Chain fall hoist brake pads process and requirements

Manual hoist brake largely from the role of the friction plate, its preparation process is mainly composed of pressing, sintering and machining technology, in addition to lifting hoist in addition to many mechanical equipment involved in the brake brake function, in fact, are inseparable from the use of this similar friction plate, the whole process belongs to the industry in the powder gold.

Friction plates mainly play the following roles

Improve braking effect: Friction pads generate friction through contact with the brake wheel, which helps the hand chain hoist to provide stable braking function when the load is lifted, ensuring the safety of the equipment.

Extends service life: the design and material determine its wear resistance and service life, thus reducing the frequency of maintenance and replacement of the equipment.

Enhances operational smoothness: It also effectively reduces the vibration generated during lifting and lowering of the hand chain hoist, enhancing operational smoothness.

Why sintered

Because the production process of hand chain hoist friction plate is powder pressing molding, which is the first process, the quality of the mixed powder as well as the sparseness of the pressing will affect it to play the braking effect. Waiting for the pressing molding needs to be sintered, the purpose is to make the friction plate with the required strength hardness, impact toughness, density and a certain degree of thermal conductivity. At the same time, the sintering of the appropriate pressure can be better to achieve the overall quality improvement. By observing the surface of the brake pads we can also find that there are unevenly distributed copper fragments, that is, a kind of copper-based friction pads, this type can increase its wear resistance and braking performance.

Friction Pad Replacement Requirements

The friction layer of the friction pads wears out over time. Generally, friction pads need to be replaced after a certain level of thickness reduction (e.g., less than 50% of the original thickness).

If they are cracked, chipped or visibly damaged, they need to be replaced immediately. This is because cracks can cause a significant reduction in the strength of the friction pads, which can affect the proper functioning of the braking system.

With prolonged use, exposure to high temperatures, humidity, etc., the friction pad material will deteriorate, resulting in a loss of elasticity and insufficient friction, and must be replaced.

If abnormal noise or vibration occurs during use and there is no obvious external damage to the surface of the friction pads, they may be worn unevenly or excessively internally, and replacement of the friction pads should also be considered.

Two put on the brake seat of the friction plate should be kept in synchronization with the replacement, such as a piece of thinning affects the brake is recommended to replace the two pieces together, otherwise the longer the use of time, then HSZ chain block hoist braking effect will soon be a problem. In short, sintering is only a friction plate production process, unlike metal melting, most cases are not particularly high requirements for the completion of the sintering can be used directly, if the high precision requirements can also be done after treatment.