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Polyurethane solid tyre and manufacturing method thereof

A technology for solid tires and manufacturing methods, which is applied to tire parts, non-pneumatic tires, transportation and packaging, and can solve the problems of poor application effect of polyurethane solid tires, poor heat conduction and heat dissipation performance of the wheel core, and increased carcass temperature. , to achieve the effects of easy industrial production, good heat dissipation performance and long service life

Inactive Publication Date: 2008-07-09
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solid tires are characterized by large internal heat generation. The wheel core made of the above materials has poor thermal conductivity and heat dissipation performance. Under relatively high load conditions, the temperature of the carcass rises, which is also easy to cause early damage to the tire.
Therefore the polyurethane solid tire application effect of this structure is not good

Method used

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  • Polyurethane solid tyre and manufacturing method thereof
  • Polyurethane solid tyre and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] The manufacture of single-layer polyurethane solid tires uses polyurethane materials to be directly bonded to metal rims, specifically including the following steps and process conditions:

[0046] Step 1: Surface treatment of the metal rim

[0047] (1) Preparation of adhesive:

[0048] Take 45 parts by weight of Chemlock 218, add it to 55 parts by weight of isopropanol and ethyl acetate mixed solvent, the weight percentage of isopropanol in the mixed solvent is 50%, stir and mix evenly;

[0049] (2) Rim surface treatment process:

[0050] will be like figure 1 , 2 Sandblast the surface of the metal rim 1 shown, then degrease and degrease the surface with ethyl acetate. After cleaning, evenly spray or brush the adhesive prepared in step 1 (1), park at room temperature for 0.5 hours, and then put it in an oven at 120°C Baking for 1 hour, ready for pouring;

[0051] Step 2: Preparation of polyurethane prepolymer system

[0052]Weigh 100 parts by weight of polytetrah...

Embodiment 2

[0064] The manufacture of single-layer polyurethane solid tires uses polyurethane materials to be directly bonded to metal rims, specifically including the following steps and process conditions:

[0065] Step 1: Surface treatment of the metal rim

[0066] (1) Preparation of adhesive:

[0067] Take 50 parts by weight of Chemlock 213, add it to 50 parts by weight of isopropanol and methyl ethyl ketone mixed solvent, the weight percentage of isopropanol in the mixed solvent is 45%, stir and mix evenly;

[0068] (2) Rim surface treatment process:

[0069] will be like figure 1 , 2 Sandblast the surface of the metal rim 1 shown, then degrease and degrease the surface with ethyl acetate. After cleaning, evenly spray or brush the adhesive prepared in step 1 (1), park at room temperature for 40 minutes, and then put it in an oven at 120°C Bake for 30 minutes, ready for pouring;

[0070] Step 2: Preparation of polyurethane prepolymer system

[0071] Weigh 40 parts by weight of p...

Embodiment 3

[0083] The manufacture of double-layer polyurethane solid tires uses polyurethane materials to be directly bonded to metal rims, specifically including the following steps and process conditions:

[0084] Step 1: Surface treatment of the metal rim

[0085] (1) Preparation of adhesive:

[0086] Take 55 parts by weight of Chemlock 219 and add it to 45 parts by weight of a mixed solvent of isopropanol and ethyl acetate. The weight percentage of isopropanol in the mixed solvent is 55%, just stir and mix evenly;

[0087] (2) Rim surface treatment process:

[0088] will be like figure 1 , 2 Sandblast the surface of the metal rim 1 shown, then degrease and degrease the surface with ethyl acetate. After cleaning, evenly spray or brush the adhesive prepared in step 1 (1), park at room temperature for 1 hour, and then put it in an oven at 120°C Bake for 45 minutes, ready for pouring;

[0089] Step 2: Preparation of polyurethane prepolymer system

[0090] (1) Weigh 100 parts by wei...

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Abstract

The invention relates the making method of polyurethane solid tyre used for industry vehicle. The polyurethane solid tyre comprises the metal rim which has supporting and conveying action and the single-lay or double-lay polyurethane which is bonded on metal rim. The single-lay or double-lay polyurethane used in outer layer is oligomer polyatomic alcohol- methyl diphenylene diisocyanate / toluene diisocyanate, and the single-lay or double-lay polyurethane used in inner layer is oligomer polyatomic alcohol-3,3'- dimethyl-4,4'-biphenyl diisocyanate. The carcass has the advantages of long lifetime, non pollution, good heat-sinking capability and not blasting. The cost is low, technology is simple, and it is easy to realize the industrial production.

Description

technical field [0001] The invention relates to polyurethane tire manufacturing technology, in particular to a polyurethane solid tire suitable for industrial vehicles and a manufacturing method thereof. Background technique [0002] Solid tires are the replacement products of traditional pneumatic tires used in various industrial vehicles. They are widely used in mines, factories, ports, warehouses and other occasions with slow speed and high load. Currently, solid tires are mostly rubber tires. Due to the harsh road conditions and uneven road surfaces in these occasions, solid rubber tires are prone to pattern loss and delamination. At the same time, due to the large load, the heat generated inside the rubber carcass is high, and the carcass is easy to burst due to high internal temperature. These will cause early damage to the tire and affect its service life. On the other hand, in order to obtain better performance, rubber solid tires use a large amount of carbon black...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60C7/24
Inventor 易玉华童真马铁军张海汪浩
Owner SOUTH CHINA UNIV OF TECH
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