Page 97 - 《橡塑技术与装备》英文版2026年1月

PRODUCT AND DESIGN

on the upper support plate with screws 10. The upper support traditional tire curing presses are usually connected by threads,
plate, upper heating plate, and upper heat insulation plate all and both are perforated with rows of holes to accommodate
have multiple installation holes designed to accommodate mold installation of different specifications. However,
different mold specifications. Screws 2 pass through these three this structure has certain limitations in the application of
components to fix the mold. The lower heating plate and the electromagnetic heating technology. Since both the upper
lower heat insulation plate are directly fixed to the base unit heating plate and upper support plate are perforated with rows
panel with screws 11. High-temperature steam is introduced of holes, it affects the arrangement and heat dissipation of the
into the upper and lower heating plates to transfer heat from heating coils. The heating coils need to be arranged relatively
the plates themselves to the upper and lower parts of the mold. uniformly to achieve even heating effects, but the presence of
The mold cavity is directly filled with high-temperature steam, the rows of holes disrupts the arrangement and heat dissipation
eliminating the need for other heat transfer components. of the heating coils, leading to uneven heating and increased
The principle of steam heating is to utilize the high- energy consumption.
temperature thermal energy of steam to transfer heat to the tire Traditionally, there is a significant gap between the
mold and tire through the upper and lower heat plates as well insulation cover and the mold. When replacing the mold,
as the mold sleeve. This heating method has advantages such as there is no need to disassemble or assemble the insulation
uniform heating and stable temperature control. However, it also cover, and the distance between the insulation cover and the
has issues such as high energy consumption, slow heating speed, mold varies depending on the mold's specifications. However,
and high maintenance costs. In addition, the steam heating method electromagnetic heating requires strict control of the distance
requires the installation of a steam boiler and piping system, which between the heating coil and the mold to ensure effective
increases the complexity and cost of the equipment. heating and the effectiveness of the heating range.
2.2 Exploration of the basic principles of Therefore, traditional structures need to be redesigned
electromagnetic heating technology and optimized for the application of electromagnetic heating
Electromagnetic heating technology is a kind of efficient technology, and some components need to be replaced for the
heating method that utilizes the principle of electromagnetic modification of electromagnetic heating technology.
induction to convert electrical energy into thermal energy.
When an alternating current passes through a coil, an alternating 3 Design of external electromagnetic
magnetic field is generated around it. When a magnetic conductor heating renovation scheme for all-steel
is placed in this magnetic field, eddy currents are generated inside mechanical tire curing press
it. As the eddy currents flow through the magnetic conductor, they 3.1 Design of electromagnetic heating
overcome the resistance of the conductor and generate heat, thus installation scheme for upper hot plate
achieving the purpose of heating. To address the limitations of traditional structures
Electromagnetic heating technology boasts notable in the application of electromagnetic heating technology,
advantages such as rapid heating, high thermal efficiency, our company has specifically developed a new installation
and precise temperature control. Since electromagnetic scheme for the electromagnetic heating upper hot plate.
heating directly heats conductive materials, it offers high This scheme eliminates the need to process row holes for
heating efficiency and low energy consumption. Furthermore, different specifications of mold installation on the heating
electromagnetic heating technology enables precise coil plate, ensuring uniform arrangement of the heating
temperature control and remote monitoring, further enhancing coils and guaranteeing the heating effect. Additionally, it
production efficiency and safety. can also accommodate the installation of molds of different
2.3 Limitations of Traditional Structures in specifications. The specific design idea is as follows:
Electromagnetic Heating Applications (1) Firstly, according to the size and heating requirements
The upper heating plate and upper support plate of of the curing press, design appropriate coil plate shapes and

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