective cap on the opening to detect the integrity of the electrode thread.
2. On the premise of determining the integrity, the next step is to clean the internal thread of the hole and the surface of the spare graphite electrode.
3. Insert the connector into the electrode hole and connect the electrode sling to the other end.
4. When dropping the carbon graphite electrode, be careful not to let the electrode collide with other fixing devices.
5. Hang the spare electrode above the electrode to be connected. When the distance between the two electrode ends is 10-20 mm, clean the exposed parts of the two electrode ends and the joint again with compressed air. It should be lighter to avoid the damage of the electrode hole and the thread of the joint.
6. Just tighten the spark electrode.