CN-122008456-A - Radiation heating autoclave device

CN122008456ACN 122008456 ACN122008456 ACN 122008456ACN-122008456-A

Abstract

The invention discloses a radiation heating autoclave device which comprises a tank body, a transparent mold, a trolley, a radiation heating module, a temperature measuring module and a temperature feedback adjusting module, wherein a curing bin is formed in the middle of the inner side of the tank body, the transparent mold is made of transparent materials and is used for bearing prepreg to be cured and formed, the transparent mold has transmissivity for radiation energy, the radiation energy can penetrate through the transparent mold and irradiate the surface of the prepreg, the trolley is arranged in the curing bin and is used for bearing the transparent mold, the radiation heating module is used for radiating and outputting energy into the curing bin to heat and cure the prepreg, the temperature measuring module is used for acquiring temperature information near the prepreg when the prepreg is heated and cured, and the temperature feedback adjusting module is used for adjusting the output power of the radiation heating module based on the temperature information near the prepreg. According to the invention, through the cooperation of radiation heating and the transparent mold, the prepreg heating and curing efficiency is improved, and the temperature control effect is improved, so that the production efficiency of the autoclave molding process is improved.

Inventors

YE HONG
SHEN MINGYUE
YAO HONGXIN
LIU YAN

Assignees

黄山鼎瑞新实业有限公司
中国科学技术大学

Dates

Publication Date: 20260512
Application Date: 20260122

Claims (8)

1. A radiant heating autoclave apparatus, comprising: the curing bin is arranged in the middle of the inner side of the tank body, and a tank door is arranged on one side of the tank body, which is positioned on the curing bin; A transparent mold made of a transparent material and used for carrying a prepreg to be cured and molded, and the transparent mold has transmissivity to radiation energy so that the radiation energy can pass through the transparent mold and irradiate to the surface of the prepreg; The trolley is arranged in the curing bin and used for bearing the transparent mold, the trolley is provided with a grid bearing surface, and the aperture area ratio of the grid bearing surface is more than 90%; The radiation heating module is circularly arranged along the inner wall of the curing bin and is used for radiating and outputting energy into the curing bin so as to heat and cure the prepreg; the temperature measurement module is connected with the thermocouples and used for acquiring temperature information near the prepreg during heating and curing of the prepreg; And the signal input end and the signal output end of the temperature feedback adjusting module are respectively connected with the signal output end of the temperature measuring module and the signal input end of the radiation heating module, and the temperature feedback adjusting module is used for adjusting the output power of the radiation heating module based on the temperature information near the prepreg.
2. The apparatus of claim 1, wherein the curing chamber has a reflective layer disposed on an inner wall thereof for reflecting radiant energy to focus the energy onto a surface of the prepreg to be heated and cured.
3. The apparatus of claim 1, wherein the radiant heating module comprises a quartz lamp radiant array formed by a plurality of groups of quartz lamps uniformly arranged along the inner wall of the curing chamber.
4. The radiant heating autoclave device of claim 1, wherein the temperature feedback adjustment module adjusts the output power of the radiant heating module using a PID control algorithm, the PID control algorithm adjusting formula being: ; Wherein, the For the output of the nth control period, 、、 Respectively proportional coefficient, integral coefficient and differential coefficient, The temperature error value of the nth control period is the set temperature minus the current temperature.
5. A radiant heating autoclave apparatus as claimed in claim 1, wherein said transparent mold is made of polyetherimide PEI material having a lower heat capacity and a higher light transmittance.
6. The radiant heating autoclave device of claim 1, wherein a slide rail is arranged at the bottom of the inner side of the curing bin in the direction from the tank door to the curing bin, the trolley is arranged on the slide rail, and the trolley can move along the slide rail.
7. The radiant heating autoclave device of claim 1, wherein a centrifugal fan is arranged at one side of the interior of the autoclave body far away from the autoclave door, an air duct is arranged between the inner wall of the curing bin and the autoclave body, an air duct inlet is arranged at one side close to the centrifugal fan, an air duct outlet is arranged at one side close to the autoclave door, and a barrier is arranged between the curing bin and the centrifugal fan.
8. A radiant heating autoclave apparatus as claimed in claim 2, wherein the reflective layer is an aluminum high reflectivity coating.

Description

Radiation heating autoclave device Technical Field The invention relates to the technical field of autoclave, in particular to a radiation heating autoclave device. Background The autoclave molding process can generate uniform thermal field and pressure field, can manufacture high-performance carbon fiber composite material components with complex structures, and is a top-level manufacturing process for manufacturing high-end composite material components, in particular to key components in the aerospace field. The structure of the autoclave is shown in fig. 5, a fan is used to drive the gas in the autoclave body to flow, and the gas is heated by the electric heating wire and then performs convection heat exchange with the mold and the prepreg. Because the metal mold and the can body have large heat capacity, the temperature rising speed of the gas in the can body is very low, the convection heat exchange efficiency is relatively low, and a prepreg heating curing period usually needs several hours. Waiting for the massive metal mold to cool after solidification also takes a long time, which causes the production efficiency of the autoclave molding process to be low. Disclosure of Invention The present invention aims to solve at least one of the technical problems in the related art to some extent. Therefore, an object of the present invention is to provide a radiation heating autoclave device, which is beneficial to improving the heating and curing efficiency of prepregs and improving the temperature control effect by matching radiation heating with a transparent mold, thereby improving the production efficiency of an autoclave molding process. According to the invention, a radiation heating autoclave device comprises: the curing bin is arranged in the middle of the inner side of the tank body, and a tank door is arranged on one side of the tank body, which is positioned on the curing bin; A transparent mold made of a transparent material and used for carrying a prepreg to be cured and molded, and the transparent mold has transmissivity to radiation energy so that the radiation energy can pass through the transparent mold and irradiate to the surface of the prepreg; The trolley is arranged in the curing bin and used for bearing the transparent mold, the trolley is provided with a grid bearing surface, and the aperture area ratio of the grid bearing surface is more than 90%; The radiation heating module is circularly arranged along the inner wall of the curing bin and is used for radiating and outputting energy into the curing bin so as to heat and cure the prepreg; the temperature measurement module is connected with the thermocouples and used for acquiring temperature information near the prepreg during heating and curing of the prepreg; And the signal input end and the signal output end of the temperature feedback adjusting module are respectively connected with the signal output end of the temperature measuring module and the signal input end of the radiation heating module, and the temperature feedback adjusting module is used for adjusting the output power of the radiation heating module based on the temperature information near the prepreg. Preferably, the inner wall of the curing bin is provided with a reflecting layer, and the reflecting layer is used for reflecting radiant energy to enable the energy to be focused on the surface of the prepreg to be heated, cured and formed. Preferably, the radiation heating module comprises a quartz lamp radiation array formed by uniformly arranging a plurality of groups of quartz lamps along the inner wall of the curing bin. Preferably, the temperature feedback adjustment module adjusts the output power of the radiant heating module by adopting a PID control algorithm, and the PID control algorithm adjusts the formula: ; Wherein, the For the output of the nth control period,、、Respectively proportional coefficient, integral coefficient and differential coefficient,The temperature error value of the nth control period is the set temperature minus the current temperature. Preferably, the transparent mold is made of polyetherimide PEI material having a lower heat capacity and a higher light transmittance. Preferably, a sliding rail is arranged at the bottom of the inner side of the curing bin from the tank door to the curing bin, the trolley is arranged on the sliding rail, and the trolley can move along the sliding rail. Preferably, a centrifugal fan is arranged at one side of the tank body, which is far away from the tank door, an air duct is arranged between the inner wall of the curing bin and the tank body, an air duct inlet is arranged at one side, which is close to the centrifugal fan, an air duct outlet is arranged at one side, which is close to the tank door, and a barrier is arranged between the curing bin and the centrifugal fan. Preferably, the reflective layer is an aluminum high reflectivity coating. The beneficial effects of the invention are as follo