Metallographic embedding machine, also known as metallographic specimen embedding machine, is suitable for pressing thermosetting plastics on small metallographic specimens that are not shaped or easy to obtain. In the preparation process of metallographic analysis samples, the direction adjustment of the observation surface before grinding and polishing is generally fixed by embedding resin to fix the direction of the sample. At the same time, embedding can make irregular samples into a shape that is convenient to hold, thus facilitating the control of the grinding and polishing process.

Metallographic inlay usually refers to the process of wrapping a metal sample with thermosetting resin, cooling and forming it under certain temperature and pressure, also known as hot inlay. This type of equipment for heating and forming is called a metallographic inlay machine or metallographic hot inlay prototype.

According to the degree of automation, metallographic hot inlay machines can be divided into manual simple type and automatic high-efficiency type. The manual simple embedding process is achieved through electric heating, manual pressurization, and natural air cooling. Its structure is simple and easy to operate, but its efficiency is low; The automatic and efficient embedding process is fully controlled, with functions such as intelligent temperature control and heating, dynamic pressure or hydraulic control and pressurization, and intelligent water-saving cooling control. The sample preparation efficiency is high and the quality is good.

The manual inlaying machine belongs to the mechanical inlaying machine, which rotates the external handwheel of the machine body and drives the internal screw of the machine body through a pair of umbrella gears to move the lower mold of the pressed sample up and down in the rigid mold sleeve. The thermosetting plastic and the inlaying sample are formed under heating conditions. The forming pressure during the sample preparation process is automatically compensated by a spring fixed inside the body, and the pressure of the sample compression can be indicated by a signal light. However, there are many manual operation steps, which are suitable for small and medium-sized laboratories with small sample sizes.

With the wider application of metallographic analysis methods, especially the requirement for improving efficiency and ensuring sample quality in metallographic sample preparation through online quality control in factories, fully automatic hot embedding machines have emerged. It utilizes mature modern liquid supply control technology to optimize and automatically control the steps in the hot embedding process, thereby achieving maximum sample preparation efficiency while ensuring embedding quality.