Technical specifications for delivered products (elements)
The galvanizing pot has overall dimensions: length x width x height - of 4500 x 1300 x 2000 mm. So, maximal overall dimensions of products shall comprise in a limiting outline: l x w x h: 4300 x 1250 x 1900 mm. Since one of these dimensions exceed a/m, a possibility of applying the coating to be a subject of an individual settlement with The Hot Galvanizing Plant.
The Hot Galvanizing Plant doesn't apply the coating onto small elements required centrifuging (hinges, screws, nuts, washers, etc.).
The product may not include closed spaces or such that can close themselves while dipping into the pot, because it may cause an explosion. In case of appearance such spaces, the Customer is obliged to make vent holes that are diagonally spaced at the greatest widths and lengths of the product; all doubts concerned to their spacing and dimensions to be clarified with The Hot Galvanizing Plant. Please find the recommended dimensions of holes in the Table No. 1.
The product to be made of the grade of steel that is suitable for the hot galvanizing process. At the request of The Hot Galvanizing Plant, the Customer is obliged to present relevant metallurgical certificates for materials.
The products shall be designed in such a way not to allow leakage of particular substances of a chemical treatment as well as zinc.
The product shall have either holes or other constructional elements that enable its hanging during technological transportation in order to ensure proper course of the hot galvanization process.
The product's surface may not have impurities, as lacquers, paints, tar, greases, welding slag, welding silicon, etc. which removal isn't possible in the way of chemical treatment used in The Hot Galvanizing Plant (degreasing and etching). These impurities disturb a formation of the zinc coating and shall be removed by the Customer, by a stream-grind treatment, if possible (it concerns particularly to welds).
Thermally damageable sheets of bigger surfaces shall be stiffened by either enveloping or welding the reinforcements.
Diameters of tapped holes shall be 1 - 2 mm bigger than screws' diameters.
The product shall be free from welding splinters, chips in holes and feather edges.
Superposition of surfaces may not be bigger than 400 cm2 and welds to be tight.
If the superposition of surfaces occurs, the surfaces shall have vent holes that make explosions impossible while dipping into the pot.
The products should be made of the same grade of steel, their walls should be of similar thickness, because of different heating and cooling times that may cause distorting and warping the products.
The product may not include previously hot galvanized elements. Since the construction is made of sheet, its elongation shall be taken into consideration.
Constructions to be processed hardly shall be properly divided into segments.
The products shall also meet other requirements of the EN ISO 1461 Standard.
Caution: The special requirements for product to be agreed with The Hot Galvanizing Plant before the order is taken.
