Metallographical sample electrolytic polishing device applied to laboratory

Abstract

The invention discloses a metallographic sample electrolytic polishing device applied to a laboratory, comprising a working voltage and current density regulating system, an electrolyte constant temperature system, an electrolytic time automatic control and automatic alarm system, an electrolytic bath, two supports and a crossbeam, wherein, the working voltage and current density regulating system is formed by a DC voltage-stabilized source and a mobile electrode which are connected in series; the electrolyte constant temperature system is formed by a temperature control device, a heating element, a shell, a heating groove and a thermocouple; the electrolytic time automatic control and automatic alarm system is formed by a time relay and a buzzer; the electrolytic bath is formed by an electrolytic bath frame, an anode electrode and a cathode electrode. The working voltage and current density of the invention can be controlled independently, and the device has good polishing effect and high speed.

Description

technical field [0001] The invention relates to an electrolytic polishing device for metallographic samples used in laboratories, and belongs to the technical field of electrolytic polishing devices. Background technique [0002] Observation of metallographic structure is an important part of material research, the preparation of high-quality metallographic samples is its prerequisite, and polishing treatment is a necessary part of sample preparation. At present, the polishing methods include mechanical polishing, chemical polishing and electrochemical polishing. The polishing effect of mechanical polishing is poor, and it takes a lot of manpower and time, and the polishing quality is unstable, especially for soft metal materials, such as aluminum and aluminum alloys, copper and copper alloys, as well as titanium alloys and magnesium alloys Wait. Mechanical polishing is to obtain a smooth surface by cutting or plastically deforming the surface of the material to remove the...

AI Technical Summary

Problems solved by technology

However, the temperature and time cannot be well controlled during chemical polishing, which often affects the polishing quality

The polishing quality of electrochemical polishing is good, and it has a very good polishing effect on non-ferrous alloys, which is unmatched by mechanical polishing and chemical polishing. However, the electrochemical polishing devices on the market are all industrial, expensive equipment, and current and voltage Can not be adjusted independently, electrolyte temperature and polishing time can not be automatically controlled, not suitable for the preparation of metallographic samples for scientific research in schools

Images