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Tire vulcanizing capsule

A technology for curing bladders and tires, applied in the field of tire curing bladders, can solve problems such as bladder discounts, achieve the effects of small hardness changes, good physical and mechanical properties, and improved service life

Active Publication Date: 2014-07-23
SHENGFENG DAMPENER WUXI CITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Capsule discounting may occur if the capsule does not recover quickly after stretching

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Embodiment 1: A kind of tire vulcanization bladder adopts the following process steps, and the component ratio is calculated in parts by weight:

[0014] (1) 98 parts of butyl rubber, 4.96 parts of zinc oxide, 0.9996 parts of stearic acid, 7.35 parts of alkylphenol formaldehyde resin, 44.1 parts of N220 carbon black, 29.4 parts of N550 carbon black, 4.96 parts of castor oil and stannous chloride 0.735 parts were poured into a banbury mixer for banburying, the banburying time was 15 minutes, and the banburying temperature was 130° C. to obtain banbury rubber;

[0015] (2) Put the banbury rubber material into the open mill for mixing, the mixing temperature is 80°C, and the mixing time is 25 minutes. The film is discharged from the open mill to obtain a film with a thickness of 10 mm and a width of 50 mm; the film is naturally cooled to room temperature;

[0016] (3) Put the film into the screw of the injection press, the temperature of the screw is 70°C; the film is extr...

Embodiment 2

[0017] Embodiment 2: A kind of tire curing bladder adopts the following process steps, and the component ratio is calculated in parts by weight:

[0018] (1) 102 parts of butyl rubber, 5.04 parts of zinc oxide, 1.0004 parts of stearic acid, 7.65 parts of alkylphenol formaldehyde resin, 45.9 parts of N220 carbon black, 30.6 parts of N550 carbon black, 5.04 parts of castor oil and stannous chloride 0.765 parts were poured into a banbury mixer for banburying, the banburying time was 20 minutes, and the banburying temperature was 110°C to obtain banbury rubber;

[0019] (2) Put the banbury rubber material into the open mill for mixing, the mixing temperature is 90°C, and the mixing time is 15 minutes. The film is discharged from the open mill to obtain a film with a thickness of 10mm and a width of 50mm; the film is naturally cooled to room temperature;

[0020] (3) Put the film into the screw of the injection press, the temperature of the screw is 80°C; the film is extruded by th...

Embodiment 3

[0021] Embodiment 3: A tire curing bladder adopts the following process steps, and the component ratio is calculated in parts by weight:

[0022] (1) Mix 100 parts of butyl rubber, 5 parts of zinc oxide, 1 part of stearic acid, 7.5 parts of alkylphenol formaldehyde resin, 45 parts of N220 carbon black, 30 parts of N550 carbon black, 5 parts of castor oil and stannous chloride 0.75 parts were poured into a banbury mixer for banburying, the banburying time was 16 minutes, and the banburying temperature was 120°C to obtain a banburying compound;

[0023] (2) Put the banbury rubber material into the open mill for mixing, the mixing temperature is 85°C, and the mixing time is 20 minutes. The film is discharged from the open mill to obtain a film with a thickness of 10 mm and a width of 50 mm; the film is naturally cooled to room temperature;

[0024] (3) Put the film into the screw of the injection press, the temperature of the screw is 75°C; the film is extruded by the screw and w...

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Abstract

The invention relates to a tire vulcanizing capsule which comprises the following components: 98-102 pats of butyl rubber, 4.96-5.04 parts of zinc oxide, 0.9996-1.0004 parts of stearic acid, 7.35-7.65 parts of vulcanizing resin, 44.1-45.9 parts of N220 carbon black, 29.4-30.6 parts of N550 carbon black, 4.96-5.04 parts of castor oil and 0.735-0.765 parts of stabilizer, wherein the vulcanizing resin is the alkyl phenol formaldehyde resin, and the stabilizer is the stannous chloride. Compared with the prior art, tire vulcanizing capsule can be used for more times, has longer service life and achieves obvious effect of improving the tire quality. The resin used for preparing the tire vulcanizing capsule can be vulcanized rapidly, and the vulcanized rubber has good physical and mechanical properties and changes less in hardness after being aged. The stannous chloride serving as the stabilizer can ensure that the service life of the capsule used for vulcanizing can be prolonged by over 65%. The product has the advantages of temperature resistance, high strength, high elongation and low permanent deformation at break, thereby having long service life.

Description

technical field [0001] The invention relates to a tire curing bladder, in particular to a formula of the tire curing bladder. Background technique [0002] With the continuous development of the world's automobile industry and the rapid growth of global highways, there are more and more types of cars, faster and faster driving speeds, and higher and higher quality requirements for tires. Therefore, the quality requirements for tire molds are also getting higher and higher. Get better and better. Tire curing bladders are an essential tool in the vulcanization process in modern tire production. Tire curing bladders are subject to some harsh operating conditions, including high temperatures, extensive flexing, co-vulcanization, and migration of curing agents from unvulcanized green tires. The service life of the vulcanizing bladder has a great influence on the production efficiency of the tire factory. The function of the tire vulcanizing bladder is mainly to inflate the inte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/22C08L61/10C08K13/02C08K3/22C08K5/09C08K3/04C08K3/16
Inventor 王惠强张坚
Owner SHENGFENG DAMPENER WUXI CITY
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