Relationship Between The Diameter Accuracy Of Pre-insulated Casing And The Mold

Recently, pre insulated sleeve manufacturers often receive feedback from customers. The most common problem is that there is an error in the inner diameter of pre insulated junction sleeve. In fact, when most customers purchase silicone sleeves, they hope that the sleeve products can just reach the size they want, so that it is more convenient during use. However, in the actual production process, there is often a small size error between the customer's order requirements and the insulated joint sleeve product. Reasonable errors within the controllable range are allowed to exist, which is what we call tolerance.
There are many factors that affect the tolerance range and accuracy. Many people think that the accuracy of small-diameter products is more difficult to control, and the accuracy of large-diameter products is relatively easy to control. In fact, this is a misunderstanding. The best controllable silicone sleeve diameter range is between φ5-φ100. The accuracy of products with a diameter exceeding φ100 is also difficult to control.
The extruded silicone sleeve is fed, blow molded, and finally formed. During this period, the diameter of the tube will be different due to the change of temperature. This requires the operators of the front and back channels to control the tolerance range at any time. For small tubes with a diameter of less than 5MM, the industry standard is the allowable range of ±0.1MM. If the inner and outer diameters are between 5-10MM, the industry standard is ±0.15MM. Therefore, the larger the size of the silicone sleeve, the greater the tolerance range will be. Another important factor affecting the tolerance is the accuracy of the mold. The higher the accuracy of the mold, the smaller the error range of the tube diameter!
In summary, the tolerance of the silicone sleeve is not only directly related to the production process and the level of the operator, but also closely related to the accuracy of the mold. Therefore, it is particularly important to choose a good silicone sleeve manufacturer. Here, we remind our customers to open their eyes and choose well-known companies with good industry reputation. This is the greatest guarantee for themselves.