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
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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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