The centrifuge is an indispensable laboratory instrument in today's life chemistry research center, and how to ensure the safe operation of the centrifuge and give full play to its performance is a major concern for laboratory technicians.

In order to improve the utilization rate of the centrifuge and extend the service life, ensure the safe operation of laboratory instruments and avoid accidents, the following analysis of the original solids of laboratory instrument centrifuge failures will occur.

1. When the centrifuge tubes are balanced, the balance of the centrifuge tubes placed symmetrically exceeds 0.1-1 g due to the long-term use of the balance and the failure to calibrate.

2. When the centrifuge tube is loaded, the sample tube is full or the cap of the centrifuge tube is not tightened and sealed. During the centrifugation process, the high vacuum state in the centrifuge chamber causes the centrifuge tube to flatten, rupture, and overflow the sample liquid, resulting in an unbalanced rotor. Shaft bending or broken shaft accident.

3. Because the specific gravity of the original sample is not equal to the specific gravity of the balance fluid, the rotor's dynamic balance is out of balance and an accident occurs.

4. When using a horizontal rotor, the serial number of the bucket and the serial number of the main body of the horizontal rotor are not carefully installed, which affects the dynamic balance of the rotor.

5. Aluminum alloy centrifuge tube caps and stainless steel centrifuge tube caps are mixed (the two have different specific gravity) and accidents occur.

6. Improper use and improper sterilization of the rubber seal ring in the centrifuge tube cap and the rubber seal ring of the rotor cover, such as long-term use of internal fracture and solid high temperature sterilization (dry oven baking) and other treatments, aging and cracking, loss of sealing effect, etc. It overflows during high-speed operation, so that the rotor runs in an unbalanced state.