In cell culture, a core field of life sciences, pipettes are not only a routine tool for daily experiments, but also the cornerstone of scientific research accuracy and efficiency. In countless liquid transfers, the surface quality of the main part of the pipette plays a crucial role in the accuracy and reliability of experimental results.

The surface quality of the main part of the pipette is directly related to the efficiency and accuracy of liquid transfer. A smooth surface can not only effectively reduce the adhesion of liquids, but also significantly improve the smoothness and accuracy of pipetting. The secret behind this lies in the two crucial processes of grinding and polishing.

Grinding is the first step in the surface treatment of the main part of the pipette. Its main purpose is to remove surface defects produced during mechanical processing, such as scratches, burrs, etc. This process usually uses hard abrasives such as emery wheels and silicon carbide abrasives to gradually remove surface unevenness through different particle size grades until the predetermined roughness requirements are reached. Grinding is not only related to surface smoothness, but also directly affects the subsequent polishing effect. Therefore, the selection and execution of the grinding process is crucial, and it requires the operator to have extensive experience and precise control capabilities to ensure that each pipette body can achieve the best grinding effect.

Polishing is a further treatment after grinding, which aims to remove the tiny scratches produced during the grinding process through chemical or physical effects, making the surface extremely smooth. For serological pipettes used in cell culture, the quality of polishing directly determines whether they can exhibit optimal pipetting performance in experiments. There are many polishing processes, including mechanical polishing, electrolytic polishing, chemical polishing, etc. Each process has its unique advantages and applicable scenarios. Mechanical polishing uses fine-grained polishing paste and polishing cloth to remove surface defects through rotating friction; electrolytic polishing uses electrochemical principles to remove surface unevenness through electrolysis in electrolyte; chemical polishing uses chemical reactions to make surface materials Dissolve to achieve the purpose of polishing.

During the polishing process of serological pipettes for cell culture, a combination of polishing processes is often used to achieve optimal surface quality. This requires the craftsman to have an in-depth understanding of the principles, advantages and disadvantages of each polishing method, and to be able to formulate the most appropriate polishing plan based on the material, structure and usage requirements of the pipette.

The smooth surface brought by grinding and polishing has two significant benefits for serological pipettes used in cell culture: one is to reduce the adhesion of liquids, and the other is to improve the fluency and accuracy of pipetting.

When the pipette transfers liquid, if the surface is rough, the liquid will easily adhere to the surface and form droplets or liquid films, which will not only reduce the accuracy of pipetting, but may also introduce contamination. The finely ground and polished pipette surface, due to its extremely smoothness, greatly reduces the adhesion of liquid, allowing liquid to flow more smoothly through the inner cavity of the pipette, reducing droplet residues. Improved efficiency of liquid transfer.

The smooth surface not only reduces liquid adhesion, but also improves pipetting fluidity. In cell culture experiments, precise liquid transfer is crucial. A smooth and precise pipetting process can ensure that the liquid volume transferred each time is consistent, thereby greatly reducing experimental errors and improving the accuracy and reliability of experimental data. In addition, the smooth surface can also reduce wear and tear caused by friction during use of the pipette, extending the service life of the pipette and reducing experimental costs.

To achieve fine surface treatment of the pipette body, process control and quality control are essential. From grinding to polishing, each step requires strict process parameters and quality control standards.

Process control includes strict screening of abrasives, polishing paste, electrolyte and other materials used in the grinding and polishing process, as well as precise control of grinding and polishing time and pressure. Small changes in these parameters can have a significant impact on the final surface quality. Therefore, technologists need to formulate the optimal process plan based on the material and structural design of the pipette, as well as the specific requirements for pipetting performance in the experiment, and continuously adjust and optimize it in actual production.

Quality control runs throughout the entire surface treatment process. From raw materials entering the factory to finished products leaving the factory, every process requires strict quality inspection. For the main part of the pipette, this includes measurement of surface roughness, testing of liquid adhesion, verification of pipetting accuracy, etc. Only through these strict quality control measures can we ensure that each pipette can meet the expected performance standards and meet the needs of cell culture experiments.

Surface treatment of the body of a serological pipette for cell culture is both a science and an art. It requires craftsmen to not only have a profound theoretical foundation and rich practical experience, but also have the ultimate pursuit of details and strict control of quality. Through fine processing processes such as grinding and polishing, the surface of the pipette has achieved extremely smoothness, thereby achieving the dual benefits of reducing liquid adhesion and improving pipetting fluency and accuracy. This not only provides reliable tool support for cell culture experiments, but also provides scientific researchers with more accurate and efficient experimental methods. In future cell culture research, with the advancement of science and technology and the continuous improvement of experimental needs, pipette surface treatment processes and technologies will also continue to innovate and develop, contributing more wisdom and power to scientific research.