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High-pressure sealing element and preparation method thereof

A high-pressure sealing and high-quality technology, applied in the field of material processing, can solve the problems of continuous production, low production efficiency, and poor durability of enterprises, and achieve the effects of improving comprehensive mechanical properties, increasing production efficiency, and reducing tissue stress

Inactive Publication Date: 2019-11-22
安徽龙行密封件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition to environmental factors such as the installation of seals, if the quality or performance of the seals is not satisfactory, it will cause low production efficiency, damage the equipment or even bring unpredictable hazards, especially in the case of high working pressure. The pressure resistance requirements of the parts will be higher
[0003] In the existing market, people have developed a variety of functional seals for seals, but most seals can only be used for about one month or even less, and their durability is poor, which has a negative impact on the continuous production of enterprises.

Method used

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  • High-pressure sealing element and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] High-pressure seals, in parts by mass, consist of the following components:

[0020] JSRN250S 6 parts, JSRN240S 14 parts, semi-reinforcing N77025 parts, oil Plasthall-2262.4 parts, zinc oxide 1 part, stearic acid 0.2 parts, antioxidant RD 0.4 parts, antioxidant MB 0.2 parts, oleic acid amide CP 0.4 parts, Anti-scorch agent PVI 0.06 parts, DTDM 0.4 parts, S-800.08 parts, TMTD 0.1 parts, CZ 0.4 parts, TE 0.3 parts.

[0021] The method for preparing high-pressure seals includes the following steps: put JSRN250S, JSRN240S, and semi-reinforced N770 into an internal mixer for 2 minutes at a temperature of 180° C.; then add oil Plasthall-226 and knead for 3 minutes, unload Material, cooled to room temperature and put into the open mill, adding zinc oxide, stearic acid, anti-aging agent RD, anti-aging agent MB, oleic acid amide CP, anti-scorch agent PVI, fully mixed for 6min by double-roller rubber mixing machine, controlled The temperature is 160°C, the mixed rubber is prepar...

Embodiment 2

[0023] High-pressure seals, in parts by mass, consist of the following components:

[0024] JSRN250S 5 parts, JSRN240S 12 parts, semi-reinforcing N77023 parts, oil Plasthall-2262.2 parts, zinc oxide 0.5 parts, stearic acid 0.1 parts, antioxidant RD 0.3 parts, antioxidant MB 0.1 parts, oleic acid amide CP 0.3 parts, Anti-scorch agent PVI 0.05 parts, DTDM 0.3 parts, S-800.06 parts, CZ 0.3 parts, TE 0.2 parts.

[0025] The method for preparing high-pressure seals includes the following steps: put JSRN250S, JSRN240S, and semi-reinforced N770 into an internal mixer for mastication at 182°C for 2.5 minutes according to the mass parts of the raw materials; then add oil Plasthall-226 and knead for 5 minutes, Unload, cool to room temperature and put into the open mill, add zinc oxide, stearic acid, anti-aging agent RD, anti-aging agent MB, oleic acid amide CP, anti-scorch agent PVI, and use a double-roller rubber mixer to fully mix for 8 minutes. The temperature is controlled at 170°C...

Embodiment 3

[0027] High-pressure seals, in parts by mass, consist of the following components:

[0028] 7 parts of JSRN250S, 15 parts of JSRN240S, 26 parts of semi-reinforcing N7702, 2.5 parts of oil Plasthall-226, 1.5 parts of zinc oxide, 0.3 parts of stearic acid, 0.5 parts of anti-aging agent RD, 0.3 parts of anti-aging agent MB, 0.5 parts of oleic acid amide CP, Anti-scorch agent PVI 0.07, DTDM 0.5, S-800.09, TMTD 0.2, CZ 0.5, TE 0.4.

[0029] The method for preparing high-pressure seals includes the following steps: put JSRN250S, JSRN240S, and semi-reinforced N770 into an internal mixer for 3 minutes at a temperature of 186° C.; then add oil Plasthall-226 and knead for 8 minutes, unload material, cooled to room temperature and put into the open mill, adding zinc oxide, stearic acid, anti-aging agent RD, anti-aging agent MB, oleic acid amide CP, anti-scorch agent PVI, using a double-roller rubber mixing machine to fully mix for 7min, control The temperature is 165°C, the mixed rubber...

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Abstract

The invention discloses a high-pressure sealing element and a preparation method thereof, and relates to the technical field of material processing. The high-pressure sealing element is prepared fromraw materials such as JSRN250S, JSRN240S, semi-reinforced N770, oil Plasthall-226 and the like according to a certain proportion through plastifying, kneading, mixing, hot rolling, cold rolling, vulcanizing and subsequent treatment methods. The prepared high-pressure sealing element is excellent in physical performance, high in extrusion resistance, suitable for high-pressure working condition environments, better in comprehensive performance than existing varieties and good in market prospect.

Description

technical field [0001] The invention relates to the technical field of material processing, in particular to a high-pressure seal and a preparation method thereof. Background technique [0002] Seals are important mechanical basic components. The quality and functionality of seals affect the reliability of the equipment. In addition to environmental factors such as the installation of seals, if the quality or performance of the seals is not satisfactory, it will cause low production efficiency, damage the equipment or even bring unpredictable hazards, especially in the case of high working pressure. The pressure resistance requirements of the parts will be higher. [0003] In the existing market, people have developed a variety of functional seals for seals, but most seals can only be used for about one month, or even a shorter time, and their durability is poor, which has a negative impact on the continuous production of enterprises. Contents of the invention [0004] T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/02C08L91/00C08K13/02C08K3/22C08K5/09C08K5/20C08K5/40C08K5/3437C08K5/37C08K5/43C08K5/47B29C69/00B29L31/26
CPCB29C69/00B29L2031/265C08K2003/2296C08L9/02C08L2205/025C08L2205/03C08L91/00C08K13/02C08K3/22C08K5/09C08K5/20C08K5/40C08K5/3437C08K5/37C08K5/43C08K5/47
Inventor 彭常龙
Owner 安徽龙行密封件有限公司
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