Frame plate type mold for thermal stretch bending of profile
A frame plate and profile technology, which is applied in the field of thermal processing, can solve the problems of poor thermal insulation performance, high processing cost, and poor thermal insulation effect, and achieve the effects of reducing mold materials, processing costs, and heat loss
Inactive Publication Date: 2020-02-14
BEIHANG UNIV
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Problems solved by technology
[0004] In order to solve the problems of high processing cost and poor thermal insulation performance of existing large-sized metal molds, it is necessary to develop special forming molds for titanium alloy curvature components with complex and special-shaped cross-section shapes, resulting in high mold costs. In addition, for large-sized profile parts , the traditional solid metal mold has the problems of poor thermal insulation effect, bulky structure, and many processing materials required. The present invention proposes a frame plate mold for hot stretch bending of profiles to meet the low-cost manufacturing requirements of profile curvature components
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[0021] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0022] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described here. Therefore, the protection scope of the present invention is not limited by the specific details disclosed below. EXAMPLE LIMITATIONS.
[0023] In order to solve the insulation and heat insulation of the mould, the non-metallic material of heat insulation can be directly used to make the mold, and a low-cost metal mold can also be used ...
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The invention discloses a frame plate type mold for thermal stretch bending of a profile. The frame plate type mold for thermal stretch bending of the profile comprises a supporting base, a reinforcing plate, a frame plate, a supporting mold surface, a heat insulation and electric insulation layer and a positioning bolt. According to the technical scheme, compared with a solid mold, the mold material is greatly reduced, and the machining cost is reduced; the thermal conductivity is low, and the heat loss of the profile in the thermal stretch bending process is reduced; the heat insulation andelectric insulation cushion layer is additionally arranged on the supporting mold surface where the profile is attached, so that the self-resistance heating efficiency of the profile is improved, theheating time of the profile is reduced, meanwhile, the heat preservation time is prolonged, and then the frame plate type mold can meet the thermal stretch bending forming requirement of a titanium profile curvature member.
Description
technical field [0001] The invention belongs to the technical field of thermal processing, and in particular relates to a frame-plate mold for thermal drawing and bending of profiles, which is used for thermal forming of curvature components of titanium alloy profiles. Background technique [0002] In order to reduce weight and improve economy, the new generation of large aircraft uses a large number of carbon fiber composite skins. The strength, stiffness, and thermal characteristics of titanium alloy and carbon fiber composite material are well matched, and the potentials of the two are close, which is not easy to cause galvanic corrosion. Moreover, titanium alloy itself has a series of excellent characteristics such as high specific strength, good corrosion resistance, and high temperature resistance. Therefore, the load-bearing skeleton connected with the composite skin mostly adopts titanium alloy curvature components, and the hot stretch bending creep forming process i...
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Login to View More IPC IPC(8): B21D37/10B21D7/00B21D7/16B21D37/14
CPCB21D7/00B21D7/16B21D37/10B21D37/14
Inventor 李小强张晨李东升
Owner BEIHANG UNIV