Manufacturing method of epoxy resin model for light elasticity test
A technology of epoxy resin and production method, which is applied in the field of qualitative photoelasticity test and epoxy resin model making, which can solve the problems such as difficulty in adapting to aeroengine, low degree of automation, low optical sensitivity, etc., and achieve small internal initial stress and automatic The effect of high degree and good optical sensitivity
Inactive Publication Date: 2017-01-04
CHINA AVIATION POWER MACHINE INST
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Problems solved by technology
[0004] The invention provides a method for making an epoxy resin model for a photoelasticity test, to solve the problem that the traditional method for making an epoxy resin model based on pouring technology has a long production period, the production process is harmful to the human body, and the degree of automation is low; Among the model making technologies related to the test field, the main disadvantage of laser rapid prototyping technology directly forming photosensitive resin models is low optical sensitivity, and secondly, there is a certain initial stress, which is difficult to meet the technical problems of aero-engine development.
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[0020] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in various ways defined and covered below.
[0021] figure 1 It is a block flow diagram of the epoxy resin model making method for photoelasticity test in the preferred embodiment of the present invention. like figure 1 As shown, the epoxy resin model making method for the photoelasticity test of the present embodiment comprises the following steps: a, adopting photocuring three-dimensional forming photosensitive resin model positive mold; b, adopting full vacuum pouring on the photosensitive resin model positive mold Technology pouring silicone rubber negative mold; c, taking out the photosensitive resin model positive mold to obtain the formed silicone rubber negative mold; d, sealing the silicone rubber negative mold; e, casting the ring through the vacuum casting process of the photoelastic model in the...
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The invention discloses a manufacturing method of an epoxy resin model for light elasticity test, comprising the following steps: a. apply light curing to three-dimensionally mold a male mold of photosensitive resin mold; b, pour a silicon rubber female mold on the photosensitive resin mold by a full vacuum pouring technology; c, take out the male mold of the photosensitive resin mold and obtain the molded female mold of silicon rubber; d, seal the female mold of silicon rubber; e, pour the epoxy resin model in the female mold of silicon rubber through the vacuum pouring technique of a light elasticity model; f, perform post-treatment on the epoxy resin model and obtain the molded epoxy resin model. The manufacturing method of the epoxy resin model for light elasticity test is high in degree of automation, short in manufacturing cycle, environment-friendly, and small in initial stress of inner part; the manufacturing method is applicable to the qualitative elasticity test of a core engine and a technology demonstration engine of aero-engine.
Description
technical field [0001] The invention relates to the technical field of model testing of aero-engine parts, in particular to an epoxy resin model making method for qualitative photoelasticity tests of aero-engine core machines or technical verification machines. Background technique [0002] As the countries with advanced aviation technology in the world are looking for low-risk technical ideas and technical approaches that can save development costs and shorten the development cycle, the traditional photoelastic test technology cannot fully meet the needs of aero-engine development without timely innovation. The photoelasticity test is a model test, which requires the use of an epoxy resin model with good optical and mechanical properties. The traditional method of making an epoxy resin model based on casting technology includes: machining a wooden mold male mold, casting a silicone rubber female mold, taking out the male mold Dies, sealed female molds, poured epoxy resin mo...
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IPC IPC(8): B29C33/40B29C39/02B29C39/26
CPCB29C33/40B29C33/3842B29C39/02B29C39/26
Inventor 郭天才高俊徐友良曾高黄薇
Owner CHINA AVIATION POWER MACHINE INST