2024-12-31 Pageview:34
How much powder metallurgy lubricant is added? The molding of powder metallurgy products includes multiple processes. No matter which process, powder metallurgy lubricant is one of the indispensable auxiliary materials. Especially the demoulding lubricant has a great impact on the quality of powder metallurgy products. How to use this kind of powder metallurgy lubricant correctly?
The first step is to mold the metal powder into a low-density workpiece; then the metal powder is reinforced by sintering to obtain a powder metallurgy product with a certain hardness and shape. In this process, powder metallurgy lubricant plays a very important role, especially in the later demoulding process.
When choosing powder metallurgy lubricant, be sure to choose high-quality and pollution-free products, so that even when a large powder metallurgy product needs to be molded with great pressure, the powder metallurgy lubricant can maintain its due role.
For powder metallurgy demoulding agent, it can reduce the demoulding force by half, greatly extending the service life of the mold and machine; and the damage and wear caused by demoulding will be relatively small. Since the product of powder metallurgy release agent after decomposition is gas, no dirt will be left on the surface of powder metallurgy products due to sintering.
Not only that, if powder metallurgy release agent is used to coat the inner wall of the forming mold, it will have a positive effect on eliminating the problem of mixed lubricant evaporation and increasing the density of the workpiece.
Good performance is closely related to the correct use method, and the same is true for powder metallurgy lubricants. Fortunately, its use is relatively simple. It only needs to be infiltrated with flow so that it can be evenly covered on the surface of the product.
In most cases, there is no need to deliberately clear the residue of powder metallurgy lubricant after processing, because under proper ventilation conditions, re-sintering the casting is to eliminate all residues and will not affect any aspects.
Tianshi NEW-0401 is a typical powder metallurgy warm pressing lubricant with the following advantages:
1. Effectively reduce friction during powder compaction without affecting green strength.
2. The surface of the workpiece is smooth and bright after demolding, and there are no black spots.
3. Complete decomposition during sintering, no residue, and no pollution to the sintering furnace.
4. Reasonable and stable particle size distribution.
5. Little effect on powder fluidity and has certain anti-caking ability.
Recommended addition amount 0.5%-1%.
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