O-ring is a kind of vulcanized rubber sealing ring with annular cross-section. Since its cross-section is O-shaped, it is bluntly O-ring. A layer of gear oil must be applied before installation.
(1) Carry out the appearance inspection first before installation. The surface must not have shortcomings and scratches such as burrs, residues, dust, etc., and the diameter of the cross section must be uniform;
(2) Apply gear oil or grease before installation;
(3) Avoid distortion, discounts, and warping during installation. Also, avoid scratches on the equipment.
(4) The reduction of the cross-sectional diameter of the o-ring installation accounts for (δ1+δ2) from 5% to 3.5%, which is used to obtain the partial maximum value for the fixed seal, and the small value is used for the theme movable seal.
(5) When installing, consider the strength of the o-ring first to avoid being squeezed into the sealing gap. Choose the appropriate strength of the o-ring according to the sealing gap and pressure. The hardness of the rubber should change with the pressure and the size of the gap. When the working pressure is high, the strength should be slightly greater when the gap is large, and vice versa.
(6) To avoid knocks during the whole installation process, first use a file to flatten the sharp burrs or pour excessive round corners, and wrap the external threads and the surface of the healthy groove with tape at the location where it is based, and then carry out the installation. It can have a maintenance o-shape. The effect of the circle.
(7) During the storage period before installation, the O-ring should avoid contact with acid, alkaline and alkaline substances to prevent deformation and lead to a poor sealing effect.
