In modern industrial production, especially in electronics, medical, optical and other fields, precision dispensing technology plays a vital role. As one of the core components of the dispensing equipment, the performance of the dispensing needle directly affects the quality and accuracy of the dispensing. This article will take you in-depth understanding of the relevant knowledge of the dispensing needle.
1. The structure of the dispensing needle
Dispensing needles are usually composed of a needle tube, needle tip and connecting parts. Needle tube is the main channel for storing and transporting glue, generally made of stainless steel, ceramics or plastics and other materials, with good corrosion resistance and chemical stability. The tip is the key part of the dispensing needle, its shape and size determines the glue outflow characteristics and dispensing precision. Common tip shapes include conical, flat, bevelled, etc. Different shapes are suitable for different viscosity and characteristics of the glue. The connecting part is responsible for connecting the needle to the other parts of the dispensing equipment to ensure that the glue can be smoothly transported from the glue storage container to the needle tip.
2. The material of the dispensing needle
The choice of material for dispensing needles is critical to their performance. Stainless steel dispensing needles have high strength and durability, can withstand a certain degree of pressure and wear and tear, suitable for most common types of glue. Ceramic dispensing needles have better resistance to high temperatures and corrosion, and are suitable for dispensing some special glues, such as high-temperature curing adhesives. Plastic dispensing needles are relatively light and low cost, but may not be durable enough for some highly corrosive glues. When choosing the material of the dispensing needle, you need to consider the characteristics of the glue, dispensing requirements and cost and other factors.
3. The specifications of the dispensing needle parameters
The specifications of the dispensing needle parameters mainly include the inner diameter, outer diameter and length. The inner diameter determines the flow of glue and outflow speed, the larger the inner diameter, the larger the flow of glue, suitable for lower viscosity glue; smaller inner diameter of the needle is suitable for high viscosity glue, better control of the amount of glue outflow. The outer diameter affects the strength and range of application of the needle, the larger the outer diameter of the needle is relatively more robust, but may be limited in some narrow space operation. The length needs to be chosen according to the specific dispensing application scenario, longer needles can be used for deep holes or hard to reach parts of the dispensing, while shorter needles are easier to operate and control.
4. The application of the dispensing needle scene
Dispensing needles have a wide range of applications in many industries. In the electronics manufacturing industry, it is used in the assembly of circuit boards, such as chip encapsulation, component fixing, etc. It can accurately dispense the glue in the specified position to ensure the reliable connection and fixation of electronic components. In medical equipment manufacturing, dispensing needles are used in the sealing and bonding of medical devices and other processes, and their high precision and reliability are critical to the quality and safety of medical devices. In addition, in the optical instruments, precision machinery and other fields, dispensing needles also play an indispensable role for the manufacture of a variety of precision products to provide strong support.
In short, although small, dispensing needles play an important role in modern industrial production. Understanding of the relevant knowledge of the dispensing needle, help us to better choose and use this tool, improve the quality of dispensing and production efficiency, promote the technological development of various industries and product quality enhancement.
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