Views: 0 Author: Site Editor Publish Time: 2024-04-29 Origin: Site
The thermal bimetal of the KSD thermostat is a composite metal, which is generally composed of two or more layers of metals or alloys with different expansion coefficients that are firmly combined along the entire contact surface. Its working principle is that when the temperature changes, the shape of the thermal bimetal changes, allowing the KSD thermostat to well control the sudden jump and recovery of the temperature.
KSD thermostat thermal bimetallic sheet has two failure modes: zero-point drift failure and cracking failure caused by the thermal bimetallic sheet.
1. Zero point drift refers to the sudden jump or recovery action of the thermal bimetal when the temperature is higher or lower than the required temperature. There are three main cases of zero point drift caused by thermal bimetal strips:
1. The performance parameters of the thermal bimetal are unqualified, resulting in zero point drift.
2. The size parameters of the thermal bimetal are unqualified, resulting in zero point drift.
3. The separation between the thermal bimetallic sheets causes zero point drift.
2. The thermal bimetallic sheet cracks and fails, and the layers of the thermal bimetallic sheet are separated. When the crack expansion force of the thermal bimetal is greater than the interface force of the thermal bimetal, the thermal bimetal will crack and fail.
