CN1061698C - W-Ni-Fe alloy of high density and production method thereof - Google Patents

W-Ni-Fe alloy of high density and production method thereof Download PDF

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Publication number
CN1061698C
CN1061698C CN97108100A CN97108100A CN1061698C CN 1061698 C CN1061698 C CN 1061698C CN 97108100 A CN97108100 A CN 97108100A CN 97108100 A CN97108100 A CN 97108100A CN 1061698 C CN1061698 C CN 1061698C
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tungsten
iron
nickel
purity
gt
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CN97108100A
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CN1201838A (en
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郭庆虎
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郭庆虎
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Abstract

本发明涉及钨镍铁素高比重合金,其中钨的含量大于或等于92.2%(重量);按说明书的要求配料,压型后,半成品应置于有经1550℃以上高温处理的氧化镁或氧化锆填充料的高温陶瓷舟皿中烧结,这样可以免除氧、碳等杂质对成品的污染,从而使其密度≥99.5%,各项物理机械性能也完全符合要求。 The present invention relates to a tungsten heavy alloy of nickel ferrite, wherein the content of tungsten is equal to or greater than 92.2% (by weight); instructions required ingredients, after profiling, with a semi-finished product should be placed in the high temperature treatment above 1550 deg.] C or a magnesium oxide boat temperature ceramic sintered zirconia filler, can be dispensed with so that oxygen, carbon, impurities such as contamination of the finished product, so that its density ≥99.5%, the physical and mechanical properties are also fully meet the requirements.

Description

钨镍铁系高比重合金及其制法 Nickel-iron, tungsten heavy alloy preparation method

本发明涉及一种钨镍铁系高比重合金,尤其涉及其制作方法。 The present invention relates to a tungsten heavy alloy nickel-iron-based, in particular, it relates to a method for its production.

钨镍铁系高比重合金主要应用于高新技术领域和军事工业之中。 W-Ni-Fe-based alloy is mainly used in a high proportion of high-tech fields and military industries. 它们的特点是具有超常的比重和相应的硬度,同时还有一定的可延伸性和弹性模量,较低的热膨胀系数等。 They are characterized by having a specific gravity and a corresponding extraordinary hardness, along with some extensibility and elastic modulus, low thermal expansion coefficient.

我国自二十世纪六十年代以来已开始在研制钨镍铁系高比重合金方面进行了大量探索,但截至目前,尚未找到稳定可靠且较简便的制作方法,而且制成品的密度很难达到≥99.5%理论密度的要求。 China since the 1960's has begun in the development of tungsten heavy alloy nickel-iron a lot of aspects to explore, but so far have not found reliable and relatively simple production methods, and the density of the finished product is difficult to achieve ≥99.5% theoretical density requirements.

本发明的目的,是提供一种实用的钨镍铁系高比重合金及其制法,该方法不仅较为简便,而且因为能完全排除氧,碳等杂质对制成品的污染,故使其物理机械性能符合要求。 Object of the present invention is to provide a practical tungsten heavy alloy of nickel-iron-based method thereof, which method is not only more convenient, but also because it can complete exclusion of oxygen, carbon impurities such as contamination of the finished product, so it is physical mechanical properties meet the requirements.

本发明所涉及的一种钨镍铁系高比重合金,其各组分之重量百分比为:钨92.2、镍5、铁1.5,余为铜。 Nickel-iron-based tungsten heavy alloy according to the present invention, the weight percentage of the components as follows: 92.2 tungsten, 5 of nickel, 1.5 iron, the balance being copper.

而制造上述钨镍铁系高比重合金的方法则依次经历配料,压型和烧结工序,在所述配料工序中使用了如下规格的原材料:钨粉、纯度>99.88%,粒度4μm;镍粉、纯度>99.9%,粒度≤45μm;铁粉、纯度>99.5%,O2+c<0.5%,其中c<0.05%,粒度≤71μm;铜粉、纯度>99.5%,粒度≤71μm;在所述烧结工序中,压型所得之半成品应置于高温陶瓷舟皿中,并且用经过1550℃以上高温处理过的氧化镁或氧化锆填充料包裹,烧结温度1460~1480℃,时间60~120分钟。 Materials and method for producing the nickel-iron, tungsten heavy alloy is sequentially subjected ingredients, type and pressure sintering process, was used in the following specification ingredient step of: tungsten powder, purity> 99.88%, particle size of 4 m; Ni powder, purity> 99.9%, particle size ≤45μm; iron powder, purity> 99.5%, O2 + c <0.5%, where c <0.05%, a particle size ≤71μm; copper powder, purity> 99 0.5%, particle size ≤71μm; in the sintering step, the resulting semi-pressure should be placed in high temperature ceramic boat, and after more than 1550 deg.] C temperature with the treated magnesium oxide or zirconium oxide filler wrapped, the sintering temperature 1460 ~ 1480 ℃, time 60 to 120 minutes.

依本发明之方法所得成品之比重为17.5~17.7g/cm3,表面硬度为28.5~30(HRC),且其表面周正,呈均匀的灰白色,具有高比重合金所必需的物理机械性能。 According to the process of the invention, the proportion of the resulting finished product is 17.5 ~ 17.7g / cm3, a surface hardness of 28.5 ~ 30 (HRC), and the surface Zhou, a uniform gray, heavy alloy having necessary physical Mechanical behavior.

Claims (2)

1.一种钨镍铁系高比重合金,其各组分之重量百分比为:钨92.2、镍5、铁1.5、余为铜。 A nickel-tungsten heavy alloy iron, the weight percentage of the components as follows: 92.2 tungsten, 5 of nickel, 1.5 iron, the balance being copper.
2.如权利要求1所述的钨镍铁系高比重合金的制造方法,依次经历配料,压型和烧结工序,其特征在于:A、配料使用的原材料规格为—钨粉、纯度>99.88%,粒度4μm;镍粉、纯度>99.9%,粒度≤45μm;铁粉、纯度>99.5%,O2+c<0.5%,其中c<0.05%,粒度≤71μm;;B、压型后的半成品应包裹在经1550℃以上高温处理过的氧化镁或氧化锆填充料内且置于高温陶瓷舟皿中进行烧结,烧结温度1460℃~1480℃,烧结时间60~120分钟。 The method for producing nickel-iron, tungsten heavy alloy according to claim 1, successively subjected ingredients, type and pressure sintering step, wherein: A, raw material specifications for the ingredients used - tungsten powder, purity> 99. 88%, a particle size of 4 m; nickel powder, purity> 99.9%, particle size ≤45μm; iron powder, purity> 99.5%, O2 + c <0.5%, where c <0.05%, a particle size ≤71μm ;; B, the semi-finished product to be wrapped and placed profiling in treated by more than 1550 deg.] C temperature magnesia or zirconia filler sintered high temperature ceramic boat, the sintering temperature 1460 ℃ ~ 1480 ℃, sintering time 60 to 120 minutes.
CN97108100A 1997-06-10 1997-06-10 W-Ni-Fe alloy of high density and production method thereof CN1061698C (en)

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CN1061698C true CN1061698C (en) 2001-02-07

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Families Citing this family (5)

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Publication number Priority date Publication date Assignee Title
CN101316672B (en) 2005-11-28 2011-06-22 联合材料公司 Tungsten alloy particles, machining process with the same, and process for production thereof
CN100503089C (en) 2006-08-02 2009-06-24 上海-东机电有限公司 Composition for high specific weight eccentric wheel for vibrating motor and its use
CN102974823B (en) * 2012-12-12 2015-05-20 广汉川冶新材料有限责任公司 Sintering method of high gravity alloy
CN103978205A (en) * 2013-02-07 2014-08-13 上海六晶金属科技有限公司 Method for sintering green bodies of tungsten metal plates, molybdenum metal plates, tungsten alloy plates or molybdenum alloy plates
CN105441765B (en) * 2016-01-05 2018-01-09 河南科技大学 Bullet high-specific gravity tungsten alloy and preparation method thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1033651A (en) * 1987-10-23 1989-07-05 西蒙·鲍库茨 Heavy tungsten-nickel-iron alloys with very high mechanical characteristics and process for production of said alloys

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1033651A (en) * 1987-10-23 1989-07-05 西蒙·鲍库茨 Heavy tungsten-nickel-iron alloys with very high mechanical characteristics and process for production of said alloys

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