Method for fabricating casting-type polyurethane elastomer tire

A technology of polyurethane tire and manufacturing method, applied in tires, household appliances, other household appliances, etc., can solve problems such as separation of wheel hub and tread

Active Publication Date: 2014-05-14
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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  • Method for fabricating casting-type polyurethane elastomer tire
  • Method for fabricating casting-type polyurethane elastomer tire
  • Method for fabricating casting-type polyurethane elastomer tire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Casting type elastomeric polyurethane tire manufacturing method, such as figure 1 shown, including the following steps:

[0048] Step A. Material Preparation

[0049] (1) Preparation of prepolymer and hardener

[0050] Select polyurethane with NCO weight content of 4.20%-4.47%; select hardener: MOCA; MOCA chooses C13H12CL2N2 with a melting point of 98°C-110°C, 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 material

[0052] Select castings and aluminum parts with a diameter of more than 170mm and steel pipes with a diameter of more than 204mm; in this embodiment, the diameter of the castings and aluminum parts is 178mm; The material is STKM13A;

[0053] Step B. Coating Treatment

[0054] Select an adhesive with a solid content of 18.50-20.50% (weight), mix 1.2-1.8 kg of MEK per 1 kg of adhesive, and then stir; put the wheel core material in the glue sprayer to apply the adhesive, Finall...

Embodiment 2

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

Embodiment 3

[0085] The basic process is the same as that of Example 1, except that polyurethane and hardener are poured into the mold in a ratio of 100:15 (by 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 method for manufacturing a polyurethane tire, in particular to a method for manufacturing a cast elastomer polyurethane tire. Background technique [0002] Solid tires are a replacement for traditional pneumatic tires used in various industrial vehicles. They are widely used in mines, factories, ports, warehouses and other places with low speed and high load. At present, solid tires are mostly rubber tires. Due to the harsh road conditions in these occasions, the road surface is uneven, the heat generated inside the rubber carcass is high, and the carcass is easy to burst due to the high interior. These will cause early damage to the tire and affect its service life. On the other hand, rubber solid tires use a large amount of carbon black for reinforcement in order to obtain better performance, so that the tires will appear black marks on the road surface during driving and pollute the environment. In some environments such ...

Claims

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Application Information

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Patent Type & Authority Applications(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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