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Fatigue-resistant chloroprene rubber air spring air bag and preparation method thereof

An air spring, neoprene technology, applied in the manufacture of spring/shock absorber, spring, spring/shock absorber, etc., can solve the problem of fatigue durability, puncture resistance and air tightness, reduce service life, The influence of the service life of the air spring, etc., can improve the air tightness and interlayer adhesion performance, be easy to manufacture, and ensure the air tightness.

Inactive Publication Date: 2020-07-21
BEIJING RES & DESIGN INST OF RUBBER IND
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the airbags used in air springs on automobiles have natural rubber formula, natural rubber and neoprene formula. The former is difficult to balance fatigue durability, anti-puncture performance and airtight performance. Although the latter considers the three properties However, the combination of natural rubber and neoprene still has poor fatigue durability, and the service life of the air spring is affected
These two methods are easy to cause early damage to the air spring and reduce its service life

Method used

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  • Fatigue-resistant chloroprene rubber air spring air bag and preparation method thereof
  • Fatigue-resistant chloroprene rubber air spring air bag and preparation method thereof
  • Fatigue-resistant chloroprene rubber air spring air bag and preparation method thereof

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Experimental program
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Effect test

Embodiment Construction

[0028] In specific implementation, the air bag body of the anti-fatigue neoprene air spring is composed of an inner rubber layer, a skeleton reinforcement layer and an outer rubber layer, and the weight ratio of its raw material components is:

[0029] The inner layer glue and the outer layer glue adopt the same ratio (Table 1):

[0030]

[0031] Cord reinforcing layer adhesive ratio (Table 2):

[0032]

[0033] Between the inner and outer layers of glue, there are two layers of cross-arranged reinforcement layers of the same type of rubberized nylon cord skeleton material.

[0034] The preparation process is carried out as follows:

[0035] 1) Weigh the various raw material components of the inner and outer rubber layers and the skeleton reinforcement layer glue according to the weight ratio, and process them into the inner and outer layer rubber compound and the skeleton reinforcement layer rubber compound by internal mixer and open mixer respectively.

[0036] 2) Us...

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Abstract

The invention discloses a fatigue-resistant chloroprene rubber air spring air bag and a preparation method thereof. The preparation method comprises proportioning, mixing and extruding steps, takes pure chloroprene rubber as a main body rubber material to inner and outer layer rubber and cord fabric rubber of an air spring air bag for an automobile. The air bag of the air spring has better flexural fatigue resistance, the service life of the air spring is prolonged, and meanwhile various comprehensive properties of the air spring are better. Test results prove that the fatigue durability and the comprehensive performance of the air spring adopting the air bag are effectively improved.

Description

technical field [0001] The invention relates to a fatigue-resistant neoprene air spring airbag and a preparation method thereof. The fatigue-resistant neoprene air spring airbag uses pure neoprene as the main rubber material to design the special ratio of inner and outer layer rubber and cord fabric skeleton material glue, and formulates and implements the mixing and calendering film preparation process for this rubber material. method. The fatigue-resistant neoprene air spring airbag is mainly used for air spring vibration reduction in cabs of heavy vehicles, and can effectively improve the service life of the air spring. The invention belongs to the technical field of air spring rubber airbag production. Background technique [0002] Ordinary car air spring airbags are usually damaged because the service life of the airbag is not long enough or the moisture in the air enters the system, and the aging and cracking of the rubber may cause the air suspension to fail. Debris...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B25/10B32B25/14B32B27/02B32B27/06B32B27/34B32B33/00C08L11/00C08L91/06C08L91/00C08K13/02C08K5/09C08K5/18C08K3/22F16F9/05F16F9/32B29D22/02
CPCB32B25/10B32B25/14B32B5/02B32B27/06C08L11/00F16F9/3207F16F9/05B29D22/023B32B2307/552B32B2307/558B32B2605/08B32B2307/7242B32B2262/0261C08K2003/2296C08K2003/222C08L2205/03C08L2205/02F16F2226/04F16F2224/02C08L91/06C08L91/00C08K13/02C08K5/09C08K5/18C08K3/22
Inventor 洪宗跃曾季蔡庆李文东李鹏徐立
Owner BEIJING RES & DESIGN INST OF RUBBER IND
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