Detailed explanation of the process requirements for dispensing consumables

　　The process requirements for dispensing consumables are crucial for ensuring the normal operation of dispensing equipment and dispensing quality. The following are the process requirements for dispensing consumables, expressed and summarized in points:

　　1、 Process requirements for dispensing needles

　　Material selection: Common materials for dispensing needles include stainless steel, plastic, and ceramics. Stainless steel needles are widely used due to their excellent corrosion resistance and mechanical strength. Plastic and ceramic needles are selected according to specific needs, such as high temperature resistance, corrosion resistance, etc.

　　Size and shape: The size and shape of the dispensing needle need to be selected according to different application scenarios. Generally speaking, the inner diameter of the needle is at least five times the size of the solder particles to avoid blockage issues. Meanwhile, the length, diameter, and sharp angle of the needle also need to be adjusted according to specific process requirements.

　　Cleanliness: The dispensing needle needs to be kept clean before use to avoid impurities and pollutants affecting the dispensing quality.

　　2、 Process requirements for rubber hoses

　　Material selection: Common materials for rubber hoses include polyester and silicone rubber. It is necessary to select appropriate materials based on the characteristics and application scenarios of the adhesive to ensure smooth transportation of the adhesive.

　　Diameter and length: The diameter and length of the rubber hose need to be selected according to the specific requirements of the dispensing equipment. A hose that is too thin or too short may cause poor glue delivery, affecting dispensing efficiency and quality.

　　Pressure resistance and corrosion resistance: Rubber hoses need to have good pressure resistance and corrosion resistance to cope with the challenges of different adhesives and working environments.

　　3、 Process requirements for glue

　　Glue type selection: Select the appropriate glue type based on specific application scenarios and needs, such as epoxy glue, silicone, UV glue, etc.

　　Viscosity control: The viscosity of glue has a significant impact on the quality of dispensing. It is necessary to fully reheat the glue before use and adjust the viscosity of the glue according to the process requirements to ensure the uniformity and stability of dispensing.

　　Impurities and Bubble Control: Impurities and bubbles in the glue may cause uneven dispensing or create voids. Therefore, it is necessary to thoroughly stir and filter the glue before use to remove impurities and bubbles.

　　4、 Preparation before dispensing

　　Material preparation: Ensure sufficient preparation of materials such as glue, substrate, tooling, or templates, and thoroughly mix and clean them according to requirements.

　　Equipment selection and calibration: Select appropriate dispensing equipment based on the characteristics and purpose of the glue, and calibrate the equipment, including the installation of dispensing needle barrels and needles, selection of diameters, adjustment of dispensing pressure and speed, etc.

　　In summary, the process requirements for dispensing consumables cover aspects such as needles, hoses, and glue, requiring comprehensive consideration of factors such as material, size, shape, cleanliness, viscosity, impurities, and bubble control. Meanwhile, the preparation work before dispensing is also an important step in ensuring the quality of dispensing.