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Rubber for ship sealing rings

A sealing ring and rubber technology, which is applied in the direction of engine sealing, mechanical equipment, engine components, etc., can solve the problem of unreasonable formula composition and component ratio, wear resistance, seawater corrosion resistance, oil resistance and high temperature resistance of ship sealing rings Failure to meet higher quality requirements, rare and other issues

Inactive Publication Date: 2012-02-01
JIANGSU HUAYANG HEAVY IND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The wear resistance, seawater corrosion resistance, oil resistance and high temperature resistance of ship sealing rings cannot meet the high quality requirements. Grinding, seawater corrosion resistance, oil resistance, high temperature resistant rubber is still rare

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0010] Example 1. A kind of rubber for ship sealing rings is composed of the following components in mass percentage except the allowable amount of trace impurities: nitrile rubber N220: 39.3~46, spray: 8.73~11.35, high wear-resistant carbon black 330: 29.7~ 37.12, dibutyl fat: 6.55~8.73, stearic acid: 0.65~0.87, zinc oxide: 2.1~2.4, coumarone: 1.22~1.53, paraffin: 0.44~0.57, accelerator M: 0.153~0.24, accelerator DM : 0.044~0.065, Accelerator D: 0.078~0.11, Antiaging Agent D: 0.57~0.78, Antiaging Agent 4010: 0.44~0.66.

example 2

[0011] Example 2. In addition to the allowable amount of trace impurities in a rubber used for ship sealing rings, the preferred mass percentage composition is: nitrile rubber N220: 41.3-44, spray: 9.73-10.35, high wear-resistant carbon black 330: 31.7~35.12, dibutyl fat: 7.05~8.23, stearic acid: 0.7~0.82, zinc oxide: 2.1~2.3, coumarone: 1.25~1.5, paraffin: 0.48~0.53, accelerator M: 0.16~0.23, promote Agent DM: 0.046~0.063, Accelerator D: 0.083~0.105, Antiaging Agent D: 0.62~0.73, Antiaging Agent 4010: 0.49~0.61.

example 3

[0012] Example 3. In addition to the allowable amount of trace impurities in a rubber used for ship sealing rings, the composition of the optimal mass percentage is: nitrile rubber N220: 41.8-43.5, spray: 9.83-10.25, high wear-resistant carbon black 330 : 32.2~34.12, dibutyl fat: 7.1~8.18, stearic acid: 0.72~0.8, zinc oxide: 2.1~2.3, coumarone: 1.3~1.45, paraffin wax: 0.49~0.52, accelerator M: 0.17~0.22 , Accelerator DM: 0.0484~0.061, Accelerator D: 0.085~0.103, Antiaging Agent D: 0.65~0.7, Antiaging Agent 4010: 0.52~0.58.

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PUM

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Abstract

The invention relates to high-molecular materials, especially to formula improvement of rubber for sealing rings in ship sealing equipment. Besides an allowable amount of trace impurities, the rubber for ship sealing rings comprises the following components by mass: 39.3-46% of nitrile-butadiene rubber N220, 8.73-11.35% of spray, 29.7-37.12% of high wear resistant carbon black 330, 6.55-8.73% of dibutyl phthalate, 0.65-0.87% of eleaostearic acid, 2.1-2.4% of zinc oxide, 1.22-1.53% of coumarone, 0.44-0.57% of paraffin, 0.153-0.24% of a promoter M, 0.044-0.065% of a promoter DM, 0.078-0.11% of a promoter D, 0.57-0.78% of an antioxidant D, and 0.44-0.66% of an antioxidant 4010. The rubber refined by the formula of the invention has good wear resistance, seawater corrosion resistance, oil resistance and high temperature resistance, thus satisfying ship operation better.

Description

technical field [0001] The invention relates to polymer materials, in particular to the improvement of the formulation of rubber used for sealing rings in ship sealing devices. Background technique [0002] The sealing device of a ship is one of the important parts of the ship. It mainly relies on the sealing pair formed between the sealing ring and the rotating shaft (oil lubricated) or the sealing ring and the end cover to prevent seawater from entering the interior of the ship. The working environment of the sealing ring is very harsh. Good wear resistance, seawater corrosion resistance, oil resistance and high temperature resistance, especially in large shaft diameter sealing devices, the linear velocity of the lip part of the sealing ring is relatively high, which is prone to high temperature. Although the performance of the current sealing ring can meet the general needs of the ship, many shipowners want to prevent the damage of the sealing device during the operation ...

Claims

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Application Information

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IPC IPC(8): C08L9/02C08K13/02C08K3/04C08K5/10C08K5/09C08K3/22C08K5/01F16J15/00
Inventor 丁郁华丁晓阳
Owner JIANGSU HUAYANG HEAVY IND
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