Coating technology requirements of the machine tool castings
author：admin time：2012-8-15 10:09:44 hits：2509

1 after the bed casting after machining, painted metal cleaner or clean industrial gasoline must rinse or brush to ensure complete removal of the surface of the oil and other contaminants.
2 primer by brush or spray, dip to be uniform, the primer must fully before use Stir diluted to the appropriate annual smudge.

3. Before coating machine bed to bed casting checks to be trimmed, the tools to be used on the surface uneven surface dirt to be removed.

4. Watermill technology polished to prevent machine castings processed surface rust, rust water needed to be polished.

5. Fill castings depression Putty to add the right amount of curing agent in accordance with the instructions for use of the product, must stir evenly before use.

6 in the last one to putty sanding to clean up, need to spray primer perchlorethylene, which can improve the flatness of the film to improve the gloss of the paint film.

Machine tool castings including bed, table, column, gantry top, connecting beam. Are made of high quality and delicate gray cast iron HT200-HT300, precise ratio, higher tensile bending strength, heat treatment process of international fashion, is reduced to a minimum degree of stress and deformation of castings. Long-term use tends to be more stable. Many factors that affect the quality of the machine tool castings, the first large machine tool castings design process. Design, according to the working conditions and metal material properties to determine the machine tool castings geometry, size, from the angle of the cast alloy and casting process characteristics must be considered reasonable, that the apparent size effect and solidification shrinkage, stress, etc., in order to avoid or reduce the production of the composition segregation of the copper pieces, deformation, cracking and other defects.