Page 56 - 《橡塑技术与装备》英文版2026年3期

HINA R&P TECHNOLOGY AND EQUIPMENT

in a high-temperature environment. mainly involves the transfer of heat energy to the tire blank
In summary, if there is a technology that can replace through the central mechanism of the curing press (see Figure 1).
steam to provide qualified temperature transmission for the
curing press, it can reduce the upfront investment in tire
manufacturing projects, ease equipment maintenance, and
improve the uniformity of internal and external temperatures,
thereby effectively enhancing the quality of tire products.
Alternative heating methods such as electric heating, oil
heating, and electromagnetic heating have become viable
options to replace steam heating. MESNAC Electromechanical
Engineering Co., Ltd., in response to market demand and the
development of clean energy, has long been paying attention Figure 1 Tire blank vulcanization heating components
to and participating in research and development teams.
Currently, the company has achieved excellent results in the 2.1 Relevant calculations regarding steam
field of electric heating, ranging from theoretical research to heat
During the tire vulcanization process, the external heat
practical applications, and has made a name for itself in the
market. conduction process involves: steam → hot plate cavity (mold
cavity) → upper and lower molds, tread blocks → raw tire
blank; the internal heat conduction process involves: steam →
2 Comparison of theoretical calculation
values and practical values for electric capsule cavity → raw tire blank.
heating and steam heating 2.1.1 Relevant calculations regarding
Although the heating methods have changed from electric external temperature consumption
The external temperature consumption of the curing
heating to steam heating, the structural components used for
press mainly includes the hot plate and the mold sleeve, with
tire vulcanization heating remain unchanged. Therefore, the
loss of thermal energy mainly includes external temperature a simplified expression of the cross-sectional area of the hot
plate and the mold sleeve (See Figure 2 and Figure 3).
loss, which involves the upper and lower hot plates and molds,
and internal temperature loss, which involves the thermal
energy loss of the central mechanism medium.
Electric heating technology involves the direct generation
of heat energy from electric energy through certain forms
of electric heating elements, replacing the traditional steam
heating method for the hot plates of curing presses. This
eliminates auxiliary structures such as steam generation
devices, conveying pipelines, and power sources, thereby
shortening the factory construction period, reducing equipment
investment, and improving heat energy utilization efficiency.
Figure 2 Sectional view of the hot plate
There are two parts of the curing press that require heat energy
for tire curing: external temperature heating and internal
The dimensions of the hot plate mold sleeve of the curing
temperature heating of the tire blank. External temperature
press vary with different specifications and models of the
heating is divided into two parts: ① external temperature curing press. Taking the 51" curing press as an example (see
heating of the mold, including the upper and lower hot plates;
table 1).
② heating of the mold sleeve. Internal temperature heating

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