Supercharge Your Innovation With Domain-Expert AI Agents!

HNBR sealing material for hydraulic cylinder U-shaped ring, preparation method and application of HNBR sealing material

A technology of hydraulic cylinder and rubber seal, applied in the direction of engine seals, mechanical equipment, engine components, etc., can solve the problems of NBR rubber heat resistance, poor ozone resistance, short life of seals, and poor modulus retention ability. , to achieve the effect of good compatibility, good rebound and long life

Inactive Publication Date: 2018-04-10
GUANGZHOU MECHANICAL ENG RES INST
View PDF9 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Due to the poor heat resistance and ozone resistance of NBR rubber, the modulus retention ability at high temperature is poor. If the piston rod sealing system of NBR rubber U-shaped ring + PTFE retaining ring is also used, there will be seal failure or seal failure. The problem of short life

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • HNBR sealing material for hydraulic cylinder U-shaped ring, preparation method and application of HNBR sealing material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A kind of HNBR rubber sealing material for the U-shaped ring of a hydraulic cylinder, it is made of the following raw materials in parts by weight:

[0040] 100 parts of HNBR rubber Therban A4309, 5 parts of zinc oxide, 5 parts of light magnesium oxide, 2 parts of antioxidant F-26, 40 parts of carbon black N330, 40 parts of carbon black N774, 2 parts of processing aid C-32, 5 parts Plasticizer G-25, 11.3 parts of crosslinking agent DC40P-SP2, 14 parts of co-crosslinking agent 153D, 8 parts of co-crosslinking agent SR519HP, 2 parts of wear-resistant agent WR-4012.

Embodiment 2

[0042] A kind of HNBR rubber sealing material for the U-shaped ring of a hydraulic cylinder, it is made of the following raw materials in parts by weight:

[0043] 100 parts of HNBR rubber Therban A4309, 5 parts of zinc oxide, 5 parts of light magnesium oxide, 2 parts of antioxidant F-26, 40 parts of carbon black N330, 40 parts of carbon black N774, 2 parts of processing aid C-32, 5 parts Plasticizer G-25, 11.3 parts of crosslinking agent DC40P-SP2, 14 parts of co-crosslinking agent 153D, 8 parts of co-crosslinking agent SR519HP, 3 parts of wear-resistant agent WR-4012.

Embodiment 3

[0045] A kind of HNBR rubber sealing material for the U-shaped ring of a hydraulic cylinder, it is made of the following raw materials in parts by weight:

[0046] 100 parts of HNBR rubber Therban A4309, 5 parts of zinc oxide, 5 parts of light magnesium oxide, 2 parts of antioxidant F-26, 2 parts of processing aid C-32, 40 parts of carbon black N330, 40 parts of carbon black N774, 5 parts Plasticizer G-25, 11.3 parts of crosslinking agent DC40P-SP2, 14 parts of co-crosslinking agent 153D, 8 parts of co-crosslinking agent SR519HP, 4 parts of wear-resistant agent WR-4012.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the technical field of rubber and plastic sealing, and discloses an HNBR (hydrogenated nitrile-butadiene rubber) sealing material for a hydraulic cylinder U-shaped ring and apreparation method of the HNBR sealing material. The material consists of the following components in parts by weight: 100 parts of HNBR Therban A4309, 10 parts of metal oxide, 2 parts of antioxidant,80 parts of furnace carbon black, 5 parts of plasticizer Paraplex G-25, 2 parts of processing auxiliary agent C-32, 11.3 parts of cross-linking agent, 22 parts of cross-linking auxiliary agent, and 2-5 parts of anti-wear agent WR-4012. The HNBR sealing material of the invention can improve the wear resistance, heat aging resistance and other properties.

Description

technical field [0001] The invention belongs to the technical field of rubber and plastic seals, and in particular relates to a HNBR rubber seal material for a hydraulic oil cylinder U-shaped ring and a preparation method and application thereof. Background technique [0002] In the hydraulic cylinder (working pressure is less than or equal to 21Mpa), the piston rod seal can use the sealing combination of NBR rubber U-shaped ring + PTFE retaining ring. Although the retaining ring is added, it is easy to cause damage and failure of the rubber seal under the action of oil pressure, resulting in oil leakage from the oil cylinder or even mechanical failure. [0003] When the U-shaped ring is installed into the groove, the lip is in close contact with the piston rod due to the existence of lip interference. When pressurized, the root of the U-shaped ring is deformed under the action of pressure. At this time, not only the lip, but the entire side is in contact with the piston ro...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08L15/00C08L101/00C08K13/02C08K3/22C08K3/04F16J15/10
CPCC08K2003/222C08K2003/2296C08K2201/014C08L15/00C08L2201/08C08L2205/04F16J15/102C08L101/00C08K13/02C08K3/22C08K3/04
Inventor 连晓磊肖风亮
Owner GUANGZHOU MECHANICAL ENG RES INST
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com