Rolling Mill Oil Film Bearing Overview
Rolling Mill Oil Film Bearing Overview
PRODUCT
To prevent the occurrence of overheating - bearing imported bearing the workpiece
by：Waxing
2020-06-07
Not only imported bearing the workpiece surface quality of the poor, and workpiece ask crystal corrosion resistant performance degradation.
When imported bearing the workpiece serious overheating coarse grains, but also make 8 existing dimension in steel increases, easy to cause the workpiece hot working performance deterioration.
Lcrl8Ni9Ti with stainless steel body or flange when overheating, easy generation orange peel shape surface defects.
For this purpose, the prevent measures are put forward such as (
1)
Strictly control the lcrl8Ni9]
Ri stainless steel casing, flange forging heating temperature and heating time of heat preservation, prevent work-piece overheating make coarse grains.
(
2)
Artifacts in forging production, such as forging ratio is too small, the final forging temperature on the high side, also easy to appear coarse grain structure defects, should make the workpiece forging ratio appropriate, sufficient, finish forging temperature is moderate.
(
3)
Imported bearing the workpiece heat treatment solid solution treatment temperature is unfavorable and exorbitant, heat preservation time shoulds not be too long, the heating temperature should be no higher than 1150 C, the heat preservation time to 1 a l_5min/mm calculation is advisable.
(
4)
Bulky artifacts, to prevent excessive tissue can be used to forge refine grain method to eliminate defects, to prevent the occurrence of orange peel during cold deformation of workpiece surface defects, improve the surface quality of workpiece.
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