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Special tyre-based rubber composition for engineering mechanical tire

A rubber composition and engineering machinery technology, applied in the field of tire rubber, can solve problems such as the inability to meet the use requirements of mobile cranes, and achieve the effect of improving basic mechanical properties

Inactive Publication Date: 2018-05-11
TRIANGLE TIRE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most of domestic mobile crane specifications such as 385 / 95R25 and 445 / 95R25 are E-grade products (meeting the vehicle speed of 70km / h), which cannot meet the needs of more and more mobile cranes, especially in the hot weather in the Middle East and Africa. Regional use requirements

Method used

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  • Special tyre-based rubber composition for engineering mechanical tire
  • Special tyre-based rubber composition for engineering mechanical tire
  • Special tyre-based rubber composition for engineering mechanical tire

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Experimental program
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Embodiment Construction

[0007] The present invention will be further described below in conjunction with embodiment:

[0008] Contains the following steps:

[0009] One-stage mixing: Start the internal mixer (the rotor type is ZZ2 rotor), set the rotor speed of the internal mixer to 50 rpm, add natural rubber, zinc oxide, stearic acid, anti-aging agent and carbon black (including white carbon black), Mix to 155°C for debinding.

[0010] The first standing still: cool the rubber to room temperature after a period of mixing.

[0011] Two-stage mixing: Start the internal mixer (the rotor type is ZZ2 rotor), set the rotor speed of the internal mixer to 45 rpm, and mix the first-stage masterbatch to 155°C for debinding.

[0012] The second standing still: cool the rubber material to room temperature after the second-stage mixing.

[0013] Final refining: start the internal mixer (rotor type is ZZ2 rotor), set the rotor speed of the internal mixer to 19 rpm, add the second-stage masterbatch, N-tert-buty...

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Abstract

The invention relates to the technical field of tire rubber, and concretely relates to a special tire-based rubber composition for an engineering mechanical tire. The special tire-based rubber composition for the engineering mechanical tire is characterized by being prepraed from the following raw materials in parts by weight: 100 parts of natural rubber as a base, 35 to 45 parts of carbon black N330, 0 to 6 parts of white carbon black, 1.0 to 3.0 parts of stearic acid, 2.0 to 5.0 parts of zinc oxide, 0.7 to 1.0 part of N-tert-butyl-2-benzothiazole sulfenamide., 1.5 to 2.5 parts of sulphur, 0.5 to 1.0 part of anti-aging agent 4020, and 0.5 to 1.5 parts of anti-aging agent RD. According to the special tire-based rubber composition for the engineering mechanical tire, provided by the invention, the dynamic heating can be reduced by 30 percent or more, meanwhile, a basic mechanical property of a rubber material is improved, and standard requirements on high speed and durability tests of F-class tire products for a travelling crane are met.

Description

technical field [0001] The invention relates to the technical field of tire rubber, in particular to a high-performance aging-resistant tire tread rubber composition. Background technique [0002] As we all know, in recent years, with the development of national infrastructure and logistics transportation industry, the demand for mobile cranes at home and abroad has gradually increased. At the same time, with the development of expressways, the durability of construction machinery tires for mobile cranes Heat puts higher demands on it. [0003] At present, most of domestic mobile crane specifications such as 385 / 95R25 and 445 / 95R25 are E-grade products (meeting the vehicle speed of 70km / h), which cannot meet the needs of more and more mobile cranes, especially in the hot weather in the Middle East and Africa. Regional usage requirements. In view of this, foreign tire giants have carried out the development of F-class tires for mobile cranes (meeting the transportation spee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08K3/04C08K3/36C08K5/09C08K3/22C08K5/47C08K13/02B60C1/00
CPCC08K3/04B60C1/0016C08K3/22C08K3/36C08K5/09C08K5/47C08K13/02C08K2003/2296C08L7/00
Inventor 刘娟高利刘亮亮孙洪沙田放
Owner TRIANGLE TIRE
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