MOQ : 1 Piece(s)
|Manufacturer, Exporter, Supplier, Retailer, Wholesaler, Distributor
|Country of Origin
|Cast Iron Surface Plates
|Click to view more
Preferred Buyer From
Good quality, close-grained, plain cast iron or alloy cast iron at least equal to grade 250 of ISO 185 shall be used; the material shall be sound and free from blow holes and porous patches. Minor defects in working surfaces of grades 2 and 3 only may be repaired by plugging with material of composition similar to that of the plate.
After being cast and rough machined, all plates of grades O and 1 and of size up to and including 400 mm x 250 mm shall be given a suitable treatment to relieve internal stresses before being tinished. H is strongly recommended that larger plates of all grades be stress-relieved by similar means; however, where facilities for this purpose are not available, such plates may be stabilized by natural ageing by agreement with the purchaser. The manufacturer shall, on request, supply the purchaser with a statement of the stress-relieving process which the plate has received.
Cast iron surface plates shall be made with adequate ribbing and the total depth [i.e. the combined thickness of the top (working surface) and the depth of the framing] shall be such that when a concentrated load is applied about the centre of the plate, the loaded area shall not deflect below the remaining area of the plate by more than 1 pm/200 N. The limiting value for deflection applies to surface plates of size 400 mm x 250 mm and larger.
Hi! Simply click below and type your query.
Our experts will reply you very soon.