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Process method for preparing static ring used for ship tail shaft sealing and lubricating

A process method and stern shaft technology are applied in the field of preparing static rings for sealing and lubricating the stern shaft of ships, which can solve the problems of easy deformation, poor heat resistance, unsuitable for use in large ships, etc., and achieve excellent lubrication and wear resistance and mechanical properties. , good mechanical properties and lubricating properties, the effect of large-scale stable production

Active Publication Date: 2015-12-16
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, my country's products and research on static rings are mainly concentrated on mechanical hydraulic seal static rings, and the types of static ring products used in ships are single and their performance is poor.
Most of the static ring products used in China are made of rubber, fluoroplastics and fluorocarbons, and most of them adopt simple hot pressing molding process. The products obtained have poor compression resistance, low line speed, poor heat resistance, and are easy to deform. Not suitable for use on large ships

Method used

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  • Process method for preparing static ring used for ship tail shaft sealing and lubricating
  • Process method for preparing static ring used for ship tail shaft sealing and lubricating
  • Process method for preparing static ring used for ship tail shaft sealing and lubricating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Dissolve 200g of phenolic resin PF6290A in 1L ethanol solvent, add silane coupling agent 3-aminopropyltriethylsilane KH-550 according to 0.5% of the weight of phenolic resin, mix well to obtain a mixed solution, soak continuous long fibers (600d) After soaking in the mixed solution, take it out, place it in an oven and dry it at 60°C to obtain reinforced long fibers impregnated with glue.

[0057] Configure the titanate coupling agent LD-144 into an ethanol solution with a solid content of 1%, and spray the titanate coupling agent ethanol solution while stirring the inorganic filler talc powder and dolomite powder at high speed in a high-speed disperser, per kilogram Spray 20mL of the inorganic filler, dry it in an oven at 90°C, and redisperse it with a high-speed disperser to obtain the activated inorganic filler.

[0058] Put the staple aramid fibers (5mm) in the mixer to loosen them, then spray the silane coupling agent KH-550 in ethanol solution with a solid content...

Embodiment 2

[0063] Dissolve 250g of phenolic resin PF6290A in 1L ethanol solvent, add silane coupling agent 3-aminopropyltriethylsilane KH-550 according to 1% of the weight of phenolic resin, mix well to obtain a mixed solution, soak continuous long fibers (400d) After soaking in the mixed solution, take it out, place it in an oven and dry it at 70°C to obtain reinforced long fibers impregnated with glue.

[0064] Configure the titanate coupling agent LD-144 into an ethanol solution with a solid content of 5%, and spray the titanate coupling agent ethanol solution while stirring the inorganic filler talc powder at a high speed in a high-speed disperser. 30mL, dried in an oven at 80°C, and re-dispersed with a high-speed disperser to obtain activated inorganic fillers.

[0065] The short fiber jute fiber (3mm) is placed in the mixer to open, and then in the still, spray silane coupling agent KH-550 solid content and be the ethanol solution of 0.8%, every kilogram of short fiber sprays 40mL,...

Embodiment 3

[0070] Dissolve 350g of phenolic resin PF6290A in 1L ethanol solvent, add silane coupling agent 3-aminopropyltriethylsilane KH-550 according to 1.5% of the weight of phenolic resin, mix well to obtain a mixed solution, soak continuous long fibers (800d) After soaking in the mixed solution, take it out, place it in an oven and dry it at 70°C to obtain reinforced long fibers impregnated with glue.

[0071] Configure the titanate coupling agent LD-144 into an ethanol solution with a solid content of 10%, and spray the titanate coupling agent ethanol solution while stirring the inorganic filler dolomite powder at a high speed in a high-speed disperser. 50mL, dried in an oven at 70°C, and re-dispersed with a high-speed disperser to obtain activated inorganic fillers.

[0072] Put short-fiber aramid fiber (1mm) in the mixer to loosen, then spray silane coupling agent KH-550 ethanol solution with a solid content of 1.5% into the kettle, spray 30mL per kilogram of short fiber, and pla...

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Abstract

The invention provides a process method for preparing a static ring used for ship tail shaft sealing and lubricating, and belongs to the technical field of sealing materials. The process method includes the steps that continuous long fibers are soaked in glue and then dried; activated short fibers, fillers and the like are evenly mixed and then humidified; the continuous fibers are coated with the mixture to obtain coated fibers; the coated fibers are twisted in a three-ply manner and are infiltrated with a prepared resin glue solution; a mold is filled in a winding and knitting manner; and the mold is buckled after drying is conducted, and hot press molding is conducted. Compared with a traditional static ring, the structure of the obtained static ring has designability and has good a chemical property and a good lubricating property; and experiments prove that the compression strength of the static ring is larger than 120 MPa, the bending strength of the static ring is larger than 60 MPa, the impact strength of the static ring is larger than 32 kJ / m<2>, and the hardness of the static ring is smaller than 75 (Rockwell, RHM).

Description

technical field [0001] The invention belongs to the technical field of sealing materials, and in particular relates to a process method for preparing a stationary ring for sealing and lubricating a ship stern shaft. Background technique [0002] The shaft sealing device is mainly composed of a friction pair, which is the general term for a moving ring and a static ring, and is the most important component of a mechanical seal. When the friction pair is running, due to the effects of spring force, sealing pressure, liquid film opening force, friction force and inertial force during operation, the static ring part wears quickly and needs to be replaced regularly, so the static ring largely determines the stern The performance and life of the shaft seal. The static ring is the dynamic sealing device with the largest seal size on the hull and the harshest working environment. The manufacturing technology of the static ring is one of the key technologies of the ship's sea-travel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C53/56B29C53/80B29C53/84B29B15/12B29B7/00
Inventor 牛利王昊宇张齐贤
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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