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Method for pre-vulcanizing circular tread capable of regulating circumference

A tread and annular technology is applied in the field of manufacturing retreaded tire treads to achieve the effects of improving wear resistance, prolonging service life and reducing manufacturing costs

Inactive Publication Date: 2007-01-24
包起帆 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a method for manufacturing a pre-vulcanized annular tread with adjustable circumference, which can solve the problem in the prior art that one type of vulcanizer can only vulcanize a tire tread of one specification

Method used

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  • Method for pre-vulcanizing circular tread capable of regulating circumference
  • Method for pre-vulcanizing circular tread capable of regulating circumference

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Experimental program
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Embodiment

[0020] (1). The tread 1 is made into strips, the length is selected according to the requirements of the specification, vulcanized by a flat vulcanizer, and semi-vulcanized at 1-1 of the lap joints at both ends, the degree of semi-vulcanization is 30% of that of normal vulcanization. Between 70%, water is passed at both ends of the vulcanization model at 1-1 of the lap joint, and the water-passing interval is 200-500mm, so that the vulcanization temperature is 10-20°C lower than the normal vulcanization temperature, and the rest of the tread is 1-2 Bits are vulcanized.

[0021] (2). After the other parts 1-2 of the tread are being vulcanized, the semi-vulcanized overlapping surface 1-1 is roughened first, and the glue is painted, and after volatilization, supplementary vulcanization is carried out. The overlapping surface 1-1 is annularly vulcanized to achieve positive vulcanization.

[0022] In the above process method, the vulcanization pressure is 80-150kg / cm 2 .

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Abstract

The present invention is production process of pre-vulcanized circular tread in adjustable circumference and aims at vulcanizing tire treads of different sizes in the same circular vulcanizing machine. The production process includes the following steps: 1. vulcanizing the tread in a flat vulcanizing machine through partially vulcanizing the end lapping parts and completely vulcanizing the other parts; and 2. further vulcanizes the end lapping parts in a jaw vulcanizing machine for complete vulcanizing. The present invention makes it possible to vulcanize tire treads of different sizes with only one flat vulcanizing machine and one jaw vulcanizing machine, and this result in greatly reduced investment.

Description

technical field [0001] The invention relates to a manufacturing method of retreaded tire tread, in particular to the improvement of the existing manufacturing method of retreaded tire tread. Background technique [0002] After a certain period of use, tires need to be retreaded due to tread wear and other reasons. The latest manufacturing method of the tread of the existing retread tire in the world is to vulcanize the annular tread on a tread ring vulcanizer, thereby making the tread. The weak point of this method is: 1. because the tire tread of a kind of specification corresponds to the vulcanizing machine of a kind of model, and the specification of tire is more, in addition the tire external diameter of same specification is different manufacturer also has certain difference, this Several types of vulcanizing machines are needed to manufacture several types of tire treads. The price of a single vulcanizing machine is relatively high. Obviously, several vulcanizing mach...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C35/02B29L30/00
Inventor 包起帆刘曾凡朱德明
Owner 包起帆
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