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Freezing process for photosensitive resin model

A photosensitive resin and model technology, which is applied in the direction of manufacturing tools, additive processing, metal processing equipment, etc., can solve the problems of high freezing temperature, large deformation of photosensitive resin models, and affecting test accuracy, etc., to achieve small applied load and short test cycle , the effect of low freezing temperature

Active Publication Date: 2017-11-03
AECC HUNAN AVIATION POWERPLANT RES INST
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Problems solved by technology

[0004] A main purpose of the present invention is to overcome at least one defect of the above-mentioned prior art, and provide a photosensitive resin model freezing process to solve the high freezing temperature and the tolerance of the model when a large load is applied in the prior art. Together, the large deformation of the photosensitive resin model under a large load, and the lack of stress stripes under a small load affect the accuracy of the test.

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  • Freezing process for photosensitive resin model
  • Freezing process for photosensitive resin model

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Embodiment Construction

[0014] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed descriptions will be omitted.

[0015] The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided in order to give a thorough understanding of embodiments of the invention. Those skilled in the art will appreciate, however, that the technical solutions of the present invention may be practiced without one or more of the specifi...

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Abstract

The invention discloses a freezing process for a photosensitive resin model. The freezing process includes the following steps that first, freezing pretreatment of the photosensitive resin model is conducted, the photosensitive resin model is put into a model loading device in a freezing mode and loads are applied to the photosensitive resin model; second, the photosensitive resin model is frozen under the following temperature control conditions that the temperature rises to 30 DEG C from an indoor temperature with one hour at first, then the temperature rises to 65 DEG C at the speed of (5-10) DEG C per hour, heat preservation lasts for (1-3) hours according to the size of the photosensitive resin model, and finally the temperature falls to 56 DEG C at the speed of (1-3) DEG C per hour to remove the loads; and third, treatment after freezing of the photosensitive resin model is conducted, the photosensitive resin model is taken out of the model loading device, and the photosensitive resin model is subjected to cutting, polishing and stripe interpretation.

Description

technical field [0001] The invention relates to a model freezing process, in particular to a stress freezing process of a photosensitive resin model directly produced by laser rapid prototyping technology. Background technique [0002] Obtaining the stress distribution of the test piece by photoelasticity test is the main technical means used to evaluate the working stress in the product prototype design, and plays an important role in the strength analysis of product design. The object of the photoelasticity test is the photoelastic model. At present, laser rapid prototyping technology is used to directly shape the photosensitive resin model as the photoelastic model in research at home and abroad. This technology has the characteristics of fast molding and environmental protection. Laser rapid prototyping technology is widely used, but it is rarely used in the field of photoelasticity testing, especially in the field of photoelasticity testing of complex components of aero...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C64/135B33Y10/00
CPCB33Y10/00
Inventor 郭天才黄臻荣徐友良文华杨海
Owner AECC HUNAN AVIATION POWERPLANT RES INST
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