Filled type solid tire and preparation method thereof
A solid tire and filling technology, applied to non-pneumatic tires, tire parts, tires, etc., can solve the problems of polyurethane melting, tire loss of use value, filling with rubber, etc., and achieve good heat resistance
Inactive Publication Date: 2017-02-15
中国化工集团曙光橡胶工业研究设计院有限公司
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Problems solved by technology
However, both polyurethane filling and sponge rubber filling have relatively large disadvantages: the raw material cost of polyurethane filling is high, which is 2-3 times that of ordinary rubber, and polyurethane has low heat resistance. If the tire is used for a long time, polyurethane is easy to melt, which makes the tire lose use value
Due to the existence of gaps, the carcass cannot be filled with rubber 100%
After the tire is vulcanized, there are a lot of defects in the tire carcass. The rubber filling body cannot generate enough expansion force in the carcass, and the rubber filling body cannot be fastened with the rim, making it useless
Method used
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[0022] A method for preparing a filled solid tire. After filling a tire carcass 1 with 80% (occupying the inner space of the carcass) non-foaming rubber filler 2, and then filling 20% of a sponge rubber filler 3, the filled tire Internal structure such as figure 1 shown. During vulcanization, the sponge rubber filling body 3 foams and expands, and the non-foaming rubber filling film 2 is squeezed and compacted (see figure 2 ), and the pressure generated by the foaming of the sponge rubber filling body 3 at the same time makes the filling body (non-foaming rubber filling film 2 and sponge rubber filling body 3) and the rim 4 fastened together. Specifically include the following steps:
[0023] (1) First, the non-foamed rubber and sponge rubber are made into pieces according to the size of the inner cavity of the tire;
[0024] (2) Carcass preparation: including carcass quality inspection, carcass internal cleaning and carcass brushing;
[0025] (3) Filling: First, fill t...
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The invention discloses a filled type solid tire and a preparation method thereof. After a non-foam rubber filling body occupying 60% to 90% of an inner tire space is filled into a tire body, a sponge rubber filling body occupying 10% to 40% is then filled into the tire body, the sponge rubber filling body foams and swells in the vulcanization process, non-foam rubber filling rubber sheets are squeezed and compacted, and meanwhile the filling body and a rim are fastened together through the pressure generated by foaming of the sponge rubber filling body. The filled type solid tire has the beneficial effects that the cost of a rubber material is over 50% lower than that of a polyurethane raw material, and the rubber material can be used in quantity; the heat resistant performance of the tire is better than that of a polyurethane filled tire; and the filling body of the tire is mainly the non-foam rubber filling body, and the filled type solid tire has the beneficial effects of a common solid tire of being large in load, resistant to abrasion, wearable and long in service life and has better beneficial effects than a sponge filled tire.
Description
technical field [0001] The invention relates to a tire, in particular to a filled solid tire and a preparation method thereof. Background technique [0002] At present, filled tires are mainly filled with polyurethane or sponge rubber: polyurethane filled tires are filled with polyurethane rubber through the valve to inject polyurethane rubber into the tire carcass. Since the perfusion has a certain pressure, the polyurethane can be fastened to the rim after curing, so that Form a whole; the sponge rubber fills the tire, and through the foaming action of the sponge rubber, the sponge body generates a large pressure in the carcass, so that the sponge body can be fastened to the rim. However, both polyurethane filling and sponge rubber filling have relatively large disadvantages: the raw material cost of polyurethane filling is high, which is 2-3 times that of ordinary rubber, and polyurethane has low heat resistance. If the tire is used for a long time, polyurethane is easy t...
Claims
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Login to View More IPC IPC(8): B60C7/00B60C7/10B29D30/04
CPCB60C7/00B29D30/04B60C7/105
Inventor 杨得兵
Owner 中国化工集团曙光橡胶工业研究设计院有限公司