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Preparation method of high-heat-conductivity type tire vulcanization capsule

A technology of tire vulcanization and high thermal conductivity, which is applied in the field of tire manufacturing, which can solve the problems of insufficient thermal conductivity, shorten mixing time, reduce tires, etc., achieve stable physical and mechanical performance indicators, shorten mixing time, and improve uniformity.

Inactive Publication Date: 2018-06-15
YONGYI RUBBER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The invention provides a preparation method of a high thermal conductivity type tire curing bladder, which overcomes the shortcomings of insufficient thermal conductivity in the prior art, fully improves the thermal conductivity of the tire curing bladder, and at the same time ensures the tear resistance, elongation, and Various physical and mechanical performance indicators such as hardness, strength, elasticity and constant elongation stress are relatively stable; on the basis of not affecting product performance, it can provide more heat per unit time, thereby reducing the vulcanization time of tires, saving energy and Improve the labor production efficiency in the tire production process; the mixing process adopts the internal mixing center for mixing, which improves the uniformity of mixing, shortens the mixing time, and improves production efficiency

Method used

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  • Preparation method of high-heat-conductivity type tire vulcanization capsule

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preparation example Construction

[0033] [S-X-1] Embodiment 1, a preparation method of a high thermal conductivity tire curing bladder, adopts the following process steps:

[0034] The first step, batching, weighs various raw materials with an electronic scale, selects 95 parts of butyl rubber, 5 parts of neoprene rubber, 14 parts of N375 carbon black, 32 parts of acetylene carbon black, 5.5 parts of graphene, and 8.2 parts of alkane oil 1.2 parts of stearic acid, 5 parts of zinc oxide, 8 parts of resin;

[0035] Step 2, one-stage mixing, using the internal mixing center for mixing, the feeding order is butyl rubber, neoprene → stearic acid → graphene → 1 / 2N375 carbon black, 1 / 2 acetylene carbon black → 1 / 2N375 carbon Black, 1 / 2 acetylene carbon black → alkane oil → debinding, the debinding temperature is controlled between 140-150°C, the pressure is 4.5-6Pa, the speed is 35-50 rpm, and the time is 240 seconds. The rubber is pounded on the rubber mixing machine to dissipate heat, and the lower piece of rubber i...

Embodiment 2

[0042] [S-X-2] Embodiment 2 A method for preparing a high thermal conductivity tire curing bladder, using the following process steps:

[0043] Step 1, ingredients, weigh various raw materials with electronic scales, select 98 parts of butyl rubber, 4 parts of neoprene rubber, 16 parts of N375 carbon black, 35 parts of acetylene carbon black, 9 parts of graphene, and 8 parts of alkane oil 1.5 parts of stearic acid, 6 parts of zinc oxide, 9 parts of resin;

[0044] Step 2, one-stage mixing, using the internal mixing center for mixing, the feeding sequence is butyl rubber, neoprene → stearic acid → graphene → 1 / 2 carbon black (N375 carbon black, acetylene carbon black) → 1 / 2 2 Carbon black (N375 carbon black, acetylene carbon black) → alkane oil → debinding, the debinding temperature is controlled between 140-150°C, the pressure is 4.5-6Pa, the speed is 35-50 rpm, and the time is 240 seconds. After mixing The obtained mixed rubber is dissipated on the rubber mixer, and then the...

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Abstract

The invention discloses a preparation method of a high-heat-conductivity type tire vulcanization capsule. The preparation method of the high-heat-conductivity type tire vulcanization capsule belongs to the technical field of tires, and comprises the following steps of (1) compounding the components according to the matching ratio: 95 parts of butyl rubber, 4 to 5 parts of chloroprene rubber, 15 to20 parts of N375 carbon black, 35 to 45 parts of acetylene black, 7 to 15 parts of graphene, 7 to 10 parts of alkane oil, 0.5 to 1.5 parts of stearic acid, 5 to 7 parts of zinc oxide, and 8 to 10 parts of resin; (2) primarily mixing; (3) filtering rubber; (4) secondarily mixing; (5) forming; (6) vulcanizing; (7) polishing; and (8) inspecting a finished product. According to the preparation methodof the high-heat-conductivity type tire vulcanization capsule provided by the invention, on the basis of ensuring the stability of various physical and mechanical properties, a heat conductivity coefficient is further improved, so that the aims of saving energy and reducing cost are achieved.

Description

Technical field: [0001] The invention discloses a preparation method of a high thermal conductivity type tire curing bladder, which belongs to the technical field of tire manufacturing. Background technique: [0002] With the rapid development of tire production technology, the quality of tires is getting higher and higher, and the products of various tire companies tend to be homogeneous. The competition among tire manufacturers has gradually narrowed the gap in product quality, saving energy, reducing production costs, and improving production efficiency. Labor productivity has also become a strong competitiveness among tire manufacturers. Tire curing bladder is an indispensable tool in the tire production process. Improving its thermal conductivity plays a vital role in improving the production efficiency of tire manufacturers and saving energy. [0003] The function of the tire vulcanizing bladder is to fill the interior of the raw tire with compressed air, nitrogen, su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29B7/00B29C35/02B29C47/92B29C47/68C08L23/22C08L11/00C08K13/02C08K3/04C08K5/09C08K3/22B29L30/00B29C48/92
CPCB29B7/005B29B7/007B29C35/02B29C48/69B29C48/92B29C2948/9259B29C2948/92704B29C2948/92885B29L2030/00C08K2003/2296C08K2201/014C08L23/22C08L2205/035C08L11/00C08K13/02C08K3/04C08K5/09C08K3/22
Inventor 赵会岩范屏赵海林张学永
Owner YONGYI RUBBER CO LTD
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