How to maintain radial insert bearing housing?

Maintenance and maintenance of radial insert bearing housing
The following points should be paid special attention to during the use of radial insert bearing housing:
(1) Use of radial insert bearing housing cooling system. Radial insert bearing housing cooling water not only prolongs the service life of the bearing housing, but also improves production efficiency when used correctly. The materials of radial insert bearing housing are generally made of special bearing housing steel through various treatments, and even the best bearing housing steel also has the limit of their use, such as temperature. When the bearing seat is in use, if the mold temperature is too high, it is easy to cause early cracks on the surface of the mold core, and some radial insert bearing housings have not even exceeded 2000 mold times. Even the radial insert bearing housing has changed its color due to the high temperature of the bearing seat during production.

 

After measurement, it even reached more than 400 degrees. When such a temperature is chilled by the release agent, it is easy to cause cracks. , The products produced are also prone to deformation, strain, sticking, etc. In the case of using radial insert bearing housing cooling water, the use of mold release agent can be greatly reduced, so that the operator will not use mold release agent to reduce the temperature of the bearing housing. The advantage is to effectively prolong the life of the bearing seat, save the die-casting cycle, improve the product quality, reduce the occurrence of mold sticking, strain and aluminum sticking, and reduce the use of mold release agents. It can also reduce the loss of the ejector pin and core due to overheating of the bearing seat.

(2) The radial insert bearing housing must be preheated in the process of starting production to prevent the occurrence of cracks caused by the sudden encounter of hot metal liquid in the cold bearing housing. For more complex bearing housings, a blowtorch, liquefied gas, The mold temperature machine is used in good conditions, and the relatively simple bearing seat can be preheated by slow injection.
(3) The cleaning of the parting surface of the radial insert bearing housing is very troublesome and easy to ignore. The operator should thoroughly clean the parting surface of the bearing housing with kerosene, which can not only prevent the bearing housing from being squeezed In addition, after cleaning, it can open up the exhaust groove on the bearing seat that is blocked by the residue of the mold release agent or other dirt, which is conducive to the discharge of the gas in the cavity during the injection process and improves the quality of the product.

(4) If the radial insert bearing housing is equipped with neutron control, it is absolutely forbidden to have joints on the signal line between the die-casting machine and the bearing housing. The reason is very clear. In daily production, it is difficult to avoid water on the signal line. Or the place where the joint is wrapped is easy to break, resulting in a short circuit with the machine tool. If the signal is wrong, the alarm will automatically stop and delay the time, and the signal will be disordered, and the radial insert bearing housing will be damaged. cause unnecessary losses. Note that the travel switch is waterproof.

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