Precision electroforming system and control method

Abstract

The invention discloses a precision electroforming system and a control method. The precision electroforming system comprises an electroforming liquid temperature control module, a water bath water level control module, an electroforming liquid pH value control module, an electroforming tank liquid level control module and a control system. A modular automatic control method is mainly adopted, corresponding parameters are accurately controlled by designing different modules, and the problems that an electroforming device is low in automation level and poor in parameter control accuracy are solved; meanwhile, through a coordination method among different modules, the problems that the temperature of electroforming liquid is not uniformly heated and the control precision is poor are finallysolved; and the problem that the pH value control precision of the electroforming liquid is poor is solved. Mutual influence between control parameters is considered, closed-loop automatic control isformed, the control precision of technological parameters of precision electroforming equipment and the stability of the equipment can be effectively improved, the forming quality of a workpiece can be improved, the automation level of the electroforming equipment can be improved, manual detection and operation links are omitted, the labor cost is effectively reduced, and workpiece machining is simpler and more convenient.

Description

technical field [0001] The invention belongs to the technical field of electrodeposition, and in particular relates to a precision electroforming system and a control method. Background technique [0002] With the vigorous development of micro-nano materials and technologies, micro-nano parts and electromechanical systems have been widely used in aviation, aerospace, biochemical analysis, environmental monitoring, flexible electronics and many other fields, ranging from high-end devices such as 7nm process computer chips to Daily necessities such as tiny gears in mechanical watches. Precision micro-electroforming technology has incomparable advantages in the molding of microstructure parts by virtue of its advantages of high replication accuracy, low production cost, and wide applicability. [0003] The precision electroforming system of the microstructure mold core is the guarantee for the realization of precision micro electroforming technology. According to the requireme...

AI Technical Summary

Problems solved by technology

When heating directly, a heater is arranged in the electroforming liquid, and the temperature of the electroforming liquid near the heater is high, which affects the composition of the electroforming liquid and the stability of the part forming; at the same time, a temperature gradient will also be generated, which affects the stability of the part forming Uniformity

Water bath heating is to arrange heaters in the water bath to indirectly heat the electroforming liquid, which can solve the problem of high local temperature of the electroforming liquid to a certain extent and improve the stability of the electroforming liquid and the electroforming process, but it cannot solve the problem of the temperature of the electroforming liquid. The problem of uneven distribution

The pH value control method of the electroforming solution is usually to manually detect the pH value of the electroforming solution at regular intervals, and add boric acid as a buffer agent according to the test results, which cannot monitor the pH value change process in real time to ensure that the pH value is always kept within the working range, which affects the molding quality of the parts ; At the same time, there may be a problem of exceeding the pH value caused by adding too much buffer at one time

Electroforming liquid is more volatile in a heating environment, and its composition is easy to change. Distilled water needs to be added to ensure the stability of electroforming; and regular water replenishment is usually used to ensure the stability of electroforming liquid composition, but it is impossible to monitor the electroforming liquid in real time Level, to ensure that the liquid level is always within the working range; at the same time, directly adding water is likely to reduce the temperature of the electroforming solution and increase the pH value of the electroforming solution, which exceeds the specified range and affects the molding quality

[0005] Key process parameters such as electroforming liquid temperature, pH value, and liquid level directly determine the molding quality of electroforming parts, and the existing control methods are mostly individual control of parameters, non-closed-loop control or manual control; at the same time, the relationship between parameters is not considered. The mutual influence of each other has been unable to meet the requirements of precision electroforming

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