CN1043531A - 合金铸铁气缸套 - Google Patents

合金铸铁气缸套 Download PDF

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Publication number
CN1043531A
CN1043531A CN 88105813 CN88105813A CN1043531A CN 1043531 A CN1043531 A CN 1043531A CN 88105813 CN88105813 CN 88105813 CN 88105813 A CN88105813 A CN 88105813A CN 1043531 A CN1043531 A CN 1043531A
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CN
China
Prior art keywords
cast iron
boron
tungsten
jacke
alloy cast
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
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CN 88105813
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English (en)
Inventor
侯运德
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HENGYANG CITY POWER FITTINGS FACTORY
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HENGYANG CITY POWER FITTINGS FACTORY
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by HENGYANG CITY POWER FITTINGS FACTORY filed Critical HENGYANG CITY POWER FITTINGS FACTORY
Priority to CN 88105813 priority Critical patent/CN1043531A/zh
Publication of CN1043531A publication Critical patent/CN1043531A/zh
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05CINDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2203/00Non-metallic inorganic materials
    • F05C2203/04Phosphor

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  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Abstract

本发明涉及一种内燃机合金铸铁气缸套,化学成分为:3.0~3.4%硅2.0~2.6%、锰0.8~1.3%,磷0.15~0.5%,硫低于0.1%,硼0.02~0.08,钨0.01~0.06%,余为铁。由于钨的加入,大幅度提高了气缸套的耐磨性,经国家级产品质量监检中心测试,其相对耐磨性比硼铸铁提高60%以上。

Description

本发明涉及一种内燃机合金铸铁气缸套。
已知的合金铸铁气缸套,如专利申请号为86107845的合金铸铁气缸套,含碳3.1~3.8%,硅2.1~2.6%,锰0.7~1.3%,磷0.15~0.50%,硫低于0.1%,硼0.02~0.08%,铝0.3~1.0%,余为铁。这种合金铸铁气缸套,经离子热处理后,其耐磨性、减磨性比高磷铸铁气缸套好,但其不足之处要经离子热处理,增加成本和生产周期,其次是形成硬化相的合金元素只有硼,而硼的含量不能过高,否则易形成呈枝晶分布的复合物。
本发明的目的在于提供一种成本低,耐磨性比硼铸铁气缸套更好的合金铸铁气缸套。
本发明的目的是这样实现的:气缸套用合金铸铁制造,合金铸铁含有铁、碳、硅、锰、磷、硫、硼、钨等元素,含量(重量百分比)为:碳3.0~3.4,硅2.0~2.6,锰0.8~1.3%,磷0.15~0.5%,硫低于0.1%,硼0.02~0.08%,钨0.01~0.06%,余为铁。
本发明-合金铸铁气缸套,铸铁含钨、硼量(重量百分比)可以为:含钨0.02~0.04%,含硼0.03~0.06%。
本发明-合金铸铁气缸套-钨硼铸铁气缸套的优点在于耐磨性好,不需热处理,经国家拖拉机产品质量监督检测中心快速考核磨损试验,结果为:钨硼铸铁气缸套径向磨损值为0.056~0.064毫米,而硼铸铁为0.0926~0.1192毫米,相对耐磨性提高了60%以上。因为钨元素的加入,在铸铁的金相组织中,增加了新的硬质相-钨化物及含钨复合物,其显微硬度很高,达到HV1160~1300,钨还能改善硬质相的分布,钨能够稳定和细化珠光体,提高了基体质量,钨还能使组织中不易形成过冷石墨,钨在铸铁中最突出的特点是热稳定性好,这对于长期处在高温、高压状态下工作的气缸套来说,更显得可贵。因此,钨硼铸铁气缸套耐磨性好。中国钨的资源丰富,比用铬、钼、铜作合金铸铁成本低。
按本发明,合金铸铁的熔炼可以在电炉、冲天炉或冲天炉-电炉双联熔炼,合金元素钨用钨铁的形式与金属炉料一起加入炉中,合金元素硼可以用硼铁或硼矿石的形式,炉后或炉前加入均可。
实施例:钨硼合金铸铁化学成分为:碳3.2%,硅2.2%,锰1.1%,磷0.3%,硫低于0.1%,硼0.04%,钨0.04%,余为铁。

Claims (3)

1、一种内燃机气缸套,是用合金铸铁制造的,合金铸铁含有铁、碳硅、锰、磷、硫、硼等元素,含量(重量百分比)为碳3.1~3.4,硅2.0~2.6%,锰0.8~1.3%,磷0.15~0.5%,硫低于0.10%,硼0.02~0.08%,余为铁,本发明的特征在于还含有钨,含量为0.01~0.06%。
2、根据权利要求1的合金铸铁气缸套,其特征在于含钨量为0.02~0.04%。
3、根据权利要求1或2的合金铸铁气缸套,其特征在于含硼量为0.03~0.06%。
CN 88105813 1988-12-12 1988-12-12 合金铸铁气缸套 Pending CN1043531A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 88105813 CN1043531A (zh) 1988-12-12 1988-12-12 合金铸铁气缸套

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 88105813 CN1043531A (zh) 1988-12-12 1988-12-12 合金铸铁气缸套

Publications (1)

Publication Number Publication Date
CN1043531A true CN1043531A (zh) 1990-07-04

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ID=4833955

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 88105813 Pending CN1043531A (zh) 1988-12-12 1988-12-12 合金铸铁气缸套

Country Status (1)

Country Link
CN (1) CN1043531A (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8183242B2 (en) 2004-12-31 2012-05-22 Piaoyang Sun Aminopyrimidine compounds and their salts, process for preparation and pharmaceutical use thereof
WO2014082578A1 (zh) 2012-11-28 2014-06-05 南京圣和药业有限公司 杂芳基炔烃化合物及其应用

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8183242B2 (en) 2004-12-31 2012-05-22 Piaoyang Sun Aminopyrimidine compounds and their salts, process for preparation and pharmaceutical use thereof
WO2014082578A1 (zh) 2012-11-28 2014-06-05 南京圣和药业有限公司 杂芳基炔烃化合物及其应用

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