Powder metal composition comprising secondary amides as lubricant and/or binder
A technology of powder metal and composition, which is applied in the field of manufacturing green compacts and bonded iron-based powder compositions, and can solve the problems of stains on pressed bodies and pollution of sintering furnaces, etc.
Active Publication Date: 2010-11-10
HOGANAS AB
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Problems solved by technology
The disadvantage of this type of lubricant is that due to the release of metal from the lubricant during sintering, the oxides of the metal in the lubricant contaminate the inside of the sintering furnace, another problem is the possible formation of stains on the compact after sintering
Method used
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Embodiment 3
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Abstract
The invention relates to a powdered-metal combination which is used as a lubricant and / or agglomerant and comprises iron-base powder and at least a secondary amide with the general formula of R1-NH-CO-R2. In the formula, R1 is the same with or different from R2, and R1 and R2 are saturated or unsaturated aliphatic hydrocarbon groups with linear chains or branch chains. The invention further relates to a method for manufacturing green ware bodies with the powdered-metal combination and a method for manufacturing an adhesive iron-base powdered combination, the use of at least one secondary amide as an iron-base powdered lubricant and / or binder and a die wall lubricant.
Description
Powder metal composition containing secondary amide as lubricant and / or binder Technical field The invention relates to a powder metal composition. Specifically, the present invention relates to a powder metal composition comprising a lubricant and / or binder containing at least one secondary amide. The invention also relates to a method of manufacturing a green body, a method of manufacturing a bonded iron-based powder composition, and the use of lubricants and / or binders. Background technique The metal powder is used in the industry of manufacturing metal products by pressing the metal powder into a mold under high pressure, releasing the compact from the mold, and optionally sintering the product. In most powder metallurgy (PM) applications, the powder contains a lubricant to provide the necessary lubrication between the powder particles during pressing and between the mold and the compact during demolding from the mold. The lubrication achieved by the lubricant contained ...
Claims
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IPC IPC(8): B22F1/00C22C33/02B22F1/10C22C
CPCB22F2998/00B22F1/0059B22F2003/023B22F1/10B22F1/00B22F1/16C22C33/02
Inventor A·阿赫林M·拉姆斯泰特
Owner HOGANAS AB