TIGHTENING FLANGE JOINTS BY MEANS OF HERMETICALLY SEALING PLASTIC,
DEPARTMENT OF THE NAVY WASHINGTON D C
Pagination or Media Count:
Unusual watertightness of flange joints is obtained by placing a suitable packing between the tightening flanges. Additional adjusting work in assembling flange joints may be avoided by using a special binding plastic deposited on the tightening surfaces of the flanges which fills all the micro- and macro-irregularities when tightening the flanges with the joining bolts. Under such conditions the plastic must be self hardening. The indicated requirements are met by hermetically sealing plastic based on an epoxy resin Mark ED-5 TU LSNKh No. 33029-59 and an epoxy putty mark EPOOIO GOST 10277-62. Polyethylenepolyamin VTU MKhP No. P-10-57 serves as the hardening agent, portland cement 500 GOST 965-41 and chopped glass fiber VTU No. 836-60 as fillers. A hermetically sealing plastic is resistant to vibration and impact loads, and to oil and gaso1ine and as a consequence of its insignificant shrinking it maintains relatively stable condition of the joined flanges.
- Adhesives, Seals and Binders
- Couplers, Fasteners and Joints