A method for manufacturing gears from powder metallurgy anti-friction materials
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A kind of anti-friction material and powder metallurgy technology, applied in the field of powder metallurgy, to achieve the effect of soft texture, reducing damage and improving novelty
Active Publication Date: 2022-06-07
南通旺鑫新材料有限公司
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Problems solved by technology
[0005] Aiming at the deficiencies of the prior art, the present invention provides a method for manufacturing gears with powder metallurgy anti-friction materials, which solves the problem that there is no method for manufacturing gears based on powder metallurgy anti-friction materials in the market
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Embodiment 1
[0030] Embodiments of the present invention provides a method of manufacturing a gear of powder metallurgy anti-wear material, comprising a production method, a friction-reducing alloy material formulation and a cermet formulation, wherein: the method step is:
[0031] S1, according to the material of a single product multiplied by the specifications of the total amount of a production batch, each material of the formula is weighed separately;
[0032] S2, the chromium powder, iron powder, molybdenum powder and graphite in a nitrogen atmosphere are used ball milling for 1-2 hours to improve the fineness of the powder;
[0033] S3, the remaining material of the alloy material formulation and the grinding in the mix hopper added mixing, and under the protection of nitrogen using the stirring equipment stirring for 1-2 hours, until the stirring to a uniform state;
[0034] S4, at the same time, the cermet formula material is added and mixed in another mixing hopper, and stirred by st...
Embodiment 2
[0041] The present embodiment differs from Example I in that: a method of manufacturing gears of powder metallurgy anti-wear material, comprising a production method, a grinding-reducing alloy material formulation and a cermet formulation, the method steps are:
[0042] S1, according to the material of a single product multiplied by the specifications of the total amount of a production batch, each material of the formula is weighed separately;
[0043] S2, the chromium powder, iron powder, molybdenum powder and graphite under nitrogen atmosphere using ball mill grinding for 1-2 hours;
[0044] S3, the remaining material of the alloy material formulation and the grinding in the mix hopper added mixing, and under the protection of nitrogen using the stirring equipment stirring for 1-2 hours, until the stirring to a uniform state;
[0045] S4, at the same time, the cermet formula material is added and mixed in another mixing hopper, and stirred by stirring equipment for 1-2 hours un...
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Abstract
The invention provides a method for manufacturing a gear from a powder metallurgy antifriction material, and relates to the field of powder metallurgy. The method for manufacturing gears based on powder metallurgy anti-friction materials includes a manufacturing method, an anti-friction alloy material formula and a cermet formula. The anti-friction alloy material used in the present invention utilizes a copper-iron-based composite base material, and the higher copper content ensures that the anti-friction material has superior corrosion resistance and running-in performance, and the texture of copper is relatively soft, which can reduce the coefficient of friction. Reduce noise, and cooperate with cermet materials to make gears with inner rings made of cermets and outer rings made of wear-reducing alloy materials. While improving the wear-reducing performance of the gears, the strength of the gears is guaranteed, and the formula of this method is added with stearate Zinc acid can lubricate the mold, reduce the resistance encountered in the demoulding process, and reduce the damage to the mold, and the tiny pores formed by the volatilization of zinc stearate during the sintering process can make the gear have a certain The oil content can form a self-lubricating effect.
Description
Technical field [0001] The present invention relates to the field of powder metallurgy technology, specifically a method for manufacturing gears of powder metallurgy anti-wear materials. Background [0002] Powder metallurgy is an industrial technology for the preparation of metal powders or the use of metal powders (or mixtures of metal powders and non-metallic powders) as raw materials, formed and sintered, and the preparation of metal materials, composite materials and various types of products. At present, powder metallurgy technology has been widely used in transportation, machinery, electronics, aerospace, weapons, biology, new energy, information and nuclear industries, and has become one of the most dynamic branches of new material science. Powder metallurgy technology has a series of advantages such as significant energy saving, material saving, excellent performance, high product accuracy and good stability, etc., which is very suitable for mass production. In addition,...
Claims
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Application Information
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