Abstract:
The invention concerns a new pre alloyed steel powder comprising in addition to iron and inevitable impurities, by wt%, 1.3-1.7% by weight of Cr, 0.15 -0.3% by weight of Mo, 0.09-0.3% by weight of Mn, not larger than 0.01 by weight of C, not larger than 0.25% of O. The invention also concerns a method of preparing sintered products from the new material.
Abstract:
A heat-insulating component consists of a porous body obtained by moulding and sintering an iron-base powder having an admixture of 2-10 % by weight of silicon, preferably 4-8 % by weight. A method of making the heat-insulating component includes the steps of preparing an iron-base powder mixture with an admixture of 2-10 % by weight of silicon, preferably 4-8 % by weight; optionally supplying the powder with further admixtures in the form of 3-12 % by weight of maganese, preferably 5-10 % by weight, up to 25 % by weight of chromium, up to 15 % by weight of nickel, up to 2.5 % by weight of molybdenum and up to 2 % by weight of carbon, moulding the powder mixture into a body of desired shape, and sintering the body for obtaining a porous component having a coefficient of thermal conductivity below about 12 W/m°K, preferably below 7 W/m°K.
Abstract:
The present invention concerns a method for producing compacted and sintered parts from an austenitic stainless steel powder composition. The invention further concerns a sintered component made by the method, in particular a turbocharger component.
Abstract:
The present invention concerns a method of producing sintered components, and sintered components by the method. The method provides a cost effective production of sintered steel parts with wear resistance properties comparable to those of components made from chilled cast iron.
Abstract:
A reusable mould for forming a concrete base (100) is provided. The mould (200) comprises a lower part (220) and an upper part (240) being removably connectable to each other, and wherein at least one base element (117, 120) is releasably connected to the upper part (240) or lower part (220).
Abstract:
The present invention concerns a powder metallurgical produced component and the manufacturing process thereof. In particular, the component is a belt pulley to be used in a combustion engine, the component having enhanced resistance against wear and sufficient strength. The production method utilise comparably non expensive powder materials and production steps, hence being cost effective.
Abstract:
The present invention concerns low alloy PM materials which after single pressing and sintering utilising traditional powder metallurgy processes and equipment combine high mechanical strength and high density with maintained precision of tolerance. As base material is used an iron powder having at least one alloying element diffusion-bonded to the outer surfaces of unalloyed iron particles.
Abstract:
Iron based powder mixtures, which except iron or steel powder and one or more alloying elements in powder form also contain an addition of up to 0.5 % of talloil to prevent segregation/dusting.
Abstract:
A water-atomized iron-based powder pre-alloyed with 0.75-1.1 % by weight of Ni, 0.75-1.1 % by weight of Mo and up to 0.45 % by weight of Mn and further including 0.5-3.0%, preferably 0.5-2.5% and most preferably 0.5-2.0% by weight of Cu and inevitable impurities, the balance being Fe.
Abstract:
The present invention concerns the preparation of a manganese sulphide by heating of particulate or agglomerate manganese sulphate to a temperature of at least 700 DEG C in the presence of at least one reduction agent.