Metal structure forming deformation parameter precision control device and method

Abstract

The invention discloses a metal structure forming deformation parameter precision control device and method. The control device comprises a mechanical loading module, a compression module, a vacuum module, a heating module, a ventilation module, a moving module and a control system. The mechanical loading module is adopted, and the loading parameters can be accurately controlled through a servo motor, a speed reducer and a ball screw. Compared with a hydraulic device, a hydraulic pump station and an oil valve arranged on the hydraulic loading module can be omitted, the device is simple, and the cost is low. According to the invention, the maximum size of 40 * 40 * 40 mm, the loading pressure of 20 t and the loading speed of 0-20 mm / s can be realized by selecting a proper mechanical loading module. The requirements of the metal structure forming process can be met. In other words, under the vacuum condition, heating is conducted to the specified temperature, heat preservation is conducted, then a building sample is loaded at constant pressure and constant speed, and therefore precise control over the deformation amount, the deformation speed and the deformation temperature of metal structure forming is achieved.

Description

technical field [0001] The present invention relates to welding equipment and its technical field, in particular to a device and method for precise control of deformation parameters of metal structures. Background technique [0002] As the core components of major projects, large forgings are often served under extreme conditions such as high temperature, high pressure, irradiation, corrosion, reciprocating motion, etc., which have extremely high requirements on the performance of materials, especially the homogeneity. my country's large forgings have long relied on imports, but even imported forgings sometimes suffer from homogenization problems. The internal metallurgical quality of the base material and large ingot of large forgings is often extremely difficult to guarantee, the solidification process is difficult to control, macro segregation, cracks, center porosity and coarse grains are serious, resulting in a very low pass rate of large forgings, which greatly increas...

AI Technical Summary

Problems solved by technology

Although the system is similar to the construction equipment, for the loading process of the construction metal, the deformation amount, deformation speed, and loading pressure need to be precisely controlled, and the system is also difficult to meet the test requirements

[0007] To sum up, currently there are few equipments on the market that meet the requirements of construction tests, and there are almost no equipment specially designed for construction forming tests.

Moreover, the metal structure forming mechanism of a small number of materials has been explained, but the metal structure forming mechanism of most materials has yet to be resolved.

Images