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In industrial production, the use of pressure instruments is also particularly important. A pressure gauge is composed of several main components: a connector, a Bourdon tube, and a movement. The welding methods for pressure gauges include lead-zinc welding, silver welding, TIG welding, and special welding methods, among others. The reed in such instruments can function properly for 100,000 cycles. Its working principle is that the deformation of a helical spring causes the movement mechanism (with fan-shaped teeth and a central gear) to drive the pointer, which in turn indicates the pressure of the medium being measured on the scale on the faceplate. In daily use, pressure gauges often encounter the following problems: 1. The fan-shaped teeth of the pressure gauge tend to wear out after being in use for a while. 2. The gauge pointer is pushed below its stop position due to the sudden pulse in the medium being measured. 3. The gauge pointer does not return to zero after the pipeline or equipment is depressurized. To address the above issues, the engineers at Chengfeng Instruments shared the following corresponding solutions: 1. Widening the fan-shaped teeth at the edge of the component to improve the contact surface and enhance wear resistance, thereby extending its service life. 2. The movement of the gauge is its core component; over 80% of gauge failures are caused by damage to this movement, which renders the gauge unusable. The problem of gear shifting in the gauge was resolved by adding limit pins to the existing movement. 3. Add a spacer to resolve the issue of the instrument not returning to zero.