The raw materials selections of the manifold blocks
The raw materials selection to withstand the low pressure manifold block is generally used in ductile iron is better, because of its workability, especially for deep hole machining. The thickness of the cast iron block should not be too large, because with increasing thickness , the internal organization of sulfur pine tend to be larger, the effect of pressure on oil prone to leakage, it is not appropriate for high-pressure situations. To bear in the high-pressure manifold block, the general election of no. 20 steel, no. 35 steel and no. 45 steel;
Withstand high pressure manifold block and the best selection of forged steel, mobile machinery and injection molding machines, machine tools and other special requirements of the occasion, then pay attention to the strength design to reduce weight when sometimes also used aluminum alloy manufacturing Manifold.
The materials of steel may not have defects such as Chlamydia trachomatis, dissecting and, if necessary, should be testing. Cast iron blocks and large steel block before processing should be aging treatment or annealing, to eliminate internal stress. If it is the high pressure system, the above requirements, material selection of 45 steel manifold.