Preparation method of magnetic positioning formed tire

A magnetic positioning and tire technology, applied to tires, household appliances, and other household appliances, can solve the problems of short service life, poor wear resistance of tires, and many production processes, so as to save tire costs, improve production efficiency, and position way convenient effect

Pending Publication Date: 2018-12-14
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current tires generally have the problems of poor wear resistance and short service life.
[0003] Traditional bias tires and radial tires have many production processes, equipment, and high energy consumption. Therefore, seeking a new production process to replace the traditional process, simplifying the production process, reducing equipment, and reducing energy consumption has become a long-term solution for the tire industry. a big subject

Method used

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  • Preparation method of magnetic positioning formed tire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Heat the mixed rubber with natural rubber as the raw rubber system to 120°C, position the skeleton material in the tire mold in the mold, and fix the skeleton material in the tire mold in a four-point positioning method in the mold, with a positioning deviation of 0.03mm. The electromagnetic force is adjusted to 0.3T, and a layer of 0.1mm thick silicone grease release agent is sprayed on the inner wall. The skeleton material is composed of steel wire, which adopts a radially wound steel wire structure. Start the injection machine to inject into the tire mold, and fill the mold to maintain a pressure of 2.5MPa. , keep warm at 130°C, release the mold after 30 minutes, compound a layer of polyurethane gas barrier film inside the tire, with a thickness of 1.2mm; vulcanize at 145°C, release the mold after 1 hour, cool and solidify, mold and release to obtain the tire matrix; on the surface of the tire matrix pattern Coating 0.01mm thick solution of trichloroisocyanuric acid w...

Embodiment 2

[0045] Heat the mixed rubber with ethylene-propylene rubber as the raw rubber system to 110°C, position the skeleton material in the tire mold in the mold, and fix the skeleton material in the tire mold with a three-point positioning method in the mold, with a positioning deviation of 0.03mm , the electromagnetic force is adjusted to 0.4T, the inner wall is sprayed with a layer of silicone grease release agent with a thickness of 0.1mm, the skeleton material adopts a radially wound steel wire structure, and the pouring machine is started to inject it into the tire mold, and the mold is filled to maintain a pressure of 3.5MPa, 160°C Vulcanize, release the mold after 49 minutes, cool and mold and demould to obtain the tire matrix; use the pressure-sensitive hot-melt adhesive elastomer as the anti-puncture protective layer to precisely spray on the inner wall of the tire with a thickness of 2mm; coat the surface of the tire matrix pattern 0.01mm thick trichloroisocyanuric acid is ...

Embodiment 3

[0047] Heat the mixed rubber with neoprene as the raw rubber system to 120°C, position the skeleton material in the tire mold in the mold, and fix the skeleton material in the tire mold with a six-point positioning method in the mold, with a positioning deviation of 0.01mm , the permanent magnetic force is set to 0.2T, and the inner wall is sprayed with a layer of 0.2mm thick polyurethane water-based release agent. The skeleton material is composed of steel wire and adopts a preformed single-layer mesh structure. Start the injection machine and inject it into the tire mold. Fill the mold to keep Press 4MPa, vulcanize at 160°C, release the mold after 65min, cool and mold and demould to obtain the tire base; use the pressure-sensitive hot-melt adhesive elastomer as an anti-puncture protective layer to precisely spray on the inner wall of the tire with a thickness of 2mm; on the tire base Apply a 0.05 mm thick solution of trichloroisocyanuric acid with methyl ethyl ketone as a sol...

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Abstract

The invention discloses a preparation method of a magnetic positioning formed tire. The method comprises specific steps as follows: a mold release agent is uniformly smeared in a mold, a bead ring ina framework material is fixed by a magnetic element arranged in the mold, and inner positioning of the framework material is finished. The framework material and the magnetic element of the mold formtension to shape and position the framework material. An elastomer is heated and then injected into the tire mold, after the mold is full, the mold is taken out after pressure maintaining and thermalinsulation, a thermoplastic film or anti-pricking coating is applied to an inside liner of a prepared tire base body, and the tire is obtained. After the tire is worn in use, a white carbon black composite elastomer material can be applied to the surface to finish repair. The method is simple in process, the tire preparation process is simplified by the magnetic positioning technology, the tire isprepared through magnetic positioning forming, the method is high in operability and prone to industrialization, the obtained tire is excellent in wear resistance and oil-saving, the surface coatingcan be repaired immediately, the purpose of long service life of the tire is achieved, resources are saved and the environment is protected.

Description

technical field [0001] The invention relates to a method for preparing tires formed by magnetic positioning, which is mainly used for preparing tires and is suitable for most tire production. Background technique [0002] Tires are ground-rolling circular elastic rubber products assembled on various vehicles or machinery. They are usually installed on metal rims, which can support the body, buffer external impact, realize contact with the road surface and ensure the driving performance of the vehicle. Tires are often Used under complex and harsh conditions, it is subjected to various deformations, loads, forces, and high and low temperature effects during driving, so it must have high load-bearing performance, traction performance, and cushioning performance. At the same time, it also requires high wear resistance. and flex resistance, as well as low rolling resistance and heat generation. However, tires generally have the problems of poor wear resistance and short service ...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): B29D30/32B29D30/08
Inventor王益庆沈家锋张立群
OwnerBEIJING UNIV OF CHEM TECH