Processing and preparation process for floating oil seal

Abstract

The invention provides a processing and preparation process for a floating oil seal. The processing and preparation process for the floating oil seal comprises the following steps of precoated sand modeling through a rubber mold, casting, shot blasting, blank check, grinding, quenching heat treatment, oil grinding, cleaning, oil injection, installation of a rubber ring, check, packaging, storage and the like. The processing and preparation process for the floating oil seal has the beneficial effects that the formula and the process are simple, and industrialization is achieved easily; the performance of castings obtained from the as-cast mode is greatly improved; by adding low-phosphorus steel scraps in the castings, the performance of the castings is effectively improved and the production cost of the castings is reduced; by adding ferromanganese in the castings, sufficient toughness is achieved, the pearlite content can be increased, and high strength and hardness are obtained; by adding silicon carbide in the castings, the abrasion resistance of the castings can be improved and the service life is doubled or tripled; by adding a proper quantity of copper scraps and tin scraps inthe castings, generation of pearlite can be effectively promoted, and texture crystal grains are refined; and a grinding machine grinds both the upper surface and the lower surface so that the flatness and smoothness of the outer surface of the floating oil seal can be ensured.

Description

technical field [0001] The invention relates to the technical field of processing and preparation of floating oil seals, in particular to a processing and preparation process of floating oil seals. Background technique [0002] Floating oil seal is a special form of non-contact mechanical seal. It is a compact mechanical seal developed to adapt to harsh working environments. It has strong anti-pollution ability, wear resistance, impact resistance, and reliable operation. End face wear automatic compensation, simple structure and other advantages. At present, floating oil seals are widely used in construction machinery, coal mining machinery, construction machinery, petroleum machinery and aviation ships, among which the most common application is in construction machinery products, including various conveyors, sand processing equipment, coal mining equipment, concrete equipment And so on have applications. [0003] Traditional production and processing of floating oil seal...

AI Technical Summary

Problems solved by technology

At present, the floating oil seals on the market have poor wear resistance and heat resistance, the hardness is generally lower than HRC62-65, the sealing performance is not good, the service life is generally lower than 4500 hours, and it is easy to be damaged when used under high-intensity operating conditions.

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