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Vehicle high-loading-resistance steering gear bushing rubber material and preparation method thereof

A technology of rubber materials and steering gears, which is applied in the field of high-load-resistant steering gear bushing rubber materials for automobiles and its preparation, and can solve the problems of smaller design of steering gear bushings, inability to meet high load and durability requirements of steering gears, etc. , to achieve the effect of solving stickiness and cracking, excellent wear resistance and durability, and long service life

Active Publication Date: 2014-08-13
ASIMCO NVH TECH CO LTD ANHUI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Steering gear bushing device is a key component used in automobile steering system and noise reduction and vibration isolation. The quality of bushing products is directly related to the accuracy and comfort of steering. Most bushing products are natural rubber products, and the normal load At 3000-5000N, with the improvement of automobile level and the requirements of lightweight automobile design, the steering gear bushing must not only be designed smaller, but also bear the load of 6000-8000N. The bushing material prepared by using the traditional formula can no longer Meet the high load and durability requirements of the steering gear

Method used

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  • Vehicle high-loading-resistance steering gear bushing rubber material and preparation method thereof
  • Vehicle high-loading-resistance steering gear bushing rubber material and preparation method thereof
  • Vehicle high-loading-resistance steering gear bushing rubber material and preparation method thereof

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preparation example Construction

[0023] refer to figure 1 , a kind of preparation method of high-load resistant steering gear bushing rubber material for automobiles, comprising the steps of:

[0024] S1. One-stage mixing: put natural rubber, styrene-butadiene rubber, butadiene rubber and homogeneous resin in an internal mixer and knead for 40-60s, then add zinc oxide, stearic acid, 2,2,4-trimethyl -1,2-dihydroquinoline polymer, N-isopropyl-N-phenyl-p-phenylenediamine and compound paraffin are mixed to 80-100 ° C, then white carbon black and silane coupling agent are added to banbury to 110-130°C, where the top bolt is lifted once at 117-123°C, and the time is 13-16s; then add carbon black and mix to 140-160°C and then discharge the glue to obtain a section of glue, which is at 134-136°C and At 153-155°C, lift the top bolt once for 15-30s;

[0025] S2, two-stage mixing: park the first-stage rubber prepared in S1 for 8-16 hours, add sulfur, N-cyclohexyl-2-benzothiazole sulfenamide and mix to 110-130°C, then ...

Embodiment 1

[0028] The high-load-resistant steering gear bushing rubber material for automobiles proposed in this embodiment 1, its raw materials include by weight:

[0029]

[0030]

[0031] The preparation method of the above-mentioned high-load-resistant steering gear bushing rubber material for automobiles comprises the following steps:

[0032] S1, one-stage mixing: put natural rubber SMR5, styrene-butadiene rubber, butadiene rubber BR9000 and uniform resin 40MSF in the internal mixer and mix for 50s, then add zinc oxide, stearic acid, 2,2,4-trimethyl Base-1,2-dihydroquinoline polymer, N-isopropyl-N-phenyl-p-phenylenediamine and compound paraffin OK1987 were mixed to 90°C, then added precipitation white carbon black 175GR and silane coupling agent Logsil4C is mixed to 125°C, and the top bolt is lifted once at 120°C for 15s; then carbon black N-220 is added and mixed to 160°C, and then the glue is removed to obtain a section of glue, in which at 135°C and 155°C Lift the top bol...

Embodiment 2

[0036] The high-load-resistant steering gear bushing rubber material for automobiles that present embodiment 2 proposes, its raw materials include by weight:

[0037]

[0038]

[0039] The preparation method of the above-mentioned high-load-resistant steering gear bushing rubber material for automobiles comprises the following steps:

[0040] S1, one-stage mixing: put natural rubber, styrene-butadiene rubber, butadiene rubber and homogeneous resin in an internal mixer and knead for 40 seconds, then add zinc oxide, stearic acid, 2,2,4-trimethyl-1 , 2-dihydroquinoline polymer, N-isopropyl-N-phenyl-p-phenylenediamine and compound paraffin are mixed to 100°C, then white carbon black and silane coupling agent are added to banbury to 125°C, of ​​which Lift the top bolt once at 120°C for 13s; then add carbon black and mix to 155°C and discharge the glue to obtain a section of glue, in which the top bolt is lifted once at 134°C and 152°C for 30s;

[0041] S2. Second-stage mixin...

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Abstract

The present invention discloses a vehicle high-loading-resistance steering gear bushing rubber material, wherein the raw materials comprise, by weight, 40-50 parts of a natural rubber, 30-40 parts of a styrene butadiene rubber, 10-20 parts of a cis-1,4-polybutadiene rubber, 5-10 parts of zinc oxide, 1-3 parts of stearic acid, 1-3 parts of poly(1,2-dihydro-2,2,4-trimethyl-quinoline), 2-4 parts of N-isopropyl-N-p-phenylenediamine, 2-4 parts of a composite paraffin, 15-25 parts of carbon black, 3-6 parts of a uniform resin, 8-12 parts of white carbon black, 1-2 parts of a silane coupling agent, 2 parts of sulfur S-80, and 2 parts of N-cyclohexyl-2-benzothiazole sulfenamide. The present invention further discloses a preparation method for the vehicle high-loading-resistance steering gear bushing rubber material. The vehicle high-loading-resistance steering gear bushing rubber material has characteristics of particularly excellent wear resistance, particularly excellent durability, particularly excellent heat resistance, high loading resistance, excellent aging resistance and use cost saving.

Description

technical field [0001] The invention relates to the technical field of purification of steering gear bushing rubber materials, in particular to a high-load-resistant steering gear bushing rubber material for automobiles and a preparation method thereof. Background technique [0002] Steering gear bushing device is a key component used in automobile steering system and noise reduction and vibration isolation. The quality of bushing products is directly related to the accuracy and comfort of steering. Most bushing products are natural rubber products, and the normal load At 3000-5000N, with the improvement of automobile level and the requirements of lightweight automobile design, the steering gear bushing must not only be designed smaller, but also bear the load of 6000-8000N. The bushing material prepared by using the traditional formula can no longer Meet the high load and durability requirements of the steering gear. Contents of the invention [0003] The invention propo...

Claims

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Application Information

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IPC IPC(8): C08L7/00C08L9/06C08L9/00C08K13/06C08K9/06C08K3/22C08K5/09C08K5/3437C08K5/18C08K5/01C08K3/04C08K3/36C08K3/06C08K5/47B29C35/02B29B7/72
Inventor 姚能品
Owner ASIMCO NVH TECH CO LTD ANHUI
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