Many customers do not know what the fasteners are when ordering the heating tube. The fasteners are composed of fixed brackets, threads, washers, nuts, and binding posts. When the customer installs the electric heating tube, only two equals or A hole slightly larger than the diameter of the thread of the fastener, and then thread the threaded portion of the fastener through the hole and screw it with a nut. The appearance of the fastener perfectly solves the problem that the heating tube is difficult to install, and the operation is convenient. It can be seen from the above that the diameter of the thread p of the fastener determines the diameter of the opening, so what determines the thread diameter of the fastener?

The answer is the diameter of the electric heating tube, and the diameter of the electric heating tube has a certain proportional relationship with the thread diameter of the fastener. (The diameter of the heating tube is in mm, the thread diameter of the fastener is represented by Mxx, and 1.5 is the tooth spacing of the thread.)

When the pipe diameter = 8mm, the thread diameter of the fastener = M14*1.5
When the pipe diameter = 10mm, the thread diameter of the fastener = M16*1.5
When the pipe diameter = 12mm, the thread diameter of the fastener = M18*1.5
When the pipe diameter = 16mm, the thread diameter of the fastener = M22 * 1.5
When the pipe diameter = 18mm, the thread diameter of the fastener = M24 * 1.5
When the pipe diameter = 20mm, the thread diameter of the fastener = M27 * 1.5
┋ ┋
When the pipe diameter = 25mm, the thread diameter of the fastener = M30 * 1.5

It can be seen from the above list that the relationship between the thread diameter of the heating pipe fastener and the pipe diameter is 6 parameters. When the pipe diameter is 20 mm, the thread diameter of the fastener is M27*1.5, when the pipe diameter is 25 mm. The fastener has a thread diameter of M30*1.5. These two are relatively special relationships. Grasping the above rule, the thread diameter of the fastener can be judged according to the diameter of the heating pipe, and then the diameter of the opening of the installation object is determined.

The main phase of lithium silicon alloy is Li13Si4, lithium silicon alloy is dark gray metal solid powder, and its property is extremely unstable, it reacts strongly with water to produce large amounts of heat and hydrogen, spontaneously ignites in moist air. Due to its advantages of safety, stability and low cost, lithium silicon alloy is the most commonly used anode material of thermal battery. 

Lithium-Silicon Alloy

Shandong Zhongshan Photoelectric Materials Co., Ltd , https://www.cnzsem.com