Aluminium processing - Import export

Chemical appearance: Oxalic acid presents as white transparent crystals that combine two water crystals. It appears in two types, the anhydrous and dihydrate form. The dihydrate has water molecules while the anhydrous one does not have any water crystals. Both types are soluble in water and are odorless Chemical application and strengths: The acid is made from the oxidation of glucose in the presence of nitric acid. It is also prepared by carboxylation of alcohol. The resulting acid has a strong reducing property while its conjugate base makes for a great chelating agent. This strength allows it to be used in the polishing of marble, bleaching and in removal of rust. It is also effective in the removal of dirt in leather, wood and aluminum products during the manufacturing process.

During the aluminum casting process, the metal melt is either poured or pressed into the mold. This process is used, for example, to manufacture cylinder heads, wheel rims and many other aluminum castings. Here, the mold has to repeatedly withstand the metal melt at a temperature of over 600 °C: for inserts made of our tungsten-heavy metal alloy Densimet® and the molybdenum alloy TZM, that's not a problem. The benefits to you: — Shorter cycle times — Top surface quality for your products — Long mold service life — No cracks in the mold insert Tailor-made mold inserts, sprue bushes, cooling inserts and other individual parts as well as semi-finished products for your mold are available.