Casting type elastomeric polyurethane tire manufacturing method

A technology of a polyurethane tire and a manufacturing method, which can be applied to tires, household appliances, other household appliances, etc., can solve problems such as separation of wheels and treads

Active Publication Date: 2017-01-04
安徽台创智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention aims at the defect that the wheel hub and the tread are easily separated in the prior art, and provides a method for making a poured elastomeric polyurethane tire that is not easy to be degummed and damaged

Method used

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  • Casting type elastomeric polyurethane tire manufacturing method
  • Casting type elastomeric polyurethane tire manufacturing method
  • Casting type elastomeric polyurethane tire manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] The manufacturing method of cast elastomer polyurethane tire, such as figure 1 As shown, including the following steps:

[0048] Step A. Material preparation

[0049] (1) Preparation of prepolymer and hardener

[0050] Choose polyurethane with NCO weight content of 4.20%~4.47%; choose hardener: MOCA; MOCA choose C13H12CL2N2 whose melting point is 98℃~110℃, and the amine value of MOCA is between 7.4~7.6 (mol / g); NCO equivalent is 940%~1000%;

[0051] (2) Preparation of wheel core materials

[0052] Choose castings and aluminum parts with diameters above 170mm and steel pipes with diameters above 204mm; in this embodiment, both castings and aluminum parts use diameters of 178mm; the material of the castings is FC200, the material of aluminum parts is ACD12, Material adopts STKM13A;

[0053] Step B. Coating treatment

[0054] Choose an adhesive with a solid content of 18.50-20.50% (weight), mix 1.2-1.8kg of MEK per 1kg of the adhesive, and then stir; place the wheel core material in...

Embodiment 2

[0083] The basic process is the same as in Example 1, except that the polyurethane and hardener are poured into the mold at a percentage of 100:10 (weight).

Embodiment 3

[0085] The basic process is the same as in Example 1, except that the polyurethane and hardener are poured into the mold at a percentage of 100:15 (weight).

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Abstract

The invention relates to a method for fabricating a polyurethane tire, and discloses a method for fabricating a casting-type polyurethane elastomer tire. The method comprises the following steps: preparing materials, coating, pre-treating a mold, preheating, assembling, casting, primarily hardening and secondarily hardening. By adopting the technology disclosed by the invention, polyurethane can be tightly bonded with a wheel core surface by expanding the molecular polarity; the wheel core surface is coated; the wheel core surface is coated with a material comprising per 1kg of an adhesion agent and 1.2-1.8kg of methyl ethyl ketone (MEK) coating; the relatively great matching is generated between the polyurethane and a wheel core; the bonding strength is improved; the polyurethane and a hardening agent are cast into the mold according to the ratio of 100:(10-100):15 by weight percent in the casting process; the cast mold is hardened twice, so that the polyurethane is full in liquidity in the casting process, and air bubbles are prevented from being formed on the wheel core surface, the adhesion reduction is reduced, and the degumming is avoided.

Description

Technical field [0001] The invention relates to a manufacturing method of a polyurethane tire, in particular to a manufacturing method of a cast elastomer polyurethane tire. Background technique [0002] Solid tires are a replacement product for traditional pneumatic tires used in various industrial vehicles. They are widely used in mines, factories, ports, warehouses and other places with slow speed and high load. At present, solid tires are mostly rubber tires. Because of the harsh road conditions in these occasions, the road surface is uneven, the internal heat generation of the rubber carcass is high, and the carcass is easy to burst due to the high internal height. These will cause early damage to the tire and affect its service life. On the other hand, solid rubber tires, in order to obtain better performance, use a large amount of carbon black to reinforce, so that the tires will have black marks on the road surface and pollute the environment during driving. In some envi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C39/02B29C39/44B29B13/02B29L30/00
Inventor 杨爱林李军
Owner 安徽台创智能科技有限公司
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