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Stainless steel powder metallurgy material and preparation method thereof
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A technology of powder metallurgy and stainless steel, applied in the field of stainless steel powder metallurgy materials and its preparation, can solve the problems of high strength, poor corrosion resistance, poor plasticity and weldability, etc., achieve high mechanical strength, reasonable raw material matching, improve wear resistance and The effect of corrosion resistance
Inactive Publication Date: 2018-09-28
繁昌县盛民机械制造有限公司
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Abstract
Description
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Embodiment 1
[0020] A stainless steel powder metallurgy material, which is composed of the following raw materials in weight percentage:
[0021] Cr10%, Ni7.6%, Al1.3%, lead 0.1%, Se0.8%, ball milling aid 0.3%, and the rest is iron.
[0022] Described ball milling aid is made up of the raw material of following weight part:
[0024] The preparation method comprises the following steps:
[0025] (1) Take sucrose acetate isobutyrate, add it to creosote oil, and stir evenly to obtain an ester dispersion;
[0026] (2) Mix graphite powder and zincstearate, heat and stir at 60°C for 10 minutes, add to the above ester dispersion, and ultrasonicate for 3 minutes to obtain the product.
[0027] A preparation method of stainless steel powder metallurgy material, comprising the following steps:
[0028] (1) Mix Cr, Ni, Al, lead, Se, and iron, put them into a mixer, and stir at 300 rpm for 15 minutes to obt...
Embodiment 2
[0033] A stainless steel powder metallurgy material, which is composed of the following raw materials in weight percentage:
[0034] Cr11%, Ni10%, Al2%, lead 0.3%, Se1%, ball milling aid 0.5%, and the rest is iron.
[0035] Described ball milling aid is made up of the raw material of following weight part:
[0037] The preparation method comprises the following steps:
[0038] (1) Take sucrose acetate isobutyrate, add it to creosote oil, and stir evenly to obtain an ester dispersion;
[0039] (2) Mix graphite powder and zinc stearate, heat and stir at 65°C for 20 minutes, add to the above ester dispersion, and ultrasonicate for 5 minutes to obtain the product.
[0040] A preparation method of stainless steel powder metallurgy material, comprising the following steps:
[0041] (1) Mix Cr, Ni, Al, lead, Se, and iron, put them into a mixer, and stir at 300 rpm for 15 minutes to obta...
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Abstract
The invention discloses a stainless steel powdermetallurgy material. The stainless steel powdermetallurgy material is composed of the following raw materials of, by weight, 10-11% of Cr, 7.6-10% ofNi, 1.3-2% of Al, 0.1-0.3% of lead, 0.8-1% of Se, 0.3-0.5% of a ball milling auxiliary agent, and the balance iron. According to the preparation method, graphitepowder is taken as the raw material ofthe ball-milling auxiliary agent, and wood creosote oil is added, so that the wear resistance and the corrosion resistance of a finished metallurgical material are effectively improved; and the metallurgical material takes the Cr, the Ni, the Al, the lead, the Se and the iron as the main body, the raw materials are reasonably matched, and the mechanical strength of the finished product is high.
Description
technical field [0001] The invention belongs to the field of metallurgy, and in particular relates to a stainless steel powder metallurgy material and a preparation method thereof. Background technique [0002] Stainless steel is often divided into martensitic steel, ferritic steel, austenitic steel and so on according to the organizational state. In addition, it can be divided into: chromium stainless steel, chromium-nickel stainless steel and chromiummanganesenitrogen stainless steel. The corrosion resistance, toughness and weldability of ferritic stainless steel increase with the increase of chromium content, and the resistance to chloride stress corrosion is better than other types of stainless steel. Ferritic stainless steel has good corrosion resistance and oxidation resistance because of its high chromium content, but its mechanical properties and process performance are poor. It is mostly used in acid-resistant structures with low stress and as anti-oxidation stee...
Claims
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Application Information
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